CN113073540A - Pile-beam integrated fully-prefabricated assembled bridge substructure, bridge and construction method thereof - Google Patents
Pile-beam integrated fully-prefabricated assembled bridge substructure, bridge and construction method thereof Download PDFInfo
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- CN113073540A CN113073540A CN202110329726.XA CN202110329726A CN113073540A CN 113073540 A CN113073540 A CN 113073540A CN 202110329726 A CN202110329726 A CN 202110329726A CN 113073540 A CN113073540 A CN 113073540A
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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
- E01D19/00—Structural or constructional details of bridges
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/067—Flat continuous joints cast in situ
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a pile-beam integrated full-prefabricated assembled bridge lower structure, a bridge and a construction method thereof. The invention adopts the full-prefabricated assembly concept, and can realize the integrated installation of the precast concrete tubular pile column, the capping beam and the main beam. The construction method is simple to operate, convenient to construct, safe and reliable, can accelerate construction progress, reduces construction cost, can utilize the existing road transportation pipe pile, does not need to set up a construction access road and a construction access bridge, saves space occupation, has good adaptability to areas with high construction environment requirements, and can realize full-prefabricated industrial construction and rapid construction in environments with multiple construction conditions and no access road and access bridge erection, and urban areas with busy traffic.
Description
Technical Field
The invention belongs to the technology of prefabrication and assembly of highways and municipal bridges, and particularly relates to a pile-beam integrated bridge substructure, a bridge comprising the pile-beam integrated bridge substructure and a construction method of the bridge.
Background
Along with the rapid development of the economy of China in the years, the industrialized construction and the rapid construction of bridges gradually become the development direction of the construction industry, and the construction method is particularly obvious in areas with dense urban population or crossing roads with busy traffic and the like. However, the construction of the traditional bridge cannot meet the requirement of rapid construction, and the reason for the construction is that most of the traditional bridge adopts a pier column type lower part, is connected with an upper structure through a bent cap and adopts a cast-in-place construction method, and the following problems exist in the construction process: 1. the quantity of field labor force is large, the method is not suitable for the development trend of an aging society, and the safety risk of field personnel exists; 2. the field process is more, the material consumption is more, and the resource waste is caused; 3. the cast-in-place quality is difficult to ensure; 4. the construction waste is much, the environment is easily polluted, and traffic jam is easily caused; 5. the construction temporary floor area is large, and temporary access roads, temporary access bridges and the like are required to be built sometimes.
On the premise of ensuring the engineering quality, the on-site concrete pouring engineering quantity is reduced as much as possible, the construction occupied area and the construction period are effectively reduced, and the bridge construction is more environment-friendly, less in interference, safer, high in quality and low in consumption, so that the technical problem to be solved urgently in the industry at present is solved. Therefore, a new bridge structure using industrial construction and rapid construction technology is urgently sought.
Disclosure of Invention
The invention aims to provide a pile-beam integrated fully-prefabricated assembled bridge substructure which can reduce construction cost, accelerate construction progress, improve construction quality and increase land utilization.
The first purpose of the invention is realized by the following technical scheme: the utility model provides a bridge substructure is assembled in full prefabrication of stake roof beam integration, it includes bent cap and pier stud, the bent cap is along the setting of horizontal bridge, the pier stud is the precast concrete tubular pile post that concreting made in precast concrete tubular pile's stake core, the lower extreme of precast concrete tubular pile post is fixed in the ground, its upper end with the connected node of bent cap with precast concrete tubular pile post is for once only concreting and forms for precast concrete tubular pile post and bent cap link as an organic wholely.
