CN113668388A - Pier-beam cooperative integral rapid installation and removal method based on vehicle-mounted equipment - Google Patents
Pier-beam cooperative integral rapid installation and removal method based on vehicle-mounted equipment Download PDFInfo
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- CN113668388A CN113668388A CN202110796066.6A CN202110796066A CN113668388A CN 113668388 A CN113668388 A CN 113668388A CN 202110796066 A CN202110796066 A CN 202110796066A CN 113668388 A CN113668388 A CN 113668388A
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- 239000004567 concrete Substances 0.000 claims description 15
- 238000005728 strengthening Methods 0.000 claims description 7
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- 238000011065 in-situ storage Methods 0.000 claims description 3
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- 238000010276 construction Methods 0.000 abstract description 22
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- 238000012546 transfer Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a method for quickly mounting a pier beam in a cooperative and integral manner based on vehicle-mounted equipment, which comprises the following steps: s0: integrally prefabricating a whole span bridge and a bridge pier; synchronously constructing a bridge foundation and a connecting bearing platform in the bridge location area; s1: rapidly transferring the whole span bridge to a plane position set by a bridge position; s2: moving the bridge pier to the upper part of a connecting cushion cap of the bridge position area and the lower part of the whole span bridge according to design requirements by adopting bridge pier vehicle-mounted equipment; s3: placing and positioning the bridge pier, and effectively solidifying the bridge pier and the connecting bearing platform by adopting an upper embedded part and a lower embedded part; s4: lowering the whole span bridge to the position above the bridge pier; s5: and finishing the subsequent work and durability protection after the bridge is installed. The invention also discloses a method for rapidly removing the pier beam together with the vehicle-mounted equipment. The invention provides a brand-new and upgraded construction method for constructing and dismantling bridges and pier columns, solves the technical problem of quick installation and dismantling of prefabricated pier beams, and has the advantages of safety, reliability, rapidness and high efficiency.
Description
Technical Field
The invention relates to the technical field of collaborative construction of an upper structure and a lower structure of a bridge. More specifically, the invention relates to a method for quickly installing and dismantling a pier beam based on vehicle-mounted equipment in a cooperative and integral manner.
Background
When pier beam installation construction is carried out at bridge crossing positions and areas with large traffic flow and pedestrian flow, the pier beams are often required to be quickly installed and dismantled within 6 hours, so that the fully-prefabricated assembled bridge is provided, and main components of an upper structure and a lower structure of the bridge are prefabricated in a factory or a prefabricated field and assembled on site. The existing whole-span bridge prefabrication and assembly technology is relatively mature, and the construction technology comprises a balanced cantilever assembly method, a hole-by-hole assembly method, a whole-hole frame method and the like. The precast and assembled construction of the beam pier columns is usually applied to multi-span bridges on water, and is less applied to the construction of urban viaducts. When the existing urban overhead bridge is prefabricated and assembled, the pier stud is hoisted and connected with a foundation by a crane, and then the hoisting capping beam is spliced with the pier stud to form a whole body, wherein the hoisting capability is often met. However, there is not enough space for installation and removal within the limited space, and the conventional construction method of pier-first and beam-second cannot meet the requirement, so a completely new construction method needs to be provided to meet the requirement that the pier does not affect the installation of the beam.
In addition, in the actual assembly of the fully-prefabricated bridge, a crane and other conventional hoisting transportation are often adopted, so that a large amount of hoisting platform cost is consumed; meanwhile, due to the fact that the traffic volume of the urban overpass bridge is large, the conventional construction method and the conventional connecting device cannot meet the requirement of the cooperative, rapid and efficient assembling of the upper portion and the lower portion of the bridge. How to guarantee the mound roof beam and assemble joint strength in time, realize that prefabricated mound roof beam is assembled in coordination fast, reduce the influence of construction to the traffic, be the problem that needs solve at present urgently.
