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  1. someengineer

    Structural Engineering in Europe

    Thanks for the input, any advice is appreciated!
  2. someengineer

    Structural Engineering in Europe

    Hello all, We are in the beginning stages of doing a project in Germany (structural steel and concrete) and this will be my first foray into using the structural Eurocodes and Annexes. I am very familiar with North American codes, but not well versed in the Eurocodes. Does anyone have any...
  3. someengineer

    New Pump on Suspended Slab

    I will investigate the use of a vertical pump. The pump has not been purchased yet, we are still in the feasibility stage. Thank you for all your help!
  4. someengineer

    New Pump on Suspended Slab

    Please see the attached proposed pump location(s) as requested.http://files.engineering.com/getfile.aspx?folder=5a460682-1b14-47d7-b43d-f5daeb175fa5&file=Untitled.pdf
  5. someengineer

    New Pump on Suspended Slab

    I wanted to provide a few more details to see if this sheds a bit more light - We are looking at a couple different locations for the pump, one where the pump would be centered on a large 14" x 34" concrete girder (running parallel to the girder span) and the other where the pump runs over top...
  6. someengineer

    New Pump on Suspended Slab

    Hello! I have been tasked with investigating the feasibility of installing a new pump (and concrete pump base) on a suspended slab operating floor. The pump is 600HP and the suspended slab is only 6" thick supported by concrete beams. I was hoping someone may be able to shed some light on any...
  7. someengineer

    Increasing Shear and Tension Capacity in Pier

    Some great discussion on this! Thank for all your help. To respond to some of the inquiries - the pier is about 1'-4" up from the slab on grade so if we went with rods tied into the side of the pier, they would likely need to pass through the fill. This is a process area, so there may be some...
  8. someengineer

    Increasing Shear and Tension Capacity in Pier

    KootK, There are braces (both planes) that deliver the shear and uplift to the piers. MacGruber22, Thanks for the advice, I will be sure to get in touch with a specialist if we go that route. It definitely does sound like a lot of work, our client is concerned with schedule more so than...
  9. someengineer

    Increasing Shear and Tension Capacity in Pier

    Thanks for all your input. We have contacted an FRP specialist and have been told that is has been done before. We are still looking at other options however. The challenge I see with encasing the existing concrete, is predicting how the shear and tension failure cones will behave between...
  10. someengineer

    Increasing Shear and Tension Capacity in Pier

    Thanks KootK, The piers themselves fail in breakout under both tension and shear (based on anchor rod edge distance). I'm a bit unclear about what you are suggesting, could you please elaborate. I have provided a quick sketch for information (NTS). We want to do the reinforcement without...
  11. someengineer

    Increasing Shear and Tension Capacity in Pier

    Hello, Does anyone have any insight into practical methods to increase pier anchorage capacity? We have a situation where there is an existing frame that supported a vessel that was laterally supported at the top. Now our client wants to replace the vessel with another one (using the same...
  12. someengineer

    Mass Concrete Reinforcement Distribution

    Hello! I was hoping someone may be able to provide some insight or resources for the following: Looking to design a large tank mass foundation that is founded on bedrock. The foundation is approximately 50'x50'x23' deep (square), with soil restraining the foundation on all sides up to grade...
  13. someengineer

    Founding on an Existing Footing

    Sorry for not saying what the footing is supporting. Its supporting a column for a small pre-engineered building. The column is fairly lighty loaded - mostly wind load. The client has elected to demo the existing footing and install a new one as originally planned. Thanks for your assistance!
  14. someengineer

    Founding on an Existing Footing

    Unfortunately there is not much information available in regards to concrete strength or reinforcement. It appears to be part of a strip footing. If we were to use it the new pier would intersect at the edge of the strip, therefore we would likely need to pour a new portion of the footing that...
  15. someengineer

    Founding on an Existing Footing

    We are still waiting on geometric information from the client, i think it is only partially exposed at the moment.
  16. someengineer

    Founding on an Existing Footing

    Hello, Not sure if there is a better section to pose this question but I thought I would start here. I am running into a situation where we have done a foundation design (piers and footings) at a mill site and issued for construction. The owner is overseeing the excavation and the contractor...
  17. someengineer

    Effective Bearing Area

    As an addendum to this - I know there has been much discussion regarding factors to be used to foundation calculations and I hope I don't open a can of worms, but would it be correct to assume to use unfactored loads to determine the eccentricity?
  18. someengineer

    Effective Bearing Area

    Hello, I am designing some shallow footings that rest on granular fill with vertical load and moment applied to them. Someone proposed to me that there is a limit to determining the effective area of the footing based on a maximum eccentricity of less than B/6 (or L/6). My understanding is...
  19. someengineer

    Pile Cap Design

    Thanks for all your help. The assumption that this is an industrial project is correct and the tank is actually wide and squat. Based on the comments, it seems prudent to use the piles to absorb all or most of the lateral loads. The lateral loads are a result of both wind and seismic, with...
  20. someengineer

    Pile Cap Design

    Hello, I am looking into the design of a pile cap and was wondering if I could get some insight into a couple questions I have. The foundation is being used to support a large tank above grade. The foundation was first analyzed as a mat bearing on structural fill with dimensions 18m x 18m x...

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