CN110172922B - Construction method of environment-friendly downlink self-propelled steel trestle structure - Google Patents
Construction method of environment-friendly downlink self-propelled steel trestle structure Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 15
- 239000010959 steel Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 239000010720 hydraulic oil Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 5
- 238000009435 building construction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 239000004567 concrete Substances 0.000 description 1
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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
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Abstract
The invention provides an environment-friendly construction method of a downlink self-propelled steel trestle structure, which comprises the following specific steps: measuring the height of vegetation on a construction line; completing the construction of the first two piers, and installing lifting equipment; assembling the main longitudinal beam; lifting a main longitudinal beam, installing a bracket and a sliding device, and lowering the main longitudinal beam to the sliding device; installing an adjustable supporting system and a sliding device, lengthening a main longitudinal beam, and installing a transverse connecting beam; assembling a movable crane and a movable transport trolley, installing an adjustable support system and a sliding device, lengthening a main longitudinal beam, and installing a transverse connecting beam; building a construction working table, and arranging a drilling machine to carry out pile foundation construction; constructing a pier structure; installing an adjustable supporting system and a sliding device, and sliding a main longitudinal beam; and installing an adjustable supporting system, a sliding device and a sliding main longitudinal beam. The method reduces the influence on the environment; the ground construction on the trestle structure is realized; the safety of the structure is guaranteed.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to an environment-friendly construction method for a downlink self-propelled steel trestle structure.
Background
The environment-friendly society is a new human society development form characterized by environment friendliness, is a concrete expression form of a sustainable development society, is a harmonious society of human and nature, and is necessarily a basically harmonious society of human and human. The goal of building an environment-friendly society has been commonly recognized by the masses. At the present stage, the establishment of ecological environment protection is an important measure for building an environment-friendly society in China. The building construction is one of the important factors for polluting the environment, so that the key problem to be solved at present is how to reduce the emission in the construction process and reduce the influence of the construction on the environment.
In the bridge construction in areas with high environmental protection requirements, even if the most environment-friendly assembly type construction mode is adopted at present, the destructive influence on the environment can still be caused when equipment enters a field, a field is leveled, and foundation construction and temporary construction are carried out.
In the existing construction method for the high environmental protection requirement of the bridge, the erection of the bridge section can realize the construction without falling to the ground by technologies such as a hanging basket, a bridge erecting machine and the like, and the influence on the surrounding environment is reduced to the maximum extent. However, for the construction of the pile foundation or the bearing platform of the bridge structure, mechanical equipment ground operation is still generally adopted, and pile driving construction and bearing platform pouring are carried out. In the process of ground operation of the equipment, vehicles and the equipment continuously come in and go out of the site, and the influence on the natural environment of the area except the construction red line is also great.
In the prior art, the construction technology of the bridge structure which has no influence on the periphery is limited at present. In patents with publication numbers CN101509230B, CN101581073B, CN102953343A, CN104120659B, CN105839548B, CN105908629B, CN201010860Y, CN201873946U, CN202000263U, CN202416191U, CN202482775U, and CN204174537U, the so-called down-type mobile construction equipment is construction equipment for a main beam structure, such as a bridge girder erection machine and a hanging basket, and construction equipment at other parts of a bridge structure except the main beam structure is not mentioned.
The patent with publication numbers CN201620644167 and CN201610467070 discloses a pile-column integrated structure cross-pile type non-landing construction steel platform structure, which solves the technical problem of non-landing construction of a pile foundation to a certain extent, but the structure disclosed in the patent is only limited to the construction of a precast concrete pipe pile, and cannot be constructed for the cast-in-place pile structure which is most widely applied to the current bridge; meanwhile, the movement of the steel platform in the patent needs to continuously disassemble and assemble the pile cap structure, and large-scale hoisting equipment is needed to be matched, so that autonomous movement cannot be carried out, and the technical advantage in construction speed is lacked.
