Is there a requirement that moment connection beam flange backer bars be removed?
If so, do the welds require a specific treatment or reinforcing?
The applicable general code for the project is IBC 2009 in the USA.
Any references on the topic would be helpful.
Can a column cap plate be used in place of the top stiffeners in a beam to column rigid frame connection at the top of the column?
I think that the beam top flange to cap plate weld would need to be a fully developed weld but how would the cap plate to column welds be determined?
Would the...
Does anyone provide slab to slab dowels for slab on grade garage floor slab joints?
I've recently seen a highway slab detail that provided smooth dowels but it seems like that may be related to frost movement and heavy repeated loading.
Should "design" or "ultimate" coefficient of friction be used to input into Code related load combinations?
A Code in mind also requires a SF of 1.5 after running the numbers.
I should add the the difference between the design and ultimate values is a factor of 1.5
What would be the requirements and construction difficulties generated by having a soil shear key on the bottom of a retaining wall footing?
In designing a retaining wall with substantial lateral loading it is difficult to get a design with a reasonable footing width due to the sliding safety...
Doe the IBC allow reducing wind loads on metal studs for deflection checks?
A vendor claims that the code allows it but it seems counter intuitive to reduce a code derived loading and then apply the reduced load to a specified deflection.
Is there a requirement for minimum bolt gage for connecting to wf column webs?
Understandably perpendicular bolt clearances are of interest but with angles welded to the beam, is there an AISC or other requirement on minimum bolt gage in the column web?
Running a connection program and it's...
There are possible "approved" fabricator special inspections (IBC 03, CT amd 09) exemptions but other sections, for example steel where certain inspections are required on welds and bolts.
Using the same reference, Connecticut amendment to the IBC notes that exemptions do not apply to "Steel"...
Would nails have any shear value if installed through framing outward into the plywood sheathing with the head on the framing side, not the plywood side, and the nails not protruding from the sheathing so they can't be cinched over?
How are penetrations in a wood stud framed shearwall dealt with?
Do drilled pipe or small square penetrations, say for switch boxes, present a problem?
How would those be analysed if allowed?
Is it appropriate to use engineered wood, parallel strand lumber, as a tension member?
There are a couple of manufacturers' softwares, one of which doesn't allow negative inputs and another that has a limit but without reason.
Are there issues with using the material in that manner?
If it's...
Does light gage diagonal bridging for wood joists meet IBC requirements?
The 2009 IBC notes that substitute metal bridging needs to provide rigidity equal to 1"x 3" lumber. That seems a tall order considering that metal bridging literature that I've seen notes for "tension only", implying that...
Understanding that the intention to combine the "horizontal" and "vertical" effects in the formulas ( E = pQe + .2SdsD) in each reference to attain the seismic "E" value to use in the load combinations, is it not redundant adding the .2Sdsx(D) back in when the Qe is the horizontal value, assumed...
Is there any method or material appropriate for restablishing bearing under column baseplates that have a slight gap under them due to either unlevel leving plates or tilted column bases that resulted after leveling up the erected steelwork?
I am referring to tapered gaps in the 1/8" to 1/4"...
Are there there limits on maximum amount of reinforcing bars used in masonry design?
There is something in the ACI but it's not very straight forward.
If the steel and masonry stresses work out below the allowables, would that meet the needed requirements?
Is it allowed to leave cmu insulation in cores having vertical reinforcing bars?
It would seem to me that it would cause a bond breaker to the cmu shells.
Unfortunately there often surfaces a conflict with the energy conservation part of the Building Code when we try to use a single wythe...
Are the design procedures used for carbon steel applicable to 316 stainless?
If so, where would references be found regarding the yield stress of 316 filler material?
Anyone use concrete admixture "water vapor proofing" in elevated slabs?
The concern presented is in regards to flooring failures in new construction from slab moisture content.
I have to design some masonry support shelf angles to be bolted to a foundation, and will potentially have soil contact on the bottom surface and could get wet from rain on the other surfaces if the mortar or caulking fail.
This is about 5 miles to the ocean.
I initially though 304 or 316...
