GB 50500-2013 第3.1条
| **Appendix B.** | **Suspended ceiling (banquet hall/guest room)**: measured by the horizontal projected area as shown on the design drawings. **Deductions shall not be made for partition walls, inspection openings, wall-attached chimneys, column pilasters, and the area occupied by pipes**. **Deductions shall be made for the area occupied by independent columns with a single area >0.3m², light troughs, and curtain boxes connected to the ceiling**. |