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  • Users: BENDOG
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  1. BENDOG

    Design of saddles for round ductwork

    Does anyone have a good reference for the design of fixed and sliding saddles for circular ductwork?
  2. BENDOG

    Design of lifting lugs

    I'm curious as to how others design lifting lugs. I am using AISC D.5 and J.7. The lug I am designing appears to be governed by bearing strength using AISC Eq J7-1 Rn = 1.8FyApb. But I also found reference to ASME-BTH-1-2008 Eq 3-54 where the bearing capacity is P=0.63Fy(Dpin)t which is a big...
  3. BENDOG

    Deep frost depth

    We are designing an industrial facility in Canada with a 7 foot frost depth. The facility has a lot of interior equipment foundations. If the facility is heated do these foundations also have to go to the frost depth?
  4. BENDOG

    Design for fall protection

    I am designing a fall protection system for an existing (1960's) truck loading station at a chemical plant (see attached sketch). A person will be walking ontop of a tanker truck attached to an overhead monorail system. I am designing this for the OSHA 5000# requirement as a static force...
  5. BENDOG

    2004 ASME II Part D

    I am missing pages 65.2 & 65.3 from 2004 ASME II Part D. I am looking for S at elevated temp for SA-240 316L. I would really appreciate it if someone could either provide the values or provide the missing pages. Thanks
  6. BENDOG

    Yield Strength at Elevated Temperatures

    ASME II Part D (we have 2004) has tables for tensile strength and modulus of elasticity for various alloys at elevated temperatures. I'm looking for tables for yield strengths. Is that covered anywhere in ASME? If not where can I find it?
  7. BENDOG

    Pile cap reinforcing steel

    I am reviewing designs of a piled foundation for a large absorber vessel at a power plant. The pile cap is an 80 ft diameter octagon foundation, and the reinforcing steel is spaced radially about the center. The bars are terminated about 16 ft from the center to avoid congestion. At the center...
  8. BENDOG

    Seismic forces for non-building structures

    I am designing a piled foundation for a large industrial fan weighing 155 kips. I am using ASCE 7-02, SDC-A. I am confused as to what section I should be using to calculate the seismic lateral forces on the fan and pile cap. According to 9.14.4 I should use 9.6.1.3 if the fan is less than 25%...
  9. BENDOG

    Octagon Chimney Foundation

    I am designing an octagon foundation for a 550 ft chimney. One of the design references that I have states that reinforcing steel should be placed in two perpendicular directions, lets say N-S and E-W. The reference does not address the reinforcing when the wind is blowing from SW to NE. For...
  10. BENDOG

    Design of girts

    I am aware of the fact that the increase of allowable stresses for wind is no longer allowed. But when designing girts the only loads are the dead load of the siding, the dead load of the girt, and wind. Thus your load combination is Dead + Wind. But it appears to me that you should be allowed...

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