行波效应下混凝土V形折板网壳地震响应分析  

Analysis of seismic response of concrete bidirectional folded-plate reticulated shell structure under traveling wave effect

作　　者：姜腾钊 张华刚[1,2] 魏威 马克俭 JIANG Teng-zhao;ZHANG Hua-gang;WEI Wei;MA Ke-jian(Space Structure Research Center,Guizhou University,Guiyang 550003,China;Guizhou Key Laboratory for Structure Engineering,Guiyang 550025,China;Guizhou Construction Supervision&Consulting Co.,Ltd.,Guiyang 550081,China)

机构地区：[1]贵州大学空间结构研究中心,贵州贵阳550003 [2]贵州省结构工程重点实验室,贵州贵阳550025 [3]贵州建工监理咨询有限公司,贵州贵阳550081

出　　处：《广西大学学报（自然科学版）》2021年第3期517-525,共9页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51568012);贵州省科学技术基金资助项目(黔科合字[2008]2112号)。

摘　　要：为了研究行波效应对混凝土V形折板网壳的影响,采用有限元动力时程法,分别计算了一致地震输入和考虑行波效应的多点地震输入下结构的地震响应,考察了两者之间的差异,深入分析了结构在行波激励下的地震反应规律。结果表明:行波效应对结构的地震响应影响较为显著;行波效应的影响集中在支座附近以及纵向脊线拱与横向脊线拱的交汇位置;行波效应对结构动力响应的影响不单一,对部分区域有利,对部分区域不利;三向地震激励下,行波效应对结构的影响与在X向地震激励下的情况基本相同,但多数构件在三向地震激励下受行波效应影响更为显著。In order to investigate the influence of traveling wave effect on concrete bidirectional folded-plate reticulated shell,the seismic response of the structure under uniform excitation and multi-support excitation,respectively,are calculated by means of the transient dynamic finite element method,and the differences are discussed.In-depth analysis is made for the rules of seismic response of the structure under multi-support excitations.The results show that the traveling wave effect on the seismic response of the structure is significant,which is concentrated on the vicinity of the support as well as the intersection of the main arch and ridge.The traveling wave effect on the dynamic response of the structure is not unique,which is beneficial to some regions,adverse to others.The effect of traveling wave effect on structure under the three-direction and the x-direction seismic excitation are almost identical,but most members are affected more pronouncedly by the traveling wave effect under three-direction earthquake.

关 键 词：折板拱网壳 非一致输入 行波效应 地震响应 

分 类 号：TU311.3[建筑科学—结构工程]