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Calculation of Axial Compression Performance and Bearing Capacity of Angle Steel Spiral Reinforcement Composite Confined Concrete Composite Columns

Yichun Gong

Article ID: 1052
Vol 3, Issue 1, 2019, Article identifier:

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Abstract

In order to study the axial compression performance of angle steel spiral rib composite confined concrete composite columns, monotonic static axial compression tests were carried out on 26 specimens of such composite columns and 3 specimens of angle steel confined concrete columns. The failure mode of the specimen was observed, and the bearing capacity and load-deformation curve of the specimen were obtained. Based on the failure mode, damage evolution, load-deformation curve and cross-section constraint stress distribution of the specimens during the whole stress process, the composite constraint mechanism and failure behavior of angle steel spiral reinforcement composite constraint concrete composite columns are analyzed. Based on Mander constitutive model, the calculation method of axial compressive bearing capacity of this kind of composite column is proposed by dividing different concrete constraint areas. The research results show that the axial compression failure process and shape of angle steel spiral rib composite confined concrete composite columns are similar to angle steel confined concrete columns, but the process of crack development and concrete spalling is slower. The load-deformation curve is more saturated and the damage development is slower. The bearing capacity, ductility and energy dissipation capacity have been significantly improved. The calculation results of the proposed axial compression bearing capacity calculation method are in good agreement with the test results.


Keywords

Angle steel confined concrete; Spiral ribs; Combined column; Axial compression test; Calculation of bear ing capacity

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References

Zhang Wenfu, Du Juan, Dong Qinghui, et al. Angle steel restrained high strength concrete deflection Experi-mental and Theoretical Study on Mechanical Properties of Short Columns under Compression [J]. Journal of Building Structures, 2013,34 (S1): 252-258

Ya ng Zhengyi. Discussion on the construction of encased concrete composite structure [J]. Electric Power Con-struction, 1993, 14(9): 46-49

Li Mingshun, Zhang Huicun, Zhang Shengxian, et al. Seismic behavior of joints in encased concrete frames [J]. Industrial Architecture, 1988(10): 4-10

Jiang Shaofei, Liu Zhiyang. Adaptability of Artificial Neural Network in Predicting Design Parameters of Steel-encased Concrete Frame Columns [J]. Journal of Civil Engineering, 1997, 30(1): 73-77

Li Dianping, Liu Ying. Finite element analysis of externally wrapped SRC columns subjected to unidirectional eccentric compression and bending [J]. Steel Structure, 2012, 27(12): 21-24

Zhang wenfu, Ji Jing, Lu huawei, et al. short axial compression of angle steel confined concrete A Study of Col-umn Mechanics Performance [J]. Journal of Architecture and Architecture, 2012,33 (4): 121-127

Zhang Huilin. Design of main power plant with encased concrete structure [J]. Industrial Architecture, 1990(5): 11-15

Kim C S, Park H G, Chung K S, et al. Eccentric axial load capacity of high-strength steel-concrete composite columns of various sectional shapes [J]. Journal of Structural Engineering, 2013, 140(4): 04013091

Eom T S, Hwang H J, Park H G, et al. Flexural test for steel-concrete composite members using prefabricated steel angles [J]. Journal of Structural Engineering, 2013, 140(4): 04013094

K im H G, Kim M H, Cho N G, et al. Experimental study on the compressive strength of y LRC composite columns [J]. Journal of Korean Society of Steel Construction, 2009, 21(5): 545-552

Hwang H J, Eom T S, Park H G, et al. Axial load and cyclic lateral load tests for composite columns with steel an-gles [J]. Journal of Structural Engineering, 2016, 142(5): 04016001

Campione G. Strength and ductility of RC columns strengthened with steel angles and battens [J]. Construction and Building Materials, 2012, 35(10): 800-807

Campione G. RC columns strengthened with steel angles and battens: experimental results and design procedure [J]. Practice Periodical on Structural Design and Construction, 2011, 18(1): 1-11

Hwang H J, Eom T S, Park H G, et al. Cyclic loading test for beam-column connections of concrete-filled U-shaped steel beams and concrete-encased steel angle columns [J]. Journal of Structural Engineering, 2015, 141(11): 04015020

Sheikh S A, Uzumeri S M. Strength and ductility of tied concrete columns [J]. Journal of the Structural Division, ASCE, 1980:106

Montuori R, Piluso V. Reinforced concrete columns strengthened with angles and battens subjected to eccentric load [J]. Engineering Structures, 2009, 31(2): 539-550

Mander J B, Priestley M J N, Park R. Theoretical stress-strain model for confined concrete [J]. Journal of Structural Engineering, 1988, 114(8): 1804-1826

Cai Siwei, Cai Min. Damage and fracture of concrete [M]. Beijing: People's Communication Publishing House, 2003: 100-102


DOI: http://dx.doi.org/10.18063/scr.v3i1.1052
(202 Abstract Views, 102 PDF Downloads)

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