Segmented assembly type road protective shed

Abstract

The utility model belongs to the technical field of bridge construction, and relates to a segmental assembly type road protective shed. A plurality of concrete foundations are provided for the segmental assembly type road protective shed, and a stand column is fixed to each concrete foundation through a bolt; steel corbels are arranged at the tops of the stand columns; the protective shed is further provided with cross beams and longitudinal beams. A plurality of longitudinal secondary beams are arranged between the two longitudinal beams; the left side and the right side of the two ends of each longitudinal secondary beam are each provided with a cross beam gusset plate. Each longitudinal secondary beam penetrates through the cross beam gusset plates on the corresponding two sides through bolts and is fixedly connected with the cross beam; each cross beam gusset plate is provided with a plurality of rows of through holes for bolts to penetrate through; the top and the bottom of each stand column are each provided with a stand column gusset plate, and every two adjacent stand columns are connected into a whole through a diagonal bridging installed on the gusset plates. And an adjustable screw rod is arranged below each diagonal bridging. According to the utility model, the quality of the component can be ensured, the waste of manpower and materials on the construction site can be reduced, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a segmented prefabricated highway protective shed. Background Technology

[0002] With the continuous expansion of the highway network, the number of grade-separated intersections of highway routes is increasing. Especially during highway construction, the construction of overpasses involves a large amount of work at height, such as hoisting and welding. Falling objects generated during these operations pose a serious threat to the safety of vehicles on the roads below. Therefore, it is necessary to erect protective sheds to isolate the construction area, prevent potential risks such as falling objects, and ensure the traffic safety of the roads below.

[0003] Highway guardrails come in various types to adapt to different construction environments and safety requirements. Ground-mounted guardrails are structurally stable, offer good protection, and can be directly supported on the ground, providing comprehensive protection for the road below. Cantilevered guardrails utilize the upper structure as a support point, extending a certain length to provide protection for the road below. Prefabricated guardrails are assembled using standardized and modular components, allowing for fast construction and easy disassembly.

[0004] During construction, ensuring unobstructed access to the road below and minimizing traffic disruptions is crucial. While maintaining structural stability and protective performance, the construction of the protective canopy needs to be quick and convenient. Therefore, the design must fully consider construction feasibility and efficiency, selecting structural forms and materials that are easy to install and dismantle. Segmented prefabricated highway protective canopies offer significant advantages in construction convenience and economic efficiency. They not only reduce material, labor, and maintenance costs but also improve construction efficiency and resource utilization. Utility Model Content

[0005] Based on existing technology, this utility model proposes a segmented prefabricated highway protective shed.

[0006] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0007] A segmented prefabricated highway protective canopy includes multiple concrete foundations, each with a column fixed to it by bolts; a steel bracket is installed at the top of each column; the canopy also includes crossbeams and longitudinal beams; two longitudinal beams are arranged in parallel; multiple crossbeams connect the two longitudinal beams; the longitudinal beams are connected to the steel brackets by bolts; multiple longitudinal secondary beams are also provided between the two longitudinal beams; crossbeam node plates are provided on the left and right sides of each of the two ends of each longitudinal secondary beam; the crossbeam node plates are fixed to the crossbeams; each longitudinal secondary beam is fixed to the crossbeam by bolts passing through the corresponding crossbeam node plates on both sides; each crossbeam node plate has multiple rows of through holes for bolts to pass through; each column has a column node plate 73 at its top and bottom, and adjacent columns are connected as one unit by scissor braces installed on the node plates; each scissor brace is equipped with an adjustable threaded rod to adapt to different turning radii at highway bends.

[0008] The crossbeams include a left crossbeam and a right crossbeam; the left crossbeam and the right crossbeam are fixedly connected by gusset plates and bolts.

[0009] To reduce stress concentration at the bolt holes, a longitudinal beam node plate is provided on the longitudinal beam, and a gusset plate of the same size is provided behind the longitudinal beam node plate, that is, the bolt passes through the longitudinal beam node plate, the crossbeam and the gusset plate in sequence.

