Grates | Loading Specifications BS EN 124:1994

LOADING SPECIFICATIONS

Compliant with BS EN 124:1994

Understanding Loads Affecting Grates:

Static Loads refers to load applied vertically to the grating with no other movement, such as load from a stationary vehicle.

This is classified as in BS EN 124:1994 Test-loads Table:

Class	Test-load KN	Class	Test-load KN
A15	15	D400	400
B125	125	E600	600
C250	250	F900	900

Wheel-loads refer to the weight of the vehicle and its typical load depending on the type of the wheels. Pneumatic tyres spread the load like the test-block in the illustration and solid tyres post a greater point load, which is only recommended for Class E600 and F900. Vehicle movement, speed, braking and traffic frequency are the consolidated consideration of dynamic loads.

Selection Of Appropriate Load Class According To BS EN 124:1994

Group 1 - (Class A15)

Group 4 - (Class D400)

Areas strictly for pedestrians and pedal cyclists. House drains, pool decks, courtyards, park-walkways and pedestrian compounds within precincts.

Carriageways of roads, hard-standing areas for fire-engine access and parking areas for heavy vehicles. Generally for slow-moving vehicles not exceeding 11.5 tonnes in wheel-load.

Group 2 - (Class B125)

Group 5 - (Minimum Class E600)

Public footways and comparable areas, car porches and parks. Generally for slow-moving vehicles not exceeding 3 tonnes in wheel-load.

Areas imposing high wheel-loads such as docks, airfield pavements and heavy forklift loadings. Generally for slow-moving vehicles not exceeding 20 tonnes in wheel-load.

Group 3 - (Class C250)

Group 6 - (Minimum Class F900)

Used as curb-side grates in heavy vehicle parking areas and entrances of small precincts. Generally for slow-moving vehicles not exceeding 5 tonnes in wheel-load.

Areas imposing particularly high wheel-loads such as airport taxiway and vehicles with solid tyres. Generally for slow-moving vehicles exceeding 20 tonnes in wheel-load.