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Thanks KootK, On the last point, I ruled out the HSS as an option for this building because it can be done with the tracks. It sounds like you understood that I considered money over the "proper and safe design". That is definitely not the case.

Thanks. For the track to work as a beam in this building, the hollow core slab needs to bend between the 16" spaced studs. The track doesn't work as a beam here. The proper analysis, in my opinion, is that the edge of the slab is supported on point loads, being the studs. The composite behavior...

It could. But is it a good idea cost wise? I don't think so.

66 kN (about 15kips)

Hello all, Looking to see what works better in terms of the design of a diaphragm chord in a building constructed with hollow-core slabs, CFS stud walls as load bearing walls and cast-in-place concrete shear walls. The two options I am thinking of are: 1- CFS straps at the edges of the slabs...

Thanks! all for the responses. @sparweb: Your storey happened to me almost exactly before I started on my own. But, as I said, my "firm" is only me as an engineer. My employee can't replace me. @ Littelnch: I don't look for work. It comes to me from few repeated client. I kept it this way...

Thanks! phamENG. I don't see working with a partner or a boss for a couple of year that big a deal, especially that we know that I am staying for them. In fact, I think I would like to stick around for some time after just to gradually adjust everything.

Hello, Can a firm with one engineer and one CAD person be sold? I was thinking, since getting closer to the end, let's see what others say.

dik, Agree, but adding loads means increasing punching shear and loads on columns and footings, which might not work. That is why we are trying to stick to a repair that is within the capacity of the structure.

Foam concrete weighing half of weight of gravel might work subject to the approval of civil and building science engineers. Raising the slab on one end? Can't add enough concrete to achieve the slopes. Adding composite topping is beyond the scope of this job.

Thanks dik. I just emailed a supplier of foam concrete in my area and will see their input.

Thanks HTURKAK. Will check our market if something similar is available.

Thanks dik I was thinking of using the allowance for the 4" gravel for new light weight fill, insulation or lightweight granular.

Hi all, We have an existing suspended two-way concrete parking deck slab that needs the surface slopes increase. The slab design loads are fixed and can't go over them. The design includes 4" of asphalt and max. 4" of gravel. However, to achieve the required slopes, we need up to 12" of gravel...

Dik, I am asking if the horizontal EJ in the slab needs to turn vertically into the basement walls down to the footing? Since the basement walls will not experience significant thermal change, is it not adequate to provide control joints to control shrinkage cracks?

Thanks for the input. The underground parking area is fully buried with shafts. Does the EJ need to continue down in the walls? I am hoping to avoid that by having a control joint lining up with EJ in the slab. I have seen many times, where the EJ not continuous into the walls, the walls crack...

Hello, We have a site where we will build 130mx80 one level underground basement/parking garage. There are two concrete 6-storey buildings above the basement that will occupy part of the footprint of the basement and the rest will be used as surface parking area and roads. Please see attached...

Hi all, Looked at a parking garage where two walls were cracked at a couple of locations. The attached images show these cracks. It was clear to me that the cracks happened because the expansion joint in the roof deck was not continued into the walls. Now to repair, I am suggesting to create...

Devolving rebars into a pier using epoxy to resist 300kips is questionable, I think! With the spacing and the edge distance reduction factors, it could be impossible, unless your beam and piers are really wide. I wonder why you are not bringing the beam down to the footing! do you need the full...

Thanks all, We will do a bit more digging and if I find anything useful, I will share it.