2. According to People's Republic of China (PRC) national standard "General Principles for Civil Building Design" (GB50352-2005), the height of railings below 24m (equivalent to the height of multi-storey and low-rise buildings) should not be lower than1.05m, and the height of railings above 24m (equivalent to the height of high-rise and middle-high-rise residential buildings) should not be lower than 65438.
3. In order to protect the safety of children's lives, the railing of special activity places should adopt anti-climbing structure, and it is not suitable to make horizontal floral decorations, parapet waterproof materials and small bricks. When making vertical railings, the clear distance between railings should not be greater than 0. 1 1 m to prevent the head and body from falling through. "
4. At the same time, for the windowsill of airports such as stair platforms, it is stipulated in the general rules that "when there is a treadable part with a width greater than or equal to 0.22 m and a height less than or equal to 0.45 m at the bottom of the railing", in order to prevent adults from standing here and looking out, the height of the railing should be calculated from the top surface of the treadable part.
5. In kindergartens, primary and secondary schools and children's activity areas, in order to prevent children from climbing accidents, anti-climbing design should be adopted, and the distance between two columns should be less than 1 1cm when making columns.
6. In terms of height, if the free height of stairs exceeds 24m, the height of stair handrails should be at least1.1m; When the height is less than 24m, the height of stair handrail cannot be less than or equal to1.05m.
7. If it is a place where children are allowed to enter, such as entertainment, physical fitness, garden landscape, etc. Safety should be considered when making handrails. When vertical columns are also made, the distance between two columns should be less than 1 1cm.
Extended data:
design scheme
The beautiful curve of the spiral staircase makes the design of the spiral staircase beautiful and generous, and it will become a beautiful scenery in the living room after completion. For a narrow space, it will be a wise choice to install spiral stairs. The spiral staircase occupies the smallest area, and the staircase with 60 cm steps only needs an open space with a diameter of about 1 m3.
Simple and tough straight ladder: the design of attic stairs is the simplest, and the simple geometric lines are bright and tough. This kind of staircase occupies a large space and is rarely used in small apartments.
Space-saving L-shaped staircase: If the attic opening is small, it is recommended to choose a compact L-shaped attic staircase design. Its pedal length is only 60 cm, and the unique pedal design requires the left and right feet to travel alternately.
However, it should be noted that each pedal can only be stressed unilaterally, so it is recommended to choose a relatively strong plate. L-shaped ladders with corners are often used in small apartments. Don't underestimate this little detail, it can save a lot of space.
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China News Network-A 6-year-old boy fell from the corridor window on14th floor.