Corrugated steel-concrete combined web structure with mounting and positioning functions

Abstract

The utility model discloses a corrugated steel-concrete combined web structure with mounting and positioning functions, which belongs to the technical field of bridge construction and structurally comprises a plurality of corrugated steel webs and lining concrete arranged on the inner side surfaces of the corrugated steel webs. At least one pair of first displacement connecting piece and second displacement connecting piece which are connected in a matched mode is vertically arranged at the side end seam between every two adjacent corrugated steel webs. The first displacement connecting piece and the second displacement connecting piece are located and fixedly connected through the corresponding threaded sleeves, the corresponding magnetic attraction blocks and the corresponding L-shaped displacement adjusting plates correspondingly, the structural connection stability is enhanced, disassembly is convenient, and the construction efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a corrugated steel-concrete combined web structure with an installation and positioning function. Background Art

[0002] In recent years, composite bridges with corrugated steel webs have become one of the key bridge types promoted in large-span bridges due to their advantages such as light structure, beautiful appearance, reasonable force, good seismic performance, low engineering cost, excellent durability, and green environmental protection. However, in the cantilever construction process of composite bridges with corrugated steel webs with large spans, mechanical equipment is generally used to hoist the corrugated steel webs, and high-altitude installation operations are carried out on site, which has technical difficulties such as long time-consuming precise positioning and high operation risks. At the same time, for composite bridges with corrugated steel webs with large spans, the pier top beam height is relatively high. In order to resist the buckling problem that the corrugated steel webs are prone to, concrete is generally poured on one side of the corrugated steel webs to form a composite web of corrugated steel plate-lined concrete to improve the buckling stability of the webs; however, the lining concrete is affected by the constraints of the steel webs, and is prone to durability problems such as shrinkage cracks, and the shear mechanism of the composite webs becomes complicated due to concrete cracking.

[0003] In order to solve the technical problems such as the difficulty in installation and positioning of the web of large-span corrugated steel web composite bridges and the easy cracking of the lining concrete, the designer, based on many years of rich practical experience and professional knowledge in the design and construction of corrugated steel web composite bridges, and in conjunction with the application of theory, actively carried out research and innovation, and invented a corrugated steel-concrete composite web structure with installation and positioning function. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide a corrugated steel-concrete composite web structure with an installation and positioning function.

[0005] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0006] On the one hand, the utility model provides a corrugated steel-concrete composite web structure with installation and positioning function, comprising a plurality of corrugated steel webs and lining concrete, wherein the lining concrete is arranged on the inner side of the corrugated steel webs, and at least one pair of first and second positioning connectors that are matched and connected are arranged vertically at the side end joints between adjacent corrugated steel webs;

[0007] The first positioning connector includes a first threaded sleeve, a first L-shaped positioning adjustment plate and a first magnetic block, the first threaded sleeve is fixedly connected to the inner side surface of the side end of the corrugated steel web, the first magnetic block is arranged in the first threaded sleeve and magnetically connected to the inner side surface of the side end of the corrugated steel web, the side protrusion of the first L-shaped positioning adjustment plate is inserted into the first threaded sleeve and magnetically connected to the first magnetic block, and the extension portion of the first L-shaped positioning adjustment plate is extended in the transverse direction and placed at the joint;

[0008] The second positioning connecting piece includes a second threaded sleeve, a second L-shaped positioning adjustment plate and a second magnetic block. The second threaded sleeve is fixedly connected to the inner side surface of the side end of the corrugated steel web. The second magnetic block is arranged in the second threaded sleeve and is magnetically connected to the inner side surface of the side end of the corrugated steel web. The side protrusion of the second L-shaped positioning adjustment plate is inserted into the second threaded sleeve and is magnetically connected to the second magnetic block. The extending portion of the second L-shaped positioning adjustment plate is extended laterally and placed at the joint and is overlapped and bolted with the extending portion of the first L-shaped positioning adjustment plate.

[0009] Furthermore, a third magnetic block is disposed between the extending portion of the first L-shaped movement adjustment plate and the extending portion of the second L-shaped movement adjustment plate.

[0010] Furthermore, a pair of first and second positioning connectors that are matched and connected are respectively provided at the upper and lower parts of the side end joints between adjacent corrugated steel webs.

