GB2603195A

GB2603195A - Kit of parts for vehicle security barrier

Info

Publication number: GB2603195A
Application number: GB2101373.5A
Authority: GB
Inventors: Philip Knight Roger; Richard Jefferson Ian
Original assignee: Marshalls PLC
Current assignee: Marshalls PLC
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2022-08-03
Anticipated expiration: 2041-02-01
Also published as: GB2603195B; GB202101373D0

Abstract

A kit of parts for assembly of a vehicle security barrier 10, the kit of parts comprising a beam 100 comprising a first end face 103 and a second end face 104 delimiting a lengthwise extent of the beam, a first face 105 and a second face 106 extending between the first end face and the second end face, and a socket 120 extending from the first face towards the second face. The kit also comprises a post 200 receivable into the socket to support the beam and, when so received, displaceable within the socket along the lengthwise extent of the beam. The socket may define an opening 122 in the first face into which the post is insertable, the opening elongated along the lengthwise extent of the beam to define an opening length along the beam and opening width across the beam, the opening length being greater than the opening width. The application also discloses a vehicle safety barrier installed on a bridge deck, the barrier being assembled from the kit of parts.

Description

KIT OF PARTS FOR VEHICLE SECURITY BARRIER

FIELD

[1] The present disclosure relates in general to a protective barrier. In particular, the present disclosure relates to a kit of parts for assembly of a vehicle security barrier.

BACKGROUND

[2] The control and, more particularly, the restriction of vehicular access to a target area has become an increasingly important security consideration in many countries. By restricting vehicular access to the target area partially or entirely, a vehicle-controlled zone may be formed so that individuals may be protected from a criminal or terrorist act. Vehicular access may be restricted by means of a vehicle security barrier configured to prevent forcible passage by a vehicle to the target area.

[3] For example, a vehicle security barrier may be used along a roadway to restrict access to a footway and/or cycleway. Protection may also be required where the roadway and footway/cycleway continue across a bridge. However, installation on a bridge may be subject to structural limitations. Particularly continuation of the vehicle security barrier across a bridge expansion joint may be needed. It may be possible to install bollards, i.e. free-standing posts which individually or in combination restrict vehicle access, with the bridge expansion joint located between a pair of adjacent bollards. However, the resulting barrier is permeable to pedestrians and this may not be desirable. Thus, for certain applications the installation of bollards may not be an adequate solution since no obstacle to both vehicles and pedestrians is provided. Hence, a continuous obstacle to both vehicles and pedestrians may be desired. Known vehicle security barriers involving a continuous beam carried on posts may not be applicable to applications on a bridge deck, however, because these known vehicle security barriers may not be able to conform to the expansion and contraction of any bridge expansion joint spanned by the vehicle security barrier.

SUMMARY

[4] According to the present disclosure there is provided a kit of parts for a vehicle security barrier as set forth in the appended claims. Other features of the invention will be apparent from the dependent claims, and the description which follows.

[5] Accordingly, there is provided a kit of parts for assembly of a vehicle security barrier (10), the kit of parts comprising: a beam (100) comprising: a first end face (103) and a second end face (104) delimiting a lengthwise extent of the beam (100), a first face (105) and a second face (106) extending between the first end face (103) and the second end face (104), and a socket (120) extending from the first face (105) towards the second face (106); a post (200) receivable into the socket (120) to support the beam (100) and, when so received, displaceable within the socket (120) along the lengthwise extent of the beam (100).

[6] The socket (120) may define an opening (122) in the first face (105) into which the post (200) is insertable.

[7] The opening (122) may be elongated along the lengthwise extent of the beam (100) to define an opening length along the beam (100) and an opening width across the beam (100), the opening length being greater than the opening width.

[8] The post (200) may have a cross-sectional width which is smaller than the opening width.

[9] The post (200) may have a cross-sectional length which is smaller than the opening length. The post (200) may have a cross-sectional length which is greater than the opening width.

[10] The socket (120) may extend from the opening (122) in the first face (105) towards the second face (106) of the beam (100) and terminate at an internal surface (107) of the beam (100).

