[1]卜良桃,秦川.型钢活性粉末混凝土柱大偏压性能分析[J].深圳大学学报理工版,2019,36(No.6(599-724)):606-613.[doi:10.3724/SP.J.1249.2019.06606]
 BU Liangtao and QIN Chuan.Analysis of mechanical performance of steel reinforced reactive powder concrete columns under large eccentric loading[J].Journal of Shenzhen University Science and Engineering,2019,36(No.6(599-724)):606-613.[doi:10.3724/SP.J.1249.2019.06606]
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型钢活性粉末混凝土柱大偏压性能分析()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第36卷
期数:
2019年No.6(599-724)
页码:
606-613
栏目:
土木建筑工程
出版日期:
2019-11-20

文章信息/Info

Title:
Analysis of mechanical performance of steel reinforced reactive powder concrete columns under large eccentric loading
文章编号:
201906002
作者:
卜良桃秦川
湖南大学土木工程学院,湖南长沙 410082
Author(s):
BU Liangtao and QIN Chuan
School of Civil Engineering, Hunan University, Changsha 410082, Hunan Province, P.R.China
关键词:
结构工程 活性粉末混凝土 组合结构 大偏压试验 抗拉强度 弯矩增大系数 极限承载力
Keywords:
structural engineering reactive powder concrete composite structure large eccentric loading experiment tensile strength bending moment increase coefficient ultimate bearing capacity
分类号:
TU317.2;TU323.1
DOI:
10.3724/SP.J.1249.2019.06606
文献标志码:
A
摘要:
为了研究足尺型钢活性粉末混凝土(reactive powder concrete,RPC)柱大偏心受压力学性能,制作了6根截面尺寸为300 mm×350 mm,高度为3 000 mm的型钢RPC柱,进行大偏压承载力性能试验,观察受力过程及破坏形态,测得极限承载力、侧向挠度及截面应变.试验结果表明,该组合结构具有较高的承载力及良好的变形能力,受压区RPC基本符合平截面假定,柱的极限承载力随含钢率的增加而提高,随偏心距的增大而降低.基于平截面假定,考虑截面受拉区RPC拉应力的贡献,建立了足尺型钢RPC柱的极限承载力计算公式,可供工程设计时参考.
Abstract:
In order to study the mechanical performance of full-scale steel reactive powder concrete (RPC) columns under large eccentric loading, six steel RPC columns with a section size of 300 mm×350 mm and a height of 3 000 mm were fabricated for large-capacity bearing capacity performance tests, the force process and failure mode were observed, and the ultimate bearing capacity, lateral deflection and section strain were obtained. The test results show that the composite structure has high bearing capacity and good deformation ability, and the compression zone of RPC basically conforms to the flat section assumption, The ultimate bearing capacity of the column increases with the increase of the steel ratio and decreases with the increase of the eccentricity. Based on the assumption of the flat section, considering the contribution of the tensile stress of the RPC in the section tension zone, the calculation formula of the ultimate bearing capacity of the full-scale steel reinforced RPC column is established, which can be used as reference for engineering design.

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备注/Memo

备注/Memo:
Received:2019-04-01;Accepted:2019-06-27 Foundation:National Natural Science Foundation of China(51278187);China Association for Engineering Construction Standardization(2018-030) Corresponding author:Professor BU Liangtao.E-mail: plt63@126.com Citation:BU Liangtao,QIN Chuan.Analysis of mechanical performance of steel reinforced reactive powder concrete columns under large eccentric loading[J]. Journal of Shenzhen University Science and Engineering, 2019, 36(6): 606-613.(in Chinese)
更新日期/Last Update: 2019-11-30