Curtain wall mounting structure capable of transmitting horizontal load and construction method thereof

The invention provides a curtain wall mounting structure capable of transmitting horizontal load and a construction method thereof. The curtain wall mounting structure comprises a sliding box, a sliding main beam and a curtain wall, wherein the sliding box is connected to a roof steel structure beam, the sliding box is provided with a through groove, the sliding main beam penetrates through the through groove, the sliding main beam and the sliding box are connected in a sliding mode, and the curtain wall is connected to the sliding main beam. When the curtain wall bears a horizontal load, the horizontal force can be effectively transmitted to the box body and the roof steel structure beam through the sliding box, when the upper structure and the lower structure of the curtain wall are telescopically deformed, the curtain wall can directionally move along with the sliding main beam and move relative to a roof steel structure, and glass is prevented from being crushed due to extrusion. 本发明提供一种可传递水平负荷的幕墙安装结构及其施工