CN110528405B - Bridge high-altitude lifting and shifting device based on vehicle set and construction method thereof - Google Patents
Bridge high-altitude lifting and shifting device based on vehicle set and construction method thereof Download PDFInfo
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- CN110528405B CN110528405B CN201910453174.6A CN201910453174A CN110528405B CN 110528405 B CN110528405 B CN 110528405B CN 201910453174 A CN201910453174 A CN 201910453174A CN 110528405 B CN110528405 B CN 110528405B
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- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention discloses bridge large-height lifting and shifting equipment based on a set of cars and an implementation method thereof, wherein the equipment comprises the set of cars and a lifting and shifting support assembly, the set of cars is arranged at the lower part of the lifting and shifting support assembly, and the lifting and shifting support assembly comprises: the conversion connecting beam comprises at least two rows of conversion connecting beams which are longitudinally arranged along a beam, wherein the lower part of each row of conversion connecting beams is fixedly provided with a plurality of lower beam outer upright columns which are vertically arranged in parallel, the inner sides of the lower beam outer upright columns are provided with a plurality of lower beam inner upright columns which are arranged in parallel with the lower beam outer upright columns, the tops of the lower beam inner upright columns are fixedly connected with the bottoms of the conversion connecting beams, and the bottoms of the lower beam inner upright columns are fixedly connected with a train set; the upper portion fixed mounting of conversion tie-beam has a plurality of vertical parallel arrangement's roof beam upper strut post, fixed mounting has the distributive girder on the roof beam upper strut post, be equipped with the connection support that is used for supporting the roof beam body on the distributive girder. The invention has simple lifting and shifting structure and convenient assembly, and can realize the quick removal, replacement and shifting of the large clearance bridge (group).
Description
Technical Field
The invention relates to the technical field of bridge lifting, shifting, dismantling and installing construction, in particular to bridge high-altitude lifting and shifting equipment based on a vehicle set and a construction method thereof.
Background
Along with the improvement of the living standard of people in China and the acceleration of the road construction and urbanization process, the problems that the planning is not satisfied, the traffic capacity is insufficient, the bearing capacity is insufficient, the bridge clearance is insufficient and the like appear in partial cities and road bridges, and most of the roads and the road bridges need to be dismantled, replaced or shifted, when the operation is carried out, particularly for the bridges with large clearance and large tonnage, the prior art has the following defects:
(1) when a bridge is dismantled, the bridge with larger clearance below the bridge (more than 6m) is difficult to be dismantled by a chiseling method directly, particularly the bridge which cannot be dismantled by blasting can only be dismantled by a mode of descending first and then decomposing, for example, the existing lifting and lowering dismantling method based on a continuous lifting oil cylinder has large construction difficulty, needs a larger operation space at the bridge side, has no universality, and the existing lifting and lowering dismantling method based on a jack has low work efficiency and poor safety;
(2) when a bridge is constructed, the bridge is influenced by road transportation load limit, height limit and width limit, particularly, a large-tonnage or large-clearance beam body based on industrialized prefabrication is difficult to transport and install on a road, the existing technology can only be constructed by adopting a segmented transportation hoisting mode, the field operation workload is large, the construction period is long, and the safety and the quality are difficult to ensure;
(3) when the bridge shifts, the existing jacking and lifting technologies basically only can vertically move, the jacking technologies are complex and basically only can horizontally move, the rotating technologies are very complex and only can limitedly rotate, the existing technologies have poor adaptability to the bridge requiring large clearance and rapid multidirectional shifting, and the economical efficiency of combined use is poor.
Disclosure of Invention
The invention aims to overcome the defects and provides a bridge large-height lifting and shifting device based on a vehicle set and a construction method thereof.