At present, a trestle structure serving as a main platform for constructing a lower structure is mainly supported by steel pipe piles, and Bailey pieces are arranged on the surface of the trestle, so that although a construction platform can be provided for constructing the lower structure of the bridge, the structure cannot be moved, the turnover is difficult, other construction equipment needs to be configured, and the construction of the trestle structure can also cause certain influence on the surrounding environment.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an environment-friendly construction method of a downlink self-propelled steel trestle structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environment-friendly construction method for a downlink self-propelled steel trestle structure comprises the following specific steps:
step one, measuring the height H of vegetation on a construction line;
step two, completing the construction of the front two piers of the bridge, and installing lifting equipment above the front two piers after the construction is completed;
thirdly, transporting the main longitudinal beams to a construction site in a segmented mode, and assembling the main longitudinal beams on the sites on two sides of the first two piers after construction;
lifting the main longitudinal beam to a mounting height by using the lifting equipment mounted in the second step, wherein the mounting height is higher than the height H1m of the vegetation; respectively installing brackets on the side walls of two sides of the front two piers after construction, installing a sliding device on the brackets, and lowering the main longitudinal beam onto the sliding device through lifting equipment to complete the installation of the main longitudinal beam;
installing a group of adjustable supporting systems on one side, close to the next bridge pier which is not constructed, of the last bridge pier which is constructed, installing a sliding device on the top of the adjustable supporting pier of each adjustable supporting system, adjusting the top height of each adjustable supporting pier to be the same as the top height of each bracket through a hydraulic oil cylinder, lengthening the main longitudinal beams, enabling the lengthened main longitudinal beams to be supported on the adjustable supporting systems and the sliding devices of the brackets together, and installing a transverse connecting beam between the two main longitudinal beams;
assembling a movable crane and a movable transport trolley on the top of the main longitudinal beam, placing the assembled movable crane on an outer side rail at the top of the main longitudinal beam, and placing the assembled movable transport trolley on an inner side rail at the top of the main longitudinal beam; mounting a group of adjustable support systems on one side, close to the next bridge pier which is not constructed yet, of the adjustable support pier mounted in the step five, mounting a sliding device on the top of the adjustable support pier of each adjustable support system, adjusting the height of the top of the adjustable support pier to be the same as that of the top of the bracket through a hydraulic oil cylinder, and sliding the main longitudinal beam to enable the front end of the main longitudinal beam to move to the sliding device which is just mounted; lengthening the main longitudinal beams by a movable crane, and installing a transverse connecting beam between the two main longitudinal beams at the lengthened part;
step seven, a construction working table is erected between the two main longitudinal beams right above the bridge pier pile foundation which is not constructed yet, and drilling machinery is arranged on the construction working table to carry out the pile foundation construction of the bridge pier;
step eight, constructing a pier structure at the top of the pile foundation constructed in the step seven by utilizing a movable crane, a movable transport trolley and pouring equipment;
step nine, a group of adjustable supporting systems is installed on one side, close to the next bridge pier which is not yet constructed, of the last bridge pier which is constructed by utilizing the movable crane, a sliding device is installed on the top of the adjustable supporting pier of each adjustable supporting system, the height of the top of each adjustable supporting pier is adjusted to be the same as that of the top of each bracket through a hydraulic oil cylinder, and the main longitudinal beam is slid to enable the front end of the main longitudinal beam to move to the sliding device which is installed just;
tenth, mounting a group of adjustable support systems on one side, close to the next bridge pier which is not yet constructed, of the adjustable support pier mounted in the ninth step, mounting a sliding device on the top of the adjustable support pier of the adjustable support systems, adjusting the top height of the adjustable support pier to be the same as the top height of the bracket through a hydraulic oil cylinder, and sliding the main longitudinal beam to enable the front end of the main longitudinal beam to move to the sliding device which is just mounted; after the nine steps are executed, the step is executed for 0-2 times;
step eleven, executing the step seven and the step eight again;
and step twelve, repeatedly executing the step nine to the step eleven until all the bridge piers are constructed.
