Some structural software accept specifying partial fixity for connections. What does partial fixity really mean?
Doest mean that the connection can resist some moment without allowing rotation or it allows some rotation before resisting moment or neither?
I am looking at an existing composite floor, a concrete slab on steel deck, to carry mobile selves which run on tracks. The deck is designed for 195psf and the tracks have a weight of 1000 pound per linear foot . How would you check this floor for this type of new loading. The tracks are 72"...
Hi all
I am wondering if it is OK to model a flat slab as a number of beams in two directions. How the forces differ in both cased.
The reasons for the question are:
1-I don't have a FE program to analyze flat slabs and,
2-Both the direct method and the equivalent frame method for analyzing...
We are desinging shear wall that will be supported on two caissons at the ends. My question is : how different this wall is from the one supported on a strip footing in terms of detailing steel bars?
Thanks for the help
Hi all
I am designing a concrete building that will have a future storey. I want to account for future splicing rebars. Can you advise me on the best way of doing this.
Thanks for your input.
Hi all,
When calculating snow accumulation, do you consider a mechanical roof unit elevated by 1.2m stub-columns same as if it is not elevated ?
Thanks to your input
You designed a beam carrying a UDL as fixed end connections. The shop drawings show the flanges of the beam bolted with a clip angle and welded to the column. (Typical right?). Now given that the holes are larger than the bolts, the ends will rotate if slip is not prevented. You compared the...
You are asked to design a four-storey building accounting for a future additional storey. You design the shear walls for five stories using a load reduction factor R=3.5 ( for example). The owner doesn’t know when that additional storey will be added. Obviously, the shear walls are over designed...