I specified the use of "3/4" dolomite" for final grading of a site. What I get from the contractor is "well graded dolomite" in accordance with ASTM's standard size #57 which, according to the contractor, is graded 3/4" stone. The average size of dolomite delivered is significantly smaller...
I'm trying to find some design aides on designing gravity retaining walls. My text book, reference manuals and even my trusty Army Corp of Engineers manuals all stress analysing existing structures. I need to learn how to come up with a shape based on soil parameters. Particularly, the slope...
I'm curious if anyone has any experience using rebar ties made of materials other than steel? I recently worked with a contractor to install a concrete foundation for a piece of equipment with magnetic field sensitivies. Instead of using steel, we used a fiberglass composite as reinforcement...
I have a design for a monolithic slab that will be 8'x18'x4' that is designed to support a 90 ton piece of equipment. This particular design requires a great deal of field prep and alot of effort in terms of coordination, materials and manpower. This problem is intensified by the fact that...
I will be welding a W12 beam to an existing W14 x 202 column. This beam will be subjected to a vertical load and a horizontal load. The horizontal load from the beam will result in torsional buckling of the column.
At this point, I am most likely going to beef up the column by either adding...
