| 基于双剪统一强度理论的轴心受压钢管混凝土承载力的研究 |
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| 引用本文： | 赵均海, 顾强, 马淑芳. 基于双剪统一强度理论的轴心受压钢管混凝土承载力的研究[J]. 工程力学, 2002, 19(2): 32-35. |
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| 作者姓名： | 赵均海 顾强 马淑芳 |
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| 作者单位： | 1.西安建筑科技大学土木工程学院, 西安, 710055;2. 国营二六二厂, 西安, 710061;3. 长安大学建筑工程学院, 西安, 710061 |
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| 基金项目： | 国家自然科学基金资助(59779028) |
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| 摘 要： | 从双剪统一强度理论出发,推导出钢管混凝土核心混凝土抗压强度的计算公式,进行了钢管混凝土试件的轴心抗压试验,得出了其荷载变形曲线及极限荷载,并进行了钢管混凝土承载力的理论计算,所得理论结果与试验结果基本一致,说明双剪统一强度理论对于钢管混凝土的理论计算有非常好的适用性,为钢管混凝土的分析计算提供了一定的理论依据。
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| 关 键 词： | 钢管混凝土 双剪统一强度理论 核心混凝土 |
| 文章编号： | 1000-4750(2002)02-032-04 |
| 收稿时间： | 2000-08-20 |
| 修稿时间： | 2001-02-10 |
THE STUDY OF THE AXIAL COMPRESSIVE STRENGTH OF CONCRETE FILLED STEEL TUBE (CFST) BASED ON THE TWIN SHEAR UNIFIED STRENGTH THEORY |
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| ZHAO Jun-hai, GU Qiang, MA Shu-fang. THE STUDY OF THE AXIAL COMPRESSIVE STRENGTH OF CONCRETE FILLED STEEL TUBE (CFST) BASED ON THE TWIN SHEAR UNIFIED STRENGTH THEORY[J]. Engineering Mechanics, 2002, 19(2): 32-35. |
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| Authors: | ZHAO Jun-hai GU Qiang MA Shu-fang |
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| Affiliation: | 1.School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055;2. The State-owned No.262 Factory, Xi'an 710061;3. School of Civil Engineering, Chang'an University, Xi'an 710061 |
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| Abstract: | For strain-constrained concrete cylinders in CFST, formulae of compressive strength were presented based on the Twin Shear Unified Strength Theory. Axial compressive tests of CFST were conducted and curves of deformation versus limit load were obtained from the tests. Predictions from the derived formulae were compared with test results and satisfactory agreements were reached. It is concluded that the Twin Shear Unified Strength Theory is versatile in theoretical analyses of CFST. |
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| Keywords: | concrete filled steel tube twin shear unified strength theory strain-constrained concrete cylinders |
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