MATSUMOTO Shinya

    Department of Architecture Professor
Last Updated :2024/04/25

Researcher Information

Degree

  • Doctor of Engineering(Hiroshima University)
  • Master of Engineering(Hiroshima University)

URL

Research funding number

  • 30325154

J-Global ID

Research Areas

  • Social infrastructure (civil Engineering, architecture, disaster prevention) / Building structures and materials

Academic & Professional Experience

  • 2023/04 - Today  Kindai UniversityFaculty of Engineering Department of ArchitectureProfessor
  • 2012/04 - 2022/03  Kindai UniversityFaculty of Engineering Department of ArchitectureAssociate Professor
  • 2007/04 - 2012/03  Hiroshima UniversityGraduate School of EngineeringAssistant Professor
  • 2000/04 - 2007/03  Hiroshima UniversityFaculty of EngineeringResearch Associate
  • 2004/01 - 2004/12  University of Southern California, USACivil EngineeringVisiting Scholar, Ministry of Education, Culture and Science in Japan

Education

  • 1997/04 - 2000/03  Hiroshima University  Graduate School of Engineering  D. Eng.
  • 1995/04 - 1997/03  Hiroshima University  Graduate Scool of Engineering  M. Eng.
  • 1991/04 - 1995/03  Hiroshima University  Faculty of Engineering  B. Eng.

Association Memberships

  • Wood Technological Association of Japan   Japan Structural Consultants Association   The Japan Society of Seismic Isolation   JAPAN ASSOCIATION FOR EARTHQUAKE ENGINEERING   JAPAN CONCRETE INSTITUTE   Consortium for Building Research and Development   THE JAPAN SOCIETY FOR COMPUTATIONAL ENGINEERING AND SCIENCE   ARCHITECTURAL INSTITUTE OF JAPAN   

Published Papers

  • Ryo FUKUDA; Shinya MATSUMOTO; Masakazu TERAI; Daiji FUJII
    AIJ Journal of Technology and Design Architectural Institute of Japan 30 (74) 100 - 105 1341-9463 2024/02 [Refereed]
  • Shinya MATSUMOTO; Takaaki OHKUBO; Yutong Li
    AIJ Journal of Technology and Design Architectural Institute of Japan 29 (73) 1192 - 1197 1341-9463 2023/10 [Refereed]
  • Ryo Inoue; Takuro Mori; Shinya Matsumoto
    Buildings MDPI AG 13 (4) 1062 - 1062 2023/04 [Refereed]
     
    In order to confirm the effect of multiple moderate earthquakes on the response deformation of wooden houses at the time of a major earthquake, an earthquake response analysis, considering performance deterioration due to repeated small deformations, was conducted. As a result, it was found that the effect of multiple moderate earthquakes on the mean response deformation during a major earthquake was small. On the other hand, in some cases, the response deformation was up to 1.2 times larger than that of the sound case. In the case of a house where the response deformation was near the criteria of continuous use and/or collapse, the influence of the response magnification was large. This shows the importance of giving higher seismic performance compared to the standard. The response deformation during repeated medium earthquakes may increase for houses with considerably low seismic performance. However, for the houses that meet current standards, little to no increase in response deformation was seen.
  • Ryo Inoue; Takuro Mori; Shinya Matsumoto
    World Conference on Timber Engineering (WCTE 2023) World Conference on Timber Engineering (WCTE 2023) 2023
  • Ryo Inoue; Takuro Mori; Shinya Matsumoto
    Construction and Building Materials Elsevier BV 364 130016 - 130016 0950-0618 2023/01 [Refereed]
     
    To confirm how repeated small deformations caused by moderate earthquakes during the use period of a wooden house affect the shear resisting wall, in-plane shear experiments with numerous small deformations on walls using plywood, gypsum board, and wooden braces were conducted. Even with small deformations, it was found that the load decreased, and the equivalent stiffness decreased because of the repetition of the same deformation for plywood and gypsum board wall. At 200 times repetitions of 1/450 rad, the load decreased to about 85 % for the plywood wall and 70 % for the gypsum board wall. The load reduction due to repeated deformation of gypsum board wall was larger than that of other walls. However, the characteristic values were not significantly affected, even if the wall received repeated small deformations.
  • Ryo Inoue; Takuro Mori; Ayano Ariki; Shinya Matsumoto
    Construction and Building Materials Elsevier BV 342 128044 - 128044 0950-0618 2022/08 [Refereed]
     
    A single face shear experiment with numerous small deformations of the nailed joint was performed on plywood, OSB, MDF, and gypsum board to confirm whether cyclic deformations caused by moderate earthquakes affect the shear resisting wall of a wooden house. As a result, it was found that the maximum load and yield load are not significantly affected even when repeatedly small deformed. The reduction ratio of the load of gypsum boards was higher than that of other boards due to repeated deformation. Additionally, the equivalent stiffness of repeated specimens was reduced accordingly. It was supposed that the equivalent stiffness of the shear resisting wall decreases when it is repeatedly deformed.
  • Ariunaa Ganbaatar; Takuro Mori; Shinya Matsumoto; Ryo Inoue
    Buildings MDPI AG 12 (7) 978 - 978 2022/07 [Refereed]
     
    The purpose of this study is to utilize timber material to enhance the in-plane shear strength and deformation capacity of a brick wall. The proposed strengthening method is light-weight and easy to assemble and includes a timber frame, plywood panel, M12 threaded rod with chemical epoxy, and the hold-down anchor. To evaluate the effectiveness of the reinforced brick wall, three walls were tested under a cyclic horizontal load and static compression stress: the brick wall (BW wall), the reinforced brick wall with timber (BW-T wall), and the reinforced brick wall with timber and the hold-down anchor (BW-TA wall). The proposed prediction method of the Kamiya and Inayama Murakami models assessed the BW-TA wall. The rocking was caused by the failure of BW and BW-T walls. However, because the BW-T wall failed in the lowest part of the wall, the timber part retained the original shape of the brick wall. When the diagonal on the BW-TA wall failed, the horizontal load at maximum load increased by 22%, and the drift angle calculated from the diagonal measurement increased 4.6 times.
  • Yangyang LI; Ken’ichi KAWAGUCHI; Yosuke NAKASO; Atsushi MUTOH; Shinya MATSUMOTO
    AIJ Journal of Technology and Design Architectural Institute of Japan 28 (68) 133 - 138 1341-9463 2022/02 [Refereed]
     