Furthermore, the sliding devices are arranged on two sides of the main longitudinal beam and are provided with jacks for adjusting the transverse position of the main longitudinal beam.
Furthermore, the sliding device is connected with the main longitudinal beam in a sliding mode through a sliding gasket.
Further, the number of times of performing step ten each time is 1.
And further, detaching the transverse connecting beam which conflicts with the position of the finished pier in the sliding process of the main longitudinal beam in the sixth step and the ninth step, and resetting and installing the detached transverse connecting beam after the installation position of the transverse connecting beam crosses the corresponding finished pier.
The invention has the beneficial effects that:
1) the method can realize the non-landing construction of the bridge substructure, and reduce the influence of equipment on the environment such as entering and exiting the field, building construction roads and the like;
2) the method can move through the sliding device arranged on the bracket and the adjustable supporting system, so that the influence of ground equipment on the environment is reduced;
3) the method sets the height of the bracket and the adjustable supporting system to be higher than the height of the peripheral vegetation, so that the descending self-propelled trestle does not influence the peripheral vegetation in the moving process;
4) the method can lead the movable crane, the movable transport trolley and the drilling machine to work on the movable trestle, thereby realizing the ground construction on the trestle structure;
5) the method adopts the sectional lengthening main longitudinal beam, which is convenient for the transportation of large components and the erection of the initial section of the trestle;
6) the method of the invention adopts a sliding mode to carry out integral movement, which is beneficial to reducing the structural vibration caused in the moving process and ensuring the safety of the structure.
Drawings
FIG. 1 is a front view of the present invention after completion of step four;
FIG. 2 is a partial top view of the present invention after completion of step five;
FIG. 3 is a left side view of the present invention during a step four construction;
FIG. 4 is a front view of the present invention after completion of step seven;
in the figure: 1-lifting equipment; 2-main longitudinal beam; 3-bracket; 4-a slipping device; 5-bridge pier; 6-adjustable support piers; 7-transverse connecting beam; 8-a movable crane; 9-moving the transport trolley; 10-an adjustable support system;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention is further illustrated by the following examples:
an environment-friendly construction method for a downlink self-propelled steel trestle structure comprises the following specific steps:
step one, measuring the height H of vegetation on a construction line;
step two, completing the construction of the front two piers 5 of the bridge, and installing lifting equipment 1 above the front two piers 5 after the construction;
thirdly, transporting the main longitudinal beams 2 to a construction site in a segmented mode, and assembling the main longitudinal beams 2 on the sites on two sides of the first two piers 5 after construction;
lifting the main longitudinal beam 2 to a mounting height by using the lifting equipment 1 mounted in the second step, wherein the mounting height is higher than the height H1m of the vegetation; installing brackets 3 on the side walls of two sides of the first two piers 5 after construction, installing a sliding device 4 on the brackets 3, and lowering the main longitudinal beam 2 onto the sliding device 4 through the lifting device 1 to complete the installation of the main longitudinal beam 2;
fifthly, mounting a group of adjustable supporting systems 10 on one side, close to the next bridge pier 5 which is not yet constructed, of the last bridge pier 5 which is completely constructed, mounting a sliding device 4 on the top of the adjustable supporting pier 6 of each adjustable supporting system 10, adjusting the top height of the adjustable supporting pier 6 to be the same as that of the bracket 3 through a hydraulic oil cylinder, lengthening the main longitudinal beams 2, enabling the lengthened main longitudinal beams 2 to be supported on the adjustable supporting systems 10 and the sliding device 4 of the bracket 3 together, and mounting a transverse connecting beam 7 between the two main longitudinal beams 2;
