Double-flange butterfly-shaped steel truss girder support

Abstract

The utility model relates to the technical field of bridge accessories, in particular to a double-flange butterfly-shaped steel truss girder support which comprises a group of gusset plates, a chord member top plate, a chord member bottom plate and a support bottom plate. One gusset plate is inserted into the chord member top plate, the other gusset plate is welded and fixed with the side surface of the chord member top plate, the chord member bottom plate is arranged between the gusset plates, the gusset plates, the chord member top plate and the chord member bottom plate are combined to form a chord member box body, and the support bottom plate is arranged at the lower part of the chord member bottom plate. And a web member connecting plate is arranged at the upper part of the gusset plate. The steel truss girder support is divided into a node plate, a chord member top plate, a chord member bottom plate, a support bottom plate and other modules, splicing welding is adopted, so that it is guaranteed that the manufacturing precision requirement of nodes meets the design and specification requirements, and the deformation quantity is reduced. The structure is simple, a module combined type installation structure is adopted, machining difficulty is low, deformation is not prone to occurring, and connection reliability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge accessory technical field, especially relate to a double wing margin butterfly steel truss beam support. BACKGROUND

[0002] With the rapid development of bridge engineering such as passenger dedicated line railway, high speed railway, highway and city overpass in our country, steel truss girder bridge is a common bridge type of railway bridge, and the load such as the dead weight of girder and vehicle weight is transmitted to truss node by truss link, and then is transmitted to bridge pier through support at node.

[0003] At present, in order to use one bridge for multiple purposes, the steel bridge adopts the form of double-layer steel truss girder bridge, and the upper chord (lower chord) is connected through web member, and the upper chord (lower chord) is connected through steel truss girder support in series, and the both ends of web member are connected through steel truss girder support, but the existing steel truss girder support structure is complex, the welding residual stress is large, the deformation is also large, the processing difficulty is large, and the connection reliability is greatly discounted.

[0004] Therefore, the above problems need to be solved. UTILITY MODEL CONTENT

[0005] The utility model relates to a double wing margin butterfly steel truss girder support, which has simple structure, adopts modular combined installation structure, has low processing difficulty, is not easy to deform, and has high connection reliability.

[0006] Technical scheme: in order to realize the above object, the utility model provides a double wing margin butterfly steel truss girder support, which comprises a group of node plates, chord top plates, chord bottom plates and support bottom plates.

[0007] One node plate is inserted on the chord top plate, and the other node plate is welded and fixed with the side surface of the chord top plate, the chord bottom plate is arranged between the node plates, the node plate, chord top plate and chord bottom plate are combined to form a chord box, the support bottom plate is arranged at the lower part of the chord bottom plate, and the upper part of the node plate is provided with a web member connecting plate. The steel truss girder support is divided into node plates, chord top plates, chord bottom plates and support bottom plates and other modules, and is welded by assembling, so as to ensure that the manufacturing precision of the node meets the design and specification requirements, and the deformation amount is reduced.

[0008] Further, the chord top plate is provided with a notch along the length direction, one of the node plates is arranged through the notch, a group of first stiff plates are arranged on the bottom surface of the chord top plate along the length direction, the upper surface of the chord bottom plate is provided with a second stiff plate along the length direction, and the inner side surface of the node plate is provided with a third stiff plate. The node plate is inserted into the chord top plate through the notch, and the positioning welding between the two is facilitated.

[0009] Further, the chord box is internally provided with a plurality of transverse partitions, the transverse partitions are provided with U-shaped clamping grooves around, and the U-shaped clamping grooves are clamped into the first stiff plate, the second stiff plate and the third stiff plate respectively. The transverse partitions are clamped with the first stiff plate, the second stiff plate and the third stiff plate through the U-shaped clamping grooves, and the positioning and installation of the auxiliary node plate and the chord bottom plate are assisted, and meanwhile the transverse partitions play a role in enhancing the structural strength of the chord box.

