既有砖砌体结构容许变形值及抗震性能评估  

Evaluation of Seismic Performance and Tolerant Deformation on Existing Brick Masonry Buildings

作　　者：孙艳丽[1] 杨海[2] 姜绍飞[3] 

机构地区：[1]沈阳建筑大学管理学院,辽宁沈阳110168 [2]同济大学建筑设计研究院(集团)有限公司南昌分院,江西南昌330077 [3]福州大学土木工程学院,福建福州350108

出　　处：《沈阳建筑大学学报（自然科学版）》2013年第5期861-867,共7页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51078065);福建省杰出青年基金项目(2009 J06027)

摘　　要：目的为了更好地评价我国带圈梁构造柱砖砌体结构的抗震性能.方法参照国内外抗震设计标准,在总结54个砖砌体墙片抗震试验研究的基础上,给出了三种性能水平所对应的层间位移角范围,提出抗震性能评价指标和评价方法,并对一栋五层砖砌体建筑的抗震性能进行评估.结果在罕遇地震(大震)作用下,结构的最大层间位移发生在横向墙体的第三层,其值为1/387,表明结构在大震作用下结构不会发生变形过大而出现倒塌的现象,但是其层间位移角已经相当接近1/350的限值,破坏已经十分严重.结论笔者提出的允许变形值和抗震性能评估方法是可行有效的.To assess the seismic behaviors of vast brick masonry buildings with periphery beams and con- structional columns in current China, three performance levels, i. e. , nearly intact, moderate damage and seri- ous damage are given on the basis of performance-based seismic design codes at home and abroad. In view of seismic experimental data from 54 walls, the ranges of inter-story drift ratio are obtained for three different seismic performance levels. The seismic performance indices and seismic assessment method are proposed e- ventually, and a 5-story brick masonry building is evaluated by the proposed method. The results show that the maximum inter-story drift ratio with the value of 1/387 occurs at the third story of the lateral wall under large earthquake, not collapsing due to the large drift. However, the building damages seriously when the in- ter-story drift ratio is nearly to the limit value of 1/350. This implies that the allowable drift value and as- sessment method proposed by authors are applicable and effective for assessing the seismic performance of brick masonry buildings.

关 键 词：砖砌体结构 抗震性能水平 量化指标 时程分析 

分 类 号：TU398.9[建筑科学—结构工程] TU377.91