Bolt type arch rib net rack connecting structure

Abstract

The utility model discloses a bolt type arch rib net rack connecting structure, which relates to the technical field of bridge construction and comprises a net rack connecting plate, upper lug plates and lower lug plates, the net rack connecting plate is fixedly mounted at the upper end of a net rack, the upper lug plates are fixedly mounted on arch ribs, the two groups of lower lug plates are respectively positioned on two sides of the upper lug plates, and the lower lug plates are fixedly mounted on the upper end of the net rack. The two groups of lower lug plates are fixedly connected with the upper lug plate through pin shafts, the lower parts of the two groups of lower lug plates are fixedly connected with the net rack connecting plate through a plurality of groups of high-strength bolts, and the net rack connecting plate is positioned between the two groups of lower lug plates. And on-site connection is achieved through the pin shafts, on-site welding is not needed, construction is convenient, and efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge building technical field, concretely relates to a bolt type arch rib net rack connecting structure. BACKGROUND

[0002] The rapid development of economic society puts forward higher requirements for the landscape of city bridges. At present, more and more city bridges set up net racks and canopy structures for improving landscape on the basis of meeting basic traffic functions. Large-span net racks are widely used in city landscape arch bridges in recent years due to their good integrity, strong plasticity, light weight and high strength. The net rack is usually connected with the main structure (arch rib) of the bridge because of its small overall rigidity. The connecting mode between the net rack and the arch rib directly relates to the structural safety of the arch rib and the net rack, and simultaneously affects the final landscape of the bridge. Therefore, the connecting mode between the net rack and the arch rib is extremely important.

[0003] At present, the commonly used method for connecting the net rack and the arch rib is on-site welding, which directly welds the net rack on the arch rib. The traditional arch rib-net rack connecting mode has the following shortcomings:

[0004] 1. The on-site welding construction is complex and long in period, and the welding quality is difficult to guarantee.

[0005] 2. For the case that the arch rib or the net rack has a special-shaped section, the on-site welding is difficult.

[0006] 3. The net rack is directly welded on the arch rib, and the two are fixed. The temperature and wind load deformation of the net rack will be directly applied to the arch rib, which greatly affects the structure of the arch rib. INVENTION CONTENTS

[0007] The utility model aims at providing a bolt type arch rib-net rack connecting structure, which solves the technical problem that the traditional connecting mode between the net rack and the arch rib adopts the on-site welding mode, the on-site welding construction is complex and long in period, and the welding quality is difficult to guarantee.

[0008] The purpose of the utility model can be achieved by the following technical scheme:

[0009] A bolt type arch rib-net rack connecting structure, comprising an arch rib and a net rack, wherein the upper end of the net rack is fixedly installed with a net rack connecting plate, the arch rib is fixedly installed with an upper lug plate, the two sides of the upper lug plate are provided with lower lug plates, two groups of lower lug plates and the upper lug plate are fixedly connected through a pin shaft, the lower parts of the two groups of lower lug plates and the net rack connecting plate are fixedly connected through a plurality of high-strength bolts, and the net rack connecting plate is located between the two groups of lower lug plates.

[0010] As a further embodiment of this utility model: multiple upper ear plate stiffening ribs are fixedly provided on both sides of the upper ear plate, one end of the upper ear plate stiffening rib is fixedly connected to the arch rib, and the upper ear plate stiffening rib is simultaneously connected to the upper ear plate and the arch rib by a weld.

[0011] As a further embodiment of this utility model: multiple stiffening ribs are fixedly connected to both sides of the space frame connecting plate, the lower end of the stiffening ribs is fixedly connected to the space frame, and the stiffening ribs are simultaneously connected to the space frame connecting plate and the space frame through welds.

[0012] As a further embodiment of this utility model, a rubber pad is provided between the lower ear plate and the upper ear plate.