[0011] Furthermore, the outer side surface of the extending portion of the first L-shaped movement adjustment plate is magnetically connected to the inner side surface of the extending portion of the second L-shaped movement adjustment plate through the third magnetic block.

[0012] Furthermore, the sum of the height of the side protrusion of the first L-shaped movement adjustment plate, the thickness of the extension portion and the thickness of the third magnetic block is equal to the height of the side protrusion of the second L-shaped movement adjustment plate.

[0013] Furthermore, holes for passing bolts are respectively formed on the extending portion of the first L-shaped movement adjustment plate, the extending portion of the second L-shaped movement adjustment plate and the third magnetic block.

[0014] Furthermore, the "thread" limitation of the first threaded sleeve and the second threaded sleeve has no specific function, the side protrusion of the L-shaped positioning adjustment plate is not provided with a corresponding external thread, and after the threaded sleeve is connected to the L-shaped positioning adjustment plate, the connection part between the end of the threaded sleeve and the L-shaped positioning adjustment plate is welded all around.

[0015] Furthermore, two bolts for embedding into the lining concrete are fixedly arranged on the inner side of the horizontal panel of the corrugated steel web, and the bolts are respectively located on the three-point lines of the horizontal panel in the transverse direction.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1) The corrugated steel-concrete composite web structure with installation and positioning function provided by the utility model has at least one pair of first and second positioning connectors that are matched and connected to each other vertically arranged at the side end joints between adjacent corrugated steel webs; the first and second positioning connectors are respectively positioned and fixedly connected at the connection by corresponding threaded sleeves, magnetic blocks and L-shaped positioning adjustment plates, thereby enhancing the stability of the structural connection, facilitating disassembly and replacement, and achieving high construction efficiency;

[0018] 2) At the same time, two bolts for embedding the lining concrete are fixedly arranged on the inner side of the horizontal panel of the corrugated steel web, and the bolts are respectively located on the three-point lines of the horizontal panel in the transverse direction, so as to solve the problem that the lining of the corrugated steel web composite beam is easy to crack and improve the tensile yield stability;

[0019] 3) Bolt connection. Compared with other connection methods, bolts are easy to process, removable, able to withstand loads, fatigue-resistant, and have good plasticity and toughness. The construction process is simple and the installation is convenient. It is suitable for on-site installation and connection, which can better guarantee the construction progress and quality. It has the advantages of connection plasticity, good toughness, and reliable force transmission. It is also convenient to install and disassemble, can be reused many times, and has small connection deformation. Moreover, bolts can easily achieve different levels of control of precision, from ±25% pulse-type tools to ±-1% manual tightening sleeves; bolts have a large amount of standard data for product and process design, and have a long history of application; bolts make the construction process and equipment effectiveness inspection process easier; there is a gap between the rod and the hole of the bolt, the processing requirements of the through hole are low, the structure is simple, and it is easy to assemble and disassemble, and it is widely used; when disassembling in the future, you only need to unscrew the nut without removing the screw rod, which can avoid damage to the threaded holes on large connected parts;

[0020] 4) Threaded sleeves are welded on the upper and lower parts of the steel plate. The threaded sleeves have the advantages of good mechanical properties and safe and reliable connection. The threaded sleeves are easy to construct and have high efficiency. The sleeves do not require high connection technology, are easy to operate, and have stable connections and reliable quality. Because the sleeves have high strength and a large force-bearing area at the joints, they have high connection stability. Moreover, they are prefabricated and are not restricted by climate and site.

[0021] 5) The L-shaped positioning regulator and the magnetic structure can work together to greatly improve the construction speed and reduce the connection time of the corrugated steel web. The spatial position of the next stage of the corrugated steel web can be adjusted by twisting the L-shaped positioning regulator, and the magnetic structure can be used to connect with the next corrugated steel web. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural top view of a corrugated steel-concrete slab according to an embodiment of the utility model;

[0023] Figure 2 A partial diagram of a magnetic attraction structure and an L-shaped positioning regulator according to an embodiment of the utility model;

[0024] Figure 3 This is a structural front view of a corrugated steel-concrete slab according to an embodiment of the utility model;

[0025] In the figure:

[0026] 1. Corrugated steel web; 2. Lining concrete; 3. Bolt; 4. First threaded sleeve; 5. First magnetic block; 6. First L-shaped adjustment plate; 7. Second threaded sleeve; 8. Second magnetic block; 9. Second L-shaped adjustment plate; 10. Hole; 11. Bolt; 12. Third magnetic block; 13. Side protrusion; 14. Extension; 15. Gap; 16. Nut. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] Example

[0031] like Figure 1 As shown, an embodiment of the utility model provides a corrugated steel-concrete composite web structure with installation and positioning function, including a plurality of corrugated steel webs 1 and lining concrete 2, wherein the lining concrete 2 is arranged on the inner side of the corrugated steel web 1.

