CN111996919B - Town road bridge simple beam construction structures - Google Patents
Town road bridge simple beam construction structures Download PDFInfo
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- CN111996919B CN111996919B CN202010882051.7A CN202010882051A CN111996919B CN 111996919 B CN111996919 B CN 111996919B CN 202010882051 A CN202010882051 A CN 202010882051A CN 111996919 B CN111996919 B CN 111996919B
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- sleeved
- bearing suspension
- suspension beam
- arc
- supporting rod
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a construction structure of a simply supported beam of a municipal road bridge, which comprises two adjacent floor bases, wherein the upper ends of the two floor bases are provided with clamping grooves, and a limiting flange which is abutted against the floor bases is fixedly sleeved on a support. The invention sets a pillar with a vertical hole and a piston cavity in the adjacent landing base, sets a piston and a strong supporting rod in an integrated structure in the vertical hole and the piston cavity, and supports a horizontally arranged bearing suspension beam by using the strong supporting rod; the supporting frame which is sleeved on the upper side wall of the strut and can adjust the height position is arranged, and the supporting frame and the strut are connected with the bearing suspension beam; the lower end of the bearing suspension beam is equidistantly provided with the threaded suspension rods sleeved in the arc-shaped support, and the arc-shaped support is sleeved with the threaded suspension rods, so that the horizontal stability of the bearing suspension beam is maintained; the bridge deck is centered and limited by the limiting frame, so that the stability and the bearing performance of the bridge deck are guaranteed.
Description
Technical Field
The invention relates to the technical field of construction of municipal road bridges, in particular to a construction structure of a simply supported beam of a municipal road bridge.
Background
The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. With the development of the times, in order to adapt to the modern high-speed developed traffic industry, bridges can be extended to be buildings which span mountain stream, unfavorable geology or meet other traffic needs and are erected to enable traffic to be more convenient. The structure is characterized by comprising an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge structure and is a main structure for crossing obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structure is bridge end butt plate, conic slope protection, bank protection and flow guide engineering. Due to the continuous change of the traffic transportation demand, the construction strength of bridge infrastructures in recent years is continuously increased.
The cognitive influence of the traditional bridge structure enables the characteristics of a plurality of traditional bridge structures to be maintained in the simply supported beam of the bridge manufactured at present, but the traditional bridge structures have certain limitations due to the development of the transportation day by day:
firstly, the piers of some existing bridges are still fixed by being directly installed on the ground, but the piers are used as direct parts contacting with the ground, so that the piers not only need to bear the weight of a bridge deck, but also need to bear the weight burden of pedestrians passing through the bridge deck;
secondly, the beam slab is mostly of a hollow structure, the span of a single simply supported beam slab is small under normal conditions, and the bearing capacity of the beam slab is prevented from being influenced, so that the beam slab with a large span needs to be reinforced by arranging a proper support structure, but the beam slab with the large span lacks of enough fulcrums, and the stability of installation and arrangement of the beam slab is difficult to guarantee;
thirdly, the mode that current bridge structures adopted and pier fixed connection more to the bridge floor, but the bridge can produce the vibrations of certain range because receiving the influence of a plurality of exogenic actions at the in-process that provides the transportation ability, and traditional bridge structures lack supporting counter-measure for the whole extremely easily causes the destruction to the structure because the atress is too big, especially the tie point position between bridge floor and the pier, extremely easily leads to further influencing bridge structures's stability and security.
Disclosure of Invention
The invention aims to solve the problem that stable support is difficult to provide for a municipal road bridge in the prior art, and provides a construction structure of a simple beam of the municipal road bridge.
