Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)

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The Impact of Diaphragm Stiffness on the Wind-induced Lateral Force Resistance of Concrete Modular Buildings

Authors
Jing Li1, *, Yuyang Jiang1
1School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510641, China
*Corresponding author. Email: cvjingli@scut.edu.cn
Corresponding Author
Jing Li
Available Online 19 May 2025.
DOI
10.2991/978-94-6463-728-1_18How to use a DOI?
Keywords
concrete modular building; diaphragm stiffness; horizontal connection; lateral force resistance
Abstract

The diaphragm’s continuous integrity is vital to the lateral resistance capacity of buildings. However, there is a paucity of research concerning the impact of diaphragm stiffness in concrete modular structures, impeding their broader adoption in high-rise construction. This study employs ETABS to investigate the role of diaphragm stiffness on wind-induced lateral force resistance in concrete modular buildings without a core tube (NCS). Findings reveal that in NCS configurations, the in-plane axial and out-of-plane normal stiffnesses of horizontal connections exert a more substantial influence on the structure’s lateral force resistance compared to the in-plane shear stiffness. Notably, any decrease in normal stiffness can result in pronounced structural displacements that are non-negligible. Analysis of the periods and lateral displacements suggests that a diaphragm stiffness coefficient not exceeding 0.5 is imperative for ensuring optimal lateral force resistance. All structures examined herein, featuring diverse diaphragm stiffness configurations, comply with the specified lateral displacement limits.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)
Series
Advances in Engineering Research
Publication Date
19 May 2025
ISBN
978-94-6463-728-1
ISSN
2352-5401
DOI
10.2991/978-94-6463-728-1_18How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Jing Li
AU  - Yuyang Jiang
PY  - 2025
DA  - 2025/05/19
TI  - The Impact of Diaphragm Stiffness on the Wind-induced Lateral Force Resistance of Concrete Modular Buildings
BT  - Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)
PB  - Atlantis Press
SP  - 155
EP  - 166
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-728-1_18
DO  - 10.2991/978-94-6463-728-1_18
ID  - Li2025
ER  -