双悬臂梁桥试验检测及安全技术评价  

Evaluation on Experimental Inspection Testing and Security Technology of Double Cantilever Beam Bridge

作　　者：金龙 曾兆权[2] 

机构地区：[1]四平公路工程质量监督站,吉林四平136000 [2]松原市公路管理处,吉林松原138000

出　　处：《城市道桥与防洪》2012年第4期99-101,274,共3页Urban Roads Bridges & Flood Control

摘　　要：双悬臂梁桥为我国在上世纪60年代至90年代期间为解决桥梁跨度不足而使用的一种结构。结构主要以锚固孔和挂梁孔组成。该种桥梁的病害主要体现在牛腿的受力薄弱位置的抗剪能力不足。该文对位于吉林省延边州G302国道上的嘎呀河大桥的试验检测过程作了介绍,以期为今后此类桥梁评定作为借鉴。The double-cantilever beam bridge was a structure used from the 1960s to the 1990s to solve the shortage of bridge span in China.The structure is mainly composed of anchoring hole and hanging-beam hole.The fault of this bridge mainly embodies the shortage of shear capacity at the weak stress position of bracket.The article introduces the experimental inspection testing process of Gaah River Bridge located at G302 National Highway in Jilin Province Yanbian Korean Autonomous Prefecture so as to provide the reference for the assessment of the similar bridges in future.

关 键 词：双悬臂 锚固梁 挂梁 检测 荷载试验 应变 挠度 图们市 

分 类 号：U448.214[建筑科学—桥梁与隧道工程] U446[交通运输工程—道路与铁道工程]