Expandable first-aid repair beam based on telescopic diagonal web members

Abstract

The utility model relates to an extensible first-aid repair beam based on telescopic diagonal web members, which comprises a plurality of extensible trusses connected side by side along the transverse bridge direction, or two groups of trusses arranged side by side, the two groups of trusses are symmetrically arranged along the transverse bridge direction, each group of trusses comprises one or more extensible trusses, and a transverse link is arranged between the two groups of trusses; the deployable truss comprises a plurality of framework units which are connected in sequence, and each framework unit comprises at least one deployable truss component; the deployable truss member comprises a lower chord member and an upper chord member, and a plurality of vertical web member assemblies and diagonal web members are arranged between the lower chord member and the upper chord member; the diagonal web members are arranged in a telescopic mode, and locking mechanisms are arranged on the diagonal web members. The unfolding truss component can be in a folded state and an unfolded state, the storage space is small, and the transportation cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge emergency repair, in particular to an expandable emergency repair beam based on a telescopic diagonal web member. Background Art

[0002] Bridges are an important part of the transportation system and are used to cross rivers, canyons and other artificial obstacles. As a transportation powerhouse, my country has a large number of bridges on its various transportation arteries, so sufficient attention should be paid to the engineering technology equipment for bridge emergency repair and traffic maintenance.

[0003] Most of the existing beam repair equipment was designed and developed in the 1960s and 1970s according to the economic and technical conditions at that time. It has poor crossing capacity and traffic capacity, low repair efficiency, and cannot fully meet the needs of modern beam repair projects. Therefore, it is urgent to study a new type of repair beam that can meet the current needs of my country's railway bridge repair. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a deployable emergency repair beam based on a telescopic diagonal web member.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A deployable emergency repair beam based on a telescopic diagonal web member, the key technology of which is that it includes:

[0007] Several deployable trusses connected side by side along the transverse direction of the bridge, or

[0008] Two groups of trusses are arranged side by side, the two groups of trusses are symmetrically arranged along the transverse direction of the bridge, each group of trusses includes one or more pieces of the deployable trusses, and a transverse connection is arranged between the two groups of trusses;

[0009] The deployable truss comprises a plurality of frame units connected in sequence, and the frame unit comprises at least one deployable truss member;

[0010] The deployable truss member comprises a lower chord and an upper chord arranged in parallel up and down, and a plurality of vertical web members and a plurality of diagonal web members are arranged in parallel and spaced apart between the lower chord and the upper chord;

[0011] The vertical web member assembly comprises two vertical web members symmetrically arranged front and rear, and the two ends of the vertical web members are respectively hinged to the lower chord and the upper chord;

[0012] The diagonal web member is telescopically arranged and is provided with a locking mechanism. The diagonal web member is located between the two vertical web members of the vertical web member assembly. The two ends of the diagonal web member are respectively hinged to the lower chord and the upper chord.

[0013] As a preferred embodiment, it further comprises an upper flat joint, a lower flat joint and a bridge deck system, wherein the bridge deck system is arranged on the upper end surface of the upper flat joint;

[0014] The upper parallel link is fixedly connected to the upper chord rod by a bolt assembly;

[0015] The lower parallel link is fixedly connected to the lower chord by a bolt assembly.

[0016] As a preferred embodiment, the diagonal web rod includes an inner diagonal web rod and an outer diagonal web rod sleeved on one end of the inner diagonal web rod, and the inner diagonal web rod and the outer diagonal web rod slide relative to each other to make the diagonal web rod extend and retract; one end of the inner diagonal web rod is hinged on the lower chord rod, and one end of the outer diagonal web rod is hinged on the upper chord rod.

[0017] As a preferred embodiment, the locking mechanism includes: a plurality of inner diagonal web member connecting holes arranged at intervals along the length direction of the inner diagonal web member, and outer diagonal web member connecting holes arranged on the outer diagonal web member and corresponding to the inner diagonal web member connecting holes, the inner diagonal web member connecting holes are opposite to the outer diagonal web member connecting holes to pass bolt assemblies, which are used to fix the expandable truss member in the expanded state.

