| 钢构件整体稳定直接分析法研究现状及展望 |
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| 引用本文： | 刘占科,靳璐君,周绪红,马亚维. 钢构件整体稳定直接分析法研究现状及展望[J]. 建筑结构学报, 2021, 42(8): 1-12. DOI: 10.14006/j.jzjgxb.2020.C335 |
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| 作者姓名： | 刘占科 靳璐君 周绪红 马亚维 |
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| 作者单位： | 1. 兰州大学 西部灾害与环境力学教育部重点实验室， 甘肃兰州 730000；2. 兰州大学 土木工程与力学学院， 甘肃兰州 730000; 3. 重庆大学 土木工程学院， 重庆 400044 |
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| 基金项目： | 国家自然科学基金项目(51308272)。 |
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| 摘 要： | 钢构件整体稳定设计的基础理论不仅是结构设计的依据,也是钢结构直接分析法发展和完善的重要基础.以轴压构件、受弯构件和压弯构件为研究对象,对中国、美国、欧洲现行钢结构设计标准GB 50017-2017、ANSI/AISC 360-16、EN 1993-1-1∶ 2005中钢构件整体稳定(弯曲失稳、扭转失稳、弯扭失稳)设计的...
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| 关 键 词： | 钢构件整体稳定 基础理论 初始几何缺陷 构件直接分析法 研究现状 |
State-of-the-art on research of direct analysis method of steel members with global instability |
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| LIU Zhanke,JIN Lujun,ZHOU Xuhong,MA Yawei. State-of-the-art on research of direct analysis method of steel members with global instability[J]. Journal of Building Structures, 2021, 42(8): 1-12. DOI: 10.14006/j.jzjgxb.2020.C335 |
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| Authors: | LIU Zhanke JIN Lujun ZHOU Xuhong MA Yawei |
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| Affiliation: | 1. Key Laboratory of Mechanics on Disaster and Environment in Western China, the Ministry of Education of China, Lanzhou University, Lanzhou 730000, China;2. College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China;3. School of Civil Engineering, Chongqing University, Chongqing 400044, China |
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| Abstract: | The theory of global stability for steel members is not only the basis of structural design,but also the fundamental basis for the development and improvement of the direct analysis method of steel structures. Taking members in axial compression, members in bending and members in bending and compression as the research focus, the theory of global stability (flexural instability, torsional instability and flexural-torsional instability) for member design approaches was summarized, according to the Chinese standard (GB 50017—2017), the United States specification (ANSI/AISC 360-16) and Eurocode (EN 1993-1-1: 2005). Based on the theory of flexural instability for axial compression member with initial geometric imperfection, the influence of the initial geometric imperfection on the analytic process and the analytic results was revealed. The application of direct analysis method for steel members with global buckling was summarized from two aspects: the completeness of the calculation steps, and the completeness of the expressions. The state-of-the-art research of the direct analysis method were analyzed for steel members in axial compression, in bending and in both bending and compression. The existing problems were pointed out, and the follow-up research was prospected. |
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| Keywords: | steel member with global instability basic theory initial geometric imperfection direct analysis method of members state-of-the-art |
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