About the author  ⁄ Ian Robertson, Ph.D., S.E.

Ian Robertson is a Professor of Structural Engineering in the Department of Civil and Environmental Engineering at the University of Hawaii at Manoa. Ian can be reached at ianrob@hawaii.edu.

In the May 2016 issue of STRUCTURE, Part 1 of this series addressed through-bolts in masonry walls. That article was based on hybrid masonry research funded by the National Science Foundation’s Network for Earthquake Engineering Simulation Research (NEESR), but the information provided is useful to all designers of masonry construction where through-bolts are useful.

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As voluminous as our codes have become, they do not provide guidance to all situations. Students in structural design classes often ask the professor, “What is the procedure I need to follow?” The question they should be asking is “What is the underlying behavior?” Only then will they begin to develop engineering judgment and be able to correctly implement code provisions in their designs.

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