[0018] As a preferred embodiment, the lower chord adopts an H-shaped section, which includes a lower chord horizontal plate, two lower chord outer vertical plates symmetrically arranged on both sides of the lower chord horizontal plate, and two lower chord inner rib plates symmetrically arranged on the upper end surface of the lower chord horizontal plate;

[0019] The upper chord adopts an H-shaped cross section, which includes an upper chord horizontal plate, two upper chord outer vertical plates symmetrically arranged on both sides of the upper chord horizontal plate, and two upper chord inner rib plates symmetrically arranged on the lower end surface of the upper chord horizontal plate;

[0020] One end of the vertical web member is hingedly arranged between the outer vertical plate of the lower chord and the inner rib plate of the lower chord, and the other end of the vertical web member is hingedly arranged between the outer vertical plate of the upper chord and the inner rib plate of the upper chord;

[0021] The end of the inner diagonal web member is hingedly arranged between the inner ribs of the two lower chords, and the end of the outer diagonal web member is hingedly arranged between the inner ribs of the two upper chords.

[0022] As a preferred embodiment, the upper portion of the upper chord outer side vertical plate protrudes from the upper end surface of the upper chord horizontal plate, and the upper portion of the upper chord outer side vertical plate is evenly provided with a plurality of upper chord inter-sheet connection holes and a plurality of upper level connection holes along its length direction;

[0023] The lower part of the lower chord outer side vertical plate protrudes from the lower end surface of the lower chord horizontal plate, and the lower part of the lower chord outer side vertical plate is evenly provided with a plurality of lower chord inter-sheet connection holes and a plurality of lower horizontal connection holes along its length direction.

[0024] As a preferred embodiment, a plurality of upper chord rib plates are connected between the upper parts of the two upper chord outer side vertical plates, the plurality of upper chord rib plates are evenly arranged, and the lower ends of the upper chord rib plates are connected to the upper chord horizontal plates; two upper level connection holes are symmetrically arranged on both sides of the upper chord rib plates;

[0025] A plurality of lower chord rib plates are connected between the lower parts of the two lower chord outer side vertical plates, and the plurality of lower chord rib plates are evenly arranged, and the lower ends of the lower chord rib plates are connected to the lower chord horizontal plates; two lower horizontal connection holes are symmetrically arranged on both sides of the lower chord rib plates.

[0026] As a preferred implementation, the upper chords and the lower chords of two adjacent deployable truss members are connected via flanges.

[0027] As a preferred implementation, a plurality of diagonal web members in the frame unit are parallel; and the diagonal web members of two adjacent frame units are in opposite or parallel directions.

[0028] As a preferred embodiment, lower chord flanges are provided at both ends of the lower chord, and a plurality of lower chord flange ribs are provided between the lower chord flange and the lower chord horizontal plate; upper chord flanges are provided at both ends of the upper chord, and a plurality of upper chord flange ribs are provided between the upper chord flange and the upper chord horizontal plate.

[0029] The beneficial effects of adopting the above technical solution are:

[0030] The utility model uses a plurality of deployable trusses to form an emergency repair beam for repairing bridges. By increasing or decreasing the number of deployable truss members in the longitudinal direction of the bridge, the needs of repairing bridges of different spans can be met. By increasing the number of deployable trusses in the transverse direction of the bridge, the bearing capacity of the emergency repair beam can be greatly improved, thereby increasing the travel speed of road vehicles or railway vehicles.

[0031] Fast assembly speed. The web members and chord members of the deployable truss member are pre-hinged together, and the deployable truss member can be unfolded by fixing the outer diagonal web members and the inner diagonal web members. The structure is simple, fewer connecting components are required, and the assembly operation is simple and convenient, which greatly saves assembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of an embodiment in which the upper flat joint, the lower flat joint and the bridge deck system are not installed.

