GB2243427A - Structural beam connector - Google Patents

Structural beam connector Download PDF

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Publication number
GB2243427A
GB2243427A GB9006852A GB9006852A GB2243427A GB 2243427 A GB2243427 A GB 2243427A GB 9006852 A GB9006852 A GB 9006852A GB 9006852 A GB9006852 A GB 9006852A GB 2243427 A GB2243427 A GB 2243427A
Authority
GB
United Kingdom
Prior art keywords
connector
structural
rod
hole
apertures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9006852A
Other versions
GB9006852D0 (en
GB2243427B (en
Inventor
Paul R Raybone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEADA ACROW
Original Assignee
LEADA ACROW
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LEADA ACROW filed Critical LEADA ACROW
Priority to GB9006852A priority Critical patent/GB2243427B/en
Publication of GB9006852D0 publication Critical patent/GB9006852D0/en
Publication of GB2243427A publication Critical patent/GB2243427A/en
Application granted granted Critical
Publication of GB2243427B publication Critical patent/GB2243427B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • E04G17/042Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by threaded elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/02Connecting or fastening means for non-metallic forming or stiffening elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/02Connections between parts of the scaffold with separate coupling elements
    • E04G7/06Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/22Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation

Abstract

A connector 2 when used with a structural member 10 having apertures 14 bears against a substantial portion of one of the apertures. The connector includes a hole 8 to which or by which a connecting rod 16, in particular, screwthreaded rod, may be secured thereto. In a preferred form the connector comprises a semi-circular elongate block 4 with flanges 6 at one end. The flanges rest on the structural member and the hole 8 may be plain or screwed. In Fig 5, scaffolding is braced by rods, each having one end screwed to one connector and the opposite end attached to an opposing connector by a nut. <IMAGE>

