沥青混凝土高温摊铺对混凝土箱梁桥的影响研究  

Study of Influence of High-temperature Paving Asphalt Concrete on Concrete Box Beam Bridge

作　　者：冯沛[1,2] 邵旭东[2] 刘志才[3] 

机构地区：[1]铁道第三勘察设计院,天津300142 [2]湖南大学土木工程学院,湖南长沙410082 [3]天津市政工程设计研究院,天津300051

出　　处：《城市道桥与防洪》2010年第9期294-298,共5页Urban Roads Bridges & Flood Control

摘　　要：该文在实测数据的基础上,通过有限元热-应力耦合计算,对影响沥青混凝土摊铺所形成的温度梯度的各种参数进行了分析,在此基础上提出了沥青混凝土摊铺所引起的截面上最不利温度梯度的简化模式,可以为沥青混凝土摊铺所引起的截面应力的计算提供参考,最后对防止沥青混凝土高温摊铺引起裂缝的措施提出了一些建议。Based on the field data and after the finite element thermal-stress couple calculation,the article analyzes various parameters to influence the temperature gradient caused by paving of asphalt concrete.On this basis,the article puts forward the simplifying mode of the most disadvantage temperature gradient on the section caused by paving the asphalt concrete able to provide the reference for the calculation of section stress caused by paving the asphalt concrete,and finally puts forward some suggestions to prevent the high-temperature' paving asphalt concrete from the crack.

关 键 词：箱梁桥 沥青混凝土 高温摊铺 热-应力耦合分析 梯度温度 

分 类 号：U448.213[建筑科学—桥梁与隧道工程] TU528.42[交通运输工程—道路与铁道工程]