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Life-Cycle DesignPresented by:
David Gutierrez Rivera
Life-Cycle
Design
Contents1. Preliminaries2. Concepts3. Working Life of a
Structure4. Economical Aspects5. Difficulties6. Advantages7. Concluding Remarks
PreliminariesStructure Evolution
Analysis & Design
Analysis Design
External Forces
Internal Forces
Deflections
Crack Widths
Life-Cycle
Structure
Type
Material Type
Dimensioning
Reinforcement
Basically, this design approach is based upon the main idea that structures suffer Degradation over time, thus reducing its initial safety ranges
ConceptsThe Idea of Life-Cycle Design
Degradation Over Time
For Life-Cycle Design we have to consider thefollowings:
- Structure Degradation
- Resistance Alterations
- Safety Reduction
Structure Degradation
• Fatigue• Cracking• Corrosion• Cycling Loads• Temperature
Resistance Alterations are Induced by:
Safety Reduction
Working Life of a Structure
Economical Aspects
Need of vast and accurate Data, like the Mechanical Loads and Natural Hazards
Methods for Surveying structural damage during its life-time
Development of advance Construction Methods
More complex Design Procedures
Difficulties
More Efficient Structures
Flexibility in Economical Aspects for a Structure
Ability to Warranty Structures
More Durable and Reliable Structures
Advantages
Structure Deterioration:
- Fatigue
- Cracking
- Corrosion
Life Cycle
- Efficient
- Economical Flexibility
- Durable and Reliable
Design
Concluding Remarks
Thank YouAny Questions or Comments?