[0010] Further, the web connecting plate comprises a reference plate, a first inclined plate and a second inclined plate, the reference plate is vertically arranged between the node plates, the bottom surface of the reference plate is welded with the chord top plate, the first inclined plate and the second inclined plate are arranged between the node plates in an inclined manner, and a plurality of bolt holes are arranged on the first inclined plate and the second inclined plate. The first inclined plate and the second inclined plate are referenced with the reference plate, so that the first inclined plate and the second inclined plate can be correctly installed on the node plates.

[0011] Further, the support bottom plate comprises a bottom plate, a pad plate and a reinforcing assembly, the bottom plate is arranged at the bottom of the node plate, the pad plate is arranged on the bottom surface of the bottom plate, and the reinforcing assembly is arranged between the bottom plate and the chord bottom plate.

[0012] Further, the reinforcing assembly comprises a plurality of cross rib plates and partitions, the partitions are symmetrically arranged relative to the cross rib plates, and the two sides of the cross rib plates and the partitions are welded with the node plate; and the pad plate and the bottom plate are provided with bolt holes. The cross rib plates and the partitions are arranged between the bottom plate and the chord bottom plate to enhance the load resistance.

[0013] Further, the support outside stiff plate and the corbel are further included, the corbel comprises an end plate and a vertical plate, the vertical plate is arranged on the end plate at the bottom, the vertical plate is provided with a clamping groove at the top end, the clamping groove is clamped into the first stiff plate, and the end plate is welded with the outer side surface of the node plate.

[0014] Further, the support outside stiff plate comprises short stiff plates arranged on both sides and welded with the bottom plate and the outer side surface of the node plate and a long stiff plate arranged in the middle, the top end of the long stiff plate is provided with a clamping groove and clamped into the first stiff plate, and the bottom surface and the side surface of the long stiff plate are welded with the bottom plate and the outer side surface of the node plate respectively.

[0015] Further, the two sides of the chord box are provided with a plurality of bolt holes.

[0016] The above technical scheme can have the following beneficial effects compared with the prior art:

[0017] The double-winged butterfly-shaped steel truss support has the advantages that the structure is simple, the support is divided into multiple components, the components are positioned and welded, the assembly is more convenient, and the deformation amount of welding is controlled; the transverse partitions, the cross rib plates and the partitions are arranged inside the steel truss support, the support outside stiff plate and the corbel are arranged outside the steel truss support, and the structural strength of the entire support is enhanced, the load resistance is high, and the connection reliability is high. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic view of a double-wing butterfly-shaped steel truss beam support according to the utility model

[0019] Figure 2 A structure schematic view of a chord top plate according to the utility model

[0020] Figure 3 A structure schematic view of a cross partition plate according to the utility model

[0021] Figure 4 A structure schematic view of a web connecting plate according to the utility model

[0022] Figure 5 A structure schematic view of a bottom plate according to the utility model

[0023] Figure 6 A structure schematic view of a reinforcing assembly according to the utility model

[0024] Figure 7 A structure schematic view of a bracket according to the utility model

[0025] In the figure: 1 - node plate, 11 - third stiff plate, 2 - chord top plate, 21 - notch, 22 - first stiff plate, 3 - chord bottom plate, 31 - second stiff plate, 4 - support bottom plate, 41 - bottom plate, 42 - cushion plate, 43 - cross rib plate, 44 - partition plate, 5 - web connecting plate, 51 - reference plate, 52 - first inclined plate, 53 - second inclined plate, 6 - cross partition plate, 61 - U-shaped groove, 7 - support outer side stiff plate, 8 - bracket, 81 - end plate, 82 - vertical plate. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are merely exemplary and not intended to limit the present utility model.

[0027] As shown in Figure 1 A double-wing butterfly-shaped steel truss beam support, comprising a set of node plates 1, chord top plates 2, chord bottom plates 3 and support bottom plates 4.

[0028] One of the node plates 1 is inserted on the chord top plate 2, and the other node plate 1 is welded and fixed with the side surface of the chord top plate 2, the chord bottom plate 3 is arranged between the node plates 1, the node plates 1, the chord top plates 2 and the chord bottom plates 3 are combined to form a chord box, the support bottom plate 4 is arranged at the lower part of the chord bottom plate 3, and the upper part of the node plate 1 is provided with a web connecting plate 5.

