Fire resistance of fiber reinforced Concrete Filled Box Columns

2016 ◽  
pp. 33-38
Keyword(s):  
Reinforced Concrete ◽  
Fire Resistance ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Box Columns

scholarly journals FIRE-RESISTANCE OF HIGH STRENGTH FIBER REINFORCED CONCRETE

2007 ◽  
Vol 63 (3) ◽  
pp. 424-436 ◽  
Author(s):  
Tomohiro TAKANO ◽  
Takashi HORIGUCHI ◽  
Noboru SAEKI
Keyword(s):  
Reinforced Concrete ◽  
Fire Resistance ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
High Strength Fiber

Behavior of Eccentrically Loaded Plain and Steel Fiber Reinforced Concrete Filled Steel Box Columns

2013 ◽  
Vol 61 (3) ◽  
Author(s):  
Hanan Hussien Eltobgy ◽  
Ibrahim Galal Shaaban
Keyword(s):  
Reinforced Concrete ◽  
Steel Fiber ◽  
Element Model ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Steel Fiber Reinforced Concrete ◽  
Concrete Core ◽  
Code Of Practice ◽  
Rate Of Increase ◽  
Box Columns

The present study investigates the behavior of steel fiber reinforced concrete filled steel box columns (SFRCFSBC) targeting to enhance their strength. A nonlinear finite element model using ANSYS program has been developed to investigate the structural behavior of the inspected columns. The results obtained from that model has been compared with those calculated using Euro code (EC4), AISC/LRFD (2005) and the Egyptian Code of Practice for Steel Construction (ECPSC/LRFD 2007). The comparison indicated that the results of the model have been evaluated to an acceptable limit of accuracy. A parametric study was carried out to investigate the effect of wall thickness, column slenderness and percentage of steel fiber in concrete on the ultimate strength of composite columns. Confinement of the concrete core provided by the steel case was also investigated. It can be concluded from the results that a considerable increase in compressive and flexural strength may be gained by increasing the steel fiber percentage up to 4%. The highest rate of increase in strength for long columns was about 20% by using steel fiber percentage between 0.5% and 1.0%, while for short and medium columns was about 10% by using steel fiber percentage between 1% and 2%.

Effect of Fiber on Mechanical Properties and Fire Resistance of C100 Ultra High Strength Concrete

2014 ◽  
Vol 629-630 ◽  
pp. 245-251
Author(s):  
Liang Huo ◽  
Xi Qiang Lin ◽  
Guo You Li ◽  
Tao Zhang
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Reinforced Concrete ◽  
Fire Resistance ◽  
Elevated Temperatures ◽  
Steel Fiber ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Fiber Concrete

It used conventional techniques and materials prepared high strength fiber reinforced concrete whose strength class is above C100 and it studied the effect of fiber content on the mechanical properties and elastic modulus. It also studied the fire resistance of fiber reinforced concrete. Results suggest that the strength of 28d concrete is above 100MPa and the highest strength is 126.4MPa. Under the same ratio conditions, the greater the volume content of steel fiber concrete flexural strength, the splitting tensile strength is higher. The steel fiber volume only affect elastic modulus of concrete little. When it heats to 300 °C, the no fiber concrete comminuted burst while the fiber concrete does not damaged at elevated temperatures up to 300 °C and continue to heat up, the crushing damage occurs at about 460 °C. Has not been damaged concrete specimens at 300 °C, the quality have emerged about 3% decline, while the compressive strength increased by 35%-52%, the highest strength reached 180.3MPa.

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