In order to achieve the purpose, the invention adopts the following technical scheme:
a municipal road bridge simply supported beam construction structure comprises two adjacent floor bases, wherein the upper ends of the two floor bases are provided with clamping grooves, supporting columns are fixedly sleeved in the clamping grooves, and limiting flanges abutted against the floor bases are fixedly sleeved on the supporting columns;
the support is characterized in that a vertical hole and a piston cavity which are communicated with each other are respectively formed in the support, a strong supporting rod is slidably sleeved in the vertical hole, a piston is fixedly connected to the lower end of the strong supporting rod, a bearing suspension beam and a strong spring which are connected with each other are respectively sleeved at the upper end of the strong supporting rod, a groove is formed in the support, a guide rod is fixedly installed in the groove, a support frame connected with the support and the bearing suspension beam is movably sleeved on the guide rod, an arc-shaped support is fixedly connected to the support frame, four threaded hanging rods sleeved in the arc-shaped support are welded at the lower end of the bearing suspension beam, and a wedge-shaped fixture block and a locking nut are sleeved on each of the four threaded hanging rods;
the bearing suspension beam is characterized in that the upper end of the bearing suspension beam is fixedly connected with an installation column and a limiting frame respectively, the installation column and the limiting frame are connected with a bridge floor together, and a limiting hole for sleeving the limiting frame is formed in the bridge floor.
Preferably, the limiting flange is positioned at the lower end of the support column, and a first-level screw connected with the floor base is installed in the limiting flange.
Preferably, the vertical holes with the upper end openings are positioned in two sides of the upper end of the support column, and the piston cavities connected with the lower end openings of the vertical holes are positioned in the lower end of the support column.
Preferably, the piston is located in the piston cavity, the bearing suspension beam and the strong spring are movably sleeved at the upper end of the strong supporting rod from top to bottom, and the lower end of the strong spring is welded with the upper end of the strut.
Preferably, the upper end of the strong supporting rod penetrating through the bearing suspension beam is of a T-shaped structure, and a secondary screw is arranged between the upper end of the strong supporting rod and the bearing suspension beam.
Preferably, a third-level screw is installed between the lower end of the support frame and the strut, and a fourth-level screw is installed between the upper end of the support frame and the bearing suspension beam.
Preferably, the arc-shaped support is horizontally arranged under the load-bearing suspension beam, and the four threaded suspenders are equidistantly distributed between the load-bearing suspension beam and the arc-shaped support.
Preferably, the wedge-shaped fixture block and the locking nut are located on the lower end, penetrating through the arc-shaped support, of the threaded suspender from top to bottom, and the wedge-shaped fixture block is movably abutted to the arc-shaped support.
Preferably, the erection column is located the bridge floor lower extreme, and spacing is located the bridge floor both sides, install five grades of screws between spacing and the bridge floor.
Compared with the prior art, the invention has the following advantages:
1. the invention is characterized in that a hollow-structure pillar is fixedly arranged in a floor base with an opening at the upper end, a strong supporting rod movably supported by a piston and a strong spring is sleeved in the pillar, and a horizontally arranged bearing suspension beam is supported by the strong supporting rod; the supporting frame which is sleeved on the upper side wall of the strut and can adjust the height position is arranged, and the supporting frame is connected with the strut and the bearing suspension beam, so that the horizontal stability of the bearing suspension beam is ensured.
2. The invention fixedly connects the arc-shaped supports between two adjacent support frames, and the lower ends of the bearing suspension beams are equidistantly provided with the threaded suspension rods sleeved in the arc-shaped supports, and the horizontal stability of the bearing suspension beams is maintained through the threaded suspension rods on the arc-shaped supports.
3. The invention arranges the mounting columns for supporting the bridge deck on the load-bearing suspension beam at equal intervals, and arranges the limiting frames positioned at two sides of the bridge deck on two sides of the load-bearing suspension beam, so that the limiting frames are fixedly sleeved in the limiting holes at two sides of the bridge deck to stably limit and mount the horizontally laid bridge deck.
