Performance of joints in reinforced concrete slabs for two-way spanning action

Abstract

A series of tests on filigree slab joints was performed with the aim of assessing whether such joints can be reliably used in the construction of two-way spanning reinforced concrete slabs. The test results were compared with code requirements. Adequate joint performance is shown to be achievable when the joints are appropriately detailed.Further research is recommended for the formulation of a more generic understanding when the design parameters are varied from those studied in this work.

Cracking Analysis of Precast – In Situ Reinforced Concrete Slab With Plastic Void Formers

“…Kitų autorių tyrimų (Ibrahim et al, 2019;Stehle et al, 2011;Mohamed et al, 2020;Hegger et al, 2003) analizė parodė, kad galima išskirti tris tokio tipo plokščių darbo etapus. Pirmajame etape konstrukcija dirba tampriai, dar nėra pasireiškusios plastinės deformacijos.…”

Deflection Analysis of Layered Slabs with Plastic Inserts

“…A prefabricated monolithic overlay slab is a layered reinforced concrete structure consisting of prefabricated components and a layer of monolithic concrete. Filigree/Omnia prefabricated monolithic overlay slab is produced from residual reinforced concrete formwork and a layer of concrete cast in situ [ 1 , 2 ]. Such types of overlay slabs allow creating large hollows in the overlay.…”

“…Truss increases the stiffness of the residual reinforced concrete formwork and improves the bond between the prefabricated reinforced concrete slab and the monolithic concrete layer. Truss bars at the bottom act as tensile reinforcement [ 1 , 2 ].…”

Out‐of‐plane flexural behavior of full precast concrete hollow‐core slabs with lateral joints

“…To satisfy the demand for large plane dimensions, CSs or full PCHSs can be connected by post‐pouring concrete to form a whole slab 14 . Furthermore, the results of some analyses 15,16 have shown that the joints constructed by post‐pouring concrete can transmit force well when using them to connect CSs (see Figure 2). However, Lundgren 17,18 noted that joints connecting CSs need to transfer loads in two directions, which indicates that the demands for mechanical properties on joints need to be enhanced.…”