Cable-stayed buckling point structure of arch rib

Abstract

The utility model discloses an arch rib cable-stayed buckling point structure which comprises a buckling point cross beam, buckling cables installed above the buckling point cross beam and an arch rib section installed below the buckling point cross beam, the two buckling cables are detachably connected to the two ends of the buckling point cross beam respectively, and connecting through holes corresponding to the buckling cables are formed in the positions close to the two ends of the buckling point cross beam. The connecting through holes vertically penetrate through the buckling point cross beam from top to bottom, and the two buckling cables penetrate through the corresponding connecting through holes and then are fixedly connected with the buckling point cross beam. The minimum distance between the two connecting through holes is larger than the maximum width of each arch rib section. By improving the connecting mode and the connecting structure of the buckling point cross beam and the buckling cable, the connecting structure between the buckling cable and the buckling point cross beam is simpler, the stress condition of the buckling point cross beam is better, and the strength and the bearing capacity of the buckling point cross beam can be effectively improved when the buckling point cross beam bears the inclined pulling force of the buckling cable; according to the utility model, the hoisting closure work of the arch rib sections cannot be hindered, so that the construction efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering construction, in particular to an arch rib oblique tension buckle point structure. Background Art

[0002] Arch ribs are commonly used structures in large-span bridge projects. Arch ribs are composed of multiple arch rib segments. Before hoisting and closure, arch ribs need to be fixed with cable wire bundles to ensure the construction line shape and safety. The buckle point beam, as a connecting component set between the cable wire bundle and the arch rib segment, is a key link in the construction of the cable-stayed buckle, affecting the force of the entire cable-stayed buckle point structure.

[0003] The Chinese utility model patent with the announcement number CN208965385U discloses an arch rib buckle point device based on the arch bridge inclined buckle hanging system, and its technical scheme includes a second pin shaft, a plurality of buckle cable connection pin ears and a first pin shaft, the arch rib is connected to the shoulder pole beam through the second pin shaft, and each buckle cable connection pin ear is fixed on the shoulder pole beam through the first pin shaft; one end of each buckle cable connection pin ear is provided with a connection ear pin hole matching the first pin shaft, and the other end of the buckle cable connection pin ear is provided with a shell, and a buckle cable hole is provided on the shell, and the line where the buckle cable hole is located is perpendicular to the line where the connection ear pin hole is located. When the arch rib buckle point device of the utility model is in use, the arch rib is connected to the shoulder pole beam through the second pin shaft, and each buckle cable connection pin ear is connected to the shoulder pole beam through the first pin shaft, and the front buckle cable is directly inserted into the shell on the buckle cable connection pin ear. The shoulder-pole beam in this utility model patent is a buckle-point beam. When the shoulder-pole beam is connected with the buckle cable, a hole needs to be opened at the web position of the shoulder-pole beam and a pin is used to connect the buckle cable. The structure is relatively complicated, and because the hole direction passes through the shoulder-pole beam horizontally, it will not only affect the strength and bearing capacity of the shoulder-pole beam, but also the holes of this utility model are located on both sides of the connecting beam of the arch rib, which will subsequently cause the shoulder-pole beam to fail to meet the requirements of the arch rib segment hoisting and buckling, that is, the subsequent arch rib segments of the same width cannot pass between the inclined buckle cables, which will increase the difficulty of construction. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an arch rib oblique fastening point structure which has a simple structure, a high bearing capacity and can be fastened during the hoisting of arch rib segments.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an arch rib oblique-stayed buckle point structure, including a buckle point beam, a buckle cable installed above the buckle point beam and an arch rib segment installed below the buckle point beam, two buckle cables are detachably connected to the two ends of the buckle point beam, and connecting through holes corresponding to the buckle cables are provided near the two end positions of the buckle point beam, and the connecting through holes vertically penetrate the buckle point beam from top to bottom, and the two buckle cables are fixedly connected to the buckle point beam after passing through the corresponding connecting through holes; the minimum spacing between the two connecting through holes is greater than the maximum width of the arch rib segment.

