附加弯矩导致桅杆的后背主弦杆受拉，传统的螺栓连接方法显得薄弱。
The additional bending moment results in the pulling state of rear back rod of the mast and the conventional bolt connection seems to be very weak.
研究表明，无论支弦杆受拉或受压，随主弦杆拉力的增加，节点承载力逐渐降低。
The results show that the bearing capacity decreases gradually with the tension of chord increasing.
针对规范主弦杆受拉则不考虑主弦杆轴力变化对节点承载力的影响，进行主弦杆轴力变化对节点承载力影响的非线性有限元分析，并与规范计算值比较。
The effect of the chord tension on the bearing capacity of the spatial penetrated joint were studied by FEA, the local code and the design bearing capacity criteria.
针对规范主弦杆受拉则不考虑主弦杆轴力变化对节点承载力的影响，进行主弦杆轴力变化对节点承载力影响的非线性有限元分析，并与规范计算值比较。
The effect of the chord tension on the bearing capacity of the spatial penetrated joint were studied by FEA, the local code and the design bearing capacity criteria.
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