Performance of Precast Thin Panel as Permanent Formwork for Precast Composite Slabs

Abstract

This study investigates the performance of precast thin panel as permanent formwork for precast composite slab. The two-way inverted ribs in the thin panel are placed to enhance its flexural stiffness, as well as providing link between the precast layers. Flexural behaviors of two precast panels are investigated under two line load and distributed load. Test results indicate that the thin panel with suitable ribs layout and support distance can be used as permanent formwork. Typical load from construction worker and in situ elements could be sustained by the panel.