    Extraction of significant data and data reduction are desired in the 3D measurement of existing buildings. In this research, two methods were applied to interpolate and thin out the point clouds. One is the weighted least squares method which can create a surface that is not affected by outliers. The other is the simple shape extraction method using principal component analysis. This method is suitable for point clouds of directional members such as columns.
  • Shinya MATSUMOTO; Masafumi SATO; Shigeki KOTOOKA; Youichi HAYASAKI; Makoto KOMORIYA
    Journal of Structural Engineering B Architectural Institute of Japan 68B 114 - 126 0910-8033 2022 [Refereed]
     
    The ceiling structure is required to have a rational construction method to avoid interference with equipment. In this study, we propose a non-braced ceiling structure that does not cause interference between the ceiling material and the equipment. At this time, the proposed ceiling structure uses moment resistance joining using lightweight square steel pipes. In this study, these ceiling structures are called "framed ceiling". First of all, we report on the results of the materialtensile test of the steel materials used for the ceiling structure. Next, a static loading test was conducted to grasp the mechanical characteristics of the ceiling structure. In this paper, we report the results of these tests.
  • ESO法を用いた部分的複層ラチスシェルの形態創生に関する研究
    水谷友香; 松本慎也; 小野聡子; 藤井大地
    構造工学論文集 67 183 - 188 2021/04 [Refereed]
  • Koichi KAMIMURA; Masatoshi MANABE; Shinya MATSUMOTO; Daiji FUJII
    Journal of Structural and Construction Engineering (Transactions of AIJ) Architectural Institute of Japan 83 (745) 459 - 465 1340-4202 2018 [Refereed]
  • Masataka Nomura; Shinya Matsumoto; Yoshihiro Sakino; Daiji Fujii
    Journal of Structural and Construction Engineering Architectural Institute of Japan 82 (742) 1885 - 1891 1881-8153 2017/12 [Refereed]
     
    Recently, response control dampers are used to improve seismic response of high-rise building. In general, it is required to arrange the dampers efficiently on the plane of high-rise building structure. However, it is not easy to obtain the optimal placement of the dampers, because the damper’s performance depends on the dynamic behavior. Therefore, in this paper, a method to obtain an optimal placement of the response control dampers on the plane of high-rise building structure is proposed. In the present method, first, the dampers are placed on all possible places in the frame structure, and then the dampers are gradually removed by Evolutionary Structural Optimization (ESO) method. The accumulated damping energy of the damper is used to determine the removal order. The effectiveness of the present method is verified by comparison with general placement plans.
  • Mizuki Maruyama; Shinya Matsumoto; Daiji Fujii
    Journal of Structural and Construction Engineering Architectural Institute of Japan 82 (739) 1383 - 1389 1881-8153 2017/09 [Refereed]
     
    In this paper, we focus on façade design of buildings used prefabricated walls, and we propose a method to design the prefabricated wall using topology optimization method. In this method, artificial design elements are added to the topology optimization method. In this paper, 2-axis symmetry and continuous pattern are adopted as the artificial design elements. Improved ESO (ESO) method is used for the topology optimization method. ESO method is improvement of initial ESO method, and in this method, benefits of BESO, Extended ESO, and CA-ESO methods are combined. In this paper, several numerical examples of computational morphogenesis of prefabricated walls are shown in order to verify the application possibility of the proposed method to the façade design of buildings used prefabricated walls.
  • Yohei Niiuchi; Shinya Matsumoto; Daiji Fujii
    Journal of Structural and Construction Engineering Architectural Institute of Japan 82 (731) 97 - 103 1881-8153 2017/01 [Refereed]
     
    Biomimetic technology (biomimetics) has recently attracted a great deal of attention in engineering field. Also, in architecture field, as represented by shell structure, biomimetics has been used for a long time. In recent years, the buildings which floors are supported by the structure such as trees or seaweeds have been built (Tod's Omotesando Building, Sendai Mediatheque). On the other hand, it is conceivable that the topology optimization can be used for biomimetics in architecture field, because it has been observed that the shape obtained by the topology optimization is relatively close to the natural form. Therefore, in this paper, several numerical examples of computational morphogenesis of building structures using IESO (Improved Evolutionary Structural Optimization) method3) are shown in order to verify the application possibility of the proposed method to the biomimetics. In IESO method, the design domain is divided in same eight-node brick elements (voxels), and in the optimization process, for solid element, it will be removed if the sensitivity number10) is less than the threshold value. This threshold value is obtained from the equation proposed in extended ESO12,13). This equation consists of the mean value of sensitivity number and the average deviation of sensitivity number with a control parameter. In the proposed method, the evolutionary volume ratio (reduction ratio) is given as an input data, and this control parameter is determined automatically in the program so as to satisfy the given reduction ratio approximately. Furthermore, in this paper, finishing algorithm is added to IESO. In this algorithm, first, the converged solution obtained by IESO is input, and then, the elements about 5% of the total elements of design domain are added according to the rule of CA method. Specifically, in order from the element which the sensitivity number is the greatest, the elements of the von Neumann neighborhood are added, and if the number of additional elements is greater than 5% of the total elements of design domain, this program is ended. Finally, the calculation of IESO is executed again with the smaller reduction ratio than the initial analysis (about 1/5∼1/10). Several numerical examples have been shown in order to demonstrate the effectiveness of the proposed method, and the effectiveness for the application to the biomimetics. By the numerical example which is used for design competition for a new train station for Florence (Fig.3), it is shown that natural and simple topology can be obtained by IESO (Fig.4), and it is also shown that if the finishing algorithm is added to IESO, the compliance of the solution obtained by IESO is less than CA-ESO (Fig.5∼8). (It was shown in the previous paper3) that the compliance of the solution obtained by SIMP is greater than CA-ESO.) In the next numerical examples, the structural morphologies which support the single or multi flat slab from various base support points is generated using IESO (Fig.9∼18). From these examples, it is shown that the structural morphologies like natural trees can be generated by IESO. It is concluded from these examples that IESO is one method which can be used for applying biomimetics to the building design.
  • Liang Li; Shinya Matsumoto; Takaaki Ohkubo
    AIJ Journal of Technology and Design Architectural Institute of Japan 22 (51) 435 - 833 1881-8188 2016/06 [Refereed]
     
