Fully-fabricated temporary high fence structure suitable for urban construction and serving as advertising board

Abstract

The utility model discloses a fully-assembled temporary high fence structure suitable for urban construction and serving as an advertising board, which comprises a prefabricated reinforced concrete module and a finished steel truss column module arranged on the prefabricated reinforced concrete module, and the prefabricated reinforced concrete module and the finished steel truss column module are connected through a bolt connecting piece; the device is simple in structure and reasonable in design, through the arrangement of the embedded reinforced concrete modules and the finished steel truss column modules, the device is modularized and prefabricated, disassembly and transportation are convenient, recycling can be achieved, energy conservation and carbon reduction are achieved, the embedded reinforced concrete modules are prefabricated in a factory, waiting for concrete solidification is not needed, and the construction cost is reduced. And the durability of the finished steel truss module can be improved by increasing the thickness of a steel plate of a steel member and painting a coating with a high anti-corrosion and anti-rust grade.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering construction, in particular to a fully assembled temporary high retaining wall structure suitable for urban construction and billboards. Background Technique

[0002] Temporary retaining walls need to be set up for urban engineering construction to meet the requirements of safe and civilized construction. Enterprises often use high retaining wall structures for publicity in aspects such as corporate culture and safe and civilized construction. The engineering construction period is long. Especially for the construction period of urban rail transit stations, it ranges from 2 to 5 years. The height of the billboard is generally required to be 3 - 6 meters, and the foundation needs to be a cast-in-place large-volume reinforced concrete independent foundation to resist the wind load. Because the construction generally needs to occupy the traffic road for a long time, it not only affects the traffic but also has potential safety hazards.

[0003] Deficiencies of the prior art:

[0004] At present, there are fully assembled retaining walls in China. However, because the retaining wall needs to resist the wind load (wind load with a recurrence period of 10 years, which is not more than 0.3 KN / ㎡ in most cities), generally, the assembled retaining wall structure above the ground can only reach a height of more than 2 meters. For high retaining walls above 3 meters, considering economy in wind resistance, the foundation needs to be buried underground, and the self-weight of the concrete foundation and the lateral passive earth pressure of the soil are used to resist the wind load. Currently, all are cast-in-place. The retaining wall structure system with a light steel wall composed of H-shaped steel columns, steel pipe truss columns and rectangular steel pipe beams welded above the ground still has the following deficiencies: First, the cast-in-place foundation and welded structure need to be demolished after the project is completed, resulting in a large amount of resource waste; Second, the construction progress of the cast-in-place foundation is relatively slow, occupying a long project cycle. At the same time, due to the lack of a mature lightweight and fully assembled system structure plan for temporary high retaining walls, it causes the project department to temporarily spend energy on design, review, and bidding when each project starts, resulting in a great waste of materials, manpower, funds, and time. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fully assembled temporary high retaining wall structure suitable for urban construction and billboards, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A fully assembled temporary high retaining wall structure suitable for urban construction and billboards, including a precast reinforced concrete module and a finished steel truss column module arranged on the precast reinforced concrete module, characterized in that: the precast reinforced concrete module and the finished steel truss column module are connected by bolt connectors;

[0007] The precast reinforced concrete module includes:

[0008] A reinforced concrete foundation, and the shape of the reinforced concrete foundation is a cube;

[0009] Embedded nut, the embedded nut is embedded in the reinforced concrete foundation, the diameter of the embedded nut is 32 mm, and the length is 200 mm;

[0010] Anchoring steel bars, the anchoring steel bars are embedded in the reinforced concrete foundation and fixedly connected with the embedded nut, the diameter of the anchoring steel bars is 12 mm, and the length is 300 mm.

[0011] Preferably, the finished steel truss column module includes:

[0012] Column bottom plate, the column bottom plate is arranged on the reinforced concrete foundation;

[0013] Stiffening rib, the stiffening rib is arranged on the column bottom plate;

[0014] The first steel pipe column, the first steel pipe column is arranged on the column bottom plate and fixedly connected with the stiffening rib;

[0015] The second steel pipe column, the second steel pipe column is arranged on the column bottom plate on one side of the first steel pipe column and fixedly connected with the stiffening rib, and the height of the second steel pipe column is lower than that of the first steel pipe column;

[0016] Web member, both ends of the web member are respectively connected to the first steel pipe column and the second steel pipe column;

[0017] Connecting piece cold-formed channel steel, the connecting piece cold-formed channel steel is fixedly arranged on the side of the first steel pipe column away from the second steel pipe column.

[0018] Preferably, it is characterized in that: the bolt connecting piece includes:

[0019] Screw rod, the bolt specification is grade 5.6 M20;

[0020] Gasket, the gasket is sleeved on the outer side of the top end of the screw rod;

[0021] Double nuts, the double nuts are sleeved on the outer side of the screw rod on the gasket.

[0022] Preferably, the first steel pipe column is a steel pipe, the second steel pipe column is a steel pipe, the web member is an equal-angle steel, the column bottom plate is a circular steel plate, and the stiffening rib is a steel plate.

