EXPERIMENTAL STUDY ON REINFORCED CONCRETE COLUMNS WITH FINE GRAIN STEEL BARS UNDER ECCENTRIC COMPRESSION

Ge Wenjie; Zhang Jiwen; Cao Dafu; Wang Biyuan; Pan Linglong

doi:10.13204/j.gyjz201312013

Volume 43 Issue 12

Dec. 2014

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Ge Wenjie, Zhang Jiwen, Cao Dafu, Wang Biyuan, Pan Linglong. EXPERIMENTAL STUDY ON REINFORCED CONCRETE COLUMNS WITH FINE GRAIN STEEL BARS UNDER ECCENTRIC COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 74-77,87. doi: 10.13204/j.gyjz201312013

Citation:

Ge Wenjie, Zhang Jiwen, Cao Dafu, Wang Biyuan, Pan Linglong. EXPERIMENTAL STUDY ON REINFORCED CONCRETE COLUMNS WITH FINE GRAIN STEEL BARS UNDER ECCENTRIC COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 74-77,87. doi: 10.13204/j.gyjz201312013

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EXPERIMENTAL STUDY ON REINFORCED CONCRETE COLUMNS WITH FINE GRAIN STEEL BARS UNDER ECCENTRIC COMPRESSION

doi: 10.13204/j.gyjz201312013

1.
1. College of Civil Science and Engineering,Yangzhou University,Yangzhou 225127,China;
2.
2. Key Laboratory of ＲC and PC Structure of Ministry of Education,Southeast University,Nanjing 210096,China

Received Date: 2013-01-08
Publish Date: 2013-12-20

Abstract

Abstract

The tests of nine concrete columns reinforced with fine grain steel bars under eccentric compression were made，the effects of experimental parameters such as eccentricity distance，longitudinal compressive reinforcement ratio，concrete strength and slenderness ratio on their compression performance were studied. Components'failure processes were described; load-strain curves of concrete and steel bars and load-deformation curves were analyzed. Experimental results show that theoretic values of eccentric ＲC column ultimate bearing capacity，average crack spacing and maximal crack width calculated by current code for design of concrete structures are in accordance well with the experimental values. Bearing capacities of eccentric ＲC columns reinforced with HＲBF400 have enough safety factors and tends to conservatively while the yield strength of HＲBF400 was considered as 360 MPa. Under normal service state，maximal crack widths of large compression columns under shot-term load meet the requirement of the current code.
- concrete columns,
- fine grain steel bars,
- eccentric compression,
- experimental study

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References(11)

References

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