新型索承网壳结构非线性地震反应特性和参数分析

英文篇名：Nonlinear seismic response characteristic and parametric analysis of cable-supported lattice shell structures
中文刊名：地震工程与工程振动
英文刊名：Earthquake Engineering and Engineering Vibration
作者：李永梅 ; 郑志英 ; 张毅刚
英文作者：Li Yongmei ; Zheng Zhiying ; Zhang Yigang(The College of Civil Engineering and Architecture ; Beijing University of Technology ; Beijing 100022 ; China)
中文关键词：索承网壳 ; 非线性 ; 三维地震反应 ; 参数分析
英文关键词：cable-supported lattice shell ; nonlinear ; three dimensional seismic response ; parametric analysis
出版日期：2006-12-30
机构：北京工业大学建筑工程学院,北京工业大学建筑工程学院,北京工业大学建筑工程学院北京100022,北京100022,北京100022
年：2006
期：06
出版单位：地震工程与工程振动

摘要

本文根据新型大跨空间杂交结构———索承网壳结构的受力特点,选用梁元、杆元和索元的混合有限元模型,给出了一种有效的适用于该类结构的非线性动力响应的增量、迭代有限元计算方法。以K8型索承网壳结构为研究对象,进行了时域内的三向地震作用下的非线性反应分析。计算结果表明,该结构具有良好的抗震性能。文中针对地震响应的主要影响参数,对其地震响应规律作了系统的研究,得出矢跨比和撑杆长度是抗震设计的主要控制参数等有应用价值的结论。
Based upon the force-bearing characteristics,the combined finite element model of beam elements,truss elements and cable elements is selected,and an incremental-iterative nonlinear finite element technique is developed to analyse the dynamic response of the long span hybrid spatial structure of cable-supported lattice shells.The seismic analysis is carried out by step-by-step method in the time domain with inputting the three-dimensional earthquake ground motion for a K8 type cable-supported lattice shell.The results indicate that the structure has a good seismic performance.In addition,the rules of seismic response are systematically studied by means of changing the main parameters of the structure.Finally the conclusion is drawn that the rise-span ratio and the lengths of bars are the main control parameters for seismic design.

引文

[1]李永梅,张毅刚.新型索承网壳结构静力、稳定性分析[J].空间结构,2003,9(1):25~30.
    [2]Kawaguch iM.D esign,tests and realization of‘Suspen dom e’system[J].Journal of the International Association for Shell and Spatial Struc-tures,1999,40(3):179~192.
    [3]康文江,陈志华,左晨然,等.弦支穹顶结构体系的动力性能研究[J].工业建筑增刊,2003,577~582.
    [4]崔晓强,郭彦林.弦支穹顶结构的抗震性能研究[J].地震工程与工程振动,2005,25(1):67~75.
    [5]李永梅.新型索承网壳结构体系理论和试验研究[D].北京:北京交通大学博士学位论文,2004.5.
    [6]Newmark N M.A m ethod of computation for structural dynam ic[J].ASCE,J.Engng.M ech.D iv.,1959,85:67~94.
    [7]GB50011-2001,建筑结构抗震设计规范[S].北京:中国建筑工业出版社,2001.
    [8]李永梅,张毅刚.凯威特型索承网壳结构的非线性稳定性参数分析[J].工业建筑增刊,2004,(34):416~419.