CN112281625A - Fabricated construction trestle and construction method thereof - Google Patents
Fabricated construction trestle and construction method thereof Download PDFInfo
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- CN112281625A CN112281625A CN202011365285.0A CN202011365285A CN112281625A CN 112281625 A CN112281625 A CN 112281625A CN 202011365285 A CN202011365285 A CN 202011365285A CN 112281625 A CN112281625 A CN 112281625A
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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
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey 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
- E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention provides an assembled construction trestle and a construction method thereof, wherein the assembled construction trestle comprises an anchoring beam and a trestle support, the anchoring beam is fixedly arranged on poured concrete, the trestle support is detachably arranged on a cantilever beam, the anchoring beam and the trestle support are arranged in parallel, the anchoring beam and the trestle support are matched for supporting a trestle main body, the trestle main body comprises at least two main beams which are arranged in parallel, the two main beams are fixedly connected through a connecting beam, the cantilever beam is positioned below the anchoring beam, and one side of the cantilever beam is connected with a template support structure. The concrete coping pier is simple in structure, convenient to assemble and disassemble, convenient to install, high in service performance, capable of greatly improving construction efficiency, convenient to transport and capable of being widely applied to the field of manufacturing and construction methods of concrete coping or piers.
Description
Technical Field
The invention relates to the technical field of manufacturing and construction of concrete bent caps or abutments, in particular to an assembled construction trestle and a construction method thereof.
Background
With the vigorous promotion of national infrastructure, as many as 83.2 thousands of highway bridges have been built in our country in 2017, the highway bridges become the first major bridge countries in the world, and the bridge construction and construction technology in our country is gradually mature, so that a set of rapid bridge construction technology, namely prefabricated splicing technology, is formed. The prefabrication and assembly technology adopts factory production and field assembly, and the rapid construction of the bridge is realized to the greatest extent.
In the existing foundation engineering construction of China, the temporary structure assembly type structure is used less, a construction site is provided with more local materials, the safety is poor, the construction is complicated, and the construction efficiency is low.
Chinese patent document CN 108625276 a describes an assembled steel and concrete composite beam trestle and a construction method, the method has a complicated scheme and structure, and has high requirements in the construction process; chinese patent document CN 103410084B describes an assembled steel trestle, which is mainly assembled and fixed by steel pipe columns and bailey beams, and the steel pipe columns are embedded in underwater soil, so that the overall construction is complicated and the use is limited, and therefore, the improvement is needed.
Disclosure of Invention
The invention mainly aims to provide an assembled construction trestle and a construction method thereof, and solves the problems of unstable trestle structure, trouble transportation, inconvenience in mounting and dismounting and low construction efficiency.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an assembled construction trestle comprises an anchoring beam and a trestle bracket, wherein the anchoring beam is fixedly arranged on poured concrete, the trestle bracket is detachably arranged on a cantilever beam, the anchoring beam and the trestle bracket are arranged in parallel, the anchoring beam and the trestle bracket are matched for supporting a trestle main body, the trestle main body comprises at least two main beams which are arranged in parallel, and the two main beams are connected and fixed through a connecting beam;
the cantilever beam is located anchor roof beam below, and cantilever beam one side is connected with template bearing structure.
In the preferred scheme, the tie-beam is including a plurality of major beams and a plurality of little minor beam of even setting, and major beam both ends are equipped with the second through-hole respectively, and the bolt is worn to establish and is used for fixed girder and major beam in the second through-hole, and little minor beam is located major beam top, and the length of little minor beam is greater than major beam.
In the preferred scheme, the girder is equipped with fixing device, and fixing device is including a plurality of major beam draw-in grooves and a plurality of little minor beam draw-in groove that evenly set up, and major beam draw-in groove is located the girder lateral wall, is equipped with first through-hole on the major beam draw-in groove, and first through-hole size and second through-hole match, and the bolt is worn to establish in first through-hole size and second through-hole, and adjusting bolt is used for fixing major beam in major beam draw-in groove, and little minor beam draw-in groove is located the girder top, and little minor beam draw-in groove and little minor beam gomphosis are.
In the preferred scheme, the girder is a cavity structure, one side of the girder is provided with a connector, a third through hole is oppositely arranged on the connector, the other side of the girder is provided with a girder clamping groove, a fourth through hole is oppositely arranged on the girder clamping groove, and the appearance of the connector is matched with the girder clamping groove.
