I am working with steel street light poles. They are a round section that tapers down from a larger section at the bottom to a smaller section at the top.
For the overall compression capacity, we use the entire height of the columns and we use the properties of the pole at the mid-height of...
I feel like I'm missing something. All the time I am handed architectural drawings with city lot (not much width) open concepts plans and I look at the huge windows in the front facade and the double patio door at the rear and nothing for walls in the middle and wonder where the shear walls or...
I have a situation where I recently did an observation of a new construction house that had walls that were significantly out of plumb. I provided observation and recommendations for the potential buyer and another engineer provide observation and recommendations for the seller who was the...
I have a residential property. New construction. 10ft basement walls, 10" thick, reinforced. It appears they placed the walls as much as 4 to 5 inches over the height of the wall out of plumb. All of the out of plumb is the walls tipping out at the top. What is the line where we say we have a...
Residential property concrete floor. It is segmented single hollow core T segments with grout and rebar between the members. The planks are not continuous. Please see the attached section sketch for some rough dimensions. Client looking to remove intermediate wall and I would love a span table...
We have been having a discussion at our office about who's responsible for the differential settlement recommendations for a building project. I have always been under the assumption (I hope not incorrectly) that the geotechnical report will take into account some reasonable information and a...
I recently was called to a situation where cracks were forming in a tile floor. I inspected and found 2x8's at 16" o.c. spanning 11.5'. I"m getting typical TL/240 and LL/360 deflections, so they are coming in at a reasonable place. I was exception to get borderline to over the typical...
I have solar panel attached to the roof on rails. How do I account for the wind loads. I have the upward pressure on the roof and that is definitely piece one. My questions is like a roof load do a add in the interior pressure for a total pressure? Since technically full wind can get under...
I have a situation where we have an interior shear wall that has 5/8" gyp board on both sides. The architect would like to use 1/2" sound board under the drywall. I know when you place wood panels over gyp board there is a reduction in shear capacity value. I would assume there is a reduction...
I have an existing building built in the early 1900's (I believe) that has what appear to be wood roof trusses. They are spaced 13' o.c. and span around 48'. The typical truss is around 6' deep and the top and bottom chords are (6) 2x11's. Between them are webs that make an X at 45 degrees...
We have a pole base plate with the corners cut at 45 degree into he anchor bolt holes on the base plate. It appears that these have been done for a reason. Is this just a fabrication thing? Is there a purpose for these cuts at the corners?
We have been checking street poles and other utility poles for new load. We are running into problems when we have typical fabric/vinyl banners. The increased wind sail area takes up a lot of capacity in a hurry. We are typically having to request that the banners be removed one side of the...
We have a project with non load bearing wood partition walls on and under wood trusses. We detailed the Simpson Connection that would support the wall out of plane, but had vertical slots to allow for deflection of the roof and floor trusses, so the non-load bearing walls would not become load...
ACI has ACI-301 that is their recommended structural spec that coordinates with the code and their other documents. I was wondering what the equivalent documents for Steel, Wood, wood trusses and CMU that could be used as a reference in general notes. Any help would greatly be appreciated.
I'm from outside the state, but have a project in Iowa. Grand Rapids if it matters. Just curious what the typical wood species that would be specified in the area. Hem Fur, Spruce Pine Fur, Douglar Fur, Southern Pine?
I have a situation where I’m monitoring a project as an owner’s rep. We have encountered a situation where the owner is requesting structural calculations to ensure an installation is acceptable. In doing this it has come to light in writing that the designers on this project took another...
I have a situation were it has come to light on the job I'm doing inspection work for that the contractor placed (3) #5 rebar all in one plane at the bottom of a standard 8" stem wall with only a max of 5/8" spacing. Per ACI-318 the requirement is a minimum spacing of 1". I'm not the engineer...
I'm working as an owner's rep on a project. I didn't design this project. After forms were removed from the foundation wall I noted a significant bow out in the foundation wall. This a typical foundation stem wall. It sits on a 12" thick footing and is 56" tall from the footing to the underside...
I'm working as an owner's rep on a project. I didn't design this project. After forms were removed from the foundation wall I noted a significant bow out in the foundation wall. This a typical foundation stem wall. It sits on a 12" thick footing and is 56" tall from the footing to the...
Just to make sure I'm reading ACI-117 correctly. I have a foundation wall below grade that is sitting on a footing. Since the Foundation section of ACI-117 only seems to address footings, can I move to the building section and use "4.1—Deviation from plumb
4.1.1 For heights less than or equal to...
