空心板铰缝协同工作性能影响因素分析  

Influencing Factor Analysis on Coordinated Working Performance of Hinge Joint in Hollow Slab

作　　者：卫军[1] 李沛[1] 徐岳[2] 董荣珍[1] 余志武[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075 [2]长安大学公路学院,陕西西安710064

出　　处：《中国公路学报》2011年第2期29-33,共5页China Journal of Highway and Transport

基　　金：国家自然科学基金重点项目(50538070);国家西部交通建设科技项目(200631822302-04);铁道部重大科技项目(2008G031-18)

摘　　要：为了研究空心板铰缝协同工作性能,基于前期的铰缝耐久性试验及静载试验,运用因素分析法,提出了表征空心板铰缝协同工作性能的参数及其计算公式。结合常用的空心板铰缝形式,讨论了各因素对值变化的影响,分析了值对各因素的敏感性。结果表明:铰缝配筋率、铰缝形式、铰缝混凝土强度比以及铰缝材料劣化都会影响空心板铰缝的协同工作性能;深铰缝协同工作性能优于浅、中2种铰缝形式。In order to study the coordinated working performance of hinge joint in hollow slab,based on early hinge joint durability experiment and static experiment,calculation formula of coordinated working performance parameter  was introduced by factor analysis method.Combined with the frequently-used hinge joint forms in hollow slab,influences of the factors on  were discussed and sensitivities of  for the factors were analyzed.Results show that the coordinated working performance of hinge joint is influenced by hinge joint reinforcement ratio,hinge joint form,hinge joint concrete strength ratio and hinge joint destructiveness.The coordinated working performance of deep hinge joint is better than that of shallow and middle hinge joint.

关 键 词：桥梁工程 空心板 因素分析法 协同工作性能 铰缝 影响因素 

分 类 号：U443.4[建筑科学—桥梁与隧道工程]