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  1. CFSEng

    Beam Splice?

    As a quick answer you could take the moment divided by the depth of the stud (12/8=1.5) and design the connection at the flanges for 1.5kips. You could also check M/S to get the stress in the flange and go from there. Keep in mind there is more going on than just the screw connections, you...
  2. CFSEng

    Beam Splice?

    I'm with ron9876 on this one. If you are trying to splice 2 studs together I would recommend capping the back side with a heavier piece of track and screwing the flanges and webs. Is there a reason they are pushing for using a stud on the back? Normally you would only attempt this if the stud...
  3. CFSEng

    ASCE 7-05 pressure coefficients

    The way I understand it is "a" is calculated from the edge of the roof line. Based on this, you can map out your correct zones on the roof and determine the correct GCp to use. You would use the overhang coefficient table only on the overhang part. Therefore it is possible for a zone to use...
  4. CFSEng

    Energy Calculation For Residential Addition

    For a 532 sq ft addition it's probably not worth the trouble to hire an HVAC person. I did this for my addition to my house and spent around 30 minutes. Of course my calcs were for my own house, you would have an increased liability providing the calc for someone else. Just make sure your...
  5. CFSEng

    Being responsible for job estimate

    This deal is what you call a win-lose. The boss always wins and the employee loses. We all know this is not the best type of agreement. To make it a win-win, if the project comes in under budget, the engineer needs to be paid for those hours not worked as a bonus. So a project with 100 hours...
  6. CFSEng

    Being responsible for job estimate

    Shacked, It sounds like it's time to find a new place to work. Not to sure about S. Cali but I know here in FL finding a job is rough right now. If you are classified as non-exempt which it sounds like you are since he pays you hourly, the federal labor laws (and maybe your state) require you...
  7. CFSEng

    co-worker non claiming all hours worked

    Ron... I guess there are many unknowns to this discussion... I don't know where you are located or even what you do as engineer and in the end it's really irrelevant. I agree with you a hunderd and ten percent about the raise your rate comment, at our peak we were charging $180 for principals...
  8. CFSEng

    damping ratio (beta) for use in calculating gust effect factor (G)

    Oops... my mistake. The wind guide I have is for 7-02 but the commentary I was reading is 7-05. These minor details always getting in the way. You know 7-02... 7-05... whatever it takes
  9. CFSEng

    Fastening of Z Purlins

    To determine capacity you would need to refer to the AISI code. Lots of equations for calculating capacities based on unbraced lengths
  10. CFSEng

    co-worker non claiming all hours worked

    Ron, Please don't compare engineers to lawyers, while both may be classed as professional, how many engineers do you know that can bill $200+ an hour for their time. Also note the hard working lawyer bills 60 hours per week (key word bills) so that the firm collects for 60 hours of time. An...
  11. CFSEng

    Fastening of Z Purlins

    It would still have capacity just less than when braced. This comment is based on the top flange in compression
  12. CFSEng

    damping ratio (beta) for use in calculating gust effect factor (G)

    Look in the commentary in the back of ASCE 7-02. Under the section C6.5.8 there is a section titled Structural Damping. This gives you some ideas of possible betas to use as well as references. Looks like ratios of 1% and 2% are typical for the US for buildings. Interesting to note is this...
  13. CFSEng

    ASCE 7-05 Sec 6.2 Wind Loads :Enclosure classification

    call it ambiguous or incomplete if you want but it is clearly defined. Your openings determine your building classification. Your classification determines the GCpi you use.
  14. CFSEng

    question about wind load analysis of a open top screened structure

    I would be cautious of using the other-structure (free standing walls and signs) as that neglects any possibilities of wind pressure increase due to corner (edge) zones.
  15. CFSEng

    ASCE 7-05 Sec 6.2 Wind Loads :Enclosure classification

    The way I understand it, enclosure clasification only controls the GCpi. Enclosed is +/-0.18, Partially is +/-0.55 and Open is 0. If you have 70% openings on all sides (non-compliance with partially enclosed), that just means the CGpi coefficient is +/-0.18 to be used when determing wall...
  16. CFSEng

    Unbraced metal studs in compression

    a 350S162-43 x 10' long unbraced should get you around 790#. Of course this assumes zero eccentricity on the load. If you can't mechanically brace the member I would use back to back studs ][ to make an I or cap the stud with a track to make a 'tube' to help with stability. Good luck with a...
  17. CFSEng

    Steel Stud Box Header

    Typically the answer is yes, but if you have large windows with small cripple studs (unbalanced lateral loads) and Deep Cees used to make the box, it could be an interesting discussion of load flow from the bottom track through the Cees to the top track.
  18. CFSEng

    Hilti anchor

    We often use the Powers Wedge-Bolt. This is basically a large diameter tapcon that comes in 3/4" diameters. We prefer the concrete screws over expansion bolts since they typically have higher connection strengths and work much better in vibration / seismic applications...
  19. CFSEng

    Email Management

    You are all welcome. My next plan is to write all this information into a database, so it can easily be retrieved from our project web pages. Since I already laid out the foundation for the information in creating a .csv file, it should be rather easy to change that to writing to a database...
  20. CFSEng

    Email Management

    Here is the code. Post back if you have any questions... Option Explicit '--------- 'version 6.0.1 '--------- Dim JobNo As String, where As String Dim DTName As String, IndexName As String Dim JobFolder As String, IsFolder As String Dim email As MailItem Dim journal As JournalItem Dim fso As...

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