The latest specification railings railings handrail height
When the bottom of the railing has a width greater than or equal to 0.22m, and the height is less than or equal to 0.45m can be pedal parts, according to the normal people on the step, people are easy to set foot on and standing (not climbing), this time, From the floor or roof of the building, then the top of the railing armrest height will be lower than the height of the center of gravity, very unsafe, it should be from the top of the available parts of the calculation. Residential roof protection, six railing height layer and six below the following should not be less than 1.05m; seven and seven or more should not be less than 1.10m, taking into account the roof to find slope, waterproof, insulation thickness, from the structure Surface calculation is greater than 1.4m (the specific height depends on the thickness of the waterproof material) to meet the 1.05m or 1.10m requirements.
In the "residential design norms" and "Civil Design General" in the requirements of low-rise, multi-storey residential balcony railings should not be less than 1.05m high, high-rise, high-rise residential balcony railing net height should not be less than 1.10m. Some designers in the determination of the closed balcony design height that the balcony has been closed, the function of the same room, then the height can be designed according to the height of the windowsill to ensure that 0.90 meters can be, and that take for granted the practice does not meet the "residential design specifications" Section 3.7.3 requires that the enclosed balconies (panels) should also meet the requirements of the balcony railings. Mainly because the closed balcony did not change the human heart and the human body center of gravity requirements. Design practice is often to increase the inner area, pick out the north to the balcony as part of the kitchen, although the design and construction are closed balcony, but also should be considered 1.05 m high fence. Balcony is the balcony, the current closed balcony in the future may also be open, the necessary safety height can not be changed, in order to avoid the occurrence of security risks, other features of the balcony balustrade height should also be designed in accordance with the requirements of the house. The height of the balcony railings increases with the height of the building.
From the point of view of physics, the railing height should be higher than the center of gravity people have a sense of security. According to the "Civil Design General" introduced in 1980, China's 14 provinces of human measurement results: the average height of men in China is 1656.03mm, converted into the human body upright under the height of the center of gravity is 994mm, wearing shoes after the center of gravity height of 994 +20 = 1014mm The Therefore, in the "Civil Design General GB 50352-2005" is given in the balcony, verandah, interior corridors, inner patio, robe and outdoor staircase and other temporary altitude below 24m, the railing height should not be less than 1.05m , The height of the air at 24m and 24m (including high-rise residential), the railing height should not be less than 1.10m.