[0023] Preferably, a steel wall beam fixed by a bolt connecting piece is arranged on the first steel pipe column, and an advertising board fixed by a nail gun is arranged on the steel wall beam.

[0024] Preferably, the foundation pit around the precast reinforced concrete module is backfilled with cement mortar.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] The fully prefabricated temporary high retaining wall structure applicable to urban construction and billboards modularizes and prefabricates the device by setting up embedded reinforced concrete modules and finished steel truss column modules, which is convenient for disassembly and transportation, can be reused, and realizes energy conservation and carbon reduction.

[0027] The fully prefabricated temporary high retaining wall structure applicable to urban construction and billboards is provided with embedded reinforced concrete modules. The embedded reinforced concrete modules include reinforced concrete foundations, embedded nuts, and anchor bars. The embedded reinforced concrete modules are prefabricated in the factory without waiting for the concrete to solidify, improving the assembly efficiency and saving the construction period.

[0028] The fully prefabricated temporary high retaining wall structure applicable to urban construction and billboards is provided with finished steel truss column modules. The finished steel truss column modules include column bottom end plates, stiffeners, first steel pipes, second steel pipes, web members, and connecting member cold-formed channels. The finished steel truss modules can improve durability by thickening the steel plate thickness of the steel members and applying coatings with a higher anti-corrosion and rust-proof grade. Brief Description of the Drawings

[0029] Figure 1 It is the overall three-dimensional schematic diagram of the present utility model;

[0030] Figure 2 It is the transverse elevation view of the fully prefabricated temporary high retaining wall structure of the present utility model;

[0031] Figure 3 It is the connection plan layout drawing of the steel truss column and the precast reinforced concrete module of the present utility model;

[0032] Figure 4 It is the enlarged schematic diagram at A of the present utility model;

[0033] Figure 5 It is the schematic diagram of the connecting member between the finished steel truss column module and the precast reinforced concrete module of the present utility model.

[0034] In the figures: 1. Prefabricated reinforced concrete module; 101. Reinforced concrete foundation; 102. Embedded nut; 103. Anchor bar; 2. Finished steel truss column module; 201. Column bottom end plate; 202. Stiffener; 203. First steel pipe; 204. Second steel pipe; 205. Web member; 206. Connecting member cold-formed channel; 3. Bolt connecting member; 301. Screw rod; 302. Gasket; 303. Double nuts; 4. Steel wall beam; 5. Nail; 6. Advertising board; 7. Backfill of the foundation pit and fat groove with self-compacting low-strength M5 cement mortar. Detailed Implementation Manner

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as a limitation to the present utility model.

[0037] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Embodiment

[0039] Please refer to Figures 1-5 As shown in the figure, the present utility model provides a technical solution for a fully prefabricated temporary high retaining wall structure suitable for urban construction and billboards: a fully prefabricated temporary high retaining wall structure suitable for urban construction and billboards, including a precast reinforced concrete module 1 and a finished steel truss column module 2 arranged on the precast reinforced concrete module 1, and the precast reinforced concrete module 1 and the finished steel truss column module 2 are connected by a bolt connector 3;

[0040] The precast reinforced concrete module 1 includes a reinforced concrete foundation 101, embedded nuts 102, and anchoring steel bars 103. The reinforced concrete foundation 101 is integrally precast in the factory, with a concrete strength grade of C35. A steel reinforcement cage with a diameter of 14 mm and a spacing of 150 mm made of HRB400 is configured. It is cube-shaped, with a width of 1.3 m, a length of 1.0 m, and a thickness of 1.0 m. The embedded nuts 102 are embedded in the reinforced concrete foundation 101. The diameter of the embedded nuts 102 is 32 mm, the length is 200 mm, the material is steel bars, and the material grade is HRB400. The anchoring steel bars 103 are embedded in the reinforced concrete foundation 101 and fixedly connected to the embedded nuts 102. The diameter of the anchoring steel bars 103 is 12 mm, the length is 300 mm, and the material grade is HRB400.

[0041] The finished steel truss column module 2 includes a column bottom plate 201, stiffening ribs 202, a first steel pipe column 203, a second steel pipe column 204, web members 205, and connecting member cold-formed channel steels 206. The steel truss column is integrally welded, rust-removed, and painted in the factory. The width is 0.6 - 0.7 m, and the height is 3.0 - 6.0 m. The column bottom plate 201 is set on the reinforced concrete foundation 101, and the stiffening ribs 202 are set on the column bottom plate 201. The first steel pipe column 203 is set on the column bottom plate 201 and fixedly connected to the stiffening ribs 202. The second steel pipe column 204 is set on the column bottom plate 201 on one side of the first steel pipe column 203 and fixedly connected to the stiffening ribs 202. The height of the second steel pipe column 204 is slightly lower than that of the first steel pipe column 203. The two ends of the web member 205 are respectively connected to the first steel pipe column 203 and the second steel pipe column 204. A number of connecting member cold-formed channel steels 206 are fixedly set on the side of the first steel pipe column 203 away from the second steel pipe column 204. The first steel pipe column 203 is a steel pipe with a size of 89 mm * 3.0 mm, the second steel pipe column 204 is a steel pipe with a size of 76 mm * 3.0 mm, the web member 205 is an equal-angle steel with a size of 40 mm * 3.0 mm, the column bottom plate 201 is a circular steel plate with a size of 300 mm * 10 mm, the stiffening ribs 202 are steel plates with a size of 150 mm * 100 mm * 3 mm, and the connecting member cold-formed channel steels 206 are cold-formed channel steels with a size of 160 mm * 60 mm * 3 mm. The steel strength grade is Q355 (low-alloy high-strength structural steel).

