强震下高层建筑横向晃动反应过程模拟分析

Simulation Analysis of Transverse Vibration Response of High-Rise Buildings under Strong Earthquakes

传统的静力弹塑性分析方法对强震作用下的高层建筑的横向晃动反应过程模拟时,存在计算结果不准确、计算用时较长的问题。提出新的强震下高层建筑横向晃动反应过程模拟分析方法,其基于直接积分法的三种方法实施模拟分析。分别是隐式方法、显式方法以及K&K模型方法。其中隐式方法和显式方法均能够对不同自由度下的高层建筑的横向晃动位移作出准确的计算,K&K模型通过高层建筑Von Mises屈服面,分析高层建筑钢材Bauschinger反应基础上,精确模拟出高层建筑在横向晃动反应中的变形过程。实验结果说明,所提方法对强震作用下的高层建筑的横向晃动反应的运算准确率和效率较高。

Traditional analysis method for simulating the transverse vibration response process of high-rise buildings under the influence of a strong earthquake is associated with some problems,such as inaccurate calculation results and longer calculation time.This study aims to propose a new method for simulating the transverse vibration response process of high-rise buildings under strong earthquakes.This method is based on two methods,which are implicit and explicit methods.Both methods can be used to accurately calculate the transverse vibration displacement of high-rise buildings with different degrees of freedom and accurately simulate the deformation process of high-rise buildings during the transverse vibration response.The experimental results show that the proposed method can be applied to calculate the transverse vibration response of high-rise buildings under strong earthquakes with high accuracy and efficiency of operation.