弹性地基梁是指搁置在一定弹性性质的地基上的梁。如条形基础,铁轨下的枕木等等。 由于梁的各点都支承在弹性地基上,因而可使梁的变形减少、刚度提高及内力降低。 弹性地基梁与普通梁的区别: 1.普通梁超静定次数有限,而弹性地基梁与基础连续接触,有无数个支座,因此弹性地基梁有无数个超静定次数。 2.普通梁的支座通常看作刚性支座,即略去地基的变形,只考虑粱的变形。弹性地基粱则必须同时考虑地基的变形。实际上,梁与地基是共同变形的。
... beam and slab structure 梁板结构 beam on elastic foundation 弹性基础梁;弹性地基梁 beam raising ceremony 上梁仪式 ...
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并对变截面弹性地基梁的计算进行研究,得出计算公式。
The calculation of changing section foundation beams is also studied, and the calculation formulae are worked out.
最后,由梁单元结点力平衡建立分析弹性地基梁的矩阵方程。
At last, the matrix equation for analyzing elastic foundation beam is held up by the equilibrium of node forces.
在建立管线模型时,接头简化为刚性,管线简化为弹性地基梁。
The joints are predigested as rigid joints and pipelines are predigested as elastic groundsill girders.
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