Corotational Model for Cyclic Analysis of Light-Frame Wood Shear Walls and Diaphragms
Corotational Model for Cyclic Analysis of Light-Frame Wood Shear Walls and Diaphragms
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DOI：
10.1061/(asce)st.1943-541x.0000595
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发表时间：
2013-08
期刊：
影响因子：
--
通讯作者：
W. Pang;S. Shirazi
中科院分区：
文献类型：
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作者：
W. Pang;S. Shirazi
摘要本文介绍了一种新的二维剪力墙和隔板模型，该模型是地震工程模拟网络 (NEES) 项目的一部分，题为“NEES-Soft：软层木框架建筑的地震风险降低”。加州地区大部分较旧的多层建筑都存在缺陷，导致它们的第一层在地震时很容易倒塌。这种缺陷被称为软故事。本文提出的新模型是使用共旋转公式开发的，这使得它适合模拟大位移下木剪力墙的侧摆倒塌以及估计地板隔板的面内刚度。为了实现高计算效率，使用节点压缩技术从模型的全局 DOF 中消除与钉子连接相关的自由度 (DOF)。为了验证新模型的有效性，该模型被编码成计算机程序并......
AbstractThis paper presents a new two-dimensional shear-wall and diaphragm model developed as part of a Network for Earthquake Engineering Simulation (NEES) Project entitled NEES-Soft: Seismic Risk Reduction for Soft-Story Woodframe Buildings. A large portion of the older multistory buildings in the California region were constructed with a deficiency that makes them vulnerable to collapse in the first story during earthquakes. This deficiency is referred to as soft-story. The new model presented in this paper was developed using a corotational formulation, which makes it suitable for modeling the side-sway collapse of wood shear walls under large displacement as well as estimating the in-plane stiffness of floor diaphragms. To achieve high computational efficiency, a nodal condensation technique is used to eliminate the degrees of freedom (DOFs) associated with the nail connections from the global DOFs of the model. To verify the validity of the new model, the model was coded into a computer program and ...