[0006] As an improvement of the above scheme: the arch rib segment is connected to the bottom of the buckle point beam through a buckle connection assembly; the number of the buckle connection assemblies is two groups, and the two groups of buckle connection assemblies are respectively arranged near the two ends of the buckle point beam and located between the two connecting through holes; the buckle connection assembly includes two buckle connection plates fixedly connected to the bottom of the buckle point beam, and the two buckle connection plates in the same group of buckle connection assemblies are spaced apart in the length direction of the buckle point beam, and pin holes are provided on the buckle connection plates, and the arch rib segment is connected to the buckle connection assembly through a pin shaft matching the pin hole.

[0007] As an improvement of the above scheme: it also includes a pin hole stiffening plate and a buckle stiffening plate; the pin hole stiffening plate is provided with a through hole for the pin shaft to pass through, the pin hole stiffening plate is abutted against the side of the buckle connecting plate and the through hole is concentrically arranged with the pin hole; the buckle stiffening plate is a triangular rib plate, the buckle stiffening plate is vertically arranged between the buckle point beam and the buckle connecting plate, and the two right-angled sides of the buckle stiffening plate are respectively fixedly connected to the buckle point beam and the buckle connecting plate.

[0008] As an improvement of the above scheme: it also includes a reinforcing pad abutting against the bottom of the buckle point beam, the reinforcing pad corresponds to the connecting through hole one by one, and a through hole concentric with the connecting through hole is provided on the reinforcing pad; the buckle cable passes through the corresponding connecting through hole and the reinforcing pad in sequence and is fixed to the buckle point beam by an anchoring clamp.

[0009] As an improvement of the above scheme: the buckle point beam is a rectangular frame beam composed of a top plate, a bottom plate and a side web plate, and a plurality of internal stiffening plates are fixed inside the buckle point beam. The internal stiffening plates are arranged at intervals along the length direction of the buckle point beam and are arranged on both sides close to the connecting through hole.

[0010] The beneficial effects of the utility model are as follows: the utility model improves the connection method and connection structure of the buckle point beam and the buckle cable, and a connecting through hole that penetrates the buckle point beam from top to bottom is arranged on the buckle point beam. The buckle cable passes through the connecting through hole from top to bottom and then is fixed. The connection structure between the buckle cable and the buckle point beam is simpler, and when the buckle cable is subsequently used for oblique tensioning, the force direction of the buckle point beam is more consistent with the oblique tension direction of the buckle cable, the force condition of the buckle point beam is better, and the strength and bearing capacity of the buckle point beam when subjected to the oblique tension of the buckle cable can be effectively improved; the utility model limits the setting position of the connecting through hole, so that the distance between the two buckle cables meets the subsequent hoisting and buckling requirements of other arch rib segments, and will not hinder the hoisting and closure work of the arch rib segments, thereby effectively improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a front view of the buckle point crossbeam in the utility model;

[0013] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0014] Figure 4 for Figure 2 Cross-sectional view at BB in the middle.

[0015] Markings in the figure are: 100- buckle point beam, 110- connecting through hole, 120- top plate, 130- bottom plate, 140- side web plate, 150- inner stiffening plate, 200- buckle cable, 300- arch rib segment, 410- buckle connecting plate, 420- pin hole stiffening plate, 430- buckle stiffening plate, 440- reinforcement pad. DETAILED DESCRIPTION

[0016] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0017] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", and "inside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0018] like Figure 1As shown, the arch rib oblique-stayed buckle point structure disclosed in the utility model includes a buckle point beam 100, a buckle cable 200 and an arch rib segment 300; two buckle cables 200 are respectively fixedly connected to the two ends of the buckle point beam 100, the buckle cable 200 is connected to the buckle point beam 100 from the top of the buckle point beam 100, and the arch rib segment 300 is fixedly connected to the bottom of the buckle point beam 100.

