The purpose of this rule is to check that horizontal structures such as slabs are surrounded by vertical components, such as walls, railings and other vertical structures to prevent falling. If no vertical component exists on the edge of a horizontal component, another horizontal component needs to continue and the drop to the other horizontal component must not be more than specified.
The rule parameters are:
Platform Components to Check:
The purpose of the 'Platform Components to Check' Filter Parameter table is to allow you to select the horizontal components whose edges should be surrounded by vertical or adjacent landing components. It has a filter by default, which includes all the 'slabs' in the model.
Barrier Components to Check:
The purpose of the 'Barrier Components to Check' Filter Parameter table is to allow you to select vertical (barrier) components such as walls or railings that are supposed to prevent falling from horizontal components such as 'slabs'. It has two filters by default, which includes all the 'walls' and 'railings' in the model.
Landing Components to Check:
The 'Landing Components to Check' Filter Parameter allows you to specify components that can be adjacent to the edges of another horizontal component. Edges of horizontal components don't need to be covered by vertical components, if there are adjacent components continuing from that horizontal component. For example, a slab does not need a railing where there are stairs. It has filters by default, which includes all the 'slabs', 'sites' 'stairs' and 'ramps' in the model.
Barrier Dimensions Allowed:
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Minimum Barrier Total Height, Hmin: Here, you can specify the minimum height of the barrier component. It is calculated as the minimum required distance from top of horizontal component (e.g., slab) to top of barrier (vertical) component (e.g., wall or railing) to consider the vertical component to prevent falling.
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Maximum Horizontal or Vertical Gap between Barriers, Gmax: Here, you can specify the maximum horizontal or vertical gap that could exist between barrier components.
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Maximum Horizontal or Vertical Distance from Platform, Bmax: Here, you can specify the maximum gap between horizontal and barrier components. For example, there can be gap between the outdoor railing installed in a balcony.
Landing Dimensions Allowed:
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Maximum Distance to Landing, Dmax: Here, you can specify the maximum gap between horizontal and adjacent landing components. For example, 'the horizontal gap between two slabs on a floor' can be defined in this field.
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Maximum Fall, Fmax: Here, you can specify the maximum distance from top of horizontal component to top of an adjacent landing component. For example, the falling height between a slab (horizontal component) and a staircase (landing component) should not be too low.
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Minimum Landing Width, Wmin: Here, you can specify the minimum distance that adjacent components to land on must continue from the edge from horizontal component. There is a requirement that the adjacent component should have certain length which can be defined in this field. For example, a stair of a staircase that is adjacent to a slab should be according to the given dimension.
Analysing the results:
The rule does not get checked if the components defined in the 'Platform Components to Check' Filter Parameter are not found in the model.
The rule creates issues:
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if the barrier components are missing.
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if the minimum height of the barrier component is smaller than the specified height in the 'Minimum Barrier Total Height' field.
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if the 'maximum horizontal or vertical gap between the barrier components' exceeds the specified value.
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if the 'maximum horizontal or vertical distance from platform' exceeds the specified value.
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if the 'maximum distance to landing' exceeds the specified value.
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if the 'maximum fall' distance exceeds the specified value.
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if the 'minimum landing width' exceeds the specified value.
Rule report:
The rule does not have a report.
Rule tools:
The rule does not have any tools.