    The vibration characteristics of structures have been considered to be one of the important evaluation indices to clarify the seismic performance. This paper presented the results that were obtained from the ambient vibration of three existing school buildings before and after measurements of seismic retrofitting using a wireless measurement system. Results and comparisons between the modal parameters, first natural periods and story stiffness obtained by the before and after measurements of seismic retrofitting demonstrated that the measurement and data processing techniques used are valid for evaluating the seismic retrofitting works.
  • Liang Li; Takaaki Ohkubo; Atsushi Teramoto; Shinya Matsumoto
    CIVIL ENGINEERING AND URBAN PLANNING IV CRC PRESS-TAYLOR & FRANCIS GROUP 367 - 371 2016 [Refereed]
     
    The vibration characteristics of structures have been considered to be one of the important evaluation indices to clarify the seismic performance. This paper presented the results that were obtained from the ambient vibration of an existing school building before and after measurements of seismic retrofitting using a wireless measurement system. Results and comparisons between the modal parameters, natural periods and displacements obtained by the before and after measurements of seismic retrofitting demonstrated that the measurement and data processing techniques used are valid for evaluating the seismic retrofitting works. Furthermore, to improve the reliability of this approach, a comparison of story rigidity between the measurement results and design documents was conducted. It is shown that this technique has high accuracy and usefulness.
  • Eenji Kosaka; Shinya Matsumoto; Daiji Fujii
    Journal of Structural and Construction Engineering Architectural Institute of Japan 81 (721) 547 - 553 1881-8153 2016 [Refereed]
     
    In this paper, a simple method for topology optimization of frame structures is proposed. In this method. ESO (Evolutionary Structural Optimization) method is applied to ground structure method. An exact optimal solution may not be obtained by ESO method because it is a heuristic method. However, the approximate solution useful for structural design can be obtained by this method. In the proposed method, the ground structure is generated by connecting all nodes by beam elements (but it is possible to limit the maximum length of the elements, and it is also possible to remove the unnecessary elements), and in the optimization process, the elements with the lowest strain energy are deleted based 011 ESO method. In order to demonstrate the effectiveness of the proposed method, in several numerical examples, the solutions obtained by the proposed method in compared with the solutions obtained by the density approach method (mathematical programming).
  • Yohei Niiuchi; Shinya Matsumoto; Daiji Fujii
    Journal of Structural and Construction Engineering Architectural Institute of Japan 81 (723) 851 - 858 1881-8153 2016 [Refereed]
     
    In this paper, an improved ESO (Evolutionary Structural Optimization) method for the topology optimization of 3D structures is proposed. In the proposed method, the idea of BESO method and the idea of extended ESO method are combined. In this method, the design domain is divided in same eight-node brick elements (voxels), and in the optimization process, for solid element, it will be removed if the strain energy is less than the threshold value. This threshold value is obtained from the equation proposed in extended ESO. This equation consists of the mean value of sensitivity number and the average deviation of sensitivity number with a control parameter. In the proposed method, the evolutionary volume ratio (reduction ratio) is given as input data, and this control parameter is determined automatically in the program so as to satisfy the given reduction ratio approximately. Several numerical examples are shown in order to demonstrate the effectiveness of the proposed method for 3D structures.
  • 常時微動計測による道路橋床板の振動モードの推定と新設高架橋の初期値計測
    李亮; 松本慎也; 大久保孝昭; 米倉亜州夫
    コンクリート工学年次論文集 37 (1) 1837 - 1842 2015/07 [Refereed]
  • 無線加速度センサを用いた振動計測システムの老朽橋梁への適用と有効性
    李亮; 大久保孝昭; 松本慎也; 宮本文穂
    コンクリート工学年次論文集 36 (2) 1309 - 1314 2014/07 [Refereed]
  • MEMS技術を活用した寺院建築の振動計測に関する研究
    松本 慎也; 光井 周平; 大久保 孝昭; 藤谷 義信
    歴史都市防災論文集 7 109 - 116 2013/07 [Refereed]
  • Takaaki Ohkubo; Takashi Inohara; Shinya Matsumoto
    Journal of Structural and Construction Engineering 77 (673) 333 - 340 1340-4202 2012/03 [Refereed]
     
    The purpose of this research is reducing the cracks produced in the plastering mortar that has contraction restrained by ground concrete about the outer wall and floor component of reinforced concrete buildings. It tried to evaluate the relation between the construction time of plastering mortar and the small crack produced on the mortar surface by this paper. The examination object which finished in the middle of the month every month of one year, and constructed mortar was exposed to the outdoors and indoor using the small concrete with plastering mortar specimens, and the generating situation of a crack was observed. Consequently, it was experimentally shown clearly that small cracks become easy to produce the time when temperature falls in one month after the mortar plastering.
  • Shinya Matsumoto; Takaaki Ohkubo; Yasuaki Watanabe
    Journal of Structural and Construction Engineering 77 (672) 221 - 230 1340-4202 2012/02 [Refereed]
     
    The purpose of this study is to develop the new seismic strengthening method of existing wooden houses. In this study, the fiber reinforced plastics (FRP) are used as the reinforcement material. This FRP hardens by irradiating the ultraviolet ray. In this study, we develop a good workability seismic strengthening method for existing wooden houses by using this FRP sheet. As a result, we were able to develop the new reinforcement design for the braced frame structural wall of the element ultimate strength (the wall ultimate strength factor) as over 4.0(kN/m) which was target value in this study.
  • Shinya Matsumoto; Eiji Motokawa; Daiji Fujii; Kazuhiko Ohta; Suenori Arinaga; Takaaki Ohkubo
    AIJ Journal of Technology and Design Architectural Institute of Japan 16 (34) 1187 - 1192 1341-9463 2010/10 [Refereed]
     
