Thermal Properties and Heat Transfer in Concrete Filled Steel Tube Reinforced Concrete Columns Exposed to Fire

In this paper, temperature field analysis of concrete filled steel tube reinforced concrete columns in fire has been carried on. A finite element model for concrete filled steel tube reinforced concrete columns in fire is developed by ABAQUS. The cross-sectional temperature field distribution regularity of concrete filled steel tube reinforced concrete columns in fire has been obtained. Parameter analysis such as fire duration time and steel ratio on the column section temperature field is conducted, and this provide the reference for the further analysis of concrete filled steel tube reinforced concrete columns.

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Preliminary Analysis of Concrete Filled Steel Tube Reinforced Concrete Columns under Axial Compression after Exposure to Fire

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.578-579.772 ◽

2014 ◽

Vol 578-579 ◽

pp. 772-775

Author(s):

Wan Qing Yu ◽

Qing Xin Ren ◽

Lian Guang Jia

Keyword(s):

Reinforced Concrete ◽

Axial Compression ◽

Theoretical Study ◽

Concrete Columns ◽

Steel Tube ◽

Element Analysis ◽

Reinforced Concrete Columns ◽

Concrete Filled Steel Tube ◽

Composite Columns ◽

Fea Model

In this paper, a further research has been carried on mechanical properties of concrete filled steel tube reinforced concrete columns after exposure to fire. A finite element analysis (FEA) model for concrete filled steel tube reinforced concrete columns after exposure to fire under axial compression is developed by ABAQUS. The temperature of cross-section element after exposure to fire has been obtained. The FEA model of temperature field is then used to investigate the mechanism of such composite columns further. Influences of parameters on Load-bearing Capacity such as fire duration time and steel ratio were analyzed. The work in this paper provides a basis for further theoretical study on concrete filled steel tube reinforced concrete columns after exposure to fire.

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COMPRESSION BEHAVIOR OF REINFORCED CONCRETE COLUMNS TRANSVERSELY REINFORCED BY BELLOWS SQUARE STEEL TUBE

Journal of Structural and Construction Engineering (Transactions of AIJ) ◽

10.3130/aijs.61.73_1 ◽

1996 ◽

Vol 61 (482) ◽

pp. 73-82

Author(s):

Takashi NOGUCHI ◽

Masahide TOMII

Keyword(s):

Reinforced Concrete ◽

Concrete Columns ◽

Steel Tube ◽

Reinforced Concrete Columns ◽

Compression Behavior ◽

Square Steel Tube

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Experimental Study on Seismic Performance of RC Composite Core Walls with Steel Tube-Reinforced Concrete Columns and Concealed Steel Trusses under Eccentric Horizontal Loading

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.163-167.2267 ◽

2010 ◽

Vol 163-167 ◽

pp. 2267-2273 ◽

Cited By ~ 1

Author(s):

Hong Ying Dong ◽

Wan Lin Cao ◽

Jian Wei Zhang

Keyword(s):

Reinforced Concrete ◽

Seismic Performance ◽

Load Capacity ◽

Concrete Columns ◽

Steel Tube ◽

Reinforced Concrete Columns ◽

Deterioration Process ◽

Combined Action ◽

Process Energy ◽

Steel Trusses

Two 1/6 scale core walls, including one RC core wall with steel tube-reinforced concrete columns and concealed steel trusses and one conventional RC core wall, were tested under eccentric horizontal cyclic loading. The load-capacity, ductility, hysteresis characteristics, stiffness, stiffness deterioration process, energy dissipation and damage characteristics of the two specimens were compared and discussed in this paper. It shows that the seismic performance of the RC core walls under combined action could be improved by setting the concealed steel trusses in the walls and using the steel tube-reinforced concrete columns as the boundary elements.

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