Protective Fences Calculation

In areas that are intended to stay no more than two people are allowed to take as normative concentrated load equal to 400 N (40 kg), in turn attached both horizontally and vertically at any point along the length of the handrail. Harnesses fences rely on strength and resistance to a horizontal concentrated load at less than 700 N (70 kg) applied at any point along the height of fences in the middle of the span, and belay exterior, in addition to resistance to the action of a mass of 100 kg falling from a height of 1 m from the workplace in the middle of the span. The reliability coefficient for the load to the security and safety net protections should be take 1, 2. The value of bending handrail security fence under the design load should not exceed 0.1 m. The height of the protective fencing and insurance (the distance from the level of the workplace to the lowest point upper horizontal element) must be at least 1.1 m, the signal – from 0.8 to 1.1 m, inclusive. The distance between fixing points of safety and insurance barriers to sustainable design of the building or structure (the length of one Section fencing) shall not exceed 6.0 m, the signal – is allowed up to 12.0 m. The distance from the border to drop the height barriers should be for: external-protection and insurance – in the range 0.20-0.25 m – Interior of safety – at least 0.30 m;-signal – not less than 2.0 m. Allison Kanders takes a slightly different approach. .

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