The attached picture is from ETABS video regarding sequential construction modeling: https://www.youtube.com/watch?v=oi2rdht_pZY
The left and right images are identical (same structural members and loads), except that the left image is considering the entire structural as a whole; while the...
This should be a quick question for the experienced CMU forks.
In ACI 530, par 3.3.4.1.1, to determine the axial strength, we need the h/r ratio. I tho the r should be the r-net, because usually net sectional properties are used for stress/strain computation, while average sectional properties...
Doing a building extension design for a 4-story building (40ft/12.2m height).
Existing structural is a closed CMU building 33ft x 20ft (10m x 6m) dimension.
Extension is to be done by knocking down one side of the CMU wall and extend into the back yard for 14ft (4.3m). A steel moment frame is...
Load Combination 5 and 7:
1.2D+1.0E+L+0.2S
0.9D+1.0E
where D is defined as simply "dead load" and E = earthquake load, calculated as following:
E = Eh +- Ev = pQE +- 0.2SDSD
where QE is the effect of horizontal seismic effect, and 0.2SDSD is the vertical seismic effect.
Now, suppose designing a...
Hello.
Many masonry buildings in big cities, such as New York, are narrow rectangular shape. The interior floor joists/beams typically runs along the short direction, supported by the wall. So, the long direction wall is a bearing wall + shear wall, while the short direction wall is none load...
Designing the connection between the column and the base plate. The column is modeled as pin connected at the base. The column is designed for primarily gravity load, but need to resist some shear due to lateral loads.
There are a lot of design guides out there about how to design the base...
Designing a T beam subject to flexural load and very small axial compression load.
I calculated the axial capacity of the beam as a whole T beam according to AISC Spec and it's much larger than the load (28kips > 1kip factored load).
But then I'm worried because the beam is connected thru web...