[11] The post (200) may be insertable into the socket (120) to cause a head end (220) of the post (200) to support the beam (100) by engaging the internal surface (107) of the beam (100). The post (200) may be displaceable within the socket (120) to cause the head end (220) of the post (200) to slide along the internal surface (107) of the beam (100).

[12] The head end (220) of the post (200) may define an elongate top surface (222). The post (200) may be insertable into the socket (120) to cause the elongate top surface (222) of the head end (220) to support the beam (100) by engaging the internal surface (107) of the beam (100).

[13] The post (200) may define a slot (240) extending between a first post face (201) and a second post face (202). The post may be insertable into the socket (120) to locate the slot (240) between the first face (105) and the second face (106).

[14] The kit of parts may comprise a retention member (400) insertable into the slot (240) and removable from the slot (240) in the post (200). The retention member may be insertable into the slot (240) to inhibit removal of the post (200) from the socket (120) when the slot (240) is located between the first face (105) and the second face (106).

[15] The retention member (400) may comprise a central protrusion (420) and a pair of flanking protrusions (440) flanking the central protrusion (420). The central protrusion (420) may be insertable into the slot (240) of the post (200), and the flanking protrusions (440) may extend along side edges (203, 204) of the post (200) when the central protrusion (420) is inserted into the slot (240).

[16] The kit of parts may comprise a cover plate (500) securable to the beam (100) to restrict access to the socket (120) and may restrict access to the slot (240), where provided, when the post (200) is inserted into the socket (120).

[17] The post faces (201, 202) may be flat. The post faces may be parallel.

[18] The socket (120) may be configured to allow displacement of the post (200) within the socket (120) by 30 centimetres along the lengthwise extent of the beam (100).

[19] The beam (100) may comprise a plurality of sockets (120), and the kit of parts comprises a plurality of posts (200), each post (200) receivable into a socket (120) of the plurality of sockets (120).

[20] Each socket (120) of the plurality of sockets may be configured to allow displacement of the respective post (200) receivable into the socket by 15 centimetres along the lengthwise extent of the beam (100) [21] There may be provided a vehicle security barrier (10) installed on a bridge deck (1000), the vehicle security barrier assembled from a kit of parts as described above.

BRIEF DESCRIPTION OF DRAWINGS

[22] For a better understanding of the invention, and to show how example embodiments may be carried into effect, reference will now be made to the accompanying drawings in which: Figure 1 is a perspective view of a vehicle security barrier; Figure 2 is a front view of the vehicle security barrier of Figure 1; Figure 3 is another front view of the vehicle security barrier of Figure 1 in an alternative configuration; Figure 4 is another front view of the vehicle security barrier of Figure 1 in yet another alternative configuration; Figure 5 is a perspective view of part of the vehicle security barrier of Figure 1; Figure 6 is a sectional view of the part of the vehicle security barrier of Figure 5; Figure 7 is a perspective view of a retention member for use with the vehicle security barrier of Figure 1; Figure 8 is a perspective view of part of the vehicle security barrier of Figure 1 with the retention member of Figure 7; Figure 9 is a perspective view of part of the vehicle security barrier as shown in Figure 8 with a cover plate; Figures 10 is a perspective view showing a pair of posts; Figure 11 is a perspective view showing a beam lowered onto the pair of posts of Figure 9; Figure 12 is a perspective view showing a pair of retention members fitted to the posts of Figure 10; Figure 13 is a perspective view showing a pair of cover plates fitted to the beam of Figure 11; and Figure 14 is a plan view of a bridge with the vehicle security barrier spanning a bridge expansion joint.

DESCRIPTION OF EMBODIMENTS

[23] The present disclosure relates to a kit of parts for assembly of a vehicle security barrier providing a continuous obstacle. An example application of the vehicle security barrier relates to protection of a footway and/or a cycleway. In use, the vehicle security barrier may be provided across a bridge expansion joint of a bridge. The vehicle security barrier is configured to conform to expansion and contraction of the bridge expansion joint, thus providing a continuous obstacle capable of spanning the bridge expansion joint without damage to the vehicle security barrier as a result of expansion or contraction.