The invention adopts the full-prefabricated assembly concept, and can realize the integrated installation of the precast concrete tubular pile column, the capping beam and the main beam. The connection mode of the precast concrete tubular pile and the bent cap has the advantages of simple operation, convenient construction, safety and reliability, can accelerate the construction progress, reduce the construction cost, utilize the existing road to transport the tubular pile, avoid building construction roads and construction bridges, save the occupied space, have good adaptability to areas with high construction environment requirements, can realize full-precast industrialized construction and rapid construction in the environment with more construction conditions and no erection of roads and bridges, and can also realize full-precast industrialized construction in urban areas with busy traffic, thereby greatly shortening the construction period. In addition, the pier column is a precast concrete tubular pile formed by pouring concrete in a pile core of the precast concrete tubular pile, the precast concrete tubular pile used by the precast concrete tubular pile is a mass-production and standardized component, tubular piles of different models can be selected according to axial pressure borne by the pile in actual engineering, the length of the tubular pile can be cut out from the produced tubular pile according to actual conditions, and the tubular pile in the current market can be produced in batches and has low unit price, so that the cost can be reduced, the mass production is realized, and the standardization degree of the use of assembled components is improved.
As a preferred embodiment of the invention, a vertically-penetrating hole is reserved on the bent cap, a temporary steel hoop is sleeved at the upper end of the precast concrete tubular pile, the bent cap is installed through the temporary supporting function and the positioning function of the steel hoop, a reinforcement cage is inserted into the reserved hole on the bent cap and extends into the precast concrete tubular pile, and then core filling concrete is poured into the reserved hole to form a connecting node of the precast concrete tubular pile column and the bent cap.
In a preferred embodiment of the present invention, the capping beam is prefabricated in sections, and the wet joints between adjacent prefabricated sections are connected by cast-in-place concrete to integrally connect the prefabricated sections.
As a recommended embodiment of the invention, the connecting node between the precast concrete tubular pile column and the capping beam is poured by adopting ultra-high performance concrete, so that the maintenance time is effectively shortened, and the rapid construction is realized.
As a preferred embodiment of the present invention, the wet joints between adjacent prefabricated sections of the capping beam are cast using ultra-high performance concrete.
The second purpose of the invention is to provide a bridge comprising the pile-beam integrated fully-prefabricated assembled bridge substructure.
The second purpose of the invention is realized by the following technical scheme: the utility model provides a bridge that contains above-mentioned full prefabrication of stake roof beam integration and assembles bridge substructure, it include superstructure with the bridge substructure is assembled in the full prefabrication of stake roof beam integration, superstructure includes girder, support and bridge floor, the girder is along setting up along the bridge direction, the bridge floor paves on the girder, the support is located the girder with between the bent cap of substructure.
The third purpose of the invention is to provide a construction method of the bridge.
The third purpose of the invention is realized by the following technical scheme: the construction method of the bridge comprises the following steps:
(1) prefabricating a cover beam, reserving a vertically penetrating hole on the cover beam, and transporting the prefabricated cover beam to a construction site;
(2) transporting the precast concrete pipe pile to a construction site, and installing the precast concrete pipe pile at a pile position;
(3) arranging a temporary steel hoop at the upper end of the precast concrete pipe pile, hoisting the bent cap to an installation position, and temporarily supporting the bent cap by the steel hoop;
(4) placing a reinforcement cage down from a hole reserved in the cover beam, and pouring the precast concrete tubular pile column and a connecting node between the precast concrete tubular pile column and the cover beam at one time;
(5) arranging a support on the bent cap and erecting a main beam;
(6) and (5) spanning, repeating the steps (1) to (5) and completing the construction of the whole bridge main body.
In the step (1), the cover beam is prefabricated in sections; in the step (4), concrete is poured into the wet joints between the adjacent prefabricated segments to integrally connect the prefabricated segments.
In the step (5), firstly, a girder is erected in the midspan of the bridge, and then the girder is erected in the manner of transversely moving to two sides of the midspan.
In the step (2), the precast concrete tubular piles are installed at the pile positions through the integrated bridge girder erection machine, so that the installation of the complete structures of the foundation and the upper part and the lower part is realized, the integrated bridge girder erection machine comprises a main girder assembly, a crown block, a front supporting leg, a middle supporting leg, a rear supporting leg, a pile driving frame and an electric control system, the crown block is movably installed on the main girder assembly, the front supporting leg, the middle supporting leg and the rear supporting leg are sequentially arranged on the bottom of the main girder assembly to support the main girder assembly, and the pile driving frame is arranged on the main girder assembly.