[0029] As shown in Figure 2As shown in the figure, the chord top plate 2 is provided with a notch 21 along its length direction, and one of the node plates 1 is arranged through the notch 21. The bottom surface of the chord top plate 2 is provided with a set of first stiff plates 22 along its length direction. The upper surface of the chord bottom plate 3 is provided with a second stiff plate 31 along its length direction. The inner side surface of the node plate 1 is provided with a third stiff plate 11.

[0030] As shown in the figure, Figure 3 and Figure 4 As shown in the figure, a plurality of transverse partitions 6 are arranged in the chord box. The transverse partitions 6 are provided with U-shaped clamping grooves 61 around the periphery, and the U-shaped clamping grooves 61 are clamped into the first stiff plates 22, the second stiff plates 31 and the third stiff plates 11 respectively.

[0031] As shown in the figure, Figure 4 As shown in the figure, the web plate 5 includes a reference plate 51, a set of first inclined plates 52 and second inclined plates 53. The reference plate 51 is vertically arranged between the node plates 1, and the bottom surface thereof is welded to the chord top plate 2. The first inclined plates 52 and the second inclined plates 53 are arranged obliquely between the node plates 1, and a plurality of bolt holes are arranged on the first inclined plates 52 and the second inclined plates 53.

[0032] As shown in the figure, Figure 5 As shown in the figure, the support bottom plate 4 includes a bottom plate 41, a pad plate 42 and a reinforcing assembly. The bottom plate 41 is arranged at the bottom of the node plate 1. The pad plate 42 is arranged on the bottom surface of the bottom plate 41. The reinforcing assembly is arranged between the bottom plate 41 and the chord bottom plate 3.

[0033] As shown in the figure, Figure 6 As shown in the figure, the reinforcing assembly includes a plurality of cross rib plates 43 and partitions 44. The partitions 44 are symmetrically arranged relative to the cross rib plates 43. The two sides of the cross rib plates 43 and the partitions 44 are welded to the node plates 1. The pad plate 42 and the bottom plate 41 are provided with bolt holes.

[0034] In addition, as shown in the figure, Figure 1 and 7 As shown in the figure, a support outer stiff plate 7 and a corbel 8 are further included. The corbel 8 includes an end plate 81 and a vertical plate 82. The bottom of the vertical plate 82 is arranged on the end plate 81, and the top end of the vertical plate 82 is provided with a clamping groove clamped into the first stiff plate 22. The end plate 81 is welded to the outer side surface of the node plate 1. The support outer stiff plate 7 includes short stiff plates arranged on both sides and welded to the outer side surfaces of the bottom plate 41 and the node plate 1 respectively, and a long stiff plate arranged in the middle. The top end of the long stiff plate is provided with a clamping groove and clamped into the first stiff plate 22. The bottom surface and the side surface of the long stiff plate are welded to the outer side surfaces of the bottom plate 41 and the node plate 1 respectively.

[0035] As shown in the figure, Figure 1 As shown in the figure, a plurality of bolt holes are arranged on both sides of the chord box. The two sides of the chord box are connected to the main truss or the lower truss.

[0036] In the embodiment, the double-wing butterfly-shaped steel truss support assembly process is as follows: one of the joint plates 1 is inserted into the slot 21 in the chord top plate 2 by inverted installation, the transverse partition plate 6 inside the chord box is installed, the U-shaped slot 61 thereon is inserted into the first stiff plate 22 and the third stiff plate 11 respectively, then the third stiff plate 11 on the other joint plate 1 is inserted into the U-shaped slot 61 for positioning and installation. Then each positioning joint is welded, after completion, the second stiff plate 31 on the chord bottom plate 3 is inserted into the U-shaped slot 61 for positioning and installation, then the support bottom plate 4, the support outer side stiff plate 7 and the corbel 8 are sequentially installed, finally the reference plate 51 in the web plate connecting plate 5 is installed in place, the first inclined plate 51 and the second inclined plate 52 are welded on the joint plate 1 with the reference plate 51 as a reference, the structure is simple, the deformation amount after assembly is small, the structural strength is high, and the technical problems proposed in the background art are effectively solved.

