基于组合截面分析的拱桥加固效果评价  

Reinforcement Effect Evaluation of Arch Bridge Based on Co-Section Analysis Method

作　　者：黄灿[1] 刘思孟[1] 周建庭[1] 周磊[1] 吴恒[1] 

机构地区：[1]重庆交通大学土木建筑学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2012年第3期373-376,共4页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：重庆市重大科技攻关基金项目(CSTC2009AB6149);重庆市杰出青年基金项目(CSTC2008BA6038)

摘　　要：针对拱桥加固的二次受力特性,分析了加固后拱圈组合截面内力分配情况;运用荷载置换率和加固层利用率分别对原拱圈和加固层拱圈进行分析,完成加固效果评价。依托实际工程,进行有限元分析,证实了基于组合截面分析的拱桥加固效果评价方法的合理性、直观性,对于同类型桥梁的加固效果评价具有一定的参考价值。On the basis of secondary stress characteristics of arch bridge,the arch ring of internal force distribution of composite section after reinforcement was analyzed.The load exchange rate and utilization of reinforcement layer respectively were used to analyze the original arch ring and the reinforcement of arch ring in order to complete strengthening effect assessment.Based on the actual engineering,finite element analysis was confirmed by section analysis evaluation method of arch bridge to be rational and intuitive.It has the certain reference value for the same type of bridge reinforcement effect evaluation.

关 键 词：拱桥 组合截面 加固效果评价 荷载置换率 加固层利用率 

分 类 号：TU312.1[建筑科学—结构工程]