Description

STRUCTURAL BEAM CONNECTOR, This invention relates to the interconnection of structural members and to the bracing of interconnected structural members and, in particular, it relates to a device for interconnecting and permitting bracing of, structural members which are formed with apertures therein.
Many forms of structural members are known which have apertures therein. One particularly well known form is the structural member which is commonly referred to as a "soldier". Soldiers comprises two back to back members, normally U-section members interconnected by cross plates along their length, the two U-section members being formed with a number of pairs of aligned holes. Soldiers are often employed in scaffolding, horizontal and vertical soldiers being connected at their ends. To increase the strength and rigidity of the scaffolding, bracing members, normally in the form of tie rods, are connected between adjacent horizontal or vertical soldiers or other structural members from which the scaffolding is formed.
A known arrangement for connecting the bracing to the soldiers or other structural member forming the scaffolding, is to weld a flat plate across a pair of aligned holes in the soldier or other structural member.
The flat plate has a hole therein through which one end of the bracing rod can be passed, the bracing then being secured in position be attaching a nut to its end.
This known arrangement has several drawbacks.
Firstly the plates have to be welded in position which adds to the cost and can cause damage to the plates and/or the structural members. Secondly the bracing force is only applied to the soldier or structural member by the contact between the edges of the plate and the walls of the apertures through which it passes which reduces the bracing effect.
In accordance with the invention a connector for use with a structural member, having apertures therein, is so dimensioned and arranged that it can be mounted on the structural member with parts of the device bearing against a substantial portion of the wall of an aperture of the structural member, and so that a rod can be secured thereto.
The advantage of this is that by providing a connector which bears against a substantial portion of the wall of an aperture of the structural member better transferral of load to the structural member is achieved and therefore the strength and the effectiveness of the connection is improved.
Preferably the connector bears against approximately half of the wall of the aperture of the structural member.
In a preferred embodiment the structural member has a plurality of pairs of aligned holes and the connector when mounted on the structural member extends between a pair of aligned holes, part of the connector bearing against a substantial portion of the walls of the holes between which it extends.
The connector may include a flange which, when the connector is mounted on a structural member, abuts a portion of the structural member surrounding the aperture and thereby serves to hold the connector on the structural member.
Suitably the connector has a hole formed therein.
The hole may either be threaded whereby a correspondingly threaded rod can be connected thereto an alternatively the hole can be dimensioned so that a particular size of rod can be passed therethrough. The connector can thus be secured to a rod in one of at least two ways, firstly by providing the connector with a threaded hole therein to which a correspondingly threaded rod can be secured.
Secondly the connector can be provided with a hole dimensioned such that a particular type of rod can be passed therethrough, the rod can then be secured relative to the connector by use of nuts.
The connector in a preferred form comprises a substantially semi-circular elongate block. At one end of the block a flange is provided on either side of the diametrical line. The block may suitably be formed by forging.
The advantages of the connector are that firstly it permits full load transferral from a rod secured thereto to the structural member on which it is mounted. Secondly the connector does not need to be welded into place being held on the structural member by the contact between the connector and the structural member and the flange.
Thirdly the connector is relatively simple and inexpensive to produce.
Furthermore the connector is particular suitable for use with bracing rods. Specifically a connector with a threaded hole can be secured to one end of a threaded bracing rod, the other end of the bracing rod being passed through a connector with a hole dimensioned to allow this.
A threaded nut can then be secured to the free end of the bracing rod and turned to tighten the connection and develop full bracing strength.
The connector may also be employed to allow securement of two soldiers with their axis at right angles to each other. The connector can be mounted in one of the soldiers, a rod secured thereto and the other end of the rod passed between the channels forming a second soldier.
A nut can then be mounted to the free end of the rod to pull the second soldier into contact with the first.
The invention will now be further described by way of example with reference to the accompanying drawings in which: Figure 1 is a plan view of one embodiment of a connector in accordance with the invention; Figure 2 is a side view of the connector of Figure 1; Figure 3 is a end view, taken from above, of the connector of Figure 1; Figure 4 illustrates a use of the connector of Figures 1 to 3 in the connection of soldiers; Figure 5 illustrates another use of the connector of Figures 1 to 3 in the mounting of bracing members in a scaffolding arrangement, and, Figure 6 illustrates a further use of the connector of Figures 1 to 3 in connecting soldiers.
