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?