5） Deformation from Wind Pressure (according to GB 7106-88)
Deformation Inapection（L/300） |
Positive Pressure |
0.2kpa |
Negative Pressure |
-0.2kpa |
Safety Inspection（3seconds gust pressure） |
Positive Pressure |
5kpa |
Negative Pressure |
-5kpa |
Characteristics of Flammability
(File-resistance Aluminum Composite Panel)
The length of testing panel:1000mm
| Country |
Test Items |
Test Standardard |
Test Result |
| China |
Minimum value of remaining length after burning (mm) |
GB/T8625 |
420 |
Average value of remaining length after burning (mm) |
GB/T8625 |
450 |
Temperature of smoke ( ℃ ) |
GB/T8625 |
129 |
Height of the flame (mm) |
GB/T8626 |
15 |
Grade of smoke density |
GB/T8627 |
27 |
Uninflammable Grade B1 |
GB/T8624 |
B1 Class |
USA |
Flame Spread |
UBC No.8-1 ASTM E84-03 UL723,ANSI/NFPA No.225 |
Class 1 |
Smoke |
Structural Strengthlexural Strength Design
Strength design is made on the assumption that the bending strength of panel is totally dependent on that of aluminum skins, i.e. if the stress being put on the aluminum skin are in the permissible range of its bending strength, permanent deformation will not occur to the panel. On the basis of this assumption, the yielding strength of aluminum skin will be set as 15.5
kg/mm⒉
2) Deflection by Wind Load
The deflection of ALUTILE panels by wind load depends on the panel's thickness, size, and supporting condition etc. Also, the value of deflection under specific condition could be calculated by some simple formulations.
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