Carbon Fiber Composite Jackets to Protect Reinforced Concrete Columns against Blast Damage
Publication: Structures Congress 2009: Don't Mess with Structural Engineers: Expanding Our Role
Abstract
An elevated risk of deliberate attacks on high-profile and critical facilities underscores the need to protect buildings against blast damage. Under blast loading the structure may be vulnerable to progressive collapse, which begins when a load-bearing member suddenly loses its ability to carry the loads above it. Once this happens, the failure can propagate through much or all of the structure if there is insufficient redundancy and continuity. Preventing progressive collapse involves designing appropriate alternative load paths and hardening critical elements to withstand blast loading. The experimental and computational work herein addresses the latter strategy. The experimental portion shows the efficacy of carbon fiber reinforced polymer (CFRP) wraps as an effective retrofit method and provides data for calibration of computational models. The computational portion assesses current modeling capabilities. Areas in need of improvement are identified.
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Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Blasting effects
- Carbon fibers
- Columns
- Composite columns
- Composite materials
- Concrete
- Continuum mechanics
- Damage (material)
- Damage (structural)
- Dynamics (solid mechanics)
- Engineering materials (by type)
- Engineering mechanics
- Fiber reinforced concrete
- Fibers
- Forensic engineering
- Materials characterization
- Materials engineering
- Reinforced concrete
- Solid mechanics
- Structural dynamics
- Structural engineering
- Structural members
- Structural systems
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