区域建筑震害模拟方法分析对比

发布时间：2018-03-12 18:44

本文选题：区域震害模拟　切入点：HAZUS方法　出处：《工程力学》2017年S1期 　论文类型：期刊论文

【摘要】：地震灾害是我国城市安全的重要威胁,科学合理的城市区域建筑震害模拟对城市防震减灾的规划和应急预案的制定具有重要的参考意义。该文简单介绍了4种区域建筑震害分析方法(易损性矩阵方法、HAZUS方法、多层集中质量剪切(MCS)模型、多自由度(MDOF)剪切/弯剪模型),从典型建筑和具体区域算例的角度,对比了4种方法的预测结果,表明:1)MDOF剪切/弯剪模型对中低层建筑采用了基于中国建筑的参数标定,对于高层框剪结构考虑了弯曲变形,震害预测结果具有最佳的准确性。因此,对于中国城市区域建筑的震害预测,宜采用MDOF剪切/弯剪模型。2)相对于易损性矩阵方法,其他三种方法能更好地考虑目标区域建筑特异性。3)由于MCS模型采用HAZUS参数库进行参数标定,因此二者给出的震害结果大体相近。但MCS模型相对HAZUS方法,能更好地体现层数对结构抗侧特性(骨架线)的影响。该文的分析对比结果,可为区域震害预测研究提供参考。
[Abstract]:Earthquake disaster is an important threat to urban safety in China. The scientific and reasonable earthquake hazard simulation of urban buildings has important reference significance for the planning of urban earthquake prevention and disaster reduction and the formulation of emergency plan. This paper briefly introduces four methods of earthquake damage analysis (vulnerability matrix method and HAZUS method). The MCSM model and MDOF shear / bending shear model are used to compare the prediction results of the four methods from the point of view of typical buildings and regional examples. The results show that the MDOF shear / bending shear model is based on the Chinese building parameter calibration, and the bending deformation is considered for the high-rise frame-shear structure, and the prediction result of earthquake damage has the best accuracy. For earthquake damage prediction of urban buildings in China, MDOF shear / bending shear model. 2) relative to vulnerability matrix method. The other three methods can better consider the building specificity of the target area. 3) because the MCS model is calibrated by using the HAZUS parameter library, the results of earthquake damage obtained by the two methods are generally similar, but the MCS model is relative to the HAZUS method. It can better reflect the influence of the number of layers on the lateral characteristics (skeleton line) of the structure. The analysis and comparison of the results in this paper can provide a reference for the prediction of regional earthquake damage.
【作者单位】：清华大学土木工程系清华大学北京市钢与混凝土组合结构工程技术研究中心;北京科技大学土木工程系;土木工程安全与耐久教育部重点试验室清华大学土木工程系;
【基金】：国家科技支撑计划课题项目(2013BAJ08B02) 国家自然科学基金项目(51578320)
【分类号】：P315.9

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