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自锚式悬索桥体系转换过程的无应力状态控制法

DOI: 10.3969/j.issn.1674-0696.2014.01.05, PP. 21-24

Keywords: 锚式悬索桥,吊索张拉,结构体系转换,元应力状态控制法,self-anchoredsuspensionbridge,hangertensioning,transitionofstructuralsystem,controlmethodofstressfreestatus

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Abstract:

:?以满足自锚式悬索桥目标成桥状态为前提,针对如何确定自锚式悬索桥体系转换过程中吊索张拉力及张拉程序的问题,提出了自锚式悬索桥体系转换过程的吊索张拉计算方法:调整吊索元应力长度的降温法。由于倒退分析法和传统无应力状态控制法在计算自锚式悬索桥体系转换过程中存在缺陷,在传统无应力状态控制法的基础上,提出了调整吊索无应力长度的降温法。该方法可用于计算自锚式悬索桥且计算方法简单,计算精度高。

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