木构建筑的抗振动模型设计与仿真

Design and simulation of anti-vibration model for wooden buildings

针对传统木构建筑的抗振动性能较差问题,提出一种新的木构建筑抗振动模型设计方法.结合木构建筑自身稳定性和位移限值特性,选定振动指标绘制出时间-位移曲线图,对木构建筑在不同震动下的抗振动性能进行评估,并对比了位移不定情况下建筑承受荷载能力.结果表明,所提方法充分考虑了木构材料的弹性形变及其自身的静压本构关系,可以较高精度地分析木构建筑自振频率与振型,保证了最终所建模型的稳定性及准确性,所提抗振动模型比传统模型更能体现出木构建筑的抗振动性能.

In order to solve the poor anti-vibration properties of traditional wooden buildings, a new design method for the anti-vibration model for the wooden buildings was proposed. Combined with the stability and the characteristics of displacement limit value of wooden buildings, the vibration index was selected to draw the time-displacement curve, and the anti-vibration properties of wooden buildings under different vibration conditions were evaluated. Under the condition of indeterminate displacement, the load capacity of buildings was compared. The results show that the elastic deformation and its constitutive relationship of wooded materials under static pressure were fully considered in the proposed method, the self-vibration frequency and vibration mode of wooden buildings can be analyzed with high precision, and the stability and accuracy of final model can be confirmed. The proposed model can reflect the anti-vibration properties of wooden buildings more than the traditional model.