Concrete bridge deck slab steel trestle curve section corner construction structure

Abstract

The utility model relates to a concrete bridge deck slab steel trestle curve section corner construction structure which comprises a curve section at a corner, a first section and a second section, wherein the first section and the second section are arranged on the two sides of the corner. The inner sides of the first section and the second section are close to each other and the outer sides of the first section and the second section are far away from each other at the corner to form a corner angle; spandrel girders are arranged below the two sides of the corner, transverse distribution girders are respectively mounted on the spandrel girders on the two sides, the two transverse distribution girders are splayed to form a corner angle, a plurality of longitudinal distribution girders are longitudinally mounted at the corner angle, and the longitudinal distribution girders are sequentially lengthened from the inner side of the corner to the outer side of the corner to effectively disperse stress. The supporting stability is enhanced, and the safety of the trestle is ensured; and the installation process is simpler and more convenient, the technical requirements on constructors are reduced, and the construction cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of trestle construction, in particular to a curved section corner construction structure of a concrete bridge deck steel trestle. Background Art

[0002] With the rapid development of my country's economy, transportation modes such as coastal railways and urban rail transit have developed rapidly. For the bridges currently being built across rivers, seas, and lakes, when the bridge piers are located at sea, steel trestles are generally built as construction channels. The corner treatment of steel trestles in curved sections is a major technical challenge. The steel panels of traditional steel trestles corrode severely in marine environments, and the construction of curved sections is difficult. Traditional methods require precise measurement and installation, which is time-consuming and labor-intensive. Therefore, the use of concrete bridge panels has greatly saved construction costs. There are several problems at corners: 1. Stress concentration is prone to occur at corners, leading to structural deformation or damage; 2. In curved sections, the support system is subjected to greater lateral forces due to bending, which can easily cause unstable support; 3. The construction of curved sections is difficult, and traditional methods require precise measurement and installation, which is time-consuming and labor-intensive. Summary of the Invention

[0003] In order to solve the above problems, the purpose of the utility model is to provide a concrete bridge deck steel trestle curved section corner construction structure, which effectively disperses stress, enhances the stability of the support, and ensures the safety of the trestle; the installation process is simpler, reduces the technical requirements for construction personnel, and saves construction costs.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a concrete bridge deck steel trestle curved section corner construction structure, comprising a curved section at the corner and a first section and a second section on both sides of the corner; the first section and the second section are close to each other on the inner side of the corner and far away from each other on the outer side, forming a corner angle; the lower sides of the corner are load-bearing beams, and transverse distribution beams are respectively installed on the load-bearing beams on both sides, and the two transverse distribution beams are in an eight-shaped shape to form a corner angle, and a number of longitudinal distribution beams are longitudinally installed at the corner angle, and the longitudinal distribution beams are lengthened from the inner side of the corner to the outer side of the corner.

[0005] The first and second sections are connected on both sides of the corner, forming a connection with the curved section. Through the design of being closer on the inside and farther away on the outside, a natural corner angle is formed to ensure that the bridge turns smoothly and the structure is stable. The load-bearing beams support the bridge structure on both sides of the corner, bear the weight of the superstructure, and provide sufficient bearing capacity to ensure the stability and deformation resistance of the bridge at the corner. The transverse distribution beam distributes the load laterally and evenly distributes the load to the longitudinal distribution beam. The figure-eight design can effectively cope with the mechanical changes at the corner, ensure uniform load distribution, and reduce stress concentration. The longitudinal distribution beam distributes the load longitudinally and transfers the load to the load-bearing beam below. The design that gradually lengthens from the inside to the outside can better adapt to the mechanical requirements of the corner and improve the bearing capacity and stability of the bridge.

[0006] Preferably, a steel pipe pile foundation is driven at the bottom of the load-bearing beam.

[0007] Preferably, there are three steel pipe pile foundations at the bottom of the load-bearing beam on one side, and there are three steel pipe pile foundations at the bottom of the load-bearing beam on the other side.

[0008] The steel pipe pile foundation provides deep foundation support, transferring the load to a more solid soil layer. By setting the steel pipe pile foundation at the bottom of the load-bearing beam, the stability and anti-overturning ability of the entire structure are enhanced, especially under poor foundation conditions.

[0009] Preferably, the density of the longitudinal distribution beams increases from the inner side of the corner to the outer side of the corner.

