My company received a work scope from a client specifying the use of "embedded cans with chemical anchors installed inside the cans." The spec also explicitly states that "embedded anchors are not to be used." Does anyone know what this is? Or can anyone guide me in the right direction?
First, some background info...
Our client's standards state that vertical fixed ladder supports shall not exceed ten feet. Upon inspection of already-installed ladders on this particular site (designed by other firms), we noticed that many of the actual support spans exceed ten feet (approx...
Does anyone have any recommendations on some good textbooks regarding reinforced concrete? I'm trying to brush up my skills and want to see what others have used. Thanks in advance.
- Adam
I am doing some safety inspections on a refinery in Indiana. Per our client's standards, handrail extensions are required on elevated platforms. See attached for clarification. Now, I came across many situations where this was not done, and the client and I have come to the general consensus...
Does anyone know where I can find a list of AWS's standard finishing designations? For example, G = Grinding, C = Chipping, and M = Machining. Are there any other types? See attached for clarification (in blue). Thanks in advance.
- Adam
I've been given the task to calculate rebar quantity takeoffs for some foundations based on another firms drawings. I've never done these before, and have had minimal feedback from my superiors, so I was just wondering if anyone could take a look at this and provide me with some constructive...
I'm developing a spreadsheet for allowable pipe spans and am having trouble finding the correct equation to modify Young's Modulus based on varying temperature. Can anyone help me out on this? I've attached my spreadsheet thus far so you can get an idea of what I'm talking about. Row 35 is the...
I have been given the task of calculating the stiffness of a pipe support. In this particular area a vibration analysis was done on the piping system, which dictates that my support needs to have a stiffness of at least 2,000,000 LBS/IN in the pipe's longitudal direction (The pipe is 12" sch...
I'm working on a structural remediation of a library and have been supplied live loads and steel member sizes to determine my dead loads for temporary shoring. The client wants to remediate by reinforcing the underside of the second floor, so temporary shoring will be required. Now, the drawing...
I am analyzing single column, unbraced pipe supports using ASD05 (although LRFD is acceptable as well) and have a question regarding the column design. I've used the methods prescribed in Salmon & Johnson's "Steel Structures" (5th Ed.) for axially loaded columns. As you can see from my attached...
Does anyone have any good references on column design for axial load + moment? Say I have a 20' tall column with an allowable axial load of 20 kips. Say there is a moment of 5 foot-kips at the base plate. What would one have to take into account? I have AISC's latest errata of their Design Guide...
I have AISC's Design Guide 1 - Column Base Plates copyrighted in 2003 by AISC. This is based off of Allowable Stress Design with examples of LRFD. Does anyone know if AISC plans on revising this to incorporate Allowable Strength Design?
I have a 12" SCH. 10 Stainless Steel Pipe bearing on a carbon steel structural member. My question is this: Do I need some kind of wear pad between the two? I know I've heard something about this in the past, but I can't seem to remember what the rule is (nor can I find any literature on it)...
I'm doing a 14' x 38' addition to an existing residence and the client wants me to do energy calculations. Does anyone have any reference material on this? I'm not sure where to start as I've never done energy calcs before, so any info on this would be greatly appreciated.
Does anyone have a standard detail(s) for jersey barriers? I'm supposed to do an analysis on them, but I have absolutely nothing to go on. My boss said that I could simply use a generic jersey barrier detail, but it's up to me to find one... Any help on this would be greatly appreciated...
Does anyone have a list of sizes for WT's to serve as shoe supports? I.E. for a 6" STD WT pipe, use a WT4x5, etc. If possible, it would be nice to have the load capacities as well. Just seeing what's out there...
Is there a preferable range for slenderness ratio? I.E. is it preferable to have my slenderness ratio fall into a specific range like, say, 90-150? I have a column that checks out ok, but the slenderness ratio is at 190. My tendency would be to simply bump up a size (increase the radius of...
I'm a young gun starting out his career, and my father (a civil P.E.) taught me how to do all my calcs using the ASD method. I recently bought Salmon & Johnson's "Steel Structures" 5th Ed. and they emphasize LRFD. Is this a trend that is starting to be used more and more? I'd like to know which...
Can anyone tell me where I can find the Allowable Stress For Compression Members table in the 13th Edition AISC Manual (black)? It was formerly Table C-50 on page 3-17 in the AISC 9th Ed. manual (green). Has this moved? Or has this changed? If it no longer exists, how can I obtain the allowable...
