结构长度改变下双层柱面网壳多点输入影响分析  

Multi-point Input Effect Analysis of Double-layer Cylindrical Reticulated Shell under Structural Length Change

作　　者：周小龙[1] 戎泽鹏 杨雪 余洁 刘铂 刘小军 ZHOU Xiao-long;RONG Ze-peng;YANG Xue;YU Jie;LIU Bo;LIU Xiao-jun(Hebei Institute of Architecture and Civil Engineering,Zhangjiakou,Hebei 075000)

机构地区：[1]河北建筑工程学院,河北张家口075000

出　　处：《河北建筑工程学院学报》2020年第3期26-34,共9页Journal of Hebei Institute of Architecture and Civil Engineering

基　　金：河北省高等学校科学技术研究项目(Z2018203)。

摘　　要：以长度分别为90 m、45 m的两个双层柱面网壳为例,利用有限元软件ABAQUS,采用直接输入位移法,对结构在不同地震波激励方向及传播方向下多点输入与一致输入的地震响应进行对比分析,分别得出不同工况下不同位置杆件的多点输入影响规律及结构长度改变对其影响。结果表明:地震波激励与传播方向不同,多点输入效应分布各不相同。Taking two double-layer cylindrical latticed shells with lengths of 90m and 45m as examples,the direct input displacement method is used to analyze the seismic responses of structures under different excitation and propagation directions of seismic waves by using the direct input displacement method.The influence law of multi-point input and the change of structural length under different working conditions are obtained.The results show that the distribution of multi-point input effect varies with the direction of seismic wave excitation and propagation.

关 键 词：双层柱面网壳 结构长度 多点输入 直接输入位移法 影响系数 

分 类 号：TU311.3[建筑科学—结构工程]