地震工程学报2017，Vol.39Issue(1)：52-57,6.DOI:10.3969/j.issn.1000-0844.2017.01.0052
大震下村镇建筑砌体结构的抗震性能数值分析
Numerical Analysis of Seismic behaviors of Masonry Structures in Village Buildings during Strong Earthquakes
摘要
Abstract
In order to investigate the dynamic responses and damage distribution of low layers of masonry structures in village buildings during strong earthquakes,finite element models of ma-sonry structures are established on the ABAQUS software program based on the survey and the material test of rural buildings;the analysis considered the different details of seismic design.The vibration characteristics,displacement response,and the damage configuration of each model are then compared based on the results of dynamic characteristic analysis and elastic-plastic time-his-tory analysis.Research results show that the vibration regularity and model are not changed bythe reasonable setting details of seismic design in low layers of masonry structures.Nevertheless, the structural column is involved in the anti-lateral work to some extent,such that the basic peri-od of the structure is slightly decreased.The dynamic displacement responses of structures are ef-ficiently restricted by the column in the elastic period,and the energy dissipation capacity of ma-sonry structures can be improved in the plastic period.However,the imbalance between longitu-dinal and lateral stiffness could be exacerbated once the structure stiffness is degraded.When a structure comes up against a major earthquake,the seismic performance can be improved effec-tively by the structural column and ring beam;for example,the development of cracks in the bearing cross-wall can be inhibited,and the roof damage can suppress the bearing failure,thereby weakening the torsion effect.关键词
村镇建筑/砌体结构/抗震性能/数值模拟/弹塑性/损伤Key words
village and town buildings/masonry structure/seismic behavior/numerical simula-tion/elastoplastic/damage分类
建筑与水利引用本文复制引用
华建兵,吴韬,蒋敏,易苗苗,王艳华..大震下村镇建筑砌体结构的抗震性能数值分析[J].地震工程学报,2017,39(1):52-57,6.基金项目
国家自然科学基金青年科学基金项目(51408179) （51408179）
安徽省高等学校优秀青年人才基金重点项目(2013SQRL098ZD) （2013SQRL098ZD）
安徽省高等学校自然科学研究基金重点项目(KJ2014A099) （KJ2014A099）
