Next-Generation Design of Building Structures-DfX

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Next-Generation Design of Building Structures-DfX

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The sustainability of structural design and construction is attracting the attention of researchers and engineers, as well as structural safety performance. The research unit aims to the two key research themes, i.e., (1) safety analysis and optimization of structures under extreme loads (e.g., post- earthquake fire, long-period ground motion (LPGM), and near-fault ground motion (NFGM)), including the application of high-performance materials, and (2) recycling of wastes arising from the extreme loads and strengthening of the structures after subjected to the extreme loads. The two themes also can be shortly called Design for Safety and Sustainability (DfS²). The research activities will be conducted using advanced numerical methods (FEM and DEM), algebraic analysis, and experimental verification, to develop technology to promote the Next-generation design of structures. The main research topics that research units would like to conduct are the safety of concrete structures, structural analysis and optimization, Fiber-reinforced polymer (FRP)-repaired structures, and resilient structures, and evaluation and optimization of the structures with Design for deconstruction, and optimization of eco concrete such as volcanic ash concrete, development and application of high-performance materials (Textile reinforced cementitious composite, structural health monitor cementitious composite, nanotechnology for construction), and sustainable structural design, etc.

Cluster members

Coordinator

Gaochuang CAI Website

Associate Professor
IROAST, Kumamoto University, Japan

Adjunct professor
École Nationale d'Ingénieurs de Saint-Étienne (ENISE), École Centrale de Lyon (ECL), University of Lyon, FRANCE

Japan
Kazuo DAN Website

Professor
FAST, Kumamoto University

Japan
Amir SI LARBI Website

Full professor
CentraleLyon ENISE, University of Lyon
＊IROAST Visiting Professor

France
Konstantinos Daniel TSAVDARIDIS Website

Full professor
School of Mathematics, Computer Science and Engineering, City, University of London
＊IROAST Visiting Professor

U.K.
Danièle WALDMANN Website

Full professor
Insitut für Massivbau(Institute of Concrete and Masonry Structures), Technischen Universität Darmstadt

Germany
Yan XIAO Website

Qiushi Distinguished Chair Professor
Zhejiang University–University of Illinois Institute (ZJU-UIUC Institute), Zhejiang University

China

Achievement

Publications

2025

Seismic experimental research on damaged resilient reinforced concrete columns retrofitted by FRP sheets

Yunjian He, Gaochuang Cai, Cheng Xie, Prafulla Bahadur Malla, Yiyuan Li, Amir Si Larbi

Engineering Structures, 332, 120119, 2025

https://doi.org/10.1016/j.engstruct.2025.120119

2024

Design Methods of Aluminium Pin-Ended Columns with Topology-Optimised Cross-Sections

Güler, M. A., Artac, A., Yildirim, B., & Tsavdaridis, K. D.

Buildings, 14(11), 3588. 2024

https://doi.org/10.3390/buildings14113588
Seismic Behavior of Resilient Reinforced Concrete Columns with Ultra-High-Strength Rebars Under Strong Earthquake-Induced Multiple Reversed Cyclic Loading

Yue Wen*, Gaochuang Cai**, Prafulla Bahadur Malla, Hayato Kikuchi and Cheng Xie *Internship student (2022.01.17-2022.02.18 [online]) in IROAST Research Internship Program **Host professor at Kumamoto University

Buildings 2024, 14(12), 3747

https://doi.org/10.3390/buildings14123747
Experimental and Transformer-Based Study on Seismic Behavior and Plastic Hinge Length of RC Columns Reinforced with End-Fixed Ultra-High Strength Rebars

Yue Wen*, Gaochuang Cai**, and Prafulla Malla
*Internship student (2022.01.17-2022.02.18 [online]) in IROAST Research Internship Program
**Host professor at Kumamoto University

Buildings 2024, 14(10), 3046, 2024

https://doi.org/10.3390/buildings14103046
Shear behavior of reinforced concrete beams with high-strength reinforcements after high temperatures

Jun ZHAO, Xiangsheng DENG**, Gaochuang CAI**, Amir SI LARBI***, Xiaotong LIU
*Internship student (2023.11.15～2024.1.31(onsite: 2023.12.4-2024.1.31)) in IROAST Research Internship Program **Host professor at Kumamoto University ***IROAST Visiting Prof.

Construction and Building Materials, 447, 138071 (2024)

https://doi.org/10.1016/j.conbuildmat.2024.138071
The influence of high temperature exposure on the tensile and cracking behavior of crimped-textile reinforced mortar composites (TRMs)

Khan Junaid, Nonna Algourdin, Zyed Mesticou, Gaochuang Cai, Amir Si Larbi

Construction and Building Materials, 439, 16, 137350 (2024)

https://doi.org/10.1016/j.conbuildmat.2024.137350
Application of supervised learning for classification of cracking and non-cracking major damage in TRMs based on AE features

Khan Junaid, Amir Si Larbi, Nonna Algourdin, Zyed Mesticou, Dimitrios Aggelis, Gaochuang Cai

Construction and Building Materials, 437, 137079 (2024)

https://doi.org/10.1016/j.conbuildmat.2024.137079
Effect of axial load and shear span on seismic performance of CFT columns reinforced with end-fixed ultra-high strength rebars

Gaochuang Cai**, Yue Wen*, Malla Prafulla, Takashi Fujinaga and Amir Si Larbi
*Internship student (2022.01.17-2022.02.18 [online]) in IROAST Research Internship Program
**Host professor at Kumamoto University

Bulletin of Earthquake Engineering, 22(9), 4515–4543, 2024

https://doi.org/10.1007/s10518-024-01939-4
Tensile and cracking behaviour of crimped textile reinforced mortar (TRM) based on digital image correlation

Junaid, K.*, Zyed, M., Nonna, A., Cai, G, Si Larbi, A.

