Neil Wexler is the founder of Wexler Associates, a 39-year-old, New York City-based firm specializing in the design of high-rise concrete buildings. He received his BS from McGill University, Montreal, QC, Canada; his MS from City University of New York, NY; and his PhD from New York University, New York, NY, all in civil engineering.
To the office you keep going
For the task that keeps on growing.
What are you doing every day
At the office … you don’t play.
Deflection of concrete members follows a bilinear curvature, and it can be affected by many different variables. Concrete members are often internally reinforced and/or tensioned, come in different shapes, and vary with regards to the ingredients and additives in the concrete. Despite these variations, engineers generalized concrete behavior and the ACI Code adopted these general procedures, though difficulties remain. Some research reported discrepancies between actual results and code predicted deflections. The Branson and Bischoff equations are currently in use for calculating Ie, but in reality, they also require calculations of y– and Icr, making the calculations of deflections lengthy and time consuming. In addition, the most recent ACI Code procedure is still dependent on curve fitting rather than a scientific basis.
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In consulting engineering practice, structural engineers face new ethical issues from time to time. One such occurrence happened recently when our firm was asked to take over a project started by another engineer. Unfortunately, taking over a project started by another engineer has legal and ethical implications, and my research found little written material on the subject.
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