[0032] The corrugated steel web is made of Q345 steel, the thickness of the corrugated steel web is 16mm, the horizontal panel of the corrugated steel web is 0.43m long, the inclined panel is 0.43m long, the horizontal length of the inclined panel is 0.37m, the horizontal folding angle is 30.7°, the bending radius is 75mm, the wave height is 0.22m, and the corrugated steel webs are exactly the same. The two corrugated steel webs can play a good restraining role on the lining concrete 2, solve the problem of easy cracking of the lining concrete 2, and improve the yield stability of the overall structure.

[0033] In this embodiment, two bolts 3 for embedding the lining concrete 2 are fixedly arranged on the inner side of the horizontal panel of the corrugated steel web 1. The bolts 3 are respectively located on the three-point lines of the horizontal panel in the horizontal direction, which solves the problem of easy cracking of the lining of the corrugated steel web composite beam and improves the yield stability. The lining concrete 2 uses high-strength lightweight concrete, which can reduce the deadweight of the concrete structure without reducing the strength. The lightweight concrete can also reduce the pressure on the corrugated steel webs on both sides, which is of great help to on-site construction.

[0034] Specifically, the bolt 3 is located at 1 / 3 of the horizontal plate of the corrugated steel web. Two bolts 3 are set for one wavelength of the corrugated steel web. They are connected to the corrugated steel web by welding and are located on the side of the lining concrete 2. The bolt 3 has a diameter of 16 mm, a length of 80 mm, and is made of rivet steel ML-15. The position and number of the bolts 3 in the height direction of the corrugated steel web are determined according to the actual project. The bolt 3 can well connect the corrugated steel web and the lining concrete 2, so that the composite structure is stable under stress.

[0035] like Figure 1 and 2 As shown, at least one pair of first and second positioning connectors that are matched and connected are vertically arranged at the side end joints between adjacent corrugated steel webs 1 .

[0036] The first positioning connection member includes a first threaded sleeve 4, a first L-shaped positioning adjustment plate 6 and a first magnetic block 5. The first threaded sleeve 4 is fixedly connected to the inner side surface of the side end of the corrugated steel web 1. The first magnetic block 5 is arranged in the first threaded sleeve 4 and is magnetically connected to the inner side surface of the side end of the corrugated steel web 1. The side protrusion 13 of the first L-shaped positioning adjustment plate 6 is inserted into the first threaded sleeve 4 and is magnetically connected to the first magnetic block 5. The extending portion 14 of the first L-shaped positioning adjustment plate 6 is extended laterally and placed at the joint.

[0037] The outer diameter of the first threaded sleeve 4 is equal to 14.0 cm, the inner diameter is equal to 12.0 cm, and the length is 20.0 cm. The material used is chrome-molybdenum steel. The thickness of the first threaded sleeve 4 is 2 cm. The first threaded sleeve 4 is welded to the upper and lower parts of the side ends of the corrugated steel web. The threaded sleeve can well connect the corrugated steel web with the first magnetic block 5 and the first L-shaped positioning adjustment plate 6. The internal thread of the first threaded sleeve 4 is tightly combined with the first L-shaped positioning adjustment plate 6.