[24] Figure 1 is a perspective view of a vehicle security barrier 10 according to the present disclosure. The vehicle security barrier 10 is assembled from a kit of parts comprising a beam and a post 200. According to the present example, a pair of posts 200 is provided.

[25] The beam 100 (or 'rigid beam' or 'barrier member') defines a continuous obstacle between the pair of posts 200. In use, the beam 100 may extend along a roadway such that the beam 100 provides an obstacle to vehicles attempting to leave the roadway and to pedestrians attempting to enter the roadway. The beam 100 comprises a first barrier face 101 (or 'surface' or 'front') and a second barrier face 102 (or 'surface' or 'rear). In use, vehicles may be located at the first barrier face 101 while pedestrians may be located at the second barrier face 102. The first barrier face 101 and the second barrier face 102 correspond to opposite faces of the vehicle security barrier 10. The first barrier face 101 and the second barrier face 102 delimit a depthwise extent (or 'depth') of the beam 100.

[26] The beam 100 comprises a first end face 103 and a second end face 104. The first end face 103 (or 'first end') and the second end face 104 (or 'second end') are opposite ends delimiting a lengthwise extent (or 'length') of the beam 100. In particular, the first barrier face 101 extends from the first end face 103 to the second end face 104. Similarly, the second barrier face 102 extends from the first end face 103 to the second end face 104.

[27] The beam 100 comprises a lower face 105 (or 'first face' or 'underside') and an upper face 106 (or 'second face' or 'topside). The lower face 105 and the upper face 106 extend from the first end face 103 to the second end face 104 of the beam 100. The lower face 105 and the upper face 106 are opposite faces of the beam 100, delimiting a heightwise extent (or 'height') of the beam 100.

[28] The beam 100 is supported by the post 200 to prevent the beam 100 from being displaced into a protected area, such as a footway. The post 200 inhibits displacement of the beam 100 in a direction perpendicular to the lengthwise extent of the beam 100 as a result of, for example, a vehicle impact. More particularly, the post 200 inhibits displacement of the beam 100 in a direction perpendicular to the first barrier face 101 and/or the second barrier face 102. The post 200 is in use secured in the ground, for example by means of a base 300 anchored in concrete from which the post 200 extends.

[29] A vehicle impact may generally be expected in a nominal impact direction. The nominal impact direction may be perpendicular to the lengthwise extent of the beam 100, i.e. at angle of 90 degrees relative to the first barrier face 101 or the second barrier face 102. The nominal impact direction may alternatively be in a range from 60 degrees to 90 degrees, or in a range from 45 degrees to 90 degrees, or in a range from 30 degrees to 90 degrees. Irrespective of the precise direction of the impact, a vector component of an impact on the first barrier face 101 or the second barrier face 102 is perpendicular to said barrier faces 101, 102. The vehicle security barrier 10 is configured to withstand displacement by said vector component since this otherwise could in use cause displacement of the beam 100 into a protected area.

[30] The beam 100 comprises a socket 120 configured to receive the post 200. According to the present example, a first socket 120 and a second socket 120 are provided to receive the first post 200 and the second post 200, respectively. The socket 120 is configured to inhibit relative displacement of the beam 100 and the post 200 in a first direction and to permit relative displacement in a second direction. More particularly, relative displacement in a direction perpendicular to the lengthwise extent of the beam 100 is inhibited while relative displacement in a direction parallel to the beam 100 is permitted. Thus, the post 200 is displaceable within the socket 120 along the beam 100. The post 200 is displaceable along the lengthwise extent of the beam 100, i.e. towards the first end face 103 and/or displaceable towards the second end face 104.

[31] The beam 100 may in use provide an obstacle across a bridge expansion joint with the first post 200 mounted on one side of the bridge expansion joint and the second post 200 mounted on the other side of the bridge expansion joint.

[32] Figures 2, 3 and 4 illustrate displacement of the posts 200 relative to the beam 100. Figures 2, 3 and 4 are front views of the vehicle security barrier 10, i.e. views onto the first barrier face 101. In Figure 2, the posts 200 are centrally located within each respective socket 120. For ease of reference, a dashed-dotted line 121 indicates the centre of each socket 120 in Figures 2, 3 and 4.

