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MASONS SUPPLY COMPANY
Oregon (800) 537-3407 ♦ Washington (800) 537-6216
Clackamas | Eugene | West Eugene | Hillsboro | Medford | Portland | Salem | Wilsonville | Ridgefield | Seattle | Tacoma | Woodinville
M A S C O . N E T
FORMING/SYSTEMS
TILT-UP
Double Ground Release II System
Over the last few years, Dayton Superior has seen a trend develop towards the use of heavier tilt-up wall panels
on many of the tilt-up projects erected in the United States. In an effort to reduce the number of rigging changes
required, when these heavier panels are to be erected, Dayton Superior has developed and tested a new, double
insert lifting system for increased lifting capacity. This new lifting system consists of two Ground Release II inserts, two
Ground Release Lifting Hardware units and the Ground Release II Spreader Beam with twin 8½ ton shackles. In order
to develop the safe working loads listed in the Double Ground Release II Insert Selection Chart, our Ground Release
II Inserts must be spaced by the panel contractor at 12" on center. A spacing of less than 12" will greatly reduce the
lifting capacity of the system and the use of wider spacings is not recommended. After the tilt-up panel has been
lifted into position and properly braced off, the two Ground Release II hardware units are released from the panel
in the very same manner used to release single unit. SWL provides a safety factor of approximately 2 to 1 in 2,500 psi
normal weight concrete. Note you must use 2 ground release inserts spaced at 12" on center to obtain SWL on chart.
Consult manufacturers data on values on shear and reduced edge distance.
DOUBLE GROUND RELEASE II
Structural Panel 5"
Thickness
5"
5
½
"
6"
6
½
"
7"
7
½
"
8"
Ground Release II
Anchor Length 3¾"
4¼"
4¾"
5¼"
5¾"
6¼"
6¾"
Insert Safe Working
Load (lbs)
13,000 15,000 17,000 19,000 22,000 24,000 26,000
SWL provides a factor of safety of approximately 2 to 1 in 2,500 psi normal weight concrete.
Consult manufacturers data on values on shear and reduced edge distance.