    In this study, a simple system of seismic diagnosis is developed. In this system, potable accelerometer and impact force are used. The potable accelerometer was developed by Matsuura and Ohkubo. It is possible to measure vibration easily, because it dose not need wiring and it is compact. The impact force is used to vibrate wooden house. It can be given by human power, but in this study a vibration exciter is made in order to evaluate the present system precisely. The proposed system is evaluated by measuring the natural period and the damping factor of the experiment wooden house in Kinki University.
  • Hideo Araki; Shinya Matsumoto
    AIJ Journal of Technology and Design 日本建築学会 16 (32) 63 - 68 1341-9463 2010/02 [Refereed]
     
    This report presents the dynamic characteristics of two buildings of which structural systems consist of pre-cast concrete walls, connecting to reinforced concrete beams with bolts. One of the buildings was constructed 13 years ago and the other was newly constructed at the same site. Two buildings have approximately same dimensions. Array observations are done with seismometers in the buildings and the ground. Stiffness degradations by moderate earthquake were investigated in comparisons with dynamic properties of two buildings.
  • Shinya Matsumoto; Takaaki Ohkubo
    Journal of Structural and Construction Engineering 日本建築学会 75 (648) 241 - 249 1340-4202 2010/02 [Refereed]
     
    In this paper, it is shown that a crack prediction analysis for drying shrinkage of wet finishing plastering materials on the external wall. In this analysis, the drying shrinkage strain in the mortar is determined by proposal measurement procedure for the age. The internal stress in the finishing mortar is analyzed by finite element method based on the plane stress problem for the drying shrinkage strain derived from experimental measurement. We illustrate the method which predicts the crack generation point and time in finishing mortar. This present method is formulated by two-dimensional finite element method to apply the crack prediction for the opening on wall corners. The effectiveness of present method is verified by comparing the numerical results with the experimental tests. We investigate analytically the typical characteristics of the drying shrinkage of the external wall using wet finishing plastering material by numerical studies.
  • 松本 慎也; 大久保 孝昭; 官丸 史江; 中島 史郎
    Proceedings of the Japan Concrete Institute 公益社団法人日本コンクリート工学会 30 (2) 229 - 234 1347-7560 2008/07 [Refereed]
     
    本研究は,建築生産を合理化・高度化するためにRFID技術(無線ICタグ)を活用することを検討するものである。建築生産の現場においては,システム構築において現場で用いるツール機器の選定が重要となる。本研究では,Personal Data Assistance(PDA)を用いた,PCaコンクリート部材の出荷・受入検査を対象としたシステムを構築し,その検討を行った。このPDAシステムを用いたシミュレーション実験を行った結果を報告するとともに,今後のシステム開発に有用となる建築生産実務者の意見を纏めた。
  • Takaaki Ohkubo; Shinya Matsumoto; Yasuhiro Ryuda; Daisuke Sawaki
    Journal of Structural and Construction Engineering 一般社団法人日本建築学会 73 (623) 27 - 34 1340-4202 2008/01 [Refereed]
     
    The purpose of the experiments in this paper is to clarify the physical and dynamic properties of the concrete at seventy years age which was suffered from atomic bombing at 1945 in Hiroshima The compressive strength and Young's modulus of the concrete by the side of an atomic bombed place showed the value lower than the other concrete specimens. The coefficient of water absorption of the concrete was very high and it became clear that there was almost no freeze dissolution resistance. And neutralization of concrete was progressing very unusually. Moreover, as concerns the concrete by the side of an atomic bombed place, neutralization from the outdoors side was higher than that of inner side. It is considered to have influenced the above-mentioned examination result greatly that especially concrete temperature rose in 500 degrees C - 750 degrees C . The necessity for performing carefully the maintenance of the RC building which was suffered from atomic bombing was shown by this research.
  • 藤井雅也; 松本慎也; 村上雅英; 杉本敏和; 井上隆二; 完山利行; 小松幸平
    日本建築学会構造系論文集 一般社団法人日本建築学会 72 (619) 105 - 110 1340-4202 2007/09 [Refereed]
     
    The general influence of long term load upon shear behavior of nailed shear walls was confirmed in in-plane shear test of the shear walls in which the devices to measure the axial force acting on the bottom reinforcements were installed. The 24 experimental parameters are decided by the combination of presence of nailing on sill through sheet, connection types between columns and sill, and the several magnitude of long term loads. The formulae to calculate the shear resistance corresponding to the apparent shear strain of 1/120 rad. and the maximum shear resistance were derived considering the influence of long term load. The formulae were experimentally examined for their validity.
  • 松本慎也; 村上雅英; 稲山正弘; 藤谷義信
    日本建築学会構造系論文集 一般社団法人日本建築学会 72 (617) 103 - 110 1340-4202 2007/07 [Refereed]
     
    In this paper, and analytical model of wooden structures with the sheathed shear walls is shown. In this model, the stretching rigidity of the plywood is assumed a rigid body. Therefore, the degree of freedom can be reduced. This analysis method can analyze walls with random nailing arrangement. And, it is possible to handle multiple walls. The advantage of this method is to simple consider the sheathed shear wall for existing frame analysis program. The effectiveness of this analytical method is verified by comparing with the experimental result and we investigate the mechanical characteristics of the sheathed shear walls numerically.
  • 根本かおり; 松本慎也; 佐藤大輔; 大久保孝昭
    コンクリート工学年次論文集 日本コンクリート工学協会 29 (1) 861 - 866 1347-7560 2007/07 [Refereed]
     
    本研究は左官モルタル仕上げを施したコンクリート壁面において,外気環境に伴う温冷ムーブメントが左官モルタルとコンクリートとの間の剥離発生に及ぼす影響を評価することを目的として実施した。実験は試験体の置かれた外気環境を変化させ,試験体内部の温度分布の経時変化を測定し,温度分布の変化を測定した。また,解析ではFEMによる熱伝導解析が試験体内部の温度変化や温度分布を精度良く算定できることを示した。さらに,弾性解析により左官モルタルとコンクリートとの層間に生じる応力を算定し,外気温が急激に低下するときに剥離が発生しやすいことを明かにした。
  • MATSUMOTO Shinya; OHKUBO Takaaki; MORI Tatsuya; KOYAMA Itaru
    Proceedings of the Japan Concrete Institute 公益社団法人日本コンクリート工学会 29 (2) 253 - 258 1347-7560 2007/07 [Refereed]
     
