• by admin
• 2022-12-07

What is sandwich panel for building?

Sandwich panels have become very common in buildings, and various organizations are also promoting the development of sandwich panels. It will only become more and more difficult to stick to the current habits. If you compare the building materials documents decades ago with the current literature, you will find that the number of sandwich components of any type is increasing rapidly. However, even the definition of "sandwich structure" applied to sandwich panels is still not easy.

Building sandwich panel is a structure consisting of alternative, different, simple or composite materials, which are assembled together and firmly fixed together to take advantage of the structural advantages of each material.

Sandwich panels are different from curtain walls that can constrain cells. Sandwich panels can be curtain walls, but not just curtain walls. If it is a curtain wall, the sandwich panel may or may not be. Although the idea of structural sandwich is not new, sandwich panels have not been widely used in buildings until recent decades. In the first important sandwich panel, various combinations of cement asbestos board coating and fiber board core.

Typically, they are used in conjunction with a framework. Therefore, the sandwich panel supports the load directly imposed on it, but does not support the full load of the building. This type is typical of early housing construction.

Most industrial and commercial uses of sandwich panels also include frames for sandwiches.

The main reason for using sandwich panels are the structural efficiency that can be achieved. The thin, hard and strong coating is tightly attached to the thick and light core. The geometry of this combination, coating material and core material can easily provide high strength and stiffness with very small weight or thickness. The thin, sturdy surface resists internal bending and edges, while the core resists cutting, and it stabilizes the surface to prevent bending.

As mentioned above, the sandwich panels currently used are only semi-structured. That is, the panel is integrated into the structural frame that carries most of the load, while the sandwich panel carries only the directly loaded load.

Generally, these sandwich panels are wall panels that only bear transverse loads. They transfer these loads to the main structural frame. In fact, it is a habit to expect this problem of sandwich panels in buildings. For many applications, architecture is an understanding that limits the use of sandwich panels. For lightweight structures, especially houses and one or two storey commercial or industrial buildings, there is no natural reason to believe that building sandwich panel should not bear all loads and eliminate structural frames.