中强地震下砖混结构建筑的抗毁性分析
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摘要
砖混结构建筑易损性和所处地震环境是影响砖混结构建筑抗毁性分析的关键因素,当前针对中强地震下砖混结构建筑的抗毁性分析存在较大难度,大多依靠地震后建筑受损毁程度分析砖混结构建筑的抗毁性,分析得到的抗毁性结果误差较高,需要深入分析中强地震下砖混结构建筑抗毁性,采用砖混结构建筑振动模型分析地震下建筑各楼层位移变化,确定砖混结构建筑在不同破坏性地震下的受损规律,在此基础上,设计地震动砖混结构建筑加固模型,采用最小二乘法拟合中强地震下加固模型的地震动功率,构建中强地震下砖混结构建筑抗毁性估计模型,预测建筑抗毁系数随机均值谱变化情况,采用实验验证该方法的应用效果,证实该方法的有效性。
The vulnerability to earthquakes of brick-concrete structures are key factors affecting their invulnerability analysis. At present, it is difficult to analyze the invulnerability of brick-concrete structures under moderate-strong earthquakes. The invulnerability of brick-concrete structures is often analyzed according to the post-earthquake degree of damage to the building, and the error of analysis results is relatively high. To more deeply study the invulnerability of brick-concrete structures under moderate-strong earthquakes, the displacement change of each floor of a building under earthquake conditions was analyzed using the brick-concrete structure vibration model, and the damage law of the brick-concrete structure under different destructive earthquakes was determined. On this basis, the brick-concrete structure reinforcement model was designed, and the least square method was used to fit the power of ground motion under moderate-strong earthquakes. The invulnerability estimation model of brick-concrete structures under medium-strong earthquakes was then constructed to predict the variation in the random mean spectrum of the invulnerability coefficient. Finally, the application effect and effectiveness of the method was verified by these experiments.
The vulnerability to earthquakes of brick-concrete structures are key factors affecting their invulnerability analysis. At present, it is difficult to analyze the invulnerability of brick-concrete structures under moderate-strong earthquakes. The invulnerability of brick-concrete structures is often analyzed according to the post-earthquake degree of damage to the building, and the error of analysis results is relatively high. To more deeply study the invulnerability of brick-concrete structures under moderate-strong earthquakes, the displacement change of each floor of a building under earthquake conditions was analyzed using the brick-concrete structure vibration model, and the damage law of the brick-concrete structure under different destructive earthquakes was determined. On this basis, the brick-concrete structure reinforcement model was designed, and the least square method was used to fit the power of ground motion under moderate-strong earthquakes. The invulnerability estimation model of brick-concrete structures under medium-strong earthquakes was then constructed to predict the variation in the random mean spectrum of the invulnerability coefficient. Finally, the application effect and effectiveness of the method was verified by these experiments.
引文
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[14] 李金平,曲婧,刁荣丹.太阳能单户建筑室内热性能分析[J].兰州理工大学学报,2015,41(5):62-66.LI Jinping,QU Jing,DIAO Rongdan.Indoor Thermal Performance Analysis of Solar Single Residential Building[J].Journal of Lanzhou University of Technology,2015,41(5):62-66.
[2] 马龙邦,郭平,赵娟.基于节点防护能力的指挥控制系统网络抗毁性分析方法[J].系统工程与电子技术,2017,39(7):1524-1531.MA Longbang,GUO Ping,ZHAO Juan.Node Protection Capability Based Survivability Assessment Method for Command and Control System Network[J].Systems Engineering and Electronics,2017,39(7):1524-1531.
[3] 杨天青,席楠,张翼,等.基于离散灾情信息的地震烈度分布快速判定方法研究[J].地震,2016,36(2):48-59.YANG Tianqing,XI Nan,ZHANG Yi,et al.Fast Determination Method of Seismic Intensity Distribution Based on Discrete Disaster Information[J].Earthquake,2016,36(2):48-59.
