寒冷地区混凝土箱型梁桥温度裂缝研究  

RESEARCH OF THE TEMPERATURE CRACK ON REINFORCED BOX GIRDER IN COLD REGION

作　　者：李长凤[1] 周莉[1] 徐晓红[1] 尹晓黎[1] 杜文学[1] 

机构地区：[1]黑龙江科技大学建筑工程学院,哈尔滨150022

出　　处：《低温建筑技术》2013年第10期31-34,共4页Low Temperature Architecture Technology

基　　金：黑龙江省教育厅科学技术研究项目(12511487);黑龙江省教育厅科学研究项目(12513084)

摘　　要：通过对北方低温环境的混凝土箱梁裂缝形成机理的分析,研究影响温度裂缝的重要因素温度应力和温差荷载,并以哈尔滨市松浦大桥的工程为依托,建立相应的有限元模型,分析降温模式的温差荷载与应力的关系,为温度裂缝的防治措施提供依据,并且对温度裂缝提出了相应的控制措施和修补治理方法,为寒冷地区混凝土箱梁桥的设计和施工提供参考。Based on the formation mechanism analyzing of the crack on reinforced box girder of low temperature condition in the north of China areas, the thermal stress and the temperature load are studied that is the important influencing factors on the crack of the box girder. In order to analyze the relation- ship of the temperature load and the stress, with support from Harbin Songpu north approach bridge, a simplified scaled finite element model is given. It is to provide evidence for the prevention measures and the remedial method of the temperature crack, and to provide reference for the design and construction on the reinforced box girder of the low temperature areas.

关 键 词：混凝土箱梁温度裂缝 温度应力 修补治理方法 

分 类 号：TU375.1[建筑科学—结构工程]