    本研究は,建築生産を合理化・高度化するためにRFID技術(無線ICタグ)を活用することを検討するものである。建築施工において,筆者らは建築材料・部材の出荷・受入検査工程での利用が,RFII)技術の有効活用方策の一つと考えている。本報告では,PCaコンクリート部材の出荷・受入検査におけるRFID技術の有効活用方策のための業務フローを提案し,シミュレーション実験を行った結果を報告する。今後の活用のためにシミュレーション結果に関する建築生産実務家の意見を纏めるとともに,PCaコンクリート部材に対する読込み・書込みに関する無線透過性の実験結果も併せて示している。
  • 根本 かおり; 松本 慎也; 佐藤 大輔; 大久保 孝昭
    Proceedings of the Japan Concrete Institute 公益社団法人日本コンクリート工学会 29 (1) 861 - 866 1347-7560 2007/07 [Refereed]
     
    本研究は左官モルタル仕上げを施したコンクリート壁面において,外気環境に伴う温冷ムーブメントが左官モルタルとコンクリートとの間の剥離発生に及ぼす影響を評価することを目的として実施した。実験は試験体の置かれた外気環境を変化させ,試験体内部の温度分布の経時変化を測定し,温度分布の変化を測定した。また,解析ではFEMによる熱伝導解析が試験体内部の温度変化や温度分布を精度良く算定できることを示した。さらに,弾性解析により左官モルタルとコンクリートとの層間に生じる応力を算定し,外気温が急激に低下するときに剥離が発生しやすいことを明かにした。
  • 根本かおり; 眞方山美穂; 大久保孝昭; 松本慎也
    日本建築学会構造系論文集 一般社団法人日本建築学会 72 (613) 7 - 14 1340-4202 2007/03 [Refereed]
     
    This experimental study aimed to clarify some influence of several initial curing conditions to give the adhesion unity of concrete and finishing mortar. In this experiment, the initial curing conditions were set six types of environment conditions. The six types of environment were standard curing, wind and standard curing, hot and wet curing, freeze and dry curing, hot and moisture curing, and, freeze fusion repetitions curing. Each initial curing gave for finishing mortar when it applied on concrete specimens. After each initial curing finished, these each specimen was burdened two severe environments which were sunshine sprinkling repetitions or freeze fusion repetitions. And then, these specimens were measured distortion and change of adhesive strength occurred to them.
  • 藤原亮二; 松本慎也; 藤谷義信
    鋼構造年次論文報告集 11 345 - 350 1881-5367 2003/11 [Refereed]
  • ZHANG J; 松本慎也; 藤谷義信; 春日康博
    鋼構造年次論文報告集 11 333 - 338 1881-5367 2003/11 [Refereed]
  • NITTA Kitao; IKEDA Hideki; SAKATA Norihiko; TAKAYAMA Naoyuki; MATSUMOTO Shinya; FUJITANI Yoshinobu
    Journal of architecture and building science 一般社団法人日本建築学会 17 (17) 141 - 145 1341-9463 2003/06 [Refereed]
     
    This is a technical report for the development of slab including L-shaped void, which is compensating the faults by not only 1 way void slab but also 2 way one. In this study, we report the primary rigidity, yielding rigidity, and the shape of crack in this loading condition. This construction has two characteristics. One is mitigating the degree of anisotropy by using the slab with L-shaped void tube. Two is simplifying the design for slabs by regularly arranging the unit of tube.
  • 松本慎也; 藤谷義信; 野島千里; 岩佐裕一; 樫原健一
    構造工学論文集 B 一般社団法人日本建築学会 49B 251 - 257 0910-8033 2003/03 [Refereed]
     
    Wooden structures have been used in Japanese temples and shrines from the ancient. But the mechanical behaviors of these structures are not clear because of complexity of the construction method and the anisotropy of woods. Today, it is important to clarify the structural mechanism of the construction method of these Japanese tradition wooden structures so as to establish the preservation and repair technique of cultural assets. The purpose of this study is to construct the frame analysis method for easily obtaining the complicated mechanical characteristic of wooden structures by frame analysis. In this paper, the seismic response analysis of Japanese traditional wooden structures using the spring element is shown.
  • ZHANG J; 松本慎也; 藤谷義信
    鋼構造年次論文報告集 9 213 - 218 1881-5367 2001/11 [Refereed]
  • 藤原亮二; 松本慎也; 藤谷義信
    構造工学論文集 B 一般社団法人日本建築学会 47B 21 - 24 0910-8033 2001/03 [Refereed]
     
    The optimaization of a frame structure subject to a elasto-plastic deformation is presented until the building comes to a collapse in order to ensure the safety of the building for the large earthquake. In this paper, Two the mathematical programming method is based on total volume and ultimate strength of a frame structure. We investigate the validity of these optimized design variables and collapse mode by numerical examples with two formulations that replaced constraint with objective function.
  • MATSUMOTO Shinya; NOJIMA Chisato; IWASA Yuichi; KATAGIHARA Kenichi; FUJITANI Yoshinobu
    Journal of structural engineering. B 一般社団法人日本建築学会 Vol.47B 75 - 78 0910-8033 2001/03 [Refereed]
     
    Wooden structures have been used in Japanese temples and shrines from the ancient. But the mechanical behaviors of these structures are not clear because of complexity of the construction method and the anisotropy of woods. Today, it is important to clarify the structural mechanism of the construction method of thesis Japanese tradition wooden structures, when saving and repair technique of cultural assets are established. Therefore the analysis is desired that efficiently calculates these factors. The purpose of this study is to construct the frame analysis method for easily obtaining the complicated mechanical characteristic of wooden structures by frame analysis. In this paper, it is shown that the modeling of column rocking resistance in Japanese traditional wooden structures for frame analysis using the spring element.
  • 藤原亮二; 松本慎也; 藤谷義信
    鋼構造年次論文報告集 8 373 - 378 1881-5367 2000/11 [Refereed]
  • 藤井大地; 松本慎也; 藤谷義信; 菊池昇
    構造工学論文集 B Architectural Institute of Japan 46B 1 - 8 0910-8033 2000/03 [Refereed]
     
