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

From PCSAR

(Difference between revisions)
Jump to: navigation, search
(Not suitable)
(Not suitable)
Line 79: Line 79:
=== Not suitable ===
=== Not suitable ===
-
* rigging chains (require horizontal beam)
+
* rigging chains
 +
** ''require horizontal beam''
** http://www.polarfocus.com/view.php?RCS
** http://www.polarfocus.com/view.php?RCS
-
 
-
 
-
* http://www.polarfocus.com/view.php?RBC
 
-
** "level beams only"
 
Line 91: Line 88:
** http://www.allmaterialhandling.com/aspnet/beamclamps.aspx
** http://www.allmaterialhandling.com/aspnet/beamclamps.aspx
** http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps
** http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps
-
** not rated for live load see [http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps pictures]
+
** ''not rated for live load''
 +
*** see [http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps pictures]
** http://www.stageriggingonline.com/beamclamps.html
** http://www.stageriggingonline.com/beamclamps.html
 +
** http://www.polarfocus.com/view.php?RBC
 +
*** ''level beams only''

Revision as of 17:16, 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