半整体式桥台结构设计与工程应用研究

Study of Semi-Integral Bridge Abutment Structure Design and Engineering Application

为了解决公路桥梁桥头及伸缩缝等处普遍存在的跳车病害,结合工程实例桥,分析了半整体式桥台桥梁结构设计的特点,对实例桥梁进行了长期变形测试.实测结果与计算结果良好吻合,验证了结构设计和理论分析的合理性.测试结果表明,半整体式桥台桥梁结构型式性能优越,可减少桥梁运营期间的养护工作量.相关研究成果可应用于公路中小跨径桥梁工程.

In order to prevent the universal disease of abutment staggering on the bridge end and the location of expansion and contraction installation, the structural characteristic of design is analyzed, and the long-term distortion of abutment structure is measured, based on the application of an engineering example bridge. The result of test is well coincident with the calculation, and this validates that the structure design and analysis of the engineering example bridge are rational. Testing result indicates that the bridge structure type of semi-integral bridge abutment is predominant, and it can reduce the bridge maintain work in operation period. The study production in this paper can be applied on small and medium-sized highway bridge.