双柱式桥墩受火损伤后受力性能评估及加固  

Mechanical Performance Evaluation and Reinforcement of Double-column Piers Damaged by Fire

作　　者：陈云 CHEN Yun(Fokai Branch of Guangdong Provincial Expressway Development Co.,Ltd.,Guangdong Foshan 528000)

机构地区：[1]广东省高速公路发展股份有限公司佛开分公司,广东佛山528000

出　　处：《广东公路交通》2020年第5期47-51,共5页Guangdong Highway Communications

摘　　要：近年来高速公路桥梁因灾害导致受损的事故时有发生。以佛开高速公路龙山跨线桥双柱式墩受火损伤事故为背景,对其受火后的受力性能评估及加大截面法加固效果进行分析,为同类结构的检测评估和加固设计提供借鉴。In recent years,highway bridges have been damaged frequently due to disasters.In this paper,being based on the fire damage accident of double column pier of Longshan Overpass Bridge of Fokai Expressway,the mechanical performance evaluation and reinforcement effect of enlarging section method have been analyzed,which could provide references for detection evaluation and reinforcement design of similar structures.

关 键 词：双柱式桥墩 受火损伤 加大截面法 桥梁加固 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]