[0038] The side protrusion 13 of the first L-shaped movement adjustment plate 65 is connected to the first threaded sleeve 4, the top surface of the side protrusion 13 of the first L-shaped movement adjustment plate 6 is magnetically connected to the first magnetic block 5, the extension portion 14 of the first L-shaped movement adjustment plate 6 is magnetically connected to the third magnetic block 12, and the extension portion 14 of the first L-shaped movement adjustment plate 6 is provided with a hole 10 reserved for the bolt 11. The first L-shaped movement adjustment plate 6 is made of Q235 steel, the side protrusion 13 is 10 cm thick, the inner side of the side protrusion 13 is 16 cm long, the extension portion 14 is 5 cm thick, and the inner side of the extension portion 14 is 30 cm long. The spatial position of the next section of the corrugated steel web can be adjusted by screwing the first L-shaped movement adjustment plate 6. The "thread" limitation of the first threaded sleeve 4 and the second threaded sleeve 7 has no specific function, the side protrusion 13 of the L-shaped positioning adjustment plate is not provided with a corresponding external thread, and after the threaded sleeve is connected to the L-shaped positioning adjustment plate, the connection part between the end of the threaded sleeve and the L-shaped positioning adjustment plate is welded all around.

[0039] The first magnetic block 5 is 4 cm thick and 10 cm long, and is used to connect the first L-shaped positioning adjustment plate 6 with the upper and lower parts of the side ends of the corrugated steel web, so that the first L-shaped positioning adjustment plate 6 and the corrugated steel web are quickly magnetically connected, thereby speeding up construction efficiency.

[0040] The second positioning connecting member includes a second threaded sleeve 7, a second L-shaped positioning adjustment plate 9 and a second magnetic block 8. The second threaded sleeve 7 is fixedly connected to the inner side surface of the side end of the corrugated steel web 1. The second magnetic block 8 is arranged in the second threaded sleeve 7 and is magnetically connected to the inner side surface of the side end of the corrugated steel web 1. The side protrusion 13 of the second L-shaped positioning adjustment plate 9 is inserted into the second threaded sleeve 7 and is magnetically connected to the second magnetic block 8. The extending portion 14 of the second L-shaped positioning adjustment plate 9 is extended horizontally and placed at the joint and is overlapped between the extending portion 14 of the first L-shaped positioning adjustment plate 6 and fastened with bolts 11.

[0041] Compared with the first L-shaped movement adjustment plate 6, the second L-shaped movement adjustment plate 9 has only an inner short side increased by 13cm, from 16cm to 29cm, and an inner long side increased by 12cm, from 40cm to 52cm. In addition, a 2cm gap 15 is left between the side protrusion 13 of the second L-shaped movement adjustment plate 9 and the extended portion 14 of the first L-shaped movement adjustment plate 6 for easy installation. The reserved gap 15 between the two L-shaped movement adjustment plates can improve the construction efficiency.

[0042] The second threaded sleeve 7 and the first threaded sleeve 4 are only increased in length by 13 cm, from 20 cm to 33 cm, which can improve the stability of the corrugated steel web and the second L-shaped movement adjustment plate 9.

[0043] The second magnetic block 8 is 4 cm thick and 10 cm long, and is used to connect the second L-shaped positioning adjustment plate 9 with the upper and lower parts of the side ends of the corrugated steel web, so that the second L-shaped positioning adjustment plate 9 and the corrugated steel web are quickly magnetically connected, thereby speeding up construction efficiency.

[0044] like Figure 2 As shown, a third magnetic block 12 is disposed between the extension portion 14 of the first L-shaped movement adjustment plate 6 and the extension portion 14 of the second L-shaped movement adjustment plate 9. The third magnetic block 12 has a thickness of 4 cm and a length of 40 cm, and can be quickly connected to the next corresponding L-shaped movement adjustment plate to accelerate construction efficiency.

[0045] Holes 10 for passing bolts 11 are respectively formed on the extending portion 14 of the first L-shaped movement adjustment plate 6 , the extending portion 14 of the second L-shaped movement adjustment plate 9 and the third magnetic block 12 .

[0046] Specifically, the bolt 11 has a countersunk head, a high-strength bolt 11 with a performance level of 8.8 or above, a low-carbon alloy steel or medium-carbon steel and is heat-treated, and an A or B-grade refined bolt 11 is selected for precision. The bolt 11 has an outer diameter of 7.9 cm and an inner diameter of 6.9 cm. The bolt 116 has a length of 28 cm and an outer length of 5 cm. The nut 16 of the bolt 11 has an outer diameter of 8.0 cm and an inner diameter of 7.0 cm. A hexagonal nut 16 is used with a thickness of 4.0 cm. The bolt 11 can better connect the two L-shaped adjustment plates and speed up construction efficiency.

