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高层建筑抗震墙非线性分析的扩展铁木辛哥分层梁单元
引用本文:孙景江,江近仁.高层建筑抗震墙非线性分析的扩展铁木辛哥分层梁单元[J].地震工程与工程振动,2001,21(2):78-83.
作者姓名:孙景江  江近仁
作者单位:中国地震局工程力学研究所,
基金项目:地震科学联合基金资助项目(95—07—443)
摘    要:在已证明三坚直线单元(Three-vertical-line element)和多竖直线单元(Multipli-vertical-line element)本质上为铁木辛哥分层梁单元(这里称之为扩展铁木辛哥分层梁单元)的基础上,本文进一步讨论这一单元模型。首先推导了单元刚度矩阵和内力表达式;然后讨论单元分别模拟轴向-弯曲和剪切滞变特性的理论根据;其次,根据试验结果,改进了Kabeyasawa提出的层位-压滞变模型;最后给出计算实例。

关 键 词:有限单元模型  抗震墙  地震反应  高层建筑  刚度矩阵  扩展铁梓哥分层梁单元
文章编号:1000-1301(2001)02-0078-06

Extended Timoshenko layered beam element for nonlinear analysis of RC high-rise buildings with structural walls
SUN Jing-jiang,JIANG Jin-ren.Extended Timoshenko layered beam element for nonlinear analysis of RC high-rise buildings with structural walls[J].Earthquake Engineering and Engineering Vibration,2001,21(2):78-83.
Authors:SUN Jing-jiang  JIANG Jin-ren
Abstract:It has been shown that three-vertical-line element and multiple-vertical-line element are essentially a kind of Timoshenko layered beam element (here it is called extended Timoshenko layered beam element). In this paper the element model is discussed further. First, the element stiffness matrix and inner force formula are presented, then the performance of modeling the axial-bending and shear is discussed; next the improvement suggestions to Kabeyasawa's tension-compress hysteretic curve are proposed, based on experiment results; finally, two analysis examples show the effectiveness of the model.
Keywords:nonlinear  finite element model  structural wall  earthquake response
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