CN220685751U - Prefabricated integral bridge deck railway simply supported T beam structure with sound barrier - Google Patents

Abstract

The utility model provides a prefabricated integral bridge deck railway simply supported T-beam structure with a sound barrier, which relates to the technical field of railway bridges and comprises at least two prefabricated T-beams, a diaphragm tensioning mechanism, a sound barrier mechanism and a pavement mechanism; the prefabricated T beam comprises bridge decks, webs and diaphragm plates, the bridge decks are arranged on the upper surface of the prefabricated T beam, adjacent diaphragm plates are fixedly connected through wet joint concrete, and the adjacent bridge decks are fixedly connected through the wet joint concrete to form an integral bridge deck; the diaphragm tensioning mechanism is horizontally arranged along the width direction of the integral bridge deck, and is used for tensioning and fixing all diaphragms; the sound barrier mechanism is arranged at the outer edge of any side of the integral bridge deck; the pavement mechanism is arranged at two sides of the integral bridge deck. The bridge deck plate does not need cast-in-situ construction, so that the construction difficulty is reduced, and the engineering quality can be ensured.

Description

Prefabricated integral bridge deck railway simply supported T beam structure with sound barrier

Technical Field

The utility model relates to the technical field of railway bridges, in particular to a prefabricated integral bridge deck railway simply supported T-beam structure with a sound barrier.

Background

The railway construction in China has the characteristics of long mileage and large coverage area, so that the influence range of the railway noise problem is wide, and the sound barrier is an important measure for reducing the local environmental pollution of the railway traffic noise to the areas on two sides of the traffic line. Currently, two main structural forms, namely a cast-in-situ integral bridge deck scheme and a steel beam scheme, mainly exist for a railway simply supported T-beam bridge with a sound barrier. However, these prior art techniques have some problems in the application process. In the cast-in-situ integral bridge deck scheme, the construction difficulty is high and the engineering quality is difficult to ensure because the bridge deck has more transverse prestress steel bundles and the reserved transverse prestress pore canals of each precast beam are difficult to align. In the steel beam scheme, the I-shaped steel beam and the sound barrier base are required to be welded and formed in a factory, so that the quality can be ensured, and the later maintenance amount is large.

Based on the shortcomings of the prior art, there is a need for a prefabricated monolithic deck railway simply supported T-beam structure with a sound barrier.

Disclosure of Invention

The utility model aims to provide a prefabricated integral bridge deck railway simply supported T-beam structure with a sound barrier so as to solve the problems. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the application provides a establish prefabricated integral bridge floor railway letter T roof beam structure of sound barrier, include: at least two prefabricated T beams, a diaphragm tensioning mechanism, a sound barrier mechanism and a pavement mechanism; the prefabricated T beam comprises bridge decks, webs and transverse partition plates, wherein the bridge decks are arranged on the upper surfaces of the prefabricated T beams, adjacent transverse partition plates are fixedly connected through wet joint concrete, and adjacent bridge decks are fixedly connected through wet joint concrete to form an integral bridge deck; the diaphragm tensioning mechanism is horizontally arranged along the width direction of the integral bridge deck, and is used for tensioning and fixing all diaphragms; the sound barrier mechanism is arranged at the outer edge of any side of the integral bridge deck; the pavement mechanisms are arranged on two sides of the integral bridge deck; the prefabricated T beam comprises a prefabricated side beam and a prefabricated middle beam, and the width of the bridge deck of the simply supported side beam is larger than that of the bridge deck of the simply supported middle beam.

Further, the number of the prefabricated T beams is two, the two prefabricated T beams are prefabricated outer beams, and the two prefabricated outer beams form a single-track railway bridge.

Further, the number of the prefabricated T beams is four, two of the prefabricated T beams are prefabricated outer beams, two of the prefabricated T beams are prefabricated middle beams, two of the prefabricated outer beams are symmetrically arranged on two sides of the bridge, two of the prefabricated middle beams are arranged between the two prefabricated outer beams, and the two prefabricated outer beams and the two prefabricated middle beams form a double-line railway bridge.

