混凝土桥塔拉索锚固系统设计  

Design of Anchorage System for TowerBridge of Concrete Bridge

作　　者：戴世宏 DAI Shi-hong(Architects&Engineers Co.,Ltd.of Southeast University,Nanjing 210096,China)

机构地区：[1]东南大学建筑设计研究院有限公司,南京市210096

出　　处：《北方交通》2020年第4期6-9,共4页Northern Communications

摘　　要：简要阐述了混凝土桥塔斜拉索的锚固的三种形式,对跨径布置为(90+128) m的单塔双索面双层钢桁梁斜拉桥的桥塔拉索锚固系统进行了介绍,并通过有限元软件对锚固系统的应力进行计算分析,最后对该桥所采用锚固方式中钢锚梁和塔壁所分担的水平力进行分析,分析结果表明,斜拉索约80%的水平分力由钢锚梁承担,塔壁承担了剩余水平力,达到设计预期。The article briefly describes the three types of anchoring of cable stayed cables of concrete bridge towers,and the cable stays of a single-tower double-cable double-story steel truss cable-stayed bridge with a span of( 90 + 128) m. The anchoring system is introduced,and the stress of the anchoring system is calculated and analyzed by the finite element software. Finally,the horizontal force shared by the steel anchor beam and the tower wall in the anchoring method adopted by the bridge is analyzed. The analysis results show that about 80% of the horizontal component of the stay cable is borne by the steel anchor beam,and the tower wall bears the remaining horizontal force. Meet design expectations.

关 键 词：斜拉桥 拉索锚固区 钢锚梁 锚固系统 

分 类 号：U443.2[建筑科学—桥梁与隧道工程]