Aluminum door and window accessories uses doors and windows made of aluminum alloy extruded profiles as frames, mullions and fans, referred to as aluminum doors and windows. Wood and plastic composite doors and windows with aluminum alloy as the base material of the stress bar (the bar that bears and transmits the self-weight and load), referred to as aluminum-wood composite doors and windows, aluminum-plastic composite doors and windows.
Glass curtain wall is also called Building curtain? A9? Qiaozhi?? OK? J gown rose capsule recovered to the bottom? Shan Xiaoxiao A А (6)? Saoxiao? Cang BA? Is it against me? Cute? Why don't you stop the residence? Is it a little obtrusive to buy the purslane Wei Wei Wei Yu? ?? Yingxiaoxiao, the disaster, the orchidism, stealing the dog, Miao Ridge? /p>
Both curtain wall and doors and windows belong to the building maintenance structure, and neither share the stress of the main structure, which makes qualitative doors and windows or curtain walls difficult. In order to ensure the appearance, many enterprises also need to consider saving costs. They often use the design of door and window materials to produce curtain wall effect. To some extent, it not only brings troubles to the construction acceptance, but also lays hidden dangers to safety.
In order to avoid the continuation of this kind of situation, the line standard "technical specification for glass curtain wall engineering" clearly defines the concept of glass curtain wall: composed of supporting structure system and panel, the external maintenance structure or decorative line structure that has a certain displacement capacity relative to the main structure and does not share the role of the main structure.
One point is mentioned here: it has a certain displacement capacity relative to the main structure. As the maintenance component of the support in the opening of the main structure, doors and windows cannot meet the ability of displacement relative to the main structure. In the design of curtain wall, the whole frame is hung on the outside of the main structure, and the realization of relative displacement can be ensured by designing structural measures such as expansion joints.
