Expansion joint connecting structure of assembly type modular steel structure trestle

Abstract

The utility model discloses an expansion joint connecting structure of an assembly type modularized steel structure trestle, which relates to the field of building construction devices and comprises trestle box body support module units and a double-layer folded plate heat preservation assembly. An expansion joint is arranged between every two adjacent trestle box body support module units, and the double-layer folded plate heat preservation assemblies are arranged in the expansion joints and used for connecting the two adjacent trestle box body support module units. The double-layer folded plate heat preservation assembly comprises a first stainless steel folded plate, a second stainless steel folded plate and a heat preservation layer, and the heat preservation layer is of a sandwich structure and is arranged between the first stainless steel folded plate and the second stainless steel folded plate. The flat plate ends of the two sides of the first stainless steel folded plate and the second stainless steel folded plate are fixedly connected with the opposite faces of the two adjacent trestle box body support module units through bolts respectively. The trestle expansion joint is simple in structure and convenient to use, and the heat preservation and waterproof performance of the trestle expansion joint is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment, and in particular to an expansion joint connection structure for a prefabricated modular steel structure trestle. Background Technology

[0002] Prefabricated modular steel structure trestle bridges are an important connecting structure. These trestle bridges are assembled from multiple standard modules, and their structural design is flexible, adaptable to different terrains and usage requirements. During the assembly process, expansion joints are usually installed to meet the longitudinal deformation requirements of the trestle bridge. Expansion joints are connecting devices that can withstand certain displacement changes, and their main function is to effectively prevent structural damage and deformation caused by seasonal thermal expansion and contraction, vibration, settlement and other factors.

[0003] However, existing expansion joints between coal conveying trestle and the main steel structure often suffer from water leakage. During production, to keep the trestle clean and control the amount of dust inside, water flushing is usually used to clean the inside of the trestle. However, due to the insufficient sealing performance of the expansion joints, black coal water will seep out from the expansion joints after flushing, which not only affects the overall aesthetics of the trestle but also easily creates safety hazards. In addition, traditional methods of treating expansion joints cannot achieve the desired insulation effect and cannot match the overall insulation environment of the trestle system, resulting in energy waste, environmental pollution, and economic losses.

[0004] Therefore, how to develop an expansion joint connection structure for a prefabricated modular steel structure trestle that is simple in structure, easy to use, and effectively improves the thermal insulation and waterproofing performance of the trestle's expansion joints has become a technical problem that urgently needs to be solved by people in this field. Utility Model Content

[0005] The purpose of this utility model is to provide an expansion joint connection structure for a prefabricated modular steel structure trestle. The structure is simple, easy to use, and effectively improves the thermal insulation and waterproofing performance of the expansion joints of the trestle.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses an expansion joint connection structure for a prefabricated modular steel structure trestle, including a trestle box support module unit and a double-layer folded plate insulation component. Multiple trestle box support module units are assembled together to form a conveyor corridor support. An expansion joint is provided between each two adjacent trestle box support module units. The double-layer folded plate insulation component is placed in the expansion joint and is used to connect two adjacent trestle box support module units.

[0008] The double-layer folded plate insulation component includes a first stainless steel folded plate, a second stainless steel folded plate, and an insulation layer. The insulation layer is sandwiched between the first stainless steel folded plate and the second stainless steel folded plate. The flat ends on both sides of the first stainless steel folded plate and the second stainless steel folded plate are respectively fastened to the opposite surfaces of two adjacent trestle box support module units by bolts.

[0009] Preferably, the trestle box support module unit includes corrugated steel plates and blade stiffening ribs. Every two blade stiffening ribs form a group, and multiple corrugated steel plates are spaced apart between two blade stiffening ribs. The two ends of the corrugated steel plates are fixedly connected to the opposite surfaces of the two blade stiffening ribs, respectively.

[0010] Preferably, the blade stiffening rib has a first mounting hole, and the first stainless steel folding plate and the second stainless steel folding plate are both threadedly fastened to the blade stiffening rib through the first mounting hole.

[0011] Preferably, the flat ends on both sides of the first stainless steel folding plate and the second stainless steel folding plate are provided with second mounting holes that match the first mounting holes.

[0012] Preferably, the insulation layer is filled within a cavity formed by the first stainless steel folding plate, the second stainless steel folding plate, and the two blade stiffening ribs.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] 1) This utility model uses thermal insulation rock wool as the insulation material, which effectively blocks heat transfer and improves the thermal insulation performance of the expansion joints of the trestle.

[0015] 2) This utility model adopts a double-layer folding plate design structure composed of a first stainless steel folding plate and a second stainless steel folding plate, which is used to connect two adjacent trestle box support module units, so that the adjacent module units form an integral sealed structure, effectively improving the waterproof performance of the trestle structure and ensuring the sealing of the expansion joint.

