RESEARCH ON BRACE-FRAME JOINTS OF HIGH-RISE STEEL STRUCTURES
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摘要: 对高层钢结构经常采用的一种支撑连接节点进行研究。通过力学机制解析,指出此种节点存在承载能力不足的缺陷。采用数值分析方法,建立27个参数模型,根据分析结果,给出节点极限承载力与截面宽高比、翼缘宽厚比、腹板高厚比等各参数的关系,验证此节点承载能力不足的缺陷。最后给出此种支撑连接节点的改进措施。Abstract: One typical brace-frame joint usually used in the high-rise steel structures was researched by the mechanics analysis and numerical analysis method in the paper.Based on the mechanics analysis,the defect of bearing capacity was discussed.Finite element analyses were conducted on 27 joints of various parameters influencing joints behavior,such as section width-to-height ratio,flange width-to-thickness ratio,and web depth-to-thickness ratio.Based on the result of the numerical analysis,the defect was verified.Finally an improvement measure was given.
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Key words:
- high-rise structure /
- steel frame /
- brace /
- joint /
- numerical analysis
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[2] GB 500112010 建筑抗震设计规范[S]. 刘其祥.多高层房屋钢结构梁柱刚性节点的设计建议[J].建筑结构,2003,33(9): 3-7. [3] 01SG519 多高层民用建筑钢结构节点构造详图[S]. [4] 孟宪德,陈以一,杜纯领.圆钢管销铰连接中端板的受力性能和强度计算[J].建筑结构,2009,39(5): 80-83. [5] Lee M M K.Strength,Stress and Fracture Analyses of OffshoreTubular Joints Using Finite Elements [ J ].Journal ofConstructional Steel Research,1999,51(3): 265-286. [6] 施刚,石永久,王元清.钢框架梁柱端板连接的非线性有限元分析[J].工程力学,2008,25(12): 79-85.
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