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Recent content by n39

  1. n39

    FEMA P-2082-1 2020 Edition - Figure C12.3-6

    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...
  2. n39

    Redundancy ASCE 7 - 17 Clause 12.3.4

    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...
  3. n39

    B/C ETABS

    What does major and minor mean?
  4. n39

    B/C ETABS

    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...
  5. n39

    Pile Eccentricity

    I just realized the mistake here, my assumption is wrong. Thank you for your correction
  6. n39

    Pile Eccentricity

    I'm just wondering if someone could tell me if I did the calculation correctly. Thank you
  7. n39

    Removing formwork and shoring

    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...
  8. n39

    diaphragm design

    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...
  9. n39

    diaphragm design

    Do you know how to make free my other column from the influence of irrelevant diaphragm in ETABS?
  10. n39

    diaphragm design

    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...
  11. n39

    Commercial Moment Frame Mass Building

    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
  12. n39

    Commercial Moment Frame Mass Building

    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...
  13. n39

    Structural Job

    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...
  14. n39

    Structural Job

    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...
  15. n39

    Structural Job

    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...
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