School staircase guardrail height standard
3.9.1 There are no windows outside the platform or platform, such as the height of the ground from the ground lower, prone to child fall accident. This section requires protective measures when the window is less than 0.90 m above the ground. Effective protection height should ensure that the net height of 0.90m, from the floor (floor) surface 0.45m below the table, cross railings and other easy to cause unconscious climbing can be tread, should not be included in the high net windowsill.
General Principles for the Design of Civil Buildings GB 50352-2005
6.6.3 balconies, corridors, indoor corridors, inner patio, rooftop roofs and outdoor staircases shall be provided with protective railings and shall comply with the following provisions:
1 railings should be made of sturdy, durable materials and capable of withstanding the horizontal load specified in the load specification;
2 when the height of the air below 24m, the railing height should not be less than 1.05m, the height of 24m and 24m (including high-rise residential), the railing height should not be less than 1.10m;
Note: The height of the railing shall be calculated from the floor height of the floor or roof to the top of the railing armrest. If the width of the rail is greater than or equal to 0.22 m and the height is less than or equal to 0.45 m, it shall be calculated from the top of the step.
3 railings from the floor or roof 0.10m height should not be left blank;
4 railings, nursery, kindergarten, primary and secondary schools and children's special activities of the railing must be used to prevent children climbing the structure, when the use of vertical bar to do railings, the rod clearance should not be greater than 0.11m;
5 cultural and entertainment buildings, commercial services, sports buildings, landscape architecture, etc. to allow children to enter the activities of the place, when the use of vertical bar to do railings, the rod clearance should not be greater than 0.11m.
