带地梁的新型半整体式无缝桥梁温度效应研究  

Temperature Effect of Innovative Semi-integral Abutment Jointless Bridge with Ground Beam

作　　者：邵旭东[1] 占雪芳[1] 金晓勤[1] 陈志新[1] 

机构地区：[1]湖南大学桥梁工程系,湖南长沙410082

出　　处：《中国公路学报》2010年第1期43-48,57,共7页China Journal of Highway and Transport

基　　金：国家西部交通建设科技项目(2009318000044);教育部高等学校博士学科点专项科研基金项目(20040532018)

摘　　要：为了了解带地梁的新型无缝桥梁在温度变化下吸纳梁体变形的能力及接线路面的裂缝分布和发展规律,推导了带地梁无缝桥梁在温度作用下的内力与变形计算公式,编译了相应的接线路面配筋计算程序,进行了足尺带地梁无缝桥梁的试验研究,同时对比了带地梁无缝桥梁试验结果与理论计算结果。结果表明:带地梁的新型无缝桥梁能很好地传递梁体变形,实现对梁体变形的吸呐;按照程序的计算结果进行接线路面的配筋设计是安全的。In order to understand the absorbing longitudinal displacement performance of semi integral abutment jointless bridge with ground beam caused by temperature changing and the distribution and development rules of approach pavement cracks, the internal force and deformation calculation formulas of the semi integral abutment jointless bridges （SlABs） with ground beam under temperature load were deduced. The reinforcement calculation program of the approach pavement was compiled. The full-size experiment of semi integral abutment jointless bridge with ground beam was carried out. Meanwhile, the theoretical calculation results and experimental results of jointless bridge with ground beam were compared. The results show that semi-integral abutment jointless bridges with ground beam have better performance in transmitting and absorbing the deformation from the bridge caused by temperature changing. The compile program is safe for designing the approach pavement reinforcement.

关 键 词：桥梁工程 无缝桥梁 试验研究 温度效应 接线路面 裂缝间距 裂缝宽度 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]