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  1. Kevin Lu

    Water Tank Foundation Design Help

    Thank you Fel3, I'll start looking on the PIP STE 030202 guidelines, AWWA D-100-21, and AWWA D-103-19. I have ASCE 7 and ACI 318-19(22) in my hand. Which specification section would you recommend me to look? Thanks again for your tips.
  2. Kevin Lu

    Water Tank Foundation Design Help

    Thanks for your reply, I do have the geotech report in my hand, As written in the report, the caisson has a recommend depth of 12 ft under ground level and allowable bearing of 4500 psf (for live and dead load). There is a recommendation of 3 ft soil backfill. Since the surface soil is not...
  3. Kevin Lu

    Water Tank Foundation Design Help

    Thanks for your reply, Mr. JedClampett. I just talked with my boss about the workload and my struggle. (The comany is actually a small firm, I'm the first structural aspect student intern to them) He said that I missunderstanded what he said. He want me to calculate the estimated load quantity...
  4. Kevin Lu

    Water Tank Foundation Design Help

    Dear Professional Engineers, I'm a student intern at a medium sized design and build firm. My boss gives me another task on Outdoor Fire water tank foundation calculation. My boss already hired a structure engineer to design the tank foundation, but seems like my boss doesn't like that...
  5. Kevin Lu

    [Belled Cassion] What is the proper way to calculate Ultimate load of a belled cassion?

    At school, I've been taught using a standard series of load calculation based on ACI 318-19 code. Start with footing area calculation, with DL LL, service load, soil bearing, all densities, comprehensive strength, and all coefficients. Then I will get a footing sample dimension from there...
  6. Kevin Lu

    [Belled Cassion] What is the proper way to calculate Ultimate load of a belled cassion?

    Thanks Dik and BART, The building is a bottom up building located in suburban area of Beaumont, TX. The soil report provide a undereamed pier depth of minimum 12 fts under existing grade, with a Allowable Net Bearing of 3000 psf (DL + Sustained LL) and 4500 psf (total DL+LL). I have all of...
  7. Kevin Lu

    [Belled Cassion] What is the proper way to calculate Ultimate load of a belled cassion?

    Here's the image that I screenshoted from the building drawing. I think it's the structural slab. The geotech report recommend the foundation (caisson)'s column to bell diam ratio to be 3:1. "The recommended bell to shaft ratio is 3:1  In case of borehole sloughing, bell to shaft ratio...
  8. Kevin Lu

    [Belled Cassion] What is the proper way to calculate Ultimate load of a belled cassion?

    Thanks for your reply, the warehouse has unevenly distributed live load, since it's designed for storaging different types of chemical in totes. (IBC regular tote: 48" L x 40" W x 46" H) is there a way to avoid calculation of point axial load? The point load of (based on the current chemical...
  9. Kevin Lu

    [Belled Cassion] What is the proper way to calculate Ultimate load of a belled cassion?

    Dear Engineer friends, I'm having an intern at my current company. My boss gave a task on checking if the belled caisson foundation system can or can not support the warehouse upon it. The belle caisson has spec of bottom diameter = 48", column diameter = 16", belled section angle = 45...

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