粘贴钢板法在加固双曲拱桥中的应用研究  

Study on Application of Bonding Steel Plate Method in Reinforcement of Double-curved Arch Bridge

作　　者：李茂奇[1] 刘芳[1] 

机构地区：[1]天津市市政工程研究院,天津市300074

出　　处：《城市道桥与防洪》2014年第1期61-63,8,共3页Urban Roads Bridges & Flood Control

摘　　要：为了提高现有双曲拱桥的承载能力,通过在拱肋上粘贴钢板的方法对其进行加固。采用桥梁博士3.03有限元分析软件建立模型并进行受力分析。为了验证加固效果,对该桥加固前、后分别进行一次荷载试验,通过对加固前、后荷载试验理论值和实测值进行系统对比分析,证明了粘贴钢板法能有效提高双曲拱桥的整体刚度,对整体强度略有提高。该方法可以应用到其他双曲拱桥的加固设计和施工中。In order to improve the carrying capacity of the existing double-curved arch bridges,the method of bonding the steel plate on arch rib is used to reinforce it.The finite element analysis software of Bridge Doctor 3.03 is used to establish the model and to analyze the stress.In order to validate the reinforcement effect,a load test is carried out separately before and after the reinforcement of this bridge.According to the systematical comparison and analysis of the theoretical value and measured value of load test before and after the reinforcement,the method of bonding the steel plate is proved able to effectively improve the integral rigidity of double-curved arch bridge,and slightly improve the integral strength.This method can be used in the reinforcement design and construction of the other double-curved arch bridges.

关 键 词：粘贴钢板法 加固 双曲拱桥 荷载试验 受力分析 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]