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  • Users: ERV
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  1. ERV

    Strucalc 6.0

    For simple analysis of axially loaded elements, given the cost, you can't beat this program. Fast and easy to use, good reports.
  2. ERV

    WIND LOAD ON PARAPET

    On parapets you would use compnents and cladding for determining wind loads. The MWFRS is the building itself, the loads from the parapet are transferred to it.
  3. ERV

    Autocad 2004/Land Desk/Civil Design

    jakesbraves, I had the same problem. These programs use a lot of video memory. You will probably have to upgrade your video card to 128 or even 256 MB.
  4. ERV

    Cast Iron Column - Fire Rating

    An interesting article in December-January edition of Structure Magazine on fire protection: http://www.structuremag.org/archives/2003/december_january/fireprotection.pdf
  5. ERV

    Welded connections for aluminum

    What you may be looking for is "Structural Welding Code-Aluminum" , AWS, D1.2-97: http://www.aws.org/catalogs/index.html Try this link for any welding code or standard.
  6. ERV

    seismic Design and UBC97

    This is about as close as I can come to what you are looking for: http://www.smacna.org/documents/technical/seis_add1.pdf Hope this helps. If you need more info try a Google search "97 UBC, section 1632", this is the section of the UBC that pertains to equipment mounting and...
  7. ERV

    Aluminum conduit in slabs?

    Tim76, The code prohibits the use of aluminum in structural concrete unless it is effetively coated or covered. Aluminum reacts with concrete and, in the presence of chloride ions, may also react electrolytically with steel, causing cracking and/or spalling of the concrete. Aluminum electrical...
  8. ERV

    finishing attic - need to span 30'

    I suggest that you take a drawing of what you intend to do to a local truss manufaturer and have them work out the engineering details for floor trusses. This seems pretty simple and straight forward. If you are not shure of the bearing capacity of the walls, be sure to have someone experienced...
  9. ERV

    HOW TO: tie a steel frame system to an unreinforced masonry wall

    FreeRangeMonkey, Is it possible to set and epoxy a channel on top of the masonry wall and connect to the steel frame? This should help reduce failure at the connection.
  10. ERV

    engineering survey for condo conversion

    For fireproofing and fire protection see the National Fire Protection Association (NFPA), this would fall under NFPA 101: www.npfa.org
  11. ERV

    Entire/Portion of critical section is beyond the footing

    I should also mention that with the increase in depth of the footing, you can use an allowable soil bearing pressure increase. In this case, the bearing area of the footing can be decreased from 20.25 ft2 (4.5 ft X 4.5 ft) to 14.00 ft2 (3.75 ft x 3.75 ft), effectively reducing the critical...
  12. ERV

    Wind Response Sectrum

    jheidt2543, Here are a couple of links that may be of interest: http://www.nd.edu/~nathaz/database/main.html http://www.nd.edu/~nathaz/research/zhou/ind988.pdf
  13. ERV

    Entire/Portion of critical section is beyond the footing

    For an increase from 12" to 36", to get viable results from you software increase min. steel to 3.70 in2. Punching shear will increase 9 times, beam shear is 0, allowable beam shear is 161,213 lb, all else being the same. Try a mat of #5 bars 4.25" o.c., 12 min. Design should...
  14. ERV

    Wind Response Sectrum

    In seismic analysis, response spectrum is the curve showing a relationship between the maximum response and the frequency or period of a structure. The responses can be displaced, velocity, and acceleration, in which case the corresponding response spectra are called displacement spectrum...
  15. ERV

    Allowable tensile load in wood strut

    The NDS has tables for just about anything to do with structural wood design. It is referrenced in all building codes in the United States, so it is accepted by practically all building jurisdictions. The link that you have provided has good info, however, I don't know that if referrenced, it...
  16. ERV

    Attaching new basement to existing slab stem wall?

    Core through the existing floor slab approximately 8' in from end walls (1/3 points), if the soil is reasonably dry it should not present much of an issue. If the soil contains excess moisture, additional investigation should be done prior to excavation.
  17. ERV

    I need design specs.

    ASD, with the National Design Specification has just about everything you need for wood. http://www.iccsafe.org/e/prodshow.html?prodid=350P01&stateInfo=qlaccjklaJFimUgl4493|14
  18. ERV

    Allowable tensile load in wood strut

    National Design Specification, or NDS.
  19. ERV

    Mean Roof Height

    The MWFRS is from the eave height down. If the roof is flat or nearly so treat it as a flat roof. By all means use figure 6-4 for your calcs (of course the forces are less in 6-4, this is for buildings <60 ft). The projection above the roof (10 - 14 FT) should be treated as a parapet (or...
  20. ERV

    steel/aluminum connection

    broekie, The concern may be oxidation, if so, use a stainless steel isolation plate between the two materials.

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