The technical scheme adopted by the invention is as follows:
a bridge high-altitude lifting and shifting device based on a set of vehicles comprises a set of vehicles and a lifting and shifting support assembly, wherein the set of vehicles is arranged at the lower part of the lifting and shifting support assembly, and the lifting and shifting support assembly comprises:
the conversion connecting beam comprises at least two rows of conversion connecting beams which are longitudinally arranged along a beam, wherein the lower part of each row of conversion connecting beams is fixedly provided with a plurality of vertical and parallel lower beam outer columns, the inner sides of the lower beam outer columns are provided with a plurality of lower beam inner columns which are parallel to the lower beam outer columns, the tops of the lower beam inner columns are fixedly connected with the bottom of the conversion connecting beams, and the bottoms of the lower beam inner columns are fixedly connected with a train set;
the upper portion fixed mounting of conversion tie-beam has a plurality of vertical parallel arrangement's roof beam to support the stand, fixed mounting has last distributing beam on the roof beam to support the stand, upward be equipped with on the distributing beam and be used for carrying out the connection support that supports to the roof beam body.
The outer column under the roof beam, the inner column under the roof beam, the support post on the roof beam are supported the section by a plurality of standards and are constituteed, adopt detachable bolted connection between a plurality of standard support sections.
Preferably, the standard support sections are all made in a modularized mode, and the cross section of each standard support section is cylindrical or square column or other stable columns.
Preferably, the support columns on two adjacent rows of beams are connected through the longitudinal bridge-direction connecting sheets, and the support columns on the same row of beams are connected through the transverse bridge-direction connecting sheets.
Preferably, the lower end of the support upright on the beam is connected with the conversion connecting beam through a diagonal brace.
Preferably, the lower inner columns of two adjacent rows of beams are connected through inner column longitudinal bridge horizontal connecting rods, and the lower inner columns of the same row of beams are connected through inner column transverse bridge horizontal connecting rods (10 a).
Preferably, the inner and outer columns under the beam on the same side are connected by the horizontal connecting rods of the inner and outer columns, and the outer and inner columns under the beam on the same row are connected by the horizontal connecting rods of the outer columns.
Preferably, the vehicle set is fixedly provided with a flat-cushion fixed beam, and the bottom of the inner upright column below the beam is connected with the vehicle set through the flat-cushion fixed beam.
The embodiment of the invention provides a bridge descending implementation method based on a bridge large-height lifting and shifting device of a train set, which comprises the following steps:
s1, completing the assembly of the bridge large-height lifting and shifting equipment based on the vehicle set outside the field, integrally hauling the vehicle set to a designated position at the bottom of the beam body, and reserving a small section of space installation connecting support between the upper distribution beam and the bottom of the beam body;
s2, jacking the trolley set upwards to approach the maximum jacking stroke, enabling the support to be in contact with the bottom of the beam body, and enabling the jacking pressure of the trolley set to reach the designed tonnage;
s3, cutting off the beam body in a cutting mode to enable the beam body to be in a downward putting state, wherein all loads of the beam body act on the vehicle set through the inner upright post under the beam body, and the outer upright post under the beam body is enabled to be away from the ground by a standard connecting section length;
s4, the vehicle set is lowered synchronously by the length of one standard connecting section to enable the outer upright posts under the beams to fall on the leveling cushion blocks, the vehicle set continues to be lowered until the counter force of the inner upright posts under the beams is completely converted to the outer upright posts under the beams, the inner upright posts under the beams are emptied, and the standard connecting section of the lowest section of the inner upright posts under the beams is removed;
s5, synchronously jacking the vehicle group to a distance of a connecting section until the leveling fixed beam is completely contacted with the inner upright post under the beam and bears the whole load of the outer upright posts under all the beams, so that the outer upright posts under the beam are separated from the leveling cushion block, and the standard connecting section of the lowest section of the outer upright posts under the beam is removed;
s6, circulating the steps S4 and S5, enabling the beam bodies to be alternately lowered until the beam bodies are lowered to the designed height, further carrying out relevant treatment on the beam bodies, and directly moving the beam bodies to the designated positions for construction and installation.
