A 1980's facility with precast (maybe tilt-up) and vertical cables in the wall (see photo).
The exterior side photo is near the top of the 35' tall wall (bar joists/metal deck roof system, bar joists do not sit on wall).
Can also see horizontal deformed reinforcing bars.
Does anyone know...
Thank you all for replies. When I have visited sites to evaluate cracks in bricks at this type of condition, typically have seen the lintel bridging across the overdig. Again, thank you.
Asking about the pros/cons of footings for building garages (with slab on grade) behind basement walls.
Is it better to use a lintel from the basement wall to span across the overdig to get to good undisturbed soils.
Or is it better to step the footing up from the basement footing to the footing...
Existing building, with a room 20' wide and a 3-ply 18" deep LVL required (spanning from 8" hollow block wall to wall), for purposes of getting a 19'-10" long beam into the room, any ideas how to support the beam at the face of the block walls with minimizing eccentricity on the connection...
Have steel tubes ceiling/roof joists that are supporting an exterior canopy. On top of the steel tubes, plywood deck is attached. Between the tubes is rigid insulation/blue board. The bottom of the tubes is carsiding for a ceiling finish (carsiding = old railroad car look, a type of 3/4"...
For steel wire rope/cables used in structural applications (supporting structural members), what are the applicable safety factors is there a specification in AISC or AASHTO rather than purchasing the ASCE reference? I am interested in cable in a vertical application (tension only).
Thank you
For the 200 pound concentrated and 50 plf handrail/guardrail loads in the IBC, when designing wood members what is the NDS load duration that should be used? Ten minute = 1.6? Is there a NDS or IBC code statement that specifies the load duration?
Thank you
Thank you all for the informative replies. The timbers are only an architectural feature (i.e. a historic look). The structural deck will be sloped and spacers will be utilized. Any thoughts on attaching the timbers to the concrete deck? This is residential so probably 10-20 cars a day...
Have a residential bridge where wood timbers are to be the finish flooring/decking. The structure of the deck is steel beams supporting a concrete on metal deck. As far as the wood timbers are there any recommendations for longevity of the timbers. Probably want to put spacers (composite...
Have a residential bridge where wood timbers are to be the finish flooring/decking. The structure of the deck is steel beams supporting a concrete on metal deck. As far as the wood timbers are there any recommendations for longevity of the timbers. Probably want to put spacers (composite...
Regarding ASD and Strength Design for Masonry (ACI 530-02):
For ASD the allowable tension (when masonry controls) is Ba = 0.5 * Ap * f’m^0.5
For Strength Design the nominal axial tensile strength (when masonry controls) is ? Ban = 4 * 0.5 * Ap * f’m^0.5
The difference is a factor of 4.
With...
What material property for concrete reinforcement steel would have been used in the central U.S. in the mid-1940s?
I know the ACI36 states 20,000 psi but am wondering if there may be a possibility that 40,000 psi was used in the mid 1940s (World War II era).
Thanks