The connector 2 shown in the figures comprises an elongate semi-circular block 4 formed with a pair of flanges 6 at one end. The flanges comprise an extension of the diametrical line of the block 4. A hole 8 extends through the block 4, transverse to the axis thereof.
The hole 8 may either be threaded or it may be plain depending on how the connector 2 is to be used, as discussed further below.
The connector 2 is preferably formed as a forging for reasons of strength and economy of manufacture.
The features of the connector and its advantages will become apparent from the description below of three examples of the uses to which it may be put.
Figure 4 shows two beams 10 being employed as walers in wall formwork. The beams 10 have two webs 12, each web 12 being formed with apertures 14 therein, the apertures 14 in one web being aligned with those of the other. A connector 2 is mounted on each beam 10 by passing it through the pair of aligned holes 14 at the end of the beam 10. The connector 2 is held in the holes by the flanges 6 which abut the web 12 which contains the hole 14 through which it is first passed (hidden from view in Figure 4). As can be seen from Figure 4, when the connectors 2 are in position their semi-circular surfaces are in full contact with the walls of the holes 14. In this use, the connectors 2 have holes 8 which are threaded.
A threaded rod 16 can therefore be screwed into the connectors 2 with a portion of its length extending beyond the end of the beams 10. A third beam 10a can then be secured transversely to the beam 10, this third beam 10a acting as the horizontal backing to the end shutters of the wall formwork. The third beam 10a is attached by positioning its relative the waler beams 10 so that the free ends of the rod 16 pass between its webs 12a. A water plate 18 and a wing nut 20 are then mounted to the extreme ends of the rod 16. Tightening of the wing nuts 20 forces the water plates against the horizontal backing beam 10a and hence forces the horizontal backing beam 10a hard against the waler beams 10. Tightening of the horizontal beam 10a onto the end shutter formed by the walers 10 serves to resist the force of concrete poured into the shutter.
Although in the arrangement described with reference to Figure 4 the horizontal beam was of similar type to the walers, it will be appreciated that the connectors can be used in the way shown, to interconnect other types of apertured structural member to any other structural member, whether apertured or not. For example, instead of the double web beam 10a illustrated in Figure 4, a soldier to be employed as the horizontal beam or a pair of timber beams could be used positioned slightly apart so that the free ends of the rod 16 can be passed through the gap therebetween.
Figure 5 illustrates a scaffolding arrangement in which horizontal and vertical soldiers are connected together at their ends by suitable connecting means 24. To brace the structure, bracing rods 26 are connected between opposite pairs of horizontal or vertical soldiers 22. The bracing rods 26 are threaded and at one end they are secured to a soldier 22 by way of a connector 2 which has a threaded hole 8 therein, by screwing the threaded end of a rod through the threaded hole in the connector. At the other end of each bracing rod 26, a connector 2 with a plain hole, dimensioned so that the bracing rod can be passed therethrough, is employed. The end of the bracing rod 26 is passed through the plain hole of the connector 2 and a nut 28 is screwed onto it. Tightening of the nut 28 acts to tension the bracing.The large area of contact between each connector 2 and the corresponding soldier 22, serves to ensures that the full load can be transferred into a soldier 22 thereby increasing the load capacity of the structure. It will be noted that the connectors can be positioned in any required alignment relative to the soldiers 22, the connectors 2 being held in place by the bracing rods 26 in use. The flanges 6, on the other hand, serve to hold the connectors in particular the soldiers on first insertion, before connection to the bracing rods 26.
Figure 6 illustrates a further use of the connectors 2, similar to that illustrated in Figure 4. In this case a threaded hole connector 2 is employed mounted between an aligned pair of holes in a soldier 30a. One end of a threaded rod 32 is screwed into the connector 2, its other end being passed through between the webs of a second soldier 30b positioned transversely to the first soldier 30a. A wing nut 34 is screwed onto the free end of the rod 32 and tightened up to force the two soldiers 30a and 30b together. In this way a frame of a desired length can be formed for use for example as a cantilevered parapet shutter in bridge structures. It will be noted that the two soldiers 30a and 30b can be connected together at any desired position along their lengths so giving great flexibility in the formation of a frame or other structure therefrom.
The connector described above is capable of a multiplicity of uses with structural member formed as apertures. It allows full load transferal to the structural member to which it is used and therefore permits full realisation of the loading capacity of the structural member because of the large area of contact between the connector and the structural member. It can be orientated in any desired way within an aperture of a structural member as required by the use to which it is to be put.
As mentioned above, the connector can be formed with a threaded or plain hole. In the former case a threaded rod can be secured thereto simply by screwing it into the hole. In the latter case a threaded rod can be passed through the connector and a nut can be threaded onto the end of the rod. This allows the rod to be pulled into tension.