The embodiment of the invention provides a bridge jacking, shifting and installing implementation method of bridge large-height lifting and shifting equipment based on a set of cars, which is characterized by comprising the following steps of:
s1, assembling the conversion connecting beam and the components on the vehicle group, and arranging a flatly-padded fixed beam between the conversion continuous beam and the vehicle group in the longitudinal bridge direction;
s2, safely conveying the low-position prefabricated beam body to a designated mounting point through a vehicle set, horizontally moving the beam body to a certain distance away from the pier stud, and ensuring that the beam body can be smoothly lifted, wherein the load of the beam body is completely acted on the vehicle set;
s3, after the vehicle set is in place, performing on-site debugging to ensure that the supporting structure is vertical and the flat-cushion fixed beam is horizontal;
s4, after debugging is completed, synchronously jacking the vehicle set, enabling the distance between the lower outer upright post of the beam and the ground to exceed the length of a standard connecting section, and adding a section of standard connecting section at the lowest end of the lower outer upright post of the beam;
s5, the vehicle group descends integrally and synchronously, the outer column under the beam falls on the leveling cushion block until the counter force of the inner column under the beam is completely converted to the outer column under the beam, at the moment, the vehicle group descends continuously, the inner column under the beam and the leveling fixing beam are separated by more than one standard connecting section length, and one section of standard connecting section is added at the lowest end of the inner column under the beam;
s6, circulating steps S4 and S5, and sequentially and respectively adding a section of standard connecting section at the lowest part of the inner upright post and the outer upright post under the beam to enable the beam body to be gradually jacked until the designed jacking height is reached;
and S7, after the vehicle group moves to the designated mounting point, the beam body is placed down until the beam body accurately falls on the pier stud, and the vehicle group lifting and moving equipment is withdrawn, so that the beam body is treated relatively.
Compared with the prior art, the invention has the beneficial effects that:
the bridge large-height lifting and shifting equipment based on the train set has the advantages of simple structure, convenience in assembly, capability of repeatedly utilizing lifting and shifting support assemblies, no limitation on assembly positions, capability of realizing the removal, replacement or shifting of large clearance bridges (groups), safety, adaptability, rapidness, universality, economy and the like, and has obvious advantages in the aspects of safety, adaptability, universality, economy and the like, and the equipment comprises the following advantages:
(1) safety: the supporting point of the support to the beam body is unchanged in the jacking process, so that the safety of the beam body is guaranteed; the hydraulic system, the control system and the vehicle system are integrated into a whole by the vehicle set, so that the shifting operation is simplified, and the operation safety can be guaranteed; the bridge lifting and moving equipment is easy to standardize, high in mechanization degree, simple and convenient to operate and basically free of overhead operation; the time of carrying out the operation in the region that influences the traffic is reduced by a wide margin, traffic safety when having improved the bridge and having gone up and down to shift.
(2) Adaptability: the method is suitable for bridges of various tonnages, and has low requirement on the foundation; the method is suitable for bridge dismantling, replacement and displacement, is suitable for small-tonnage beam pieces and whole-span bridges, and improves the industrialization degree of bridge construction.
(3) And (3) fast: the lifting transfer support is integrally transferred and hoisted, a vehicle set is directly put in place, the field operation time is greatly reduced, and the lifting transfer support has obvious advantages compared with the traditional lifting and jacking; the vehicle set can select the necessary single maximum jacking or descending stroke and the rotation angle according to the engineering requirements; has more efficient operation capability compared with the prior shifting technology.
(4) Economy: the vehicle set and the standardized lifting and moving device can be used repeatedly, the mobility, adaptability and rapid operation of bridge dismantling, replacing or moving are improved, particularly the large-clearance bridge lifting and large-range bridge rotating and moving are realized, the technology has good economical efficiency, and particularly the system of the project has good economical efficiency.
