Composite structural member, method for manufacturing same, and connecting assemblies for composite structural members

Patent metadata

Field	Value
Publication number	US-2016258160-A1
Application number	US-201415031300-A
Country	US
Kind code	A1
Filing date	Oct 30, 2014
Priority date	Oct 30, 2013
Publication date	Sep 8, 2016
Grant date	—

Abstract

A structural member having a longitudinal axis comprises: an exterior shell member defining an elongated channel with an inner surface; an interior shell member having an outer surface and defining an inner channel, inserted in the elongated channel of the exterior shell member and extending longitudinally therein and defining an inter-shell spacing therebetween; and concrete filling the inter-shell spacing and including at least one reinforcement bar having a longitudinally extending section extending in the inter-shell spacing and being disconnected from the inner surface of the exterior shell member and from the outer surface of the interior shell member.

First claim

1 . A structural member having a longitudinal axis comprising:
an exterior shell member defining an elongated channel with an inner surface; an interior shell member having an outer surface and defining an inner channel, the interior shell member being inserted in the elongated channel of the exterior shell member and extending longitudinally therein; and concrete between the interior shell member and the exterior shell member with at least one reinforcement bar including a longitudinally extending section extending along the longitudinal axis and between the interior shell member and the exterior shell member and being disconnected from the inner surface of the exterior shell member and from the outer surface of the interior shell member, wherein at least one of the inner surface of the exterior shell member and the outer surface of the interior shell member comprises a polymeric coating including abrasive particles.

2 . The structural member as claimed in claim 1 , wherein each one of the interior shell member and the exterior shell member comprises two opposed ends, the ends of the inner shell member being spaced-apart inwardly along the longitudinal axis from a corresponding end of the exterior shell member and being covered with concrete.

3 . (canceled)

4 . The structural member as claimed in claim 1 , wherein the interior shell member has a length along the longitudinal axis shorter than a length of the exterior shell member along the longitudinal axis, the interior shell member being contained in the exterior shell member and surrounded by the concrete, the structural member comprising at least one interior end spacing filled with concrete, the at least one interior end spacing being defined between an end of the interior shell member spaced-apart inwardly along the longitudinal axis from a corresponding end of the exterior shell member, and a length of the at least one interior end spacing is at least 10% of a length of the exterior shell member.

5 . (canceled)

6 . The structural member as claimed in claim 54 , wherein the at least one reinforcement bar comprises a transversally extending section extending from the longitudinally extending section into a respective one of the at least one interior end spacing and a second longitudinally extending section extending from the transversally extending section between the exterior shell member and the interior shell member, the longitudinally and transversally extending sections being embedded in the concrete.

7 . (canceled)

8 . The structural member as claimed in claim 1 , wherein the at least one reinforcement bar comprises a plurality of reinforcement bars connected together to define a reinforced concrete armature embedded in the concrete and spaced-apart from the outer surface of the interior shell member and the inner surface of the exterior shell member.

9 . (canceled)

10 . The structural member as claimed in claim 1 , wherein the at least one reinforcement bar is spaced apart from the inner surface of the exterior shell member and comprises a hook at a free end thereof, and the outer surface of the interior shell member is embedded in concrete.

11 . The structural member as claimed in claim 1 , wherein the inner channel of the interior shell member is at least partially hollow, and wherein between about 30% and about 80% of a volume of the structural member is hollow.

12 . (canceled)

13 . (canceled)

14 . (canceled)

15 . (canceled)

16 . The structural member as claimed in claim 1 , wherein the structural member is an elongated beam and a central longitudinal axis of the interior shell member is decentered on a tension side of the elongated beam and the longitudinally extending section of the at least one reinforcement bar extends on a tension side of the elongated beam.

17 . (canceled)

18 . The structural member as claimed in claim 1 , wherein at least one of the exterior shell member and the interior shell member comprises fiber reinforced polymer.

19 . The structural member as claimed in claim 1 , wherein a ratio of the diameters of the interior shell member and the exterior shell member is between about 0.2 and about 0.8 and a length of the interior shell member is between about 30% to about 80% the length of the exterior shell member.

20 . (canceled)

21 . (canceled)

22 . (canceled)

23 . (canceled)

24 . (canceled)

25 . (canceled)

26 . A structural member having a longitudinal axis comprising:
an exterior shell member defining an elongated channel with an inner surface; an interior shell member having an outer surface and defining an inner channel, inserted in the elongated channel of the exterior shell member and extending longitudinally therein and defining an inter-shell spacing therebetween; and concrete filling the inter-shell spacing and including at least one reinforcement bar having a longitudinally extending section extending in the inter-shell spacing and being disconnected from the inner surface of the exterior shell member and from the outer surface of the interior shell member, wherein the inner channel of the interior shell member comprises opposed end sections filled with concrete and wherein each one of the opposed end sections has a length, and the length of each one of the opposed end sections is about 5% to 20% of the length of the inferior shell member.

27 . The structural member as claimed in claim 26 , wherein each one of the interior shell member and the exterior shell member comprises two opposed ends, the ends of the inner shell member being spaced-apart inwardly along the longitudinal axis from a corresponding end of the exterior shell member and are covered with the concrete.

28 . (canceled)

29 . (canceled)

30 . (canceled)

31 . (canceled)

32 . (canceled)

33 . The structural member as claimed in claim 26 , wherein the at least one reinforcement bar comprises a plurality of reinforcement bars connected together to define a reinforced concrete armature embedded in the concrete and spaced-apart from the outer surface of the interior shell member and the inner surface of the exterior shell member, at least one of the plurality of reinforcement bars comprises a transversally extending section extending from the longitudinally extending section into a respective one of the at least one interior end spacing.

34 . (canceled)

35 . (canceled)

36 . (canceled)

37 . The structural member as claimed in claim 26 , wherein between about 30% and about 80% of a volume of the structural member is hollow.

38 . (canceled)

39 . (canceled)

40 . (canceled)

41 . (canceled)

42 . (canceled)

43 . (canceled)

44 . The structural member as claimed in claim 26 , wherein at least one of the exterior shell member and the interior shell member comprises fiber reinforced polymer, a ratio of the diameters of the interior shell member and the exterior shell member is between about 0.2 and about 0.8 and a length of the interior shell member is between about 30% to about 80% the length of the exterior shell member.

45 . (canc

Assignees

• Socpra Sciences Et Genie Sec

Inventors

• Radhouane MASMOUDI
• Ahmed Abouzied

Classifications

• E04C5/07

  Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal (metal elements with non-structural coatings E04C5/01) · CPC title

• E04C3/293

  the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C3/20) · CPC title

• E04B1/30

  the supporting parts being composed of two or more materials; Composite steel and concrete constructions (of reinforced concrete E04B1/20) · CPC title

• E04B1/215

  comprising metallic plates or parts · CPC title

• E04C3/29

  built-up from parts of different material, {i.e. composite structures} · CPC title