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Thermomechanical fire analysis of timber composite beams with interlayer slip

机译:层间滑移的木材复合梁的热力火灾分析

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The purpose of this paper is to model the behavior of timber composite beams with interlayer slip, when simultaneously exposed to static loading and fire. A moisture-thermal state of the beams is analyzed by the Luikov equations, and the finite difference method has been used for their discretization. Furthermore, a mechanical behavior of timber composite beams has been modeled by Reissner's kinematic equations [8], which, have been discretized by the finite element method. The obtained results show, that the material properties of timber play an important role in the fire resistance analysis of timber structures when exposed to fire.
机译:本文的目的是模拟当同时承受静载荷和火时,带夹层滑移的木材复合梁的行为。利用Luikov方程分析了梁的湿热状态,并采用了有限差分法对其进行离散化。此外,木材复合梁的力学行为已经通过Reissner的运动方程[8]进行了建模,该方程已经通过有限元方法离散化了。所得结果表明,木材的材料性能在暴露于火中时对木材结构的耐火性分析起着重要作用。

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