Drawings
FIG. 1 is a structural composition top view of a bridge large-height lifting and shifting device based on a train set;
FIG. 2 is a schematic elevation view of the bridge high-altitude lifting and shifting device based on the train set;
FIG. 3 is a side schematic view of the inner support structure under the beam of the present invention;
FIG. 4 is a side view of the underbeam outer support structure of the present invention;
FIG. 5 is a schematic diagram of a standard connector segment according to the present invention;
FIG. 6 is a schematic diagram of the steps of descending a beam body (beam section of a continuous beam or a simply supported beam) of the bridge high-altitude lifting and shifting equipment based on the train set;
FIG. 7 is a schematic diagram of the steps of jacking a beam body (a whole-span simply supported beam or a continuous beam section) based on a bridge high-altitude lifting and shifting device of a train set;
the labels in the figures show:
1. a support device; 2. an upper distribution beam; 3. supporting the upright post on the beam; 4. a longitudinal bridge connecting sheet; 4a, connecting pieces in the transverse bridge direction; 5. a diagonal brace; 6. converting the connecting beam; 7. an outer column below the beam; 8. an inner column under the beam; 9. inner and outer upright horizontal connecting rods; 9a, an outer upright column horizontal connecting rod; 10. the inner upright post is connected with the horizontal connecting rod in the longitudinal bridge direction; 10a, horizontal bridge-direction horizontal connecting rods of the inner upright posts; 11. flatly cushioning the fixed beam; 12. a vehicle group; 13. leveling cushion blocks; 14. a card slot; 15. a beam body; 16. supporting the center line; 17. cutting a line; 18. a pavement; 19. and (5) pier studs.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides a bridge large-height lifting and moving device based on a set of cars, specifically including a set of cars 12 and a lifting and moving support assembly, where the set of cars 12 is disposed below the lifting and moving support assembly, in this embodiment, the set of cars 12 may be an SPMT, a transportation and erection integrated machine, a multi-kinetic transport vehicle, and the like, and the set of cars 12 integrates a hydraulic system, a control system, and a vehicle system in a conventional method, and can freely lift and move, and a single maximum stroke and a single rotation angle of the set of cars can be configured according to engineering requirements, and can rotate up to 360 °. The vehicle group 12 and the lifting and transporting support assemblies are configured in a set, and in this embodiment, there are at least two sets of vehicle group 12 and lifting and transporting support assemblies.
Referring to fig. 1 to 5, in the present embodiment, the lifting and transporting support assembly specifically includes at least two rows of conversion connecting beams 6 arranged along the longitudinal direction of the beam body 15, a plurality of vertical and parallel under-beam outer columns 7 (in the present embodiment, three under-beam outer columns 7 are provided, and the specific number is configured according to the construction design) are fixedly mounted on the lower portion of each row of conversion connecting beams 6, a plurality of under-beam inner columns 8 arranged parallel to the under-beam outer columns 7 are provided inside the under-beam outer columns 7, the top of the under-beam inner columns 8 is fixedly connected to the bottom of the conversion connecting beams 6, and the bottom of the under-beam inner columns 8 is fixedly connected to the vehicle group 12. The upper portion fixed mounting of conversion tie-beam 6 has a plurality of vertical parallel arrangement's roof beam on the support post 3, fixed mounting has last distributive girder 2 on the roof beam on the support post 3, upward be equipped with on the distributive girder 2 and be used for carrying out the connection support 2 that supports to the roof beam body 15. In this embodiment, the configuration quantity of the upper beam supporting columns 3 is the same as that of the lower beam inner columns 8, and the upper beam supporting columns 3 and the lower beam inner columns 8 are coaxially arranged in the vertical direction, so that the stability of supporting points in the construction process of installation, dismantling and displacement of the lifting and transporting supporting assembly is ensured. In this embodiment, the beam body 15 transfers the load through the upper distribution beam 2 to the on-beam support column 3 and down to the on-beam support column (the under-beam outer column 7, the under-beam inner column 8). The support post 3 on the roof beam all is connected through conversion tie-beam 6 with outer column 7 under the roof beam, interior stand 8 under the roof beam, and interior stand 8 acts on the group of cars through filling up flat fixed beam 11 under the roof beam, and outer column 7 acts on ground cushion 13 of making level under the roof beam.
Referring to fig. 1 to 5, in the present embodiment, the outer column 7 under the beam, the inner column 8 under the beam, and the support column 3 on the beam are all composed of a plurality of standard support sections (of course, in the present embodiment, the standard support sections composed of the outer column 7 under the beam, the inner column 8 under the beam, and the support column 3 on the beam may have the same or different specifications and sizes). And the plurality of standard supporting sections are connected by adopting detachable bolts. In this embodiment, the standard support section is made in factory modular form, and is in the form of a cylinder or square column, but may be in the form of other stable columns.
