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悬索桥施工误差对吊索长度的影响

DOI: 10.3969/j.issn.1674-0696.2013.05.04, PP. 915-917

Keywords: 悬索桥,空缆线形,成桥线形误差预测,吊索长度修正,suspensionbridge,unloadcablelinearform,predictionoftheerrorofmaincablelinearform,suspenderlengthcorrection

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Abstract:

:?悬索桥普通索股架设完毕后,测量空缆实际线形,修正计算后与理论值进行对比,并分析误差来源。对于空缆线形误差对成桥线形的影响,工程上通常采用一种简单的方法预测成桥时的主缆垂度,即认为成桥时主缆的跨中标高误差与空缆时的跨中标高误差相同。以工程实际为依托,采取另一种误差预测方法,并通过修正吊索无应力长度,使成桥线形符合设计要求。

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