2-Architechture : 5-Railings/Handrails

27 May.,2024

 

2-Architechture : 5-Railings/Handrails

1. PROBLEM IDENTIFICATION

Unsafe railings.

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Hard to grip handrails.

No railings or handrails.

2. PLANNING PRINCIPLE

To install adequate railing, wherever needed for the comfort and safety of all people, especially those with mobility problems.

3. DESIGN CONSIDERATIONS

3.1 General

Safety guards or railings should be installed around hazardous areas, stairs, ramps, accessible roofs, mezzanines, galleries, balconies and raised platforms more than 0.40 m high.

On stairways, windows positioned less than 1.00 m from the landing should have railings.

Handrails should be installed to assist disabled persons in bathrooms and toilets (see Rest Rooms).

Spacing between the vertical and horizontal bars of railings should be narrow for the safety of children.

Handrails should not obstruct the path of travel.

3.2 Height (fig. 1) (1)

To facilitate use by ambulant disabled and elderly people, handrails should be mounted between 0.85 m and 0.95 m above the finished floor level.

For the benefit of wheelchair users, a second handrail can be mounted between 0.70 m and 0.75 m from the floor.

To facilitate use by children and short people, a third handrail can be mounted at a height of 0.60 m.

To guide sightless people using a long cane, a rail should be mounted at a height between 0.10 m and 0.15 m (fig. 1); or a low curb should be installed at a height between 50 mm and 75 mm (fig. 2). Low curbs also act as wheelstops.

3.3 Mounting

Railings should be securely attached to the wall or to a supporting structure so as to withstand heavy loads.

Railings should not end abruptly but extend to the floor or blend into the wall so as not to create a hazard for sightless people.

3.4 Form (fig. 3)

Handrails should allow a firm and easy grip.

Circular cross-sections with a diameter of 40 mm are preferable.

Sharp edges should be avoided.

3.5 Handrails for ramps and stairs

Handrails should continue uninterrupted (except for doorways) on both sides and around the landing.

Handrails should extend horizontally for a distance between 0.30 m and 0.45 m at the top and bottom of stairs and ramps, except in places where extensions could obstruct the pedestrian flow (fig.4).

If you are looking for more details, kindly visit accessible handrails.

For stairs or ramps more than 3.00 m wide, a continuous intermediate handrail could be provided (see Ramps; Stairs).

3.6 Wall-mounted handrails

The space between the handrail and the wall should be between 40 mm and 50 mm for smooth walls and 60 mm for rough textured walls (fig. 5).

Where handrails are fully recessed into walls, a space of at least 0.15 m should be allowed between the top of the rail and the top of the recess (fig. 6).

3.7 Tactile marking

For emergency exit stairs or ramps, a contrasting tactile strip at least 0.90 m long should be applied to the top and bottom edges of the handrail to alert the partially sighted.

3.8 Colour

A contrasting colour is recommended for handrails to alert people with sight problems.

4. EXISTING CONSTRUCTIONS

If existing railings and handrails do not comply with the above requirements, they should be modified or replaced.

Notes:

(1) Measurements are taken from the front of the tread.


Fig. 1

 


Fig. 2

 


Fig. 3

 


Fig. 4

 


Fig. 5

 


Fig. 6

Specifying Handrails for Greater Accessibility

The Equality Act states that buildings must be accessible to all, regardless of disability, age or gender. In this article we will be looking at the design considerations to permit accessibility for those with physical mobility issues. The focus will be on handrails to assist those who have trouble walking.

A large number of people, especially the elderly, have mobility difficulties without needing to use a wheelchair. These people may use walking sticks and will find handrails very helpful within the building. In addition, in healthcare buildings, one needs to consider patients recovering from illness and operations. These patients may be very unsteady on their feet and need to use handrails for support in the early days of recovery.

Installing handrails will allow those with limited mobility to use a building safely and without risk.

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