单层混凝土柱厂房地震现场安全鉴定量化模型研究

Safety assessment quantitative model for single-story reinforced concrete column workshop on post-earthquake field

震后受损建筑地震现场安全鉴定是一项紧急的抗震救灾工作,通常都是基于专家经验展开的。单层钢筋混凝土柱厂房作为一种常见的结构类型,在地震发生时也会发生不同程度的破坏。应急期单层钢筋混凝土柱厂房安全鉴定对于恢复工业生产、较少灾害损失有着重要的意义。本文根据以往震害现象,结合标准《地震现场工作第二部分:建筑物安全鉴定》(GB18208.2-2001)中的定性条文,提出了单层钢筋混凝土柱厂房震损状态鉴定分析层次结构图和各构件类及其细部震损,并对细部震损进行定量化赋值。通过对国标中相关的定性条文定量化,并应用两级模糊综合评判方法,最后建立了单层钢筋混凝土柱厂房安全鉴定数学模型。该模型应用简便,最大限度地减小了不同鉴定人员的鉴定结果差异。

Safety assessment of damaged buildings on post-earthquake field after earthquake is an urgent disaster relief work,which is usually based on experts’experience.Single-story reinforced concrete column workshop is a common structure,which will be damaged when earthquake occurs.Safety assessment of single-story reinforced concrete column workshop in emergency period is of great significance for restoring industrial production and reducing disaster losses.In this study,based on the qualitative provisions from the Post-earth-quake Field Works,Part 2:Safety Assessment of Buildings(GB18208.2-2001),combined with actual seismic damages,analysing hierarchy diagram on building damages identification of single-story reinforced concrete column workshop and details of component categories were presented.Also,the detailed seismic damage is quantified.By quantifying the relevant qualitative articles in the national standard and applying two level fuzzy comprehensive evaluation method,safety assessment mathematical model for single-story reinforced concrete column workshop was determined.The model is easy to use,which reduces the difference of identification results of different appraisers.