Good day. I need to design the foundation for a light pole. To get my foundation loads, I need to analyze the light pole for seismic. When analyzing for seismic, I'm wondering what part of the National Building Code of Canada, Part 4 would apply to this structure? I intend to use the Equivalent...
Good day. I'm designing a reinforcement for the existing open web steel joists and I'm wondering if there is such a requirement as the minimum weld length for the flare-bevel groove weld? I've always used 1.5" minimum and there is such a requirement for the fillet type weld but there is nothing...
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I'm designing a built-up crane runway beam built of the w-section and a c-channel welded onto the top flange. When checking the built-up member top flange elements for their class/compactness, I'm not sure what criteria to use for the part of the c-channel web located between the edge...
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I'm dealing with a situation where I have cantilevering single angle supporting a point load at the cantilever end. The angle is oriented in such a way that the toe of the angle pointing in the same direction as the point load and is in compression. The angle is anchored to concrete...
Good day. I'm analyzing the top chord of the open web steel joist in compression. The top chord is cold-formed hat channel and mode of failure in compression is torsional buckling. This top chord is connected to metal roof deck and I'm trying to figure out what can be considered as adequate...
Good day. I'm analyzing the existing Open Web Steel Joist for new load. The existing joists are made by Omega Joists, Canada and are dated 1999. I'm trying to determine top chord capacity which is in the shape of hat channel and is 2.36mm thick. Using the approach given in steel and cold-formed...
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I'm designing a crane supporting structure made of steel and realizing that it takes a heavy frame structure to be within the lateral deflection limits recommended by crane design manual. I tried using the metal deck as diaphragm and load and deflection wise everything works out fine...
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I'm working on addition of crane in the existing shop that has 6" slab on grade floor. I will be using cast-in-place piles for crane support columns. One constraint I have is that I don't really have anything to tie into to resist lateral forces caused by crane operation (forces...
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I'm working on a project where 8" masonry firewall needs to be added into existing building. Wall will be supported by cast in place pile foundation. I was thinking of eliminating concrete grade beam and going with reinforced masonry beam built completely above grade instead...
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I'm working on evaluation of existing OWSJ roof structure impacted by the rooftop unit addition. I'm trying to do detailed load take off and wondering how most of you deal with snow drifts in the corner of the obstacle. I have seen some people ignoring it but I don't think it's...
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I'm working on a project where I have concrete grade beam (12x24) spanning between piles and supporting the wood I-joist floor structure. I was exploring the option where I would provide a 2" wide ledge in the concrete beam. One thing I'm not sure about is that whether I need to...
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I'm working on a project where opening for overhead door needs to be added in the existing CMU wall. Building is from early 70's and I'm not sure if there is any reinforcement present in walls.
From what I've see before, piers supporting the lintel are normally grouted and...
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I'm working on a stick-framed building where I have walls on grade beams which are supported on piles. Interior slab is concrete slab-on-grade. In order to create slab/grade beam joint right at the wall, I'm providing the curb. I was intending to have curb cast with grade beam as I...
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I'm designing a 80'x160'x12' wood building with gabled roof. I can get away with side walls and one interior wall going along the length of the building to be load bearing. I intended on using OSB ceiling diaphragm to transfer lateral loads to end walls (shear walls). I did...
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I'm dealing with building addition for which I'm using friction cast in place piles. Existing overhead crane structure piles are also present on site and some of these piles will be abandoned. The geotechnical report calls for spacing new piles at 3 diameters apart. My question is if...
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I'm dealing with a moment frame design where I have large tensile forces at column base. Column base is anchored with 4 j anchors embedded in grade beam pilaster. I analyzed j anchor capacity using the standard CSA A23.3 procedure and the resultant tensile strength is way less than I...
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I'm sure that the questions which I'm going to ask here was discussed before but I couldn't find the right post so I apologize in advance.
I'm working on a moment frame design where I have different snow, wind and crane load cases. I'm analyzing it in RISA and need to come up with...
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I'm looking to check the capacity of continuous top flange bracing of LVL beam and remember the rule where you take 5% of the force in compression flange and by dividing it by beam length you get the necessary lateral bracing force. The problem is that I can't remember where I've seen...
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I was doing foundation assessment and came across the cracks between stone veneer and stucco finish on the edges of the wall finished with veneer. Overall condition of veneer is fine with small cracks here and there and cracks where house and garage join (these ones are due to garage...
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I'm working on a small residential building (cabin - Part 9) designing structural part of an addition. Building is located on the lake shore with soil being sand and existing foundation is concrete pads installed at grade level. I am intending to use the same foundation for the...