In the preferred scheme, the girder upper end evenly is provided with a plurality of support columns, and the support column is located little secondary beam draw-in groove one side, and the support column upper end is equipped with the fifth through-hole, and railing is installed to fifth through-hole detachable, and the railing is including cross arrangement's horizontal pole and montant, and montant lower extreme diameter and fifth through-hole match.
In the preferred scheme, the section size of the small secondary beam is smaller than that of the large secondary beam, and the distance between the two small secondary beams is smaller than that between the two large secondary beams.
In the preferred scheme, the panel is detachably installed above the small secondary beam, and the width of the panel is smaller than the length of the small secondary beam.
In the preferred scheme, the trestle support is of a frame type structure, the height of the trestle support is equal to the vertical distance between the cantilever beams and the main beams, the width of the trestle support is greater than or equal to the distance between the two main beams, and the length of the trestle support is greater than or equal to the distance between the adjacent cantilever beams.
In the preferred scheme, the length of the cantilever beam is greater than the sum of the width of the trestle main body and the distance between the trestle main body and the template supporting structure.
In a preferred scheme, the construction method of the assembly type construction trestle comprises the following steps:
step1, respectively processing a main beam, a large secondary beam, a small secondary beam, a panel, a railing and a trestle bracket;
step2, assembling and constructing the processed parts and firmly lengthening the main beam until the installation of the trestle main body is completed;
step3, placing trestle supports on cantilever beams of the first template and the second template respectively and pre-tightening the trestle supports;
step4, hoisting the mounted trestle main body to a trestle bracket, placing a concrete pump pipe on the first template, fixing a reserved embedded part, and performing main structure construction of the concrete bridge body;
step5, installing an anchoring beam on the embedded part of the first template, removing the trestle bracket, and placing the trestle main body on the anchoring beam;
step6, removing the pump pipe on the first template and placing the pump pipe on the second template to complete the pouring of the concrete bridge body;
step7, when the concrete bridge body on the first template reaches the design strength, removing the first template to the position of a third template and installing;
and Step8, and circulating operations S1-S7 until all the concrete bridges are constructed.
The assembled construction trestle and the construction method thereof have the beneficial effects that:
1) the structure is stable: through the firm connection of bolt between girder and the major-minor roof beam, place the voussoir between railing and the fifth through-hole, guaranteed holistic stability.
2) The installation is convenient: big secondary beam and little secondary beam all can directly place in big secondary beam draw-in groove and little secondary beam draw-in groove, and the panel is laid and temporarily fixed on little secondary beam upper portion, has reduced the use and the fastening time of instrument.
3) The transportation is convenient: due to the fact that the parts are arranged in a split mode, the problem that transportation is relatively complex due to overlarge size is solved, operation efficiency is improved, and after the parts are used, the parts can be directly disassembled and transported to the next working point.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a general schematic of the present invention;
FIG. 2 is a schematic right-view of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is a schematic view of the connection of the main beam and the attachment beam of the present invention;
FIG. 6 is an overall schematic view of the main beam of the present invention;
FIG. 7 is a schematic representation of the construction Step4 of the present invention;
FIG. 8 is a schematic representation of the construction Step5 of the present invention;
FIG. 9 is a schematic view of the construction Step6 of the present invention.
In the figure: a main beam 1; a major-minor beam slot 101; a minor beam slot 102; a first through hole 103; a connector 104; a third through hole 105; a main beam clamp slot 106; a support column 107; a fifth through hole 108; a main beam clamp slot 109; a major-minor beam 2; a second through hole 201; a small secondary beam 3; a panel 4; a handrail 5; a crossbar 501; a vertical rod 502; an anchor beam 6; a trestle support 7; a cantilever beam 8; a trestle main body 9; a connecting beam 10; a formwork support structure 11; a first template 1101; a second template 1102; a third template 1103; a concrete bridge body 12.
Detailed Description
Examples
As shown in fig. 1 to 9, an assembled construction trestle comprises an anchoring beam 6 and a trestle support 7, wherein the anchoring beam 6 is fixedly arranged on poured concrete, the trestle support 7 is detachably arranged on a cantilever beam 8, the anchoring beam 6 and the trestle support 7 are arranged in parallel, the anchoring beam 6 and the trestle support 7 are matched for supporting a trestle main body 9, the trestle main body 9 comprises at least two main beams 1 arranged in parallel, and the two main beams 1 are connected and fixed through a connecting beam 10;
the cantilever beam 8 is positioned below the anchoring beam 6, and one side of the cantilever beam 8 is connected with the formwork support structure 11. From this structure, so that 8 supporting landing stage supports 7 of cantilever beam, place landing stage main part 9 on landing stage supports 7, wait to accomplish concreting of concrete bridge body 12, accomplish the construction back of anchor roof beam 6 through the built-in fitting simultaneously, dismantle landing stage supports 7, anchor roof beam 6 replaces landing stage supports 7 to play the effect of supporting landing stage main part 9 this moment, two girder 1 symmetries are placed on anchor roof beam 6 and/or landing stage supports 7, guarantee that girder 1 is parallel with the main axis of construction structure, increase the quantity of girder 1 according to actual conditions, thereby reach the purpose of widening of landing stage main part 9 bridge floor, overall structure is stable and construction convenience.
