THE CONTINUITY OF BEHAVIORS FOR VARIOUS FORMS OF CONCRETE FILLED STEEL TUBE MEMBERS UNDER AXIAL COMPRESSION
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摘要: 根据统一理论推断,对不同截面形式的钢管混凝土轴压短柱采用有限元方法进行分析,得到了圆形、方形、矩形和八边形截面轴压短柱的平均应力-应变全过程关系曲线。最后导得各种截面钢管混凝土轴压短柱的组合性能指标及承载力设计公式。研究结果表明,各种截面形式的钢管混凝土的性能变化是连续的。Abstract: According to the Unified Theory, the concrete-filled steel tube( CFST) columns with different sections subjected to axial compression are analyzed by FEM, whose mean stress-strain curves are also obtained. The results of analysis shows that the changes in behaviors for various forms of CFST members are continuous. And the composite strength standard and design values for various forms are given.
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Key words:
- concrete-filled steel tube /
- axial compression /
- various forms /
- continuity
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[2] 陈洪涛. 各种截面钢管混凝土轴压短柱基本性能连续性的理论研究:[博士学位论文]. 哈尔滨:哈尔滨工业大学,2001 钟善桐. 钢管混凝土结构. 哈尔滨:黑龙江科学技术出版社,1995 [3] Zhong Shantong,Zhang Sumei. Application and Development of Concrete-Filled Steel Tubes in High Rise Buildings. Advances in Structural Engineering,1999, 2(2):149~159
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