Influence of Concrete Compaction on the Behavior of Concrete Filled Steel Tubes with Rectangular Sections

Abstract

Tests on sixteen concrete filled steel tubes to investigate the influence of concrete compaction methods on the section capacities of concrete filled steel tubes with rectangular sections are reported. The main objectives of these tests were twofold: firstly, to report a series of tests on composite stub columns under different concrete compaction methods; and secondly, to investigate the influence of concrete compaction on the section capacities and the modulus of elastic of concrete filled steel tubes with rectangular sections. It was found that better compaction of concrete resulted in higher section capacities and higher elastic moduli in concrete filled steel tubes. The tests showed the importance of good concrete compaction for concrete filled steel tubes with rectangular sections.

Keywords

Concrete Filled Steel Tubes Stub Column Sectional Capacity Modulus Concrete Compaction

References

ASCCS Seminar Report (1997). “Concrete Filled Steel Tubes-A Comparison of International Codes And Practices,” Innsbruck.

Bergmann

. (1995). “Design Guide for Concrete-Filled Hollow Section Columns under Static and Seismic Loading,” CIDECT, Verlag TUV Rheinland GmbH, Koln, Germany.

Virdi

K. S.

and Dowling

P. J.

(1980). “Bond Strength in Concrete Filled Steel Tubes,” IABSE Proceeding, P-33/80, pp.125–139.

Morishita

Tomii

and Yoshimura

(1979). “Experimental Studies on Bond Strength in Concrete Filled Circular Steel Tubular Columns Subjected to Axial Loads,” Transactions of Japan Concrete Institute, pp.351–358.

Morishita

Tomii

and Yoshimura

(1979). “Experimental Studies on Bond Strength in Concrete Filled Square and Octagonal Steel Tubular Columns Subjected to Axial Loads,” Transactions of Japan Concrete Institute, 1979, pp.359–366.

Morishita

and Tomii

(1982). “Experimental Studies on Bond Strength between Square steel Tube and Encased Concrete Core under Cyclic Shearing Force and Constant Axial Force,” Transactions of Japan Concrete Institute, Vol.4, 1982, pp.363–370.

Tomii

Yoshimura

and Morishita

(1980). “A Method of Improving Bond Strength in between Steel Tube and Concrete Core Cast in Circular Steel Tubular Columns,” Transactions of Japan Concrete Institute, Vol.2, pp.319–326.

Tomii

Yoshimura

and Morishita

(1980). “A Method of Improving Bond Strength in between Steel Tube and Concrete Core Cast in Square and Octagonal Steel Tubular Columns,” Transactions of Japan Concrete Institute, Vol.2, pp.327–334.

Khalil

H. S.

Karim

and Hassan

(1994). “Push-Out Resistance of Concrete Filled Tubes.” In: Proc. Of the Inter. Confer. On Steel-Concrete Composite Structures, Slovakia, pp.360–360.

10.

Han

L. H.

(2000). “The Influence of Concrete Compaction on the Strength of Concrete Filled Steel Tubes,” Advances in Structural Engineering-An International Journal, Vol.3, No.2, pp.131–137.

11.

GB2975 (1982). “Test Standard for Steel Material,” Chinese Planning Press (in Chinese).

12.

GBJ81–85 (1985). “Test Standard for Concrete Material,” Chinese Planning Press (in Chinese).

13.

GJB1019 (Part 1, 2000). “Design Code for Concrete Filled Steel Tubes with Square Sections,” (in Chinese).

14.

AISC (1994). “Load and Resistance Factor Design (LRFD) Specification for Structural Steel Buildings.” American Institute of Steel Construction, Inc., Chicago.

15.

Architectural Institute of Japan (AIJ) (1997). “Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures.”

16.

Eurocode 4 (EC4) (1992). “Design of Steel and Concrete Structures, Part 1. 1, General Rules and Rules doe Building.” DD ENV 1994-1-1:1992, British Standards Institution, London W1A 2BS.