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  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. someengineer

    Tank Lateral Restaints

    Hello, I was wondering if I could an opinion on this subject. We are installing a plastic flat bottom tank in a building in a high seismic zone (BC Canada, west coast) and the question of required anchorage/restraint has come up. The tanks are such that both the overturning (empty and full)...
  9. someengineer

    Water Tanks on Existing Slab

    Hello, I was wondering if anyone could please provide me some advice or suggestions. Our client would like to install 2 flat bottom water tanks (approx. 3m in diameter and 3m high) into an existing building. There is an existing slab on grade within the building (200mm thick) and the client is...
  10. someengineer

    Water Tanks on Existing Slab

    Hello, I was wondering if anyone could please provide me some advice or suggestions. Our client would like to install 2 flat bottom water tanks (approx. 3m in diameter and 3m high) into an existing building. There is an existing slab on grade within the building (200mm thick) and the client...
  11. someengineer

    Equipment Foundation for Rotating Mass

    Hello, I am trying to find information on how to estimate the unbalanced load from a mass imbalance in a piece of rotating equipment that sits on an elevation foundation. Excessive vibrations can be observed in the foundation element and we are investigating the possibility that the vibrations...
  12. someengineer

    Existing Pier Tie In

    Hey, I am wondering if anyone has any insight into a particular problem that I'm working on. We are building a new structure that is connecting into an existing one. The area of intrest currently is the grade beam and column piers. I have a lightly loaded column that is to sit on a new...
  13. someengineer

    Frost Penetration and Movement

    Hello Engineers, Does anyone know at what angle frost will be transmitted through soil as a result of vehicular impact loading? I imagine it would be a function of the soil type. Does anyone have any information regarding this? I need to bury a pipe beside a road, below the frost line and I am...
  14. someengineer

    Glue Strength

    Hello Engineers, Does anyone have any information about bond/shear strength of wood construction glues?
  15. someengineer

    Circular Concrete Beam

    Hello there, Does anyone know a good resource for the design of a round concrete beam? I actaully have a laterally loaded concrete pile and am going to model it as a concrete beam with a point load. The prelim reinforcement is one row of 20M rebar running along the perimeter of the beam in a...
  16. someengineer

    Lake Water Intake Systems

    Hello, I am wondering if anyone has any experience designing lake water intake systems. I have a shallow lake that freezes over the winter that I need to draw 2000m^3/day from. We were thinking a stilling well on the bank of the lake with a pipe running into the lake from below the surface...
  17. someengineer

    Transfer Load

    Hi there, Does anyone know a good criteria to determining what transfer load (lock off) should be applied to soil anchors? I understand its a percentage of the design load. Is it a function of the free stress length of an anchor? If anyone knows any guidelines it would help. Thanks!
  18. someengineer

    Angluar Pile Group Action

    Hello, I am designing a small foundation for a cellular tower using micropiles. Due to limitations in equipment, we need to use 2-150 dia (grout) vertical piles that would be side by side (150mm center to center spacing). Does anyone know a reduction factor for skin friction resistance if we...
  19. someengineer

    Spread Footing Piles

    Hey, Does anyone know where I can find any good online references for the design of spread footing piles (i.e. piles with increased end bearing due to a larger diameter at the base)? It would be most appreciated! Thank ya
  20. someengineer

    Buckling of Tapered Section

    Hey, Does anyone have any good reference about how to calculate the critical buckling load of a tapered section? The section that I am investigating is an underwater spar. Its essentailly a trusss that is diamond shaped (in 3 dimensions) with one central member connecting to 4 adjacent...

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