Disclosure of Invention
The invention aims to provide a method for quickly installing and removing a pier beam based on vehicle-mounted equipment in a coordinated and integral mode, solves the technical problem of quick installation and removal of a prefabricated pier beam, and has the advantages of safety, reliability, quickness and high efficiency.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a method for cooperative integral quick installation of pier beams based on vehicle-mounted equipment, comprising the steps of:
s0: after the whole span bridge and the bridge piers are designed, the whole bridge and the bridge piers are prefabricated on the pedestal of the non-bridge position area in a matching mode, and upper embedded parts are correspondingly arranged on the lower bottom surfaces of the pier columns when the bridge piers are prefabricated; synchronously constructing a bridge foundation and a connecting bearing platform in the bridge location area, and correspondingly arranging lower embedded parts on the connecting bearing platform when the connecting bearing platform is cast in situ;
s1: the method is characterized in that a bridge pier is not installed, the whole span bridge is rapidly transferred to a plane position set by a bridge position directly through the functions of jacking, transferring and descending of vehicle-mounted equipment of the whole span bridge, and sufficient installation clearance is reserved;
s2: the method comprises the following steps of moving a bridge pier to the position above a connecting bearing platform of a bridge location area and the position below a whole-span bridge positioned in advance according to design requirements by adopting the functions of jacking, moving and descending of bridge pier vehicle-mounted equipment;
s3: the method comprises the following steps of (1) lowering and positioning a pier to a designed position by adopting the lifting function of pier vehicle-mounted equipment, completing the adjustment of the levelness and the verticality of the pier, effectively solidifying the pier and a connecting bearing platform by adopting a connection mode of an upper embedded part and a lower embedded part which are designed in advance, and removing the pier vehicle-mounted equipment;
s4: after necessary measures are adopted to ensure that the bridge pier and the connecting bearing platform are stably fixed, the whole bridge span is placed above the support above the bridge pier according to the design requirement by adopting the moving function and the lifting function of the whole bridge span vehicle-mounted equipment, and then the whole bridge span vehicle-mounted equipment is removed;
s5: and finishing the subsequent work and durability protection after the bridge is installed.
Preferably, for a pier with multiple pier columns, the method for prefabricating the connecting bearing platform and the lower embedded parts thereof in the step S0 specifically comprises the following steps:
s01: binding and connecting the main ribs of the bearing platform, and binding and arranging reinforcing ribs on the inner sides of the main ribs of the connecting bearing platform;
s02: the connecting bearing platform is internally provided with a plurality of lower embedded parts, the positions of the lower embedded parts correspond to a plurality of pier columns of the pier one by one, each lower embedded part comprises a lower panel, a plurality of shear keys and shear key circumferential ribs, the plurality of shear keys are embedded in a circle in a circumferential manner, the plurality of shear keys are provided with reserved holes and sequentially penetrate through the shear keys and the circumferential ribs to form a closed integrated structure, the upper surfaces of the plurality of shear keys are welded with the lower panels and are parallel to the upper surface of the connecting bearing platform, and the upper ends of the main ribs and the reinforcing ribs penetrate into the lower panel and are welded and fixed;
s04: and arranging a connecting bearing platform template and pouring to meet the design strength requirement.
Preferably, for a pier with multiple piers, the method for prefabricating the pier and the upper embedded parts on the pier in the step S0 specifically includes:
the design position department of every pier stud at the pier sets up pours the die block, places the top panel on the die block, and a plurality of shear force keys are all provided with the preformed hole and pass the back through shear force key ring to the muscle and form closed integral type structure to the fixed a plurality of shear force keys of hoop round on the top panel, set up the main muscle of ligature and the strengthening rib of pier stud, and main muscle and strengthening rib are all worn into in the top panel and welded fastening, pour the pier stud and the bent cap on it and reach the design strength requirement.
