[1]张令心,戴静涵,沈俊凯,等.基于LM-BP神经网络的钢筋混凝土框架结构震害快速预测模型[J].自然灾害学报,2019,28(02):001-9.[doi:10.13577/j.jnd.2019.0201]
 ZHANG Lingxin,DAI Jinghan,SHEN Junkai,et al.Rapid prediction model of earthquake damage to frame structure based on LM-BP neural network[J].,2019,28(02):001-9.[doi:10.13577/j.jnd.2019.0201]
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基于LM-BP神经网络的钢筋混凝土框架结构震害快速预测模型
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
28
期数:
2019年02期
页码:
001-9
栏目:
出版日期:
2019-04-28

文章信息/Info

Title:
Rapid prediction model of earthquake damage to frame structure based on LM-BP neural network
作者:
张令心 戴静涵 沈俊凯 高华国
中国地震局工程力学研究所, 中国地震局地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080
Author(s):
ZHANG Lingxin DAI Jinghan SHEN Junkai GAO Huaguo
Institute of Engineering Mechanics, China Earthquake Administration;Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration, Harbin 150080, China
关键词:
框架结构震害预测震害影响因子BP神经网络LM算法
Keywords:
frame structureearthquake damage predictionseismic damage impact factorBP neural networkLM algorithm
分类号:
TU375.4;x9
DOI:
10.13577/j.jnd.2019.0201
摘要:
为了快速对建筑群进行震害预测,构建城乡地震易损性模型,为防灾减灾工程提供依据并助力韧性城乡建设,本文选取位于抗震设防烈度为7度区的某市,把该市已完成的震害预测项目的基础数据和结果作为数据库的样本来源,以框架结构作为研究对象,将层数、层高、楼高、柱面积率等12个易获取且关联度较高的关键数据作为震害影响因子,充分利用了Matlab可视性良好的建模特性及LM算法能够快速拟合的优势,训练了一个基于LM算法的BP神经网络震害预测模型。采用多组数据测试,对单次模拟结果数据进行对比,并通过多次随机选取数据样本建立模型,验证该模型的精度和稳定性。测试结果表明,本文所选取的震害影响因子能够对框架结构的震害预测结果进行准确映射,该方法准确快速高效,可以应用于建筑群的快速震害预测实际工作中。
Abstract:
In order to predict the earthquake damage of buildings quickly,to build seismic vulnerability models for urban and rural areas, to provide a basis for the disaster prevention and mitigation projects, and to build the resilient city,a city with the Ⅶ seismic intensity is taken for studies in this paper. As the source of the database sample, basic data and results of the completed earthquake damage prediction are used in the research of RC frame structures.12 high relational key parameters are easily obtained as the seismic damage impact factor, such as the number and the height of floors, the building height and the area ratio of column, and so on. A model of earthquake damage prediction based on LM-BP neural network is fully trained, by use of the advantage that on the one hand MATLAB has a good visibility and on the other hand the LM algorithm can fit very quickly. The results from a number of tests show that the model is very stable, and the seismic damage impact factor can accurately map results of the earthquake damage prediction for the RC frame structure. As a consequence, the new method proposed in this paper can be applied to predict earthquake damage of actual engineering rapidly and accurately.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-01-29;改回日期:2019-02-25。
基金项目:国家重点研发计划重点专项(2017YFC1500606)
作者简介:张令心(1967-),女,研究员,博士,主要从事地震工程方面的研究.E-mail:lingxin_zh@126.com
更新日期/Last Update: 1900-01-01