提高空心板梁桥横向整体性与刚度的方法研究  

A Study on the Methodology of Improving Transverse Integrity and Stiffness of Hollow Slab Girder Bridges

作　　者：叶生[1] 

机构地区：[1]安徽交通职业技术学院,合肥230051

出　　处：《滁州学院学报》2012年第5期43-46,共4页Journal of Chuzhou University

摘　　要：利用有限元程序MIDASCivil建立了装配式预应力混凝土空心板桥整体计算模型并进行计算,通过对比分析装配式预应力板桥在重做铺装、粘贴钢板和施加横向预应力的荷载横向分布影响线降低幅度、变化趋势,其中,着重分析了施加横向预应力之后的加固效果。有限元模型分析的结果表明,施加横向预应力效果最好,可达到治本效果。An integrated three dimensional finite element model of a typical fabricated PC hollow slab bridge was built by a general FEM program MIDASCIVIL and a number of calculations were done by contrastively analyzing the low magnitude and changeable trend of load distribution influence line after redo pavement layer, glue stress plate and stretch transverse prestress. The results of calculation show that the strengthen effect of transverse prestress is best and can obtain basic strengthen effect.

关 键 词：重做铺装层 粘贴钢板 施加横向体外预应力 装配式空心板桥 加固 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]