Preferably, in step S3, the specific method for effectively fixing the pier and the connecting cap by the upper embedded part and the lower embedded part includes: the upper panel and the lower panel are both of annular structures with grouting areas in the centers, the upper panel of the pier stud and the lower panel connected with the bearing platform are welded firstly, and then the grouting areas are grouted and fixed through grouting joints reserved on the panels.
Preferably, for a pier with multiple piers, the method for prefabricating the connecting cap and the lower embedded part thereof in the step S0 further comprises the steps of S03: a plurality of grouting sleeves are circumferentially arranged on the outer side of the lower panel of each lower embedded part at intervals, and the upper ends of the grouting sleeves are flush with the upper surface of the connecting bearing platform so as to form a plurality of vertical grouting channels which penetrate through the outer part of the connecting bearing platform in the connecting bearing platform;
in step S3, the method for effectively fixing the pier and the connection platform by the upper embedded part and the lower embedded part specifically includes: the vertical bars along the column height direction are arranged in the circumferential circle outside the pier column and extend out of the bottom of the pier, a plurality of vertical bars are inserted into a plurality of grouting sleeves in a one-to-one correspondence mode, the length of the vertical bars extending out of the bottom of the pier meets the anchoring length of the grouting sleeves, the vertical bars are fixed in grouting in the grouting sleeves, the vertical bars are horizontally arranged on the vertical bars, the vertical bars and the planted bars are in lap joint to form a whole, and the poured concrete is wrapped to form the vertical bars and the planted bars form a reinforcing structure.
Preferably, for the pier of the single pier column, the method for prefabricating the connecting bearing platform and the lower embedded part thereof in the step S0 specifically comprises the following steps:
binding main ribs, placing a prefabricating tool, wherein the prefabricating tool comprises a steel panel and a plurality of grouting sleeves, the steel panel is of a frame structure, a plurality of through holes are formed in the frame edge of the steel panel at intervals, the grouting sleeves correspond to the through holes one by one and are vertically fixed on the lower bottom surface of the steel panel, the grouting sleeves are communicated with the through holes, the steel panel is flush with the upper surface of the connecting bearing platform, the upper parts of the main ribs are correspondingly positioned at the lower parts of the grouting sleeves one by one, and the prefabricating tool is supported in the connecting bearing platform through a support frame; arranging a connecting bearing platform template and pouring to meet the design strength requirement;
for the pier with a single pier stud, in the method for prefabricating the pier and the upper embedded parts on the pier stud in the step S0, the upper embedded parts are that the main ribs of the pier downwards protrude out of the lower bottom surface of the pier stud;
in step S3, the concrete method for effectively consolidating the pier and the connection bearing platform by the upper embedded part and the lower embedded part includes: and inserting the main ribs of the pier into the grouting sleeve in a downward one-to-one correspondence manner, and grouting in the grouting sleeve to realize the quick connection of the pier and the connecting bearing platform.
Preferably, the upper surface of the connecting bearing platform is also provided with a cushion layer, and a grouting hole is formed in the cushion layer.
Preferably, the vehicle-mounted equipment for the whole-span bridge comprises:
the two sets of the car groups are arranged in parallel at intervals, and the direction of the car groups is vertical to the driving direction road of the whole span bridge;
the bridge frock is striden entirely, it all sets up one on every group set of cars, the bridge frock is striden entirely includes:
the I-shaped steel of the whole span bridge comprises a plurality of transverse I-shaped steels and a plurality of longitudinal I-shaped steels, wherein the transverse I-shaped steels are arranged at intervals along the length direction of the train set, two ends of the transverse I-shaped steel extend to the outside of two sides of the width direction of the train set, the transverse I-shaped steel is fixed on the train set, the longitudinal I-shaped steels are arranged at intervals along the width direction of the train set, two ends of the longitudinal I-shaped steel are positioned in the length direction of the train set and in the plane of the whole span bridge, and the longitudinal I-shaped steel is arranged on the lower bottom surface of the whole span bridge;
the whole-span bridge steel pipe is vertically arranged, the junctions of the plurality of transverse I-shaped steels and the plurality of longitudinal I-shaped steels are respectively provided with one steel pipe, and the whole-span bridge steel pipe is connected with the whole-span bridge I-shaped steel through a flange plate;
the connecting channel steel is transversely and obliquely connected between the adjacent whole-span bridge steel pipes at intervals along the height direction;
and the inclined strut channel steel is connected between the part of the transverse I-shaped steel extending out of the vehicle group and the whole-span bridge steel pipe.
