Steel Stud Deflection Track
Steel stud size is usually derived from limiting height tables based on the capacity of the steel and the allowable deflection of finis h surfaces.
Steel stud deflection track. Clarkdietrich cold formed steel track u shaped channel runners used as the top and bottom tracks to secure wall studs or end support closures for floor joist framing. Read more about steel framing studs and track. Requires bridging at top of. Head of wall vertical deep leg deflection track systems are required to allow the top of the wall stud to float within the top track legs.
That s why scafco steel framing products are manufactured from 100 prime mill certified steel. The rondo steel stud seismic wall system is designed to allow movement along the wall and provide flexibility at wall junctions due to deflection occurring from a seismic event. Performance that stands up to deflection. 2 1 2 3 1 2 3 5 8 4 5 1 2 6 8 10 12 14 leg heights.
Cgc presents these data as a reference but is not. Slotted track scafco slotted track is the industry preferred system for achieving head of wall deflection and fire resistance for interior and exterior walls. The maxtrak system allows the top of the wall stud to float within the track legs. 33 mils 20ga 43 mils 18ga 54 mils 16ga 68 mils 14ga and.
C955 standard specification for load bearing transverse and axial steel studs runners tracks and bracing or bridging for screw application of gypsum panel products and metal plaster bases e72 standard test methods of conducting strength tests of panels for building construction. This connection allows for vertical live load movement of the primary structure without transferring axial loads to the interior drywall studs. Infill stud use of cripple stud to receive head sill tracks at jamb studs helps maintain alignment of finishes. Single jamb stud.
To allow movement along the stud wall rondo has developed the seismic slotted deflection head track. The limiting heights tables included in the gypsum construction handbook are from astm c754 and were developed by the gypsum association. Back to back header reduces web crippling reinforcement requirements. Provides better load transfer from jamb stud to base track vs.
It has met the movement and cycling requirements of ansi ul 2079 and is ul classified for 1 2 3 and 4 hour fire resistant ratings in head of wall fire rated joint systems. Deflection tracks cannot be used in axial load bearing stud conditions or above continuous window spandrels. Boxed jamb studs welded together reduces material build up and finish problems. 1 1 1 4 1 1 2 2 and 3.
For superior head of wall vertical deflection and the added benefit of horizontal drift movement clarkdietrich introduces two solutions maxtrak slotted deflection track and maxtrak 2d slotted deflection drift track.