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AS 5100.1:2017


Bridge design, Part 1: Scope and general principles

Provides requirements for the design of new bridges and structures such as retaining structures, deflection walls and crash walls, structures built over rail tracks, culverts, structural components related to tunnels, road sign and lighting structures, noise barriers and protection screens.
Published: 31/03/2017
Pages: 45
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Table of contents
Cited references
Content history
Table of contents
About this publication
1 Scope
2 Application
3 Normative references
4 Definitions
5 Notation
6 Matters for resolution before design commences
7 Alternative design methods and materials
8 Design philosophy
8.1 General
8.2 Design life
8.3 Limit states
8.3.1 General
8.3.2 Ultimate limit states (ULSs)
8.3.3 Serviceability limit states (SLSs)
8.4 Analysis methods
8.5 Design actions or loads
8.6 Design capacity or strength
8.7 Verification of limit states
8.8 Post-installed fasteners
8.9 Other considerations
9 Safety in design
10 Sustainability and climate change
10.1 General
10.2 Sustainability
10.3 Climate change adaptation
11 Waterways and flood design
11.1 General
11.2 Estimation of design floods
11.3 Debris
11.4 Stream improvement works
11.5 Piers and abutments
11.6 Secondary structures
12 Environmental impact
13 Geometric requirements
13.1 General
13.2 Rail bridges
13.3 Bridges over navigable waterways
13.4 Road bridge carriageway widths
13.5 Edge clearances for bridges without walkways
13.6 Horizontal clearances to substructure components of bridges over roadways
13.7 Vertical clearance at structures
13.8 Bridges over rail
13.9 Superelevation and crossfall on road bridges
13.10 Walkway width on road bridges
13.11 Pedestrian bridges
13.12 Pedestrian only subways
13.13 Cyclist path and shared paths
14 Road traffic barriers
14.1 Scope
14.2 General
14.3 Traffic barrier properties
14.4 Acceptance criteria for bridge traffic barrier types
14.5 Performance levels
14.5.1 General
14.5.2 No barrier
14.5.3 Low performance level barriers
14.5.4 Regular performance level barriers
14.5.5 Medium performance level barriers
14.5.6 Special performance level barriers
14.6 Barrier geometry
14.6.1 Traffic barrier types
14.6.2 Post and rail type barriers
14.6.3 Bridge approaches
14.6.4 End treatment
15 Collision protection
15.1 General
15.2 Collision from road traffic
15.3 Collision from rail traffic
15.3.1 General
15.3.2 Protection of supports for structures over rail
15.3.3 Frangible piers
15.3.4 Piers other than frangible piers
15.3.5 Abutments
15.3.6 Deflection walls
15.3.7 Underground rail, air space developments and similar situations
15.4 Collision from waterway traffic
16 Pedestrian and cyclist path barriers
16.1 General
16.2 Geometric requirements
16.2.1 No barriers
16.2.2 Barriers on the outside edge of pedestrian or cyclist path
16.2.3 Barriers between pedestrian/cyclist path and carriageway
16.3 Pedestrian protection barriers for bridges over electrified rail
16.4 Protection screens for objects falling or being thrown from bridges
17 Noise barriers
18 Drainage
18.1 Drainage of the carriageway
18.2 Detailing for drainage
18.3 Drainage of rail bridges
19 Access for inspection, maintenance and component replacement
20 Utilities
21 Skew rail bridges
22 Fire requirements
23 Road signs and lighting structures
23.1 General
23.2 Design life
23.3 Anchor bolts and baseplates
Appendix A
A1 Scope
A2 General
A3 Procedure
A4 Selection process for low, regular and medium performance level barriers
A4.1 General
A4.2 Adjustment to AADT
A4.2.1 General
A4.2.2 Adjustment factor for road type (RT) (see Table A1)
A4.2.3 Adjustment factor for road grade (GD) (see Figure A2)
A4.2.4 Adjustment factor for curvature (CU) (see Figure A3)
A4.2.5 Adjustment factor for deck height and under-structure (US) conditions (see Figure A4)
A4.2.6 Adjusted AADT
A4.3 Selection of barrier performance level
A4.4 Vehicles and traffic mix
A5 Criteria for special performance level barriers
Appendix B
Cited references in this standard
Bridge design, Part 3: Foundation and soil-supporting structures
Bridge design, Part 2: Design loads
Lighting poles and bracket arms — Recommended dimensions
Design for access and mobility — Extracts — Design rules for access by the disabled (Supplement to AS 1428-1977)
Manual of uniform traffic control devices, Part 2: Traffic control devices for general use
Content history
DR AS 5100.1:2015