The GRIP Recess Plate is a new product to supplement existing wall-connection products from Peikko. The GRIP Recess Plate is a thin, profiled steel sheet used to create a rough concrete surface. With the GRIP Recess Plate, the surface of the concrete is considered to be rough in accordance with EN 1992-1-1 (section 6.2.5). Once the formwork is removed, an embossed surface will remain on the precast concrete surface.
The GRIP Recess Plate is primarily designed to be used in precast wall connections together with SUMO® Wall Shoes, creating a rough surface for improved shear transfer in the joint. However, the GRIP Recess Plate can be used for any application with a concrete surface where a roughened surface is required.
A new White Paper: Shear resistance of precast wall connections using the SUMO® Wall Shoe
How to evaluate the transfer of shear load in a precast wall joint is a difficult question to answer. Peikko has executed a testing procedure to provide a better understanding of the joint mechanism under shear load – using SUMO® Wall Shoes and GRIP Recess Plates. The test results and design recommendations for wall joints are introduced in the White Paper.