Numerical Analysis on Lateral Performance of Modular Structures Based on a Sparse-Component Frame Filled with Two Stories of Modules

Xu Zhong; Hao Chen; Mingliang Zhang; Xiaoxiang Wang; Tuo Shi; Zhicheng Gao; Yanran Pan

doi:10.13206/j.gjgS24080602

Volume 40 Issue 5

May 2025

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Article Navigation > STEEL CONSTRUCTION(Chinese & English) > 2025 > 40(5): 33-44

Xu Zhong, Hao Chen, Mingliang Zhang, Xiaoxiang Wang, Tuo Shi, Zhicheng Gao, Yanran Pan. Numerical Analysis on Lateral Performance of Modular Structures Based on a Sparse-Component Frame Filled with Two Stories of Modules[J]. STEEL CONSTRUCTION(Chinese & English), 2025, 40(5): 33-44. doi: 10.13206/j.gjgS24080602

Citation:

Xu Zhong, Hao Chen, Mingliang Zhang, Xiaoxiang Wang, Tuo Shi, Zhicheng Gao, Yanran Pan. Numerical Analysis on Lateral Performance of Modular Structures Based on a Sparse-Component Frame Filled with Two Stories of Modules[J]. STEEL CONSTRUCTION(Chinese & English), 2025, 40(5): 33-44. doi: 10.13206/j.gjgS24080602

Citation:

Xu Zhong, Hao Chen, Mingliang Zhang, Xiaoxiang Wang, Tuo Shi, Zhicheng Gao, Yanran Pan. Numerical Analysis on Lateral Performance of Modular Structures Based on a Sparse-Component Frame Filled with Two Stories of Modules[J]. STEEL CONSTRUCTION(Chinese & English), 2025, 40(5): 33-44. doi: 10.13206/j.gjgS24080602

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Numerical Analysis on Lateral Performance of Modular Structures Based on a Sparse-Component Frame Filled with Two Stories of Modules

doi: 10.13206/j.gjgS24080602

1. Hunan Construction Investment Group Co., Ltd., Changsha 410004, China;
2. School of Civil Engineering, Central South University, Changsha 410075, China;
3. Hunan Institute of Building Construction Technology, Changsha 410004, China;
4. Zhongxiang Intelligent Construction Co., Ltd., Changsha 410015, China

Received Date: 2024-08-06
Available Online: 2025-07-09

Abstract

Abstract

Modular integrated construction（MIC） is an innovative prefabricated building， but current modular structural systems fail to satisfy the requirements of high-rise buildings with large storey height and long span. To improve the applicable height and the building performance， a new structure based on a sparse-component frame （SCF） filled with two stories of modules is proposed， however， traditional design methods will be adverse to steel reduction and cost efficiency. Therefore， the lateral performance of the global structure filled by modules remains to be investigated， and the module stiffness contribution can be obtained to improve the design economy for the new MIC.In this paper， a numerical analysis on two-storey stacked modules， SCF， and the frame-module structure combing the modules and SCF was conducted using nonlinear FE software（ABAQUS）， the numerical results were compared to differentiate the intrinsic stiffness of stacked modules from their real stiffness contribution to the frame-module structure. Moreover， the effects of the member section sizes of modules and frames， the module-to-frame connection（M2FC） stiffness， and the row number of modules were studied；to illustrate the specific influencing factors， the lateral stiffness augmented factor α， module stiffness correction factor β_M， M2FC-related correction factor β_RF， and the space-frame-related correction factor β_SP were all proposed.The results indicated that the contribution of modules to the overall lateral resistance was non-negligible（i.e.， α>0）. However， the real lateral stiffness contribution of stacked modules was slightly lower than the intrinsic values when the M2FC was designed with bolted connections， where the factor β_M averaged 0.937 for the structure filled with one single row of modules； when the M2FC turned to welded type， the module stiffness contribution increased， with the factor β_RF ranging from 1.340 to 1.352. Besides， the space frame effect should be considered to reduce the stiffness contribution for modules outside the loading plane of the SCF， with the factor β_SP ranging from 0.799 to 0.907.
- modular integrated construction,
- sparse-component frame,
- lateral performance,
- numerical simulation,
- module-to-frame connections

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References(21)

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