While reviewing problems for the PE, I came across a question regarding wood design. The problem dealt with designing a wood member under Dead Load, Live Load, and Wind Loading. In the solution, they merely added these 3 loads together and used the duration factor. From my research, it seems...
We are having an internal discussion at my office regarding steel cables. Take the following scenario:
5 bays (6 supports) with a steel cable taking the loads. The loads may be on every bay, or may be on as little as one bay (or any combination in between). Does it change the max end reaction...
I have a steel cable supporting a net. The entire system is about 60' high, but the application will have a steel cable supporting 50' vertical of netting. I have to treat the net as if it is seeing all of the wind load, which comes out to be about 23psf after all factors. The span is going...
I was looking through ASCE 7-05 at the Components and Cladding for Gable Roofs with Theta <= 7 (pg. 56, figure 6-11B). Note 5 states the following:
I understand the first comment that you use Zone 2 for Zone 3. However, the next comment has me slightly confused. I read it that you should...
Hello,
I have a unique case where a bolt is going to see bending stress. Two "brackets" are being bolted together around double angels. One bracket will be connected to the double angle. The other bracket will be bolted to the first one. The problem is that the bolt will have at least 3" of...
Hello,
I am currently working on a design to resist horizontal loads through friction and passive pressure. I have gotten the system to work except that the soil is failing in shear. We are going to be using 3/4" crushed aggregate. If it is helpful I may be able to specify a certain type of...
Hello,
I have weight (140 kip +) that will be sitting on a precast plank (yet to be designed). The end goal is to have a system with an "equivalent coefficient of friction" of 1.0, so that 140 kips of weight can resist 140 kips of lateral force. It was suggested to place plates at the end of...
