配筋圆钢管混凝土轴心受压短柱试验研究与承载力分析

EXPERIMENTAL RESEARCH AND BEARING CAPACITY ANALYSIS OF AXIALLY COMPRESSIVE REINFORCED CONCRETE-FILLED STEEL TUBE SHORT COLUMN

1.
1. Key Laboratory of Reinforced Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China;
2.
2. School of Material and Architectural Engineering,Guizhou Normal University,Guiyang 550059,China

摘要: 在圆钢管混凝土柱内配置钢筋形成配筋圆钢管混凝土柱，可以进一步提高其承载能力，改善构件的塑性及延性。基于圆钢管混凝土的极限平衡理论，通过38个配筋圆钢管混凝土短柱轴压静载试验，揭示其受力机理和破坏形态，并对影响轴压承载能力的若干因素进行比较分析，探讨研究配筋圆钢管混凝土短柱轴压承载力计算方法，为后续研究和规范修订提供参考。
- 钢管混凝土 /
- 短柱 /
- 配筋 /
- 短柱试验 /
- 轴心受压承载力
Abstract: The axially compressive bearing capacity may be further enhanced,together with the plasticity and ductility also be improved by setting steel bars into circular concrete-filled steel tube column. Based on the limit equilibrium theory of concrete-filled steel tube column,the axially compressive static tests of 38 reinforced concretefilled steel tube short column specimens were carried out,in order to explore their bearing mechanism and failure modes. Some factors influencing the axial load-bearing capacity of the specimens are analyzed. The method of calculating the axial load-bearing capacity for this kind of short column is studied to provide a reference for the subsequent studies and the revision of correlative standards.
- concrete-filled steel tube /
- short column /
- reinforcement /
- short column test /
- bearing capacity under axial compression