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  • Users: RMPE
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  1. RMPE

    San Antonio slab

    what is typical design for expansive clays in light loaded commercial facility...I assume integral gradebeams and slab. Any suggestion for design guide...PT not in the budget or design scope, only rebar. Building is about 100' square with a couple column loads and ligh bearing wall line load...
  2. RMPE

    Open Caisson design

    anyone know of any structural design guidelines on open caisson design for 100' deep water well?
  3. RMPE

    Open Caisson design

    anyone know of any design guidelines on open caisson design for 100' deep water well?
  4. RMPE

    Land area calculation spreadsheet

    Is there such a spreadsheet? Don't need a CAD program or survey program. More like a math program. We did area calcs by hand in school....somehow by putting in angles and distances.
  5. RMPE

    Need spreadsheet for land area calculation.

    Is there such a spreadsheet? Don't need a CAD program or survey program. More like a math program. We did area calcs by hand in school....somehow by putting in angles and distances.
  6. RMPE

    Minimum Reinforcing of Pedastal

    This is a waste of time to me but I have to resolve this question forced upon me by a Contractor's interpretation of ACI 318. This concerns 46 inch square "pedastals" for a six legged water tank structure. My interpretation: Use ACI 318 -10.8.4 and 10.9.1 for compression members and...
  7. RMPE

    fall protection

    need a guide performance spec for fall arrest system for use in aircraft hangars. Replacing old iinsufficient 1/4" cable and brackets. Any suggestions where to look/go helpful vendors??
  8. RMPE

    Asphalt Pavement Design for Truck parking area

    Is there a guide or info available for truck parking areas? Is there info avaialble about delayed use of parking area until pavement "sets"?? Anything I can do/use in the pavement design to keep trailer jacks from sinking (other than using concrete or steel plates)???
  9. RMPE

    Fastener strength

    What is the strength for a hex bolt fastener with markings A,F,X and O in the center. It is in an aircraft hangar so it may be an aircraft bolt.
  10. RMPE

    Stainless NDT spec

    Is there an ASTM or AWS spec for proper dye testing of 12 ga stainless sheet fusion welds? We're field assembling a continuous water tight gutter trough for a swimming pool. I don't have any AWS codes other than 1.1. I believe 1.6 is for stainless. Thanks.
  11. RMPE

    Tensile capacity/minimum engagement

    Need to find the tensile capacity of a bolt in a tapped hole condition. Lifting a tank that has 6-3/8" tapped holes about 3/8" deep. Tank flange is Cu-Ni and weighs about 5,000 lbs. Considering FS of 2 on lift and additional 20% for prying action on bolt heads. Therefore I need a...
  12. RMPE

    Airport Wind Loads

    Is there any special wind load provisions necessary at airport facility structures due to jetwash or rotor wash from helicopters? I haven't seen or found anything. Any military specs maybe??
  13. RMPE

    environmental precast structures

    We've been seeing more precast box structures for small wastewater plant applications. Most are two or three piece stacked similar to manholes. Concern is very thin walls for buried application (2 3/4" is the smallest!) and wire mesh reinforcing. Design is by yield line analysis for two...
  14. RMPE

    Incredible Machines Contraptions

    A great fun physics program for for the kids..any age.
  15. RMPE

    Aggressive water on concrete

    Looking at a 10 year old clearwell that has been exposed to an aggressive water with a Langlier Index of -1.3, Alk of 76 (mg/l as CaCO3), Hardness of 160(mg/l as CaCO3), and CO2 of about 50 mg/l. After 10 years the cement paste has been "dissolved" to about 1/4" in depth and only...
  16. RMPE

    Aggressive water on concrete

    Looking at a 10 year old clearwell that has been exposed to an aggressive water with a Langlier Index of -1.3, Alk of 76 (mg/l as CaCO3), Hardness of 160(mg/l as CaCO3), and CO2 of about 50 mg/l. After 10 years the cement paste has been "dissolved" to about 1/4" in depth and only...
  17. RMPE

    Post load on SOG

    Need design procedure for a post load on an existing SOG with WWF. Load is in 20k range and slab thickness is in 9"-10" range.

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