    In this paper, a topology optimization method of frame structure using the ground structure approach is shown. In this method, the finite element with the spring for bending in both edges, is used. By using this element, it is possible to analyze rigid frame, truss, and semi-rigid frame. In the ground structure approach for topology design, the problem which minimizes the compliance (maximizes the stiffness) for a given total mass of the structure is solved. In this paper, the SLP method with move limit is used to solve this optimization problem, and the method for removing the members which have relatively small cross section from the optimum solution is shown. The effectiveness of this method is demonstrated by some numerical examples.
  • MATSUMOTO Shinya; KASUGA Yasuhiro; FUJII Daiji; FUJITANI Yoshinobu
    Journal of structural and construction engineering 一般社団法人日本建築学会 65 (528) 113 - 119 1881-8153 2000/02 [Refereed]
     
    In this paper, an analysis method by computers based on optimum design of frames with semi-rigid connection is shown. This method evaluates the connection stiffness and the member sizes as design variables. The discrete member sizes are evaluated by referring to the database system as continuous function. The optimization algorithm minimizes the cost of not only members but also the connections of the structure subjected to constraints on stresses and displacements under specified design loads. Four examples are presented to illustrate features of this optimization method.
  • 松本慎也; 平田裕一; 藤井大地; 藤谷義信
    鋼構造年次論文報告集 7 419 - 426 1881-5367 1999/11 [Refereed]
  • MATSUMOTO Shinya; ARAI Hiroshi; KASUGA Yasuhiro; HIRATA Yuichi; YAMAMOTO Kenji; FUJII Daiji; FUJITANI Yoshinobu
    Journal of structural engineering. B 一般社団法人日本建築学会 45 249 - 258 0910-8033 1999/03 [Refereed]
     
    In this paper, the method of the optimal design for plane steel frame structures is presented. The sectional areas are automatically selected so as to be a minimum weight frame under the restraint conditions of the limited angle between the layers and the allowable stress in the composed members. In the present method, the sensitivity coefficients are numerically calculated by the finite difference method and the actual members on the market are selected by using the error functions between the obtained numerical solution and the discrete actual sectional properties of members. The interesting optimal solutions, which have the three local solutions, are obtained in an example of the plane steel frame with 5 floors and 3 spans.
  • 松本慎也; 藤井大地; 藤谷義信
    鋼構造年次論文報告集 4 339 - 346 1881-5367 1996/11 [Refereed]

Books etc

Conference Activities & Talks

  • EVALUATION OF SINGLE SHEAR PERFORMANCE OF NAILED JOINT DAMAGED BY CYCLIC DEFORMATION DUE TO MODERATE EARTHQUAKES
    Ryo Inoue; Takuro Mori; Ayano Ariki; Shinya Matsumoto
    WCTE World Conference on Timber Engineering 2021, Santiago, Chile  2021/08
  • Topology Optimization of Free Formed Shells using Improved ESO  [Not invited]
    Koki OTANI; Koichi KAMIMURA; Shinya MATSUMOTO; Daiji FUJII
    Proceedings of the IASS Annual Symposium 2019, Barcelona, Spain  2019/10
  • Study on structural form creation using HMPS method and CA-IESO method  [Not invited]
    Yuto Otsubo; Daiji Fujii; Shinya Matsumoto
    Proceedings of the 12th ISAIA, Oct 23-26, 2018, Pyeongchang, Korea  2018/10
  • Topology optimization of shell structures using Improved ESO method  [Not invited]
    Koichi Kamimura; Shinya Matsumoto; Daiji Fujii
    Proceedings of the 12th ISAIA, Oct 23-26, 2018, Pyeongchang, Korea  2018/10
  • Building design using topology optimization method  [Not invited]
    Momoko Watanabe; Shinya Matsumoto; Daiji Fujii
    Proceedings of the IASS Annual Symposium 2017, Hanburg  2017/09
  • Topology optimization of 3D structures using Hamiltonian MPS method and Improved ESO method  [Not invited]
    Masaki Yamashita; Masatoshi Manabe; Shinya Matsumoto; Daiji Fujii
    Proceedings of the IASS Annual Symposium 2017, Hanburg  2017/09
  • Computational morphogenesis of continuum shell structures using Improved ESO method  [Not invited]
    Koichi Kamimura; Shinya Matsumoto; Daiji Fujii
    Proceedings of the IASS Annual Symposium 2017, Hanburg  2017/09
  • SCISSORING ORIGAMI INSPIRED DEPLOYABLE BRIDGE FOR A DISASTER  [Not invited]
    Kotaro Adachi; Ichiro Ario; Yuki Chiakhiro; Shinya Matsumoto
    Footbridge 2017 conference in Berlin  2017/09
  • Topology optimization of 3D structure using improved ESO method  [Not invited]
    Yohei Niiuchi; Shinya Matsumoto; Daiji Fujii
    Proceedings of the IASS Annual Symposium 2016, Tokyo  2016/09
  • DEVELOPMENT OF ASSEMBLING LARGE CROSS-SECTION TIMBER JOINT SYSTEM BY HIGH DUCTILITY WOOD FRAME STRUCTURE  [Not invited]
    Shinya Matsumoto; Hajime Okamoto; Mitsuhiro Takemoto; Masanori Sato
    WCTE World Conference on Timber Engineering 2016  2016/08
  • A Study on the Detection of Bridge Slab Deterioration Using a Wireless Vibration Measurement System  [Not invited]
    Liang Li; Takaaki Ohkubo; Shinya Matsumoto
    SMAR 2015 - Third Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures  2015/09
  • Application of ambient vibration tests on an existing school building to evaluate the effectiveness of retorofitting  [Not invited]
    Liang Li; Takaaki Ohkubo; Atsushi Teramoto; Shinya Matsumoto
    Civil Engineering and Urban Planning IV  2015/07
  • STUDY ON TIMBER FRAMED JOINTS USING DRIFT PINS AND UV-HARDENING FRP  [Not invited]
    Shinya Matsumoto; Shuhei Mitsui; Takaaki Ohkubo
    WCTE World Conference on Timber Engineering 2014  2014/08
  • Development of The High-strength and High-ductility Timber Framed Joints using Drift Pins and Fiber Reinforced Plastics  [Not invited]
    Shinya Matsumoto; Takaaki Ohkubo; Yasuaki Watanabe; Etsuo Kajita
    WCTE World Conference on Timber Engineering 2012  2012/07
  • Stability of Latticed Shell with Uniform-Length Hexagonal Grid  [Not invited]
    Makoto OHSAKI; Naoya ASHIYA; Shinya MATSUMOTO; Shinnosuke FUJITA
    IABSE-IASS-2011 London Symposium Report  2011/09
  • NUMERICAL EXAMPLES OF TRADITIONAL TIMBER BUILDING USING FRAME ANALYSIS WITH SEMI-RIGID SPRING ELEMENTS  [Not invited]
    Shinya MATSUMOTO; Yoshiyuki SUZUKI
    International Symposium on Disaster Simulation & Structural Safety in the Next Generation 2011 (DS'11)  2011/09
  • Preliminary Reports on the 2011 Off the Pacific coast of Tohoku Earthquake in Japan  [Not invited]
    Hideo ARAKI; Shinya MATSUMOTO
    VII INTERDISCIPLINARY SCIENTIFIC RESEARCH CONGRESS (IV ISRC)  2011/06
  • Study on the numerical analysis for structural detail of timber frame based on partial compressive strain behavior of the joints  [Not invited]
    Shinya Matsumoto; Yoshinobu Fujitani; Yoshiyuki Suzuki
    WCTE World Conference on Timber Engineering 2010  2010/06
  • Earthquake Response Analysis for Traditional Wooden Buildings using Semi-Rigid Frame Model  [Not invited]
    Shinya Matsumoto; Yoshiyuki Suzuki
    Safety, Reliability and Risk of Structures, Infrastructures and Engineering Systems - Furuta, Frangopol & Shinozuka (eds)  2009/09
  • Earthquake Response Analysis for Japanese Traditional Wooden Buildings with Mud Walls Using Semi-Rigid Frame Model  [Not invited]
    Shinya Matsumoto; Yoshiyuki Suzuki
    The 14th World Conference on Earthquake Engineering(14WCEE), Beijing, China  2008/10
  • Study on analytical method for wooden structures with sheathed shear walls  [Not invited]
    Shinya Matsumoto; Yoshinobu Fujitani
    International Conference on Computational Methods(ICCM2007), International Conference Center Hiroshima, Japan  2007/04
  • Study on dynamic characteristics of timber frame structure by microtremor measurements  [Not invited]
    Naoya Shojo; Yoshinobu Fujitani; Shinya Matsumoto; Yoshiaki Ohno; Yoshimitsu Ohash
    Archives of Civil and Mechanical Engineering  2005/01
  • Elasto-plastic Earthquake Response Analysis of Framed Structure with Semi-rigid Connections  [Not invited]
    Y. Fujitani; D. Fujii; S. Matsumoto
    International Scientific Conference, Challenges to Civil and Mechanical Engineering in 2000 and beyond  1997/06

