waler

1. (structural engineering) A plank of wood, block of concrete, etc., used for support or to maintain required separation between components in order to help maintain the form of a construction under stress.Examples: "1998, Richard Lampo, Thomas Nosker, Doug Barno, John Busel, Ali Maher, Piyush Dutta, Robert Odello, Construction Productivity Advancement Research (CPAR) Program: Development and Demonstration of Composite FRP Fender, Loadbearing, and Sheet Piling Systems, US Army Corps of Engineers Construction Engineering Research Laboratories, USACERL Technical Report 98/123, page 65, Another consideration is when walers are placed between the piles (Figure 27) and to what extent the pile could deform before the load of the berthing vessel would be shared by the adjacent walers."; "Backing for the plywood is provided by 2” × 12” wooden planks (walers in forming technology) spaced approximately 15 inches apart in the vertical direction and running the full length of the wall section. The form ties are ¾-inch pipe clamps, spaced 6 to 10 feet apart in the horizontal direction. In the typical concrete forms, walers are 2×4's and form ties are spaced at 2-foot intervals. By using 2×12 walers, form ties can be spaced at up to 10-foot intervals."; "An optional cast-in-place concrete waler is shown at each anchor row location. The concrete walers are cast against the earth after installation of the helical anchors and prior to excavation for the next lift. Concrete walers can reduce the required thickness of shotcrete for the remaining facing. The walers also improve punching resistance at the helical tie back locations."