[0010] Each of the concrete foundations has a pre-embedded steel plate embedded in its top surface; the pre-embedded steel plate is connected to the column as a whole by a flange and high-strength bolts.

[0011] Compared with existing technologies, the advantages and innovations of this utility model are as follows:

[0012] 1. This utility model adopts prefabrication and assembly technology, which is in line with the development direction of building industrialization. Except for the foundation, all components are prefabricated in the factory, which can not only ensure the quality of the components, but also reduce the waste of labor and materials on the construction site, realize the reuse of this utility model, and further reduce costs.

[0013] 2. This utility model adopts on-site bolt connection technology. Compared with on-site welding, bolt connection is easier to install and disassemble, greatly improving the convenience of construction. Bolted connection has high safety during construction and use. Especially on the construction site, bolt connection can greatly shorten the construction cycle and improve construction efficiency; in addition, bolt connection can not only save material costs to a certain extent, but also reduce environmental pollution.

[0014] 3. This utility model adopts a segmented technology for large components. This technology not only improves construction efficiency and reduces construction difficulty, but also facilitates transportation and installation. Due to the large span of highways, if a single large component is used for the crossbeam, on-site construction requires the use of a truck crane for installation. This utility model divides a single crossbeam into two smaller crossbeams, improving construction safety and installation efficiency.

[0015] 4. This utility model adds an adjustable screw rod to the scissor brace. By adjusting the screw rod, the length of the scissor brace can be precisely adjusted to adapt to highway curves with different turning radii. This precise adjustment not only ensures the stability of the support structure at the curve, preventing structural instability caused by changes in the turning radius and optimizing the structural stress, but also makes on-site construction more convenient. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a segmented prefabricated highway protective shed is provided for this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the lower layer of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view at point A, which is a schematic diagram of the connection between the protective canopy column and the concrete foundation;

[0019] Figure 4 for Figure 2 Enlarged view at point B, which is a schematic diagram of the connection between the protective canopy columns and the longitudinal and transverse beams;

[0020] Figure 5 for Figure 2 Enlarged view at point C, which is a schematic diagram of the connection between the longitudinal beam and the transverse beam of the protective shed;

[0021] Figure 6 for Figure 2 Enlarged view at point D, which is a schematic diagram of the connection between the left and right crossbeams of the protective shed;

[0022] Figure 7 for Figure 2 Enlarged view at point E, which is a schematic diagram of the connection between the protective canopy's crossbeam and the longitudinal secondary beam;

[0023] Figure 8 for Figure 2 The enlarged view at point F shows the connection diagram between the protective canopy column and the scissor bracing.

[0024] Legend: 1. Concrete foundation; 2. Column; 3. Flange; 4. Longitudinal beam; 5. Horizontal beam; 51. Left horizontal beam; 52. Right horizontal beam; 6. Steel bracket; 71. Longitudinal beam node plate; 72. Horizontal beam node plate; 73. Column node plate; 8. Bracing plate; 9. Longitudinal secondary beam; 10. Scissor brace; 11. Adjustable threaded rod. Detailed Implementation

[0025] In order to clearly understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 As shown in the figure, this embodiment provides a three-dimensional structural diagram of the front two spans of a segmented prefabricated highway protective canopy (the steel plate laid above the steel beam is hidden). It includes components such as foundation, columns, longitudinal beams, transverse beams, longitudinal secondary beams and scissor braces. Except for the foundation, all components are made of steel structure, and the connection between each component is bolted.

