Hello, please see the picture attached. A page from example 8.4 of AISC Seismic Design Manual Pg8-21. I'm trying to understand what does the statement below the calculation mean: "Note a mechanism needs to be provided to transfer the force from the slab reinforcement into the structure" ?
https://res.cloudinary.com/engineering-com/image/upload/v1596813022/tips/Built_Up_section_weld_size_oogrto.pdf
Please see attached sketch, How to size the weld between the added 1 ¼” plates and the standard wide flange section? Thanks!
Hi,
Does anyone know if we can ignore resistance factor (Φ=0.9) in LRFD when designing steel members for fire conditions per Appendix 4? If so can someone point me out the exact reference?
Hello, I am looking for a software that is reliable enough to do multi story RC Columns rather than going old school and calculating trib areas from drawings for each column and then designing them separately in SP Column. Any inputs or thoughts shared would be beneficial ? Any good or bad...
The gravity column design interaction equation H1-1a in RAM SS does not account for the Mux/(0.9Mnx) in the unity equation. Why is that ? Please let me know if someone has faced the same issue. Thank...
Hey guys, I'm doing a thermal analysis in Risa 3D. I have a couple of questions :
1. What direction is the thermal load applied in RISA? I know it has "T" direction symbol to apply a thermal load. But when applied in the model it shows that the load is applied in the downward direction. Can...
Hey,
I am wondering why the deformation response is the same for buildings higher than 10 secs natural period of vibration. Anyone could help? Thank youhttps://files.engineering.com/getfile.aspx?folder=58f241b2-1c43-4481-a4ed-65969f01f1b4&file=Capture.PNG
When we design steel gravity column design do we need to consider the drift induced moments in the steel gravity column? I'm modelling the steel in RAM Structural system and I don't think RAM does it since I don't see any moment in the gravity column. Please let me know. Thank you