assembling a movable crane 8 and a movable transport trolley 9 at the top of the main longitudinal beam 2, placing the assembled movable crane 8 on an outer side rail at the top of the main longitudinal beam 2, and placing the assembled movable transport trolley 9 on an inner side rail at the top of the main longitudinal beam 2; mounting a group of adjustable support systems 10 on one side, close to the next pier 5 which is not constructed, of the adjustable support pier 6 mounted in the step five, mounting a sliding device 4 on the top of the adjustable support pier 6 of the adjustable support systems 10, adjusting the top height of the adjustable support pier 6 to be the same as that of the bracket 3 through a hydraulic oil cylinder, and sliding the main longitudinal beam 2 to enable the front end of the main longitudinal beam to move to the sliding device 4 which is just mounted; lengthening the main longitudinal beams 2 through a movable crane 8, and installing a transverse connecting beam 7 between the two main longitudinal beams 2 at the lengthened part;
step seven, a construction working table is erected between the two main longitudinal beams 2 right above the pile foundation of the bridge pier 5 which is not constructed yet, and drilling machinery is arranged on the construction working table to carry out pile foundation construction of the bridge pier 5;
step eight, constructing a pier 5 structure on the top of the pile foundation constructed in the step seven by utilizing the movable crane 8, the movable transport trolley 9 and the pouring equipment;
step nine, a group of adjustable supporting systems 10 are installed on one side, close to the next bridge pier 5 which is not yet constructed, of the last bridge pier 5 which is completely constructed by using a movable crane 8, a sliding device 4 is installed at the top of each adjustable supporting pier 6 of each adjustable supporting system 10, the height of the top of each adjustable supporting pier 6 is adjusted to be the same as that of the top of each bracket 3 through a hydraulic oil cylinder, and the main longitudinal beam 2 is slid to enable the front end of the main longitudinal beam to move to the sliding device 4 which is just installed;
step ten, mounting a group of adjustable support systems 10 on one side, close to the next pier 5 which is not constructed, of the adjustable support pier 6 mounted in the step nine, mounting a sliding device 4 on the top of the adjustable support pier 6 of the adjustable support systems 10, adjusting the height of the top of the adjustable support pier 6 to be the same as that of the top of the bracket 3 through a hydraulic oil cylinder, and sliding the main longitudinal beam 2 to enable the front end of the main longitudinal beam to move to the sliding device 4 which is just mounted; after the nine steps are executed, the step is executed for 0-2 times;
step eleven, executing the step seven and the step eight again;
and step twelve, repeatedly executing the step nine to the step eleven until all the bridge piers 5 are constructed.
Furthermore, the sliding device 4 is arranged on two sides of the main longitudinal beam 2 and is provided with jacks for adjusting the transverse position of the main longitudinal beam 2.
Further, the sliding device 4 is connected with the main longitudinal beam 2 in a sliding mode through a sliding gasket.
Further, the number of times of performing step ten each time is 1.
Further, in the sixth step and the ninth step, the transverse connecting beam 7 which conflicts with the position of the finished pier 5 is detached in the sliding process of the main longitudinal beam 2, and the detached transverse connecting beam 7 is reset and installed after the installation position of the transverse connecting beam crosses the corresponding finished pier 5.
The method can realize the non-landing construction of the bridge substructure, and reduce the influence of equipment on the environment such as entering and exiting the field, building construction roads and the like; the main longitudinal beam 2 moves through a sliding device arranged on the bracket 3 and the adjustable supporting system 10, so that the influence of ground equipment on the environment is reduced; the height of the bracket 3 and the adjustable supporting system 10 is set to be higher than the height H of the surrounding vegetation, so that the surrounding vegetation is not affected; the movable crane 8, the movable transport trolley 9 and the drilling machine are adopted to work on the movable trestle, so that ground construction on the trestle structure is realized; the main longitudinal beam 2 is lengthened in a sectional manner, so that the transportation of large components and the erection of the initial section of the trestle are facilitated; the sliding mode is adopted for integral movement, so that structural vibration caused in the moving process is reduced, and the safety of the structure is guaranteed.
