Sage Journals: Discover world-class research

Abstract

The effectiveness of crossties in six sets of large-scale reinforced concrete short columns under monotonic axial compression is evaluated experimentally. The primary variables were type of crosstie engagement, type of crosstie, and crosstie placement offset. It was observed that minor placement offset up to 20 mm between hooks of crossties and longitudinal steel bars does not bring unfavorable consequences in confinement. The crosstie hook engagement of both hoop and longitudinal steel bar is better than that engagement of the longitudinal steel bar alone, but it is difficult in installation. Crossties composed of two straight end-180-deg hook steel bars give the best performance among the types of crosstie and it is convenient to facilitate the fabrication of reinforcing cages. However, the effectiveness under cyclic loading needs further study.

Keywords

reinforced concrete column crosstie compression

Get full access to this article

View all access options for this article.

References

ABRI (2007). Preliminary Study of Axial Ductile Performance of Large-Scale Reinforced Concrete Columns, ABRI Report: 096301070000G2019, Ministry of the Interior, Taipei, Taiwan. (in Chinese)

ABRI (2008). Axial Ductile Performance of Large-Scale Reinforced Concrete Columns with Different Crosstie Details, ABRI Report: 097301070000G2016, Ministry of the Interior, Taipei, Taiwan. (in Chinese)

ACI Committee 318 (2008). Building Code Requirements for Structural Concrete (ACI 318M-08) and Commentary, American Concrete Institute, Farmington Hills, Michigan, USA.

Baumann

H.U.

(2002). Recent Advances in Reinforcement of Ductile Concrete Members and Shearwalls in Tall Earthquake Resistant Buildings, Baumann Research and Development Corporation, San Clemente, California, USA.

Chang

K.C.

Yin

Y.L.

Wang

J.C.

and Wang

B.S.

(2005). “Experimental study of spiral application to rectangular columns”, Engineering, Vol. 78, No. 3, pp. 101–124. (in Chinese)

Ghali

and Youakim

S.A.

(2005). “Headed studs in concrete: State of the art”, ACI Structural Journal, Vol. 102, No. 5, pp. 657–667.

Lukkunaprasit

and Sittipunt

(2003). “Ductility enhancement of moderately confined concrete tied columns with hook-clips”, ACI Structural Journal, Vol. 100, No. 4, pp. 422–429.

Y.L.

and Hwang

M.L.

(1999). “New configuration of lateral steel for RC columns”, Practice Periodical on Structural Design and Construction, ASCE, Vol. 4, No. 3, pp. 111–118.

Mobeen

S.S.

Elwi

A.E.

and Ghali

(2005). “Double-headed studs in shearwalls”, ACI Concrete International, Vol. 27, No. 3, pp. 59–63.

10.

Moehle

J.P.

and Cavanagh

(1985). “Confinement effectiveness of crossties in RC”, Journal of Structural Engineering, ASCE, Vol. 111, No. 10, pp. 2105–2120.

11.

Sezen

and Shamsai

(2008). “High-strength concrete columns reinforced with prefabricated cage system”, Journal of Structural Engineering, ASCE, Vol. 134, No. 5, pp. 750–757.

12.

Weng

C.C.

Yin

Y.L.

Wang

J.C.

and Liang

C.Y.

(2008). “Seismic cyclic loading test of SRC columns confined with 5-spirals”, Science in China Series E: Technological Sciences, Vol. 51, No. 5, pp. 529–555.

13.

Weng

C.C.

Yin

Y.L.

Wang

J.C.

Liang

C.Y.

and Lin

K.Y.

(2011). “Seismic cyclic loading test of RC columns confined with 5-spirals”, Structural Engineering, Vol. 26, No. 1, pp. 57–91. (in Chinese)

Experimental Evaluation of Crossties in Large Reinforced Concrete Columns under Pure Compression

Abstract

Keywords

Get full access to this article

References