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基于弹塑性模型的碰撞力响应谱分析

发表时间:2009-09-15  浏览量:1599  下载量:696
全部作者: 张雪坤,周又和
作者单位: 兰州大学土木工程与力学学院
摘 要: 采用弹塑性碰撞模型,将结构简化为单自由度系统,给出了简谐激励下不同结构参数的最大碰撞力响应谱。响应谱表明:结构参数,如固有震动频率、阻尼、结构间的间隔距离、地面运动引起的时间滞后等,都会对碰撞力的峰值产生影响。根据碰撞力响应谱,可以选择对应碰撞力峰值较小的结构参数,以此为据设计建筑的材料和间隔距离等,达到减小结构破坏的目的。
关 键 词: 固体力学;碰撞力响应谱;非线性弹塑性碰撞模型;碰撞力峰值
Title: Collision force response spectra analysis based on nonlinear elastoplastic model
Author: ZHANG Xuekun, ZHOU Youhe
Organization: School of Civil Engineering and Mechanics, Lanzhou University
Abstract: In this paper, the collision force response spectra for simple harmonic excitation are plotted by modeling structures as single degree of freedom systems using the nonlinear elastoplastic collision model. The spectra indicated that the structural parameters, such as natural frequencies of bodies, damping, distance among structures and time lag due to ground motion, may affect the peak value of collision force. According to the spectra, material and construction with structural parameters corresponding to lower peak values can be selected to design a building, so as to decrease structural damage.
Key words: solid mechanics; collision force response spectra; nonlinear elastoplastic collision model; peak value of collision force
发表期数: 2009年9月第17期
引用格式: 张雪坤,周又和. 基于弹塑性模型的碰撞力响应谱分析[J]. 中国科技论文在线精品论文,2009,2(17):1778-1785.
 
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