昆明南三环立交跨线桥桥梁主体结构试验研究  

Experimental Study on the Main Structure of Overpass Bridge of South Three Loop Route in Kunming

作　　者：朱德滨[1] 曾世东[1] 张兰芳[1] 许纯梅[1] 

机构地区：[1]西南林业大学,昆明650224

出　　处：《森林工程》2009年第2期66-69,共4页Forest Engineering

基　　金：云南省科技攻关项目(2004NG05)

摘　　要：结合昆明市南三环路口立交跨线桥工程建设实际,详细介绍桥梁荷载的检测方法,即通过桥跨结构跨中截面应变及挠度的测试,对桥跨结构在试验荷载作用下的实际受力状态和工作状态进行系统分析,进而对该桥梁主体结构的工作性能作出评价,为桥梁竣工验收提供技术依据。Combining with the overpass bridge construction practice of the crossing of south three loop route in Kunming, the bridge loading detection methods were introduced in detail. Namely, through testing the strain and deflection of the middle cross-section in bridge span structure, the actual force state and working state of the bridge span structure under the testing load were analyzed systematically to evaluate the operating performance of the main structure of bridge further and provide technical basis for the bridge final acceptance.

关 键 词：跨线桥 荷载试验 应变 挠度 

分 类 号：U443[建筑科学—桥梁与隧道工程]