系杆拱桥吊杆初始张拉力及施工控制  

Preliminary Tension and Construction Control of Tied Arch's Suspension Rod

作　　者：虞建成[1,2] 邵容光[1,2] 王小林 

机构地区：[1]东南大学交通学院 [2]南京市公路建设处

出　　处：《东南大学学报（自然科学版）》1998年第3期112-116,共5页Journal of Southeast University：Natural Science Edition

摘　　要：推导出一种以系杆拱桥系杆的弯矩为目标控制量的吊杆钢束初始张拉力的确定方法，提出了吊杆的分阶段张拉的施工控制方法，此法可使系杆的内力状态更符合设计要求．In design of tied arch bridge, the proper preliminary tension leads to the even moment of the bowstring beam. A method to obtain preliminary tension of the suspension rod is deduced, and the construction control process of straining the suspension rod's prestressed reinforcement in different stages is provided. The method can make the bowstring beam's internal force coincident with the requirements of design more precisely.

关 键 词：系杆拱桥 吊杆 张拉力 施工控制 

分 类 号：U448.225[建筑科学—桥梁与隧道工程]