[33] In Figure 3, each post 200 is displaced outwardly. Such displacement may occur as a result of bridge expansion. As can be seen in Figure 3, the separation between the posts 120 increased and is greater than the separation shown in Figure 2. Thus, each post 200 is displaced towards the end 103, 104 nearest to the post 200.

[34] In Figure 4, each post 200 is displaced inwardly. Such displacement may occur as a result of bridge contraction. Figure 4 shows that the separation between the posts 200 decreased and is smaller than the separation shown in Figure 2. Thus, each post 200 is displaced towards the middle of the beam 100, and away from the nearest end 103, 104 of the beam 100.

[35] The sockets 120 of the beam 100 are configured to allow for 300 millimetres of expansion and contraction. Hence, where two sockets 120 are provided, each socket 120 may allow for 150 millimetres of displacement of the received post 200 along the beam 100, such that in combination a total of 300 millimetres of possible displacement is available. Each socket 120 may allow for at least 50 millimetres of expansion and contraction.

[36] Figures Sand 6 show part of the vehicle security barrier 10, showing the post 200 and the socket 120 at the first end face 103. Figure 5 is a perspective view while Figure 6 is a sectional view. The vehicle security barrier 10 according to the present example is symmetrical, such that the following description is applicable also to the post 200 and the socket 120 at the second end face 104 of the beam 100.

[37] The socket 120 of the beam 100 extends from the lower face 105 towards the upper face 106 of the beam 100. In particular, the socket 120 extends from an opening 122 formed in the lower face 105 towards the upper face 106. The post 200 is insertable into the socket 120 through the opening 122. Insertion of the post 200 is limited by an internal surface 107 of the beam 100. The internal surface 107 (or 'boundary' or 'depthwise boundary') bounds the socket 120, i.e. the socket 120 terminates at the internal surface 107. Thus, the post 200 is insertable into the socket 120 until the post 200 engages the internal surface 107. By causing the post 200 to engage the internal surface 107, the beam 100 may be carried (or 'elevated') by the post 200. More particularly, the beam 100 is carried on a head end 220 of the post 200 engaging the internal surface 107. When so carried, the beam 100 is elevated such that a clearance space is defined between the lower face 105 of the beam 100 and the ground in which the vehicle security barrier 10 is anchored. The clearance space may be approximately 30 centimetres from the lower face 105 to the ground, or as may be, bridge deck.

[38] Relative displacement of the beam 100 and the post 200 causes the head end 220 of the post 200 to slide along the internal surface 107 of the beam 100. As the vehicle security barrier 10 transitions between the configurations shown in Figures 2, 3 and 4, each post 200 slides within the corresponding socket 120.

[39] The socket 120 is elongated along the beam 100. The socket 120 defines a socket length along the lengthwise extent of the beam 100 and defines a socket width along the depthwise extent of the beam 100. The socket length is greater than the socket width. Correspondingly, the opening 122 of the socket 120 is elongated along the lengthwise extent of the beam 100. The opening 122 has an opening length along the lengthwise extent of the beam 100, and an opening width across the beam 100. The opening length is greater than the opening width.

[40] The socket 120 comprises a pair of lengthwise boundaries 124, 126. The lengthwise boundaries 124, 126 bound the space available to the post 200 in the socket 120 along the lengthwise extent of the beam 100, i.e. bound the socket length. A first boundary 124 is provided to stop displacement of the post 200 towards the first end 103, while a second boundary 126 is provided to stop displacement of the post 200 towards the second end 104.

[41] The socket 120 comprises a pair of widthwise boundaries 128, 129. The widthwise boundaries 128, 129 bound the space available to the post 200 in the socket 120 across the beam 100, i.e. bound the socket width. A first boundary 128 is provided to stop displacement of the post 200 towards the first barrier face 101, while a second boundary 129 is provided to stop displacement of the post 200 towards the second barrier face 102. The socket 120 is arranged to substantially inhibit displacement of the post 200 towards either barrier face 101, 102, i.e. resist displacement in a direction perpendicular to the barrier faces.

