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Recent content by m1208

  1. m1208

    Redwood beam bending stress

    I could not find 6x12 pressure treated in our area. Are there any listed bending stress values for pressure treated beam of 6x12? If we use glulam, how do we make sure that is for exterior use, subject to rain, when they deliver it to the job site?
  2. m1208

    Redwood beam bending stress

    I have an exterior second story wood deck and need to replace the existing 6x12 (22' long) wood beam. I like to use redwood beam to prevent dry rot issues. The only available beam type in our area is 6x12 redwood, con-heart grade. For design, I need the allowable bending stress for the 6x12...
  3. m1208

    ground water table

    Thanks for your comments. The zip code is 93555, Ridgecrest, CA. Basically i am interested to shallow groundwater elevations to monitor the moisture content of the concrete-slab floor.
  4. m1208

    ground water table

    I am looking for a website for ground water table elevations (approximate). At this time, we do not want to do the site explorer testing.
  5. m1208

    wood trusses subject to house fire

    I have a single story house with fire damage that started in the wall electrical panel. The manufactured wood trusses in the attic space are approximately 30 feet long and spaced at 2' on center. I see lots of smoke damage to the top chord and web members of the trusses, but no smoke damage...
  6. m1208

    Concrete-slab floor on grade, surface delamination

    I have a one-story building with concrete-slab floor on grade, with carpet flooring. The slab is approximately 40-years old. Recently one corner of the concrete-slab floor (by the exterior walls) shows sign of surface delamination/flaking. Any idea what may cause that after...
  7. m1208

    Thrust block for water pipe hanging from the bridge structure

    Thanks for the info. Yes the pipe has 45 and 90 turns. I will use the same equation but with some questions: 1. Is the Area of the pipe, inside or outside diameter of the pipe? 3. Is the water pressure A in the formula, actual working water pressure inside of the pipe? 4. Any factor of safety...
  8. m1208

    Thrust block for water pipe hanging from the bridge structure

    I have a new 14" (ID) ductile iron potable water pipe hanging from the bridge structure. The pipe is approximately 600' long, relatively horizontal, working water pressure is 100 psi, 1500 gpm (max). The pipe will be installed in the snow country. I need to design thrust block for the pipe...
  9. m1208

    2001 California Building Code

    I am looking for pdf copy of old "2001 California Building Code". Any idea where I can find it? Thanks
  10. m1208

    Galvanized steel water pipe

    I am using a 14" diameter galvanized steel pipe for potable water design. The pipe is exposed and hanging from the concrete bridge overhang. The pipe line is approximately 600 linear foot and water pressure inside of the pipe is 250 psi. The job requires that the pipe to be made in USA. I do...
  11. m1208

    Wind load on pipe hanging from bridge

    I am looking for wind load acting perpendicular to water pipe line hanging from the bridge overhang. ASCE 7-10, is not clear about the equation and the coefficients to be used for the elements of the structure (pipe line). Any idea what equation to be used from ASCE 7-10? I was not able to...
  12. m1208

    Hanger design for Water line hanging from the bridge soffit

    Hi: Thanks Bridgebuster for the drawing. Yes I am proposing to hang the pipe from rods embedded in the deck. Thanks everybody for the help.
  13. m1208

    Hanger design for Water line hanging from the bridge soffit

    I am looking for design example/criterial for design of large diameter steel water pipe hanging from the bride soffit, for vertical and lateral loads.
  14. m1208

    Cemented soil allowable bearing pressure

    Hi: I am working on an old project and they have classified the soil as "Cemented Soil" under the foundation of the building. Table No. 29-B of the Uniform Building Code does not list the "Cemented Soil" in the table. I was wondering what soil class I can use for the allowable foundation...
  15. m1208

    Slab design for large water tank

    For this size of slab, is the subgrade reaction modulus so critical? Generally settlement under a slab of this size is uniform, no matter the degree of settlement.
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