建筑结构抗爆设防性能目标研究  

Study on Anti-Explosive Fortification and Performance Target of Building Structure

作　　者：齐宝欣[1] 阎石[1] 武行 QI Bao-xin;YAN Shi;WU Hang(School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学土木工程学院,沈阳10168

出　　处：《爆破》2018年第3期135-140,共6页Blasting

基　　金：辽宁省博士启动基金(20141075);辽宁省教育厅基金(L2015448);住房和城乡建设部科研项目(2015-K2-018);沈阳市科技计划项目(17-231-1-89);国家自然科学基金(51278313)

摘　　要：近年来建筑结构的爆炸事件频繁发生,而我国目前还没有统一的建筑结构抗爆设防目标。基于安全性风险评估理论,利用爆炸风险平均发生概率和爆炸风险破坏程度的等级划分,确定爆炸风险的平均影响程度。结合我国《建筑结构可靠度设计统一标准》和实际爆炸事件的特点,提出基于建筑结构重要性的抗爆设防等级分类方法,从而确定抗爆安全等级。根据我国国情综合考虑建筑结构抗爆安全等级和爆炸超压强度等级,确定不同类型建筑结构的抗爆设防指标。建立了以建筑结构设防目标作为工程抗爆设计的基础原则,通过对以往爆炸事件的统计分析,确定不同爆炸超压荷载对人员伤亡和建筑结构损伤程度的设防目标,为建筑结构抗爆设防指标提供一种新的方法。Recently,explosive events occur on the building structure frequently,while no anti-explosive precautionary target for building structures was put forward in China. Based on the safety risk assessment,the average probability of explosion and the classification of explosion damage,the average explosion severity is determined. According to characteristics of the standard of building structure reliability design and the actual explosion event,a method for anti-explosion classification based on the importance of building structure is proposed to determine the anti-explosion safety level. According to national safety grade of building structure and explosion overpressure strength,the anti-explosion index of various building structures is determined. The basic anti-explosion design principle for building structure fortification is established. The statistical analysis of previous explosion events helps to determine the fortification targets concerning the casualties and building damage,which provides a new method for the anti-explosion index of building structure.

关 键 词：比例距离 爆炸强度等级 建筑结构爆炸安全等级 抗爆设防指标 

分 类 号：TU751.9[建筑科学—建筑技术科学]