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如何区分无限长梁和有限长梁？文克勒地基上无限长梁和有限长梁的内力是如何？
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如何区分无限长梁和有限长梁？文克勒地基上无限长梁和有限长梁的内力是如何？
时间：2022-01-10 05:59
关键词：
地基处理
土木建筑工程
大学试题
工学
答案解析
<p> 无限长梁与有限长梁的区分由柔性指数确定，当基础梁的柔性指数大于或等于二时为无限长梁；当柔性指数在π/4到π之间时为有限长梁。<br> 文克勒地基上无限长梁和有限长梁的内力是先假定地基每单位面积上所受的压力与其相应的沉降量成正比，而地基是由许多互不联系的弹簧所组成，某点的地基沉降仅由该点上作用的荷载所产生，再通过求解弹性地基梁的挠曲微分方程得出计算内力值。</p>
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