高速铁路客站站厅层钢桁架竖向地震振动台试验模型研究  

Shaking table test model research of long-span station hall structure of high-speed railway station under vertical earthquake excitation

作　　者：余志武[1,2] 邬亮[1,2] 国巍[1,2] 刘汉云[1,2] 

机构地区：[1]中南大学土木工程学院,湖南长沙410075 [2]高速铁路建造技术国家工程实验室,湖南长沙410075

出　　处：《铁道科学与工程学报》2013年第5期7-11,共5页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(50938008;51108466);中国博士后基金资助项目(20110491277);中国博士后基金特别资助项目(2012T50663);中南大学博士后基金资助项目;中南大学研究生学位论文创新基金资助项目

摘　　要：以天津西站典型结构为例,提取站厅结构主要单元,阐述可反映其抗震性能的振动台试验模型设计和制作方法。为保证试验结果可靠性,大跨钢桁架模型严格按照相似关系和等效原则设计,并采用8个相同的边桁架单元作为中间桁架单元的边界条件。比较试验模型和相应有限元模型的动力特性,明确所设计试验模型符合要求,能反映原型结构的竖向地震响应特征。The station hall of Tianjin west railway station was referred and adopted to extract the main structural units so as to elaborate the shaking table test model design and production which can reflect the seismic perform- ance. In order to ensure the reliability of test results, the long - span steel trusses model was designed in strict accordance with the similarity relation and equivalent principle, and eight same truss units were used to be the boundary conditions of the intermediate truss unit. Comparing the dynamic characteristics of the test model with the corresponding finite element model, it is sure that the design experiment model meets the requirements and reflects vertical seismic response characteristics of the prototype structure.

关 键 词：房桥合一 站厅结构 振动台试验 竖向地震 

分 类 号：TU317[建筑科学—结构工程]