Compared with the prior art, the invention has the following remarkable effects:
(1) the invention adopts the pile-beam integrated bridge girder erection machine, integrates the functions of piling, pier mounting, girder erection and the like, and realizes the integrated installation of the precast concrete tubular pile, the capping beam and the main beam. The prestressed concrete pipe pile is generally constructed by adopting a hammering method, the integrated bridge girder erection machine is provided with hole guiding equipment, when unfavorable geology such as a hard interlayer, a thick pebble layer and the like is encountered, a pipe pile can be driven after the hole guiding equipment is used, and the prestressed concrete pipe pile has strong geological adaptability.
(2) The connection mode of the precast concrete tubular pile and the bent cap has the advantages of simple operation, convenient construction, safety and reliability, can accelerate the construction progress, reduce the construction cost, utilize the existing road to transport the tubular pile, avoid building construction roads and construction bridges, save the occupied space, have good adaptability to areas with high construction environment requirements, can realize the full-precast industrialized construction and the quick construction in the environment with more construction conditions and no erection of the roads and bridges, and can also realize the quick construction in urban areas with busy traffic, thereby greatly shortening the construction period.
(3) The pier column is a precast concrete tubular pile formed by pouring concrete in a pile core of the precast concrete tubular pile, the precast concrete tubular pile used by the precast concrete tubular pile is a mass-production and standardized component, tubular piles of different models can be selected according to axial pressure borne by the pile in actual engineering, and the length of the tubular pile can be cut out from the produced tubular pile according to actual conditions.
(4) The invention adopts the ultra-high performance concrete material for the wet joint and the connection of the tubular pile-bent cap beam node, shortens the maintenance time, effectively improves the construction efficiency, and has particularly remarkable advantages for the projects with limited construction site and tight construction period.
Drawings
The invention is described in further detail below with reference to the figures and the specific embodiments.
FIG. 1 is a schematic elevation view of the present invention;
FIG. 2 is one of the schematic views of the construction process of the present invention;
FIG. 3 is a second schematic view of the construction process of the present invention;
FIG. 4 is a third schematic view of the construction process of the present invention;
FIG. 5 is a fourth schematic view of the construction process of the present invention.
Detailed Description
As shown in fig. 1, the pile-beam integrated fully-prefabricated assembled bridge substructure of the present invention comprises a capping beam 1 and a pier stud, wherein the capping beam 1 is arranged along a transverse direction of a bridge, the pier stud is a precast concrete tubular pile 2 formed by pouring concrete in a pile core of a precast concrete tubular pile, the lower end of the precast concrete tubular pile 2 is fixed in a foundation, and the upper end of the precast concrete tubular pile 2 is formed by pouring concrete at one time with a connecting node 3 of the capping beam 1 and the precast concrete tubular pile 2, such that the precast concrete tubular pile 2 and the capping beam 1 are connected into a whole.
Specifically, a vertical through hole is reserved in the cover beam 1, a temporary steel hoop 18 is sleeved at the upper end of the precast concrete tubular pile, the cover beam 1 is installed through the temporary supporting function and the positioning function of the steel hoop 18, a reinforcement cage is inserted into the reserved hole and extends into the precast concrete tubular pile, and then the connecting node 3 of the precast concrete tubular pile 2 and the cover beam 1 is formed by pouring ultrahigh-performance concrete into the reserved hole. The capping beam 1 is prefabricated in sections, and wet joints 4 between adjacent prefabricated sections are connected through cast-in-place ultra-high performance concrete so that the prefabricated sections are connected into a whole.
The utility model provides a bridge that contains above-mentioned bridge substructure is assembled in full prefabrication of stake roof beam integration, it includes superstructure and the bridge substructure is assembled in full prefabrication of stake roof beam integration, superstructure includes girder 5, support 6 and bridge floor 7, girder 5 is along setting up along the bridge direction, girder 5 is two T girder construction, also can be other structural style, adopts the prefabricated construction of assembling, bridge floor 7 mats formation on girder 5, support 6 is located between girder 5 and substructure's bent cap 1.
