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自升式平台带齿条圆柱桩腿挤压冰力

DOI: 10.3969/j.issn.1006-7043.201312080

Keywords: 自升式平台, 带齿条桩腿, 最大挤压冰力, 挤压冰力模式, 模型实验

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Abstract:

为了研究作用在自升式平台结构带齿条桩腿上的冰力,进行了一系列模型实验来对比两侧带齿条的圆柱压头和不带齿条的光滑圆柱压头上的冰力.实验结果表明:当齿条尺寸相对圆柱直径较小时,自升式压头上的最大挤压冰力与圆柱压头上的最大挤压冰力差别不大,且齿条方向与冰板运动方向夹角的改变,对自升式压头上的最大挤压冰力无显著影响.根据对模型实验结果的分析,提出自升式平台带齿条桩腿上挤压最大冰力的计算方法,并指出了自升式平台上存在的3种挤压冰力模式.

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