Concrete-Filled Double Skin Steel Tubular Column with Hybrid Fibre Reinforced Polymer: Post Fire Repair

Foreword
Preface
Acknowledgements
Contents
Abbreviations
Symbols
1 Introduction
	References
2 Literature Review
	2.1 Concrete-Filled Double Skin Steel Tubular (CFDST) Columns
	2.2 Background on Fire Test of Structural Elements
		2.2.1 Fire Test
		2.2.2 Fire Test in Standards and Codes
		2.2.3 Fire Test in Previous Research Studies
		2.2.4 Fire Provision of Concrete-Filled Double Skin Steel Tubular (CFDST) Columns in Standards/Codes
		2.2.5 Fire Provision in Malaysia
	2.3 Behavior of Concrete-Filled Double Skin Steel Tubular Columns Exposed to Fire
	References
3 Post-fire Behavior of Concrete-Filled Double Skin Steel Tubular Columns
	3.1 Concrete
	3.2 Steel
	3.3 Concrete-Filled Steel Tubular (CFST) Columns and Concrete-Filled Double Skin Steel Tubular (CFDST) Columns
		3.3.1 Residual Strength, Stiffness and Ductility of Fire-Damaged CFST Columns
		3.3.2 Cross-Sectional Dimension
		3.3.3 Exposure Time
		3.3.4 Temperature Distribution of Concrete-Filled Double Skin Steel Tubular (CFDST) Columns
	3.4 Repair of Fire-Damaged Concrete-Filled Steel Tubular (CFST) Columns Using Fiber Reinforced Polymer (FRP)
	References
4 Temperature Distribution and Post-fire Behavior of Concrete-Filled Double Skin Steel Tubular Columns
	4.1 Physical Appearance After Fire Exposure
	4.2 Effect of Different Diameter and Fire Exposure Time Towards Concrete and Inner Steel Tube Temperature
		4.2.1 Time-Temperature Curve of Concrete-Filled Double Skin Steel Tubular (CFDST) Columns
	4.3 Effect of Thickness on Residual Strength Index, Secant Stiffness and Ductility Index
	4.4 Effect of Fire Exposure Time on Residual Strength Index, Secant Stiffness and Ductility Index
	References
5 Repair of Fire-Damaged Concrete-Filled Double Skin Steel Tubular Columns with Fiber Reinforced Polymer (FRP)
	5.1 Failure Pattern of Repaired Fire-Damaged Concrete-Filled Double Skin Steel Tubular (CFDST) Column
	5.2 Repaired of Fire-Damaged Concrete-Filled Double Skin Steel Tubular (CFDST) Columns with Single Layer of Fiber Reinforced Polymer (FRP)
		5.2.1 Effect of Fiber Reinforced Polymer (FRP) Wrap on Ultimate Load
		5.2.2 Effect of Fiber Reinforced Polymer (FRP) Wrap on Secant Stiffness
		5.2.3 Effect of Fiber Reinforced Polymer (FRP) Wrap on Ductility Index (DI)
	5.3 Repair of Fire-Damaged Concrete-Filled Double Skin Steel Tubular (CFDST) Column with Hybrid Fiber Reinforced Polymer (FRP)
	References
6 Conclusion and Recommendation
	6.1 Relationship Between Thickness of Outer Steel Tube and Maximum Temperature of Concrete
	6.2 Residual Strength of Concrete-Filled Double Skin Steel Tubular (CFDST) Columns After Fire Exposure
	6.3 Effectiveness of Repair Method Using Single and Hybrid Fiber Reinforced Polymer (FRP) on Fire-Damaged Concrete-Filled Double Skin Steel Tubular (CFDST) Columns
	6.4 Recommendation for Future Work
	Reference