Rope Rescue/Equipment/Need/I-beam rigging clamps

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(Potentially suitable)
(Potentially suitable)
Line 25: Line 25:
** GCI Swivel-Jaw Adjustable Girder Clamp
** GCI Swivel-Jaw Adjustable Girder Clamp
*** For use at up to 15° from horizontal
*** For use at up to 15° from horizontal
 +
**** ''website says: from vertical''
*** Approved for Personnel tie-off use*
*** Approved for Personnel tie-off use*
*** [http://www.superclamp.com/images/ProductsImages_Swivel.jpg picture]
*** [http://www.superclamp.com/images/ProductsImages_Swivel.jpg picture]
Line 34: Line 35:
***** WLL: 22,400 lb
***** WLL: 22,400 lb
** GCI Fixed-Jaw Adjustable Girder Clamp
** GCI Fixed-Jaw Adjustable Girder Clamp
-
*** For use at up to 15° from horizonal
+
*** For use at up to 15° from horizontal
 +
**** ''website says: from vertical''
*** Approved for Personnel tie-off use*
*** Approved for Personnel tie-off use*
*** [http://www.superclamp.com/images/ProductsImages_Fixed.gif picture]
*** [http://www.superclamp.com/images/ProductsImages_Fixed.gif picture]

Revision as of 17:08, 19 March 2011

Contents

Need

I-beam rigging clamps

  • for training at Fire Hall
    • sloped I-beams, flange 4 inches wide
      • need to determine flange thickness
      • determine slope angle
    • horizontal I-beams, flange approx 7-8 inches wide
      • need to determine flange thickness
      • more accurately measure flange width

Requirements

  • adjustable from 4 to 8 inches
  • placeable on sloping I-beam
    • non-rolling
  • MBS: 40 kN
    • 2 person load, SSSF, pulley at top
    • = 8993 lbf
    • WLL is not the same as MBS. It has a Design Factor (DF) built in for safety. That factor is not documented; OSHA talks about factor 2 in other parts of its standard. But without specification, we assume that the WLL is only negligibly less than MBS.

Product options

Potentially suitable



suitability uncertain

Welded ring


Not suitable