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  1. micks87

    Deflection limits of a TV sign

    Hi All, Any thoughts on deflection limits for a large TV sign mounted in a stadium. See attached crude image. I was thinking about H/100 to H/150. Does anybody have an SLS reference for such a structure? Cheers...
  2. micks87

    Seawall Design

    Hi gents, Does anyone have any references for seawall design guidance? New Zealand reference would be good but any guidance would be appreciated. Thanks Micka
  3. micks87

    Tiered cantilevered block retaining walls

    Hi All, I have two questions. 1) tiered retaining walls. Discussion in the office today yielded, the easiest way to analyse the tiered walls is to design the lower wall assuming it was retaining the full height. See sketch attached. This example has a lower wall height of 1.8m and a upper...
  4. micks87

    Cantilevered timber poles supporting timber Deck

    Hi All, Really simple query,what deflection limit would you use when designing cantilevered timber poles supporting a timber deck. As the decks as sitting on posts / poles (2.4-3m high), they may be some apparent sensory vibration. Traditionally, the 'codes' [Aus/NZ] here do not give any...
  5. micks87

    Elastic Resistance to Lateral Buckling (Appendix H - 3404)

    Hi, I am trying to design a warren truss using the elastic buckling method as described in Appendix H of NZS3404. I have heard this method produces more efficient results but I am unsure of how to implement this. Does anyone have an example of how this applies to a truss member? To add some...
  6. micks87

    AS/NZS 1170.2: Local Pressure Factor for SLS

    Hi All, A few engineers in my practice have different views of using KL factors when designing roof purlins. No doubt, the code ask for kl factors to be checked when assessing the ULS capacity of the purlins. What about for SLS? We have had situations where we have had a kl of 1.5, and as...
  7. micks87

    Plotting Response Spectrum

    Hi Folks, I am quite new to earthquake engineering and was hoping someone could help me out. I am looking at the El Centro 1940 quake and trying to plot the earthquakes response spectrum. I am using excel. At this stage, I have plotted Acceleration v Time, Velocity v Time and Displacement v...
  8. micks87

    RE: Modelling Earthquakes in Microstran V9

    Hi Guys, This is quite a basis question basis, but I am trying to model an earthquake using the data from Geonet (NZ). If there is a better source of information I would appreciate it. Can anyone please give me a run through on what exactly I have to do? I work in a small firm and nobody has...
  9. micks87

    Job Costing

    Hi All, I have a question in relation to costing / quoting and estimations for structural jobs. Currently in NZ, the work is pretty good and constantly busy. I have spoken to other engineers and they are suggesting a percentage fee based on the gross cost of the structure? Is this common...

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