|Table of Contents|

[1] Fu Qian Zhu Xiaojun Liang Shuting Yang Jian Li Xiangmin Xu Qingfeng Gao Mingzhu,. Experimental study on axial compressive behaviors of prefabricatedcomposite thermal insulation walls after single-side fire exposure [J]. Journal of Southeast University (English Edition), 2018, (2): 220-228. [doi:10.3969/j.issn.1003-7985.2018.02.012]
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Experimental study on axial compressive behaviors of prefabricatedcomposite thermal insulation walls after single-side fire exposure()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
Issue:
2018 2
Page:
220-228
Research Field:
Civil Engineering
Publishing date:
2018-06-20

Info

Title:
Experimental study on axial compressive behaviors of prefabricatedcomposite thermal insulation walls after single-side fire exposure
Author(s):
Fu Qian1 Zhu Xiaojun2 Liang Shuting1 Yang Jian1 Li Xiangmin3 Xu Qingfeng3 Gao Mingzhu1
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2 Architects & Engineers Co., Ltd., Southeast University, Nanjing 210096, China
3Shanghai Key Laboratory of Engineering Structure Safety, Shanghai Research Institute of Building Sciences, Shanghai 200032, China
Keywords:
prefabricated composite thermal insulation walls expandable polystyrene board fire exposure insulation layer post-fire axial compressive behavior
PACS:
TU317
DOI:
10.3969/j.issn.1003-7985.2018.02.012
Abstract:
The axial bearing capacity of prefabricated composite walls composed of inner and outer concrete wythes, expandable polystyrene(EPS)boards and steel sleeve connectors is investigated. An experimental study on the axial bearing capacity of four prefabricated composite walls after fire treatment is carried out. Two of the prefabricated composite walls are normal-temperature specimens, and the others are treated with fire. The damage modes and crack development are observed, and the axial bearing capacity, lateral deformation of the specimens, and the concrete and reinforcing bar strain are tested. The results show that the ultimate bearing capacity of specimens after a fire is less than that of normal-temperature specimens; when the insulation board thicknesses are 40 mm and 60 mm, the decrease amplitudes are 20.8% and 16.8%, respectively. The maximum lateral deformation of specimens after a fire is greater than that of normal-temperature specimens, and under the same level of load, the lateral deformation increases as the insulation board thickness increases. Moreover, the strain values of the concrete and reinforcing bars of specimens after a fire are greater than those of normal-temperature specimens, and the strain values increase as the thickness of insulation board increases.

References:

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Memo

Memo:
Biographies: Fu Qian(1988—), female, Ph.D. candidate; Zhu Xiaojun(corresponding author), male, doctor, professor-level senior engineer, 496380566@qq.com.
Foundation items: The National Key Research and Development Program of China(No.2016YFC0701703), the Natural Science Foundation of Higher Education Institutions of Jiangsu Province(No.2016TM045J), the Scientific Innovation Research of Graduate Students in Jiangsu Province(No.KYLX_0151).
Citation: Fu Qian, Zhu Xiaojun, Liang Shuting, et al. Experimental study on axial compressive behaviors of prefabricated composite thermal insulation walls after single-side fire exposure[J].Journal of Southeast University(English Edition), 2018, 34(2):220-228.DOI:10.3969/j.issn.1003-7985.2018.02.012.
Last Update: 2018-06-20