[0033] Figure 2It is a front view of an embodiment of the utility model.

[0034] Figure 3 It is a schematic structural diagram of the expandable truss member of the embodiment in a folded state.

[0035] Figure 4 It is a schematic structural diagram of the first frame unit and the second frame unit of the embodiment being preliminarily connected in a folded state.

[0036] Figure 5 It is a schematic structural diagram of another deployable truss according to an embodiment.

[0037] Figure 6 is a side view of a deployable truss member of an embodiment.

[0038] Figure 7 2 is a schematic diagram of the three-dimensional structure of the deployable truss member of the embodiment.

[0039] Figure 8 yes Figure 7 Schematic diagram of the structure from another angle.

[0040] Fig. 9 It is a schematic structural diagram of the diagonal brace of the embodiment.

[0041] Fig.10 2 is a schematic structural diagram of an end portion of a deployable truss member according to an embodiment.

[0042] Fig.11 It is a front view of another embodiment of the utility model.

[0043] Among them: 1 lower chord; 10 lower chord horizontal plate; 11 lower chord outer vertical plate; 12 lower chord inner rib plate; 13 lower chord vertical web member connection hole; 14 lower chord diagonal web member connection hole; 15 lower chord flange; 151 lower chord flange rib plate; 16 lower flat joint connection hole; 17 lower chord rib plate; 18 lower chord inter-piece connection hole;

[0044] 2 Upper chord bar; 20 Upper chord bar horizontal plate; 21 Upper chord bar outer vertical plate; 22 Upper chord bar inner rib plate; 23 Upper chord vertical web bar connection hole; 24 Upper chord diagonal web bar connection hole; 25 Upper chord bar flange; 251 Upper chord bar flange rib plate; 26 Upper flat joint connection hole; 27 Upper chord bar rib plate; 28 Upper chord bar inter-piece connection hole;

[0045] 3 vertical belly bars;

[0046] 4 external oblique belly member; 41 external oblique belly member connection hole; 42 external oblique belly member fixing hole;

[0047] 5 inner oblique belly bar; 51 inner oblique belly bar connection hole; 52 inner oblique belly bar fixing hole;

[0048] 6 upper horizontal joint; 61 upper horizontal joint rib plate; 7 bridge deck system; 8 lower horizontal joint; 9 horizontal joint;

[0049] 100 emergency repair beam; 101 truss beam;

[0050] A The first truss unit; B The second truss unit; C The third truss unit. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is clearly and completely described below in conjunction with specific embodiments.

[0052] like Figures 1 to 10 The deployable emergency repair beam based on the telescopic diagonal web member shown comprises:

[0053] Several deployable trusses are connected side by side, see Figure 2 The plurality of deployable trusses are symmetrically arranged about the vertical center plane 200 of the emergency repair beam 100 .

[0054] The deployable truss includes a plurality of frame units connected in sequence, and the frame unit includes at least one deployable truss member;

[0055] The deployable truss member comprises a lower chord 1 and an upper chord 2 arranged in parallel up and down, and a plurality of vertical web members are arranged in parallel and spaced between the lower chord 1 and the upper chord 2, and a plurality of diagonal web members are arranged in parallel and spaced;

[0056] The vertical web member assembly comprises two vertical web members 3 symmetrically arranged front and rear, and two ends of the vertical web members 3 are hinged to the lower chord member 1 and the upper chord member 2 respectively;

[0057] The diagonal web member is telescopically arranged and is provided with a locking mechanism. The diagonal web member is located between the two vertical web members 3 of the vertical web member assembly. The two ends of the diagonal web member are hinged to the lower chord member 1 and the upper chord member 2 respectively.

