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If your located in the USA you may want to look at a manufactured device that works similar to your sketch. Look at Lindapter at https://www.lindapter.com/us

Gable Ends typically have vertical intermediate columns (called wind columns). Your sketches are not showing these. These end wall columns may (or may not) be slotted vertically at the roof, so they will not transfer gravity loads. In the USA these columns are typically 20 to 25 feet apart...

I look at as: Since a crane moves by definition, the only real dead load is the weight of its runway. The dead load of the crane bridge can move to different portions along the support structure and may or may not be present. Therefore I treat the entire crane as a live load, no point in...

"The room is set up for a college Virtual reality area, they have no beneficial drawings or plans. I pulled a carpet square back to find thin metal plates... If this a manufactured raised floor system you may need data from the system supplier. A floor system like this...

I believe OSHA took effect in the 1970's. A quick look thru our library, I see a 1978 BOCA building code that lists both the 200 lb and 50 plf rules. Our UBC from back then is missing. I think the 200 lb rule was in the original OSHA rules, but our hard copy is long gone. A quick Google search...

Based strictly on the OP data: 200 TPH = 400,000 Lb/Hr assuming 2000 pound Tons 400,000 Lb/Hr = 400,000/60 = 6666.67 Lb/min Conveyors are uniformly loaded normally. A belt speed at 160 FPM means in one minute, 6666.67 Lb of material is spread out over 160 feet OR 6666.67/160 = 41.67 Say 42...

Also look here: http://www.hamiltoncaster.com/Casters

Perhaps something similar to the State of ND requirements for electronic drawings will fit your situation: Electronic reproductions of drawings, plan sheets, specifications, studies, reports, plats, maps, and other engineering and surveying work product that are distributed to reviewing...

It seems like OSHA may considers this a de minimis violation (one of their favorite terms). https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=INTERPRETATIONS&p_id=25335

Five Star has a free download PDF Guide about grouting that discusses various methods. The link can be found here: http://www.fivestarproducts.com/resource-center/literature-downloads.html

As an alternate path to consider: If the crane access is just temporary and only a few columns need to be removed and restored, can you just protect your original cast in place anchor rods by using a combination of timber (crane) mats and compacted fill? This can be removed later, leaving the...

If you look in the 7th Ed (blue) AISC Steel Manual you will see t6he solid dot is the old Field Weld symbol.

Some possible issue to be concerned with: 1. How would the guardrail on the edge of the platform be supported at the cantilevered grating edge? 2. Does the tanks have a perimeter guardrail if you are walking on the top of the tank? 3. Do you have a fall protection system for 100 % tie off if...

You might want to look at AISC Design Guide 27 "Structural Stainless Steel" that was published in 2013

You might review TM 5-809-1/AFM 88-3, Chap. 15 CONCRETE FLOOR SLABS ON GRADE SUBJECTED TO HEAVY LOADS. It includes a discussion for wall loads at the edges of slabs on grade.

JStephen has the right idea. I'd probably offset horizontally 7" from the centerline of the rung similar to OSHA ladder toe clearance climbing requirements.

CVG has a good point about arc flash. A few years ago an electician was killed inside an MCC room at one of our local surface mine processing plant. An arc flash explosion was caused by an electrical fault. It damaged the concrete slab (on metal deck) roof and cracked the 8" cmu walls. The...

When trying to burn sawdust... http://explosives.wonderhowto.com/inspiration/boom-sawdust-explosion-tested-by-mythbusters-0113376/

Based on specification section J3.2 Size and Use of Holes, Shorts slots could be used if the connection is slip-critical. In a bearing connection short slots needs to be transverse to the direction of loading. This isn't practical in my opinion.

Your interpretation of the footnotes match mine. You may also look at AISC Design Guide 15 which replaced the book. My original copy of a 1915 Cambria Steel manual lists an allowable fiber stress of 16000 psi. The AISC DG 15 says the AISC specification for 1923 list the allowable stress as 18000...