衡州大道桥梁改造方案及其承载力评估

英文篇名：Rebuilding scheme analysis and bearing capacity estimation of Hengzhou road bridge
中文刊名：中南林业科技大学学报
英文刊名：Journal of Central South University of Forestry & Technology
作者：任森智 ; 贺国京 ; 刘剑
英文作者：REN Sen-zhi ; HE Guo-jing ; LIU Jian(Central South University of Forestry and Technology ; Changsha 410004 ; Hunan ; China)
中文关键词：改造方案 ; 有限元 ; 荷载试验 ; 承载力
英文关键词：rebuilding scheme ; finite element ; load test ; bearing capacity estimation
出版日期：2011-09-15
机构：中南林业科技大学;
年：2011
期：09
出版单位：中南林业科技大学学报

摘要

为确保改造后衡州大道桥的通行安全,分别对3种不同改造方案进行分析对比,采用有限元方法分析不同改造方案对桥梁结构承载力的影响,以确定最优方案。并通过荷载试验的方法研究其在改造后的受力性能,最后对其承载力进行评定。结果表明:改造铺装层方案具有施工方便、费用较低的优点,且改造后结构的承载力满足要求。研究成果为类似桥梁的加固改造工作提供可靠的技术支持。
To guarantee the safety of Hengzhou road bridge after rebuilt,three rebuilding schemes were analyzed and compared.And finite element method was used to analyzed the influence of different scheme on ultimate bearing capacity of this bridge.Then the best one was confirmed.The load test method was adopted to research the mechanical behavior of this bridge after rebuilt,and its bearing capacity was evaluated.The results show that the scheme of rebuilting pavement have such advantages as easy construction,low cost,and so on.Meanwhile,it can make sure that the bearing capacity of this bridge could meet the requirements.This achievement can provide some reference for similar engineering.

引文

[1]贺国京,仝秋果,叶光华,等.已加固钢筋混凝土双曲拱桥承载能力评定[J].中南林业科技大学学报,2010,30(12):188-193.
    [2]杨占雄,张贤文.刚架拱改建双曲拱结构性能研究[J].公路工程,2010,(4):180-181.
    [3]涂军莲,何英勇.旧路改建中石拱桥利用方法和实例[J].公路工程,2010,(2):92-93.
    [4]宗周红,任伟星,郑震飞.既有桥梁承载力评估方法[J].地震工程与工程振动,2005,25(5):147-152.
    [5]姜传锦.预应力混凝土连续箱梁桥静、动荷载试验研究[J].铁道工程学报:自然科学版,2009,(5):41-43.
    [6]郭静.基于静载试验的连续刚构桥承载力预测[D].南宁:广西大学,2008.
    [7]王卿,胡卫平,杨沪湘.板式桥梁设计计算分析方法[J].公路,2009.11(11):17-19.
    [8]公路桥梁承载力检测评定规程(报批稿)[S].北京:人民交通出版社,2004.
    [9]交通部标准公路旧桥承载能力鉴定方法(试行)[S].北京:人民交通出版社,1989.
    [10]混凝土结构加固设计规范(CECS25:90)[S].北京:中国计划出版社,1992.