As a new form of structure,its major difficulties of installation lie in the erections of central mast,suspended cable,steel roof trusses and the verticality control as well as node assembly.

• 伞形钢屋盖是一种新型结构形式,结构安装的主要难点在于中心桅杆安装、悬索安装与张拉、钢屋架桁架组安装、垂直度控制、节点拼装等。