应用FPB不同矢跨比柱支承单层球面网壳结构力学性能研究  

Research on Mechanical Performances of Different Rise-span Ratio Column Supporting Single-layer Spherical Reticulated Domes with FPB

作　　者：王乔炎 孔德文 佘婷婷[1] 谢国庆 任虎 蔡婷 WANG Qiaoyan;KONG Dewen;SHE Tingting;XIE Guoqing;REN Hu;CAI Ting(College of Civil Engineering,Guizhou University,Guiyang,Guizhou 550025,China;Key Lab of Structural Engineering in Guizhou,Guizhou University,Guizhou,Guiyang 550025,China;School of Information Engineering,Xizang Minzu University,Xianyang,Shaanxi 712082,China)

机构地区：[1]贵州大学土木工程学院,贵州贵阳550025 [2]贵州省结构工程省级重点实验室,贵州大学,贵州贵阳550025 [3]西藏民族大学信息工程学院,陕西咸阳712082

出　　处：《施工技术》2019年第16期93-97,共5页Construction Technology

基　　金：国家自然科学基金青年科学基金(11602061);贵州省土木工程一流学科(QYNYL[2017]0013);贵州省科技计划基金项目(黔科合支撑[2018]2816和黔科合LH字[2017]7238);贵州大学培育计划项目(黔科合平台人才[2017]5788-48);西藏自治区科技厅自然科学基金(XZ2017ZRG-63)

摘　　要：针对5种不同矢跨比(1/3,1/4,1/5,1/6和1/7)柱支承单层球面网壳结构,开展了摩擦摆支座网壳结构力学性能方面的研究。静力分析方面,从顶点位移、杆件内力及极限荷载3个方面进行分析,分析结果表明,应用摩擦摆支座后,不同矢跨比网壳结构的静力力学性能均被减弱。动力分析方面,从杆件动应力、节点水平相对位移和加速度3个角度探讨了应用摩擦摆支座不同矢跨比网壳结构的抗震性能,结果显示,应用摩擦摆支座后,不同矢跨比结构均有良好的减震效果,且随着地震动强度的增加,减震效果增大;不同矢跨比网壳结构的减震效果之间相差在20%以内。Based on column supporting single-layer reticulated domes with five different rise-span ratios including 1 /3,1 /4,1 /5,1 /6 and 1 /7,the mechanical performance of these structures with friction pendulum bearings ( FPB) was studied in this paper. The structural static performance was analyzed through vertex displacement,internal force and ultimate load. The results showed static mechanical performance of these structures with five different rise - span ratios was weakened by using FPBs. In addition,the dynamic performance of these structures was discussed through three aspects including dynamic stresses of members,horizontal relative displacements and accelerations of nodes. The results showed that the structures with different rise-span ratios had good vibration reduction effect by applying FPBs,and this effect increased with the increase of seismic intensity. The difference between the vibration reduction effects of the domes with different span-ratios was less than 20%.

关 键 词：单层球面网壳结构 矢跨比 摩擦摆支座 力学性能 

分 类 号：TU311.3[建筑科学—结构工程]