介绍了基于性能的节点设计原则，研究了伸臂桁架与巨型柱连接节点、环带桁架螺栓拼接节点两类典型节点。

Secondly, the design of two typical joint of the mega frame, the joint of outrigger to super-column and the long bolt joint of the belt truss, were checked.

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对于那些已经吊装的桁架由于缺少靠近的通道，因此需要应用吊笼以提供螺栓连接和检验的安全通道。

Since there is no access to the installed truss, suspended cage is adopted to provide safe access for bolting and testing.

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