Why do high-rise buildings use glass curtain walls?

1, the curtain wall is required to resist temperature change.

When the outside temperature changes, the structure will shrink when it is cold and expand when it is hot. If no measures are taken, the structure will be bent in summer; Winter will break the structure. Therefore, the long pavement should be divided into joints, and the long building should be divided into several sections with temperature joints to reduce the influence of temperature changes.

2. Curtain wall is needed to resist earthquake disaster.

1995 hanshin earthquake and 1999 Taiwan Province chi-chi earthquake, the epicentre intensity was above 1 1 degree, masonry infilled walls and conventional glass windows were largely damaged, but curtain walls and even glass curtain walls were rarely reported to be damaged, and most of them were well preserved after the earthquake.

3. Curtain wall saves the cost of structure and foundation.

Building materials, such as steel and cement, are all materials with high energy consumption and high cost. Saving materials means saving energy consumption and resources.

Basic classification of extended data

Concealed frame glass curtain wall

The metal frame of the hidden frame glass curtain wall is hidden on the back of the glass, and the metal frame can't be seen outdoors. Hidden frame glass curtain wall can be divided into full hidden frame glass curtain wall and semi-hidden frame glass curtain wall, which can be horizontal or vertical.

Frame support

Frame-supported glass curtain wall is a glass curtain wall supported by the metal frame around the glass panel, which mainly includes:

Open-framed glass curtain wall

Open-frame glass curtain wall is a kind of glass curtain wall with exposed metal frame members on its outer surface. It takes the aluminum alloy profile with special section as the frame, and the glass panel is completely embedded in the groove of the profile. It is characterized in that the aluminum alloy profile itself has dual functions of skeleton structure and glass fixing.

References:

Baidu encyclopedia-glass curtain wall