摘要
PC斜拉桥按成桥控制标高确定的设计索长与施工控制时所确定的索长是不同的。由于施工因素的变化,其“精确”值只能逐步给出,这会影响施工进度,故施工监控时给出控制索长,以解决施工进度与制索进度的矛盾。结合鄂黄长江公路大桥480 m PC斜拉桥的施工实例,初步讨论斜拉桥施工控制索长的确定方法。
The designed cable length determined according to the control elevation of the built bridge and the length determined during construction are different. Due to the variations of construction factors, the “accurate value” can only be given out progressively, which would influence construction progress. So the control cable length should be given out during construction control to resolve the contradiction between construction progress and cable manufacturing progress. A method of determining the cable length of cable - stayed bridge during con-struction control is preliminarily discussed based on the construction practice of Ehuang Yangtze River Highway Bridge, which is a 480m - long PC cable stayed bridge.
出处
《公路交通技术》
2002年第4期40-42,共3页
Technology of Highway and Transport
关键词
施工控制
PC斜拉桥
索长
设计
长度
PC cable - stayed bridge cable length determination