Preferably, the pier-mounted equipment includes:
the two sets of the car groups are arranged in parallel at intervals, and the direction of the car groups is consistent with the driving direction of the whole bridge;
the beam carrying support comprises two bailey frames, the bailey frames are arranged on two sides of a pier column and are vertical to the direction of a vehicle group, and the beam carrying support is fixed on the vehicle group;
pier stud frock, it sets up the multiunit at the interval on carrying the roof beam support, pier stud frock all is located the pier stud inboard, and every pier stud frock of group includes:
the pier column I-steel comprises a plurality of groups, each group of pier column I-steel comprises an upper I-steel and a lower I-steel which are respectively parallel up and down and are arranged along the direction of the train set, the lower I-steel is fixed on the bailey frame through a flange plate, and a cushion block is arranged at the joint of the upper I-steel and the cover beam and used for supporting the cover beam;
the pier column steel pipes are double-row steel pipes and are supported between the upper I-shaped steel and the lower I-shaped steel of each group;
and the connecting support is used for connecting the adjacent upper I-shaped steel and the lower I-shaped steel along the direction of the vehicle group.
The invention also provides a method for quickly dismantling the pier beam cooperated with the whole based on the vehicle-mounted equipment, which comprises the following steps:
a: respectively supporting a whole-span bridge and a bridge pier through whole-span bridge vehicle-mounted equipment and bridge pier vehicle-mounted equipment;
b: removing the connection between the whole-span bridge and the bridge pier, and lifting the whole-span bridge integrally by using the lifting function of the vehicle-mounted equipment of the whole-span bridge;
c: pre-jacking the whole pier by using the jacking function of the vehicle-mounted equipment of the pier, cutting the concrete section at the lower end of the pier basically along the lower part of the pier close to the ground, and transferring to a beam-falling field to fall the pier by using the transferring and descending function of the vehicle-mounted equipment of the pier and a predetermined route;
d: the method comprises the following steps of (1) utilizing the functions of moving and descending of the vehicle-mounted equipment of the whole-span bridge and moving the equipment to a beam falling site along a preset route to fall the beam;
e: and finishing the subsequent work.
The invention at least comprises the following beneficial effects:
the invention adopts vehicle-mounted equipment for auxiliary construction, and has the advantages of good adaptability, simple structure, convenient manufacture, good operability, safety, reliability, good economy, good application prospect and the like.
The adaptability is good: the transfer route of the vehicle-mounted equipment, the position of the train set, and the form and the size of the beam-carrying support and the tool can be set according to the site condition and the structural size of the whole-span bridge and pier.
The structure is simple: the vehicle-mounted beam carrying support and the tool are common structural forms and simple in structure only by simply forming a vehicle set and combining section steel, steel pipes, channel steel and the like.
The preparation is convenient: the train set and other components required by the equipment are formed products on the market, and the assembling and reasonable organization can be realized through simple assembling.
The operability is good: the lifting and moving operation of the vehicle group is simple, the welding, the assembling and the like are common and mature processes, and the lifting and the dropping of the pier beam can be completed only by operating the vehicle group.
Safe and reliable: the line of sight of the operation of the train set is good, and unstable factors caused by using hoisting equipment such as a crane and the like are avoided; the vehicle set is used in multiple projects, the equipment process is mature, and the operation is simple; each component of the system assembly has high safety; the working condition of the construction process is stable, the control is convenient, and the construction technology risk is small.
