Modelling and non-linear analysis of beam-elements in reinforced concrete Vierendeel sandwich plates considering nodal stiffness domain effects

Xia Sheng; Jianchun Xiao; Hua Guo; Hanming Zhang; Cong Liu; Kejian Ma

doi:10.1590/1679-78258071

Modelling and non-linear analysis of beam-elements in reinforced concrete Vierendeel sandwich plates considering nodal stiffness domain effects

Authors

Xia Sheng Research Center of Space Structures, Guizhou University, Guiyang 550025, China. https://orcid.org/0009-0001-3192-7832
Jianchun Xiao Research Center of Space Structures, Guizhou University, Guiyang 550025, China. https://orcid.org/0000-0003-2971-6144
Hua Guo Research Center of Space Structures, Guizhou University, Guiyang 550025, China. https://orcid.org/0009-0006-8390-468X
Hanming Zhang Research Center of Space Structures, Guizhou University, Guiyang 550025, China. https://orcid.org/0000-0001-7036-2806
Cong Liu Research Center of Space Structures, Guizhou University, Guiyang 550025, China. https://orcid.org/0009-0001-7505-8376
Kejian Ma Research Center of Space Structures, Guizhou University, Guiyang 550025, China. https://orcid.org/0000-0002-3557-4616

DOI:

https://doi.org/10.1590/1679-78258071

Abstract

The results of finite element analysis of reinforced concrete Vierendeel sandwich plates (RCVSP) using beam-plate elements calculation model show a significant discrepancy with the actual results. Considering the structural characteristics of RCVSP and the calculation method of beam-elements, the assumption of the existence of nodal stiffness domain effects (NSDE) is proposed for its beam-plate elements calculation model. In order to verify this assumption, the existing experimental data of RCVSP is used to compare with the finite element analysis results of the beam-plate elements calculation model. The analysis results show that there is NSDE in the finite element analysis of RCVSP using beam-plate elements calculation model. The beam-elements calculation model FeaR1, which fully considers NSDE, can effectively restore the calculated stiffness lost. Compared with the solid-elements calculation model of RCVSP, the calculation model FeaR1 is more convenient for modeling, enhances computational efficiency, achieves the stiffness restoration rate of approximately 80%, and maintains the average error of no more than 16%.

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Published

2024-06-05

Issue

Vol. 21 No. 6 (2024)

Section

Articles

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