Experimental Investigation on the Fire Resistance Performance of L Special-Shaped Steel Reinforced Concrete Columns

Author:

Gao Li Tang1,Gao Yun Fei1,Yang Zhi Xin1,Shan Qi Yun1,Gao Gang1

Affiliation:

1. Qingdao Technological University

Abstract

Four full-scale SRC columns with special-shaped cross section were experimentally investigated in fire following ISO834 standard heating process and were implemented in the compression test after fire .The section temperature field after two hours of fire, deformation laws under fire and the mechanical behaviors after fire were got. Find: (1) Bond slips between concrete and steel were small which indicates that concrete and steel can work together. (2) Reasonable way with steel cross-section had a significant effect on the mechanical properties of columns. (3) The two sides of SRC special-shaped column were under fire conditions, sections were damaged. When the load was at the centre of the cross section, columns were in the state of axial compression before fire and the state of eccentric compression after fire.

Publisher

Trans Tech Publications, Ltd.

Reference7 articles.

1. Minggui Wang, Liruo Zhang, Shiyou Tan. Steel special-shaped column associated bending buckling. Steel structure. 2006 21(4): 35-37.

2. China Ministry of Construction. 15, plan of the National Building steel industry and the 2010 Development Plan [J] the housing industry,2000(9):5-9.

3. Technical Specification for concrete structures JGJl49 - 2006 Beijing: China Building Industry Press, (2006).

4. Zongping, Chen, XueJian Yang, HongTie Zhao, The experimental study of steel reinforced concrete special shaped columns in seismic performance [ J ]. Journal of building structures, 2007, 28(3): 53- 61.

5. Faris Ali, David O/ Conner. Structural Performance of Rotationally Restrained Steel Columns in Fire. Fire Safety Journal, 2011, 36: 679-691.

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