In this embodiment, the supporting columns 3 on two adjacent rows of beams are connected by a longitudinal bridge to the connecting sheet 4, and the supporting columns 3 on the same row of beams are connected by a transverse bridge to the connecting sheet 4 a. The lower end of the beam upper supporting upright post 3 is connected with a conversion connecting beam 6 through an inclined supporting rod 5. In this embodiment, the upper distribution beam 2 is composed of steel structures or other members whose strength meets the requirements, the connection support 1 is disposed at a position on the upper distribution beam 2 coaxial with the upper beam support column 3 in the vertical direction, so that the load of the beam body is uniformly distributed on several support points, the connection support 1 can be made of flexible materials such as rubber pads and wood, so that the beam body 15 is kept in an original horizontal state, and the load of the beam body is completely transmitted to the support members (the upper beam support column 3, the lower beam outer column 7 and the lower beam inner column 8) at the lower part in the vertical direction.
In this embodiment, the bottom of the support upright 3 on the beam is arranged on the conversion tie beam 6, fixed on the conversion tie beam 6 through bolts or other forms, and reinforced through the diagonal brace 5, the conversion tie beam 6 is arranged in the longitudinal bridge direction, and the material thereof is steel member or other materials meeting the strength requirement. The inclined strut 5 connects the upper supporting upright 3 with the conversion connecting beam 6 through bolts or other reliable forms, so that the structural stability is ensured.
Referring to fig. 1 to 5, in the present embodiment, the inner columns 8 under two adjacent rows of beams are connected by inner column longitudinal bridge horizontal connecting rods 10, and the inner columns 8 under the beams in the same row are connected by inner column transverse bridge horizontal connecting rods 10 a. The beam lower inner upright column 8 and the beam lower outer upright column 7 on the same side are connected through an inner and outer upright column horizontal connecting rod 9, and the beam lower outer upright columns 7 on the same row are connected through an outer upright column horizontal connecting rod 9 a. In this embodiment, two rows of upper beam supporting columns 3, lower beam outer columns 7 and lower beam inner columns 8 are arranged along the longitudinal direction of the beam body 1, and 3 sets of upper beam supporting columns 3, lower beam outer columns 7 and lower beam inner columns 8 are respectively arranged in each row. The arrangement form of the lower beam inner upright column 8 and the upper beam support upright column 3 are coaxially arranged in the vertical direction, and the upper standard connecting section and the lower standard connecting section of the upper beam support upright column 3, the lower beam outer upright column 7 and the lower beam inner upright column 8 are inserted through cylindrical plugs, so that horizontal dislocation is limited, and the structural stability is ensured; its form of standard linkage segment is the round steel post, and the steel column leans on four directions that upper portion position corresponds to weld a lug respectively, and its purpose makes things convenient for the standard linkage segment to hoist, and the transverse connection pole is connected with the standard linkage segment is better simultaneously. The interior stand 8 is connected and can be dismantled through filling up flat fixed beam 11 with group of cars 12 under the roof beam, fills up flat fixed beam 11 and be the steel member of fixed connection on group of cars 12, but interior stand 8 under the jack-up roof beam when group of cars 12 rises, can make interior stand 12 break away from with filling up flat fixed beam 11 under the roof beam when group of cars 12 descends, conveniently demolishs even accurate linkage segment. The outer columns 7 under the beam are respectively arranged in a row on two sides of the vehicle group 12, and the number of the columns along the transverse bridge direction can be reduced according to the stress condition of the bridge.
In the embodiment, in the implementation process of the bridge large-height lifting and shifting equipment based on the train set, when the train set 12 is jacked, the inner column 8 under the beam bears the load of the whole beam body 15, so that the outer column 7 under the beam is separated from the leveling cushion block 13, and at the moment, a section of standard connecting section can be detached or installed from the lower part of the outer column 7 under the beam; when the train set 12 descends, the outer column 7 under the beam is supported on the leveling cushion block 13, so that the inner column 8 under the beam is separated from the train set 12, and at the moment, a section of standard connecting section can be detached or installed from the lower part of the inner column 8 under the beam.
The invention provides two implementation cases for further explanation according to the structure of the bridge large-height lifting and shifting equipment based on the train set.
