Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. Imagineer

    Geofoam under parking lot

    Project: Snow Melting under parking lot and alleyway. The kicker is that occasionally a 15-ton crane to remove rooftop equipment, etc. sets up in the alleyway. The manufacturers of the hydronic snow melt system require insulation under their tubing because the water table is within 8 feet...
  2. Imagineer

    Nuclear fission/fusion

    Not to be flippant but the short answer to your question is "Yes, it's called a hydrogen bomb." As exnavynuke pointed out, if one is trying to use the energy of the fission to induce fission, the heat, etc are to great to be uncontained. (Notice, I did not say "uncontrolled". That is a very...
  3. Imagineer

    frost heave

    While it is absolutely true that "if the footing is made heavy enough and reinforcement is put in the top it could resist any frost heave.." In practically it is not. Very few buildings are heavy enough and strong enough to resist frost heave. (This means NO houses and few building short of...
  4. Imagineer

    Knee Braces in RAM Structural System (Steel)

    How do I model knee braces in the RAM Structural System? The program has inputs for horizontal braces and other inputs for vertical braces to take lateral loads but I can't find anything on how to put in a knee. Anyone done this in RAM? TIA, Imagineer
  5. Imagineer

    Who 'Invented' Metric

    Now to really stir the pot... At the risk of being called a heretic, why the big push for the metric system or SI or whatever the "official" name is? (Yes, I know there are technical differences but on normal human scale these are insignificant.) I'm not trying to be a pain, but being a US...
  6. Imagineer

    Quick Natural Frequency Estimates

    While doing a google search for some frequency information, I was sent to this thread. Should have known to check the Tips first. :) A quick estimation of building natural frequency is 0.1sec per story. Note that this is not the resonance of the building just it's natural frequency to...
  7. Imagineer

    i need GTSTRUDL User Reference Manual in pdf format if available.

    It comes with the software. Check in the ..\GTSTRUDL\version\DOCUMENTATION\PDF folder, where version is the version number installed. Imagineer
  8. Imagineer

    staad geometry

    STAAD 21???? I'm unfamiliar with that version... With STAAD 2000 and greater goto the FILE menu, select IMPORT, then DXF... Imagineer
  9. Imagineer

    Basic steel calc question

    Then, of course, there is the AISC Manual of Steel Construction... Imagineer
  10. Imagineer

    Cracks in concrete slab

    Jane, Is this a consultant engineer or the local city/county engineer? Imagineer
  11. Imagineer

    Help with IF statements

    Possible correction to Fawkes post. You need a &quot;]&quot; square bracket after scf:=. The keystrokes then become scf:]answer}condition. What do you mean by &quot;pr?0.7&quot;. Is the &quot;?&quot; supposed to be <,=, or >? More help to follow when I know what this means... Imagineer
  12. Imagineer

    Reusing conditional statements?

    Greg, Huh? There is only one diameter for a given bar_size. Did I misunderstand your post? [3eyes] Imagineer
  13. Imagineer

    Determining Required Weld Strength

    The &quot;Manual of Steel Construction, LRFD 2nd Ed.; Vol. II:Connections&quot; has some pretty good examples of just this sort of thing. I'm not sure if the same examples are in the new 3rd Ed. but you get a year's free AISC membership if you purchase it before April. [thumbsup2] Imagineer
  14. Imagineer

    Beam To Girder Analysis

    You could design the beam and the column for their respective worst-case scenarios. Design the beam as simply-support and the column as moment-connected. It's conservative but in reality there will be some fixity which is very hard to quantify. Imagineer
  15. Imagineer

    Dowel Bars In Shear

    I would say that it is the minimum strength of all of those. If the dowels are shallow, i. e. less than 8 inches, you might also have a pull-out problem. Imagineer
  16. Imagineer

    Grain Silo Structural Analysis

    RMPE, Could you post those references. I have been looking for silo design books. Imagineer
  17. Imagineer

    Nuclear Propulsion for Merchant ships: Is there a future?

    As to the &quot;raison d'etat&quot;... It's been done. The US did the N.S. Savannah which you can visit at Charleston, SC. The Soviet Union built several, mostly for raison d'état because the USSR wasn't profit driven. Don't have the latest Jane's to see if the cargo ships are still being...
  18. Imagineer

    Check out -Engineering spreadsh

    Check out -Engineering spreadsheets Forum (1554 members) forum770 and -General engineering computer programs discussion Forum (1105 members) forum724 In the Engineering Computer Programs area. Imagineer
  19. Imagineer

    Reusing conditional statements?

    I use a matrix method as follows: bar_dia := {0.00 0.00 0.375 0.500 0.625 0.750 0.875 1.00 etc.} a.s := {0.00 0.00 0.11 0.20 0.31 0.44 0.60 0.79, etc.} Note the first to 0's.. this means that the position is the rebar size. so a.s[7 gives me the area of steel for a #7 bar and bar_dia[7...
  20. Imagineer

    sea water retaining structures

    Find a marine engineer.... Seriously, there are many other factors such as wave action, wind action, and tidal forces that will actually govern your design. Wind and Wave will literally rip your structure apart if you do not design for them properly. Imagineer

Part and Inventory Search

Back
Top