[0019] In order to simplify the structure of the buckle point beam 100 and improve the stress of the buckle point beam 100, the utility model improves the connection method and connection structure between the buckle cable 200 and the buckle point beam 100, such as Figures 1 to 3 As shown, a connecting through hole 110 is provided on the buckle point beam 100, and the connecting through hole 110 and the buckle cable 200 are in a one-to-one correspondence. The two connecting through holes 110 are respectively provided at both ends of the buckle point beam 100, and the connecting through holes 110 extend from top to bottom through the buckle point beam 100. The two buckle cables 200 pass through the corresponding connecting through holes 110 and are fixedly connected to the buckle point beam 100 through anchoring clamps. By setting the connecting through hole 110 and cooperating with the buckle cable 200 to penetrate vertically and perpendicularly to the buckle point beam 100, the buckle cable 200 is installed. Compared with the prior art method of installing the buckle cable by opening a hole horizontally on the buckle point beam, when the buckle cable 200 in the utility model passes through the buckle point beam 100 to hoist the arch rib segment 300, the opening direction of the connecting through hole 110 is consistent with the tension of the buckle cable 200 on the buckle point beam 100, and the connecting through hole 110 does not horizontally damage the structure of the buckle point beam 100, and the strength and bearing capacity of the buckle point beam 100 are better. At the same time, the connection structure required for the buckle cable 200 in the utility model is simpler and easy to disassemble and assemble, and both the raw material cost and the processing cost can be effectively saved.

[0020] On the basis of setting the connecting through hole 110, the utility model limits the setting position of the connecting through hole 110, and sets the two connecting through holes 110 close to the two ends of the buckle beam 100 respectively, while making the minimum spacing between the two connecting through holes 110 greater than the maximum width of the arch rib segment 300; under normal circumstances, the minimum spacing between the two connecting through holes 110 is preferably greater than the maximum width of the arch rib segment 300 by 600mm. When other arch rib segments are subsequently hoisted, other arch rib segments can be passed between the two buckle cables 200, and the hoisting path of the arch rib segments is shorter, and hoisting is more convenient, which can effectively improve the efficiency of construction.

[0021] Furthermore, in order to improve the strength of the connection between the buckle cable 200 and the buckle point beam 100, as Figure 1 and Figure 2As shown, in the utility model, a reinforcing pad 440 is added to the bottom of the buckle point beam 100, and the reinforcing pad 440 is in a one-to-one correspondence with the connecting through hole 110. A through hole concentric with the connecting through hole 110 is provided on the reinforcing pad 440, and the buckle cable 200 passes through the corresponding connecting through hole 110 and the reinforcing pad 440 in sequence and is fixed to the buckle point beam 100 by an anchoring clamp.

[0022] Specifically, Figure 2 and Figure 3 As shown, the buckle beam 100 used in the present invention is welded and connected by a top plate 120, a bottom plate 130 and two side webs 140 to form a rectangular frame beam; the connecting through hole 110 runs through the top plate 120 and the bottom plate 130. In order to improve the overall strength of the buckle beam 100, an internal stiffening plate 150 can be added inside the buckle beam 100, and the number of the internal stiffening plates 150 is set according to the actual reinforcement requirements. In the present invention, a plurality of internal stiffening plates 150 arranged at intervals are arranged inside the buckle beam 100 along the length direction of the buckle beam 100, and the internal stiffening plates 150 are also arranged at positions close to both sides of the connecting through hole 110. Generally, the distance between the connecting through hole 110 and the end of the buckle beam 100 is greater than 50 mm, so the internal stiffening plates 150 are arranged within 50 mm on both sides of the connecting through hole 110.