Construction and Building Materials, 417, 135321. (2024).

https://doi.org/10.1016/j.conbuildmat.2024.135321
Flexural stiffness of RC beams with high-strength steel bars after exposure to elevated temperatures

Jun Zhao, Yibo Jiang****, Gaochuang Cai**, Xiangsheng Deng*, Amir Si Larbi*** *Internship student (2023.11.15～2024.1.31(onsite: 2023.12.4-2024.1.31)) in IROAST Research Internship Program **Host professor at Kumamoto University ***IROAST Visiting Prof. **** Kumamoto University Guest Scholar (2023.02/01-2024/01/31)

Structural Concrete, 25(5), 3081-3102
*Added the volume number on Feb. 4, 2025

https://doi.org/10.1002/suco.202300934

2023

Column Link Behavior in Eccentrically Braced Composite 3-Dimensional Frames

Celine Reena G. Beulah Gnana Ananthi Gurupatham and Konstantinos Daniel Tsavdaridis

Buildings, 13(12), 2970 (2023)

https://doi.org/10.3390/buildings13122970
Seismic Behavior of Circular Concrete Columns Reinforced by Low Bond Ultrahigh Strength Rebars

Y. P. Sun, G. C. Cai

Journal of Structural Engineering, 149, 9, 04023126. (2023)

https://doi.org/10.1061/JSENDH.STENG-10296
Seismic behavior and simplified hysteretic model of precast concrete wall panels with bolted connections under cyclic loading

Fuchao Zhao*, Feng Xiong, Gaochuang Cai**, Qi Ge, A. Si Larbi
*Internship student (2022.01.20-2022.02.25 [online]) in IROAST Research Internship Program
**Host professor at Kumamoto University

Engineering Structures, 292, 1, 116562 (2023)

https://doi.org/10.1016/j.engstruct.2023.116562
Bond performance of carbon fiber reinforced polymer rebars in ultra-high-performance concrete

Haitang Zhu, Yunjian He*, Gaochuang Cai**, Shengzhao Cheng, Yin Zhang, Amir Si Larbi
*Internship student (2022.01.20-2022.02.25 [online]) in IROAST Research Internship Program
**Host professor at Kumamoto University, **Corresponding author

Construction and Building Materials, 387, 131646 (2023)

https://doi.org/10.1016/j.conbuildmat.2023.131646
Cyclic behavior of RCFT columns with large D/t ratio steel tubes: Effect of reinforcement arrangement

Gaochuang Cai**, T. Fujinaga, A. Si Larbi, Y. Wen* and P. B. Malla *Internship student (2022.01.17-2022.02.18 [online]) in IROAST Research Internship Program **Host professor at Kumamoto University

Bulletin of Earthquake Engineering, 21(9), 4565–4588 (2023).

https://doi.org/10.1007/s10518-023-01696-w
Seismic behavior of square concrete columns confined by FRP-steel composite tube

Yanlei Wang, Gaochuang Cai

The Journal of Building Engineering, 65, 105754

https://doi.org/10.1016/j.jobe.2022.105754
Damage control of the masonry infills in RC frames under cyclic loads: a full-scale test study and numerical analyses

Qiwang Su, Gaochuang Cai, Meree Hani, Amir Si Larbi, Konstantinos Daniel Tsavdaridis

Bulletin of Earthquake Engineering, 21(2), 1017-1045 (2023)

https://doi.org/10.1007/s10518-022-01565-y

*Added volume number on April 14, 2023
Performance and numerical modelling of full-scale demountable bolted PC wall panels subjected to cyclic loading

Fuchao Zhao*, Feng Xiong, Gaochuang Cai**, Huiqun Yan, Ye Liu, Amir Si Larbi *IROAST Young Internship Researcher (2022.01.17-2022.02.25/online) in IROAST Research Internship Program **Host professor at Kumamoto University

Journal of Building Engineering, 63, Part A, 105556 (2023)

https://doi.org/10.1016/j.jobe.2022.105556

2022

Performance and modeling of FRP-steel dually confined reinforced concrete under cyclic axial loading

Guipeng Chen, Yananlei Wang, Gaochuang Cai, Amir Si Larbi, Baolin Wan, Qingduo Hao

Composite Structures, 300, 116076

https://doi.org/10.1016/j.compstruct.2022.116076

Publications

Grants

Seismic Performance and AI-based Evaluation Method of SRC Rectangular Columns Subjected to Multiple Repeated Cyclic Loads
Research Grant Ohata Foundation, 2022.10-2023.9

JST Sakura Science Exchange Program, Advanced technology and risk analysis of structures under extreme loads or environments (極端な負荷または環境下にある構造物の高度なテクノロジーとリスク分析), 2024.1.22-2024.1.28

Activities

JST Sakura Science Exchange Program:2024.1.22-2024.1.28 (→NEWS)
Advanced technology and risk analysis of structures under extreme loads or environments (極端な負荷または環境下にある構造物の高度なテクノロジーとリスク分析)

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Cluster of World-leading Researchers