In the preferred scheme, the tie-beam 10 includes a plurality of major beams 2 and a plurality of little minor beam 3 that evenly set up, and 2 both ends of major beam are equipped with second through-hole 201 respectively, and the bolt is worn to establish and is used for fixed girder 1 and major beam 2 in second through-hole 201, and little minor beam 3 is located major beam 2 top, and the length of little minor beam 3 is greater than major beam 2. From this structure, guaranteed the stability between two girder 1, major beam 2 plays the effect of connecting girder 1, guarantees the synchronous stay and the good rigidity of girder 1, and minor beam 3 plays the effect of bearing panel, and major beam 2 and girder 1 set up perpendicularly, and minor beam 3 and girder 1 set up perpendicularly.
In the preferred scheme, girder 1 is equipped with fixing device, fixing device is including a plurality of major beam draw-in grooves 101 and a plurality of little minor beam draw-in groove 102 of even setting, major beam draw-in groove 101 is located girder 1 lateral wall, be equipped with first through-hole 103 on major beam draw-in groove 101, first through-hole 103 size and second through-hole 201 phase-match, the bolt is worn to establish in first through-hole 103 size and second through-hole 201, adjusting bolt is used for fixing major beam 2 at major beam draw-in groove 101, little minor beam draw-in groove 102 is located girder 1 top, little minor beam draw-in groove 102 and 3 gomphosis connections of little minor beam. From this structure, so that major beam 2 and major beam draw-in groove 101 pass through the bolt fastening, easy to assemble and maintenance, minor beam 3 and the gomphosis of minor beam draw-in groove 102, convenient to use is quick detachable, major beam draw-in groove 101 is U template structure, the trompil of U template both sides, major beam notch is up, major beam notch width slightly is greater than the size of major beam 2, upright setting is at girder 1 lateral wall, minor beam draw-in groove 102 is U template structure, horizontal placement is in girder 1 upper end, minor beam notch is inside, minor beam notch width slightly is greater than the size of major beam 2.
In a preferred scheme, the main beam 1 is of a cavity structure, one side of the main beam 1 is provided with a connector 104, the connector 104 is relatively provided with a third through hole 105, the other side of the main beam 1 is provided with a main beam clamping groove 109, the main beam clamping groove 109 is relatively provided with a fourth through hole 106, and the appearance of the connector 104 is matched with that of the main beam clamping groove 109. From this structure to make girder 1 connect as required according to length, when two adjacent girders 1 connect, the connector 104 of first girder 1 and the girder draw-in groove 109 of second girder 1 pass through the firm connection of bolt, and overall performance is stable, simple to operate.
In the preferred scheme, 1 upper end of girder evenly is provided with a plurality of support columns 107, and the support column is located little secondary beam draw-in groove 102 one side, and support column 107 upper end is equipped with fifth through-hole 108, and railing 5 is installed to fifth through-hole 108 detachable, and railing 5 is including cross horizontal pole 501 and the montant 502 that sets up, and montant 502 lower extreme diameter matches with the fifth through-hole. From this structure, horizontal pole 501 and montant 502 are hollow structure, and fifth through-hole 108 diameter slightly is greater than montant 502 lower extreme diameter to make montant 502 insert and establish in fifth through-hole 108, place the voussoir through the gap department at montant 502 and fifth through-hole 108, guaranteed the inseparable of installation, increased the stability of railing.
In a preferable scheme, the sectional dimension of the small secondary beam 3 is smaller than that of the large secondary beam 2, and the distance between the two small secondary beams 3 is smaller than that between the two large secondary beams 2. With the structure, the small secondary beam 3 plays a role in assisting load sharing, and can be freely disassembled.
In the preferred scheme, panel 4 is detachably installed above small secondary beam 3, and the width of panel 4 is less than the length of small secondary beam 3. By the structure, the surface of the panel 4 is provided with the anti-skid layer, and the panel 4 is made of light high-rigidity high-modulus materials, so that the use convenience is ensured.
