A Comparison of Behavior of Concrete Filled Steel Tubular Columns in Standard Fire and Natural Fire

崔志强; 余红霞

doi:10.13409/j.cnki.jdpme.2012.02.016

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A Comparison of Behavior of Concrete Filled Steel Tubular Columns in Standard Fire and Natural Fire

更新时间：2025-12-11

- A Comparison of Behavior of Concrete Filled Steel Tubular Columns in Standard Fire and Natural Fire
- Vol. 32, Issue 2, Pages: 210-215+234(2012)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2012.02.016
  CLC： U398.9
- Published：2012
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[1]崔志强,余红霞.钢管混凝土组合柱在标准火与真实火中的行为比较[J].防灾减灾工程学报,2012,32(02):210-215+234.

崔志强, 余红霞. A Comparison of Behavior of Concrete Filled Steel Tubular Columns in Standard Fire and Natural Fire[J]. 2012, 32(2): 210-215+234.
[1]崔志强,余红霞.钢管混凝土组合柱在标准火与真实火中的行为比较[J].防灾减灾工程学报,2012,32(02):210-215+234. DOI： 10.13409/j.cnki.jdpme.2012.02.016.

崔志强, 余红霞. A Comparison of Behavior of Concrete Filled Steel Tubular Columns in Standard Fire and Natural Fire[J]. 2012, 32(2): 210-215+234. DOI： 10.13409/j.cnki.jdpme.2012.02.016.

摘要

以实际工程中常用的钢管混凝土组合柱为研究对象

通过ABAQU S大型有限元软件模拟钢管混凝土组合柱在标准火和真实火中的截面温度分布、应力、变形、破坏形态、耐火极限等力学行为。其中标准火选用ISO-834标准火模型

真实火采用欧洲规范Eurocode 1 Part 1-2中的参数火模型来近似模拟真实火灾的温度—时间关系。研究发现

钢管混凝土柱在两种火场环境中的行为差异很大

真实火中的冷却过程对钢管混凝土的破坏起重要的影响。基于本研究

还初步得到火灾过程中环境温度的升温速度、柱火灾荷载比等对钢管混凝土组合柱的抗火性能的影响。

Abstract

Concrete filled steel tubular（CFST） column

which has been widely used in real projects

was chosen as the research objects in this paper.A large-scale finite element analysis model of CFST using ABAQUS program was established to analyze the temperature distributions

stress

deformations

failure modes

fire resistance limit of CFST column in the ISO-834 standard fire and natural fire.Parametric temperature-time curves in Eurocode 1 Part 1-2 were used to approximate the temperature versus time relations in natural fire.The research shows that CFST columns behaves differently in natural fire from the standard fire.Based on the current analysis

the effects of the fire heating rate

load ratio

etc.on the fire resistance of CFST columns are also summarized.

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Keywords

references

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钢管混凝土柱防火保护层计算方法研究 [J]. 杨有福,韩林海. 工业建筑 . 2004(01)

ISO-834标准火灾作用后方钢管混凝土构件滞回性能试验研究 [J]. 林晓康,韩林海. 地震工程与工程振动 . 2003(04)

标准火灾作用后矩形钢管混凝土柱剩余承载力的研究 [J]. 韩林海,杨华,霍静思,杨有福. 工程力学 . 2002(05)

钢管混凝土柱防火保护层厚度实用计算方法研究 [J]. 杨有福,冯九斌,徐蕾,韩林海,经建生,杜兰萍. 钢结构 . 2001(06)

钢管混凝土柱的防火保护层厚度 [J]. 韩林海,徐蕾,冯九斌,经建生,杜兰萍. 消防科学与技术 . 2001(06)

火灾后钢—混凝土组合框架梁—柱节点的力学性能研究 [D]. 宋天诣. 清华大学 2010

钢管混凝土结构[M]. 科学出版社 , 韩林海著, 2004

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