| 钢材强度对预应力撑杆钢柱承载能力影响研究 |
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| 引用本文： | 梁策,杨浴儿,乔克,袁军.钢材强度对预应力撑杆钢柱承载能力影响研究[J].西南师范大学学报(自然科学版),2019,44(4):106-111. |
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| 作者姓名： | 梁策 杨浴儿 乔克 袁军 |
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| 作者单位： | 西南大学 工程技术学院, 重庆 400715 |
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| 基金项目： | 国家自然科学基金青年科学基金项目（51808070）. |
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| 摘 要： | 在普通钢柱中引入撑杆和预应力索可以明显提升结构的承载性能.运用有限元软件ABAQUS,对双层预应力撑杆柱进行了屈曲分析,对比在不同撑杆长度和拉索直径下,钢材强度对双层预应力撑杆柱稳定承载性能的影响.研究结果表明:结构的屈曲模态决定了钢材强度与结构承载性能之间的关系,结构发生对称屈曲时,提升钢材强度对结构稳定承载力并没有显著影响;当结构发生反对称屈曲时,钢材强度的提升使得结构承载性能明显增强.
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| 关 键 词： | 受压钢柱 屈曲分析 承载能力 稳定性能 |
| 收稿时间： | 2018/9/15 0:00:00 |
Investigation into Effect of Steel Strength on Buckling Strength of Prestressed Stayed Steel Columns |
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| LIANG Ce,YANG Yu-er,QIAO Ke,YUAN Jun.Investigation into Effect of Steel Strength on Buckling Strength of Prestressed Stayed Steel Columns[J].Journal of Southwest China Normal University(Natural Science),2019,44(4):106-111. |
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| Authors: | LIANG Ce YANG Yu-er QIAO Ke YUAN Jun |
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| Institution: | College of Engineering and Technology, Southwest University, Chongqing 400715, China |
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| Abstract: | The load carrying capacities of axial compressed steel columns can be significantly enhanced by introducing stays and crossarms. In this current work, ABAQUS has been adopted to analyze the stability behavior of prestressed stayed steel columns using linear and nonlinear buckling analysis. The effects of steel strength of the capacities of prestressed stayed column with different crossarm length and stay diameters have been investigated. It has been demonstrated that the effect of steel strength can be ignored when the buckling mode is symmetric, however, the load carrying capacity can be considerably improved by steel strength when the buckling mode is anti-symmetric. |
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| Keywords: | compressed steel column buckling analysis load carrying capacity stability behavior |
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