Tài liệu Presentation design of superstructure

Chapter 2 Design of Superstructure 2.1 Design Condition Chapter 2 Design of Superstructure 2.1 z Design Condition Design Criteria Design Criteria For Cable Stayed Bridge - BAI CHAY BRIDGE - JUNE 1996 This criteria is based on JSHB-96. Limit State Design Method is incorporated into this criteria. (JSHB-96:Japanese Specifications for Highway Bridge 1996) Chapter 2 Design of Superstructure 2.1 z Design Condition Structural Characteristics of BAI CHAY BRIDGE 1) One-cell inverted trapezoidal box girder with long cantilever slab, 45 degree inclined web and steel pipe Steel Pipe Brace Chapter 2 Design of Superstructure 2.1 z Design Condition Structural Characteristics of BAI CHAY BRIDGE 1) One-cell inverted trapezoidal box girder with long cantilever slab, 45 degree inclined web and steel pipe Chapter 2 Design of Superstructure 2.1 z Design Condition Structural Characteristics of BAI CHAY BRIDGE 2) Tower is single column with separate anchorage of stay cable. Chapter 2 Design of Superstructure 2.1 z Design Condition Structural Characteristics of BAI CHAY BRIDGE 2) Tower is single column with separate anchorage of stay cable. Stay Cable Anchorage Chapter 2 Design of Superstructure 2.1 z Design Condition Structural Characteristics of BAI CHAY BRIDGE 3) Completely rigidly connected frame structure at junction of tower, main girder and pier. Chapter 2 Design of Superstructure 2.1 z Design Condition Structural Characteristics of BAI CHAY BRIDGE 3) Completely rigidly connected frame structure at junction of tower, main girder and pier. Chapter 2 Design of Superstructure 2.1 z Design Condition General Requirements 1) In the design of this cable stayed bridge, thorough consideration shall be given to safety, durability, economy, excellence of operational performance and compatibility with the environment. Chapter 2 Design of Superstructure 2.1 z Design Condition General Requirements 2) The design lifetime shall be assumed to be 100 years. 3) The design criteria indicated herein are predicated on the assumption that all construction operations will be performed in appropriate manner. Chapter 2 Design of Superstructure 2.1 z Design Condition Design method In the design of cable stayed bridge, durability and safety shall be confirmed by performing the following series of design operations. a) Design as a frame structure by linear analysis b) Design as a frame structure by compound non-linear analysis c) Design by FEM analysis Chapter 2 Design of Superstructure 2.1 z Design Condition General condition (2) Name of route: Grade of road: (3) Type of Bridge: (4) Structure type: (1) National Highway No.18 Urban road of class 2 (V=80km/h) Prestressed Concrete Highway Bridge PPC 6spans continuous cable stayed bridge Chapter 2 Design of Superstructure 2.1 z Design Condition General condition (5) Bridge length: 903.00m (6) Girder length: 902.50m (7) Span length: 35.0+86.0+129.5+435.0+129.5+86.0m (8) Width of bridge: 25.300~25.700m (9) Transverse slope: 2.00% (10) Vertical slope: 4.00% Chapter 2 Design of Superstructure 2.1 z 1.0 40.0 Design Condition Detailed Dimension 86.0 129.5 903.0 435.0 129.5 90.0 47.5 Pier Table Segment Brace pipe Stay cable 86.0 1.0 Chapter 2 Design of Superstructure Detailed Dimension Detail dimension of girder 2% 250 2% 3645 z Design Condition 200 2.1 35 0 Chapter 2 Design of Superstructure 2.1 z Design Condition Detailed Dimension Detail dimension of girder Steel Brace Stay cable anchorage Chapter 2 Design of Superstructure 2.1 z Design Condition Detailed Dimension Detail dimension of girder Stay cable anchorage Square Steel Pipe(t=16mm) Round Steel Pipe(t=9mm) Chapter 2 Design of Superstructure z Design Condition Detailed Dimension Detail dimension of pier table Cross Beam 820 2.1 Chapter 2 Design of Superstructure 2.1 z Design Condition Detailed Dimension Detail dimension of pier table Cross Beam Inside of Pier Table Chapter 2 Design of Superstructure z Design Condition Detailed Dimension Detail dimension of Tower 24Lift (4.2m~2.5m) 2.1