[0042] The bolt connection 3 includes a screw rod 301, a gasket 302, and double nuts 303. The gasket 302 is sleeved on the outer side of the top end of the screw rod 301, and the double nuts 303 are sleeved on the outer side of the screw rod 301 on the gasket 302. The bolt specification is grade 5.6, M20 (B grade).

[0043] There is a steel wall beam 4 fixed on the finished steel truss column module 2 with the bolt connection 3, and there is an advertising board 6 fixed on the steel wall beam 4 with a nail 5.

[0044] The foundation pit around the precast reinforced concrete module 1 is backfilled with self-compacting low-strength grade M5 cement mortar 7.

[0045] During the installation of this device, after transporting the precast reinforced concrete module 1 and the finished steel truss column module 2 prefabricated in the factory to the construction site, first hoist the precast reinforced concrete module 1 into the leveled foundation pit. After adjusting it in place, tighten the connecting screw 301. Then hoist the first steel pipe column 203 and the second steel pipe column 204. Align the bolt holes of the column bottom plate 201 with the screw 301 for installation. After the column is adjusted in place, put on the gasket 302, and then tighten the double nuts 303. The foundation pit around the concrete foundation is backfilled with self-compacting low-strength grade M5 cement mortar 7. Hoist the steel wall beam 4 (160mm×60mm, cold-formed thin-walled with a 20mm×2mm curled edge, strength grade Q355) to the cold-formed channel steel 206 of the connecting piece of the finished steel truss column module 2. After aligning the bolt holes, insert the nuts, put on the gaskets 302, and tighten the double nuts 303 after adjusting it in place. Fix the advertising board 6 on the steel wall beam 4 with the nail 5, and fix the enclosure landscape and advertising cloth on the advertising board 6.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully prefabricated temporary high retaining wall structure applicable to urban construction and billboards, comprising a precast reinforced concrete module (1) and a finished steel truss column module (2) arranged on the precast reinforced concrete module (1), characterized in that: The precast reinforced concrete module (1) and the finished steel truss column module (2) are connected by bolt connectors (3). The precast reinforced concrete module (1) includes: A reinforced concrete foundation (101), and the shape of the reinforced concrete foundation (101) is a cuboid. Embedded nuts (102) are embedded in the reinforced concrete foundation (101), and the diameter of the embedded nuts (102) is 32 mm and the length is 200 mm. Anchoring steel bars (103) are embedded in the reinforced concrete foundation (101) and fixedly connected to the embedded nuts (102). The diameter of the anchoring steel bars (103) is 12 mm and the length is 300 mm.

2. The fully prefabricated temporary high retaining wall structure applicable to urban construction and billboards according to claim 1, wherein: The finished steel truss column module (2) includes: A column bottom plate (201) is arranged on the reinforced concrete foundation (101). Stiffening ribs (202) are arranged on the column bottom plate (201). A first steel pipe column (203) is arranged on the column bottom plate (201) and fixedly connected to the stiffening ribs (202). A second steel pipe column (204) is arranged on the column bottom plate (201) on one side of the first steel pipe column (203) and fixedly connected to the stiffening ribs (202). The height of the second steel pipe column (204) is lower than that of the first steel pipe column (203). Web members (205), and the two ends of the web members (205) are respectively connected to the first steel pipe column (203) and the second steel pipe column (204). A connecting piece cold-formed channel steel (206) is fixedly arranged on the side of the first steel pipe column (203) away from the second steel pipe column (204).

3. The full prefabricated temporary high enclosure structure applicable to urban construction and billboards according to claim 1, characterized in that: The bolt connector (3) includes: A screw rod (301), and the bolt specification is grade 5.6 M20. A gasket (302) is sleeved on the outer side of the top end of the screw rod (301). Double nuts (303) are sleeved on the outer side of the screw rod (301) and located on the gasket (302).

4. A fully prefabricated temporary high retaining wall structure applicable to urban construction and billboards according to claim 1, characterized in that: The first steel pipe column is a steel pipe, the second steel pipe column (204) is a steel pipe, the web members (205) are equal-angle steel, the column bottom plate (201) is a circular steel plate, and the stiffening ribs (202) are steel plates.

5. A fully prefabricated temporary high enclosure structure applicable to urban construction and billboards according to claim 1, characterized in that: A steel wall beam (4) fixed by bolt connectors (3) is arranged on the first steel pipe column (203), and an advertising board (6) fixed by nail guns (5) is arranged on the steel wall beam (4).

6. The full prefabricated temporary high retaining wall structure applicable to urban construction and billboards according to claim 1, characterized in that: The foundation pit around the precast reinforced concrete module (1) is backfilled with cement mortar (7).

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