When checking the reaction forces I found that there were a few points numbered as negative (like -100) by ETABS, and more wired was that I got force reported at these negative points, the total force including these negative points was balanced with applied loads. However, no such negative...
I have a shear wall which has a 5ft by 7ft opening on each floor, we used a link beam with has 10ft depth to connect the opening. Now I need to design the concrete beam, anybody has ideas how to design it? Is the beam to deep? Can I design it as shear wall rotated 90 degree? Attached is a sketch...
JAE: The section 10.5 states the minimum reinforcement for temperature and shrinkage. I agree we need that reinforcement. My question is that if I already have a #4@12" mat everywhere at the BOTTOM of slab, do I still need to provide minimum reinforcement for temperature and shrinkage at the...
StructuralEIT: Yes, I have #4@12" mat on the bottom everywhere . So I need to provide reinforcement for the top slab since there is not mat everywhere.
csd72: The reason I asked a number of people because when I work for different projects, the project/senior engineers have different...
StructuralEIT: Yes, ACI requires to provide enough reinforcement for temperature and shrinkage. Here, since I already have a mat for the BOTTOM reinforcement. Do I still need provide enough TOP reinforcement for temperature and shrinkage?
Ok, maybe I didn't explain my question clearly. Now, I attached a pic. My question is that if the analysis shows that I don't need rebar to cover the stress line between column 2 and 4, do I need to provide minimum reinforcement at that location? I mean for the mid strip, I already have rebar...
Hi, I am doing slab design. I have a #4@12" mat for bottom reinforcement and no mat for top. If i follow the SAFE output, I will have no rebar for some stress lines. Qell, some senior engineers in my office said that i should provide rebar to cover every stress line for my slab. However, some...
