Answers . 07 April 2010                     
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Quizzical Pursuit
—The Architecture Puzzler

Created by Dave Guadagni

Solution to Last Week's Puzzler
Architecture Puzzler #468


What would you expect to be different in the construction of a beam designed to withstand a positive moment compared to a beam designed to resist a negative moment?


For a beam designed with a positive moment (simple supported beams), the reinforcing steel would be located in the bottom of the beam. For a beam designed with a negative moment (such as for overhangs and cantilevers), the steel is located near the top of the beam.


Okay, got it? Now try this week's Puzzler:


Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects

Quizzical Pursuit is Copyright 2010, Dave Guadagni.


ArchWeek Image

Workers guide a steel beam at a high-rise construction site.
Photo: National Institute for Occupational Safety and Health

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