摘要
研究重庆山区建筑中边坡侧面挖掘对建筑稳定性的影响,能够为重庆坡地建筑物的安全设计提供准确的依据。当前采用边坡正面挖掘进行建筑抗震性的包络设计,没有考虑横向位移差的作用,这样就会导致建筑物的结构不稳定,带来安全隐患。提出一种基于有限元的重庆山区建筑中边坡侧面挖掘的方法。根据有限元分析法建立边坡侧面挖掘下建筑的受力模型,利用边坡侧面挖掘下建筑物的几何方程、结构方程与势能方程求出单元刚度方程,最终获得边坡侧面挖掘下建筑物的平衡方程,完成边坡侧面挖掘对建筑稳定性的分析。仿真实验结果表明,改进方法能够对坡地建筑物的稳定性能进行更精确的分析,效果令人满意。
Study in Chongqing mountain area construction side slope excavation of the effect on the stability of the building, to Chongqing slope safety design of the building to provide accurate basis. The current envelope with positive slope excavation construction earthquake-resistance design, does not take into account the effect of horizontal displacement difference, this will lead to the structure of the structure is not stable, safe hidden trouble. Put forward a kind of side slope mining in Chongqing mountain building based on the finite element method. According to the finite element analysis of stress on the construction side slope excavation model is set up, using the side slope excavation under the structure of the geometric equations, the structural equation and energy equation and the stiffness equation, the winning side slope excavation under the structure of the balance equation, the complete side slope excavation analysis of the stability of the building. The simulation experimental results show that the improved method can carry on the more precise to the slope stability of the building performance analysis, the effect is satisfactory.
出处
《科技通报》
北大核心
2016年第2期115-118,共4页
Bulletin of Science and Technology
