Contenido Cable Supported Composite Bridges

This book introduces the latest developments in long-span cable-supported composite cable-stayed bridges, suspension bridges, and mid- and through-type cable-supported composite arch bridges. Based on the engineering application and practice of cable-supported composite bridges, this book systematically expounds the structural systems of these bridge types. It also summarizes the main construction methods, analyzes the mechanical properties of cable-stayed bridges and suspension bridges with composite girders and the influence rule with alternative spans, and proposes the reasonable span range based on economic efficiency. The prospect of using orthotropic composite bridge decks in long-span cable-supported bridges is also analyzed. This book is a valuable reference for both bridge professional technicians and graduate students for research, design and construction.

1 Introduction .

1.1 Bridge Span Development
1.2 Characteristics of Cable-Supported Composite Bridges
   1.2.1 General Characteristics
   1.2.2 Characteristics of Composite-Girder Cable-Stayed Bridges
   1.2.3 Characteristics of Composite-Girder Suspension Bridges
   1.2.4 Characteristics of Composite Deck Arch Bridges
1.3  Competitiveness of Cable-Supported Composite Bridges
   1.3.1 Composite-Girder Cable-Stayed Bridges
   1.3.2 Composite-Girder Suspension Bridges
   1.3.3 Composite-Girder Arch Bridges
   1.3.4 Competition Among Cable-Supported Bridges
1.4 Explanation of Cable-Supported Composite Bridges

2 Composite Girder (Deck Structure) and Its Applicability

2.1 Overview
   2.1.1 Basic Form of the Structure
   2.1.2  Application Overview .
2.2 Composite Steel Plate Girders
   2.2.1 Basic Characteristics of the Structure
   2.2.2 Applicability of Cable-Stayed Bridge
   2.2.3 Applicability of Suspension Bridge
   2.2.4 Applicability of Arch Bridge
2.3 Composite Steel Box Girder
   2.3.1 Basic Characteristics of the Structure
   2.3.2 Applicability of Cable-Stayed Bridge
   2.3.3 Applicability of Suspension Bridge
   2.3.4 Applicability of Arch Bridge .
2.4 Composite Steel Truss Girder .
2.4.1 Basic Characteristics of the Structure
2.4.2 Applicability of Cable-Stayed Bridge
2.4.3 Applicability of Suspension Bridge
2.4.4 Applicability of Arch Bridge

3 Composite Girder Cable-Stayed Bridge

3.1 The Development of Composite Girder Cable-Stayed Bridges
   3.1.1 Overview
   3.1.2 Technical Characteristics
   3.1.3  Application Overview
3.2 Structural System
   3.2.1 Basic Composition
   3.2.2 Classification and Characteristics
   3.2.3 External Constraints
   3.2.4 Internal Constraints
3.3 Mechanical Properties and Characteristics
   3.3.1 General Characteristics
   3.3.2 Stiffening Girders and Their Mechanical Characteristics
   3.3.3 Pylon and Their Mechanical Characteristics
   3.3.4 Stay Cable Characteristics and Mechanics
   3.3.5 Effect of Shrinkage and Creep on Composite Girders
   3.3.6 Geometric Nonlinearity of Cable-Stayed Bridges
   3.3.7 Static Stability of Cable-Stayed Bridges
3.4 General Layout
   3.4.1 Structural Form and Parameter Influence
   3.4.2 Double-Pylon Composite Steel Plate Girder Cable-Stayed Bridges
   3.4.3 Double-Pylon Composite Steel Box Girder Cable-Stayed Bridges
   3.4.4 Double-Pylon Composite Steel Truss Girder Cable-Stayed Bridges
   3.4.5 Multi-pylon Composite Girder Cable-Stayed Bridges
   3.4.6 Mixed Girder Cable-Stayed Bridges
3.5 Structure and Construction of Stiffening Girders
   3.5.1 Composite Steel Plate Girders
   3.5.2 Composite Steel Box Girders
   3.5.3 Composite Steel Truss Girders .

4 Composite Girder Suspension Bridge

4.1 Development of Composite Girder Suspension Bridge
   4.1.1 Overview .
   4.1.2 Technical Characteristics
4.2 Structural System
   4.2.1 Basic Composition
   4.2.2 Classification and Characteristics
   4.2.3 Special Cable Systems .
   4.2.4 Internal and External Restraints
4.3 Mechanical Properties and Characteristics
   4.3.1 Basic Characteristics
   4.3.2 Main Cable’s Mechanical Properties
   4.3.3 Mechanical Properties of the Stiffening Girder
4.3.4 Mechanical Properties of the Pylon
4.4 General Layout
   4.4.1 Overall Parameter Impact
   4.4.2 Influence of Member Parameters
   4.4.3 Example Analysis of Composite Girder Suspension Bridges .
4.5 Structure and Construction of Stiffening Girders
   4.5.1 Basic Forms and Characteristics of Structure
   4.5.2 Composite Steel Plate Girders
   4.5.3 Composite Steel Box Girders .
   4.5.4 Composite Steel Truss Girders
   4.5.5 Optimizing Composite Girder Bridge Deck Systems
4.6 Summary .

