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Source: NEHRP Recommended Seismic Provisions for New Buildings and Other Structures (FEMA P-2082-1) 2020 Edition - Figure C12.3-6 Hi, I've been learning on how to check on redundancy properly and came across this helpful flowchart from NEHRP. I have 2 questions though. 1. As far as I know, ASCE...

Hi, I was developing a method to easily check for redundancy factor in my structure. I need some advice or input or correction if any of my understanding are wrong, and if I can use this method to check for redundancy. Thanks "Loss of moment resistance at the beam-to-column connections at both...

What does major and minor mean?

Hi, can someone please help me to understand what is B/C major and minor in ETABS I have a column that has 0.794 ratio in major and O/S in minor. 1. What does the number 0,794 represent? I know that Mc/Mb should be 1.2 in SMRF, so does that mean that my B/C, maj is okay because it is less than...

I just realized the mistake here, my assumption is wrong. Thank you for your correction

I'm just wondering if someone could tell me if I did the calculation correctly. Thank you

Hello guys, I was wondering about the removal of formwork and shoring. I look up on ACI 318:2019 and they only mention to look it up on ACI 347, and so I did and found this (image above) Does this mean that if I have a beam with a 7 m span where live load > dead load, then the formwork and...

Thank you everyone for replying I've done some trial and error and came to a conclusion. The red diaphragms will affected column2 and vice versa. But since the building with green diaphragms is much more stiffer, some of the seismic load from red diaphragms were absorbed by the green diaphragms...

Do you know how to make free my other column from the influence of irrelevant diaphragm in ETABS?

hi everyone, I was working on a job in which there are 2 types of building that is going to be held by one column. They both were adjacent to each other and were connected structurally. So, as you can see, both of the building have different slab elevation. My question is: 1. I modelled the...

For further information, the column capacity to its axial moment ultimate load (PMM Ratio) is less than 1 for individual separate analysis, and if I combine both building shown in picture 1. But the PMM ratio increase significantly to more than 1 in the picture 2

Hi everyone, I got a job with a plan like this Basically there are 2 types of building, with width 5m and width 7 m. Please correct me if I did something wrong with my step of designing. 1. First I separately make 2 ETABS model, each for width 5m and 7m. And make sure my design is proper 2...

LittleInch Thank you for your responses, it was really helpful. ThomasH I guess, I'm going have to agree with LittleInch that asking a pipeline engineers is better solution. HTURKAK I will make sure I check on the books and codes you have suggested. Maybe it can give me some insight whether...

They were asking to calculate for the stress pipe, I was thinking using ABAQUS to calculate the stress on the pipe due to soil. But I have narrow knowledge about soil, and I am not sure I will be able to calculate it. But what you said is correct, this kind of work falls in the grey area between...

Hi everyone, so I met this person who wants to consult to me about something. As a structural engineering, I have no idea what kind of "structural" check needed to be done in this sinker pipe lines. It was obviously placed underground, and no structural components were holding it. If it was...

Not me, but some individual out there or somewhere in this world, there must be exist a connection like the image above. And there is no harm in gaining more knowledge

Hi, I found this image on google and was wondering if anybody can provide me with some example of the calculation or a book/journal that can explain it. How was he able to come up with that thickness and numbers of bolts, etc. HoHow do you design this type of connection? A calculation sample...

I don't think it is bending tomfh, I've drawn the 3D to help visualize the image above If the load was applied at the green area, yes that is bending and I can do a simple beam analysis But the load was actually applied on the yellow part of the beam, what kind of analysis besides strut and...

No I haven't, is there other way besides the strut and tie method?

Hi everyone, So I was having this problem with a canopy design. The overall design has been checked, I use a 250/450 cantilever concrete beam for a span on 1650 mm and use a 200/800 beam to conceal the beam behind it for aesthetic purposes. The architect wanted to put a canopy there, just...