The first embodiment is as follows:
a method for implementing bridge descending of bridge large-height lifting and shifting equipment based on a set of cars is mainly used for bridge dismantling, the bridge is descended to a safe height for shifting and transporting, and meanwhile the net height requirement of a transportation channel is met, or the bridge is descended to a height capable of being directly and safely chiseled.
As shown in fig. 6, in implementation, the bridge high-altitude lifting and shifting device based on the vehicle set is assembled outside the field, the vehicle set 12 is integrally transported to a designated position at the bottom of the beam body 15, a small section of space is reserved at the bottoms of the upper distribution beam 2 and the beam body 15 for installing and connecting the support 1, so that the support members (the upper support upright 3 of the beam, the lower outer upright 7 of the beam and the lower inner upright 8 of the beam) are ensured to be vertical, the top surface of the flat fixed beam 11 on the vehicle set 12 is horizontal, and the support members are ensured to be firmly connected; after the vehicle set 12 is in place, the vehicle set is jacked upwards to approach the maximum jacking stroke, so that the connecting support 1 is contacted with the bottom of the beam body 15, and the jacking pressure of the vehicle set 12 reaches the designed tonnage; cutting off the beam body 15 in a cutting mode to enable the beam body to be in a downward putting state, wherein all loads of the beam body 15 act on the vehicle set 12 through the inner post 8 under the beam, and the distance between the outer post 7 under the beam and the ground is about one standard connecting section length; the vehicle set 12 is integrally and synchronously descended by the length of one standard connecting section, so that the outer column 7 under the beam falls on the leveling cushion block 13, the vehicle set 12 continues to descend until the counter force of the inner column 8 under the beam is completely converted to the outer column 7 under the beam, the inner column 8 under the beam is emptied, and the standard connecting section of the lowest section of the inner column 8 under the beam is removed; the vehicle set 12 is integrally and synchronously lifted for about the distance of one connecting section until the leveling fixed beam 11 is completely contacted with the lower beam inner upright post 8 and bears the whole load of the lower beam outer upright post 8, so that the lower beam outer upright post 7 is separated from the leveling cushion block 13, and the standard connecting section of the lowest section of the lower beam outer upright post 7 is removed; and circulating the synchronous jacking and descending operation in front, sequentially and respectively removing the standard connecting sections of the lowest sections of the inner upright columns 8 and the outer upright columns 7 under the beams, so that the beam bodies are alternately lowered until the inner upright columns 8 under the beams are completely removed, the conversion connecting beam 6 is located on the flat fixed beam 11, and then the beam bodies are subjected to related treatment or moved to a specified position for construction and installation.
The second embodiment:
the bridge is prefabricated or cast-in-place constructed at a low elevation position, the bridge is jacked to a designed elevation in a jacking mode and then installed, or the low prefabricated bridge is safely transported to a specified place and falls on a pier after jacking and translation.
As shown in fig. 7, in implementation, the conversion connecting beam 6 and the above structures are assembled on the vehicle set 12, the leveling fixing beam 11 is arranged between the conversion continuous beam 6 and the vehicle set 12 in the longitudinal direction, then the low-position prefabricated beam body 15 is safely transported to the position near a designated installation point through the vehicle set 12, and is horizontally distanced from a pier column, so that the beam body 15 can be smoothly lifted, and at the moment, the load of the beam body is completely acted on the vehicle set 12; after the vehicle set 12 is in place, field debugging is carried out, so that support structural support members (the upper beam support upright 3, the lower beam outer upright 7 and the lower beam inner upright 8) are vertical, and the flat-cushion fixed beam 11 is horizontal; after debugging is finished, synchronously jacking the vehicle group 12, so that the distance between the lower outer upright post 7 of the beam and the ground exceeds the length of a standard connecting section, and adding a section of standard connecting section at the lowest end of the lower outer upright post 7 of the beam; the whole vehicle group 12 descends synchronously, the outer column 7 under the beam falls on the leveling cushion block 13 until the counter force of the inner