[0027] To facilitate the description of the connections between the components, Figure 2 This is a three-dimensional structural diagram of the lower layer of this utility model (the steel plate laid above the steel beam is hidden). Except for the different component dimensions, the upper and lower layers are constructed in the same way, with a spacing of 70cm between the upper and lower layers. Specifically, as shown... Figures 3-8 As shown. Figure 3 As shown, steel plates and high-strength bolts are pre-embedded at corresponding positions on the top surface of the concrete foundation 1. The pre-embedded steel plates and flange 3 are connected to the concrete foundation 1 and the column 2 as a whole by bolts; as shown Figure 4 As shown, steel brackets 6 are installed at corresponding positions on the top of column 2. Both longitudinal beams 4 and transverse beams 5 are supported on the steel brackets 6, and column 2 is connected to longitudinal beams 4 and transverse beams 5 as a whole by bolts. Figure 5 As shown, a longitudinal beam node plate 71 is installed at the corresponding position of the longitudinal beam 4. The longitudinal beam 4 and the transverse beam 5 are fixedly connected at the longitudinal beam node plate 71 by bolts. In addition, to reduce stress concentration at the bolt holes, a gusset plate of the same size is also installed behind the longitudinal beam node plate 71 shown in the figure. That is, the bolts pass through the longitudinal beam node plate 71, the transverse beam 5 and the gusset plate in sequence. Figure 6 As shown, the left crossbeam 51 and the right crossbeam 52 are fixedly connected by gusset plates 8 and bolts. Similarly, a gusset plate of the same size is also provided behind the gusset plate 8 shown in the figure. In particular, the load-bearing capacity of the structure can be improved by setting a certain pre-camber. Figure 7 As shown, a beam node plate 72 is installed at the corresponding position of the beam 5, and the beam 5 and the longitudinal secondary beam 9 are fixedly connected at the beam node plate 72 by bolts; as shown Figure 8As shown, column node plates 73 are installed at corresponding positions at the top and bottom of column 2. The scissor brace 10 is installed on the node plate 73, and the scissor brace is connected to the column as a whole by bolts. In particular, in order to adapt to different turning radii at the curves of the highway, an adjustable screw rod 11 is installed at the corresponding position below the scissor brace 10. The adjustable screw rod 11 can not only ensure the stability of the support structure at the curve and optimize the stress of the structure, but also make on-site construction more convenient.

[0028] The above description only outlines the basic principles, main features, and advantages of this utility model. Any person skilled in the art can modify or improve the above technical solutions for application in other fields. However, any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical essence of this utility model, without departing from its scope of application, shall still fall within the protection scope of this utility model.

Claims

1. A segmented prefabricated highway protective canopy, characterized in that: The protective canopy has multiple concrete foundations, each with a column fixed to it by bolts. A steel bracket is installed at the top of each column. The protective canopy also has crossbeams and longitudinal beams. Two longitudinal beams are arranged in parallel, connected by multiple crossbeams. The longitudinal beams are bolted to the steel brackets. Multiple longitudinal secondary beams are also installed between the two longitudinal beams. Each longitudinal secondary beam has a crossbeam node plate on both its left and right sides. The crossbeam node plates are fixed to the crossbeams. Each longitudinal secondary beam is bolted through the corresponding crossbeam node plates on both sides and is fixed to the crossbeam. Each crossbeam node plate has multiple rows of through holes for bolts. Each column has a column node plate at its top and bottom, and adjacent columns are connected as a single unit by scissor braces installed on the node plates. Each scissor brace has an adjustable threaded rod below it to accommodate different turning radii at road bends.

2. The segmented prefabricated highway protective canopy as described in claim 1, characterized in that: The crossbeams include a left crossbeam and a right crossbeam; the left crossbeam and the right crossbeam are fixedly connected by gusset plates and bolts.

3. The segmented prefabricated highway protective shed as described in claim 1, characterized in that: A longitudinal beam node plate is provided on the longitudinal beam, and a gusset plate of the same size is provided behind the longitudinal beam node plate, that is, the bolt passes through the longitudinal beam node plate, the crossbeam and the gusset plate in sequence.

4. The segmented prefabricated highway protective shed as described in claim 1, characterized in that: Each of the concrete foundations has a pre-embedded steel plate embedded in its top surface; the pre-embedded steel plate is connected to the column as a whole by a flange and high-strength bolts.

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