In conclusion, the invention arranges the pillar with the vertical hole and the piston cavity in the adjacent landing base, arranges the piston and the strong supporting rod in the vertical hole and the piston cavity in an integrated structure, and supports the horizontally arranged bearing suspension beam by the strong supporting rod; the supporting frame which is sleeved on the upper side wall of the strut and can adjust the height position is arranged, and the supporting frame and the strut are connected with the bearing suspension beam; the lower end of the bearing suspension beam is equidistantly provided with the threaded suspension rods sleeved in the arc-shaped support, and the arc-shaped support is sleeved with the threaded suspension rods, so that the horizontal stability of the bearing suspension beam is maintained; the bridge deck is centered and limited by the limiting frame, so that the stability and the bearing performance of the bridge deck are guaranteed.
Drawings
FIG. 1 is a schematic structural view of a simply supported beam construction structure of a municipal road bridge according to the invention;
FIG. 2 is an enlarged schematic view of a part A of the construction structure of the simply supported beam of the municipal road bridge, which is provided by the invention;
FIG. 3 is an enlarged schematic view of a part B of the construction structure of the simply supported beam of the municipal road bridge, which is provided by the invention;
FIG. 4 is a schematic view of a connection structure of a strut and a limiting flange of the construction structure of the simply supported beam of the municipal road bridge provided by the invention;
FIG. 5 is a schematic view of a support frame structure of a simply supported beam construction structure of a municipal road bridge according to the invention;
FIG. 6 is a load-bearing cantilever beam of a municipal road bridge simple-supported beam construction structure proposed by the present invention;
FIG. 7 is a schematic structural view of a limiting frame of the simply supported beam construction structure for the municipal road bridge.
In the figure: the device comprises a floor base 1, a clamping groove 2, a support 3, a limiting flange 4, a first-level screw 5, a vertical hole 6, a piston cavity 7, a strong supporting rod 8, a piston 9, a bearing suspension beam 10, a strong spring 11, a second-level screw 12, a groove 13, a guide rod 14, a support frame 15, a third-level screw 16, a fourth-level screw 17, an arc-shaped support 18, a threaded suspension rod 19, a wedge-shaped fixture block 20, a locking nut 21, a mounting column 22, a limiting frame 23, a bridge deck 24, a limiting hole 25 and a fifth-level screw 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, the construction structure of the simply supported beam of the municipal road bridge comprises two adjacent floor bases 1, wherein the upper ends of the two floor bases 1 are respectively provided with a clamping groove 2, a strut 3 is fixedly sleeved in the clamping groove 2, and a limiting flange 4 which is abutted against the floor bases 1 is fixedly sleeved on the strut 3;
it should be noted that:
firstly, a square pit with a distance of 20-25m is dug in the ground, the depth of the square pit is ensured to be 5-7m, and a reinforced concrete structure is built in the square pit to pre-embed and fix the floor base 1 and ensure the firmness of the connection between the floor base 1 and the ground;
secondly, the pillar 3 is sleeved on the floor base 1, and after the limiting flange 4 and the floor base 1 are fixed and locked, the lower end of the pillar 3 can be further reinforced by paving a concrete structure with the depth of 0.5-1 m.