MISC

Awards & Honors

  • 2007/07 Concrete Engineering Lecture Annual Paper Encouragement Prize

Research Grants & Projects

  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2020/04 -2023/03 
    Author : 大久保 孝昭; 松本 慎也
     
    本研究は,RC造建築物の補修としてニーズが高い①ひび割れ補修,②剥落防止補修,③防水補修の3工法を対象として,補修効果の持続性を定量的に評価する技術を確立し,先導的なデータを蓄積する。具体的には,本研究は「各種補修工法の補修効果の持続性に関する評価方法の提案と実験データ蓄積,および実建築物で補修効果を計測する技術の提案と検証」という明確な目的を設定して検討を行う。また,本研究の特徴として,広島市に現存する被爆RC造建築物「被服支廠倉庫」の実証実験を実施することが挙げられる。 2021年度は,「①ひび割れ補修」に関しては,実験室レベルにおけるひび割れ挙動再現手法を確立し,ひび割れ注入工法とアクリル塗膜による壁面全面被覆工法の補修効果持続性を比較できた。2022年度はさらに多くの補修工法の比較を行う予定である。また,本課題では,ひび割れ補修効果を実現場で評価できる簡易試験方法も提案し,その実用化の見通しを得た。「②剥落防止補修」に関しては,打診検査による評価手法の高度化に取り組み,一定の成果を得た。また,常時モニタリング手法として,光ファイバ(FBG)を用いた剥離判定手法の提案を行い,実験室レベルで,温冷ムーブメントによる剥離の進行状況を明らかにすることができた。さらに被爆建築物(被服支廠倉庫)に生じている不同沈下による劣化を,常時微動で判断する技術の確立にも取り組んだ。「③防水補修」に関しては,アクリル系塗膜防水材を活用した外壁防水補修技術に取り組むとともに,被服支廠倉庫の予備調査では,防水補修工法の工事品質を高めるための漏水起点の検知技術の開発に取り組んだ。2022年度は防水と断熱性能向上を組み合わせた外壁・屋根補修工法を対象として,熱流センサを用いた評価技術について検討を行う予定である。
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
    Date (from‐to) : 2015/04 -2018/03 
    Author : Matsumoto Shinya
     
    The purpose of this research is establishment of safety performance evaluation system to prevent the accident of falling off of a building ceiling, and development of new seismic ceilling structure. In this study, MEMS highly sensitive triaxial accelerometer based on wireless technology is used to quantitatively check the seismic ceilling members such as steady braces for safety performance evaluation system, and we investigated the performance for the quantitative inspection system. In addition, we proposed a new ceiling structure using special processed lightweight section steel with a large ceiling structure exceeding the ceiling height of 3m, and its seismic resistance were examined by experimental test.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2014/04 -2017/03 
    Author : OHKUBO TAKAAKI
     
    The purpose of this study is to establish a diagnostic technique to prevent physical deterioration of members and deterioration of habitability more quickly by monitoring moisture movement inside the members, such as wetting and dry/wet repetition, concerning the outer wall of the building. First of all, we constructed a system that captures data by mobile phone by NFC technology utilizing IC tag. Using this measurement system, various experiments were conducted with simulated members assuming actual building materials and actual buildings. As a result, this research enabled us to build the foundation of the wetness monitoring system in the buildings.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2011/04 -2014/03 
    Author : ARIO ICHIRO; SAKUNO YUJI; FUDOJI HIROSHI
     
