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

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(Need)
Current revision (22:09, 12 April 2011) (edit) (undo)
(Need)
 
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I-beam rigging clamps
I-beam rigging clamps
* for training at Fire Hall
* for training at Fire Hall
 +
*: [[Image:Members:Wuth-imgp1023.jpg|300px]]
** sloped I-beams, flange 4 inches wide
** sloped I-beams, flange 4 inches wide
*** '''need to determine flange thickness'''
*** '''need to determine flange thickness'''
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== Requirements ==
== Requirements ==
* adjustable from 4 to 8 inches
* adjustable from 4 to 8 inches
-
* placeable on sloping I-beam
+
* placeable on sloping I-beam up to 12 degree slope
** non-rolling
** non-rolling
* MBS: 40 kN
* MBS: 40 kN
** 2 person load, SSSF, pulley at top
** 2 person load, SSSF, pulley at top
** = 8993 lbf
** = 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.
+
** 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 MBS is only negligibly greater than the WLL.
== Product options ==
== Product options ==

Current revision

Contents

[edit] Need

I-beam rigging clamps

  • for training at Fire Hall
    • sloped I-beams, flange 4 inches wide
      • need to determine flange thickness
      • exterior roof has 12 degrees slope; interior ceiling has 2 angles: the edges are greater, the center less (where we will be working)
    • horizontal I-beams, flange approx 7-8 inches wide
      • need to determine flange thickness
      • more accurately measure flange width

[edit] Requirements

  • adjustable from 4 to 8 inches
  • placeable on sloping I-beam up to 12 degree slope
    • 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 MBS is only negligibly greater than the WLL.

[edit] Product options

[edit] Potentially suitable



[edit] suitability uncertain

Welded ring


[edit] Not suitable