List of Contributions

I have been retired now for more than 10 years. Ever since I started in the engineering business, working mostly on industrial and general building projects, the design effort has always included iterations and changes as it proceeded, mostly resulting from the necessary coordination with the other design ...

I wrote this assuming that the addition was to the side. If on top, these comments do not apply. ------------------------------ Richard Lenz LM, ASCE, Retired West Chester OH (513) 777-5525 ------------------------------

Consider designing the building addition (project extension) such that very little load (if any) is carried by the existing structure. This can be accomplished using cantilevers in the framing, and grade beams cantilevering over new footings. Footings should be located far enough away that they do not ...

Hurricane design wind speed is a lot more than 90 mph. Anyway, 60 mps equates to 135 mph, more like a hurricane wind speed, although certainly not the highest. Not sure how you got to 3600 mph, other than there are 3600 seconds in an hour. Also, with the way the weather is changing (along with climate ...

The spalling is likely due to lack of an adequate joint filler when originally constructed. Sawed control joints should be filled after the slabs have cured and before being put into use, especially with hard-wheeled trucks. Now retired, I am not up-to-speed on the latest materials. Years ago we spec'd ...