[0010] The longitudinal distribution beam distributes the load longitudinally and transfers the load to the load-bearing beam below. The arrangement with increasing density can better adapt to the mechanical requirements of corners and improve the bearing capacity and stability of the bridge.

[0011] Preferably, the longitudinal distribution beams are arranged in parallel.

[0012] Preferably, the transverse distribution beam and the longitudinal distribution beam are welded to form a frame structure.

[0013] It provides rigidity to the overall structure, enhances the structure's ability to resist deformation, ensures the firmness of the overall structure, avoids local stress concentration, and improves the stability and durability of the overall bridge.

[0014] Preferably, patterned steel plates are provided above the transverse distribution beam and the longitudinal distribution beam.

[0015] Providing a non-slip surface to increase driving safety. Increasing the friction of the bridge deck prevents vehicles from slipping and improves the safety of the bridge deck.

[0016] Preferably, the surfaces of the first and second sections are precast concrete panels, the sum of the heights of the transverse distribution beam and the longitudinal distribution beam is the height of the precast concrete panel, and the surface of the longitudinal distribution beam is flush with the surface of the precast concrete panel.

[0017] The precast concrete deck provides a smooth driving surface. Designed flush with the surface of the longitudinal distribution beam, it ensures a smooth bridge deck, improving construction efficiency and structural stability.

[0018] Preferably, the load-bearing beam includes a longitudinal load-bearing beam and a transverse load-bearing beam, and the longitudinal load-bearing beam is installed below the transverse load-bearing beam.

[0019] The longitudinal load-bearing beams carry longitudinal loads, while the transverse load-bearing beams carry transverse loads. Together, they form the overall load-bearing system. This combined design allows the bridge to withstand multi-directional loads, improving the overall stability and seismic performance of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a curved section corner construction structure of a concrete bridge deck steel trestle.

[0021] Figure 2 This is a structural schematic diagram of the surface of the corner construction structure of a curved section of a concrete bridge deck steel trestle in the utility model.

[0022] Figure 3 This is a structural schematic diagram of the cross section of a concrete bridge deck steel trestle curved section corner construction structure of the utility model. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 The present invention is further described in detail with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] like Figure 1-3 The shown corner construction structure of a curved section 1 of a concrete bridge deck steel trestle comprises: a curved section 1 at the corner and a first section 2 and a second section 3 on both sides of the corner; the first section 2 and the second section 3 are close to each other on the inner side of the corner and far away from each other on the outer side to form a corner angle; the lower sides of the corner are load-bearing beams 9, and transverse distribution beams 4 are respectively installed on the load-bearing beams 9 on both sides, and the two transverse distribution beams 4 are in an eight-shaped shape to form a corner angle, and a number of longitudinal distribution beams 5 are longitudinally installed at the corner angle, and the longitudinal distribution beams 5 are lengthened from the inner side of the corner to the outer side of the corner.

[0028] The first section 2 and the second section 3 are respectively connected on both sides of the corner to form a connection with the curved section 1. Through the design of being close on the inside and far away on the outside, a natural corner angle is formed to ensure that the corner of the bridge is smooth and the structure is stable. The load-bearing beam 9 supports the bridge structure on both sides of the corner, bears the weight of the superstructure, provides sufficient bearing capacity, and ensures the stability and deformation resistance of the bridge at the corner. The transverse distribution beam 4 distributes the load laterally and evenly distributes the load to the longitudinal distribution beam 5. The figure-eight design can effectively cope with the mechanical changes at the corner, ensure uniform load distribution, and reduce stress concentration. The longitudinal distribution beam 5 distributes the load longitudinally and transfers the load to the load-bearing beam 9 below. The design of gradually lengthening from the inside to the outside can better adapt to the mechanical requirements of the corner and improve the bearing capacity and stability of the bridge.

[0029] Specifically, a steel pipe pile foundation is driven at the bottom of the load-bearing beam 9 .

[0030] Specifically, there are three steel pipe pile foundations at the bottom of the load-bearing beam 9 on one side, and there are three steel pipe pile foundations at the bottom of the load-bearing beam 9 on the other side.

[0031] The steel pipe pile foundation provides deep foundation support and transfers the load to a more solid soil layer. By arranging the steel pipe pile foundation at the bottom of the load-bearing beam 9, the stability and anti-overturning ability of the entire structure are enhanced, especially under poor foundation conditions.

