The Limited Reality of Service Stresses in Design of Post-Tensioned Concrete
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Duration: 2.50
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November 13, 2024; 11:00 AM – 1:30 PM Pacific Time
Bryan Allred, S.E.
Why can’t engineers simply increase the service moment used for stress analysis by a load factor and use that for Ultimate Strength design? This approach would be valid for steel design, so what not post-tensioned concrete? The webinar will explain the limited reality and “incompleteness” of the service stress model using equivalent loads and why the service reactions, shears and moments are invalid for Ultimate Strength design. The myth of how equivalent loads makes buildings lighter will also be explained.
Speaker Bio
Bryan Allred, S.E. is a licensed structural engineer who specializes in the design of reinforced concrete buildings utilizing post-tensioned floor systems. He is the co-author of the book “Post-Tensioned Concrete Principles and Practice” which covers the design of post-tensioned concrete structures from basic fundamentals to specific construction detailing. Bryan is a fellow of the Post-Tensioning Institute (PTI), a member of their Building Design Committee and has given numerous PTI educational seminars across the country highlighting the use and benefits of post-tensioning.
November 13, 2024; 11:00 AM – 1:30 PM Pacific Time
Bryan Allred, S.E.
Why can’t engineers simply increase the service moment used for stress analysis by a load factor and use that for Ultimate Strength design? This approach would be valid for steel design, so what not post-tensioned concrete? The webinar will explain the limited reality and “incompleteness” of the service stress model using equivalent loads and why the service reactions, shears and moments are invalid for Ultimate Strength design. The myth of how equivalent loads makes buildings lighter will also be explained.
Speaker Bio
Bryan Allred, S.E. is a licensed structural engineer who specializes in the design of reinforced concrete buildings utilizing post-tensioned floor systems. He is the co-author of the book “Post-Tensioned Concrete Principles and Practice” which covers the design of post-tensioned concrete structures from basic fundamentals to specific construction detailing. Bryan is a fellow of the Post-Tensioning Institute (PTI), a member of their Building Design Committee and has given numerous PTI educational seminars across the country highlighting the use and benefits of post-tensioning.
Bryan Allred, S.E. is a licensed structural engineer who specializes in the design of reinforced concrete buildings utilizing post-tensioned floor systems. He is the co-author of the book ``Post-Tensioned Concrete Principles and Practice`` which covers the design of post-tensioned concrete structures from basic fundamentals to specific construction detailing. Bryan is a fellow of the Post-Tensioning Institute (PTI), a member of their Building Design Committee and has given numerous PTI educational seminars across the country highlighting the use and benefits of post-tensioning.