5 Composite Deck (Beam) Arch Bridges

5.1 The Development of the Arch Bridge
5.2 Structural Systems
   5.2.1 Basic Features and Classification .
   5.2.2 Non-Thrust Arch System
   5.2.3 Partial Thrust Arch System .
   5.2.4 Thrust Arch System
5.3  Mechanical Properties .
   5.3.1 Basic Arch Bridge Mechanical Properties .
   5.3.2 Thrust Arch Bridges .
   5.3.3 Partial Thrust Arch Bridge (Half-Through Multiple Arch)
   5.3.4 Non-Thrust Arches (Tied Arch Bridges)
5.4 Tied Arch Bridges
   5.4.1 Bridge Arrangements
   5.4.2 Arch Structures .
   5.4.3 Bridge Deck Structures (Beam)
   5.4.4 Constructional Details .2
   5.4.5 Example Analysis of Tied Arch Bridge .
5.5 Half-Through Arch Bridges
   5.5.1 Bridge Arrangements .
   5.5.2 Arch Rib and Cross Brace Structure  Application Overview
   5.5.3 Bridge Deck Structure
   5.5.4 Tie Cable Structures
   5.5.5 Examples of Half-Through Arch Bridges .
5.6 Continuous Beam Arch Bridge
5.6.1 Basic Structural Form .
5.6.2 Bridge Arrangements
5.6.3 Arch Rib Structures and Arrangements
5.6.4 Bridge Deck Structures
5.6.5 Continuous Beam Arch Bridge Projects

6 Construction Method

6.1 aistallation of Cable-Stayed Bridge Stiffening Girder
   6.1.1 Overview
   6.1.2 Stepwise Segment Assembly
   6.1.3 Integral Segment Installation of Composite Girder
   6.1.4 Large-Segment Installation
6.2 Installation of Suspension Bridge Stiffening Girder
   6.2.1 Overview
   6.2.2 General Installation Method
   6.2.3 Special Problems in Composite Girder Installation
   6.2.4 Installation Example of Composite Girder Segment
6.3 Installation of Arch Bridge Deck Structure
   6.3.1 Overview
   6.3.2 Installation of Girder Before Arch .
   6.3.3 Installation of Arch Before Girder
   6.3.4 Synchronous or Alternate Installation of Girders and Arches
6.3.5 Integral Hoisting and Installation of Girders and Arches
6.4 Incremental Launching Construction of Cable-Supported Bridge .
6.4.1Incremental Launching Construction of Arch Bridge
6.4.2Incremental Launching Construction of Cable-Stayed Bridge
6.4.3 Incremental Launching Construction of Suspension Bridge Stiffening Girder

7 Mechanical Properties and Economy of Composite Girder Cable-Stayed Bridges

7.1 Research Contents and Methods
7.1.1 General
7.1.2 Calculation Method
7.1.3 Overview of Trial Design
7.2 Overall Mechanical Properties
7.2.1 Structural Rigidity
7.2.2 Structural Internal Force
7.2.3 Stress of Main Girder
7.3 Structural Static and Wind Stability
7.3.1 Structural Static Stability
7.3.2 Structural Wind Stability
7.3.3 Summary
7.4 Factors Influencing Span Growth
7.4.1 Stay Cable Strength
7.4.2 Axial Force of Main Girder
7.4.3 Dead Load + Ultimate Static Crosswind .
7.4.4 Transverse Deflection of Main Girder Under Lateral Static Wind
7.4.5 Sag Effect of Super Long Stay Cable
7.4.6 Static Stability
7.4.7 Wind Stability
7.4.8 Summary
7.5 Economy .
7.5.1 Material Consumption .
7.5.2 Economy and Economic Span
7.5.3 Influence of Foundation Cost Fluctuation on Economy
7.5.4 Summary .
7.6 Main Conclusions .

8 Mechanical Properties and Economy of Composite Girder Suspension Bridge

8.1 Research Contents and Methods
8.1.1 General
8.1.2 Calculation Method
8.1.3 Selection of Composite Girder Type .
8.1.4 Overview of Trial Design Options
8.2 Overall Mechanical Properties
8.2.1 Finite Element Model
8.2.2 Structural Internal Force and Stress
8.2.3 Structural Rigidity .
8.3 Influence Analysis of Key Parameters of Composite Girder Structure
8.3.1 Sag-to-Span Ratio
8.3.2 Side-to-Mid Span Ratio
8.3.3 Depth of Stiffening Girder
8.4 Economy Analysis of Single-Span Suspension Bridge Option
8.4.1 Material Consumption
8.4.2 total Cost
8.4.3 Cost Composition
8.4.4 Cost Comparison
8.4.5 Influence of Foundation Cost Fluctuation
8.5 Economy Analysis of Three-Span Suspension Bridge Option
8.5.1 Material Consumption
8.5.2 Total Cost
8.5.3 Cost Composition
8.5.4 Cost Comparison .
8.5.5 Influence of Foundation Cost Fluctuation
8.6 Main Conclusions

9 Prospects

9.1 Development Needs
9.2 Materials, Members and Their Efficiency
9.3 Structural Performance Requirements
9.4 Predictability and Maintainability
9.5 Concluding Remarks
References .
Index .