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

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== Need ==
I-beam rigging clamps
I-beam rigging clamps
* for training at Fire Hall
* for training at Fire Hall
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*** '''need to determine flange thickness'''
*** '''need to determine flange thickness'''
*** '''more accurately measure flange width'''
*** '''more accurately measure flange width'''
-
* requirements:
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== Requirements ==
-
** adjustable from 4 to 8 inches
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* adjustable from 4 to 8 inches
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** placeable on sloping I-beam
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* placeable on sloping I-beam
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*** non-rolling
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** non-rolling
-
** MBS: 40 kN
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* MBS: 40 kN
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*** 2 person load, SSSF, pulley at top
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** 2 person load, SSSF, pulley at top
-
*** = 8993 lbf
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** = 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 WLL is only negligibly less than MBS.
-
possible products:
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== Product options ==
 +
 
 +
=== Potentially suitable ===
* General Clamp Industries
* General Clamp Industries
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* Beam Clamp (unclear manufacturer)
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=== suitability uncertain ===
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** 3 - 9" flange widths
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** WLL, Personal 2,000 lbf.
+
-
** http://www.rescuetech1.com/beamclamp.aspx
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-
 
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-
 
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suitability uncertain:
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Welded ring
Welded ring
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Not suitable:
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=== Not suitable ===
* rigging chains (require horizontal beam)
* rigging chains (require horizontal beam)
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*** http://www.relsafe.com/ProductDetails.aspx?guid=485b7f80-88b9-46a2-8ae9-d8eeb47cf0f5&pid=555&sourceUrl=ProductsByCategory.aspx%3fcategoryId%3d100%26pg%3d0
*** http://www.relsafe.com/ProductDetails.aspx?guid=485b7f80-88b9-46a2-8ae9-d8eeb47cf0f5&pid=555&sourceUrl=ProductsByCategory.aspx%3fcategoryId%3d100%26pg%3d0
*** http://www.gravitec.com/equipment/anchors/reliance-lockjaw-remote-beam-grip-clamp/anc-re-3040-1/
*** http://www.gravitec.com/equipment/anchors/reliance-lockjaw-remote-beam-grip-clamp/anc-re-3040-1/
 +
 +
* Beam Clamp (unclear manufacturer)
 +
** 3 - 9" flange widths
 +
** WLL, Personal 2,000 lbf.
 +
** WLL, Equipment 4,000 lbf.
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** http://www.rescuetech1.com/beamclamp.aspx

Revision as of 17:01, 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