特大跨径钢管混凝土拱桥拱肋吊装施工技术

【摘要】 巫山长江公路大桥是一座主净跨为 4 6 0m的中承式钢管混凝土拱桥 ,主拱肋采用斜拉扣挂法无支架缆索吊装施工 ,已于 4月中旬成功合龙。该实例是对我国无支架缆索吊装系统的进一步完善。其吊装施工中的一些关键技术 ,在得到进一步突破的同时 ,也给拱桥的建造提供了技术借鉴。更多还原

【Abstract】 Wushan Yangtze River Highway Bridge is a midheight-deck steel pipe concrete arch bridge with a main clearance span of 460m. The main arch rib is built by adopting cable-stayed buckled non-support cable hoisting method, which has been closed successfully. The construction of this bridge further improves the non-support cable hoisting system technology. The improved key technologies for hoisting construction are available for reference in arch bridge construction.更多还原