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Author:

Zhang, Chao (Zhang, Chao.) | Wang, Guang-Yong (Wang, Guang-Yong.) | Xue, Su-Duo (Xue, Su-Duo.) (Scholars:薛素铎) | Yu, Hong-Xia (Yu, Hong-Xia.)

Indexed by:

Scopus SCIE

Abstract:

This paper presents an experiment study of the post-fire behavior of five SRC columns under combination of axial eccentrical loading and fire. The experiment phenomena and mechanical response of the SRC column specimens during experiment, specifically loading, heating, cooling and post-fire loading were observed. The residual load bearing capacity, failure modes and vertical deformation were studied. With the test program, the effects of parameters such as the load ratio, the fire duration time and the steel ratio were studied. It is shown that the effects of temperature delay become more obvious with the increase of the depth from the heated surface. Some of the SRC column specimens failed during the cooling phase. For other specimens residual deformations were observed when the furnace temperature decreased to ambient temperature. The influence of some parameters including the load ratio, the fire duration time and the steel ratio on the post-fire load bearing capacities was discussed. It can be concluded that the residual load bearing capacity of the SRC columns decreases with the increase of the fire duration time and the load ratio, and increases with the increase of the steel ratio. Finally, a finite-element analysis model was developed to simulate the behavior of the tested SRC columns.

Keyword:

steel reinforced concrete (SRC) standard fire finite-element analysis model cooling phase residual load bearing capacity

Author Community:

  • [ 1 ] [Zhang, Chao]Beijing Univ Technol, Coll Architectural & Civil Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Xue, Su-Duo]Beijing Univ Technol, Coll Architectural & Civil Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Guang-Yong]China Acad Bldg Res, Beijing 100013, Peoples R China
  • [ 4 ] [Yu, Hong-Xia]Arup Int Consultants Shanghai Co Ltd, Jing Guang Ctr, Beijing Branch Room 3008, Beijing 100020, Peoples R China

Reprint Author's Address:

  • [Wang, Guang-Yong]China Acad Bldg Res, Beijing 100013, Peoples R China

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Source :

INTERNATIONAL JOURNAL OF STEEL STRUCTURES

ISSN: 1598-2351

Year: 2016

Issue: 2

Volume: 16

Page: 425-439

1 . 5 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:166

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 12

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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