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hello All: I had always assumed that a single plate connection to column web (with a> 3.5") is an "extended configuration" per AISC as the bolt line is typically more than the AISC stipulated value of 3 1/2" and one cannot ignore eccentricity when considering the bolt strength. However, when...

Dear All: I have been licensed as an SE in the state of Illinois since 2006 and now wish to obtain an SE license from the state of California. My review of the licensure board of California's website indicates that I have to give the new SE - Gravity and SE - Lateral exam before I give the...

Hello All: I was just wondering what the standard practice is when it comes to prepping a construction joint in a concrete structural element: We typically specify that constructions joints be keyed and/or doweled depending on the structural element. For prep we specify that the existing...

Hello All: I am a structural engineer and have been recently assigned with the job of designing the foundation for a water storage tank (26' dia x 35' high). From my online/literature research I see that the options for the tank foundation are either a crushed stone ringwall or a concrete ring...

Hello All: I am a structural engineer and have been recently assigned with the job of designing the foundation for a water storage tank (26' dia x 35' high). From my online/literature research I see that the options for the tank foundation are either a crushed stone ringwall or a concrete...

Dear All: Please direct me to popular references for "Pipe Rack Analysis/Design". I will soon be involved in designing a pipe rack for a steam pipe and want to get to know the things I should be wary off apart from the obvious. Thanks

Hello All: I am not at all familiar with shoring and reshoring used in concrete buildings and recently was asked this question by a concrete sub in a RFI which goes something like this... "We will be using a shoring system that will allow us to strip the shoring around the shores that will...

Dear All: I am a structural engineer who has never done stair analysis/design ...for one of the projects I am currently working on the client wants us to design a "switchback" stair.The spans are such that deflections are becoming a big head ache esp when I apply the uniform live load on one...

Hello All: I am modelling a 10 story concrete 2-way slab/concrete columns/concrete shear wall model in ETABS. I have defined the concrete 2-way slab as a shell. Now coming to the problem, the reactions I obtain at columns are <50% of what I obtained from column (made sure that column is far...