【摘要】 易损度曲线是泥石流易损度评估的重要方法之一,但一直缺乏相应的承灾体泥石流冲击破坏的损失等级标准,定量化评估多采用直接赋值的方法。以西南地震区常用建筑形式——砖混建筑为研究对象,通过参考其他行业的损坏标准,结合泥石流冲击荷载实际情况,确定了砖混建筑受力墙体损坏等级标准。在此基础上,建立了基于模糊数学理论的砖混建筑泥石流冲击破坏评价方法,通过单项评判、权重计算和综合评判三个步骤,可以进行易损度计算。通过实例应用研究的验证,该方法较传统的直接赋值法定量化程度更高,能够避免指标在阀值附近的不合理现象。更多还原

【Abstract】 Vulnerability curve is one of the most effective methods for the estimation of elements vulnerability in debris flow. Due to the lack of damage standards in debris flow,specific value assigned directly is most used in traditional quantitative estimation. Taking brick and concrete building as the study object,which was widely used in south west region of China,this paper confirmed the damage standard of the wall of brick and concrete building with reference of relevant damage standard files and the real condition of debris flow attack. Then,the quantitative estimation method based on Fuzzy Mathematics Theory was established. With three steps,firstly individual judgment,secondly weight calculation,and thirdly final estimation,the vulnerability can be obtained. The conclusions could be made via the example: the quantitative estimation established in this paper could provide more specific value and avoid unreasonable phenomenon around the critical value comparing with the traditional one.更多还原