Further, the prefabricated T beam is of a prefabricated beam structure.

Further, the deck slab is a prefabricated deck slab.

Further, the diaphragm tensioning mechanism comprises at least two prestress steel bundles, a through hole matched with the prestress steel bundles is formed in the diaphragm, and the prestress steel bundles penetrate through the through hole.

Further, the sound barrier mechanism comprises a concrete foundation, a sound barrier embedded part and a sound barrier upright post, wherein the concrete foundation is arranged at the edge of the integral bridge deck, the sound barrier embedded part is arranged in the concrete foundation, and the sound barrier upright post is fixedly connected with the concrete foundation through the sound barrier embedded part.

Further, pavement mechanism includes fender tiny fragments of stone, coal, etc. wall, erects wall and apron, it is being close to keep off tiny fragments of stone, etc. wall one side at whole decking center, erect the wall setting and keep away from one side at whole decking center, the both ends of apron respectively with keep off tiny fragments of stone, etc. wall's upper surface with erect the upper surface fixed connection of wall, apron upper surface forms the pavement, apron keep off tiny fragments of stone, etc. wall erect the wall with enclose between the whole decking and close the cavity that forms as the cable groove.

The beneficial effects of the utility model are as follows:

the utility model adopts the mode of connecting the bridge deck and the diaphragm plates, and forms the integral bridge deck by fixedly connecting wet joint concrete. Compared with the traditional cast-in-place concrete scheme, the bridge deck of the utility model does not need cast-in-place construction, thereby reducing construction difficulty and ensuring engineering quality; by placing the pavement, the cable trough and the sound barrier on the precast beam, the safety of bridge construction and operation is improved.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a single-track railway bridge with a sound barrier-equipped prefabricated integral bridge deck railway simply supported T-beam structure in an embodiment of the utility model;

fig. 2 is a schematic structural diagram of a prefabricated integral bridge deck railway simply supported T-beam structure with a sound barrier according to an embodiment of the present utility model, which is a double-track railway bridge.

The marks in the figure: 1. prefabricating a T beam; 11. a bridge deck; 12. a diaphragm; 13. a web; 2. a diaphragm tensioning mechanism; 21. prestress steel bundles; 3. a sound barrier mechanism; 31. a concrete foundation; 32. a sound barrier embedded part; 33. sound barrier posts; 4. a sidewalk mechanism; 41. a ballast blocking wall; 42. erecting a wall; 43. and a cover plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present utility model, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2, the present embodiment provides a prefabricated integral bridge deck railway simply supported T-beam provided with a sound barrier, including: at least two prefabricated T beams 1, a diaphragm tensioning mechanism 2, a sound barrier mechanism 3 and a pavement mechanism 4. The prefabricated T beam 1 is used for supporting and bearing the whole bridge deck structure, can effectively share and transfer the load on the bridge, and ensures the stability and safety of the bridge. The prefabricated T beam 1 comprises bridge decks 11, webs 13 and diaphragm plates 12, the bridge decks 11 are arranged on the upper surface of the prefabricated T beam 1, adjacent diaphragm plates 12 are fixedly connected through wet joint concrete, and the adjacent bridge decks 11 are fixedly connected through the wet joint concrete to form an integral bridge deck 11. The bridge deck 11 is arranged on the upper surface of the prefabricated T beam 1 and plays a role in bearing the travelling load. To ensure the stability and strength of the overall structure, adjacent diaphragm plates 12 and adjacent deck boards 11 are fixedly connected by wet joint concrete, forming a complete overall deck board 11. Wet-joint concrete is a technique in which concrete is poured into joints of prefabricated parts to form a joint during construction. By applying wet-joint concrete between diaphragm 12 and deck slab 11, they can be effectively tightly joined together to form a solid, unitary deck slab 11. The connecting mode has good anti-seismic performance and durability, and can bear the load born by the bridge and keep stable. The diaphragm tensioning mechanism 2 is horizontally arranged along the width direction of the integral bridge deck 11, and the diaphragm tensioning mechanism 2 is used for tensioning and fixing all diaphragms 12. The diaphragm plate 12 is tensioned and fixed, so that the diaphragm plate 12 is connected with the prefabricated T beam 1 more tightly, and the overall rigidity and stability of the bridge deck are improved. The sound barrier mechanism 3 is disposed on the outer edge of either side of the integral bridge deck 11. The sound barrier is arranged at the outer edge of one side of the integral bridge deck 11, and has the main function of reducing noise transmission generated by the bridge and providing noise reduction effect. The sound barrier can effectively isolate traffic noise and improve the noise level of the surrounding environment. The pavement mechanisms 4 are arranged on two sides of the integral bridge deck 11; wherein, prefabricated T roof beam 1 includes prefabricated boundary beam and prefabricated well roof beam, and the decking 11 width of prefabricated boundary beam is greater than the decking 11 width of prefabricated well roof beam. The design considers different load distribution conditions on the bridge deck 11, meets load requirements at different positions by adjusting the width of the simply supported beams, and ensures the strength and stability of the bridge deck structure.

