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Recent content by ENGJP22

  1. ENGJP22

    Development Length in Seismic Regions

    Hi guys, hope you are okay, I have this Situation, the ACI 318 indicates a equation in chapter 25 to calculate development Length (ld). There's a factor that's used to account the effects of casting position when there's more than 12in of concrete below the bars, this factor is 1.3. This...
  2. ENGJP22

    Hook Development Length

    Hi guys, I have been checking ACI 318-19 and I noticed that ldh in chapter 25 has changed from previous code Versions. Neverthless, ldh in chapter 18 that it's derived from the one in section 25, has not been updated so the equation in chapter 18 isn't valid
  3. ENGJP22

    Merge Analysis Results

    Hi guys, I have differents models that I want to merge, so someone told me there's this option in etabs that goes by "Merge Analysis Results", but i dont find any information about how to properly use it, do you guys know anything?
  4. ENGJP22

    SMF Beam-Column Joint

    Hi, yes, thats how I think it should be done but the ACI doesnt explicitly says that we should do it like that, I dont know if there's some section within ACI-318 that says it.
  5. ENGJP22

    SMF Beam-Column Joint

    Hi, something like this
  6. ENGJP22

    SMF Beam-Column Joint

    Hi everyone, I have this doubt, when we are detailing a Beam-Column Joint at roof level in a SMF, whats the proper way to do it? The literature that I have read, doesnt show this kind of case and the ACI doesnt explicitly tells you how to do it. The longitudinal top reinforcement of the beam...
  7. ENGJP22

    Force - Deformation Curve - ASCE 41-17

    My bad, I didn't explain myself clearly, I'm using Etabs to construct a M3 for a moment frame, the value of scale factor that the use for point C is 1.27, at first I Thought it should be 1.10 like you said, but I dont know why they use that other value
  8. ENGJP22

    Force - Deformation Curve - ASCE 41-17

    Allright! what would it be the case for W Shape, ASTM A992?
  9. ENGJP22

    Force - Deformation Curve - ASCE 41-17

    Hi, I'm trying to construct the force-deformation curve described in ASCE 41-17 in order to do a pushover analysis, but I'm finding trouble trying to understand how to calculate point C in the graph, could tell whats the correct approach?
  10. ENGJP22

    Stiffness Modifiers

    Hi guys, I have a question, when designing AND analyzing elements in Etabs we use stiffness Modifiers to model a cracked section, should we do the same while designing floor slabs in SAFE? Thks in Advance
  11. ENGJP22

    AWWA TANK DESIGN

    is it ok to take the Moment and divide it by the diameter of the thin wall cylinder and assume that a half o the cilynder is in compression and the other half in tension by dividing that couple force by one half of the perimeter of the circle?
  12. ENGJP22

    AWWA TANK DESIGN

    Hi guys, I hope you are okay, I have a question, Im designing a steel tank per AWWA, there is an equation to calculate de compression stress in the shell, they are using the overturning moment and the seismic vertical component, but I wonder why in the portion corresponding to the overturning...
  13. ENGJP22

    Max Spac in Reinforcemente

    Hi guys, I hope everyone is ok, I have this question, I been looking for a max horizontal spacing between flexural reinforcement, is there any limitation for that? I have a beam with a 40cm width and the contractor want to use two #8 bars instead of three #6 bars due to availability but I'm not...
  14. ENGJP22

    Joint Shear Design

    Hi guys, I have this problem I'm trying to calculate the joint shear of a structure in ETABS 2019, but when I assign the longitudinal reinforcement to the beam the program shows NC (Not Calculated) in almost every joint, if I left the program to use the reinforcement required by analysis it...
  15. ENGJP22

    Buried Tank

    Hi guys, I have a buried concrete tank that has to be capable of resisting the load transfered by a truck that could run over the top slab. I want to know what's the proper way to account the wheel reaction of the truck on the slab. The top level of the slab is the same as the road level...
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