Good economical efficiency: on one hand, the vehicle-mounted equipment mainly comprises market molding products, is simple to assemble and process, and the equipment for realizing the cooperative and rapid installation of the pier beam has low cost; the equipment site only needs to assemble the forming components of each part, and the operation is simple; the platform cost of the hoisting equipment is reduced. On the other hand, the pier beam prefabrication and the connection bearing platform pouring can be carried out simultaneously, the prefabricated pier column assembling and positioning are efficient and simple, the construction speed can be increased, the construction period is shortened, the influence on traffic is small, and the economic and social benefits are better.
The application prospect is good: the moving and transporting equipment for the cooperative and rapid installation of the pier beam can realize the rapid and efficient installation of the pier beam, and shows good technical characteristics and excellent economic performance, so that the moving and transporting equipment has obvious social benefits for urban overpass bridge engineering with large traffic flow and has good application prospects. Meanwhile, the vehicle-mounted equipment can also be applied to projects such as other forms of concrete member installation, and the application field of the vehicle-mounted equipment is greatly expanded.
Secondly, the pier-beam cooperative integral quick installation method based on the vehicle-mounted equipment can realize quick and accurate pier-beam cooperative installation in a narrow space, the traditional method of firstly hoisting and installing the piers and then moving and transporting the whole span bridge to drop the beam is not suitable for the construction of the application, and the pier columns on two sides influence the smooth passing of the vehicle-mounted equipment of the whole span bridge.
The method for rapidly dismantling the pier beam based on the vehicle-mounted equipment in cooperation with the whole is also a brand new dismantling method, the whole-span bridge is removed after the pier is dismantled by jacking the whole-span bridge, and the technical problem that the whole-span bridge cannot be smoothly moved out due to the fact that the vehicle-mounted equipment enters the lower part of the whole-span bridge and is blocked by the piers on two sides after the whole-span bridge is consigned during dismantling is solved.
The method for cooperatively and quickly installing and dismantling the pier beam completely changes the conventional construction method, so that the connection of the multi-pier and the connecting bearing platform can not use the conventional hoisting and splicing mode any more.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic plan view of a core installation for the cooperative quick installation of pier beams;
FIG. 2 is a schematic elevation view of core equipment for cooperative quick installation of pier beams;
FIG. 3 is a schematic view of an upright surface of the equipment for moving and installing bridge piers;
FIG. 4 is a schematic side elevation view of the installation for bridge pier transfer installation;
FIG. 5 is a schematic elevation view of the equipment for the transfer installation of the whole span bridge;
FIG. 6 is a schematic side elevation view of the rig for the transfer installation of a full span bridge;
FIG. 7 is a schematic elevation view of a connecting structure and a reinforcing structure for a multi-pier and a connecting cap;
FIG. 8 is a schematic plan view of a connection bearing platform at the connection between a multi-pier and the connection bearing platform;
FIG. 9 is a schematic plan view of a reinforcing structure for a joint between a multi-pier and a joint cap;
FIG. 10 is a schematic plan view of a reinforcing structure at a pier column at the joint of a multi-pier column pier and a connecting cushion cap;
fig. 11 is a schematic elevation view of a connection structure between a single pier column pier and a connection cap.