[42] The post 200 is cross-sectionally elongated. The post 200 has a cross-sectional length and a cross-sectional width, with the cross-sectional length being greater than the cross-sectional length. In particular, the head end 220 of the post 200 defines an elongate top surface 222. The elongate top surface 222 corresponds to the elongate cross-section of the post 200. The post 200 is insertable into the socket 120 to cause the top surface 222 of the head end 220 to carry the beam 100 by engaging the internal surface 107 of the beam 100. When inserted, the elongated top surface 222 extends along the lengthwise extent of the beam 100.

[43] Figures 7 and 8 show a retention member 400 for securing together the beam 100 and the post 200. Figure 7 is a perspective view of the retention member 400, while Figure 8 is a perspective view corresponding to the view of Figure 5 but with the retention member 400 securing the beam 100 and the post 200. The retention member 400 (or 'retention plate') is receivable by the post 200 when the post 200 is located in the beam 100 in order to secure the beam 100 on the post 200. Further, the retention member 400 is removable from the post 200 such that subsequently the beam 100 can be removed from the post 200.

[44] The post 200 defines a slot 240. According to the present example, the slot 240 extends all the way through the post 200. The slot 240 is configured to receive the retention member 400. That is to say, the retention member 400 is insertable into the slot 240. Further, the retention member 400 is removable from the slot 240. As shown in Figure 8, the post 200 is insertable into the socket 120 to locate the slot 240 between the lower face 105 and the upper face 106. When so located, the retention member 400 is insertable into the slot 240 to inhibit removal of the post 200 from the socket 120. Conveniently, the retention member 400 is dimensioned larger than the opening 122. Since the retention member 400 is therefore not moveable through the opening 122, the post 200 is not removable from the opening 122 with the retention member 400 in place.

[45] According to the present example, the beam 100 comprises a lower rail 130 (or 'first rail') and an upper rail 140 (or 'second rail'). The lower rail 130 defines the lower face 105 of the beam 100 and forms the opening 122 into which the post 200 is insertable. The upper rail 140 defines the internal surface 107. Thus, the post 200 is insertable into the socket 120 until the post 200 engages the upper rail 140, thereby locating the slot 240 in the post 200 between the lower rail 130 and the upper rail 140. Following insertion of the retention member 400, the retention member 400 prevents removal of the post 200 from the socket 120 by engaging the lower rail 140.

[46] The retention member 400 comprises a plurality of protrusions 420, 440. According to the present example, three protrusions 420, 440 are provided. Each protrusion 420, 440 extends into the same direction, thereby defining an E-shape, i.e. a shape resembling the letter "E". Thus, the retention member 400 comprises a central protrusion 420. The retention member 400 further comprises a pair of flanking protrusions 440. The flanking protrusions 440 are provided on either side of the central protrusion 420.

[47] The retention member 400 may have a thickness of at least 15 millimetres and up to 30 millimetres. Preferably the retention member 400 has a thickness of 20 to 25 millimetres.

[48] The post 200 defines a first post face 201 and a second post face 202. The first post face 201 and the second post face 202 are opposite faces of the post 200, delimiting a thickness of the post 200. The first post face 201 and the second post face 202 are substantially flat and parallel, i.e. define a plate-shaped post 200.

[49] The slot 240 extends from the first post face 201 to the second post face 202, i.e. extends all the way through the post 200.

[50] The post 200 comprises a first side edge 203 (or 'first side') and a second side edge 204 (or 'second side'). The first side edge 203 and the second side edge 204 are opposite edges of the post 200. The side edges 203, 204 delimit (or 'bound') a width of the post 200.

[51] The post 200 comprises a foot end 210 and a head end 220. The foot end 210 and the head end 220 are opposite ends of the post 200, delimiting a height of the post 200. The side edges 203, 204 extend from the foot end 210 to the head 260.

[52] When the retention member 400 secures the beam 100 and the post 200 together, the central protrusion 420 of the retention member 400 is received into the slot 240 while the flanking protrusions 440 extend along the side edges 203, 204 of the post 200.

