北京上地斜拉桥斜拉索施工控制  

Stay Cable Construction Control of Beijing Shangdi Cable-stayed Bridge

作　　者：付裕[1] 

机构地区：[1]大连理工大学土木建筑设计研究院有限公司,大连116085

出　　处：《北方交通》2014年第3期1-3,共3页Northern Communications

摘　　要：北京上地斜拉桥是一座五跨连续独塔单索面曲线预应力混凝土斜拉桥,桥梁全长510m,跨径布置为(46+46+230+98+90)m=510m,采用塔、墩固结体系,主梁支承于塔墩上。主塔每侧设22对斜拉索,拉索规格分为337、349、367、379、409五种,拉索规格在国内斜拉桥中最大。针对本桥的设计及大型号斜拉索张拉的特点,介绍了拉索的张拉控制。Beijing Shangdi cable -stayed bridge is a five -span continuous curve prestressed concrete cable - stayed bridge with a single tower and single cable plane. The length of cable - stayed bridge is 510m and span arrangement is 46 ＋46 ＋ 230 ＋ 98 ＋90 m = 510m, using tower and pier consolidation system with the main beam supporting the tower on the pier. Each side of the main tower has 22 pairs stay cable, which the cable＇s specifications are five kinds, including 337,349,367,379,409 and the specification of the cable is the largest in the cable - stayed bridge of China. Based on the design of the cable - stayed bridge and the tension characteristics of a large model, this paper introduces the tension control of the stay cable.

关 键 词：上地斜拉桥 震动频率法 影响矩阵 施工控制 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]