As shown in fig. 2, a pile-beam integrated bridge girder erection machine for realizing the integrated installation of the bridge is composed of a main girder assembly 11, a crown block 12, a front supporting leg 13, a middle supporting leg 14, a rear supporting leg 15, a pile driving frame 16, a measuring system, an electrical system, a hydraulic system, a power system and the like, wherein the crown block 12 is movably installed on the main girder assembly 11, the front supporting leg 13, the middle supporting leg 14 and the rear supporting leg 15 are sequentially arranged at the bottom of the main girder assembly 11, the pile driving frame 16 is arranged on the main girder assembly 11, and the pile-beam integrated bridge girder erection machine can realize the driving of a precast concrete pipe pile 8, the installation of a precast cover beam 1 and the whole-process integrated construction of an upper structure including a main girder 5, a support 6 and a.
As shown in fig. 2 to 5, the construction method of the bridge comprising the pile-beam integrated fully-prefabricated assembled bridge substructure comprises the following steps:
(1) the bent cap 1 is prefabricated in sections, a hole which penetrates through the bent cap in the vertical direction is reserved in the bent cap 1, and the prefabricated bent cap 1 is transported to a construction site.
(2) Transporting the precast concrete tubular pile 8 to a construction site, transporting the precast concrete tubular pile 8 to a front pile position through a pile-beam integrated bridge girder erection machine, and adjusting a pile driving frame 16 to be in a vertical state, as shown in fig. 2; finely adjusting the verticality of the pile driving frame 16, and starting driving a first precast concrete pipe pile 8 to fix the lower end in the foundation 9, as shown in fig. 3; and (3) traversing the pile driving frame 16, and repeating the steps to finish the sinking of all the precast concrete pipe piles 8 connected with the same capping beam 1.
(3) The pile driving frame 16 retreats, an temporary steel hoop 18 is sleeved at the upper end of the precast concrete pipe pile 8, a rubber strip 10 is installed at the top of the temporary steel hoop 18, a main beam crane lifts the cover beam 1 to adjust and install the cover beam 1, and the temporary steel hoop 18 plays roles in positioning, adjusting posture and fixing the cover beam 1, which is shown in fig. 4.
(4) Hoisting a reinforcement cage from a hole reserved in the cover beam 1, wherein the reinforcement cage goes deep into the inner cavity of the precast concrete tubular pile 8, pouring an ultra-high performance concrete filler, namely pouring the precast concrete tubular pile 2 and the connecting node 3 of the precast concrete tubular pile and the cover beam 1 at one time, pouring a wet joint 4 of the cover beam, arranging a support 6 on the cover beam 1, erecting a main beam 5, namely erecting the main beam 5 in the midspan of the bridge girder erection machine, and transversely moving the bridge girder erection machine until the main beams on two sides of the midspan are erected, as shown in fig. 5.
(5) And (4) spanning, repeating the steps, and completing the construction of the whole bridge main body.
The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or changed in other various forms without departing from the basic technical idea of the present invention.
Claims (10)
1. The utility model provides a bridge substructure is assembled in full prefabrication of stake roof beam integration, it includes bent cap and pier stud, the bent cap is along horizontal bridge to setting up, its characterized in that: the pier stud is a precast concrete tubular pile column made by pouring concrete in a pile core of a precast concrete tubular pile, the lower end of the precast concrete tubular pile column is fixed in a foundation, and the upper end of the precast concrete tubular pile column is formed by pouring concrete at one time with the connecting node of the cover beam and the precast concrete tubular pile column, so that the precast concrete tubular pile column and the cover beam are connected into a whole.
2. The pile-beam integrated fully-prefabricated assembled bridge substructure of claim 1, wherein: the utility model discloses a prefabricated concrete pile, including bent cap, prefabricated concrete pile, bent cap, prefabricated concrete pile and bent cap, the prefabricated concrete pile is connected with the bent cap to the hole that reserves is poured core concrete formation again to the hole that reserves.