The present invention has been described in connection with the specific embodiments, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and it is within the protection scope of the present invention as long as various modifications are made by using the method concept and technical solution of the present invention, or the present invention is directly applied to other occasions without modification.
Claims (5)
1. An environment-friendly construction method for a downlink self-propelled steel trestle structure is characterized by comprising the following specific steps:
step one, measuring the height H of vegetation on a construction line;
step two, completing the construction of the front two piers (5) of the bridge, and installing lifting equipment (1) above the front two piers (5) after the construction;
thirdly, the main longitudinal beams (2) are transported to a construction site in a segmented mode, and the main longitudinal beams (2) are assembled on the sites on the two sides of the first two piers (5) after construction;
lifting the main longitudinal beam (2) to a mounting height by using the lifting equipment (1) mounted in the second step, wherein the mounting height is higher than the height H1m of the vegetation; brackets (3) are respectively arranged on the side walls of two sides of the front two piers (5) which are constructed completely, a sliding device (4) is arranged on the brackets (3), the main longitudinal beam (2) is lowered onto the sliding device (4) through a lifting device (1), and the main longitudinal beam (2) is installed;
fifthly, mounting a group of adjustable supporting systems (10) on one side, close to the next bridge pier (5) which is not yet constructed, of the last bridge pier (5) which is completely constructed, mounting a sliding device (4) on the top of the adjustable supporting pier (6) of each adjustable supporting system (10), adjusting the top height of each adjustable supporting pier (6) to be the same as that of each bracket (3) through a hydraulic oil cylinder, lengthening the main longitudinal beams (2), enabling the lengthened main longitudinal beams (2) to be supported on the adjustable supporting systems (10) and the sliding devices (4) of the brackets (3) together, and mounting a transverse connecting beam (7) between the two main longitudinal beams (2);
assembling a movable crane (8) and a movable transport trolley (9) at the top of the main longitudinal beam (2), placing the assembled movable crane (8) on an outer side track at the top of the main longitudinal beam (2), and placing the assembled movable transport trolley (9) on an inner side track at the top of the main longitudinal beam (2); mounting a group of adjustable supporting systems (10) on one side, close to the next pier (5) which is not constructed, of the adjustable supporting pier (6) mounted in the step five, mounting a sliding device (4) on the top of the adjustable supporting pier (6) of each adjustable supporting system (10), adjusting the height of the top of the adjustable supporting pier (6) to be the same as that of the top of the bracket (3) through a hydraulic oil cylinder, and sliding the main longitudinal beam (2) to enable the front end of the main longitudinal beam to move to the sliding device (4) which is just mounted; the main longitudinal beams (2) are lengthened through a movable crane (8), and a transverse connecting beam (7) is arranged between the two main longitudinal beams (2) at the lengthened part;
step seven, a construction working table is erected between the two main longitudinal beams (2) right above the pile foundation of the bridge pier (5) which is not constructed yet, and drilling machinery is arranged on the construction working table to carry out pile foundation construction of the bridge pier (5);
eighthly, constructing a pier (5) structure on the top of the pile foundation constructed in the step seven by utilizing a movable crane (8), a movable transport trolley (9) and pouring equipment;
step nine, a group of adjustable supporting systems (10) are installed on one side, close to the next pier (5) which is not constructed, of the last pier (5) which is constructed by using a movable crane (8), a sliding device (4) is installed on the top of each adjustable supporting pier (6) of each adjustable supporting system (10), the height of the top of each adjustable supporting pier (6) is adjusted to be the same as that of the top of each bracket (3) through a hydraulic oil cylinder, and the front end of each main longitudinal beam (2) is moved to the sliding device (4) which is installed just;
tenth, mounting a group of adjustable support systems (10) on one side, close to the next bridge pier (5) which is not constructed, of the adjustable support pier (6) mounted in the ninth step, mounting a sliding device (4) on the top of the adjustable support pier (6) of the adjustable support systems (10), adjusting the top height of the adjustable support pier (6) to be the same as that of the bracket (3) through a hydraulic oil cylinder, and sliding the main longitudinal beam (2) to enable the front end of the adjustable support pier to move to the sliding device (4) which is just mounted; after the nine steps are executed, the step is executed for 0-2 times;
step eleven, executing the step seven and the step eight again;
and step twelve, repeatedly executing the step nine to the step eleven until all the bridge piers (5) are constructed.