[0058] This embodiment further includes an upper flat link 6, a lower flat link 8 and a bridge deck system 7, wherein the bridge deck system 7 is arranged on the upper end surface of the upper flat link 6;

[0059] The upper parallel link 6 is fixedly connected to the upper chord rod 2 by a bolt assembly;

[0060] The lower horizontal link 8 is fixedly connected to the lower chord 1 via a bolt assembly.

[0061] See Figure 7 and Figure 8The lower chord 1 comprises a lower chord horizontal plate 10, two lower chord outer vertical plates 11 symmetrically arranged on both sides of the lower chord horizontal plate 10, and two lower chord inner ribs 12 symmetrically arranged on the upper end surface of the lower chord horizontal plate 10, and a plurality of upper chord inter-sheet connection holes 26 are evenly arranged on the upper portion of the lower chord outer vertical plates 11. The upper chord 2 comprises an upper chord horizontal plate 20, two upper chord outer vertical plates 21 symmetrically arranged on both sides of the upper chord horizontal plate 20, and two upper chord inner ribs 22 symmetrically arranged on the lower end surface of the upper chord horizontal plate 20, and a plurality of lower chord inter-sheet connection holes 16 are evenly arranged on the lower portion of the upper chord outer vertical plates 21. One end of the vertical web member 3 is hingedly arranged between the lower chord outer vertical plate 11 and the lower chord inner rib 12, and the other end of the vertical web member 3 is hingedly arranged between the upper chord outer vertical plate 21 and the upper chord inner rib 22.

[0062] See also Figure 1 The connecting holes 26 between the upper chord pieces and the connecting holes 16 between the lower chord pieces of two adjacent deployable trusses correspond to each other one by one, and are used to penetrate bolt assemblies to connect and fix the two deployable trusses.

[0063] See also Figure 2 A plurality of upper parallel link ribs 61 are arranged at intervals on the lower end surface of the upper parallel link 6, and the upper parallel link ribs 61 are fixedly connected to the upper part of the upper chord outer side plate 21 by a bolt assembly. A plurality of lower parallel link ribs are arranged at intervals on the upper end surface of the lower parallel link 8, and the lower parallel link ribs are fixedly connected to the lower part of the lower chord outer side plate 11 by a bolt assembly.

[0064] See also Figure 1 , and combined with Figure 7 and Figure 8 A plurality of upper chord rib plates 27 are connected between the two upper chord outer side vertical plates 21, and the lower part of the upper chord rib plates 27 is connected to the upper chord 2; a plurality of lower chord rib plates 17 are connected between the two lower chord outer side vertical plates 11, and the upper part of the lower chord rib plates 17 is connected to the lower chord 1.

[0065] See also Fig.10 , both ends of the lower chord 1 are provided with lower chord flanges 15, and a plurality of lower chord flange ribs 151 are provided between the lower chord flange 15 and the lower chord horizontal plate 10. Both ends of the upper chord 2 are provided with upper chord flanges 25, and a plurality of upper chord flange ribs 251 are provided between the upper chord flange 25 and the upper chord horizontal plate 20.

[0066] See also Figures 4 to 5 The diagonal web members of two adjacent frame units can be parallel or opposite.

[0067] The diagonal web member can be telescopically arranged, and the diagonal web member is located between the two vertical web members 3 of the vertical web member assembly. The diagonal web member includes an inner diagonal web member 5 and an outer diagonal web member 4 sleeved on one end of the inner diagonal web member 5. The inner diagonal web member 5 and the outer diagonal web member 4 slide relative to each other to make the diagonal web member telescopic. The end of the inner diagonal web member 5 is hingedly arranged between the two inner ribs 12 of the lower chord, and the end of the outer diagonal web member 4 is hingedly arranged between the two inner ribs 22 of the upper chord. In this embodiment, the locking mechanism includes: a plurality of inner diagonal web member connection holes 52 arranged at intervals along the length direction of the inner diagonal web member 5, and an outer diagonal web member connection hole 42 arranged on the outer diagonal web member 4 and corresponding to the inner diagonal web member connection hole 52, and the inner diagonal web member connection hole 52 is opposite to the outer diagonal web member connection hole 42 to penetrate a bolt assembly, which is used to fix the expandable truss member in the expanded state.

