Page 26 - Concrete Handbook 2017
P. 26

STEEL-PLY MAXI-WALER & HORIZONTAL GANG FORMING




               MAXI-WALER GANG FORMING

                                                              Standard Wedge Bolts
               Steel channel                                                                        Steel-Ply Forms
               The Maxi-Waler System uses double 75mm steel channels
               attached to Steel-Ply at 50mm O.C. vertical spacing. The channel                          Double 75mm
               serves as both load-gathering member and aligner for the gang. “L”                        Aligner Channels
                                                                                                         as Walers
               Washers and 20mm Gang Waler Rods secure the steel channels to
               the forms for a positive connection.                                              J Strongback Rod provides
               Vertical Walers                                                                   secure connection of Walers
                                                                                                 & Strongbacks
               The Maxi-Waler System uses double channel steel walers to
               transfer the load from the 75mm channels. J-Strongback Rods and                      17mm Diameter Holes
               Plate Washers connect to the 75mm channels at specific vertical                      150mm O.C.
               locations. To prevent slippage, Panel Waler Connectors and Clip
               Angles are bolted to the Waler at two connection sites.  125mm Double Channel
               Walers are spaced at 100mm centres for maximum form design   Strongback
               utilization.
               127mm and 203mm Steel Walers
               For maximum form design utilization, 127mm and 203mm Waler
                                       2
               sizes. Tie areas of up to 2.97M  can be achieved, resulting in fewer
               ties per pour and less tie patching.                         Welded Plate Gussets
               Both 127mm and 203mm Walers are available in standard lengths
               of 1220mm, 2.69M, 3.66M and 4.88M. The 127mm Walers are also
               available in a 1.83M length.                                                     125mm Waler 200mm Waler


               HORIZONTAL GANG FORMING
                                                                          Wedge Bolts
               Horizontal Steel-Ply gangs
               Horizontal Steel-Ply gang forms utilize vertical steel Walers.   Horizontal Panels         Gang Waler Rod
               This permits the use of high capacity Taper Ties or She-  or Fillers
               Bolts.                                                                                   Plate Washer
               Horizontal Steel-Ply gangs are assembled using 1800mm                                     12mm Nut
               and 900mm panels in a “brick” pattern layout.
               Waler connection Steel Walers are easily connected with                                    Steel Waler
               20mm Gang Waler Rods, Plate Washers and 12mm diameter
               Contour Nuts. Walers are placed 450mm from gang ends
               and at 900mm O.C. spacing.
               Panel Waler Connector                                                                          Gang Waler
               To prevent Waler slippage, a Panel Waler Connector is                                          Rod
               attached through the Gang Waler Rod and bolted to the steel
               Walers. Panel Waler Connectors can also connect the  Typical Waler Connection                  Panel
                                                                                                              Waler
               horizontal Strongbacks to vertical steel Walers.                                               Connector
               Strongback
               1500mm Walers used as Strongbacks provide stiffness and                                        50 x 16mm
                                                                                                              Fit-up Bolts
               horizontal alignment to the gang.
               These Walers are attached with 215mm J-Bolts, Plate
               Washers and 16mm Contour Nuts. Strongbacks are usually   Panel Waler Connection
               placed at the top and bottom of each gang.
                                                                                                              Steel Waler





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