Does anyone have experience with using wood framing with only a European grade, (C24) for use in the united states. No US grade has been assigned to it.
It appears Europe just uses grade tiers, and no necessarily species for grouping their wood into properties. C24 relates to the Fb, ie C24...
I have a structure where a few of the common discussion on here are converging on each other and I wanted to get opinions on my approach.
• I have a long span (70’) mono sloped trusses with the top and bottom chords at different slopes. The trusses are bottom chord bearing and spaced at 7'-0"...
Most APA documents and some manufacturers indicate that end joints should be staggered when installing floor sheathing. The one exception that I can find is in the floor diaphragm capacity charts where they list six layout patterns including several with the end joints aligned. Is the...
I am working on a project where the builder cannot get WWF for a composite slab on metal deck and they want to use a synthetic fiber mesh as a substitute. Setting other issues aside, I cannot seem to find anything about how this would influence the deck as a diaphragm. The SDI literature...
It is common for geotechnical reports to list Net Allowable Bearing Pressure for a recommendation for building foundations. When using these recommendations for standard site retaining walls, would an increase in the bearing pressure be acceptable? ie increase the bearing pressure by the depth...
Is there any provision in ACI that allows rebar to be exposed, or to have reduced cover for small portions along its length? For instance if I wanted to trench the top of a slab 1/2" deep x 2" wide, perpendicular to the top rebar to install some electrical lines? I would actually prefer a...
Most of the UL rated floors involving composite metal deck include a steel beam w/ fireproofing as part of the assembly. Can the slab be supported by something other than a steel beam to be acceptable, for instance, a CMU, Light gage, or concrete wall? Is the beam a requirement for the assembly?
In the 2015 SDPWS, Section 4.2.5.2 Open Front Structures. the paragraph begins with "For resistance to seismic loads". The 2008 SDPWS does not specifically list seismic as the type of load. Why was this section changed to be specifically for seismic, and why does it not define limits for wind?
Locally we design office floors for a live load of 100psf. When evaluating a floor for new loads hung from the floor above, is there any code guidance on how much of the floor above live load can be allocated to the tenant below the floor? IE is the floor live load all load applied from above...
I have a load bearing 8" CMU stair shaft and the wall has a 2-hour rating. For steel beams sitting on the wall I typically just use a standard beam with bearing plate. I have been asked to keep my steel, bearing plate included, 4" from the inside face of the wall. 4" being the minimum masonry...
I have a couple of town houses and duplexes that because of their size fall under IBC. They have roof decks/terraces and I would like to design these for a Live Load of 40psf. I am going to hang my hat on the on IBC Table 1607.1, Residential, One and Two Family Dwellings, All other areas =...
In my area it is not uncommon for below grade garages to have CIP basement walls with the bottom of the walls braced simply by the slab on grade. Typically with an isolation material between the wall and slab. When the garages are 3 or 4 stories deep the reaction at the bottom of the wall is...
We have a project where we are taking out a column in a steel office building and supporting it with two new transfer beams supported by two new columns. We have an engineer in the office who likes to pre-load the beam for dead load in these situations (sit the beam in place, jack up the...
I have a 2 story steel frame building that we are renovating. No existing building drawings are available. The floors and roof are designed for relatively heavy gravity loads, but like a lot of steel buildings of its era there does not appear to be any defined lateral system. There are some...
I intend to keep flood waters out of a space (a large parking area at grade) with a flood wall. When if ever do I need to worry about the flood waters seeping below the wall and either imparting a buoyant force on the slab or simply flooding the space? Ie I don't want to spend the money on...
I have been ask by an owner for the number of inches of snow fallen on a roof that should trigger its removal. This is for a building that I designed and was recently completed.
The simple answer is to provide the snow load I designed for, in psf not inches. I feel like I have not exposed...
A code official has presented the attached detail for underpinning of an existing party wall. The detail was generated to preserve the neighbors ability to develop their property in the future by restricting the underpinning from extending into their property past the face of the party wall.
I...
I am trying to reduce a new snow drift load on an existing roof created by a building addition.
My question is, if I build several new parapets perpendicular to the wind direction spaced at a frequency so that the new snow drifts are small enough so that the existing structure works, can I...
I can go two years at time without detailing or drawing an overhead door support, hanging toilet partitions, vanity support, or movable partition hangers. Typically I get shops to review, I mark them up accordingly, and move on. But once in awhile I get the job where the GC RFIs looking for...
