1.0.1 Following the principle to be safe, durable, applicable, environmental-friendly, economic and shapely, this Specification is laid down to regulate the design of highway steel bridge, improve the design capability and assure engineering quality.
1.0.2 This Specification is applicable to the design of the bridge with steel structure and the steel structure of bridge for all levels of highway.
1.0.3 For this Specification, design is carried out with the design expression of partial factor, using the probability theory-based ultimate design method.
1.0.4 Highway steel bridges shall have durability design--for extra-large, large and medium bridges, the major structure shall be designed as per a service life not less than 100 years; for small bridge on motorway, Class I highway and Class II highway, it should also be designed as per a service life not less than 100 years.
1.0.5 Highway steel bridges shall consider the design conditions and perform appropriate ultimate design, as specified in "General Specifications for Design of Highway Bridges and Culverts" (JTG D60-2015).
1.0.6 The design of highway steel bridge shall propose requirements for manufacture, transport, installation, maintenance and management, and select appropriate structure form, should adopt standardized and generalized structural units and members, and shall adopt such construction and connection that are easy for fabrication, erection, inspection and maintenance.
1.0.7 Highway steel bridge design shall meet the requirements of the current applicable national and professional standards, besides this Specification.
Foreword i
1 General
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Materials and Design Indexes
3.1 Materials
3.2 Design Indexes
4 Structural Analysis
4.1 Structural Analysis Model
4.2 Structural Strength, Stability and Deformation Calculation
5 Member Design
5.1 General
5.2 Axial Load-bearing Member
5.3 Flexural Member
5.4 Tension-flexural and Compression-flexural Members
5.5 Anti-fatigue Design
6 Connection Structures and Calculation
6.1 General
6.2 Welded Connection
6.3 Bolted/Riveted Connection
7 Steel Plate Beam
7.1 General
7.2 Flange
7.3 Web
7.4 Longitudinal and Transverse Bracing System
8 Steel Box Beam
8.1 General
8.2 Orthotropic Steel Bridge Deck
8.3 Flange Plate
8.4 Web
8.5 Diaphragm Plate
9 Steel Trussed Beam
9.1 General
9.2 Bar
9.3 Gusset Plate
10 Steel Pipe Structure
10.1 General
10.2 Structure Requirements
10.3 Calculation Regulation
11 Steel and Concrete Composite Beam
11.1 General
11.2 Calculation of Ultimate State Bearing Capacity
11.3 Calculation of Normal Service Condition
11.4 Design of Connections
11.5 Structure
12 Steel Tower
12.1 General
12.2 Structure Requirements
13 Cable System
13.1 General
13.2 Structure Design
14 Pavement of Steel Deck
15 Protection and Maintenance Design
16 Support and Expansion Device
16.1 Support
16.2 Expansion Device
Appendix A Overall Stability Reduction Factor of Axial Compression Members
Appendix B Elastic Buckling Coefficient of Stiffened Compression Plate
Appendix C Fatigue Details
Appendix D Calculation Method of Damage Equivalent Coefficient
Appendix E Calculation of Tear Strength, Shear Stress and Normal Stress of Gusset Plate
Appendix F Calculation of Effective Width of Composite Beam Flange
Explanation of Wording in This Specification
1.0.1 Following the principle to be safe, durable, applicable, environmental-friendly, economic and shapely, this Specification is laid down to regulate the design of highway steel bridge, improve the design capability and assure engineering quality.
1.0.2 This Specification is applicable to the design of the bridge with steel structure and the steel structure of bridge for all levels of highway.
1.0.3 For this Specification, design is carried out with the design expression of partial factor, using the probability theory-based ultimate design method.
1.0.4 Highway steel bridges shall have durability design--for extra-large, large and medium bridges, the major structure shall be designed as per a service life not less than 100 years; for small bridge on motorway, Class I highway and Class II highway, it should also be designed as per a service life not less than 100 years.
1.0.5 Highway steel bridges shall consider the design conditions and perform appropriate ultimate design, as specified in "General Specifications for Design of Highway Bridges and Culverts" (JTG D60-2015).
1.0.6 The design of highway steel bridge shall propose requirements for manufacture, transport, installation, maintenance and management, and select appropriate structure form, should adopt standardized and generalized structural units and members, and shall adopt such construction and connection that are easy for fabrication, erection, inspection and maintenance.
1.0.7 Highway steel bridge design shall meet the requirements of the current applicable national and professional standards, besides this Specification.
Contents of JTG D64-2015
Foreword i
1 General
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Materials and Design Indexes
3.1 Materials
3.2 Design Indexes
4 Structural Analysis
4.1 Structural Analysis Model
4.2 Structural Strength, Stability and Deformation Calculation
5 Member Design
5.1 General
5.2 Axial Load-bearing Member
5.3 Flexural Member
5.4 Tension-flexural and Compression-flexural Members
5.5 Anti-fatigue Design
6 Connection Structures and Calculation
6.1 General
6.2 Welded Connection
6.3 Bolted/Riveted Connection
7 Steel Plate Beam
7.1 General
7.2 Flange
7.3 Web
7.4 Longitudinal and Transverse Bracing System
8 Steel Box Beam
8.1 General
8.2 Orthotropic Steel Bridge Deck
8.3 Flange Plate
8.4 Web
8.5 Diaphragm Plate
9 Steel Trussed Beam
9.1 General
9.2 Bar
9.3 Gusset Plate
10 Steel Pipe Structure
10.1 General
10.2 Structure Requirements
10.3 Calculation Regulation
11 Steel and Concrete Composite Beam
11.1 General
11.2 Calculation of Ultimate State Bearing Capacity
11.3 Calculation of Normal Service Condition
11.4 Design of Connections
11.5 Structure
12 Steel Tower
12.1 General
12.2 Structure Requirements
13 Cable System
13.1 General
13.2 Structure Design
14 Pavement of Steel Deck
15 Protection and Maintenance Design
16 Support and Expansion Device
16.1 Support
16.2 Expansion Device
Appendix A Overall Stability Reduction Factor of Axial Compression Members
Appendix B Elastic Buckling Coefficient of Stiffened Compression Plate
Appendix C Fatigue Details
Appendix D Calculation Method of Damage Equivalent Coefficient
Appendix E Calculation of Tear Strength, Shear Stress and Normal Stress of Gusset Plate
Appendix F Calculation of Effective Width of Composite Beam Flange
Explanation of Wording in This Specification
