简支空心板桥体外预应力简化加固设计计算方法  

The calculation method of external prestress simplified reinforcement and design of simply bing supported hollow slab bridge

作　　者：肖富华 吴尚炳 Xiao Fuhua;Wu Shangbing(Zhejiang Jiaogong Group Limited Company by Share,Hangzhou 311103,China)

机构地区：[1]浙江交工集团股份有限公司,浙江杭州311103

出　　处：《山西建筑》2022年第1期149-150,179,共3页Shanxi Architecture

摘　　要：由于桥梁服役时间过长,通常会导致桥梁材料退化,进一步导致结构承载力降低,为满足设计荷载,需采用有效的手段对桥梁进行加固,通过对一空心板梁桥加固设计,采用预应力碳板提供体外预应力,通过计算分析,结果表明,采用预应力碳板对板梁进行抗弯补强后,结构满足设计荷载要求。Because of long service time of the bridge,it will usually lead to the degradation of bridge materials,and further reduce the structural bearing capacity.In order to meet the design load,effective means need to be used to strengthen the bridge,in order to meet the design load,effective measures should be taken to reinforce the bridge,through the reinforcement design to a hollow slab beam bridge,prestressed carbon plate was used to provide external prestress,through the calculation and analysis,the results showed that,after the prestressed carbon plate was used to strengthen the plate beam,the structure met the design load requirements.

关 键 词：加固设计 体外预应力 空心板 

分 类 号：U441[建筑科学—桥梁与隧道工程]