洞庭湖区空斗墙建筑抗震性能实测及数值模拟  

Field test and numerical simulations of seismic performance of rowlock wall buildins in Dongting Lake area

作　　者：王海东[1,2] 文学章[2] 尚守平[2] 何放龙[2] 刘冬柏 

机构地区：[1]湖南大学建筑安全与节能教育部重点实验室,湖南长沙410082 [2]湖南大学土木工程学院,湖南长沙410082 [3]湖南省建筑设计院,湖南长沙410000

出　　处：《自然灾害学报》2011年第5期18-23,共6页Journal of Natural Disasters

基　　金：国家自然科学基金(50808078);湖南省科技计划重点项目(06SK4057);湖南省建设科技计划项目(07-22)

摘　　要：通过现场实测及数值模拟对洞庭湖区典型空斗墙建筑的抗震性能进行了研究。研究结果表明:数值模型能很好地反映实际结构的动力特性。时程分析结果表明,在保证材料强度的情况下,洞庭湖区典型空斗墙建筑可满足我国抗震规范7度(0.10g)多遇地震的设防要求,其中柔性楼屋盖空斗墙建筑更是可基本达到7度(0.15g)多遇地震设防要求;柔性楼屋盖空斗墙建筑的抗震抗剪承载力比半刚性楼屋盖空斗墙建筑的要高23.1%;眠砌构造柱可提高半刚性楼屋盖空斗墙建筑抗震抗剪承载力5%。In this paper, the seismic performance of typical rowlock wall building in Dongting Lake area was studied by field test and numerical simulations. The results show that the dynamic characteristics of numerical model are well agreeable with those of the actual structure, so the results of numerical simulations can reflect really the seis- mic performance of actual structure. The seismic performance of typical rowlock wall building in Dongting Lake area can satisfy with the demand of seismic fortification intensity Ⅶ （0.10g） for frequent earthquake, furthermore the seismic performance of typical rowlock wall building with flexible floors and roof can basically meet requirement for seismic fortification intensity Ⅶ （0.15g）for frequent earthquake. The seismic shear of the typical rowlock wall building with flexible floors and roof is 23.1% bigger than that of building with semi - rigid floors and roof. Consid- ering the brick constructional columns, the seismic shear of the typical rowlock wall building with semi-rigid floors and roof can be improved to 105%.

关 键 词：典型空斗墙建筑 抗震性能 数值模拟 现场实测 动力特性 

分 类 号：P642.23[天文地球—工程地质学]