索杆张力结构的动力特性和非线性地震响应分析

英文篇名：Dynamic characteristics and nonlinear seismic responses of cable-strut tensile structures
中文刊名：地震工程与工程振动
英文刊名：Journal of Earthquake Engineering and Engineering Vibration
作者：卢成江 ; 谢礼立 ; 赵洪斌 ; 吴知丰
英文作者：LU Chengjiang1 ; 2 ; XIE Lili2 ; 3 ; ZHAO Hongbin2 ; WU Zhifeng2(1.School of Architecture and Civil Engineering ; Technology and Science University of Harbin ; Harbin 150080 ; China ; 2.School of Civil Engineering ; Harbin Institute of Technology ; Harbin 150090 ; China ; 3.Institute of Engineering Mechanics ; China Earthquake Administration ; Harbin 150080 ; China)
中文关键词：索杆张力结构 ; 非线性 ; 预应力 ; 动力响应
英文关键词：cable-strut tensile structure ; nonlinearity ; prestress ; dynamic response
出版日期：2008-12-15
机构：哈尔滨理工大学建筑工程学院;哈尔滨工业大学土木工程学院;中国地震局工程力学研究所;
年：2008
期：06
出版单位：地震工程与工程振动

摘要

索杆张力结构是以拉索和压杆为基本单元构成的自平衡体系,并通过预应力提供结构刚度的一类新型空间结构。通过修正的拉格朗日方程推导了索杆张力结构的增量运动方程,且采用Ne-wmark常平均加速度法求解方程,在每个时间步内应用了修正的牛顿拉斐逊法。应用此方法对索杆张力柱面网壳的自振特性及其在地震作用下的非线性动力响应进行了数值模拟分析。
Cable-strut tensile structure is a new spatial structural system.The structural elements are composed of strut(compression) and cable(tension) to achieve a "self-stressed equilibrium" state and to be stiffened by the introduction of prestress.The incremental equation of motion is written with respect to the system's configuration using an updated Lagrangian equation and integrated in time by Newmark constant-average acceleration method.A modified Newton-Raphson iterative scheme is then adopted to insure the equilibrium within each time step.This procedure is used for the study of the non-linear dynamic response of cable-strut tensile barrel vault shell to earthquake.

引文

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