I have a high load 5/8" plywood roof diaphragm with 2 rows of 10d edge nails at 3" oc. The framing is Redbuilt Red-W trusses. The placement of some of the strut bracing prevents the placement of the blocking at the panel edges. In one location this situation happens for 50 linear feet. The...
Simplified Situation
I have two cantilevered steel columns that are spaced apart from one another. I have a steel cable running from column to column. If I apply a load perpendicular or normal to the cable, how do I determine the axial force in the cable?
Actual situation
I have five...
I want to attach a wood beam to a wood column using a lag screw with 12" embedment into the column, not including the length of the tapered tip. I am expecting the lag screw to resist withdrawal only. The beam is a 6×12 DF #1 and the column is a 6×6 DF #1. The lag screw conforms to A307 grade A...
At a steel column to concrete foundation and similar attachments, our office generally specifies an all thread rod with a nut-washer-nut at the bottom as opposed to a headed bolt. Portland Bolt has an article on their website stating that their testing indicates that an all thread rod with a nut...
The contractor asked me if he could use an equivalent strength "grout" instead of "concrete" for a concrete retaining wall I designed. What he is asking is if I will approve the use 3/8" aggregate instead of 3/4" aggregate. He wants to pour using a 2"Ø hose with a grout pump instead of using a...
