主动拉杆式V形墩及0#块支架结构设计及验算  

Structural Design and Checking Calculation of Active Pull Rod V-shaped Pier and 0# Block Support

作　　者：朱能军 戴志成 吕相斌 彭永超 叶鑫 ZHU Nengjun;DAI Zhicheng;LV Xiangbin;Peng Yongchao;YE Xin(Zhongjiao Road and Bridge Construction Co.,Ltd.,Beijing 100027,China)

机构地区：[1]中交路桥建设有限公司,北京100027

出　　处：《工程技术研究》2024年第7期176-178,共3页Engineering and Technological Research

摘　　要：预应力混凝土V形刚构桥具有线条和造型优美、能与环境融为一体的外观特点,能减少墩顶主梁的负弯矩,减少计算跨径。文章以梅山水道跨堤桥V形桥及0#块施工为背景,创新设计了主动拉杆式V形墩及0#块临时支架结构,该结构能自主平衡构件产生的水平分力,使支架架构更稳定,同时减少了工程量,提高了施工效率。在此基础上,文章提出了主动拉杆式V形墩及0#块临时支架结构验算方法及验算结果,进一步验证了结构设计的合理性。Prestressed concrete V-shaped rigid frame bridge has the appearance characteristics of beautiful lines and shapes,and can be integrated with the environment.It can reduce the negative bending moment of the pier top girder and reduce the calculated span.Based on the construction of V-shaped bridge and O#block of Meishan waterway cross-dike bridge,this paper innovatively designs the structure of active rod-type V-shaped pier and O#block temporary support.This structure can independently balance the horizontal component force generated by the components,make the support structure more stable,reduce the engineering quantity and improve the construction efficiency.On this basis,the article puts forward the checking method and checking results of the V-shaped pier with active tie rod and the temporary support structure of O#block,which further verifies the rationality of the structural design.

关 键 词：V形墩 0#块 支架设计 结构验算 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]