[0068] The deployable truss of this embodiment adopts a foldable and deployable truss member, which has the following beneficial effects:

[0069] Small storage space and low transportation cost. The deployable truss member has two structural states, namely, a folded state and an unfolded state. In the folded state, the telescopic diagonal web of the deployable truss member is extended, which can reduce the overall vertical size of the deployable truss member, save storage space, and facilitate transportation and storage.

[0070] There are few types of parts and high assembly efficiency. The web members and chord members of the deployable truss member are pre-hinged together, and the deployable truss member can be unfolded by fixing the outer diagonal web members and the inner diagonal web members. The assembly is simple and convenient, saving assembly time.

[0071] like Fig.11 As shown, as another preferred embodiment, the deployable repair beam 100 is composed of two groups of trusses 101 arranged side by side, an upper horizontal link 6, a lower horizontal link 8, a cross link 9 and a bridge deck system 7 connecting the two groups of the trusses, and the cross link 9 is X-shaped and arranged between the two trusses 101; the two groups of the trusses 101 are symmetrically arranged along the transverse direction of the bridge, and each group of the trusses includes one or more pieces of the deployable trusses.

[0072] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A deployable emergency repair beam based on a telescopic diagonal web member, characterized in that: It includes: Several deployable trusses connected side by side along the transverse direction of the bridge, or Two groups of trusses (101) arranged side by side, the two groups of trusses (101) being symmetrically arranged along the transverse direction of the bridge, each group of trusses (101) comprising one or more pieces of the deployable trusses, and a transverse link (9) being arranged between the two groups of trusses (101); The deployable truss comprises a plurality of frame units connected in sequence, and the frame unit comprises at least one deployable truss member; The deployable truss member comprises a lower chord (1) and an upper chord (2) arranged in parallel up and down, and a plurality of vertical web members are arranged in parallel and spaced apart between the lower chord (1) and the upper chord (2) and a plurality of diagonal web members are arranged in parallel and spaced apart; The vertical web member assembly comprises two vertical web members (3) symmetrically arranged front and rear, and the two ends of the vertical web members (3) are respectively hinged to the lower chord member (1) and the upper chord member (2); The diagonal web member is telescopically arranged and is provided with a locking mechanism. The diagonal web member is located between the two vertical web members (3) of the vertical web member assembly. The two ends of the diagonal web member are respectively hinged to the lower chord member (1) and the upper chord member (2).

2. The deployable emergency repair beam based on telescopic diagonal web members according to claim 1, characterized in that: It also includes an upper flat link (6), a lower flat link (8) and a bridge deck system (7), wherein the bridge deck system (7) is arranged on the upper end surface of the upper flat link (6); The upper parallel link (6) is fixedly connected to the upper chord rod (2) via a bolt assembly; The lower parallel link (8) is fixedly connected to the lower chord (1) via a bolt assembly.

3. The deployable emergency repair beam based on telescopic diagonal web members according to claim 1, characterized in that: The diagonal web member comprises an inner diagonal web member (5) and an outer diagonal web member (4) sleeved on one end of the inner diagonal web member (5), wherein the inner diagonal web member (5) slides relative to the outer diagonal web member (4) so ​​that the diagonal web member can be extended or retracted; one end of the inner diagonal web member (5) is hingedly arranged on the lower chord member (1), and one end of the outer diagonal web member (4) is hingedly arranged on the upper chord member (2).

4. The deployable emergency repair beam based on telescopic diagonal web members according to claim 3, characterized in that: The locking mechanism comprises: a plurality of inner diagonal web member connection holes (52) arranged at intervals along the length direction of the inner diagonal web member (5), and outer diagonal web member connection holes (42) arranged on the outer diagonal web member (4) and corresponding to the inner diagonal web member connection holes (52), wherein the inner diagonal web member connection holes (52) are opposite to the outer diagonal web member connection holes (42) for passing bolt assemblies, and are used to fix the deployable truss member in the deployed state.

