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平台在各种载荷作用下所产生的水平位移是影响平台正常工作的因素之一 ,而桩柱的入土长度又是影响平台水平位移的主要因素。引入弯矩系数 ,应用连续梁分析理论 ,分析了常地基系数桩柱在风载作用下 ,平台与桩柱交接处的弯矩、水平位移与入土长度之间的关系。结果表明 ,对常地基系数桩柱 ,其入土长度只须等于桩柱入土长度按无限长计算时第一个拐点长度的 3倍 ,更大的入土长度对水平位移的减小量可忽略不计
The horizontal displacement of the platform under various loads is one of the factors that affect the normal operation of the platform. The length of pile entry is also the main factor that affects the horizontal displacement of the platform. The paper introduces the moment coefficient and applies the theory of continuous beam analysis to analyze the relationship between the bending moment and the horizontal displacement of the piles on the foundation and the length of the soil under wind load. The results show that for a pile with an anomalous foundation coefficient, the length of soil entering the pile only needs to be equal to three times of the length of the first inflection point when the length of the pile is calculated as an infinite length, and the reduction of the horizontal displacement by the larger soil entry length is negligible