In the preferred scheme, the trestle support 7 is of a frame structure, the height of the trestle support 7 is equal to the vertical distance between the cantilever beams 8 and the main beams 1, the width of the trestle support 7 is greater than or equal to the distance between the two main beams 1, and the length of the trestle support 7 is greater than or equal to the distance between the adjacent cantilever beams 8. By the structure, the trestle support 7 can stably support the trestle main body 9, and the trestle main body 9 is stable and continuous between the adjacent concrete bridge bodies 12.
In a preferred scheme, the length of the cantilever beam 8 is greater than the sum of the width of the trestle main body 9 and the distance between the trestle main body 9 and the template support structure 11. From this structure to make the holistic safe in utilization of having guaranteed, cantilever beam 8 plays the effect of supporting landing stage main part 9.
In a preferred scheme, the construction method of the assembly type construction trestle comprises the following steps:
step1, respectively processing a main beam 1, a large secondary beam 2, a small secondary beam 3, a panel 4, a railing 5 and a trestle bracket 7;
step2, assembling and constructing the processed parts and firmly lengthening the main beam 1 until the installation of the trestle main body 9 is completed;
step3, placing and pre-tightening trestle supports 7 on cantilever beams 8 of the first template 1101 and the second template 1102 respectively;
step4, hoisting the mounted trestle main body 9 to the trestle bracket 7, placing a concrete pump pipe on the first template 1101, fixing a reserved embedded part, and performing main body structure construction of the concrete bridge body 12;
step5, installing an anchoring beam 6 on an embedded part of the first template 1101, removing a trestle bracket 7, and placing a trestle main body 9 on the anchoring beam 6;
step6, removing the pump pipe on the first template 1101 and placing the pump pipe on the second template 1102 to complete the pouring of the concrete bridge body 12;
step7, when the concrete bridge body 12 on the first template 1101 reaches the design strength, removing the first template 1101 to the third template 1103 position and installing;
step8, and repeating the operations S1-S7 until all the concrete bridge bodies 12 are constructed.
From this structure, can convenient and fast's completion whole concrete bridge 12 construction, landing stage main part 9's stable in structure simultaneously, convenient operation is efficient.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (10)
1. The utility model provides an assembled construction landing stage, characterized by: the concrete-bearing trestle bridge comprises an anchoring beam (6) and a trestle support (7), wherein the anchoring beam (6) is fixedly arranged on poured concrete, the trestle support (7) is detachably arranged on a cantilever beam (8), the anchoring beam (6) and the trestle support (7) are arranged in parallel, the anchoring beam (6) and the trestle support (7) are matched for supporting a trestle bridge main body (9), the trestle main body (9) comprises at least two main beams (1) which are arranged in parallel, and the two main beams (1) are fixedly connected through a connecting beam (10);
the cantilever beam (8) is positioned below the anchoring beam (6), and one side of the cantilever beam (8) is connected with the template supporting structure (11).
2. The assembly type construction trestle of claim 1, which is characterized in that: the tie-beam (10) is including a plurality of major beams (2) and a plurality of little minor beam (3) that evenly set up, and major beam (2) both ends are equipped with second through-hole (201) respectively, and the bolt is worn to establish and is used for fixed girder (1) and major beam (2) in second through-hole (201), and minor beam (3) are located major beam (2) top, and the length of little minor beam (3) is greater than major beam (2).
3. The fabricated construction trestle of claim 2, which is characterized in that: girder (1) is equipped with fixing device, fixing device is including a plurality of major-minor roof beam draw-in grooves (101) and a plurality of little minor roof beam draw-in groove (102) that evenly set up, major-minor roof beam draw-in groove (101) are located girder (1) lateral wall, be equipped with first through-hole (103) on major-minor roof beam draw-in groove (101), first through-hole (103) size and second through-hole (201) phase-match, the bolt is worn to establish in first through-hole (103) size and second through-hole (201), adjusting bolt is used for fixing major-minor roof beam (2) in major-minor roof beam draw-in groove (101), little minor roof beam draw-in groove (102) are located girder (1) top, little minor roof beam draw-in groove (102) and little minor roof.
4. The assembly type construction trestle of claim 1, which is characterized in that: the main beam (1) is of a cavity structure, one side of the main beam (1) is provided with a connector (104), a third through hole (105) is relatively arranged on the connector (104), the other side of the main beam (1) is provided with a main beam clamping groove (109), a fourth through hole (106) is relatively arranged on the main beam clamping groove (109), and the appearance of the connector (104) is matched with the main beam clamping groove (109).
