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Recent content by ltlyg

  1. ltlyg

    Why is the building code so bad ?

    frv... I couldn't agree more. Especially since many engineers beef up the design with extra material anyway to be conservative. I think Academia has to justify the expense of their research and of their positions. Let’s not forget too that there is money to be made by releasing a new code...
  2. ltlyg

    What is the maximum spacing between exterior deck boards?

    I'm using dried 4x12 timber planks on steel framing to make a commercial boardwalk / deck. I'm concerned that with timber shrinkage the gap between the planks might get too large. BUT, I cannot find a standard or code anywhere that gives a maximum spacing. Can anyone point me to a CODE or...
  3. ltlyg

    Madison Wisconsin Ground Snow Load in 1960

    What would have been the design ground snow load in Madison, WI in 1960? For the purpose of agricultural timber truss design, was the method similar to today or was there a standard design roof snow load that was used? I believe the Wisconsin Administrative Code would have governed at this...
  4. ltlyg

    Deep Excavation Earth Retension

    I have downloaded the demo version of Deep Excavation called "Deep 2008" retaining wall design software, but I'm not getting a good enough feel for the program from the limited demo. Anyone out there have pros and cons on this software. The link below gives product information. Any...
  5. ltlyg

    Cost increase from barge installation

    I'm not sure this will help but... Flexifloat, Poseidon, and Shoegart (sp?) are barge rental companies that I have experience with. Some rental companies will tell you how many barges you need for the crane wt., pick wt., and radius that you are at. After that costs come down to mobilization...
  6. ltlyg

    Aluminum 6160 T6 S beam: Finding Fbx and Fby

    I am trying to do a combined stress analysis on an aluminum S6 beam tf=~5/16 bf=~3 3/8 The aluminum is 6160 T6; Fy=40ksi. The beam has an unbraced length and span of 14'. I am unfamilliar with how to find the allowable stress of aluminum in the major and minor axis when the unbraced length...
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