[0013] As a further embodiment of this utility model: a gap is reserved between the rubber pad and the upper ear plate, and a waterproof seal is provided at the entrance of the gap.

[0014] As a further embodiment of this utility model, gaskets are provided between the two sets of lower ear plates and the mesh frame connecting plate.

[0015] The beneficial effects of this utility model are:

[0016] (1) The pin-type arch rib space frame connection structure of this utility model is prefabricated in the factory for both the arch rib end and the space frame end structure. It is connected on site by pin shafts, eliminating the need for on-site welding. It is convenient and efficient to construct.

[0017] (2) The connection structure of this utility model has wide adaptability and is not limited by the cross-sectional form of the arch rib or the space frame. It can be flexibly applied to the connection design of arch rib space frames with rectangular, circular, and irregular cross-sectional types.

[0018] (3) The arch rib and the space frame of this utility model are connected by a pin, and the two can move relative to each other without transmitting torque, which can effectively reduce the influence of the space frame on the arch rib structure. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a utility model Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0022] Figure 3 This is a utility model Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a utility model Figure 2 A magnified structural diagram at point B in the middle.

[0024] Figure: 1, arch rib; 2, net rack, 3, upper lug plate; 4, upper lug plate stiffening rib; 5, lower lug plate; 6, net rack connecting plate; 7, net rack stiffening rib; 8, gasket; 9, high-strength bolt; 10, pin shaft; 11, rubber pad; 12, waterproof seal; 13, gap. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-4 The utility model discloses a bolt type arch rib net rack connecting structure, including arch rib 1 and net rack 2, the upper end fixed mounting of net rack 2 has net rack connecting plate 6, the upper fixed mounting of arch rib 1 has upper lug plate 3, the both sides of upper lug plate 3 are all provided with lower lug plate 5, and two groups of lower lug plate 5 are fixedly connected through pin shaft 10 between the both sides of upper lug plate 3, and the lower part between two groups of lower lug plate 5 and net rack connecting plate 6 is fixedly connected through multiple groups of high-strength bolt 9, and net rack connecting plate 6 is located between two groups of lower lug plate 5.

[0027] The both sides of upper lug plate 3 are all fixedly provided with a plurality of upper lug plate stiffening ribs 4, one end of upper lug plate stiffening rib 4 is fixedly connected on arch rib 1, and upper lug plate stiffening rib 4 is connected with upper lug plate 3 and arch rib 1 simultaneously through welding seam, and the connection strength between upper lug plate 3 and arch rib 1 is improved by setting upper lug plate stiffening rib 4, so as to improve the overall strength of the whole connecting structure.

[0028] Further, the size of upper lug plate stiffening rib 4 changes according to the size of upper lug plate 3, when the length of upper lug plate 3 is longer at the position where upper lug plate stiffening rib 4 is connected on upper lug plate 3, then the size of upper lug plate stiffening rib 4 is increased correspondingly, to ensure the overall strengthening of upper lug plate 3.

[0029] The both sides of net rack connecting plate 6 are all fixedly connected with a plurality of net rack stiffening ribs 7, the lower end of net rack stiffening rib 7 is fixedly connected on net rack 2, and net rack stiffening rib 7 is connected with net rack connecting plate 6 and net rack 2 simultaneously through welding seam.

[0030] Specifically, the connection strength between net rack connecting plate 6 and net rack 2 is improved by setting net rack stiffening rib 7, so as to improve the overall strength of the whole connecting structure.

[0031] The rubber pad 11 is arranged between the upper ear plate 3 and the lower ear plate 5, and the rubber pad 11 plays a protective supporting role on the connection between the upper ear plate 3 and the lower ear plate 5, on the one hand, improves the protection of the ear plate, and on the other hand, improves the locking degree of the pin shaft 10 installation, thereby improving the stability of the connection between the upper ear plate 3 and the lower ear plate 5.

