Easily configured to suit any application.
- Cycle Bridges
- Road Bridges
Easily configured to suit any application.
To save you some time, we’ve included an extract from the Austroads Guide To Road Design for Australia, the Australian Standard Bridge Design and the NZTA Bridge Manual so you can see at a glance what is required to keep people safe in public areas.
Austroads Guide To Road Design; Part 6A
5.5.3 The installation of a fence at the side of a path used by cyclists is desirable where:
there is a steep batter or large vertical drop located in close proximity to the path
the path is adjacent to an arterial road and it is necessary wto restrict cyclist access to the road
a bridge or culvert exists on a path
a hazard exists adjacent to a particular bicycle facility
cyclists are likely to be ‘blazing a separate trail’ at an intersection between paths or around a path terminal.
Australian Standard Bridge Design; Part 2
This Standard was prepared by the Standards Australia Committee BD-090, Bridge Design, to supersede AS 5100.2—2004.
This Standard is also designated as Austroads publication AP-G51.2-17.
The objectives of the AS(AS/NZS) 5100 series are to provide nationally acceptable requirements for—
(a) the design of road, rail, pedestrian and cyclist path bridges;
(b) the specific application of concrete, steel, timber and composite construction, which embody principles that may be applied to other materials in association with relevant standards;
(c) the assessment of the load capacity of existing bridges; and
(d) the strengthening and rehabilitation of existing bridges.
The objective of this Part (AS 5100.2) is to specify minimum design loads and load effects for road, rail, pedestrian and cyclist path bridges, and other associated structures.
The requirements of the AS(AS/NZS) 5100 series are based on the principles of structural mechanics and knowledge of material properties, for both the conceptual and detailed design, to achieve acceptable probabilities that the bridge or associated structure being designed will not become unfit for use during its design life.
Clause 12.5 Pedestrian and cyclist path barrier load
Pedestrian and cyclist path barriers shall be designed for the most extreme of the following loads:
(a) A load of 0.75 kN/m acting on the longitudinal rail or the top of the barrier simultaneously in a transverse and vertical direction.
(b) A load of 1.0 kPa acting in a transverse direction on the total barrier infill area, whether comprising baluster, mesh or solid.
( c) A single load of 0.6 kN acting over an area of 0.1 m x 0.1 m in a transverse direction away from the path on the infill area, whether comprising baluster, mesh or solid,
(d) Forces from wind load, water forces and debris or earthquake.
The deflection of a pedestrian or cyclist path barrier subject to the serviceability loading (a) to ( c) above shall not exceed-
(i) for longitudinal members ………………………………………………………… L/800; and
(ii) for posts ………………………………………………………………………………… h/300,
L = span of member between posts
h = height of the post above the base plate
In addition to the provisions above, where the relevant authority specifies that the barrier is to restrain crowds or people under panic conditions, the barrier shall be designed for the most extreme of the following loads:
(A) A load of 3.0 kN/m acting in a transverse direction away from the path simultaneously with a vertical load of 0.75 kN/m acting on the top rail; or
(B) A load of 1.5 kN/m acting in a transverse direction away from the path simultaneously with a vertical load of 0. 75 kN/m on any one longitudinal member; or
(C) A load of 1.5 kPa acting in a transverse direction away from the path on the total barrier infill area, whether comprising baluster, mesh or solid; or
D) A load of 1.0 kN acting over an area of 0.1 m x 0.1 m in a transverse direction away from the path on the infill area
The load effects from barrier loading shall be considered in combination with the serviceability pedestrian loading.
The load factors to be applied in calculating the pedestrian and cyclist path barrier loading shall be as given in Table 12.5.
Waka Kotahi (NZTA) Bridge Manual; Clause B6.4*
B6.4 Pedestrian, cyclist and equestrian barriers shall be designed for the most extreme of the following loads:
a. horizontal and vertical service loads of 1.75kN/m applied to the top rail
b. a horizontal service load of 1.5kN/m² applied to the gross area of the barrier
c. a point load of 0.5kN in any direction at any point
*Excluding where the road controlling authority requires the barrier to restrain crowds or people under panic conditions.