[0047] The outer side surface of the extending portion 14 of the first L-shaped movement adjustment plate 6 is magnetically connected to the inner side surface of the extending portion 14 of the second L-shaped movement adjustment plate 9 through the third magnetic block 12 .

[0048] The sum of the height of the side protrusion 13 of the first L-shaped movement adjustment plate 6 , the thickness of the extension portion 14 and the thickness of the third magnetic block 12 is equal to the height of the side protrusion 13 of the second L-shaped movement adjustment plate 9 .

[0049] like Figure 3 As shown, a pair of first and second positioning connectors that are matched and connected are respectively provided at the upper and lower parts of the side end joints between adjacent corrugated steel webs 1 .

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A corrugated steel-concrete composite web structure with installation and positioning function, comprising a plurality of corrugated steel webs and lining concrete, wherein the lining concrete is arranged on the inner side of the corrugated steel web, characterized in that: At least one pair of first and second positioning connectors that are matched and connected are vertically arranged at the side end joints between adjacent corrugated steel webs; The first positioning connector includes a first threaded sleeve, a first L-shaped positioning adjustment plate and a first magnetic block, the first threaded sleeve is fixedly connected to the inner side surface of the side end of the corrugated steel web, the first magnetic block is arranged in the first threaded sleeve and magnetically connected to the inner side surface of the side end of the corrugated steel web, the side protrusion of the first L-shaped positioning adjustment plate is inserted into the first threaded sleeve and magnetically connected to the first magnetic block, and the extension portion of the first L-shaped positioning adjustment plate is extended in the transverse direction and placed at the joint; The second positioning connecting piece includes a second threaded sleeve, a second L-shaped positioning adjustment plate and a second magnetic block. The second threaded sleeve is fixedly connected to the inner side surface of the side end of the corrugated steel web. The second magnetic block is arranged in the second threaded sleeve and is magnetically connected to the inner side surface of the side end of the corrugated steel web. The side protrusion of the second L-shaped positioning adjustment plate is inserted into the second threaded sleeve and is magnetically connected to the second magnetic block. The extending portion of the second L-shaped positioning adjustment plate is extended laterally and placed at the joint and is overlapped and bolted with the extending portion of the first L-shaped positioning adjustment plate.

2. The corrugated steel-concrete composite web structure with installation and positioning function according to claim 1 is characterized in that: A third magnetic block is disposed between the extending portion of the first L-shaped movement adjustment plate and the extending portion of the second L-shaped movement adjustment plate.

3. The corrugated steel-concrete composite web structure with installation and positioning function according to claim 1 is characterized in that: A pair of first and second positioning connectors that are matched and connected are respectively arranged at the upper and lower parts of the side end joints between adjacent corrugated steel webs.

4. The corrugated steel-concrete composite web structure with installation and positioning function according to claim 2 is characterized in that: The outer side surface of the extending portion of the first L-shaped movement adjustment plate is magnetically connected to the inner side surface of the extending portion of the second L-shaped movement adjustment plate through the third magnetic block.

5. The corrugated steel-concrete composite web structure with installation and positioning function according to claim 4 is characterized in that: The sum of the height of the side protrusion of the first L-shaped movement adjustment plate, the thickness of the extension portion and the thickness of the third magnetic block is equal to the height of the side protrusion of the second L-shaped movement adjustment plate.

6. The corrugated steel-concrete composite web structure with installation and positioning function according to claim 2, characterized in that: The extending portion of the first L-shaped movement adjustment plate, the extending portion of the second L-shaped movement adjustment plate and the third magnetic block are respectively provided with holes for passing bolts.

7. The corrugated steel-concrete composite web structure with installation and positioning function according to claim 1 is characterized in that The "thread" limitation of the first threaded sleeve and the second threaded sleeve has no specific function, the side protrusion of the L-shaped positioning adjustment plate is not provided with a corresponding external thread, and after the threaded sleeve is connected to the L-shaped positioning adjustment plate, the connection part between the end of the threaded sleeve and the L-shaped positioning adjustment plate is welded all around.

8. The corrugated steel-concrete composite web structure with installation and positioning function according to any one of claims 1 to 7, characterized in that: Two bolts for embedding into the lining concrete are fixedly arranged on the inner side of the horizontal panel of the corrugated steel web, and the bolts are respectively located on the three-point lines of the horizontal panel in the transverse direction.

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