双层圆柱面网壳的抗震性能研究
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摘要
采用三维地震理论和振型分解反应谱法，对目前2种常用的网格形式的双层圆柱面网壳分析了几十个具体算例，找出它的动力特性变化规律和主要影响参数，用回归分析方法建立基频近似计算公式，提出了地震反应主方向判别原则
In this paper, more than dozens of double - layer cylindrical latticed shells with two different network structures are analyzed by using three - dimensional space earthquake theory and methed of vibration moderesolution reaction spectrum. The variahon pattern of the bynamic characteristics and the principal influencing factors are determined. The regression analgtical method is used to establish the approximate computation formla for the basic frequencies, and the rule for determining the principal direction of seismic reaction is proposed.
In this paper, more than dozens of double - layer cylindrical latticed shells with two different network structures are analyzed by using three - dimensional space earthquake theory and methed of vibration moderesolution reaction spectrum. The variahon pattern of the bynamic characteristics and the principal influencing factors are determined. The regression analgtical method is used to establish the approximate computation formla for the basic frequencies, and the rule for determining the principal direction of seismic reaction is proposed.
引文
1陈扬骥,徐运源.平板型空间网架抗震分析.同济大学学报,1983(1):44-57
2沈祖炎,严慧,马克俭,等。空间网架结构,贵阳:贵州人民出版社,1987
3刘洪杰,朱继澄,肖炽.单层球面网壳地震反应分析研究.见:董石麟主编,新型空间结构论文集。杭州:浙江大学出版社, 1994, 263~271
4规程制组.网架结构设计与施工、规程应用指南。北京:中国建筑工业出版社,1995
5李桂青.抗震结构计算理论和方法.北京:地震出版社,1986
2沈祖炎,严慧,马克俭,等。空间网架结构,贵阳:贵州人民出版社,1987
3刘洪杰,朱继澄,肖炽.单层球面网壳地震反应分析研究.见:董石麟主编,新型空间结构论文集。杭州:浙江大学出版社, 1994, 263~271
4规程制组.网架结构设计与施工、规程应用指南。北京:中国建筑工业出版社,1995
5李桂青.抗震结构计算理论和方法.北京:地震出版社,1986
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