Further, as shown in fig. 1, the number of the prefabricated T beams 1 is two, the two prefabricated T beams 1 are prefabricated outer beams, and the two prefabricated outer beams form a single-track railway bridge. Such a design provides functionality and performance to accommodate single track rail operation.

In other real-time examples, as shown in fig. 2, the number of the prefabricated T beams 1 is four, two of the prefabricated T beams are prefabricated outer beams, two of the prefabricated T beams are prefabricated middle beams, the two prefabricated outer beams are symmetrically arranged on two sides of the bridge, the two prefabricated middle beams are arranged between the two prefabricated outer beams, and the two prefabricated outer beams and the two prefabricated middle beams form a double-track railway simply supported T beam. By combining the two types of beams, the structural requirements and engineering requirements of the two-wire railway bridge can be better met.

Further, the prefabricated T-beam 1 is a prefabricated beam structure. A precast beam structure is a construction method in which beam members are manufactured in a factory or a precast site and then transported to a site for installation and assembly. By such a design, the beam manufacturing and construction process can be performed in a controlled environment, thereby ensuring the quality and consistency of the beam.

Further, the deck slab 11 is a prefabricated deck slab 11. By using the prefabricated bridge deck 11, a faster, more efficient bridge construction can be achieved. During the prefabrication process, the dimensions, strength and other performance metrics of the deck slab 11 can be precisely controlled to ensure that it meets design requirements.

Further, the diaphragm tensioning mechanism 2 comprises at least two prestressed steel bundles 21, through holes matched with the prestressed steel bundles 21 are formed in the diaphragm 12, and the prestressed steel bundles 21 penetrate through the through holes. The prestressed steel bundles 21 are high-strength steel materials that provide internal stresses of the bridge structure by applying pre-calculated prestressing force to counteract load-induced stresses. The diaphragm plate 12 is provided with a through hole matched with the prestressed steel beam 21, the prestressed steel beam 21 is penetrated in the through hole, and the tensioning and fixing of the diaphragm plate 12 are realized by tensioning the prestressed steel beam 21.

