Structures

Bolted, corrugated metal structures (BCMS) B200



Bolted, corrugated metal structures (‘BCMS’) are manufactured as curved, corrugated plates, which are then assembled on-site. The manufacturing process allows for a wide range of structure shapes, in addition to circular culverts, suited to a wide range of applications. We manufacture the B200 200mm x 55mm corrugation profile in Townsville, whilst the B150 150 x 50mm and the B318 381mm x 140mm deep-corrugation profile is supplied by the leading manufacturer in South Korea, Fixon Inc.


The B200 structures are used for underpasses, stockpile conveyor tunnels, and decline tunnels, in addition to traditional culverts. The full range of geometric shapes and dimensions are available in our download section.

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Bolted, corrugated metal structures (BCMS) B381



The B381 profile offers a more limited range of structure shapes but has a greatly enhanced structural capacity, allowing for much larger arch spans and live load capacity. The large-span arches are typically used for rail and road underpasses, as a cost-effective alternative to pre-cast concrete structures, or large-span stockpile tunnels under high-capacity stockpiles. The B381 structures also include a wide range of wide-span low-profile Box Culverts, as a direct alternative to RC box culverts.


The strength of B381 arches can be further increased by the installation of double-ribs. In extreme loading cases, the void created by the twin-rib structure can also be grouted and reinforced. In all cases, site assembly is quick and efficient with full site support provided by our experienced staff. Further product details are available in the downloads section, together with our Project Reference detailing many of the projects completed in Australia.

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