A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In the past, the author have witnessed some dramatic cracks in post-tensioned parking structures. Could they have been prevented? The answer in many cases is yes. As is true with most aspects of structural engineering, experience with a particular problem is the key to being sensitive to it in the design. Field and design experience has led him to conclude that proper detailing is the key to designing durable, economical, and trouble-free unbonded post-tensioned parking structures. Some factors that affect economy and durability include: percent of dead load balanced by the post-tensioning; average compressive stresses in the slab and beams; amount and lengths of mild steel; concrete cover to the reinforcement; special corrosion preventives, such as epoxy coatings; and amount of ties and stirrups at the intersection of the columns and the flatwork. A successful post-tensioned parking garage design is obtained largely through well-conceived details. Thought should be given to the reinforcement detailing and to how that will affect the long-term corrosion process.
In the past, the author have witnessed some dramatic cracks in post-tensioned parking structures. Could they have been prevented? The answer in many cases is yes. As is true with most aspects of structural engineering, experience with a particular problem is the key to being sensitive to it in the design. Field and design experience has led him to conclude that proper detailing is the key to designing durable, economical, and trouble-free unbonded post-tensioned parking structures. Some factors that affect economy and durability include: percent of dead load balanced by the post-tensioning; average compressive stresses in the slab and beams; amount and lengths of mild steel; concrete cover to the reinforcement; special corrosion preventives, such as epoxy coatings; and amount of ties and stirrups at the intersection of the columns and the flatwork. A successful post-tensioned parking garage design is obtained largely through well-conceived details. Thought should be given to the reinforcement detailing and to how that will affect the long-term corrosion process.
Tips for Post-Tensioning
Daniel W Falconer (author)
2016
Article (Journal)
English
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