[0037] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, several improvements can be made without departing from the principles of the present application, and these improvements should also be considered as the protection scope of the present application.

Claims

1. A double web butterfly steel truss beam support characterized by, It comprises a group of node plates (1), chord top plate (2), chord bottom plate (3) and support bottom plate (4); One of the node plates (1) is inserted into the chord top plate (2), and the other node plate (1) is welded with the side of the chord top plate (2), the chord bottom plate (3) is arranged between the node plates (1), the node plate (1), the chord top plate (2) and the chord bottom plate (3) are combined to form a chord box, the support bottom plate (4) is arranged at the lower part of the chord bottom plate (3), and the upper part of the node plate (1) is provided with a web connecting plate (5).

2. A double web butterfly steel truss beam support according to claim 1, characterized in that, The chord top plate (2) is provided with a notch (21) along the length direction thereof, one of the node plates (1) is arranged through the notch (21), the bottom surface of the chord top plate (2) is provided with a group of first stiff plates (22) in parallel along the length direction thereof, the upper surface of the chord bottom plate (3) is provided with a second stiff plate (31) along the length direction thereof, and the inner side surface of the node plate (1) is provided with a third stiff plate (11).

3. A double web butterfly steel truss beam support according to claim 2, characterized in that, A plurality of transverse partitions (6) are arranged in the chord box, the transverse partitions (6) are provided with U-shaped clamping grooves (61) around the same, and the U-shaped clamping grooves (61) are respectively clamped into the first stiff plates (22), the second stiff plate (31) and the third stiff plate (11).

4. The double web butterfly steel truss beam support according to claim 1, characterized in that, The web connecting plate (5) comprises a reference plate (51), a group of first inclined plates (52) and second inclined plates (53), the reference plate (51) is vertically arranged between the node plates (1), the bottom surface thereof is welded with the chord top plate (2), the first inclined plates (52) and the second inclined plates (53) are arranged between the node plates (1) in an inclined manner, and a plurality of bolt holes are arranged on the first inclined plates (52) and the second inclined plates (53).

5. The double web butterfly steel truss beam support according to claim 1, wherein, The support bottom plate (4) comprises a bottom plate (41), a pad plate (42) and a reinforcing assembly, the bottom plate (41) is arranged at the bottom of the node plate (1), the pad plate (42) is arranged at the bottom surface of the bottom plate (41), and the reinforcing assembly is arranged between the bottom plate (41) and the chord bottom plate (3).

6. A double web butterfly steel truss beam support according to claim 5, characterized in that, The reinforcing assembly comprises a plurality of cross rib plates (43) and partitions (44), the partitions (44) are symmetrically arranged relative to the cross rib plates (43), and the two sides of the cross rib plates (43) and the partitions (44) are welded with the node plates (1); and the pad plate (42) and the bottom plate (41) are provided with bolt holes.

7. A double web butterfly steel truss beam support according to claim 6, characterized in that, It also comprises a support outside stiff plate (7) and a corbel (8), the corbel (8) comprises an end plate (81) and a vertical plate (82), the bottom of the vertical plate (82) is arranged on the end plate (81), the top end of the vertical plate (82) is provided with a clamping groove, the clamping groove is clamped into the first stiff plate (22), and the end plate (81) is welded with the outer side surface of the node plate (1).

8. A double web butterfly steel truss beam support according to claim 7, characterized in that, The support outside stiff plate (7) comprises short stiff plates arranged on both sides and welded with the bottom plate (41) and the outer side surface of the node plate (1) respectively, and a long stiff plate arranged in the middle, the top end of the long stiff plate is provided with a clamping groove and clamped into the first stiff plate (22), and the bottom surface and the side surface of the long stiff plate are welded with the bottom plate (41) and the outer side surface of the node plate (1) respectively.

9. The double web butterfly steel truss beam support according to claim 1, wherein, A plurality of bolt holes are arranged on both sides of the chord box.

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