RESERCH ON HIGH-SPEED RAIL PRESTRESSED CONCRETE CONTINUOUS BEAM BRIDGE DESIGN DEFORMATION

被引：0
|
作者：
Zhang, Nan [1 ]
Lei, Junqing [1 ]
Zhang, Kun [1 ]
机构：
[1] Beijing Jiaotong Univ, Sch Civil Engn, Dept Bridge Engn, Beijing 100044, Peoples R China
来源：
NEW TECHNOLOGIES OF RAILWAY ENGINEERING | 2012年
关键词：
high-speed railway; prestressed concrete; continuous bridge; deflection deformation; finite element analysis; safety;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Taking high-speed railway prestressed concrete continuous beam bridge as research object, deflection control of bridge and the key bridge design technologies are studied. The FE method is used to calculate and analyze the static characteristics of the continuous beam bridges. The main design loads of the main include weight, temperature gradient, the settlement of bearing, the second-phase loads (uniformly distributed load) and moving loads. The influence of these loads on the bridge deflection is studied. The results show that the weight, temperature, bearing settlement, moving load influence the bridge deflection greatly. However, in these factors, the uneven settlement of bearings is the main factor.
引用
收藏
页码：825 / 828
页数：4
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