IMPROVEMENT IN LOAD SUPPORTING STRUCTURE

摘要

A load supporting structure such as a bridge deck is mounted on two spaced beams and includes a pre-cast concrete panel with a plurality of transverse tension straps attached to the edges of the panel by anchoring studs attache d to the tension member and embedded within the panel such the tension straps- preven t spreading of the panel so that loads are transferred from an upper surface o f the panel to the beams by forming a compressive arch within the panel. A concret e deck slab is cast over the pre-cast panel and is attached to the tension straps by embedded anchor studs located on the straps outside the panel so as to form a compressive arch within the slab. The compressive arch loading avoids the us e of tension reinforcing steel in the concrete which can corrode. The use of a pr e- cast panel and cast slab simplifies assembly as no welding to the beams on site i s required.