The design of the curtain wall structure cannot only be considered statically, and the safety of the curtain wall can be guaranteed by analyzing the deformation and stress under the maximum load state.

Especially for the supporting structure of one side of the single-cable structure, the side and corner panel glass of the curtain wall is fixed to the rigid structure on one side, and the other side is fixed to the flexible structure. Due to the large deformation of the cable structure, it is fixed under the ultimate load. The front and back of the glass on one side of the flexible structure have the largest displacement, which produces an angle of 10° to 20° relative to the rigid knot, which results in the largest stress on the panel glass and the most easily damaged.

The following is an engineering damage case using a single cable support structure and traditional fixtures to fix the panel glass:

A project in Tianjin:

北京某工程：

A project in Chengdu:

Hengan's patented product—point-type non-porous glass curtain wall ball hinge fixture (Patent No.: ZL 2010 2 0505575.6). A hinge structure is adopted between the front and rear glands of the fixture and the panel glass. The center of the ball hinge is basically at the center of the thickness of the glass. According to the principle of large deflection of the glass deformation of the point-supported curtain wall, the glass is allowed to deform, and the stress of the glass will be greatly reduced, thereby reducing the thickness of the glass, saving engineering costs, and improving the safety of the curtain wall.

In single-cable curtain wall projects, the advantages of using spherical hinge fixtures are more obvious.

北京燕山档案馆：

北方国际大厦：

深圳岗厦大厦：

西宁建设厅：