[53] Figure 9 shows part of the vehicle security barrier 10, as in Figure 5, with a cover plate 500 secured to the beam 100. The cover plate 500 covers the socket 120. More particularly, the cover plate 500 covers an access opening 108 defined between the lower rail 130 and the upper rail 140.

[54] The cover plate 500 is attachable to the beam 100 in order to restrict access to the socket 120 and, where inserted, the post 200. Thus, the cover plate 500 restricts access to the retention member 400. The retention member 400 is not removable from the post 200 without prior removal of the cover plate 500. Accordingly, the retention member 400 may not need to be fastened to the beam 100 or the post 200.

[55] Figures 10, 11, 12 and 13 illustrate assembly of the vehicle security barrier 10 from the kit of parts according to the present disclosure.

[56] The posts 200 are suitably anchored in the ground. For example, the posts 200 may be mounted on the bases 300 which are secured in a concrete foundation. The posts 200 may in use be provided upright, i.e. extending substantially vertically from the ground.

[57] The beam 100 is lowered onto the posts 200 such that each post 200 is received into the corresponding socket 120. Each post 200 thus extends through the corresponding opening 122 in the lower rail 130 all the way to the internal surface 107 defined by the upper rail 140. The slot 240 in each post 200 is located between the lower rail 130 and the upper rail 140.

[58] Utilising the access openings 108, the retention members 400 are inserted into the slots 240 to secure the beam 100 relative to the posts 200. A first retention member 400 is inserted into the first post 200 and a second retention member 400 is inserted into the second post 200.

[59] A plurality of cover plates 500 is secured to the beam 100 to cover the access openings 108, thereby restricting access to the sockets 120 and, in particular, the retention members 400.

[60] Figure 14 shows an example of the vehicle security barrier 10 in use. Figure 14 is a top-down view onto a bridge deck 1000. A roadway 1100 and a footway 1200 extend along the bridge deck 1000, while a bridge expansion joint 1300 extends across the bridge deck 1000. The first post 200 of the vehicle security barrier 10 is located on one side of the bridge expansion joint 1300, while the second post 200 of the vehicle security barrier 10 is located on the other side of the bridge expansion joint 1300. The beam 100 spans the bridge expansion joint 1300.

[61] The vehicle security barrier 10 according to the present example is manufactured from steel. The beam 100 is made from separate steel sections welded together to provide the beam 100. The post 200, the retention member 400 and the cover plate 500 are made from steel plate. Other suitable metals or materials may be used alternatively.

[62] The post is displaceable relative to the beam along the lengthwise extent of the beam when the post is received into the socket. Where a vehicle security barrier according to the present disclosure spans a bridge expansion joint, displacement of the post along the lengthwise extent of the beam may be necessary for the vehicle security barrier to conform to expansion and contraction of the bridge.

[63] An elongate opening in the beam and a cross-sectionally elongate post may provide a vehicle security barrier with reduced depth.

[64] Configuration of the beam and the post such that the top end of the post slides along the internal surface may improve operation of the vehicle security barrier. In particular, the location where the sliding motion of the beam relative to the post takes place is provided inside the beam, such that exposure to the elements may be reduced and the need for maintenance may be reduced. Further, likelihood of injury may be reduced.

[65] Carrying the beam on the elongate top surface may provide for a beam of reduced depth without reducing the load-bearing capacity of the post.

[66] Utilisation of the retention member may prevent lifting of the beam from the posts or other forms of tampering, whilst also allowing removal of the beam for access purposes.

[67] The shape of the retention member may maximise the surface area to engage with the surface of the beam, thereby improving transfer of loads.

[68] The removable cover plate may improve access to the retention member and restrict unauthorised access to the retention member.

[69] According to the above example, the socket 120 is elongate. According to other examples, the socket 120 may not be elongate and, instead, the post 200 may be cross-sectionally elongated such that displacement within the socket 120 perpendicular to the beam 100 is inhibited but displacement along the beam 100 is permitted.

[70] According to the above example, the vehicle security barrier 10 comprises a pair of post 200 displaceable within the respective sockets 120 into which the posts 200 are received. According to other examples, a single displaceable post 200 may be provided and the other end of the beam 100 may be upheld using alternative means, such as a post fixed relative to the beam 100. According to yet further examples, more than two posts 200 may be provided.

