文章摘要
杨建华,叶郁.多层砖房底部两层框架抗震变形性能分析[J].地震工程学报,2019,41(5):1141-1146,1176. YANG Jianhua,YE Yu.Seismic Deformation Behavior of a Two-story Frame at the Bottom of a Multistory Masonry Building[J].China Earthquake Engineering Journal,2019,41(5):1141-1146,1176.
多层砖房底部两层框架抗震变形性能分析
Seismic Deformation Behavior of a Two-story Frame at the Bottom of a Multistory Masonry Building
投稿时间:2018-12-09  
DOI:10.3969/j.issn.1000-0844.2019.05.1141
中文关键词: 多层砖房;底部;两层框架;抗震变形性能;有限元;计算模型;荷载
英文关键词: multistory masonry building;bottom;two-story frame;seismic deformation performance;finite element;computational model;load
基金项目:国家自然科学基金项目(31700633)
作者单位E-mail
杨建华 江苏城乡建设职业学院, 江苏 常州 213000  
叶郁 北京林业大学园林学院, 北京 100083 ehinensis@aliyun.com.cn 
摘要点击次数: 61
全文下载次数: 44
中文摘要:
      为实现多层砖房底部两层框架结构的加固,需要研究其抗震变形性能。以某底部两层框架、上部四层砖房建筑为对象,通过STRAND7有限元软件构建有限元计算模型,考虑水平荷载与垂直荷载,深入分析多层砖房底部两层框架抗震变形性能。仿真结果表明,建筑结构振型受结构横向楼板刚度的影响较显著,不同振型的频率变化中,X向1阶频率与Y向2阶频率变化最快,楼板平面内弯曲频率变化最慢;整体结构在X向与Y向分别呈现线性剪切变形和弯剪变形,Y向上由于填充墙发挥抗震墙功能,底部两层框架变形较小;在7度多遇地震影响下,底部两层结构中第二层楼板变形较第一层严重,多层砖房底部两层框架建筑结构处于弹性工作状态。
英文摘要:
      To strengthen the bottom two stories of a multistory masonry frame structure, it is necessary to study its seismic deformation performance. Taking a masonry building with a bottom two-story frame and an upper four-story frame as the object, a finite element calculation model was constructed with finite element software STRAND7. Considering the horizontal and vertical loads, the seismic deformation performance of the two-story frame at the bottom of the multistory masonry building was analyzed. Simulation results showed that the vibration mode of the building structure was significantly affected by the lateral floor stiffness. The changes of the first mode frequency in the X direction and second mode frequency in the Y direction were the fastest, and the bending frequency in the floor plane changed the slowest. The whole structure showed a linear shear deformation in the X direction and a flexure-shear deformation in the Y direction, due to the filled wall in the Y direction assuming the function of seismic wall. Deformation of the bottom two-story frame was small; under the influence of a 7-degree earthquake, deformation of the second story of the bottom two-story structure was more serious than that of the first story, and the two-story frame structure at the bottom of the multistory masonry house was in an elastic working state.
查看全文   查看/发表评论  下载PDF阅读器
关闭

您是第2377383位访问者
版权所有欢迎《地震工程学报》编辑部
主管单位:中国地震局 主办单位:中国地震局兰州地震研究所
清华大学
中国地震学会
中国土木工程学会
地  址: 甘肃省兰州市东岗西路450号 邮编:730000 电话:0931-8275892 E-mail: dzgcxb@gsdzj.gov.cn
本系统由北京勤云科技发展有限公司设计