List of Contributions

When I was young I devised a clever foundation and got some advise from the architect that has stuck with me. "Dig big hole, pour concrete in it" The labor to build the piers is probably more then the cost of pouring another meter of concrete in the hole. Burying steel in the ground is never a good idea. ...

Stephanie, The work of Thomas Murray on floor vibration is a very good source on floor vibrations and the sensitivity of people to them. You are right to be concerned because in one of his publications he notes that he has never seen a successful field retrofit. I distinctly remember a chart that showed ...

Try Mathcad. You put in the formulas as they appear in the source document. Doing this gives you a better understanding of equations and the methodology. The output looks exactly like hand calculations with the advantage of full recalculation when a variable is changed. ------------------------------ ...