2. The construction method of the environment-friendly descending self-propelled steel trestle structure according to claim 1, characterized in that the sliding devices (4) are provided with jacks for adjusting the transverse position of the main longitudinal beam (2) at both sides of the main longitudinal beam (2).
3. The construction method of an environmentally friendly self-propelled descending steel trestle structure according to claim 2, characterized in that the sliding device (4) is connected with the main longitudinal beam (2) in a sliding manner through a sliding gasket.
4. The construction method of an environmentally friendly down-going self-propelled steel trestle structure according to claim 1, wherein the number of times of performing step ten each time is 1.
5. The construction method of an environmentally friendly down-going self-propelled steel trestle structure according to claim 1, characterized in that in the sixth and ninth steps, the transverse connecting beam (7) which conflicts with the position of the finished pier (5) is detached during the sliding process of the main longitudinal beam (2), and the detached transverse connecting beam (7) is reset and installed after the installation position thereof crosses over the corresponding finished pier (5).
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| CN110607736A (en) * | 2019-09-04 | 2019-12-24 | 成都天府轨谷科技有限公司 | Pile foundation rail plate girder structure and construction method |
| CN111254837B (en) * | 2020-03-04 | 2021-06-22 | 成都天府轨谷科技有限公司 | Construction method for building bridge by bridge crane fishing method |
| CN114775433A (en) * | 2022-04-21 | 2022-07-22 | 郑州新大方重工科技有限公司 | Descending movable formwork for bridge abutment assembly and assembly method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01192693A (en) * | 1988-01-26 | 1989-08-02 | Kitagawa Iron Works Co Ltd | Bridge crane |
| KR100866106B1 (en) * | 2001-04-10 | 2008-10-31 | 아르까디 알렉세예비치 꼬르나쩨끼 | Method and installation for building a highway and a highway |
| CN101949146B (en) * | 2010-09-08 | 2012-05-30 | 中交二航局第四工程有限公司 | Offshore auxiliary construction platform device and using method thereof |
| CN205046483U (en) * | 2015-09-09 | 2016-02-24 | 中国铁建大桥工程局集团有限公司 | A portable construction platform for bridge foundation construction |
| CN105756683A (en) * | 2016-02-29 | 2016-07-13 | 刘万峰 | Self-propelled caterpillar band type mobile trestle |
| CN205420998U (en) * | 2016-03-17 | 2016-08-03 | 福建省海湾桥隧机械有限公司 | English truss self -propelled steel trestle |
| CN106087768B (en) * | 2016-08-12 | 2017-12-26 | 中铁二十五局集团第三工程有限公司 | A kind of method of the assembled mobile formwork in the narrow short transition time section of bridge tunnel |
| CN109629438A (en) * | 2019-01-11 | 2019-04-16 | 中国铁建大桥工程局集团有限公司 | Bridging method in a kind of water |
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Effective date of registration: 20240423 Address after: No.219 Bawei Road, Hedong District, Tianjin 300012 Patentee after: CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION Corp.,Ltd. Country or region after: China Patentee after: Sichuan tietuo Technology Co.,Ltd. Patentee after: WUHAN WUQIAO TRAFFIC EQUIPMENT TECHNOLOGY CO.,LTD. Address before: No.219 Bawei road Hedong District Tianjin 300170 Patentee before: CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION Corp.,Ltd. Country or region before: China Patentee before: SICHUAN TIECHUANG TECHNOLOGY Co.,Ltd. Patentee before: WUHAN WUQIAO TRAFFIC EQUIPMENT TECHNOLOGY CO.,LTD. |