FRP ledge angle
FRP ledge angle
(OP)
I have very little experience using FRP so I am looking for some input here from folks who have worked with this material. Please see the attached sketch. The FRP angle is proposed (by the architect) to support the curtain wall and its preferred over steel because for better thermal results.
• The little bit of research I have done indicates that FRP angle can't be used in flexure. I am not sure if that applies to this condition.
• Second question: Are their grades of FRP similar to aluminum and if so what the most common grade/type.
• The little bit of research I have done indicates that FRP angle can't be used in flexure. I am not sure if that applies to this condition.
• Second question: Are their grades of FRP similar to aluminum and if so what the most common grade/type.






RE: FRP ledge angle
Thermal breaks are great for energy savings, but at the expense of the structure is always a concern to me.
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: FRP ledge angle
RE: FRP ledge angle
RE: FRP ledge angle
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: FRP ledge angle
RE: FRP ledge angle
RE: FRP ledge angle
http://www.modernsteel.com/Uploads/Issues/January_...
RE: FRP ledge angle
First of all there are no real "grades" of FRP. As a matter of fact, while processes and profiles may be similar from vendor to vendor they are not automatically interchangeable. It is much like getting anchors from Powers or Hilti - kinda similar but each has their own characteristics. One more elaboration... FRP encompasses much more than the plates and profiles referred to here. These other items are manufactured far differently and have wide ranging strengths and properties. This detail is referring specifically to pultrusions.
I don't know the clearances involved or the design requirements, but be aware that FRP has as much as 3x the thermal expansion of steel.
In the Modern Steel article there is a detail of a bent plate of FRP. You could fabricate such a critter, but not bend it like steel.
All the best.