集成刚度法在旧桥维修工程中的应用  

Application of integrated stiffness method on maintenance engineering in existing bridge

作　　者：王东威 

机构地区：[1]河南省交通规划勘察设计院有限责任公司,河南郑州450052

出　　处：《四川建筑科学研究》2012年第4期75-77,共3页Sichuan Building Science

基　　金：国家自然科学基金资助项目(50508040)

摘　　要：为便于工程技术人员对既有桥梁结构伸缩缝、支座的更换,以旧有预应力混凝土连续桥面简支空心板桥为例,用集成刚度法分析了由温度影响力、混凝土收缩徐变影响力及汽车制动力引起的纵向水平力分配及板式橡胶支座的剪切变形验算。计算结果表明,集成刚度法可以有效的分析在维修工程中各影响因素引起的纵向水平力的分配,判定不同工况下的支座变形是否满足规范要求。用此方法确定的不同伸缩缝设置形式下的支座更换更为合理,为既有桥梁支座及伸缩缝的更换提出科学、合理、有效的计算方法。In order to change of bearing and expansion joint, based on the existing pre-stressed concrete hollow slab, assignment on longitudinal horizontal force of temperature influence and shrinkage and creep influence and braking force by integrated stiffness method and calculation of shearing deformation of rubber bearing are analyzed. From the results it indicate that integrated stiffness method can analyze the longitudinal horizontal force effectively and decide beating deformation whether meet standard requirement or not, which can provide appropriate method for replacement.

关 键 词：桥梁工程 集成刚度法 纵向水平力 维修 

分 类 号：U449.7[建筑科学—桥梁与隧道工程]