What is the width of the fire passage for the building?
Fire code for building design, GBJ 16-87, six chapter, fire lane and entrance to the plantThe road in zone 6.0.1 should consider the passage of fire engines, and the distance between roads should be no more than 160m. A fire passage through the building shall be provided when the length of the building along the street exceeds 150m or the total length exceeds 220m.Article 6.0.2 the fire lane through the building of the door, the height and width of not less than 4m; gate stack between the width of not less than 3.5m.
Article 6.0.3 of the buildings should be set for the passage of streets and the inner court (by staircase), the distance should be more than 80m.Article 6.0.4 factories and warehouses shall be provided with fire lanes. A a, B and C plant covers an area of more than 3000m2 or a B C warehouse covers an area of more than 1500m2, should set the fire ring road, if there are difficulties, along the two long side set the fire lane or the settings for the passage of a fire truck and a width of not less than 6m flat space the.
When the total reserves of a storage yard and storage tank area exceed the provisions of table 6.0.5, an annular fire lane shall be provided, or a flat open space with a width of not less than 6m and provided for fire engines shall be provided.Note: a flammable material storage yard with an area of more than 25000m2 or a combustible material storage yard with an area of more than 40000m2 should be added with ringsThe middle longitudinal and transverse fire lane communicated with the fire lane shall not exceed 150m.Article 6.0.6 more than 3000 seat gymnasiums, more than 2000 seat halls and public buildings covering an area of over 3000m2, there shall be an annular fire lane.The inner court closed section 6.0.7 of the buildings, such as the short side length of more than 24m, should be equipped with fire lane into the inner court.Article 6.0.8 a fire lane shall be provided for natural water sources and fire pools for fire engines.Article 6.0.9 of the fire lane width should not be less than 3.5m, over the road in case of pipe rack, Zhanqiao and other obstacles, the height of not less than 4m.Article 6.0.10 an annular fire lane shall have at least two lanes connected to other lanes. The end fire lane shall be provided with a return lane or a return field not less than 12m * 12m. The size of the return field used for large fire engines shall not be less than 15m * 15m.
