CN218643192U

CN218643192U - Assembled prestressed concrete simply supported hollow bridge plate

Info

Publication number: CN218643192U
Application number: CN202223134749.4U
Authority: CN
Inventors: 陈武崇; 陈晟; 陈武辉; 陈武洪; 王鈜波; 汤虹
Original assignee: Pengsheng Construction Group Co ltd
Current assignee: Pengsheng Construction Group Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-03-17
Anticipated expiration: 2032-11-24

Abstract

The utility model discloses an assembled prestressed concrete letter hollow bridge plate, including the bridge plate main part with encircle the groove, bridge plate main part both ends integral type is connected with the board end, and lies in bridge plate main part bottom surface between the board end and has seted up and encircle the groove to the drawknot has the pull rod between the board end, steel strand wires are installed at bridge plate main part top. Has the advantages that: the utility model discloses set up in bridge plate main part bottom surface and encircle the groove, make the bridge plate main part form the domes similar to Zhao state bridge, under the condition of same cross sectional dimension, the bridge plate main part of domes bears bigger vertical load than the bridge plate of rectangle structure, therefore, the structure is more reliable and more stable, bridge plate main part both ends bottom surface integral type connecting plate end, carry out the drawknot through the pull rod, the horizontal component that produces by domes is resisted to the pull rod, thereby make this device be applicable to the condition that there is not horizontal stop gear at both ends, very big having made things convenient for the staff to be connected the bridge plate main part with the antidetonation support of bridge, for traditional domes, application scope is wider.

Description

Assembled prestressed concrete simply supported hollow bridge plate

Technical Field

The utility model relates to a prefabricated bridge floor structure technical field particularly, relates to assembled prestressed concrete simple hollow bridge plate.

Background

The bridge deck is also called a lane plate and is a bearing structure for directly bearing the wheel pressure of a vehicle, the prefabricated bridge deck is a bridge deck formed by prefabricating and maintaining in a factory and can be directly spliced and installed on site, and the prefabricated bridge deck exerts prestress to improve the integral compressive strength and the bearing capacity.

After retrieval, the application provides a problem that the existing concrete prefabricated bridge deck cannot meet the use requirement, and a nickel alloy steel cage and a reinforcing net are adopted to improve the structural bearing capacity, but the bearing capacity is smaller than that of an arch section and a box section under the same section area due to the adoption of a plate body with a rectangular section, the bearing capacity is limited by the structure of the nickel alloy steel cage, meanwhile, the nickel alloy steel cage is expensive and troublesome in manufacturing cost, so that the cost is increased linearly, and the conventional arch section bridge slab or arch section beam must ensure that two ends of the conventional arch section bridge slab or arch section beam have enough horizontal support when in construction, so that the application range is smaller, and therefore, an arch assembly type prestressed concrete simply-supported hollow bridge slab is provided to solve the problem.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an assembled prestressed concrete letter hollow bridge plate possesses the advantage that bearing capacity is good, application range is wide, the installation of being convenient for, and then solves the problem among the above-mentioned background art.

(II) technical scheme

For the advantage that realizes that above-mentioned bearing capacity is good, application range is wide, the installation of being convenient for, the utility model discloses a concrete technical scheme as follows:

assembled prestressed concrete letter hollow bridge plate, including the bridge plate main part and encircle the groove, bridge plate main part both ends integral type is connected with the board end, and lies in the bridge plate main part bottom surface between the board end and has seted up and encircle the groove to the drawknot has the pull rod between the board end, steel strand wires are installed at bridge plate main part top, and the steel strand wires both ends are fixed through the ground tackle drawknot.

Furthermore, the surface of the bridge plate main body is positioned between the steel strand and the arch groove and is provided with a plurality of middle holes which are communicated.

Furthermore, the panel is pre-buried in the board end outer wall, threaded ends are arranged at two ends of the pull rod, the pull rod penetrates through the board end and the panel, the threaded ends penetrate through the panel and extend to the outer side of the panel, a nut is sleeved on the outer wall of the threaded ends in a threaded mode, and the nut is tightly abutted to the panel.

Furthermore, the two ends of the bridge plate main body are provided with abdicating grooves, and the anchorage device is positioned in the abdicating grooves.

Further, the panel is made of metal plates, and the thickness of the panel is not less than 1cm.

Furthermore, the pull rod is provided with a plurality of, and the pull rod adopts the metal pole to the spray of pull rod outer wall has anticorrosive paint.

