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(昆明理工大學(xué)工程抗震研究所, 昆明 650500)

［摘要］云南省地處南北地震帶上，是我國(guó)地震活動(dòng)最為頻繁的省份之一。根據(jù)云南省地震局提供的資料，統(tǒng)計(jì)了自1993年1月27日云南普洱6-3級(jí)地震起的1993～2015年間云南省地區(qū)共70次5-0級(jí)及以上的地震，其中波及城市地區(qū)的地震共17次。并基于謝禮立院士在《城市防震減災(zāi)能力的定義及評(píng)估方法》的研究，提出了采用烈度差來(lái)研究地震災(zāi)害城市地區(qū)建筑物易損性的方法，通過(guò)收集的資料統(tǒng)計(jì)了地震中不同結(jié)構(gòu)類型房屋基于烈度差的破壞比，使用MATLAB軟件擬合了上述房屋的易損性曲線，并對(duì)其易損性進(jìn)行分析研究。結(jié)果顯示，烈度差的概念與“三水準(zhǔn)”設(shè)防要求相符，對(duì)城市地區(qū)房屋易損性研究有一定幫助。

［關(guān)鍵詞］烈度差； 破壞比；   易損性

中圖分類號(hào)：TU352, P315-9文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)08-0033-04

Study on vulnerability of buildings in urban areas of Yunnan province based on intensity difference

Lin Haojun, Pan Wen, Zhang Jian, Shao Yifan, He Junhong

(Institute of Earthquake Engineering, Kunming University of Science and Technology， Kunming 650500, China)

Abstract:Yunnan province, located in the north-south seismic belt, is one of the provinces with the most frequent seismic activity in China. According to the data provided by Yunnan Seismological Bureau, 70 earthquakes with magnitude 5-0 or above in Yunnan province from 1993 to 2015 since the Puer M6-3 earthquake on January 27, 1993 were counted, including 17 earthquakes affecting urban areas. Based on the research of Academician Xie Lili in the Definition and Evaluation Method of Urban Earthquake Prevention and Disaster Reduction Ability, a method of using intensity difference to study the vulnerability of buildings in urban areas with earthquake disasters was proposed. The damage ratios of buildings of different structural types in earthquakes based on intensity difference were calculated by collecting data. The vulnerability curves of the above buildings were fitted by using MATLAB software, and the vulnerability curves were analyzed. The vulnerability was analyzed and studied. The results show that the concept of intensity difference is consistent with the requirement of "three-level" fortification, which is helpful to the study of housing vulnerability in urban areas.

Keywords:intensity difference; damage ratio;  vulnerability

作者簡(jiǎn)介：林皓鋆，碩士，Email：414683193@qq.com。