Description of reference numerals:
1. the steel-reinforced concrete bridge comprises a vehicle set, 2.1 parts of bailey frames, 3.1 parts of pier stud I-steel, 3.2 parts of pier stud steel pipes, 3.3 parts of connecting supports, 4.1 parts of full-span bridge I-steel, 4.2 parts of full-span bridge steel pipes, 4.3 parts of connecting channel steel, 4.4 parts of diagonal supporting channel steel, 5 parts of full-span bridges, 6.1 parts of cover beams, 6.2 parts of pier studs, 7 parts of connecting bearing platforms, 10.1 parts of main ribs, 10.2 parts of reinforcing ribs, 10.3 parts of shear keys, 10.4 parts of shear key circumferential ribs, 10.5 parts of grouting joints, 10.6 parts of lower panels, 10.7 parts of upper panels, 10.8 parts of vertical ribs, 10.9 parts of reinforcing bars, 10.10 parts of grouting sleeves, 10.11 parts of steel panels, 10.12 parts of supporting frames, 10.13 parts of high-rise cushions.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 11, the invention provides a method for quickly installing pier beams based on vehicle-mounted equipment in a coordinated and integral manner, which comprises the following steps:
s0: after the whole span bridge 5 and the bridge piers are designed, the whole bridge piers are prefabricated on the pedestal of the non-bridge area in a matching mode, and upper embedded parts are correspondingly arranged on the lower bottom surfaces of the pier columns 6.2 when the bridge piers are prefabricated; synchronously constructing a bridge foundation and a connecting bearing platform 7 in the bridge location area, and correspondingly arranging lower embedded parts on the connecting bearing platform 7 when the connecting bearing platform 7 is cast in situ; when the bridge pier is prefabricated, the bridge pier is matched with a connecting bearing platform 7 and the whole span bridge 5, single pier columns correspondingly matched on the connecting bearing platform 7 are grouting sleeves, and multiple pier columns are embedded steel plate panels;
s1: the method comprises the following steps that (1) a bridge pier is not installed, the whole span bridge is rapidly transferred to a plane position set by a bridge position directly through the jacking, transferring and descending functions of vehicle-mounted equipment of the whole span bridge, and enough installation clear height is reserved, wherein the installation clear height is generally 40-50 cm;
s2: the method comprises the following steps that by adopting the functions of jacking, moving and descending of bridge pier vehicle-mounted equipment, a bridge pier is moved to the position above a connecting bearing platform 7 in a bridge position area and the position below a whole-span bridge which is positioned in advance according to design requirements, and a certain clear height exists between the lowest part of a single pier or a plurality of piers and the connecting bearing platform 7;
s3: the method comprises the following steps of (1) lowering and positioning a pier to a designed position by adopting the lifting function of pier vehicle-mounted equipment, completing the adjustment of the levelness and the verticality of the pier, effectively solidifying the pier and a connecting bearing platform 7 by adopting a connection mode of an upper embedded part and a lower embedded part which are designed in advance, and removing the pier vehicle-mounted equipment; the grouting sleeve is effectively grouted for the single pier column, meanwhile, a plurality of temporary brackets are arranged on the single pier column in a circle, steel plates are correspondingly arranged on the connecting bearing platform 7, and the temporary brackets are connected with the steel plates through screws so as to ensure that the relative position between the single pier column and the connecting bearing platform 7 is not changed when the whole span bridge 5 is put down, and the strength of grout can meet the requirement after grouting for at least 24 hours; for the multi-pier stud, temporary connection, namely temporary welding and fixing of an upper embedded part and a lower embedded part, can be adopted, and during subsequent work, permanent connection, namely reinforced connection, can be carried out, and temporary connection and permanent connection can also be adopted, and the work of lowering the whole span bridge 5 can be carried out simultaneously; in the process of the consolidation of the single pier column and the multiple pier columns, grouting can be performed subsequently according to actual construction conditions, and the single pier columns are connected in advance through screws or the multiple pier columns are connected in advance through steel plates in a welding mode;
s4: after necessary measures are adopted to ensure that the bridge pier and the connecting bearing platform 7 are stably fixed, the necessary measures are the effective fixing mode, the whole span bridge 5 is placed above a support above the bridge pier according to the design requirement by adopting the moving function and the lifting function of the whole span bridge vehicle-mounted equipment, the support is placed in advance, and then the whole span bridge vehicle-mounted equipment is removed; the vehicle-mounted equipment needs to have enough lifting height and synchronism to meet the construction requirement; one specific structure of the vehicle-mounted equipment is a vehicle set 1, and the vehicle-mounted equipment has the functions of lifting, moving, steering and the like;
s5: and finishing the subsequent work and durability protection after the bridge is installed.