5. The assembly type construction trestle of claim 1, which is characterized in that: girder (1) upper end evenly is provided with a plurality of support columns (107), and the support column is located little secondary beam draw-in groove (102) one side, and support column (107) upper end is equipped with fifth through-hole (108), and railing (5) are installed to fifth through-hole (108) detachable, and railing (5) are including horizontal pole (501) and montant (502) that cross arrangement, montant (502) lower extreme diameter and fifth through-hole (108) phase-match.
6. The fabricated construction trestle of claim 2, which is characterized in that: the section size of the small secondary beam (3) is smaller than that of the large secondary beam (2), and the distance between the two small secondary beams (3) is smaller than that between the two large secondary beams (2).
7. The fabricated construction trestle of claim 2, which is characterized in that: panel (4) are installed to little secondary beam (3) top detachable, and the width of panel (4) is less than the length of little secondary beam (3).
8. The assembly type construction trestle of claim 1, which is characterized in that: the trestle support (7) is of a frame structure, the height of the trestle support (7) is equal to the vertical distance between the cantilever beam (8) and the main beam (1), the width of the trestle support (7) is greater than or equal to the distance between the two main beams (1), and the length of the trestle support (7) is greater than or equal to the distance between the adjacent cantilever beams (8).
9. The assembly type construction trestle of claim 1, which is characterized in that: the length of the cantilever beam (8) is larger than the sum of the width of the trestle main body (9) and the distance between the trestle main body (9) and the template supporting structure (11).
10. A construction method of an assembled construction trestle is characterized by comprising the following steps: the method comprises the following steps:
step1, respectively processing a main beam (1), a large secondary beam (2), a small secondary beam (3), a panel (4), a railing (5) and a trestle bracket (7);
step2, assembling and constructing the processed parts and firmly lengthening the main beam (1) until the installation of the trestle main body (9) is completed;
step3, placing and pre-tightening trestle supports (7) on cantilever beams (8) of a first template (1101) and a second template (1102) respectively;
step4, hoisting the mounted trestle main body (9) to a trestle bracket (7), placing a concrete pump pipe on the first template (1101), fixing a reserved embedded part, and performing main structure construction of the concrete bridge body (12);
step5, installing an anchoring beam (6) on an embedded part of a first template (1101), removing a trestle bracket (7), and placing a trestle main body (9) on the anchoring beam (6);
step6, removing the pump pipe on the first template (1101) and placing the pump pipe on the second template (1102) to finish the pouring of the concrete bridge body (12);
step7, when the concrete bridge body (12) on the first template (1101) reaches the design strength, removing the first template (1101) to the position of a third template (1103) and installing;
and Step8, and circulating operations S1-S7 until all the concrete bridge bodies (12) are constructed.
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| CN202011365285.0A CN112281625B (en) | 2020-11-28 | 2020-11-28 | Fabricated construction trestle and construction method thereof |
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| CN202011365285.0A CN112281625B (en) | 2020-11-28 | 2020-11-28 | Fabricated construction trestle and construction method thereof |
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| CN112281625A true CN112281625A (en) | 2021-01-29 |
| CN112281625B CN112281625B (en) | 2022-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113481824A (en) * | 2021-07-20 | 2021-10-08 | 河南东恒市政工程有限公司 | Simple bridge easy to construct |
| CN113652953A (en) * | 2021-09-01 | 2021-11-16 | 福州轨道交通设计院有限公司 | Novel assembled overline bridge ramp |
| CN114016379A (en) * | 2021-11-26 | 2022-02-08 | 巨力索具研究院(天津)有限公司 | Emergent combination bridge of pin-connected panel |
| CN114016380A (en) * | 2021-11-15 | 2022-02-08 | 上海市政工程设计研究总院（集团）有限公司 | Prefabricated assembled concrete trestle and construction method thereof |
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| CN113481824A (en) * | 2021-07-20 | 2021-10-08 | 河南东恒市政工程有限公司 | Simple bridge easy to construct |
| CN113652953A (en) * | 2021-09-01 | 2021-11-16 | 福州轨道交通设计院有限公司 | Novel assembled overline bridge ramp |
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| CN114016379A (en) * | 2021-11-26 | 2022-02-08 | 巨力索具研究院(天津)有限公司 | Emergent combination bridge of pin-connected panel |
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| CN112281625B (en) | 2022-04-26 |
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