That photo is really hard to see what you are describing. Could it be freeze and thaw of moisture in the blocks? Have the blocks been saturated for long periods of time? In my area I have seen shells of block erode from both things above. I would think if the loading was so severe the shell...
I am working on a retrofit/ remodel of an existing structure. I have the original shop drawings for the steel framing. I need the properties for a 10H3 and a 12H3. The load tables will work as well. The 10H3 has a span of 15' and the 12H3 has a span of 19'.
A topic of many a conversation!!
I agree the scissor truss application will likely result in forces that can not easily be managed.
Table R802.5.1 is for rafter spans assuming ceiling joists are installed, see Section 802.3.1
Foot note "a" of the R802.5.1 describes adjustment factors for...
Not sure where 30 psf/ft came from. ASCE and the IBC prescribe a minimum of 35 psf/ft for washed stone type fill, the footnotes will require an even higher load, but IMO an over design. The prescriptive design of the IBC (connections) does not transfer the stresses from the foundation wall to...
I am new here, but here is my two cent. Section 2306.3, Wood Diaphragms, outlines maximum shear loads in pounds per foot of horizontal wood diaphragms (framed floors). If this section is applied to the design of the floor diaphragm the loads will likely exceed those prescribed in section...
