既有刚架拱桥结构损伤检测及研究  

Detection and Research on Structural Damage of Existing Rigid Frame Arch Bridge

作　　者：郑则群[1] 房贞政[1] 

机构地区：[1]福州大学结构工程研究所,福建福州350002

出　　处：《施工技术（下半月）》2011年第3期98-102,共5页Construction Technology

基　　金：福建省自然科学基金项目(2009J05123)

摘　　要：刚架拱桥是在双曲拱桥、桁架拱桥基础上结合斜腿刚构的特点发展而来的复合结构桥型,兼有拱与斜腿刚架的力学特性和优势。通过对一运营十多年既有刚架拱桥的结构损伤调查研究,同时开展静载试验研究,测定桥梁应力、变形等结构整体行为,评估该桥承载能力等实际工作状态,为加固设计提供依据。Rigid frame arch bridge is developed as a combined bridge type based on reinforced concrete double curved arch bridge and truss arch bridge,which respect to rigid frame bridge with inclined legs.A structural damage of rigid frame arch bridge that has been used more than a decade is investigated.At the same time,loading test is carried out in order to measure stress and deflection of the rigid frame arch bridge.The bearing capacity and damage model are judged to provide reference for the bridge reinforcement design.

关 键 词：既有刚架拱桥 结构损伤 承载能力 试验 力学性能 加固 

分 类 号：U441.2[建筑科学—桥梁与隧道工程] U445.7[交通运输工程—道路与铁道工程]