In negative moment, the flange in T-beam has additional tension strength and no compressive block advantage (which is on the bottom), and many codes ignore the contribution of the flange in tensile strength. I guess Etabs ignore this too.
How about the compression block at positive moment in...
If a concentrated point load is acting on the midspan of a beam, the shear diagram would big shear in the midspan to support. Is this span called the Shear Span?
When designing a beam. How much do you take into consideration the shear span to depth ratio and it's resistance to shear?
Do you...
Has anyone tried this?
The roofdeck will be topped off with 2 inches of cement. How heavy are cement compared to concrete with gravels? What is your experience on putting 2 inches of cement on top of a waterproof membrane (if structures can support it?)
What happens if you use chipping hammer on edge of beam and slab to make a hole in the slab to fully wrap around the beam a carbon fiber sheet? Would chip hammering the edge damage the beam? For those who have used chipping hammer before, what do you think?
What do you think about steel plates epoxied (full structural epoxy) on sides of beam for shear strengthening?
Steel yields and not brittle while FRP are brittle. So steel plates could be safer and more effective?
Can you see anything wrong with chipping the edge of slabs to enable hands to enter it and for carbon fiber to be wrapped around beams and then epoxy back (epoxy grout) the slabs avoiding cutting any rebars? Would this be as strong as original slab? Why and why not?
If your floor is for office... do you use 2.4kpa (50psf) or 4.8kpa (100psf)?
But for office vs commercial load. You have both people walking on the floor. What do you expect for commercial load that is not in the office load when you are calculating the live load?
How do you adjust the end offsets settings in Etabs so the beam support would have zero moments for just two columns and one beam model? The default is non-zero moments even from new installations.
How do you adjust the end offsets settings in Etabs so the beam support would have zero moments? The default is non-zero moments even from new installations.
Please see attached illustration.
For a beam that is 300mm in width and 500mm in depth. How necessarily is it to add hook within a closed hoop? How would it affect the shear resistance? For a wider width or column. It is necessary to restraint the core from dilating. But for a beam with only...
