Effect of roof system on elasto-plastic stability and seismic performance of single-layer reticulated shells
Zhi Xudong1,2 Zhang Ting2 Li Wenliang2 Fan Feng1,2
1. Key Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, China;
2. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
Abstract：Single-layer reticulated shells under static/dynamic loads have been widely studied in the past decades. But in the traditional methods, only the structural components were considered, while the non-structural components such as roof, ceiling, partition, etc., were ignored. Roof system as a type of non-structural component, however, its stiffness is not weak and its damping under the dynamic load is large, which somehow make it play an important role in the static/dynamic analysis. Consequently, the effect of roof system on elasto-plastic stability and seismic responses were investigated in this work. Firstly, the numerical models for single-layer reticulated shell and single-layer reticulated shell with roof system considered were generated using the finite element software ABAQUS. Secondly, the arc-length method was used for the nonlinear numerical simulation of two models of single-layer reticulated shell under uniformly distributed loads. The ultimate bearing capacity of the shell with roof system considered was compared to those of the traditional methods. Finally, the dynamic time-history analysis for the single-layer reticulated shell with roof system considered was conducted under different seismic actions. The analysis results indicate that the roof system may significantly enhance the stiffness and the seismic performance of single-layer reticulated shells.
支旭东 张婷 李文亮 范峰. 屋面系统对单层球面网壳稳定性及地震响应的影响研究[J]. 土木工程学报, 2017, 50(2): 19-26.
Zhi Xudong Zhang Ting Li Wenliang Fan Feng. Effect of roof system on elasto-plastic stability and seismic performance of single-layer reticulated shells. 土木工程学报, 2017, 50(2): 19-26.
