用于区域震害模拟的多自由度剪切层模型参数确定方法

基于时程分析的区域多层建筑震害模拟的参数标定方法与损伤等级判别方法研究

Journal of Earthquake Engineering, 2016, 

DOI: 10.1080/13632469.2016.1160009

基于多自由度剪切层模型与弹塑性时程分析的区域多层建筑震害模拟方法能较为全面的把握建筑的非线性动力特性以及地震动的“幅值”、“时域”和“频域”特性。本文针对多自由度剪切层模型的（1）参数确定方法与（2）损伤等级判别方法进行了研究。通过三栋单体建筑的试验数据以及2014年鲁甸地震龙头山镇的震害数据对提出的方法进行了验证。最后，采用提出的方法对一个城市区域进行了震害模拟，展示了所提出方法在海量建筑场景下的模拟效果。

FIGURE 1: The MDOF shear model

FIGURE 2: Regional seismic scenario of a large urban area

Parameter determination and damageassessment for THA-based regional seismic damage prediction of multi-storybuildings

Chen Xiong, Xinzheng Lu, Xuchuan Lin, Zhen Xu and Lieping Ye

Journal of Earthquake Engineering, 2016,
DOI: 10.1080/13632469.2016.1160009

Regional seismic damage prediction based onmultiple-degree-of-freedom shear model and nonlinear time-history analysis cancomprehensively consider the characteristics of buildings and ground motions.Two major challenges of applying such methodology, namely (1) parameterdetermination and (2) damage assessment of buildings in urban scale,are addressed in this study. The reliability of theproposed methods are validated using the tests of three individual buildingsand the observed seismic damages of LongtoushanTown in 2014 Ludian earthquakes ofChina.Finally, a regional seismic damage prediction is performed for a large urbanregion, which demonstrates the applicability and scalability of the proposedmethods.