MA WAN VIADUCT. TRACK-SLAB RESTRAINT CORBELS.
Small concrete corbels were required to replace steel brackets to provide lateral restraint to a floating track slab. The small size of the corbels required careful detailing of the reinforcement and bolt sleeves to avoid clashes. We prepared a wire frame and surface model of the corbel to verify the proposed details and provide accurate reinforcement cutting and bending dimensions.
WIRE FRAME AND SURFACE MODELING.
We have used these techniques on various projects for simple visualisations of complex or congested areas to asses buildability and check for clashes. Some our past projects are illustrated below.
HUNG HOM BYPASS.
BALANCED CANTILEVER PIER-HEADS. TEMPORARY WORKS.
A complex array of temporary works had to be cast in to the pier-heads of this balanced cantilever viaduct to allow attachment of working platforms and brackets to support the launching girder. Curved ducts were also provided to received the temporary pre-stressing cables which secured the deck to the pier until the cantilevers were linked and the deck was transferred to its permanent bearings. To accommodate these temporary works the permanent drainage pipes had to be diverted. We prepared a wire frame and surface models of the pier-heads in order to check for clashes and to provide accurate dimensions for the drainage pipes and stressing ducts.
