高层住宅新型“成束筒”空间钢网格盒式结构扭转性能对比分析  

A Torsion Performance Comparison Analysis of High-rise Residential New "Bundled Tube" Space Steel Grid Cassette Structure

作　　者：杨志勇[1] 马克俭[1] 张瑞鹏[1] 华建坤 张震[2] 常压 邵建力[1] 

机构地区：[1]贵州大学空间结构研究中心,贵州贵阳550003 [2]贵州大学土木工程学院,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2015年第4期79-85,91,共8页Journal of Guizhou University:Natural Sciences

基　　金："十二五"国家科技支撑计划--大型建筑钢-混凝土组合结构体系关键技术研究(2011BAJ09B01-01);贵州大学研究生创新基金资助(校研理工2015025)

摘　　要：平面不对称或不规则的结构在地震作用时极易发生扭转脆性破坏,甚至导致结构整体倒塌事故。在抗震设计中做好不规则结构的抗扭设计,对提高结构的抗震安全性是十分重要的。本文以拟建工程为例,采用Midas-Building分析软件对结构模型进行弹性振型分解反应谱分析,通过考察新型"成束筒"空间钢网格盒式结构和常规框架-核心筒结构的两个方向的结构层间位移比、层位移比、层间最大位移、楼层平均位移、层间位移角、层间扭转角等数据的变化规律,并相互比较得出新型"成束筒"空间钢网格盒式结构具有更大的抗扭刚度和更好的抗扭性能。A brittle failure of planar asymmetric or irregular structure is happened in the earthquake effect, and even leads to the overall collapse of a structure. In the seismic design, torsional design of asymmetric structure is very important to improve the structure of the seismic safety. A proposed project was taken as an example, the structure model was analyzed with elastic vibration mode decomposition response spectrum by the software of Mi- das-Building, a data changing rule of the interlayer displacement ratio, displacement ratio, layer between the maximum displacement and displacement of the average floor, interlayer displacement angle, torsion angle be- tween the layers in either directions of the new ＂ bundle tube＂ space between steel grid cassette structure and general framework of the structure were investigated, and the new ＂bundle tube＂ space steel grid cassette struc- ture has better torsion performance by comparing the structures.

关 键 词：不规则 脆性破坏 振型分解反应谱 层间位移比 层间扭转角 

分 类 号：TU973[建筑科学—结构工程]