| TX型圆管相贯节点空间作用下的极限承载力分析 |
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| 引用本文： | 祝磊,石永久,王元清. TX型圆管相贯节点空间作用下的极限承载力分析[J]. 钢结构, 2004, 19(2): 20-24 |
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| 作者姓名： | 祝磊 石永久 王元清 |
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| 作者单位： | 清华大学,土木工程系,北京,100084;清华大学,土木工程系,北京,100084;清华大学,土木工程系,北京,100084 |
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| 摘 要： | 空间相贯管节点构造简捷 ,较多应用于大跨度空间结构 ,其受力状况较为复杂。运用有限元方法 ,分析了TX型圆管相贯节点在平面外支管受轴向荷载、平面内支管受平面外弯矩作用下的极限承载力 ,并利用圆环模型 ,结合非线性回归分析 ,推导了理论计算公式。
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| 关 键 词： | TX型圆管相贯节点 平面外弯矩 圆环模型 非线性回归分析 |
| 修稿时间： | 2003-10-25 |
ULTIMATE CAPACITY OF CIRCULAR TUBULAR TX-JOINTS UNDER MULTIPLANAR LOADS |
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| Zhu Lei Shi Yongjiu Wang Yuanqing. ULTIMATE CAPACITY OF CIRCULAR TUBULAR TX-JOINTS UNDER MULTIPLANAR LOADS[J]. Steel Construction, 2004, 19(2): 20-24 |
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| Authors: | Zhu Lei Shi Yongjiu Wang Yuanqing |
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| Abstract: | Multiplanar tubular joints are fabricated compactly and often applied in large-span space structures,but the failure modes are complex.With a finite element method,ultimate capacity of circular tubular TX-joints loaded by out-of-plane bending on the in-plane brace and axial forces on the out-of-plane braces was analyzed.The corresponding formulae were developed,based on the ring model and a nonlinear regression analysis. |
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| Keywords: | circular tubular TX-joints out-of-plane moment ring model nonlinear regression analysis |
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