In the technical scheme, before the pier beam is moved and assembled in coordination, a field for prefabricating and parking the whole span bridge 5 and the piers needs to be arranged, and the foundation and the flatness of the moving and transporting line are processed. The pier beams are all moved and transported to be lifted through vehicle-mounted equipment, if the pier beams are vertically hoisted and fixed firstly according to a conventional mode and then moved and transported to fall into the bridge assembly of the whole-span bridge 5, the pier beams can not smoothly enter the bridge assembly between the piers due to the blocking effect of the piers installed on two sides, the pier beams can be quickly assembled in a coordinated mode by adopting the technical scheme, the whole-span bridge 5 and the pier beams are prefabricated firstly, the whole-span bridge 5 is cast-in-place synchronously to be connected with the bearing platform 7, the whole-span bridge 5 is moved and transported in place, the pier beams are horizontally moved to the connecting bearing platform 7 below the whole-span bridge 5 from the side surface, the conventional hoisting and inserting mode is not adopted, the quick and collaborative assembly of the prefabricated pier beams is completed, the accuracy is high, and the assembly construction is quick and efficient. The structure and the swing mode of the support in the application are not limited to that the beam is transverse and the pier is longitudinal, and only one direction is customized for convenience of description.
In another technical solution, as shown in fig. 7 to 9, for a pier with multiple pier columns, the method for prefabricating the connection bearing platform 7 and the lower embedded part thereof in step S0 specifically includes:
s01: binding and connecting a main rib 10.1 of the bearing platform 7, and binding and arranging a reinforcing rib 10.2 on the inner side of the main rib 10.1 of the connecting bearing platform 7;
s02: the connecting bearing platform 7 is also internally provided with a plurality of lower embedded parts, the positions of the lower embedded parts correspond to a plurality of pier columns 6.2 of a pier one by one, each lower embedded part comprises a lower panel 10.6, a plurality of shear keys 10.3 and shear key circumferential ribs 10.4, the plurality of shear keys 10.3 are circumferentially embedded in a circle, each shear key 10.3 is provided with a reserved hole and sequentially penetrates through the shear key circumferential ribs 10.4 to form a closed integrated structure, the upper surfaces of the plurality of shear keys 10.3 are welded with the lower panel 10.6 which is parallel and level to the upper surface of the connecting bearing platform 7, and the upper ends of the main ribs 10.1 and the reinforcing ribs 10.2 penetrate into the lower panel 10.6 and are welded and fixed;
s04: and arranging a connecting bearing platform 7 template and pouring to meet the design strength requirement.
In the technical scheme, the connecting bearing platform 7 is embedded into a lower embedded part when being prefabricated, a main rib 10.1 and a reinforcing rib 10.2 of the connecting bearing platform 7 are arranged in a conventional binding mode, then a shear key 10.3 and an annular rib on the shear key are arranged at the design position of the lower embedded part, a preformed hole in the shear key 10.3 can be a hole, a double-hole or multi-hole trapezoidal plate, a square plate or a triangular plate, and the arrangement of the shear key 10.3 and the annular rib on the shear key prevents a lower panel 10.6 at the connecting position from sliding and separating with the connecting bearing platform 7 and a pier stud 6.2, so that the lower panel, the connecting bearing platform 7 and the pier stud form a whole. The connecting bearing platform 7 is fixedly connected with the pier stud 6.2 through the lower panel 10.6.
In another technical solution, as shown in fig. 7 to 10, for a pier with multiple pier columns, the method for prefabricating the pier and the upper embedded parts on the pier column 6.2 in the step S0 specifically includes:
the design position department of every pier stud 6.2 at the pier sets up pours the die block, place top panel 10.7 on the die block, go up the fixed a plurality of shear force keys 10.3 of hoop round on top panel 10.7, a plurality of shear force keys 10.3 all are provided with the preformed hole and pass the back through shear force key hoop muscle 10.4 and form closed integral type structure, the ligature owner muscle 10.1 and the strengthening rib 10.2 that set up pier stud 6.2, main muscle 10.1 and strengthening rib 10.2 are all worn into in the top panel 10.7 and welded fastening, pour pier stud 6.2 and the bent cap 6.1 on it and reach the design strength requirement.