Furthermore, the steel strands and the anchorage devices are arranged at equal intervals and are provided with a plurality of groups.

(III) advantageous effects

Compared with the prior art, the utility model provides an assembled prestressed concrete letter hollow bridge plate possesses following beneficial effect:

(1) The utility model discloses set up in bridge plate main part bottom surface and encircle the groove, make the bridge plate main part form the domes similar to the Zhao state bridge, under the same cross sectional dimension's condition, the bridge plate main part of domes bears bigger vertical load than the bridge plate of rectangle structure, therefore, the structure is more reliable and more stable, and simultaneously, bridge plate main part both ends bottom surface integral type connecting plate end, carry out the drawknot through the pull rod, the horizontal component that produces by domes is resisted to the pull rod, thereby make this device be applicable to the condition that there is not horizontal stop gear at both ends, the very big staff that has made things convenient for is connected the bridge plate main part with the antidetonation support of bridge, for traditional domes, application scope is wider.

(2) The utility model discloses a steel strand wires and ground tackle adopt steel strand wires and ground tackle to carry out the prestressing force to the bridge plate main part and stretch out and draw, make the inside compressive stress that produces of bridge plate main part, offset or reduce the tensile stress that the load produced, further improved the stability and the intensity of structure, further improve bearing capacity to run through on the surface of bridge plate main part and set up middle hole, further reduced the dead weight when improving rivers and passing through the ability, be convenient for install and use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an assembled prestressed concrete simply-supported hollow bridge deck according to the present invention;

FIG. 2 is an enlarged view of the A node of the assembled prestressed concrete simply-supported hollow bridge slab provided by the utility model;

FIG. 3 is a front view of the assembled prestressed concrete simply supported hollow bridge deck provided by the present invention;

fig. 4 is an external structure schematic diagram of the assembled prestressed concrete simply-supported hollow bridge slab provided by the utility model.

In the figure:

1. a bridge plate main body; 2. steel strand wires; 3. an arch groove; 4. a middle hole; 5. a pull rod; 6. a board end; 7. a panel; 8. a nut; 9. a threaded end; 10. a yielding groove; 11. an anchorage device.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides assembled prestressed concrete letter hollow bridge plate.

Referring now to the drawings and the detailed description, the present invention is further illustrated, as shown in fig. 1-4, an assembled prestressed concrete simply supported hollow bridge slab according to an embodiment of the present invention comprises a main body 1 and arch grooves 3, wherein two ends of the main body 1 are integrally connected with slab ends 6, reinforcing bars are arranged inside the main body 1, and two ends of the reinforcing bars are bent downwards and extend into the slab ends 6, then, the main body 1 and the slab grooves are integrally cast to form a whole, the arch grooves 3 are arranged on the bottom surface of the main body 1 between the slab ends 6, pull rods 5 are tied between the slab ends 6, steel strands 2 are arranged on the top of the main body 1, two ends of the steel strands 2 are tied and fixed by anchors 11, wherein two ends of the main body 1 are provided with abdication grooves 10, the anchors 11 are arranged in the abdication grooves 10, for a common prestressed structure in the field, not shown in detail in the drawings, and not described herein, an arch groove 3 is formed in the bottom surface of the bridge plate main body 1, so that the bridge plate main body 1 forms an arch structure similar to a Zhao state bridge, and under the condition of the same cross-sectional dimension, the bridge plate main body 1 with the arch structure bears a larger vertical load than a bridge plate with a rectangular structure, so that the structure is more stable and reliable, meanwhile, the bottom surfaces of the two ends of the bridge plate main body 1 are integrally connected with plate ends 6, and are subjected to pulling through pull rods 5, and the pull rods 5 resist horizontal component force generated by the arch structure, so that the device is suitable for the situation that horizontal limiting mechanisms do not exist at the two ends, and is greatly convenient for workers to connect the bridge plate main body 1 with an anti-seismic support of a bridge, and has a wider application range compared with a conventional arch mechanism.

In one embodiment, the surface of the bridge plate main body 1 is positioned between the steel strand 2 and the arch groove 3, the middle holes 4 are formed, the middle holes 4 are communicated and formed in a plurality of numbers, the steel strand 2 and the anchorage device 11 are adopted to conduct prestress tensioning on the bridge plate main body 1, so that compressive stress is generated inside the bridge plate main body 1, the tensile stress generated by load is offset or reduced, the stability and the strength of the structure are further improved, the bearing capacity is further improved, the middle holes 4 are formed in the surface of the bridge plate main body 1 in a penetrating mode, the dead weight is further reduced while the water flow passing capacity is improved, and the installation and the use are convenient.