Claims (9)

CLAIMS:
1. A connector for use with a structural member having apertures therein, the connector being so dimensioned and arranged that it can be mounted on the structural member with part of the connector bearing against a substantial portion of the wall of an aperture of the structural member, and, that a rod can be secured thereto.
2. A connector as claimed in Claim 1 wherein the structural member has a plurality of pairs of aligned apertures and wherein the connector, when mounted on the structural member, extends between a pair of aligned apertures, part of the connector bearing against a substantial portion of the walls of the apertures between which it extends.
3. A connector as claimed in Claim 1 or Claim 2 wherein the connector bears against approximately half of the wall of the aperture(s) of the structural member.
4. A connector as claimed in any preceding claim including a flange which, when the connector is mounted on a structural member, abuts a portion of the structural member surrounding the, or an, aperture thereof against the wall of which the connector bears.
5. A connector as claimed in any preceding claim having a hole therein.
6. A connector as claimed in Claim 5 wherein the hole is threaded.
7. A connector as claimed in Claim 5 wherein the hole is dimensioned to allow a connecting rod to be passed therethrough.
8. A connector as claimed in any preceding claim comprising a substantially semi-circular elongate block.
9. A connector substantially as herein described and illustrated in the accompanying drawings.
9. A connector as claimed in Claim 8 wherein a flange is provided on either side of the diametrical line of the block at one end thereof.
10. A connector substantially as herein described and illustrated in the acompanying drawings AMENDMENTS TO THE CLAIMS HAVE BdN RLED FAS FOLLOWS 1. A connector for use with a structural member having at least two webs, each web having a plurality of apertures therein aligned with those in the other web(s), the connector being so dimensioned and arranged that it can be mounted on the member in a position in which it extends between, and at least a part thereof bears against a substantial portion of the walls of, a pair of aligned apertures and that a rod can be secured thereto.
2. A connector as claimed in Claim 1, wherein the connector bears against approximately half of the wall of the aperture(s) of the structural member.
3. A connector as claimed in either Claim 1 or 2 including a flange which, when the connector is mounted on a structural member, abuts a portion of the structural member surrounding the, or an, aperture thereof against the wall of which the connector bears.
4. A connector as claimed in any preceding Claim having a hole therein.
5. A connector as claimed in Claim 4, wherein the hole is threaded.
6. A connector as claimed in Claim 4 wherein, the hole is dimensioned to allow a connecting rod to be passed therethrough.
7. A connector as claimed in any preceding Claim comprising a substantially semi-circular elongate block.
8. A connector as claimed in Claim 7, wherein a flange is provided on either side of the diametrical line of the block at one end thereof.
GB9006852A 1990-03-27 1990-03-27 Structural beam connector Expired - Fee Related GB2243427B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9006852A GB2243427B (en) 1990-03-27 1990-03-27 Structural beam connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9006852A GB2243427B (en) 1990-03-27 1990-03-27 Structural beam connector

Publications (3)

Publication Number Publication Date
GB9006852D0 GB9006852D0 (en) 1990-05-23
GB2243427A true GB2243427A (en) 1991-10-30
GB2243427B GB2243427B (en) 1993-09-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB9006852A Expired - Fee Related GB2243427B (en) 1990-03-27 1990-03-27 Structural beam connector

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GB (1) GB2243427B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739282A (en) * 1953-03-24 1955-10-26 John Burton Improvements in or relating to scaffold frame units for use in scaffolding construction
GB1263023A (en) * 1969-04-26 1972-02-09 Ece Gmbh Joints between plate-form and/or sheet-form members and/or parts of members
GB1596404A (en) * 1977-06-02 1981-08-26 Thomas Ltd Martin Tube end fixtures
GB2153955A (en) * 1982-02-24 1985-08-29 Lionel William King Assembly system
EP0220337A1 (en) * 1985-11-01 1987-05-06 Kabushiki Kaisha Murakoshi Seiko Shelving device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739282A (en) * 1953-03-24 1955-10-26 John Burton Improvements in or relating to scaffold frame units for use in scaffolding construction
GB1263023A (en) * 1969-04-26 1972-02-09 Ece Gmbh Joints between plate-form and/or sheet-form members and/or parts of members
GB1596404A (en) * 1977-06-02 1981-08-26 Thomas Ltd Martin Tube end fixtures
GB2153955A (en) * 1982-02-24 1985-08-29 Lionel William King Assembly system
EP0220337A1 (en) * 1985-11-01 1987-05-06 Kabushiki Kaisha Murakoshi Seiko Shelving device

Also Published As

Publication number Publication date
GB2243427B (en) 1993-09-08
GB9006852D0 (en) 1990-05-23

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020327