Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: ooox
  • Order by date
  1. ooox

    Program for punching stirrups

    Ancon has shearfix: https://www.ancon.co.uk/products/punching-shear-reinforcement/design-program
  2. ooox

    Shear capacity of reinforced concrete

    For one way shear using the detailed method in ACI318, 'pw' is used in some of the equations which accounts for longitudinal tension steel, the simplified method for one way shear does not account for any steel.
  3. ooox

    ASCE 24-14 Direction of Wave Approach

    We're working on a project in Flood Zone VE and are currently looking at the flood design loads on concrete shear walls below the DFE. We have a number of wall generally orientated perpendicular to each other distributed throughout the structure but with sufficient clearance to allow for the...
  4. ooox

    Maximum Pour size for PT slab?

    RAPT, I know I'm based on the US where unbonded tendons is common practice, however, based on the OP's previous posts I assumed he was referring to bonded tendons and so the maximum tendons length I provided were based on PTIA's 'Practical Pretress Detailing' - are you recommending the values...
  5. ooox

    Maximum Pour size for PT slab?

    The maximum pour size is determined by site logistics how many concrete trucks the contractor can get to site before they need to stop. The maximum I've experienced is 1200m3 in a day For tendon lengths, about 30m for a band beam, 40m for a slab tendon. If you use double live end tendons you...
  6. ooox

    Transfer Slab - Combined One Way and Punching Shear Reinforcement

    Yes, I'm using the Wood-Armer method for twisting moments in the design strips, that's my default for all RAM models. I will try setting the program designed rebar to user deinfed bars. I've never done that before, but can see how this could this could help. Thanks Celt, you've been very helpful.
  7. ooox

    Transfer Slab - Combined One Way and Punching Shear Reinforcement

    ...At the moment I'm using the simplified shear formula but I'm intend to work up a spreadsheet to use the detailed method so I can justify the larger shear capacity. I'm also not considering Vu > 0.5*phi*Vcto see if I need to provide min shear reinf. as my 'beam type' is integral with the slab.
  8. ooox

    Transfer Slab - Combined One Way and Punching Shear Reinforcement

    Thanks Celt, My slab is 16" thick. I've ran some hand calculations to check the one way shear and it is required. The software is showing the shear reinforcement where you would expect it, and is consistent with my calculations. You can't double count the shear reinforcement - is this stated...
  9. ooox

    Transfer Slab - Combined One Way and Punching Shear Reinforcement

    I'm designing a transfer slab with no drop panels and I'm finding I need both one way shear and punching shear reinforcement which is something I never encountered before. I normally provide drop panels to avoid needing punching shear reinforcement altogether and so I just have one way/beam...
  10. ooox

    ACI code shear reinforcing question

    No - the critical section is considered to be at the face of the support - look at ACI 318-14 R9.4.3.2(f)for an example of your condition.
  11. ooox

    Solid Slab 10m span

    Where are the partition loads applied? 18kN/m is significant, I hope its supported on the beams. A sketch showing the framing arrangement and application of loads would be helpful
  12. ooox

    Creating Round Openings in an Existing Masonry Wall

    Reminds me of a story I saw recently - link
  13. ooox

    RC balcony on different level than the rest of the slab

    Aside from the obvious structural issues identified above, I've never seen a balcony slab set higher than the internal slab. I hope the architect has a tried and tested weatherproofing/waterproofing detail to handle this situation.
  14. ooox

    RC Core Wall

    Can't the same look be achieved with some furring channels and gyp?
  15. ooox

    Levelling plate requirement- steel structure

    AISC Design Guide 1 recommends a limit of about 24in to prevent issues with warping due to the thickness of the plate when fabricated, assuming a 1/4in. plate.
  16. ooox

    PTI Design of Post-Tensioned Slabs-on-Ground 4th edition RELEASE DATE

    If you're referring to PTI DC10.1 then I believe the latest version is the 3rd Edition which was printed in 2004 and then printed again in 2005 and in 2008 with a Supplement (still 3rd Edition). The 4th edition has not been published to my knowledge.
  17. ooox

    Foundation Design

    Sorry, you're right Jayrod...still haven't had my coffee yet
  18. ooox

    Foundation Design

    It would be 100kN/m^2 / 120kN/m = 0.833m. I would make it a 900mm wide footing assuming this can accommodate the total wall assembly and allow for some tolerance.
  19. ooox

    Foundation Design

    Your units are inconsistent, the party wall load should be in kN/m so you need to multiply the 60kN/m^2 by the tributary width on each side of the wall. The footing width would then be calculated by diving the allowable soil bearing pressure by the wall line load. If the 'ground bearing...
  20. ooox

    AS/NZ wind code software

    I think TEDDs has a wind loading calculator that works out design loads.

Part and Inventory Search

Back
Top