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  1. tps

    Golf Cart Bridge Design?!

    Whether or not you design the bridge for golf carts only, or other vehicles is dependent on the travel width you provide. Use the design maintenance vehicle loading if 2.4 m (8') or wider. Otherwise use the golf cart load (which is very light) and post the structure, if necessary, as to...
  2. tps

    Structural Expert Witness Fees

    Given that the subject is "expert witness", higher fees are indeed justified. The reason is that the witness should be considered a "specialist" in the area considered. Specialist fees use a higher multiple on staff rates. The analogy is you get sick and go see your Doctor...
  3. tps

    torsion in concrete beams.

    The torsion should always be checked. You mention calculating the twist/deflection. These parameters are typically calculated for "service" conditions, and should not be confused with "limit states". At "limit states" or ultimate strength upon which most concrete...
  4. tps

    Plywood Gusset Plates

    See "wwww.canply.org" for downloadable manual "Plywood Design Fundamentals" which will help you size the gusset. For fastening requirements I recommend the Canadian Wood Council (CWC) book "Wood Design Manual". Section 7.2 of the manual"Nails and Spikes&quot...
  5. tps

    Monolithic Concete and Slab Foundations

    I am not quite sure of what you mean by footing integral with slab, I hope you don't mean thickened edge. The column should be supported by a footing at some depth. In northern regions the frost depth is the minimum. The plan of the footing is projected up at 60 degrees. The weight of the...
  6. tps

    Tiebacks/ to find: Design publications,guides or tech.paper

    There is a publication called "Pile Buck: Steel Sheet Piling Design Manual" that provides example design calculations and theory with respect to tie backs. The publication is usually provided free from sheet steel fabricators. The Post-Tensioning Institute PTI and Dywidag Systemmes...
  7. tps

    Plywood Gusset Plates

    The "Canadian Wood-Frame House Construction" book published by the Canadian Mortgage and Housing Corporation (CMHC), phone (613) 748-2367 provides standard details for wood gussets for trusses of various span and loading. Current codes use truss fasteners (metal) and the provisions...
  8. tps

    Press Pit Design

    You asked for ideas and these are just that. Consider trenching and building the walls first. Conventional trench shoring could be used. Then excavate the pit after the walls are cast placing shores as required during the excavation of the main pit, if necessary for the final design...
  9. tps

    How do I find remote Heavy Const. projects

    The magazine Heavy Construction News lists upcoming projects and contract awards. Knowing the name of the Contractor who got the award is a place to start and they will be gearing up.
  10. tps

    Camber(Deflection) Calcs. for Balanced Cantilevers Made Continuous

    The PCI Bridge Design Manual will hopefully address your concerns soon as this will be Chapter 14 when completed. Another PCI book is "Segmental Box Girder Standards for Span-by-Span and Balanced Cantilever Construction". Check out the Precast/Prestressed Concrete Institute web site...
  11. tps

    Addition of Interior Bent

    Don't weld to the bottom plate. This will cause fatigue problems and some governing bodies won't allow it. See Fischer et al. An alternative for strengthening (beyond making the section composite) is to add dwidag bars to the beams which are connected to anchorages at the abutments (connected...
  12. tps

    Bridge Edge beams and Parapet fixings

    Welcome to Canada, The Ministry of Transportation, Ontario (MTO) has published standard designs known as "structural standard drawings" the ssd's provide details for various performance level barriers. The current designs are based on crash-tests performed by AASHTO. More recent...

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