[71] In summary, exemplary embodiments of a kit of parts for assembly of a vehicle security barrier have been described. The described exemplary embodiments provide for an improved kit of parts for assembly of a vehicle security barrier. Additionally, the described exemplary embodiments are convenient to manufacture and straightforward to use.

[72] The kit of parts may be manufactured industrially. An industrial application of the example embodiments will be clear from the discussion herein.

[73] Although preferred embodiment(s) of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention as defined in the claims.

Claims

CLAIMS1. A kit of parts for assembly of a vehicle security barrier (10), the kit of parts comprising: a beam (100) comprising: a first end face (103) and a second end face (104) delimiting a lengthwise extent of the beam (100), a first face (105) and a second face (106) extending between the first end face (103) and the second end face (104), and a socket (120) extending from the first face (105) towards the second face (106); a post (200) receivable into the socket (120) to support the beam (100) and, when so received, displaceable within the socket (120) along the lengthwise extent of the beam (100).
2. The kit of parts according to claim 1, wherein the socket (120) defines an opening (122) in the first face (105) into which the post (200) is insertable, the opening (122) elongated along the lengthwise extent of the beam (100) to define an opening length along the beam (100) and opening width across the beam (100), the opening length being greater than the opening width; and the post (200) has: a cross-sectional width which is smaller than the opening width, and a cross-sectional length which is greater than the opening width and smaller than the opening length.
3. The kit of parts according to claim 2, wherein the socket (120) extends from the opening (122) in the first face (105) towards the second face (106) of the beam (100) and terminates at an internal surface (107) of the beam (100), the post (200) insertable into the socket (120) to cause a head end (220) of the post (200) to support the beam (100) by engaging the internal surface (107) of the beam (100); and wherein the post (200) is displaceable within the socket (120) to cause the head end (220) of the post (200) to slide along the internal surface (107) of the beam (100).
4. The kit of parts according to claim 3, wherein the head end (220) of the post (200) defines an elongate top surface (222) and the post (200) is insertable into the socket (120) to cause the elongate top surface (222) of the head end (220) to support the beam (100) by engaging the internal surface (107) of the beam (100).
5. The kit of parts according to claim 3 or 4, wherein the post (200) defines a slot (240) extending between a first post face (201) and a second post face (202); the post (200) is insertable into the socket (120) to locate the slot (240) between the first face (105) and the second face (106); and a retention member (400) is insertable into the slot (240) and removable from the slot (240) in the post (200); wherein the retention member (400) is insertable into the slot (240) to inhibit removal of the post (200) from the socket (120) when the slot (240) is located between the first face (105) and the second face (106).
6. The kit of parts according to claim 5, wherein the retention member (400) comprises a central protrusion (420) and a pair of flanking protrusions (440) flanking the central protrusion (420); wherein: the central protrusion (420) is insertable into the slot (240) of the post (200), and the flanking protrusions (440) are configured to extend along side edges (203, 204) of the post (200) when the central protrusion (420) is inserted into the slot (240).
7. The kit of parts according to claim 5 or 6, further comprising a cover plate (500) securable to the beam (100) to restrict access to the socket (120) and restrict access to the slot (240) in the post (200) when the post (200) is inserted into the socket (120).
8. The kit of parts according to any one of claims 5 to 7, wherein the post faces (201, 202) are flat.
9. The kit of parts according to any preceding claim, wherein the socket (120) is configured to allow displacement of the post (200) within the socket (120) by 30 centimetres along the lengthwise extent of the beam (100).
10. The kit of parts according to any one of claims Ito 8, wherein the beam (100) comprises a plurality of sockets (120), and the kit of parts comprises a plurality of posts (200), each post (200) receivable into a socket (120) of the plurality of sockets (120).
11. The kit of parts according to claim 10, wherein each socket (120) is configured to allow displacement of the respective post (200) receivable into the socket by 15 centimetres along the lengthwise extent of the beam (100).
12. A vehicle security barrier (10) installed on a bridge deck (1000), the vehicle security barrier assembled from a kit of parts according to any preceding claim.