Specifically, referring to the attached figure 4 of the specification, vertical holes 6 and piston cavities 7 communicated with each other are respectively formed in a strut 3, 2 to 3 vertical holes 6 on the same side of the strut 3 can be arranged, so that two bearing suspension beams 10 can be erected on the same strut 3, a strong support rod 8 is slidably sleeved in each vertical hole 6, a piston 9 is fixedly connected to the lower end of each strong support rod 8, it should be noted that the piston 9 is made of wear-resistant flexible silica gel, the piston 9 can move up and down in the piston cavity 7 to provide a guiding and supporting effect for the strong support rod 8 which can move up and down in a telescopic manner, the upper end of each strong support rod 8 is respectively sleeved with a bearing suspension beam 10 and a strong spring 11 which are connected, specifically referring to the attached figure 6 of the specification, both ends of each bearing suspension beam 10 are connected with extension plates which are respectively located at the upper and lower positions on both ends of the bearing suspension beams 10, so that two adjacent bearing suspension beams 10 are connected on the same strut 3 in an anastomotic manner, the support 3 is provided with a groove 13, a guide rod 14 is fixedly arranged in the groove 13, the guide rod 14 is vertically arranged and can provide a guide limiting effect for a support frame 15 which can be adjusted in an up-and-down movement mode, the guide rod 14 is movably sleeved with the support frame 15 connected with the support 3 and a bearing suspension beam 10, the support frame 15 is fixedly connected with an arc-shaped support 18, the arc-shaped support 18 is made of alloy steel with excellent toughness, the arc-shaped support can be subjected to bending deformation according to the set length and height of the bearing suspension beam 10, the lower end of the bearing suspension beam 10 is welded with four threaded suspension rods 19 sleeved in the arc-shaped support 18, the four threaded suspension rods 19 are all sleeved with wedge-shaped fixture blocks 20 and locking nuts 21, and the lower end of each threaded suspension rod 19 is of a threaded structure, so that the arc-shaped support 18 can be locked and fixed by the locking nuts 21 at the lower end of the threaded suspension rod 19;
the upper end of the bearing suspension beam 10 is fixedly connected with a mounting column 22 and a limiting frame 23 respectively, it should be noted that the mounting column 22 is vertically positioned on the bearing suspension beam 10 by adopting a reinforced concrete structure, the limiting frame 23 is obliquely connected on the bearing suspension beam 10 by adopting a bolt connection mode, the mounting column 22 and the limiting frame 23 are jointly connected with a bridge deck 24, a limiting hole 25 for sleeving the limiting frame 23 is formed in the bridge deck 24, the limiting hole 25 is obliquely formed, so that the limiting frame 23 is matched and clamped in the limiting hole 25 in the vertical downward moving process of the bridge deck 24.
Limiting flange 4 is located 3 lower extremes of pillar, and installs in the limiting flange 4 with fall to the ground the one-level screw 5 that base 1 is connected, and the one-level screw 5 that utilizes circumference equidistance to distribute can lock fixedly to the pillar 3 that the cover was located in draw-in groove 2 to guarantee the fastness and the stability of the two connections.
The vertical hole 6 with the opening at the upper end is positioned in the two sides of the upper end of the pillar 3, the piston cavity 7 connected with the opening at the lower end of the vertical hole 6 is positioned in the lower end of the pillar 3, and the piston 9 can move up and down in the piston cavity 7 under the driving action of the strong supporting rod 8 so as to maintain the stability of the up and down movement of the strong supporting rod 8 and the bearing suspension beam 10.
The piston 9 is positioned in the piston cavity 7, the bearing suspension beam 10 and the strong spring 11 are movably sleeved at the upper end of the strong supporting rod 8 from top to bottom, and the lower end of the strong spring 11 is welded with the upper end of the pillar 3 to provide a support with a buffering effect for the strong supporting rod 8 and the bearing suspension beam 10 which move up and down.
The upper end of the strong supporting rod 8 penetrating through the bearing suspension beam 10 is of a T-shaped structure, a second-level screw 12 is arranged between the upper end of the strong supporting rod 8 and the bearing suspension beam 10, and it should be noted that blind holes sleeved with the strong supporting rod 8 are formed in the two ends of the bearing suspension beam 10 so as to lock and fix the upper end of the strong supporting rod 8 in the upper end of the bearing suspension beam 10.
Install tertiary screw 16 between support frame 15 lower extreme and the pillar 3, and install level four screw 17 between support frame 15 upper end and the bearing suspension beam 10 to further increase the stability of being connected of pillar 3 and bearing suspension beam 10, avoid the mutual slope of the two.
The arc-shaped support 18 is horizontally arranged under the load-bearing suspension beam 10, the four threaded suspenders 19 are equidistantly distributed between the load-bearing suspension beam 10 and the arc-shaped support 18, and the threaded suspenders 18 which are equidistantly distributed in a straight line can provide further limiting support for the load-bearing suspension beam 10.
