Overview of Current Prestressing Technology in Offshore Structures
File : pdf, 24.3 MB, 91 pages
TOC
1—Introduction
Background
Objective
Scope
2—Applications of Prestressing Technology in Offshore Structures
3—Durability and Past Performance of Offshore Concrete Structures
Durability Design Requirements
Durability Performance of Offshore Concrete Structures
4—Design Criteria for Prestressed Concrete Offshore Structures
Load Criteria
Crack Control Criteria
Objective and significance of crack control
Minimum reinforcement for crack width control
Design methods for controlling crack width
Allowable stress criteria for crack control
Allowable crack width criteria
Calculation of decompression and crack formation
Calculation of crack width
Ultimate Limit State Criteria
Shell subjected to membrane forces only
Shell subjected to membrane forces and bending
Shell subjected to membrane forces, bending, and transverse shear
Stress conditions at intermediate prestressing anchorage
Fatigue Limit State Criteria
Fatigue design methods
Fatigue characteristics of basic materials
Fatigue characteristics of prestressed concrete members
Case study: failure of Lacey V. Murrow Bridge
5—Conclusions
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