摘要
吉安白鹭大桥为主跨188m的中承式钢管混凝土系杆拱桥,钢管拱安装采用缆索吊机斜拉扣挂吊装施工方法。拱段连接采用外法兰形式,每根钢管对接设4个连接点,用螺栓定位。每节拱段对应一组扣索和锚索,下端采用P型锚,上端采用夹片锚。合龙段安装速度要快,松钩前应确保其与两端拱段接头充分顶紧。
Ji＇an Bailu Bridge, a middle-support steel pipe concrete tie bar arch bridge with the main span of 188m, was erected by means of slant pull and buckle with cable crane, while the arch sections were connected with each other by flanges in which four connecting points were positioned with bolts. Each arch section was equipped with a group of buckle and anchoring cable correspondently, P-type anchor for the lower end and clamp anchor for the upper end. The closing arch should be erected quickly, and the two ends should be ensured to be tightly butted before loosing the hook.
出处
《建筑技术》
北大核心
2006年第2期96-98,共3页
Architecture Technology
关键词
拱桥
钢管拱
安装
吊装
arch bridge
steel pipe arch
erection
hoisting