The wedge-shaped fixture block 20 and the locking nut 21 are positioned on the lower end of the threaded suspender 19 penetrating through the arc-shaped support 18 from top to bottom, the wedge-shaped fixture block 20 is movably abutted against the arc-shaped support 18, the connection inosculation with the arc-shaped support 18 can be enhanced by utilizing the wedge-shaped fixture block 20, and the elastic deformation of the arc-shaped support 18 caused by uneven stress is avoided.
The mounting column 22 is located the lower extreme of bridge floor 24, and the spacing 23 is located bridge floor 24 both sides, installs five grades of screws 26 between spacing 23 and the bridge floor 24 to carry on spacingly to the bridge floor 24.
The invention can be illustrated by the following operating modes:
pre-burying the landing base 1 in the ground;
the pillar 3 is sleeved in the clamping groove 2 until the limiting flange 4 abuts against the upper end of the floor base 1, and primary screws 5 are equidistantly arranged on the limiting flange 4 so as to lock and fix the pillar 3 on the floor base 1;
a strong supporting rod 8 connected with a piston 9 is sleeved in the two vertical holes 6 in the same side, and a bearing suspension beam 10 and a strong spring 11 which are connected are sleeved at the upper end of the strong supporting rod 8;
the lower end of the load-bearing suspension beam 10 is fixedly connected with a vertically arranged threaded suspender 19, the lower end of the threaded suspender 19 penetrates through the arc-shaped support 18, the lower end of the threaded suspender 19 is sleeved with a wedge-shaped fixture block 20 abutted against the arc-shaped support 18, and a locking nut 21 is screwed on the threaded suspender 19 so as to lock and fix the arc-shaped support 18 on the threaded suspender 19;
in the process, the bearing suspension beam 10 moves downwards, so that the strong spring 11 is stressed to contract, and the secondary screw 12 is screwed at the upper end of the strong support rod 8 to fix the bearing suspension beam 10 on the strong support rod 8;
a support frame 15 is moved up and down on a guide rod 14, so that the lower end of the support frame 15 is abutted against the pillar 3, meanwhile, the upper end of the support frame 15 is abutted against the lower end of the load-bearing suspension beam 10, a third-level screw 16 abutted against the pillar 3 is screwed at the lower end of the support frame 15, and a fourth-level screw 17 abutted against the load-bearing suspension beam 10 is screwed at the upper end of the support frame 15;
a bridge deck 24 is horizontally laid on the mounting column 22, the upper ends of the limiting frames 23 are clamped in limiting holes 25 in two sides of the bridge deck 24 in a clamping mode, and five-stage screws 26 are screwed on the limiting frames 23 to achieve fixed connection of the limiting frames 23 and the bridge deck 24.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A municipal road bridge simply supported beam construction structure comprises two adjacent floor bases (1), and is characterized in that the upper ends of the two floor bases (1) are provided with clamping grooves (2), supporting columns (3) are fixedly sleeved in the clamping grooves (2), and limiting flanges (4) which are abutted against the floor bases (1) are fixedly sleeved on the supporting columns (3);
the pillar (3) is respectively provided with a vertical hole (6) and a piston cavity (7) which are communicated with each other, a strong supporting rod (8) is slidably sleeved in the vertical hole (6), the lower end of the strong supporting rod (8) is fixedly connected with a piston (9), the upper end of the strong supporting rod (8) is respectively sleeved with a bearing suspension beam (10) and a strong spring (11) which are connected, the supporting column (3) is provided with a groove (13), a guide rod (14) is fixedly arranged in the groove (13), a support frame (15) connected with the pillar (3) and the bearing suspension beam (10) is movably sleeved on the guide rod (14), an arc-shaped support (18) is fixedly connected on the support frame (15), the lower end of the bearing suspension beam (10) is welded with four threaded suspension rods (19) sleeved in the arc-shaped support (18), and wedge-shaped clamping blocks (20) and locking nuts (21) are sleeved on the four threaded suspension rods (19);
the upper end of the bearing suspension beam (10) is fixedly connected with a mounting column (22) and a limiting frame (23) respectively, the mounting column (22) and the limiting frame (23) are connected with a bridge deck (24) together, and the bridge deck (24) is provided with a limiting hole (25) sleeved with the limiting frame (23);
the piston (9) is positioned in the piston cavity (7), the bearing suspension beam (10) and the strong spring (11) are movably sleeved at the upper end of the strong supporting rod (8) from top to bottom, and the lower end of the strong spring (11) is welded with the upper end of the strut (3); the upper end of the strong supporting rod (8) penetrating through the bearing suspension beam (10) is of a T-shaped structure, and a secondary screw (12) is arranged between the upper end of the strong supporting rod (8) and the bearing suspension beam (10); a third-level screw (16) is arranged between the lower end of the support frame (15) and the strut (3), and a fourth-level screw (17) is arranged between the upper end of the support frame (15) and the bearing suspension beam (10); the arc-shaped support (18) is horizontally arranged under the load-bearing suspension beam (10), and the four threaded suspension rods (19) are equidistantly distributed between the load-bearing suspension beam (10) and the arc-shaped support (18).
