Rectangular precast, prestressed deck units (also known as bridge planks) come in a large variety of sections and arrangements. The smaller units are solid, but as the depth increases they are voided to reduce dead load and increase structural efficiency. Voids are terminated 450mm in from each end to produce a solid section for end bearing and support. They are simple and speedy to erect with minimum formwork and labour requirements. The bottom edges are virtually abutted, producing a flush soffit and presenting minimum resistance to flood waters. In cut-and-cover tunnels, they easily achieve high fire-resistance ratings.

Download information from the Precast Concrete Handbook here.

Shear Key
These units are used in conjunction with a topping slab which acts compositely with them. They are suitable for short-to-medium span (7m to 19m) applications.

For more information regarding this product please refer to 2.3.1.6 of the Precast Concrete Handbook (click here to buy the Handbook) or talk to one of our Members.

Transversely Stressed
These deck units transversely stressed and do not require an insitu deck except for high skew situations. The advantage of this system is it is simple and quick to erect. There are also advantages associated with the non-availability of skilled labour or supply of high-quality insitu deck concrete in remote locations. Transversely-stressed deck units are suitable for short-to-medium span (10m to 25m) applications and this form of construction has the advantage of a shallow structure depth in overpass applications.

For more information regarding this product please refer to 2.3.1.6 of the Precast Concrete Handbook (click here to buy the Handbook) or talk to one of our Members.

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