Further, the sound barrier mechanism 3 includes a concrete foundation 31, a sound barrier embedded part 32, and a sound barrier column 33, the concrete foundation 31 is disposed at the edge of the integral bridge deck 11, the sound barrier embedded part 32 is disposed in the concrete foundation 31, and the sound barrier column 33 is fixedly connected with the concrete foundation 31 through the sound barrier embedded part 32. The concrete foundation 31 is located at the edge of the integral bridge deck 11 and serves to provide stable support and securement for the sound barrier. The concrete foundation 31 is typically a solid foundation formed by casting concrete during construction. The sound barrier embedments 32 are embedded inside the concrete foundation 31 as a connection assembly for the sound barrier posts 33. The embedded part is a special member which is pre-installed when the concrete foundation 31 is constructed so as to be fixedly connected with the sound barrier upright 33. The sound barrier column 33 is a vertical columnar structure for supporting the sound barrier panel. They are fixedly connected with the concrete foundation 31 by being matched with the sound barrier embedded parts 32. This fixed connection ensures robustness and reliability between the sound barrier column 33 and the bridge structure. The sound barrier mechanism 3 is designed to reduce noise and vibration transmitted from the bridge, and to provide a sound-insulating effect, thereby protecting the surrounding environment and surrounding residents from peace. By providing the concrete foundation 31, the sound barrier embedments 32, and the sound barrier posts 33, the sound barrier mechanism 3 can stably fix the sound barrier panel, reduce noise transmission, and provide a sound insulation effect.

Further, the pavement mechanism 4 comprises a ballast blocking wall 41, a vertical wall 42 and a cover plate 43, wherein the ballast blocking wall 41 is arranged on one side close to the center of the integral bridge deck 11, the vertical wall 42 is arranged on one side far away from the center of the integral bridge deck 11, two ends of the cover plate 43 are fixedly connected with the upper surface of the ballast blocking wall 41 and the upper surface of the vertical wall 42 respectively, a pavement is formed on the upper surface of the cover plate 43, and a cavity formed by enclosing among the cover plate 43, the ballast blocking wall 41, the vertical wall 42 and the integral bridge deck 11 is used as a cable groove. The blocking wall 41 is used to prevent vibration deflection, resonance or minor modification of the bridge, and in this application also provides a boundary and isolation function separating the maintenance personnel's pavement from the railroad track or other portions of the bridge. The positions and heights of the blocking walls 41 and the vertical walls 42 can be adjusted according to specific design requirements and safety standards. The cover plate 43 is an upper cover layer of the sidewalk, and is connected to the upper surface of the blocking wall 41 and the upper surface of the vertical wall 42. The design of the cover plate 43 takes into account the pedestrian's walking needs, providing a flat and safe walking surface. The cavity formed between the cover plate 43, the ballasting wall 41, the vertical wall 42 and the integral bridge deck 11 may be used as a cable groove. The cable can be arranged through the cavity for power, communication and other facilities on the bridge. This design facilitates the placement and maintenance of the cable while maintaining the functional and structural integrity of the pavement.

Further, the application provides a construction method of a prefabricated integral bridge deck railway simply supported T beam, which comprises the following concrete construction procedures: first, a prefabricated T-beam is fabricated. Next, the handling work of the prefabricated T-beams is completed and correctly placed on the bridge site. Then, the wet joints of the diaphragm plates 12 and the bridge deck 11 are poured, and the adjacent diaphragm plates 12 and the bridge deck 11 are fixedly connected by wet joint concrete, so that the integral bridge deck 11 is formed. On the basis, the transverse prestress steel bundles 21 at the diaphragm plate 12 are tensioned and fixed, and grouting and sealing anchoring are carried out, so that the stability and strength of the diaphragm plate 12 are ensured. Then, construction of the cast-in-place ballast blocking wall 41, the vertical wall 42 and the sound barrier foundation is performed. The installation of these structural elements is performed on the side of the integral deck slab 11, wherein the ballast blocking wall 41 is disposed on the side near the center of the deck slab 11 and the vertical wall 42 is disposed on the side away from the center of the deck slab 11. The construction of the sound barrier foundation is also completed at this stage. And finally, installing the sound barrier, and fixedly connecting the sound barrier with a sound barrier foundation. Compared with the cast-in-situ integral bridge deck sound barrier scheme, the construction process is reduced, and the cast-in-situ engineering quantity of bridge positions is greatly reduced. Meanwhile, compared with the traditional steel beam sidewalk structural scheme, the integral bridge deck 11 adopted by the novel steel beam sidewalk structural scheme has better integrity and safety, and maintenance workload is greatly reduced. The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (8)

