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

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I-beam rigging clamps
I-beam rigging clamps
* for training at Fire Hall
* for training at Fire Hall
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*: [[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'''
-
*** exterior roof has 12 degrees slope; interior ceiling has 2 angles: the edges are greater, the center less (where we will be working)
+
*** '''determine slope angle'''
** horizontal I-beams, flange approx 7-8 inches wide
** horizontal I-beams, flange approx 7-8 inches wide
*** '''need to determine flange thickness'''
*** '''need to determine flange thickness'''
*** '''more accurately measure flange width'''
*** '''more accurately measure flange width'''
-
 
== Requirements ==
== Requirements ==
* adjustable from 4 to 8 inches
* adjustable from 4 to 8 inches
-
* placeable on sloping I-beam up to 12 degree slope
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* placeable on sloping I-beam
** 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
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** 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.
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** 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 ==
== Product options ==
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=== Not suitable ===
=== Not suitable ===
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* rigging chains
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* rigging chains (require horizontal beam)
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** ''require horizontal beam''
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** http://www.polarfocus.com/view.php?RCS
** http://www.polarfocus.com/view.php?RCS
 +
* http://www.polarfocus.com/view.php?RBC
 +
** "level beams only"
* All Material Handling (AMH)
* All Material Handling (AMH)
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** 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
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** ''not rated for live load''
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** not rated for live load see [http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps pictures]
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*** see [http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps pictures]
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** http://www.stageriggingonline.com/beamclamps.html
** http://www.stageriggingonline.com/beamclamps.html
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** http://www.polarfocus.com/view.php?RBC
 
-
*** ''level beams only''
 

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