体外预应力加固简支T梁桥提载效果分析  

The Analysis of Increasing Bearing Effect for External Prestressed Reinforcement Simply-supported T Beam Bridge

作　　者：毛敏[1] 郭文龙[1] 吕立宁[1] 

机构地区：[1]山西省交通科学研究院,山西太原030006

出　　处：《山西交通科技》2014年第5期60-62,共3页Shanxi Science & Technology of Transportation

摘　　要：以某公路T梁桥提载加固为例,介绍无黏结体外预应力加固设计方案,应用有限元软件计算分析该加固方案在T梁桥加固中的效果,并且通过加固前后的荷载试验进行加固效果的验证,为现役桥梁提载加固设计和施工积累一些参考。For a highway T beam bridge increasing bearing reiniorcement as an example, tins paper introduced the design scheme of unbonded external prestressed reinforcement. Using the finite element software, it analyzed and calculated the effect of the reinforcement scheme to the T beam bridge reinforcement. Through the load test before and after reinforcement, it verified the reinforcement effect and accumulated some references for the design and construction of the bridge increasing bearing reinforcement.

关 键 词：旧桥提载加固 体外预应力 加固效果 

分 类 号：U448.231[建筑科学—桥梁与隧道工程]