column 8 under the beam is completely converted to the outer column 7 under the beam, at the moment, the vehicle group continues descending, so that the inner column 8 under the beam and the leveling fixing beam 11 are separated by more than one standard connecting section length, and one section of standard connecting section is added at the lowest end of the inner column under the beam; circulating the previous jacking and descending steps, sequentially and respectively adding a section of standard connecting section at the lowest part of the inner upright post 8 and the outer upright post 7 under the beam to enable the beam body to be jacked step by step until the designed jacking height is reached, and adding a transverse connecting rod piece for ensuring the integral stability of the upright posts when the standard connecting section is added; and after the vehicle set 12 is moved to a specified installation point, the beam body is placed down, the step is the same as the first implementation step, until the beam body accurately falls on the pier stud, the vehicle set lifting and moving equipment is withdrawn, and then the beam body is treated in a related manner.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A bridge large-height lifting and shifting device based on a set of cars comprises a set of cars (12) and a lifting and shifting support assembly, wherein the set of cars (12) is arranged at the lower part of the lifting and shifting support assembly, and the lifting and shifting support assembly comprises:
the conversion connecting beam comprises at least two rows of conversion connecting beams (6) which are longitudinally arranged along a beam body (15), wherein the lower part of each row of conversion connecting beams (6) is fixedly provided with a plurality of vertical and parallel under-beam outer columns (7), a plurality of under-beam inner columns (8) which are parallel to the under-beam outer columns are arranged on the inner sides of the under-beam outer columns (7), the tops of the under-beam inner columns (8) are fixedly connected with the bottoms of the conversion connecting beams (6), and the bottoms of the under-beam inner columns (8) are fixedly connected with a vehicle group (12);
a plurality of beam upper supporting columns (3) which are vertically arranged in parallel are fixedly arranged on the upper part of the conversion connecting beam (6), an upper distributing beam (2) is fixedly arranged on each beam upper supporting column (3), and a connecting support (1) for supporting a beam body (15) is arranged on each upper distributing beam (2);
outer post (7) under the roof beam, inner column (8) under the roof beam, support post (3) on the roof beam are supported the section by a plurality of standards and are constituteed, adopt detachable bolted connection between a plurality of standard support sections.
2. The bridge high-altitude lifting and shifting equipment based on the train set as claimed in claim 1, wherein: the standard supporting sections are all made in a modularized mode, and the cross section of each standard supporting section is cylindrical, square-column-shaped or other stable columns.
3. The bridge high-altitude lifting and shifting equipment based on the train set as claimed in claim 1, wherein: the supporting columns (3) on two adjacent rows of beams are connected through a longitudinal bridge to the connecting sheet (4), and the supporting columns (3) on the same row of beams are connected through a transverse bridge to the connecting sheet (4 a).
4. The bridge high-altitude lifting and shifting equipment based on the train set as claimed in claim 1, wherein: the lower end of the beam upper supporting upright post (3) is connected with the conversion connecting beam (6) through an inclined supporting rod (5).
5. The bridge high-altitude lifting and shifting equipment based on the train set as claimed in claim 3, wherein: the lower inner columns (8) of two adjacent rows of beams are connected through the inner column longitudinal bridge horizontal connecting rod (10), and the lower inner columns (8) of the same row of beams are connected through the inner column transverse bridge horizontal connecting rod (10 a).
6. The bridge high-altitude lifting and shifting equipment based on the train set as claimed in any one of claims 3 to 5, wherein: the beam lower inner upright (8) and the beam lower outer upright (7) on the same side are connected through inner and outer upright horizontal connecting rods (9), and the beam lower outer uprights (7) in the same row are connected through outer upright horizontal connecting rods (9 a).
7. The bridge high-altitude lifting and shifting equipment based on the train set as claimed in claim 1, wherein: a flat-cushion fixed beam (11) is fixedly arranged on the vehicle group (12), and the bottom of the inner upright post (8) under the beam is connected with the vehicle group (12) through the flat-cushion fixed beam (11).