    In recent years, the natural disasters by earthquake, tsunami, local severe rain, etc. occur frequently, lifelines, such as a road and a bridge, cut in pieces, and the disaster risk to them is increasing in the world. Restorative speed is the priority and the important issue in connection with a life. In order to corroborate development of a deployment structure and its possibility, this research task actually manufactures the experiment bridge of a temporary bridge system "Mobile bridge" foldable to multiplex based on a smart structural concept, and there is the possibility by design analysis in verifying and intensity experiment. By extending technology as a structure of the innovative bridge with the multiplex folding scissors mechanism produced from the analytical theory of post-buckling behavior on structural engineering issues. The experimental bridge of a next-generation safe and smart bridge system has been developed.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2011/04 -2014/03 
    Author : OHSAKI Makoto; ISOBE Daigoro; MIYAMURA Tomoshi; ZHANG Jingyao; YAMASHITA Takuzo; WATANABE Hidekazu
     
    Components of numerical experiment system have been developed for optimization of passive control and isolation devices. This sytem consists of a consitutive model and its identification method of steel material under cyclic deformation, a probabilistic approach for obtaining accurate approximate optimal solutions within small number of analyses, and a probabilistic method for estimating bounds of parameters and responses of buinding frames. It has been shown that the energy dissipation and deformation capacities can be improved by optimizing the shape of shear panel damper. Furthermore, it has been shown in the analysis of base-isolated building that the local responses of the rubber bearings can be evaluated in detail using a high-performance finite element analysis.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (A)
    Date (from‐to) : 2011/04 -2014/03 
    Author : MATSUMOTO Shinya
     
    Wood materials have a weak point that the material strength for fiber orthogonal direction is lower than fiber direction. The purpose of this study is development of high strength and high ductility wood structural element ability to hold the larger span. In this study, the ultraviolet-rays hardening FRP are used to improve the strength weakness of wood materials. As the result, the high ductility timber structural elements were realized that applied to the drift pined joints with insert-steel gusset plate.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2010 -2012 
    Author : OHKUBO Takaaki; MATSUMOTO Shinya; FUJIMOTO Satoshi
     
    In order to determine the degree of deterioration of the members and buildings, in real buildings, as a technology-agnostic constraints of measurement,this study revealed the following. (1) The wireless acceleration MEMS sensor developed in this study, it is possible to accurately measure the vibration characteristics of the structure, the traffic vibration and earthquake, was laid the foundation of the diagnostic system for long service life of the structure. (2) To build a basis for the practical application of information storage and available system for sophisticated maintenance of the structure using theIC tags, it was possible to achieve some practical use. (3)We manufactured a wetting sensor utilizing the NFC technology and wireless, is carried out basic experiments for practical application to obtain the prospect.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (S)
    Date (from‐to) : 2007 -2011 
    Author : SUZUKI Yoshiyuki; KOMATSU Kohei; SHIMOKAWA Yuichi; NAKAO Masato; KITAMORI Akihisa; HATA Masanori; NAKAJI Hiroyuki; MORI Takuro; SUDA Tatsuru; MATSUMOTO Shinya; MUKAIBO Kyosuke; MUKAI Yoichi; YAMADA Koji; GOTOU Masami; SAITO Yukio; SAITO Yukio; TANAHASHI Hidemitu
     
    The objective of this study was to develop the integrated design method for traditional wooden buildings based on their structural details. The structural mechanisms and the failure patterns of timber post-and-beam joints and mud-plastered bearing walls were clarified by static and dynamic full-scale experiments. The analytical and numerical studies were also conducted to generalize the testing results. These results will be applicable to the structural design of traditional wooden buildings.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
    Date (from‐to) : 2009 -2010 
    Author : MATSUMOTO Shinya
     
    The purpose of this study is to develop the new seismic strengthening method of existing wooden houses. In this study, the fiber reinforced plastics (FRP) are used as the reinforcement material. This FRP hardens by irradiating the ultraviolet ray. In this study, we develop a good workability seismic strengthening method of existing wooden houses by using this FRP sheet. As a result, we were able to develop the new reinforcement design for the braced frame structural wall of the element ultimate strength (the wall ultimate strength factor) as over 4.0(kN/m) which was target value in this study.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2007 -2009 
    Author : OHKUBO Takaaki; FUJIMOTO Satoshi; MATSUMOTO Shinya; HASEGAWA Takuya; LI Zyuguo
     
    This research aims at rationalization of the selecting technique of a crack repair method of construction with the movement occurred in RC structure. In order to select rational crack repair material, some experiments were performed paying attention to the necessity for evaluating not only the repair effect immediately after repair (initial performance) but its durability. In this research, the material currently used widely as crack repair material was extracted, consequently, it showed clearly that the change of a repair material simple substance and the fall of the repair effect by promotion degradation external force differ from each other for every repair material, and the importance of evaluating the durability of the repair effect was shown. Moreover, the inspection technique of evaluation of construction and the repair effect in a crack pouring method of construction were proposed.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
    Date (from‐to) : 2005 -2006 
    Author : OHKUBO Takaaki; MATSUMOTO Shinya
     
    The purpose of this study is to clarify the separation generating mechanism in the laminated composites of reinforced concrete building and wooden building, and it carried out in order to verify and propose effective separation prevention technology from both sides of an experiment and numerical analysis. (1) It was clarified by FEM analysis that the separation between the finishing mortar and concrete is easy to occur when ambient temperature falls rapidly. (2)By permeation of the water to the interface of mortar and concrete, especially at the part that a deformation of finish mortar is restrained, adhesive strength really leads to decrease d. (3) At the slanting outer wall with the high possibility of the flood by rain, it was clarified that it is so important to prevent the permeation of water into the interface of mortar and concrete. (4) When constructing in about 20-degree Centigrade environment, it was shown that the curing period of concrete can maintain comparatively high quality at least three days. In about 10-degree Centigrade environment, it was shown clearly that the resistance over sun shine and a water spray can be kept high by curing period on the 10 days or more. (5)In about 30-degree Centigrade environment, the tendency that the adhesive strength decreased by sun shine and water spray was accepted. In the range of this experiment, it was shown in the environment the hot season that it is desirable to secure a curing period 14 days or more.


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