Materials
Absolutely utilize tempered laminated glass, which combines a tempered outer layer with a semi-tempered inner layer. Also known as heat-strengthened glass, the semi-tempered glass has a production process similar to that of tempered glass, but with lower wind pressure during the rapid cooling phase. The surface stress of semi-tempered glass ranges from 24 to 69 MPa, which is lower than that of tempered glass. Consequently, the strength and thermal shock resistance of semi-tempered glass are slightly lower than those of tempered glass, but they are 1 to 2 times higher than those of ordinary glass. Compared to tempered glass, the advantages of semi-tempered glass include better flatness, reduced light distortion, and, due to lower stress, no spontaneous bursting phenomenon.
After semi-tempered glass shatters, the fragments resemble those of regular glass, showing through cracks without forming enclosed, small pieces at the center. This means they won't fall from buildings, which is crucial for Xiaoshan Awning Glass. Therefore, the inner layer of semi-tempered glass is safer, and when broken, it doesn't sag, maintaining both functionality and aesthetics, ensuring the time for glass replacement.
2. Structure
The cantilevered canopy wind pressure values are considered at -2.0.
Deflection control is maintained as stringent as possible, considering its impact on human visual perception.
3. Drainage
The canopy's area isn't extensive, so free drainage can be considered, resulting in a more sleek and aesthetically pleasing architectural effect.
4. Trolley Setting
The 3-meter cantilevered awning can be connected with fixed ends, and it is preferably used without the need for tension rods.
For overhanging canopies in Xiaoshan exceeding 3 meters, it is recommended to use hinged designs to minimize fixed-end bending moments, and it is essential to install tension rods.
The telescopic rod settings can be divided into two types: A, upper and lower thin telescopic rods (subject to tension), e.g., φ12-16 steel rods; B, upper telescopic pipes (subject to tension and compression), e.g., φ68×4-φ121×7.