In one embodiment, the panel 7 is embedded in the outer wall of the plate end 6, the threaded end 9 is opened at both ends of the pull rod 5, the pull rod 5 penetrates through the plate end 6 and the panel 7, the threaded end 9 penetrates through the panel 7 and extends to the outside of the panel 7, the nut 8 is screwed on the outer wall of the threaded end 9, and the nut 8 is tightly abutted to the panel 7, which is a common tie structure.

In one embodiment, the panel 7 is made of metal plate, and the thickness of the panel 7 is not less than 1cm, so that the contact area of the nut 8 and the plate end 6 is increased, the pressure is reduced, and the plate end 6 is prevented from being damaged under pressure.

In one embodiment, the pull rods 5 are provided with a plurality of metal rods, the pull rod 5 is improved in tie effect, and the outer wall of the pull rod 5 is sprayed with anti-corrosion paint, so that rusting is reduced.

In one embodiment, the steel strands 2 and the anchorage 11 are arranged in multiple groups at equal intervals, which is a common measure in the art and will not be described herein in detail.

The working principle is as follows:

arch groove 3 is set on the bottom surface of main body 1, make main body 1 form the arch structure similar to Zhao state bridge, under the condition of same cross-sectional dimension, arch structure's main body 1 bears bigger vertical load than rectangular structure's bridge, therefore, the structure is more stable and reliable, simultaneously, bridge main body 1 both ends bottom surface integral type link plate end 6, draw through pull rod 5, pull rod 5 resists the horizontal component produced by arch structure, thereby make this device be applicable to the condition that there is not horizontal stop gear at both ends, the very big staff that has made things convenient for is connected bridge main body 1 with the antidetonation support of bridge, for traditional arch structure, application scope is wider, simultaneously, utilize steel strand 2 and ground tackle 11 to carry out the prestressing force stretch-draw to main body 1, make the inside compressive stress that produces of main body 1, counteract or reduce the tensile stress that the load produced, further improved structural stability and intensity, further improve bearing capacity, and set up middle hole 4 in the surface of main body 1, when improving the ability of water flow through, further reduce dead weight of installation and use.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Assembled prestressed concrete simply supported hollow bridge slab, its characterized in that includes bridge slab main part (1) and encircles groove (3), bridge slab main part (1) both ends integral type is connected with board end (6), and lies in bridge slab main part (1) bottom surface between board end (6) and has seted up and encircle groove (3) to the drawknot has pull rod (5) between board end (6), steel strand wires (2) are installed at bridge slab main part (1) top, and steel strand wires (2) both ends are fixed through ground tackle (11) drawknot.

2. The assembled prestressed concrete simply-supported hollow bridge slab as claimed in claim 1, wherein a plurality of intermediate holes (4) are formed in the surface of the slab body (1) between the steel strands (2) and the arch groove (3), and the intermediate holes (4) are formed in a penetrating manner.

3. The assembled prestressed concrete simply-supported hollow bridge deck according to claim 1, wherein the outer wall of the deck end (6) is embedded with a panel (7), the two ends of the tie rod (5) are provided with threaded ends (9), the tie rod (5) penetrates through the deck end (6) and the panel (7), the threaded ends (9) penetrate through the panel (7) and extend to the outer side of the panel (7), the outer wall of the threaded ends (9) is sleeved with a nut (8) in a threaded manner, and the nut (8) abuts against the panel (7).

4. The assembled prestressed concrete simply-supported hollow bridge slab as claimed in claim 1, wherein both ends of said slab body (1) are provided with an abdicating groove (10), and said anchorage (11) is located in said abdicating groove (10).

5. The fabricated prestressed concrete simply-supported hollow bridge deck as claimed in claim 3, wherein said panels (7) are made of metal plates, and the thickness of said panels (7) is not less than 1cm.

6. The assembled prestressed concrete simply-supported hollow bridge deck according to claim 1, wherein a plurality of tie rods (5) are provided, the tie rods (5) are metal rods, and the outer walls of the tie rods (5) are coated with anticorrosive paint.

7. The assembled prestressed concrete simply-supported hollow bridge deck as claimed in claim 1, wherein said steel strands (2) and anchors (11) are arranged in groups at equal intervals.