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  1. jhnblgr

    Wood Bridge Inspection

    If the houses are insured and the fire department not located on the island, likely the insurance coverage will be dropped if the bridge is found unsafe or inadequate.
  2. jhnblgr

    PEMB Zee and Cee Purlins

  3. jhnblgr

    Vertical Component of Live Load Surcharge

    It is resolving the point load into a psf load which you can use in the unit width design of your wall. Typically codes provide design live load surcharge.
  4. jhnblgr

    Head Joint Design for UL 142 Tanks

    Stress concentrations
  5. jhnblgr

    PEMB Zee and Cee Purlins

    Wouldn’t the pre insulated panel act as a diaphragm
  6. jhnblgr

    Vertical Component of Live Load Surcharge

    it’s the distributed wheel load. https://connect.ncdot.gov/resources/Geological/Documents/6B-1_Modeling%20Traffic%20and%20Construction%20Equipment%20Surcharges_Lien.pdf
  7. jhnblgr

    Wood Bridge Inspection

    https://highways.dot.gov/fed-aid-essentials/videos/other-programs/infrastructure-national-bridge-inspection-standards There are federal standards on bridge inspections and qualifications. The bridge merits a in-depth inspection and level 1 load rating. Underwater inspection is likely also...
  8. jhnblgr

    Shed Dormer on House w/ Exist Gable Dormer

    I guess in theory you could design a steel truss with bolted connections. Anything is possible at a cost
  9. jhnblgr

    Steel Deck Cantilever

  10. jhnblgr

    Lift Station Troubleshooting

    Yeah too many unknowns. I doubt there’s anything wrong with the design, I’m just trying to come up with possible issues. If you oversize a vfd you can convert single phase to 3 phase to get a better pump. Could be as simple as a bad relay.
  11. jhnblgr

    Cantilever Plate bending with UDL

    Post a sketch
  12. jhnblgr

    Lift Station Troubleshooting

    Well pump station size doesn’t seem to be likely the issue if the alarms going off at night when there is no flow since the business is closed. What was the alarm cleared? Have the owner get a different plumber or you walk away and have a vac truck clean the pump station. Possibly steps...
  13. jhnblgr

    Steel Deck Cantilever

    They state in the older manuals that the negative moment steel needs to be designed per ACI for cantilever. https://vulcraft.com/catalogs/Deck/VulcraftDeckCatalog2008.pdf
  14. jhnblgr

    Slab on grade on High Density Foam

    I would think the lesser of the to 40x0.33x144= 1920 psf or soil bearing capacity. Is the slab flat or haunched? What’s the thickness of the slab?
  15. jhnblgr

    Slab on grade on High Density Foam

    https://www.dupont.com/content/dam/dupont/amer/us/en/performance-building-solutions/public/documents/en/styrofoam-brand-highload-40-60-and-100-pis-43-d100994-enNA.pdf At the bottom it says for static loads 3:1 Nys dot says 1% but I think that’s a but extreme you’re better off cutting it out...
  16. jhnblgr

    no expansion joint at exterior foundation step

    Corners in general cause cracks. But I’d guess this was caused by settlement or heave
  17. jhnblgr

    Shed Dormer on House w/ Exist Gable Dormer

    https://www.industrialproducts.com/genie-superlift-contractor-lifts1.html?gad_source=1&gad_campaignid=21010263788&gbraid=0AAAAAD_WmHGqXy2154R0IwUzVqwicikmj&gclid=EAIaIQobChMI-buzp-2gjgMV8p5aBR0VlTtCEAQYBiABEgJor_D_BwE#515=33592&1193=16300
  18. jhnblgr

    Shed Dormer on House w/ Exist Gable Dormer

    What depth of LVL can you get to work and why isn’t it feasible? Seems like you have the head room if you plan on having that ceiling joist. Could also look into glulam beams. How did you figure the loads for the beam, any possibility you didn’t accidentally double count a load? What if you...
  19. jhnblgr

    Beam Reinforcement Calculation

    Wouldn’t the shear stress be concentrated and uneven with the proposed concept. Also isn’t welding that near to the flange web interface weaker the beam. AISC recommended strengthening methods
  20. jhnblgr

    Shed Dormer on House w/ Exist Gable Dormer

    What’s the plan view look like?

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