Full-range Analysis of Steel Reinforced Concrete Column Subjected to Fire

谭清华; 韩林海; 周侃

doi:10.13409/j.cnki.jdpme.2015.01.011

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Full-range Analysis of Steel Reinforced Concrete Column Subjected to Fire

更新时间：2025-12-11

- Full-range Analysis of Steel Reinforced Concrete Column Subjected to Fire
- Vol. 35, Issue 1, Pages: 63-68(2015)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2015.01.011
  CLC： U398.9
- Published：2015
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[1]谭清华,韩林海,周侃.火灾下型钢混凝土柱的受力全过程分析[J].防灾减灾工程学报,2015,35(01):63-68.

谭清华, 韩林海, 周侃. Full-range Analysis of Steel Reinforced Concrete Column Subjected to Fire[J]. 2015, 35(1): 63-68.
[1]谭清华,韩林海,周侃.火灾下型钢混凝土柱的受力全过程分析[J].防灾减灾工程学报,2015,35(01):63-68. DOI： 10.13409/j.cnki.jdpme.2015.01.011.

谭清华, 韩林海, 周侃. Full-range Analysis of Steel Reinforced Concrete Column Subjected to Fire[J]. 2015, 35(1): 63-68. DOI： 10.13409/j.cnki.jdpme.2015.01.011.

摘要

实际结构从正常使用到遭受火灾作用

至火灾后进行维修加固

其结构受力经历了常温、升温、降温和火灾后4个阶段（简称结构受力全过程）以及火灾升、降温作用阶段（简称火灾作用全过程）。基于上述结构受力和火灾作用的全过程

建立了全过程火灾作用下型钢混凝土柱力学性能分析的有限元模型

分析了全过程火灾作用下型钢混凝土柱的温度—时间关系、轴向荷载—位移关系和截面内力分布等。研究结果表明

不考虑外荷载和火灾升、降温共同作用得到的火灾后剩余承载力和对应的峰值位移结果偏于不安全;在结构受力全过程和火灾作用全过程中

型钢混凝土截面各材料之间发生了应力重分布。

Abstract

The practical building structure subjected to combined loading and fire is successive process from normal service to subjection to fire and strengthening

which includes the full-range loading with ambient temperature

heating

cooling and post-fire phases

and the full-range fire with heating and cooling.Based on the whole process loading and fire

a finite element analysis（FEA）model for steel reinforced concrete column（SRCC）under the full-range fire were established and validated by the corresponding tests.After that

based on the verified FEA model

the temperature distributions

the axial deformations and the internal force redistribution were analyzed.This is helpful to investigate the residual load bearing capacities of the SRC columns.The results show that without the combined loading and fire including heating and cooling phases

the post-fire residual load bearing capacities of the SRC columns and the corresponding peak displacement are non-conservative

and the internal forces redistribute in the section occurs under the full-range loading and fire.

关键词

Keywords

references

火灾后和加固后型钢混凝土柱的力学性能分析 [J]. 谭清华,韩林海. 清华大学学报(自然科学版) . 2013(01)

钢-混凝土组合结构抗火设计原理研究 [J]. 韩林海,宋天诣,谭清华. 工程力学 . 2011(S2)

组合结构耐火性能研究的部分新进展 [J]. 宋天诣,韩林海. 工程力学 . 2008(S2)

火灾后型钢混凝土柱、平面框架力学性能研究 [D]. 谭清华. 清华大学 2012

JGJ/T 138-2001. 型钢混凝土组合结构技术规程 [S]. 2001

钢-混凝土组合结构抗火设计原理[M]. 科学出版社 , 韩林海, 2012

钢结构及钢-混凝土组合结构抗火设计[M]. 中国建筑工业出版社 , 李国强等著, 2006

钢管混凝土结构[M]. 科学出版社 , 韩林海著, 2000

Concrete filled steel tube stub columns under combined temperature and loading [J] . Tian-Yi Song,Lin-Hai Han,Hong-Xia Yu. Journal of Constructional Steel Research . 2009 (3)

Effects of heating and loading histories on post-fire cooling behaviour of concrete-filled steel tubular columns [J] . Hua Yang,Lin-Hai Han,Yong-Chang Wang. Journal of Constructional Steel Research . 2007 (5)

Quantitative comparison of FDS and parametric fire curves with post-flashover compartment fire test data [J] . N.D. Pope,C.G. Bailey. Fire Safety Journal . 2005 (2)

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