JTG 3362-2018 Specifications for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts
1General Provisions
1.0.1 The Specifications is developed for regulating the design of reinforced and prestressedconcrete highway bridges and culverts to ensure the quality of the projects.
1.0.2 The Specifications is applicable to the design of reinforced and prestressed concrete bridgeand culvert structures to be built on classified highways, and is not applicable to the design ofbridge and culvert structures made of special conerete.
1.0.3 The limit state design methodology, which is based on the probability theory and expressedwith partial factors , is adopted in the Specifications for design purposes.
1.0.4 In addition to the Specificdtions, the design of reinforced and prestressed concrete bridgeand culvert structures shall also comply with the provisions in current relevant national and industrystandards.
2Terms and Symbols
2.1 Terms
2.1.1 Reinforcing steel
Non-prestressed reinforcement in concrete structural members.
2.1.2 Prestressing steel
Materials used for applying prestressing forces in concrete structural members, including steelwires, steel strands. and steel bars.
2.1.3 Reinforced concrete structure
A concrete structure that contains load-carrying reinforcing steel.
2.1.4 Prestressed conerete structure
3Materials
3.1 Concrete
3.1.1 The concrete strength class shall be determined based on the characteristic compressivestrength of 150 mm cubes.
3. 1.2 The concrete strength class of load-carrying members in highway bridges and culverts shallconform to the following requirements :
The concrete strength class shall not be lower than 25 for reinforced concrete members.and shall not be lower than C30, when reinforcing steel with characteristic strength of 400MPa or above is used.
The concrete strength class shall not be lower than C40 for prestressed concrete members.A concrete stfueture that contains prestressing steel that is used to develop prestressing forcesby tensioning or other methods.
Contents
1General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
Materials
3.1Concrete
3.2 Reinforcement
4Basis of Structural Design
5 Design for Ultimate Limit State in Persistent Situations
General
5.2 Flexural Members
5.3Compression Members
5.4 Tension Members
5.5 Torsion Members
5.6 Members Subjected to Punching Shear
5.7 Members Subjected to Local Compression
6Design for Serviceability imit State in Persistent Situations
6.1 General
6.2 Loss of Prestress
7Stress Analysis of Members in Persistent or Transient Situations
7.1 Stress Analysis for Prestressed Concrete Members inPersistent Situations
7.2 Stress Analysis of Members in Transient Situations
8Requirements for Member Analysis