[0016] 3) The first and second stainless steel folding plates have a large gap between the crests and troughs. This structural design significantly improves the ability of the expansion joint to absorb elongation and contraction deformation, thereby enhancing the adaptability and stability of the trestle under dynamic conditions. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the expansion joint connection structure of a prefabricated modular steel structure trestle according to the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the expansion joint connection structure of a prefabricated modular steel structure trestle according to the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the double-layer folded plate thermal insulation component of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Trestle box support module unit; 11. Corrugated steel plate; 12. Blade stiffening rib; 13. First mounting hole; 2. Double-layer folded plate insulation component; 21. First stainless steel folded plate; 22. Second stainless steel folded plate; 23. Insulation layer. Detailed Implementation

[0022] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] like Figure 1-3 As shown, an expansion joint connection structure for a prefabricated modular steel structure trestle includes a trestle box support module unit 1 and a double-layer folded plate insulation component 2. Multiple trestle box support module units 1 are assembled together to form a conveyor corridor support. An expansion joint is provided between each two adjacent trestle box support module units 1. The double-layer folded plate insulation component 2 is placed in the expansion joint and is used to connect two adjacent trestle box support module units 1.

[0024] The double-layer folded plate insulation component 2 includes a first stainless steel folded plate 21, a second stainless steel folded plate 22, and an insulation layer 23. The insulation layer 23 is sandwiched between the first stainless steel folded plate 21 and the second stainless steel folded plate 22. The flat ends on both sides of the first stainless steel folded plate 21 and the second stainless steel folded plate 22 are respectively fastened to the opposite surfaces of two adjacent trestle box support module units 1 by bolts.

[0025] Specifically, the insulation layer 23 is made of insulating rock wool and sandwiched between the first stainless steel folding plate 21 and the second stainless steel folding plate 22. This structural design can significantly improve the insulation performance of the expansion joint connection of the steel structure trestle.

[0026] Specifically, the trestle box support module unit 1 includes corrugated steel plates 11 and blade stiffening ribs 12. Every two blade stiffening ribs 12 form a group, and multiple corrugated steel plates 11 are spaced apart between two blade stiffening ribs 12. The two ends of the corrugated steel plates 11 are fixedly connected to the opposite surfaces of the two blade stiffening ribs 12 respectively.

[0027] Specifically, the blade stiffening rib 12 has a first mounting hole 13, and the first stainless steel folding plate 21 and the second stainless steel folding plate 22 are both threadedly fastened to the blade stiffening rib 12 through the first mounting hole 13.

[0028] Specifically, the flat ends of both sides of the first stainless steel folding plate 21 and the second stainless steel folding plate 22 are reserved with second mounting holes that match the first mounting holes 13.

[0029] Specifically, the insulation layer 23 is filled in the cavity formed by the first stainless steel folding plate 21, the second stainless steel folding plate 22 and the two blade stiffening ribs 12.

[0030] Specifically, this utility model adopts a double-layer folding plate design structure composed of a first stainless steel folding plate 21 and a second stainless steel folding plate 22, which is used to connect two adjacent trestle box support module units 1, so that the adjacent module units form an integral sealed structure, effectively improving the waterproof performance of the trestle structure and ensuring the sealing of the expansion joint.

[0031] Specifically, the first stainless steel folding plate 21 and the second stainless steel folding plate 22 have a large gap between the crests and troughs. This structural design significantly improves the ability of the expansion joint to absorb elongation and contraction deformation, thereby enhancing the adaptability and stability of the trestle under dynamic conditions.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An expansion joint connection structure for a prefabricated modular steel structure trestle bridge, characterized in that: The system includes a trestle box support module unit (1) and a double-layer folded plate insulation component (2). Multiple trestle box support module units (1) are assembled together to form a conveyor corridor support. An expansion joint is provided between each two adjacent trestle box support module units (1). The double-layer folded plate insulation component (2) is set in the expansion joint and is used to connect two adjacent trestle box support module units (1). The double-layer folded plate insulation component (2) includes a first stainless steel folded plate (21), a second stainless steel folded plate (22), and an insulation layer (23). The insulation layer (23) is sandwiched between the first stainless steel folded plate (21) and the second stainless steel folded plate (22). The flat ends of the first stainless steel folded plate (21) and the second stainless steel folded plate (22) are respectively fastened to the opposite surfaces of two adjacent trestle box support module units (1) by bolts.

2. The expansion joint connection structure of a prefabricated modular steel structure trestle bridge according to claim 1, characterized in that: The trestle box support module unit (1) includes corrugated steel plates (11) and blade stiffening ribs (12). Each pair of blade stiffening ribs (12) forms a group. Multiple corrugated steel plates (11) are spaced apart between two blade stiffening ribs (12). The two ends of the corrugated steel plates (11) are fixedly connected to the opposite surfaces of the two blade stiffening ribs (12).

3. The expansion joint connection structure of a prefabricated modular steel structure trestle according to claim 2, characterized in that: The blade stiffening rib (12) has a first mounting hole (13) reserved on it. The first stainless steel folding plate (21) and the second stainless steel folding plate (22) are both threadedly fastened to the blade stiffening rib (12) through the first mounting hole (13).

4. The expansion joint connection structure of a prefabricated modular steel structure trestle according to claim 3, characterized in that: The flat ends of both sides of the first stainless steel folding plate (21) and the second stainless steel folding plate (22) are reserved with second mounting holes that match the first mounting hole (13).

5. The expansion joint connection structure of a prefabricated modular steel structure trestle bridge according to claim 4, characterized in that: The insulation layer (23) is filled in the cavity formed by the first stainless steel folding plate (21), the second stainless steel folding plate (22) and the two blade stiffening ribs (12).

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