某热处理车间局部火灾后鉴定与修复

通过对某热处理车间局部火灾的检测、鉴定与加固,对火灾后结构的安全性进行了评定,并对受损部位提出了相应的处理方案。本工程典型之处在于火灾发生部位既有混凝土构件,也有钢结构构件,可供同行业人士参考。

钢结构建筑火灾扑救造成消防官兵伤亡的成因及对策

近年来,消防部队在灭火救援中多次发生官兵伤亡事例,尤其是扑救钢结构建筑火灾造成的伤害较大,引起了部队各级指战员的高度关注。本文介绍了钢结构建筑的发展、耐火性、火灾现状,以及钢结构的防火保护措施和工程应用情况,根据CECS 200-2006《建筑钢结构防火技术规范》,钢结构实施防火保护措施后的耐火极限及近期部队钢结构建筑火灾灭火救援分析,重点分析了当前消防部队灭火救援伤亡成因,阐述了消防部队在今后扑救钢结构火灾中的技术战术措施。

Damage Assessment, Repair and Field Test of Steel Lattice Shell after Fire

A real case of a steel lattice shell suffering a fire was studied. Based on the theory of field modeling, fire dynamic simulator (FDS) was used to identify the temperature field. The damage mechanism of the structure was determined by FEM analysis. After damage assessment, the shell was repaired with the pipe-encasement method. Finally, field test was employed to check the capacity of the structure after repair. The numerical study results indicate that the damage assessment agrees well with field inspection, verifying the accuracy of fire numerical simulation and FEM analysis. The field test results prove that the pipe-encasement method is secure and reasonable, and the repaired shell is safe.

钢结构建筑防排烟设计与有效措施——浅析热烟自动泄排窗的自然排烟作用

根据近年来大量出现的钢结构建筑和发生的钢结构建筑物火灾情况,对钢结构建筑的防排烟进行了分析探讨,对热烟自动泄排窗的防排烟作用和特点进行了介绍。