1. Establish prefabricated integral bridge floor railway letter T roof beam structure of sound barrier, its characterized in that includes:

the prefabricated T beams (1) comprise bridge decks (11), webs (13) and transverse partition plates (12), wherein the bridge decks (11) are arranged on the upper surfaces of the prefabricated T beams (1), adjacent transverse partition plates (12) are fixedly connected through wet joint concrete, and adjacent bridge decks (11) are fixedly connected through wet joint concrete to form an integral bridge deck (11);

the diaphragm tensioning mechanism (2) is horizontally arranged along the width direction of the integral bridge deck (11), and the diaphragm tensioning mechanism (2) is used for tensioning and fixing all diaphragms (12);

the sound barrier mechanism (3) is arranged on the outer edge of any one side or two sides of the integral bridge deck (11); and the sidewalk mechanism (4), the sidewalk mechanism (4) is arranged at two sides of the integral bridge deck (11);

the prefabricated T beam (1) comprises a prefabricated side beam and a prefabricated middle beam, and the width of a bridge deck (11) of the prefabricated side beam is larger than that of the bridge deck (11) of the prefabricated middle beam.

2. The sound barrier-equipped prefabricated monolithic deck railway simply supported T-beam structure of claim 1, wherein: the number of the prefabricated T beams (1) is two, the two prefabricated T beams (1) are prefabricated outer beams, and the two prefabricated outer beams form a single-track railway bridge.

3. The sound barrier-equipped prefabricated monolithic deck railway simply supported T-beam structure of claim 1, wherein: the number of the prefabricated T beams (1) is four, two prefabricated outer beams are arranged, two prefabricated middle beams are arranged symmetrically on two sides of the bridge, two prefabricated middle beams are arranged between the two prefabricated outer beams, and two prefabricated outer beams and two prefabricated middle beams form a double-line railway bridge.

4. A prefabricated monolithic deck railway simply supported T-beam structure provided with a sound barrier according to claim 2 or 3, characterized in that: the prefabricated T beam (1) is of a prefabricated beam structure.

5. A prefabricated monolithic deck railway simply supported T-beam structure provided with a sound barrier according to claim 2 or 3, characterized in that: the bridge deck (11) is a prefabricated bridge deck (11).

6. The sound barrier-equipped prefabricated monolithic deck railway simply supported T-beam structure of claim 1, wherein: the diaphragm tensioning mechanism (2) comprises at least two prestress steel bundles (21), a through hole matched with the prestress steel bundles (21) is formed in the diaphragm (12), and the prestress steel bundles (21) penetrate through the through hole.

7. The sound barrier-equipped prefabricated monolithic deck railway simply supported T-beam structure of claim 1, wherein: the sound barrier mechanism (3) comprises a concrete foundation (31), a sound barrier embedded part (32) and a sound barrier upright post (33), wherein the concrete foundation (31) is arranged at the edge of the integral bridge deck (11), the sound barrier embedded part (32) is arranged in the concrete foundation (31), and the sound barrier upright post (33) is fixedly connected with the concrete foundation (31) through the sound barrier embedded part (32).

8. The sound barrier-equipped prefabricated monolithic deck railway simply supported T-beam structure of claim 1, wherein: the pavement mechanism (4) comprises a blocking ballast wall (41), a vertical wall (42) and a cover plate (43), wherein the blocking ballast wall (41) is arranged on one side close to the center of the integral bridge deck (11), the vertical wall (42) is arranged on one side far away from the center of the integral bridge deck (11), two ends of the cover plate (43) are fixedly connected with the upper surface of the blocking ballast wall (41) and the upper surface of the vertical wall (42) respectively, a pavement is formed on the upper surface of the cover plate (43), and the cover plate (43) is provided with the blocking ballast wall (41) and the vertical wall (42) and a cavity formed by encircling the integral bridge deck (11) are used as cable grooves.