柏林寺塔抗震性能非线性有限元分析

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基金项目:

河北省教育厅资助项目(2005339)

NONLINEAR FINITE ELEMENT ANALYSIS OF SEISMIC PERFORMANCE OF BAILIN TEMPLE PAGODA

1.
1. Department of Civil Engineering,Tianjin University,Tianjin 300072,China;
2.
2. Hebei Institute of Architecture and Civil Engineering,Zhangjiakou 075024,China;
3.
3. Tianjin Institute of Urban Construction,Tianjin 300384,China

摘要: 采用有限元软件ANSYS对柏林寺塔进行地震反应分析。有限元模型采用了Solid 65单元和整体连续体模型,由多线性随动强化模型(MKIN)来定义砌体的单轴应力应变曲线。研究发现,水平地震作用下,塔结构在下部会出现拉应力区域,更易开裂、破坏,而且强烈地震的鞭梢效应会导致塔刹破坏。最后提出对塔体抗震加固时可采用塔体加箍、碳纤维布加固等措施。
- 柏林寺塔 /
- 抗震 /
- 非线性 /
- 有限元
Abstract: The seismic response of Bailin Temple Pagoda was investigated by ANSYS software in this paper.The Solid 65 element and integral continuum model were applied,and stress-strain relationship of masonry structures was defined by the theory of multilinear kinematic hardening(MKIN) while creating the model.The result indicated that the lower floor of pagoda was prone to bring cracks and destroyed owing to larger tension stress,and top of pagoda was destroyed easily owing to excessive displacement.Finally reinforced measures were proposed with the hoop steel or carbon cloth.
- Bailin Temple Pagoda /
- aseismic /
- nonlinear /
- finite element analysis