[0032] The gap 13 is reserved between the rubber pad 11 and the upper ear plate 3, the waterproof seal 12 is arranged at the entrance of the gap 13, the gap 13 can effectively prevent the deformation caused by thermal expansion and cold contraction, and enough space is reserved for thermal expansion and cold contraction, and the waterproof seal 12 is arranged to effectively prevent rainwater from entering the connecting gap and corroding the rubber pad 11.

[0033] The gasket 8 is arranged between the lower ear plate 5 and the net rack connecting plate 6, the gasket 8 improves the connection strength between the lower ear plate 5 and the net rack connecting plate 6, the connection length of the high-strength bolt 9 is increased by arranging the gasket 8, and the connection stability between the lower ear plate 5 and the net rack connecting plate 6 is further improved.

[0034] The working principle of the utility model is: the upper ear plate 3 and the upper ear plate stiffening rib 4 form an arch rib end connecting piece, which can be prefabricated with the segment of the arch rib 1 in the factory. The net rack connecting plate 6, the net rack stiffening rib 7 and the net rack segment are prefabricated in the factory, the lower ear plate 5 is connected with the net rack connecting plate 6 through the high-strength bolt 9, and the work can also be carried out in the factory. The lower ear plate 5, the net rack connecting plate 6, the net rack stiffening rib 7, the gasket 8 and the high-strength bolt 9 jointly form a net rack end connecting piece. On site, only the pin shaft 10 is used to connect the arch rib end connecting piece and the net rack end connecting piece, as shown in the attached Figure 1 and Figure 2 The arch rib 1 and the net rack 2 can move relatively, do not transmit torque, and can effectively reduce the influence of the net rack 2 on the structure of the arch rib 1. And the arch rib net rack connecting structure in the scheme can be adjusted by the shape of the upper ear plate 3, the net rack stiffening rib 7 and other plate pieces, and is suitable for different cross-sectional forms of the arch rib and the net rack.

[0035] The above describes one embodiment of the utility model in detail, but the content described can only be the preferred embodiment of the utility model, and cannot be considered as limiting the implementation range of the utility model. Any equivalent change and improvement within the scope of the utility model application shall still belong to the patent coverage range of the utility model.

Claims

1. A bolted arch rib truss connection configuration, characterized by, The utility model relates to a kind of steel structure, including net frame connecting plate (6), upper ear plate (3) and lower ear plate (5), the net frame connecting plate (6) is fixedly installed on the upper end of net frame (2), the upper ear plate (3) is fixedly installed on arch rib (1), the lower ear plate (5) is provided with two groups and is located in the two sides of upper ear plate (3), two groups of lower ear plate (5) are fixedly connected by pin shaft (10) between upper ear plate (3), and the lower part of two groups of lower ear plate (5) is fixedly connected by multiple high-strength bolts (9) between net frame connecting plate (6), and net frame connecting plate (6) is located between two groups of lower ear plate (5).

2. The bolted arch rib truss connection of claim 1, wherein, The upper ear plate (3) is provided with a plurality of upper ear plate stiffening ribs (4) on both sides, and the upper ear plate stiffening ribs (4) are connected to the upper ear plate (3) and the arch rib (1) by welding.

3. The bolted arch rib truss connection of claim 1, wherein, The net frame connecting plate (6) is provided with a plurality of net frame stiffening ribs (7) on both sides, and the net frame stiffening ribs (7) are connected to the net frame connecting plate (6) and the net frame (2) by welding.

4. The bolted arch rib truss connection of claim 1, wherein, The lower ear plate (5) is provided with a rubber pad (11) between the upper ear plate (3).

5. The bolted arch rib truss connection of claim 4, wherein, The rubber pad (11) is provided with a gap (13) between the upper ear plate (3), and a waterproof seal (12) is arranged at the entrance of the gap (13).

6. The bolted arch rib truss connection of claim 1, wherein, The lower ear plate (5) is provided with a gasket (8) between the net frame connecting plate (6).

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