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  • Users: monchie
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  1. monchie

    Hello, Any sample calculation fo

    Hello, Any sample calculation for pocket foundation(Axial load + uniaxial bending moment). preferably Eurocode.Any help will be greatly appreciated. I search on the internet,all i can see is blah! blah! blah! and nice looking equation but actual calculation is not there:)
  2. monchie

    moment of inertia and modulus of elasticity

    Hello, Reducing modulus of elasticity of concrete by 50%, is it equivalent to reduce moment of inertia(ie, shear wall) by 50%? It arises in a situation, where a software, doesnt have the facility to implement in its analysis of building, of reducing its moment of inertia. For example ...
  3. monchie

    shear wall stiffness modifiers

    Hello, I came across on how to adjust SM of shear walls,pls. see below; "Typically I initially assign a 1.0 factor to f11, f22, and f12 along with a 0.01 factor to m11, m22, and m12 (so that the shearwall essentially has no out of plane stiffness and acts as a classical in-plane only resisting...
  4. monchie

    Seismic Load Combinations

    Hello, I've seen a documents "Manual for the Analysis/Design using ETABS" by ATKINS(pls. see attached screenshots). According to the documents the load combinations are based on UBC 97/ASCE-7. Flicking the pages of UBC 97/ASCE-7-05, there's a discrepancy on the factors used. Also, load...
  5. monchie

    ref point/planes

    Hello, I have a couple of questions regarding ref. points/planes. 1. How do you delete re. points/planes when you do not need it anymore. * I've tried opening the model in text file but still the re. points/planes are still there. 2. Can you replicate slabs in ref. planes? *I do not...
  6. monchie

    rendered view

    Hello, Why I cannot see window/door openings of rc wall in "rendered" view? Is this really the case? Any ideas will be greatly appreciated.
  7. monchie

    Edit stories

    Hello, Pls. find attached screenshot. I cannot find similar dialog box(ETABS 2013)to edit stories that is common to ETABS 9.7.4. Any help will be greatly appreciated. REgards,http://files.engineering.com/getfile.aspx?folder=d2c57e36-392f-4fd7-a072-c4271c2ad4a6&file=edit_story.jpg
  8. monchie

    strange frame deformation

    Hello, I have a simple 2d frame with horizontal point loads. I'm just wondering why I have a strange deformation an huge displacement. Pls. see attached file. Any help will be greatly appreciated...
  9. monchie

    section designer(spandrel rc beam)

    Hello, I've modelled an rc beam(spandrel rc beam-pls. see attached plan and file) . I noticed that when I run the design and look for its summary it doesnt give the "moment capacity" of the section. Also, I noticed that in calculation sheet, the spandrel beam was referred to as a "column" not...
  10. monchie

    tower crane bracing loads

    Hello, In Eurocode, how do we categorize the tower bracing loads in combination with wind loads in temporary condition. Do we assume that the"tower crane brace loadings" as accidental(ie, 1.0 DL + 1.5 WIND + 1.0 ACC1, etc.)? Any help will be greatly appreciated.
  11. monchie

    self wt. of thread on the stair

    Hello, I was upset this morning for a simple reason that I cannot prove to myself that the self-wt of the thread of a stair is,THREAD(sw) = 1/2(R)25. Assuming that the going/rise dimensions are 250mm/175mm respectively, and the wt. of concrete is 25 kN/m3, then, THREAD(sw) = 1/2(.175)(25) =...
  12. monchie

    strut and tie modelling

    Hello, I am studying the concept of strut and tie method and modelled an rc wall and try to figure out the correct truss model for the STM. I have the following questions; 1. How do you normally size the strut? looking at some examples, if the point load is coming from the column, it is quite...
  13. monchie

    ASCE 7-10

    Hello, With the load combinations in ASCE 7-10, pls. see below 1. 1.4(D+F) 2. 1.2(D+F) + 1.6L + 0.5(Lr or Sor R) + (0 or 0.9 or 1.6)bH 3. 1.2(D+F) + 1.6(Lr or Sor R) + ((0.5 or 1.0?L or 0.5W) + (0 or 0.9 or 1.6)bH 4. 1.2(D+F) + (0.5 or 1fW + (0 or 1 or 2fFa + (0.5 or 1.0?L +...
  14. monchie

    long-term deflections

    Hello, How do you get long term deflection result for RC Beams in ETABS?
  15. monchie

    rc beam reinf(EC2)

    Hello, I'm just wondering why the reinf areas formula to EC2 in ETABS is different to IStructE manual(EC2). The former gives more reinf areas in the process(pls. see attached screenshot). Any ideas will be greatly...
  16. monchie

    point load on rc wall

    Hello, Is it possible to have point load on top of an rc wall at a certain distance?If yes, How? Regards,
  17. monchie

    ETABS 2013 in Windows XP

    Hello, Does ETABS 2013 really run in windows xp? I've tried installing it but I received an error saying "...it is not a valid win32 application.." Any ideas will be greatly appreciated. Regards,
  18. monchie

    rc beam design (Eurocode)

    Hello, I'm designing a simply supported rc beam(450x750dp) with effective span of 16.30 m.(pls. see attached loading and shear&moment diagram). If I used the criteria of "allowable span to effective depth ratio" it is failing. But when I consider the actual deflection = 27mm < L/250, it is OK...
  19. monchie

    overturning&amp;resisting moment(shear wall)

    Hello, Pls. find attached sketch of a shear wall. The resisting moment(Mr) is obviously much bigger than the overturning moment. If this is the case,then, wht is the net resulting moment? Does it mean that the wall will only act generally in "compression"? Any ideas will be greatly...
  20. monchie

    corbel design spareadsheet(eurocode)

    Hello, Is there any corbel spreadsheet design to eurocode in the market today? regards.

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