5. The deployable emergency repair beam based on telescopic diagonal web members according to claim 3, characterized in that: The lower chord (1) has an H-shaped cross section and comprises a lower chord horizontal plate (10), two lower chord outer vertical plates (11) symmetrically arranged on both sides of the lower chord horizontal plate (10), and two lower chord inner rib plates (12) symmetrically arranged on the upper end surface of the lower chord horizontal plate (10); The upper chord (2) has an H-shaped cross section and comprises an upper chord horizontal plate (20), two upper chord outer vertical plates (21) symmetrically arranged on both sides of the upper chord horizontal plate (20), and two upper chord inner rib plates (22) symmetrically arranged on the lower end surface of the upper chord horizontal plate (20); One end of the vertical web member (3) is hingedly arranged between the outer side vertical plate (11) of the lower chord and the inner side rib plate (12) of the lower chord, and the other end of the vertical web member (3) is hingedly arranged between the outer side vertical plate (21) of the upper chord and the inner side rib plate (22) of the upper chord; The end of the inner diagonal web member (5) is hingedly arranged between the two inner ribs (12) of the lower chord, and the end of the outer diagonal web member (4) is hingedly arranged between the two inner ribs (22) of the upper chord.

6. The deployable emergency repair beam based on telescopic diagonal web members according to claim 5, characterized in that: The upper portion of the upper chord rod outer side vertical plate (21) protrudes from the upper end surface of the upper chord rod horizontal plate (20), and the upper portion of the upper chord rod outer side vertical plate (21) is evenly provided with a plurality of upper chord rod inter-sheet connection holes (28) and a plurality of upper level connection holes (26) along its length direction; The lower portion of the lower chord outer side vertical plate (11) protrudes from the lower end surface of the lower chord horizontal plate (10), and the lower portion of the lower chord outer side vertical plate (11) is evenly provided with a plurality of lower chord inter-sheet connection holes (18) and a plurality of lower horizontal connection holes (16) along its length direction.

7. The deployable emergency repair beam based on telescopic diagonal web members according to claim 6, characterized in that: A plurality of upper chord rib plates (27) are connected and arranged between the upper parts of the two upper chord outer side vertical plates (21), the plurality of upper chord rib plates (27) are evenly arranged, and the lower ends of the upper chord rib plates (27) are connected to the upper chord horizontal plates (20); two upper level connection holes (26) are symmetrically arranged on both sides of the upper chord rib plates (27); A plurality of lower chord rib plates (17) are connected and arranged between the lower parts of the two lower chord outer side vertical plates (11); the plurality of lower chord rib plates (17) are evenly arranged; the lower ends of the lower chord rib plates (17) are connected to the lower chord horizontal plates (10); and two lower horizontal connection holes (16) are symmetrically arranged on both sides of the lower chord rib plates (17).

8. The deployable emergency repair beam based on telescopic diagonal web members according to claim 1, characterized in that: The upper chords (2) and the lower chords (1) of two adjacent deployable truss members are connected via flanges.

9. The deployable emergency repair beam based on telescopic diagonal web members according to claim 1, characterized in that: The plurality of diagonal web members in the frame unit are parallel to each other; the diagonal web members of two adjacent frame units are in opposite or parallel directions.

10. The deployable emergency repair beam based on telescopic diagonal web members according to claim 5, characterized in that: Both ends of the lower chord (1) are provided with lower chord flanges (15), and a plurality of lower chord flange ribs (151) are provided between the lower chord flange (15) and the lower chord horizontal plate (10); Both ends of the upper chord rod (2) are provided with upper chord rod flanges (25), and a plurality of upper chord rod flange ribs (251) are provided between the upper chord rod flange (25) and the upper chord rod horizontal plate (20).

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