8. The method for implementing the bridge descending of the bridge high-altitude lifting and shifting equipment based on the train set according to any one of claims 1 to 7 is characterized by comprising the following steps:
s1, completing the assembly of the bridge large-height lifting and shifting equipment based on the vehicle set outside the field, integrally hauling the vehicle set to a designated position at the bottom of the beam body, and reserving a small section of space installation connecting support between the upper distribution beam and the bottom of the beam body;
s2, jacking the trolley set upwards to approach the maximum jacking stroke, enabling the support to be in contact with the bottom of the beam body, and enabling the jacking pressure of the trolley set to reach the designed tonnage;
s3, cutting off the beam body in a cutting mode to enable the beam body to be in a downward putting state, wherein all loads of the beam body act on the vehicle set through the inner upright post under the beam body, and the outer upright post under the beam body is enabled to be away from the ground by a standard connecting section length;
s4, the vehicle set is lowered synchronously by the length of one standard connecting section to enable the outer upright posts under the beams to fall on the leveling cushion blocks, the vehicle set continues to be lowered until the counter force of the inner upright posts under the beams is completely converted to the outer upright posts under the beams, the inner upright posts under the beams are emptied, and the standard connecting section of the lowest section of the inner upright posts under the beams is removed;
s5, synchronously jacking the vehicle group to a distance of a connecting section until the leveling fixed beam is completely contacted with the inner upright post under the beam and bears the whole load of the outer upright posts under all the beams, so that the outer upright posts under the beam are separated from the leveling cushion block, and the standard connecting section of the lowest section of the outer upright posts under the beam is removed;
s6, circulating the steps S4 and S5, enabling the beam bodies to be alternately lowered until the beam bodies are lowered to the designed height, further carrying out relevant treatment on the beam bodies, and directly moving the beam bodies to the designated positions for construction and installation.
9. The method for implementing the bridge jacking, shifting and installing of the bridge large-height lifting and shifting equipment based on the train set according to any one of claims 1 to 7 is characterized by comprising the following steps:
s1, assembling the conversion connecting beam and the components on the vehicle group, and arranging a flatly-padded fixed beam between the conversion continuous beam and the vehicle group in the longitudinal bridge direction;
s2, safely conveying the low-position prefabricated beam body to a designated mounting point through a vehicle set, horizontally moving the beam body to a certain distance away from the pier stud, and ensuring that the beam body can be smoothly lifted, wherein the load of the beam body is completely acted on the vehicle set;
s3, after the vehicle set is in place, performing on-site debugging to ensure that the supporting structure is vertical and the flat-cushion fixed beam is horizontal;
s4, after debugging is completed, synchronously jacking the vehicle set, enabling the distance between the lower outer upright post of the beam and the ground to exceed the length of a standard connecting section, and adding a section of standard connecting section at the lowest end of the lower outer upright post of the beam;
s5, the vehicle group descends integrally and synchronously, the outer column under the beam falls on the leveling cushion block until the counter force of the inner column under the beam is completely converted to the outer column under the beam, at the moment, the vehicle group descends continuously, the inner column under the beam and the leveling fixing beam are separated by more than one standard connecting section length, and one section of standard connecting section is added at the lowest end of the inner column under the beam;
s6, circulating steps S4 and S5, and sequentially and respectively adding a section of standard connecting section at the lowest part of the inner upright post and the outer upright post under the beam to enable the beam body to be gradually jacked until the designed jacking height is reached;
and S7, after the vehicle group moves to the designated mounting point, the beam body is placed down until the beam body accurately falls on the pier stud, and the vehicle group lifting and moving equipment is withdrawn, so that the beam body is treated relatively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910453174.6A CN110528405B (en) | 2019-05-28 | 2019-05-28 | Bridge high-altitude lifting and shifting device based on vehicle set and construction method thereof |
| PCT/CN2020/092698 WO2020238984A1 (en) | 2019-05-28 | 2020-05-27 | Vehicle-group-based apparatus for large-height lifting and shifting of bridge, and implementation method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910453174.6A CN110528405B (en) | 2019-05-28 | 2019-05-28 | Bridge high-altitude lifting and shifting device based on vehicle set and construction method thereof |
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| CN110528405A CN110528405A (en) | 2019-12-03 |
| CN110528405B true CN110528405B (en) | 2022-01-07 |
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| CN201910453174.6A Active CN110528405B (en) | 2019-05-28 | 2019-05-28 | Bridge high-altitude lifting and shifting device based on vehicle set and construction method thereof |
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| WO2020238984A1 (en) | 2020-12-03 |
| CN110528405A (en) | 2019-12-03 |
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