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Abstract

High strength concrete is often used in concrete structures such as bridges and high-rise buildings. An experimental test program was developed to examine the effects of spliced reinforcement in tension zones on the overall behavior of high strength concrete beams. Four design parameters were selected for this study including lap end shape (straight or bent), the number of shear stirrups, the percentage of steel cut off (25% and 50%), and the grade of steel reinforcement (A36 and A615). The effect of these four design parameters on the load-deflection behavior and cracking pattern were investigated utilizing fourteen high strength concrete beams with an average compressive strength of 97.7 MPa (14,170 psi). The beams were loaded such that the lap splice fell under the pure bending region. The load-deflection responses of beams and the crack patterns are reported in this paper.

Keywords

high-performance concrete silica fume bond strength lap splice

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References

ACI Committee 318 (2001). Commentary on Building Code Requirements for Reinforced Concrete, American Concrete Institute, Detroit, Michigan.

ACI Committee 363R (1992). State-of-the-Art Report on High Strength Concrete, American Concrete Institute.

ASTM C33–86 (1986). Standard Specification for Concrete, Annual Book of ASTM standards, Philadelphia.

ASTM C150–86 (1986). Standard Specifications for Portland Cement, Annual Book of ASTM standards, Philadelphia.

ASTM C494–86 (1986). Standard Specifications for Chemical Admixtures for Concrete, Annual Book of ASTM standards, Philadelphia, USA.

Azizinamimini

Stark

Roller

and Ghosh

(1993). “Bond performance of reinforcing bars embedded in high-strength concrete”, ACI Structural Journal, Vol. 90, No. 5, pp. 554–561.

Blick

R.L.

(1973). “Some factors influencing high strength concrete”, Modern Concrete, Vol. 36, No. 12, pp. 38–41.

British Standards Institution (1997). BS 8110–1: Structural Use of Concrete. Code of Practice for Design and Construction, London, UK.

Deutsche Institute Fur Normung E.V. (1988). DIN 1045: Concrete and Reinforced Concrete Design and Construction, Deutsche Institute Fur Normung E.V., Berlin, Germany.

10.

Gjörv

Monteiro

and Mehta

(1990). “Effect of condensed silica fume on the steel-concrete bond”, ACI Materials Journal, Vol. 87, No. 6, pp. 573–580.

11.

Hegab

(1998). Effect of Lap Splice on the Behavior of High Strength Concrete Beams, M.Sc. Thesis, Cairo University, Egypt.

12.

Housing & Building Research Center (1995). E.C.95: Egyptian Code of Practice for Reinforced Concrete, Housing & Building Research Center, Dokki, Giza, Egypt.

13.

Krajcinovic

(1989). Damage Mechanics, North-Holland, Netherlands.

14.

Lutz

L. A.

Mirza

S. A.

and Gosain

N. K.

(1993). “Changes to and applications of development and lap splice length provisions for bars in tension (ACI 318–89)”, ACI Structural Journal, Vol. 90, No. 4, pp. 393–406.

15.

NCSA (National Crushed Stone Association) (1975). High Strength Concrete: Manual of Concrete Materials Aggregates, National Crushed Stone Association.

16.

Neville

A. M.

(1981). Properties of Concrete, 3rd Edition, Pitman Publishing Limited, London, UK.

17.

Orr

D. M. F.

(1976). “Lap splicing of deformed reinforcing bars”, ACI Journal Proceedings, Vol. 73, No. 11, pp. 622–627.

18.

Rezansoff

Akanni

and Sparling

(1993). “Tensile lap splices under static loading: A review of the proposed ACI 318 code provisions”, ACI Structural Journal, Vol. 90, No. 4, pp. 374–384.

Experimental Study on the Effect of Spliced Reinforcement in High Strength Concrete Beams

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