2. The municipal road bridge simple beam construction structure according to claim 1, wherein the limit flange (4) is located at the lower end of the strut (3), and a first-level screw (5) connected with the floor base (1) is installed in the limit flange (4).
3. The municipal road bridge simple beam construction structure according to claim 2, wherein vertical holes (6) with open upper ends are provided in both sides of the upper end of the strut (3), and piston chambers (7) connected to the lower end openings of the vertical holes (6) are provided in the lower end of the strut (3).
4. The municipal road bridge simple beam construction structure according to claim 1, wherein the wedge-shaped fixture block (20) and the locking nut (21) are located on the lower end of the threaded suspender (19) penetrating through the arc-shaped bracket (18) from top to bottom, and the wedge-shaped fixture block (20) is movably abutted against the arc-shaped bracket (18).
5. The municipal road bridge simple beam construction structure according to claim 1, wherein the mounting columns (22) are located at the lower end of the deck (24), the limiting frames (23) are located on two sides of the deck (24), and five-level screws (26) are mounted between the limiting frames (23) and the deck (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010882051.7A CN111996919B (en) | 2020-08-28 | 2020-08-28 | Town road bridge simple beam construction structures |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010882051.7A CN111996919B (en) | 2020-08-28 | 2020-08-28 | Town road bridge simple beam construction structures |
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| CN111996919A CN111996919A (en) | 2020-11-27 |
| CN111996919B true CN111996919B (en) | 2021-11-05 |
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| CN202010882051.7A Active CN111996919B (en) | 2020-08-28 | 2020-08-28 | Town road bridge simple beam construction structures |
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| CN112962463B (en) * | 2021-02-08 | 2023-07-21 | 湖北三峡路桥工程有限公司 | Construction equipment of municipal administration overhead road and bridge anticollision wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3260609B2 (en) * | 1995-11-13 | 2002-02-25 | 大阪ベンダー工業株式会社 | Bridge viaduct reinforcement structure |
| CN207032056U (en) * | 2017-07-29 | 2018-02-23 | 吴昊 | A kind of bridge construction support meanss |
| CN109137760A (en) * | 2018-09-28 | 2019-01-04 | 广西大学 | The active reinforcement means of multispan normal reinforced concrete beam bridge |
| CN209703333U (en) * | 2019-03-06 | 2019-11-29 | 沈阳市政工程设计研究院有限公司 | A kind of Cantilever Bridges limiting device of the lossless installation of bridge pier |
| CN210827152U (en) * | 2019-04-19 | 2020-06-23 | 广东胜固建筑有限公司 | Bridge reinforced structure |
| CN210827085U (en) * | 2019-09-29 | 2020-06-23 | 成都市路桥工程股份有限公司 | Prefabricated bridge that contains bridge floor stop device |
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