[0032] Specifically, the density of the longitudinal distribution beams 5 increases from the inner side of the corner to the outer side of the corner.

[0033] The longitudinal distribution beam 5 distributes the load longitudinally and transfers the load to the load-bearing beam 9 below. The arrangement with increasing density can better adapt to the mechanical requirements of the corners and improve the bearing capacity and stability of the bridge.

[0034] Specifically, the longitudinal distribution beams 5 are arranged in parallel.

[0035] Specifically, the transverse distribution beam 4 and the longitudinal distribution beam 5 are welded to form a frame structure.

[0036] It provides rigidity to the overall structure, enhances the structure's ability to resist deformation, ensures the firmness of the overall structure, avoids local stress concentration, and improves the stability and durability of the overall bridge.

[0037] Specifically, a patterned steel plate 7 is provided above the transverse distribution beam 4 and the longitudinal distribution beam 5 .

[0038] Providing a non-slip surface to increase driving safety. Increasing the friction of the bridge deck prevents vehicles from slipping and improves the safety of the bridge deck.

[0039] Specifically, the surfaces of the first section 2 and the second section 3 are precast concrete panels 8, the sum of the height of the transverse distribution beam 4 and the height of the longitudinal distribution beam 5 is the height of the precast concrete panel 8, and the surface of the longitudinal distribution beam 5 is flush with the surface of the precast concrete panel 8.

[0040] The precast concrete panels 8 provide a smooth driving surface. By being designed to be flush with the surface of the longitudinal distribution beam 5, the bridge deck is ensured to be smooth, thus improving construction efficiency and structural stability.

[0041] Specifically, the load-bearing beam 9 includes a longitudinal load-bearing beam and a transverse load-bearing beam, and the longitudinal load-bearing beam is installed below the transverse load-bearing beam.

[0042] The longitudinal load-bearing beams carry longitudinal loads, while the transverse load-bearing beams carry transverse loads. Together, they form the overall load-bearing system. This combined design allows the bridge to withstand multi-directional loads, improving the overall stability and seismic performance of the structure.

[0043] In short, the above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application for the present invention should fall within the scope of the present invention.

Claims

1. A concrete bridge deck steel trestle curved section corner construction structure, characterized in that: include: The curved segment at the corner and the first segment and the second segment on both sides of the corner; The first section and the second section are close to each other on the inner side of the corner and far away from each other on the outer side, forming a corner angle; the lower sides of the corner are load-bearing beams, and transverse distribution beams are respectively installed on the load-bearing beams on both sides, and the two transverse distribution beams are in an eight-shaped shape, forming a corner angle, and a number of longitudinal distribution beams are longitudinally installed at the corner angle, and the longitudinal distribution beams are lengthened from the inner side of the corner to the outer side of the corner.

2. The concrete bridge deck steel trestle curved section corner construction structure according to claim 1, characterized in that: A steel pipe pile foundation is driven at the bottom of the load-bearing beam.

3. The concrete deck steel trestle curved section corner construction structure according to claim 1, characterized in that: There are three steel pipe pile foundations at the bottom of the load-bearing beam on one side, and there are three steel pipe pile foundations at the bottom of the load-bearing beam on the other side.

4. The concrete deck steel trestle curved section corner construction structure according to claim 1, characterized in that: The density of the longitudinal distribution beams increases from the inner side of the corner to the outer side of the corner.

5. The concrete deck steel trestle curved section corner construction structure according to claim 1, characterized in that: The longitudinal distribution beams are arranged in parallel.

6. The concrete deck steel trestle curved section corner construction structure according to claim 1, characterized in that: The transverse distribution beam and the longitudinal distribution beam are welded to form a frame structure.

7. The concrete bridge deck steel trestle curved section corner construction structure according to claim 1, characterized in that: Patterned steel plates are provided above the transverse distribution beam and the longitudinal distribution beam.

8. The concrete deck steel trestle curved section corner construction structure according to claim 1, characterized in that: The surfaces of the first and second sections are precast concrete panels. The sum of the heights of the transverse distribution beam and the longitudinal distribution beam is the height of the precast concrete panel. The surface of the longitudinal distribution beam is flush with the surface of the precast concrete panel.

9. The concrete deck steel trestle curved section corner construction structure according to claim 1, characterized in that: The load-bearing beam includes a longitudinal load-bearing beam and a transverse load-bearing beam, and the longitudinal load-bearing beam is installed below the transverse load-bearing beam.

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