Recent content by struct6

Hi all, Can some one tell me what kind of lateral load combination should I use for analyzing a structure subjected to transportation and handling loads. The structure is a skid which will be installed in a chemical processing plant. It will be built , assembled off site and transported to it...

Hi all, Can some one tell me what kind of lateral load combination should I use for analyzing a structure subjected to transportation and handling loads. The structure is a skid which will be installed in a chemical processing plant. It will be built , assembled off site and transported to it...

This is for a skid. Which is part of a chemical processing plant.

Hi all, Can some one tell me what kind of lateral load combination should I use for analyzing a structure subjected to transportation and handling loads. I saw in a sample calculation that they used the following combinations for lifting and handling loads respectively, a. for lifting load...

Thanks for all your info. We have had a serious discussion with the contractor to call us prior to every pour. We are the EOR for this project and we are also doing the special inspections. I am pretty sure he welded the studs to the side because in the consequent inspection of the same area he...

On a composite slab the contractor welded the studs to the edge of the flange rather than the center of the beam. Moreover he poured the slab before we looked at it. My question is, now since the studs are welded off center will this reduce the capacity of my composite beam and is it written...

just couple of days back I inspected studs welded on steel beams in a composite floor slab. In our project the contractor used nelson studs and the same company provides a gun to shoot the studs onto the beam penetrating the 20ga steel deck. I took a hammer and hit random studs and their...

Thanks all for your suggestions. I will use the rebar finder to determine the number of studs. I am pretty sure these guys messed up because they had a dozen studs missing in the bay adjacent to the bay in question. We are determined about making these guys fix it if they screwed up.

Hi All, We want to verify if the contractor has installed the correct number of studs on a beam in a composite slab system. They poured this particular area before we inspected and now the owner want us to make sure that the contractor installed the studs as per our drawings. Anybody has got...

jimstructures, Please can you tell me the section in ASCE 7 05 where I can find that the loading need not be doubled. Thanks

Hi Folks, what I have is a sloped lower roof which is surrounded by higher roof area along the north and east side. I calculated the drift width and drift load which is 6 ft and 30 psf respectively. my question is will the drift load be doubled up at the north east corner ? Thanks

Hi All, I am working on a project in which the client wants to put a high sensitive equipment in a ground floor of the building. they have conducted a vibration survey and the current vibration levels are higher then the acceptable levels established by the equip manufacturer. The current...

Hi Folks, I am designing a foundation for a unheated storage unit. I am planning to use a slab on grade system with thickened edge. My question is 1. should we provide a continuous insulation layer under the entire slab or should we insulate only at the edge of the wall and extende it out a...

Hi all, Our firm just got some RFP's for industrail ( pipe racks, catwalks,etc.) projects to be located in Alaska and Nevada. The principals of our firm are registered civil engineers in many states in the US but not Nevada or Alaska. They are planning to get registered as a civil engineer in...

Thanks everybody for your valuable information. I determined the eccentricity and the eccentricity falls within the kern limit when the tank is full but when the tank is empty the eccentricity is way over the kern limit which means I will have to reduce the area of the footing. how do i...