Module for a structure
A construction module for a structure, comprising: a formwork member that includes a base, a pair of parallel side walls that extend upwardly from the base, and a pair of parallel end walls. The base, the side walls and the end walls define a cavity for reinforcement and concrete. A reinforcement member includes an upper portion and a lower portion. When the reinforcement member is located in the cavity and concrete fills the cavity, the lower portion of the reinforcement member and the concrete define an elongate beam.
1. A reinforced bridge comprising at least one module, the module comprising:
a formwork member configured as a formwork tray, the formwork tray including a base and a pair of side walls that extend upwardly from the base and defines a cavity for reinforcement and concrete, the formwork tray comprising an upper portion and a lower portion, the upper portion having a larger cross-sectional area than that of the lower portion; and
a reinforcement member that includes an upper portion that is formed to extend across a width and along a length of the upper portion of the formwork tray, and a lower portion that is formed to extend at least substantially along the length of the lower portion of the formwork tray, the lower portion of the reinforcement member comprising a plurality of trusses,
wherein the reinforcement member is located in the cavity, such that the module spans at least partially along a width of the bridge and a length of the bridge, and concrete fills the cavity at least partially covering the reinforcement member, such that a portion of the reinforcement member of the module and the concrete defines at least one elongate beam.
2. The reinforced bridge of claim 1 , wherein either of the formwork tray or the reinforcement member is tensionable such that the module is pre-tensioned.
3. The reinforced bridge of claim 1 , wherein the lower portion of the formwork tray comprises at least two spaced-apart elongate cavities, and when the reinforcement member is located in the cavity, the lower portion of the reinforcement member and the concrete define at least two elongate beams.
4. The reinforced bridge of claim 3 , wherein the plurality of elongate beams span the length of the module, each of the plurality of beams separated by land portions.
5. The reinforced bridge of claim 3 , wherein a section of the base of the formwork tray projects upwardly from the base and defines a land portion that separates the at least two elongate cavities of the lower portion of the formwork member.
6. The reinforced bridge of claim 1 , wherein at least one of the formwork tray and the reinforcement member further comprises engagement members to interconnect with a subsequent module or alternative supporting structure.
7. The reinforced bridge of claim 1 , wherein the lower portion of the reinforcement member extends around a peripheral portion of the formwork tray.
8. The reinforced bridge of claim 1 , wherein the reinforcement is made from mesh that includes a plurality of parallel line wires and a plurality of parallel cross-wires connected together.
9. The reinforced bridge of claim 1 , wherein the upper portion of the reinforcement member comprises a plurality of layers of mesh.
10. The reinforced bridge of claim 1 , wherein the lower portion of the reinforcement member and the upper portion of the reinforcement member are integrally formed.
11. The reinforced bridge of claim 1 , wherein the reinforcement member is configured to conform to the cavity of the formwork tray.
12. The reinforced bridge of claim 1 , wherein at least one of the upper portion of the reinforcement member and the lower portion of the reinforcement member projects upwardly from the module and extends above the cavity.
13. The reinforced bridge of claim 1 comprising a single module, the module forming a span of the bridge.
14. The reinforced bridge of claim 1 , wherein the formwork tray includes a pair of end walls.
15. A module for constructing a bridge according to claim 1 , wherein the module is supported by a pair of abutments located at opposing ends of the module, and concrete fills the cavity at least partially covering the reinforcement member and at least a portion of each of the pair of abutments, such that the reinforcement member of the module and the formwork tray become engaged with the pair of abutments as the concrete cures.
16. An assembly of a formwork member configured as a formwork tray, the formwork tray defining a cavity for reinforcement and concrete, the formwork tray comprising an upper portion and a lower portion, the upper portion having a larger cross-sectional area than that of the lower portion, and a reinforcement member that includes an upper portion that is formed to extend across the width and along the length of the upper portion of the formwork tray and a lower portion that is formed to extend at least substantially along the length of the lower portion of the formwork tray, the lower portion of the reinforcement member comprising a plurality of trusses and wherein the lower portion of the reinforcement member located in the cavity defines an elongate beam.