This idea was brought up by DaveAtkins in this thread: thread507-22707.
I have a configuration in a wood wind frame that will cause direct tension to act on a bolt (see attached file). NDS lists perpendicular bearing capacities for So. Pine at 565 psi. However, in the Dowel-Type Fasteners...
ACI 10.4.1 states that "Spacing of lateral supports for a beam shall not exceed 50 times the least width 'b' of compression flange or face." However, it makes no mention of bracing the compression flange, only "lateral" bracing.
I have a 8"x72" upturned beam supporting a 9" slab at the bottom...
I have seen control joints detailed with just a saw cut (usu. 1/5 to 1/3 of slab depth) and steel continuous, a saw cut with every other bar cut, and a saw cut with the steel discontinuous.
I'm relating to reinforced slabs on grade in Florida; we have primarily 2 types: 4" with WWM...
A current project has a 6" 2-way concrete slab supported by interior steel posts and 8" masonry walls at all exterior edges.
The contractor is pushing to lay the masonry block up to the bottom of the slab with no bond beam or tie beam.
I would like any input on this as I have not seen it done...
Masonry grout is supposed to be tested based on ASTM C1019 using a masonry block form to absorb water and simulate field conditions. But how often is this done?
We specify the grout meet ASTM C476 proportions. The testing company usually takes cylinders of the grout and completes breaks.
Is...
We have an ongoing debate in our company:
ACI 5.3.3.2; many concrete mix designs have the 3-point curves comparing compressive strength and w/c ratio. ACI requires:
1. combination of materials shall be those for proposed work.
2. trial mixtures have proportions and consistencies require...
We have an ongoing debate in our company:
ACI 5.3.3.2; many concrete mix designs have the 3-point curves comparing compressive strength and w/c ratio. ACI requires:
1. combination of materials shall be those for proposed work.
2. trial mixtures have proportions and consistencies require...
I need help translating from the Aluminum Design Manual.
Under Section 7. Welded Construction, one of the affected members are "columns or beams supported at both ends with transverse welds affecting their entire cross-section and no farther than 0.05L from the ends".
Of course, I am using a...
We do many jobs with driven concrete and augercast piles. Our detailing has always shown the pile embedded 4" into the concrete pilecap and the bottom reinforcing 3" above that (for 7" total cover). I believe it is more/less industry standard in FL.
It seems to possibly be dated back when...
I understand that typical masonry joints are at 24' on center in a wall. However, how does that impact the rest of the structure?
ie... A 500' long building that has 12' tall masonry exterior walls for a pre-engineered metal building. There is a tie beam at the top of the wall that is...