[0023] Specifically, in the present invention, the arch rib segment 300 is installed by means of a hook-and-hook connection assembly. Figures 1 to 4 As shown, two groups of buckle connection components are used, and one group of buckle connection components is respectively arranged at both ends of the buckle point beam 100, and the connecting through hole 100 is located on the outside of the corresponding buckle connection component. Each group of buckle connection components includes two buckle connection plates 410, and the two buckle connection plates 410 in the same group of buckle connection components are arranged at intervals in the length direction of the buckle point beam 100 and are welded and fixed on the buckle point beam 100, and concentrically opposite pin holes are arranged on the two buckle connection plates 410, and the arch rib segment 300 is connected to the buckle connection component by the pin shaft passing through the pin holes on the two buckle connection plates 410. In order to improve the strength of the buckle connection component, the utility model also provides a pin hole stiffening plate 420 and a buckle stiffening plate 430; the pin hole stiffening plate 420 is provided with a through hole for the pin shaft to pass through, and the pin hole stiffening plate 420 is close to the side of the buckle connection plate 410, and the through hole is arranged concentrically with the pin hole. The buckle stiffening plate 430 is a triangular rib plate, which is vertically arranged between the buckle point beam 100 and the buckle connecting plate 410, and the two right-angled sides of the buckle stiffening plate 430 are fixedly connected to the buckle point beam 100 and the buckle connecting plate 410 respectively by welding.

Claims

1. An arch rib obliquely-stayed buckle point structure, comprising a buckle point cross beam (100), a buckle cable (200) installed above the buckle point cross beam (100), and an arch rib segment (300) installed below the buckle point cross beam (100), wherein two buckle cables (200) are detachably connected to both ends of the buckle point cross beam (100), and characterized in that: Connecting through holes (110) corresponding to the buckling cables (200) are provided near the two end positions of the buckling point cross beam (100), and the connecting through holes (110) vertically penetrate the buckling point cross beam (100) from top to bottom. The two buckling cables (200) pass through the corresponding connecting through holes (110) and are fixedly connected to the buckling point cross beam (100). The minimum spacing between the two connecting through holes (110) is greater than the maximum width of the arch rib segment (300).

2. The arch rib oblique buckle point structure according to claim 1, characterized in that: The arch rib segment (300) is connected to the bottom of the buckle point beam (100) through a buckle connection assembly; the number of the buckle connection assembly is two groups, and the two groups of buckle connection assemblies are respectively arranged near the two ends of the buckle point beam (100) and located between the two connecting through holes (110); the buckle connection assembly includes two buckle connection plates (410) fixedly connected to the bottom of the buckle point beam (100), and the two buckle connection plates (410) in the same group of buckle connection assemblies are arranged at intervals in the length direction of the buckle point beam (100), and the buckle connection plates (410) are provided with pin holes, and the arch rib segment (300) is connected to the buckle connection assembly through a pin shaft matching the pin hole.

3. The arch rib oblique buckle point structure according to claim 2, characterized in that: It also includes a pin hole stiffening plate (420) and a buckle stiffening plate (430); the pin hole stiffening plate (420) is provided with a through hole for the pin shaft to pass through, the pin hole stiffening plate (420) is close to the side of the buckle connecting plate (410), and the through hole is concentrically arranged with the pin hole; the buckle stiffening plate (430) is a triangular rib plate, the buckle stiffening plate (430) is vertically arranged between the buckle point crossbeam (100) and the buckle connecting plate (410), and the two right-angled sides of the buckle stiffening plate (430) are respectively fixedly connected to the buckle point crossbeam (100) and the buckle connecting plate (410).

4. The arch rib oblique buckle point structure according to claim 1, characterized in that: It also includes a reinforcing pad (440) abutting against the bottom of the buckle point crossbeam (100), wherein the reinforcing pad (440) corresponds to the connecting through hole (110) one by one, and a through hole concentric with the connecting through hole (110) is provided on the reinforcing pad (440); the buckle cable (200) passes through the corresponding connecting through hole (110) and the reinforcing pad (440) in sequence and is then fixed to the buckle point crossbeam (100) by an anchoring clamp.

5. The arch rib oblique buckle point structure according to claim 1, characterized in that: The buckle point cross beam (100) is a rectangular frame beam composed of a top plate (120), a bottom plate (130) and a side web plate (140). A plurality of inner stiffening plates (150) are fixed inside the buckle point cross beam (100). The inner stiffening plates (150) are arranged at intervals along the length direction of the buckle point cross beam (100) and are arranged near both sides of the connecting through hole (110).

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