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  • Users: M.IDR
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  1. M.IDR

    Detection of buried foundations

    There are equipments/sensors used to for rebars detection. I hope it would any different types available which will help detect concrete or can use rebars as an alternative for concrete footings. But still you need to have specific dimensions details of the footing to approve or take any decision.
  2. M.IDR

    Help solving this equation please?

    Yes, if you have a rigid joint you should account for rotational stiffness. Time is far more precious than you can imagine.
  3. M.IDR

    Requirement of expansion joint in irregular Shape building

    Two Stories with expansion joint would make it more vulnerable than stabilizing and have economic effect. Time is far more precious than you can imagine.
  4. M.IDR

    Requirement of expansion joint in irregular Shape building

    Time is far more precious than you can imagine.
  5. M.IDR

    Requirement of expansion joint in irregular Shape building

    Can You share Some pictures or sketch of your problem for better understanding. Time is far more precious than you can imagine.
  6. M.IDR

    Requirement of expansion joint in irregular Shape building

    I know the complexity a structure can be prone to, but you don't always have the choice to break the structure into separate components either atchitectural requirements or geometeric requirements. Time is far more precious than you can imagine.
  7. M.IDR

    allowable settlement for substation equipment

    These type of equipments are not that sensitive to have any worst kind of effects in case your foundations are within the allowable limits. If you are worried or your substation Electrical engineer would discard your design when are having settlement of about 25-50mm depend on your type of...
  8. M.IDR

    Requirement of expansion joint in irregular Shape building

    Well it should not be necessary but could be preffered to place expansion join, Incase you performe proper analysis to assess the dynamics of the structure by performing the required type of analysis as specified by your code. Time is far more precious than you can imagine.
  9. M.IDR

    Compressive strength in ACI code is it related to Cylinder or Cube

    When it refers ASTM C39 which is based on concrete cylinder so you don't need to confuse youreself with cube strengh because cube strenght is refered in EN or BS Codes. ASTM C39 specify the compressive strength based on avg. CYLINDER testing of two 150x300mm or three 100x2000mm cylinder...
  10. M.IDR

    Truss Multi-members connection at column support

    I do think in ideaStatica I could model it. Time is far more precious than you can imagine.
  11. M.IDR

    Truss Multi-members connection at column support

    I had something on my mind, shown in the sketch below, 1. I don't think RAM Connection can handle this type of complex arrangment of different members connection 2. I don't think of it as that much complex, however i was more concerned with presenting to client in case he ask for calculation...
  12. M.IDR

    Truss Multi-members connection at column support

    Hello Engineers, Have you ever design a connection of multi steel members connected as shown in the figure. Well the problem is not to make the calculations but how to make calculations quickly? What kind of calculation pattern/method would you like to follow to submitt calculation report in...
  13. M.IDR

    [Tall building with high torsion at mode shape 1 and 2]

    Hello Can you show the diaphragm, on Plan, also tell us about what is your mass source? Also let see what is the torsional situation like give us some value?
  14. M.IDR

    Shear Wall Structural detail for Seismic design (special Boundary Element detail)

    There is a confusion about the designing and detailing about shear walls A 21 Storied Building has shear walls and moment resisting frame. Structural system selected as "Dual System", while analyzing the shear wall in a FEM software it requires "Special boundary elements" because the stress...
  15. M.IDR

    Truss Members Continuity Modeling in Structural Design Software

    Excellent Idea, but this System is Not Gravity dominant, Even I already Tried that Arrangement of members as well as shown in the figure but its results are conservative than the other having longer braced length one and will be possibly in compression when Gravity loads are dominant,
  16. M.IDR

    Truss Members Continuity Modeling in Structural Design Software

    While Releasing the system the way it should be, still give Uneconomical Results? I think the system should be only design for the Axial Forces only as looking at the sections in the Truss they are very much flexible to flexure so considering it to transfer bending moments at the joint is...
  17. M.IDR

    Truss Members Continuity Modeling in Structural Design Software

    @JoshPlumSE Yes it seems to me that Figure-02 is the correct option for modeling the Truss while additionally, incorporating hinges at the Top and at the Support between Top and Bottom Chord. @KootK Like you said, every where i looked for the analysis method of Truss it does not have Bending...
  18. M.IDR

    Truss Members Continuity Modeling in Structural Design Software

    @SteynvW Yes Exactly all loads are applied at Nodes only, Only Wind Loads applied shown in the figure below. Moment diagrams of members are shown. If the Members are only Designed based on the Axial Forces then the sections are light/economical, while bending moments involvements make the...
  19. M.IDR

    Null area load assignments

    @rscassar Null area in ETABS does not Transfer loads right?
  20. M.IDR

    Truss Members Continuity Modeling in Structural Design Software

    Hello Engineers, Modeling of Truss members as shown in Figure-01 have bending moments from analysis when the bottom chord is considered Continuous. As the truss members are usually pin joints, but due to continuity, the top and bottom chord are not considered to be pin with adjacent members as...

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