3. The pile-beam integrated fully-prefabricated assembled bridge substructure of claim 2, wherein: the capping beam is prefabricated in sections, and wet joints between adjacent prefabricated sections are connected through cast-in-place concrete so that the prefabricated sections are connected into a whole.
4. The pile-beam integrated fully-prefabricated assembled bridge substructure of claim 3, wherein: and the connecting node between the precast concrete tubular pile column and the cover beam is poured by adopting ultra-high performance concrete.
5. The pile-beam integrated fully-prefabricated assembled bridge substructure of claim 4, wherein: and pouring wet joints between adjacent prefabricated sections of the bent cap by adopting ultra-high performance concrete.
6. A bridge comprising the pile-beam integrated fully-prefabricated assembled bridge substructure of any one of claims 1 to 5, wherein: it includes superstructure with the bridge substructure is assembled in full prefabrication of stake roof beam integration, superstructure includes girder, support and bridge floor, the girder is along setting up in the same direction as the bridge, the bridge floor paves on the girder, the support is located the girder with between substructure's the bent cap.
7. A construction method of the bridge according to claim 6, characterized by comprising the steps of:
(1) prefabricating a cover beam, reserving a vertically penetrating hole on the cover beam, and transporting the prefabricated cover beam to a construction site;
(2) transporting the precast concrete pipe pile to a construction site, and installing the precast concrete pipe pile at a pile position;
(3) arranging a temporary steel hoop at the upper end of the precast concrete pipe pile, hoisting the bent cap to an installation position, and temporarily supporting the bent cap by the steel hoop;
(4) placing a reinforcement cage down from a hole reserved in the cover beam, and pouring the precast concrete tubular pile column and a connecting node between the precast concrete tubular pile column and the cover beam at one time;
(5) arranging a support on the bent cap and erecting a main beam;
(6) and (5) spanning, repeating the steps (1) to (5) and completing the construction of the whole bridge main body.
8. The construction method according to claim 7, wherein: in the step (1), the cover beam is prefabricated in sections; in the step (4), concrete is poured into the wet joints between the adjacent prefabricated segments to integrally connect the prefabricated segments.
9. The construction method according to claim 8, wherein: in the step (5), firstly, erecting girders in the midspan of the bridge, and then transversely moving the girders to two sides of the midspan to erect the girders.
10. The construction method according to any one of claims 7 to 9, characterized in that: in step (2), install precast concrete tubular pile in stake position department through integration bridging machine, integration bridging machine includes girder assembly, overhead traveling crane, preceding landing leg, well landing leg, back landing leg, pile driver's frame and electrical system, the overhead traveling crane movable mounting is in on the girder assembly, preceding landing leg, well landing leg and back landing leg are located in proper order in order to support the girder assembly on the bottom of girder assembly, the pile driver sets up on the girder assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110329726.XA CN113073540A (en) | 2021-03-26 | 2021-03-26 | Pile-beam integrated fully-prefabricated assembled bridge substructure, bridge and construction method thereof |
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| CN202110329726.XA CN113073540A (en) | 2021-03-26 | 2021-03-26 | Pile-beam integrated fully-prefabricated assembled bridge substructure, bridge and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016395A (en) * | 2021-11-01 | 2022-02-08 | 安徽省交通规划设计研究总院股份有限公司 | Rapid building system and construction method for bridge substructure |
| CN117344636A (en) * | 2023-09-26 | 2024-01-05 | 广东省高速公路有限公司 | Pile-beam integrated construction method for tubular pile foundation construction and capping beam-beam plate assembly |
-
2021
- 2021-03-26 CN CN202110329726.XA patent/CN113073540A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016395A (en) * | 2021-11-01 | 2022-02-08 | 安徽省交通规划设计研究总院股份有限公司 | Rapid building system and construction method for bridge substructure |
| CN117344636A (en) * | 2023-09-26 | 2024-01-05 | 广东省高速公路有限公司 | Pile-beam integrated construction method for tubular pile foundation construction and capping beam-beam plate assembly |
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