[4] 马宏旺,许清风,陈龙珠,等.构造措施对砖混结构抗燃气爆炸影响的数值模拟研究[J].建筑科学,2015,31(3):110-115.MA Hongwang,XU Qingfeng,CHEN Longzhu,et al.Research on the Residential Masonry Building Response under Gas Explosion with Different Construction Details[J].Building Science,2015,31(3):110-115.
[5] 张东晓,杨婷云.美国页岩气水力压裂开发对环境的影响[J].石油勘探与开发,2015,42(6):801-807.ZHANG Dongxiao,YANG Tingyun.Environmental Impacts of Hydraulic Fracturing in Shale Gas Development in the United States[J].Petroleum Exploration and Development,2015,42(6):801-807.
[6] 周靖,方小丹,江毅.远场长周期地震动反应谱拐点特征周期研究[J].建筑结构学报,2015,36(6):1-12.ZHOU Jing,FANG Xiaodan,JIANG Yi.Characteristic Periods of Response Spectrum for Far-Field Long-Period Seismic Ground Motions[J].Journal of Building Structures,2015,36(6):1-12.
[7] 王洪涛,施卫星,汪洋,等.砖混结构组合基础隔震加固设计及应用[J].工程抗震与加固改造,2016,38(1):105-112.WANG Hongtao,SHI Weixing,WANG Yang,et al.Retrofit of Masonry Structure Using Combined Base Isolation Technology[J].Earthquake Resistant Engineering and Retrofitting,2016,38(1):105-112.
[8] 郑霞忠,汪飞,陈述.基于节点的长距离输水系统网络结构抗毁性测度[J].水利水电技术,2016,47(12):31-35.ZHENG Xiazhong,WANG Fei,CHEN Shu.Node-Based Estimation of Network Structural Invulnerability of Long Distance Water Conveyance System[J].Water Resources and Hydropower Engineering,2016,47(12):31-35.
[9] 杨钦杰,刘华贵,高鹏飞,等.广西农村民居抗震性能调查研究[J].震灾防御技术,2016,11(1):100-110.YANG Qinjie,LIU Huagui,GAO Pengfei,et al.Investigation on the Aseismic Performance of Rural Buildings in Guangxi[J].Technology for Earthquake Disaster Prevention,2016,11(1):100-110.
[10] 王兰民,夏坤,董林,等.第16届世界地震工程大会有关报告研究进展综述[J].地震工程学报,2017,39(2):381-394.WANG Lanmin,XIA Kun,DONG Lin,et al.Summarization of the Related Research Progress of the 16thWorld Conference on Earthquake Engineering[J].China Earthquake Engineering Journal,2017,39(2):381-394.
[11] 黄小福,张迎宾,赵兴权,等.地震条件下危岩崩塌运动特性的初步探讨[J].岩土力学,2017,38(2):583-592.HUANG Xiaofu,ZHANG Yingbin,ZHAO Xingquan,et al.A Preliminary Study of Kinetic Characteristic of Rock-Fall under Seismic Loading[J].Rock and Soil Mechanics,2017,38(2):583-592.
[12] 张亚英,武炜,王博,等.某砖混结构公寓楼隔震加层技术研究[J].工程抗震与加固改造,2016,38(2):139-143.ZHANG Yaying,WU Wei,WANG Bo,et al.Study on Technology of Isolation and Adding Story of A Brick Concrete Structure Apartment Building[J].Earthquake Resistant Engineering and Retrofitting,2016,38(2):139-143.
[13] 朱亚林,马驰,李端洲,等.地震作用下高土石坝的弹塑性分析[J].合肥工业大学学报(自然科学版),2016,39(11):1520-1524.ZHU Yalin,MA Chi,LI Duanzhou,et al.Elasto-Plastic Analysis of High Earth-Rockfill Dam under Earthquake[J].Journal of Hefei University of Technology (Natural Science),2016,39(11):1520-1524.
[14] 李金平,曲婧,刁荣丹.太阳能单户建筑室内热性能分析[J].兰州理工大学学报,2015,41(5):62-66.LI Jinping,QU Jing,DIAO Rongdan.Indoor Thermal Performance Analysis of Solar Single Residential Building[J].Journal of Lanzhou University of Technology,2015,41(5):62-66.
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