In the above technical solution, the shear key 10.3 is pre-embedded when the pier stud 6.2 is prefabricated, so as to fix the upper panel 10.7 to the lower end of the pier stud 6.2, and thus the pier stud 6.2 and the connecting bearing platform 7 are welded and fixed through the upper panel 10.7 and the lower panel 10.6. The shear key 10.3 and the circumferential ribs thereon are all pre-embedded in the pier stud 6.2, and the arrangement of the shear key is consistent with the arrangement mode and structure in the connecting bearing platform 7.
In another technical solution, in the step S3, a specific method for the upper embedded part and the lower embedded part to effectively fix the pier and the connecting platform 7 includes: the upper panel 10.7 and the lower panel 10.6 are both of annular structures with grouting areas in the centers, the upper panel 10.7 of the pier stud 6.2 and the lower panel 10.6 connected with the bearing platform 7 are firstly welded, and then the grouting areas are grouted and fixed through grouting joints 10.5 reserved on the panels.
In the technical scheme, the upper panel 10.7 and the lower panel 10.6 are welded by adopting a single-edge groove full-section welding mode, a welding line is a first-level penetration welding mode, and epoxy grouting operation is carried out. The grouting material can be grouting material, concrete, gravel concrete, self-compacting concrete, high-performance concrete, UHPC or epoxy base material and the like, and the subsequent grouting operation can also adopt the grouting material to perform grouting.
In another technical solution, as shown in fig. 7 to 10, for a pier with multiple pier columns, the method for prefabricating the connection bearing platform 7 and the lower embedded part thereof in the step S0 further includes S03: a plurality of grouting sleeves 10.10 are circumferentially arranged on the outer side of a lower panel 10.6 of each lower embedded part at intervals, and the upper ends of the grouting sleeves are flush with the upper surface of the connecting bearing platform 7, so that a plurality of vertical grouting channels penetrating through the outer part of the connecting bearing platform 7 are formed in the connecting bearing platform 7;
in the step S3, the method for effectively fixing the pier and the connection platform 7 by the upper embedded part and the lower embedded part specifically includes: set up along the perpendicular muscle 10.8 of post height direction at pier stud 6.2 outside hoop round, it stretches out to the pier bottom, a plurality of perpendicular muscle 10.8 one-to-one just insert in a plurality of grout sleeve 10.10, and the length that perpendicular muscle 10.8 stretches out the pier bottom satisfies the anchor length that inserts grout sleeve 10.10, the fixed perpendicular muscle 10.8 of grout in grout sleeve 10.10, set up bar planting 10.9 at perpendicular muscle 10.8 upper levels, perpendicular muscle 10.8 forms wholly with the mutual overlap joint of bar planting 10.9, it erects muscle 10.8 and bar planting 10.9 formation additional strengthening to pour the concrete parcel.
In the technical scheme, the embedded steel bars 10.9 and the vertical steel bars 10.8 can be common steel bars, chemical anchor bolts, full threaded rods or the like; the grouting sleeve 10.10 can also be a steel corrugated pipe or a connecting rod and the like so as to reduce the cost; the thickness of the arranged reinforcing structure is preferably 15-50cm, and the height is not less than 30cm, so that the safety of peripheral facilities is not influenced. The grouting sleeve 10.10 is realized after the connecting bearing platform 7 is poured by arranging a prefabricated tool corresponding to the single pier stud 6.2.
In another technical solution, as shown in fig. 11, for a pier of a single pier column, the method for prefabricating the connection bearing platform 7 and the lower embedded part thereof in step S0 specifically includes:
binding main ribs 10.1, placing a prefabricating tool, wherein the prefabricating tool comprises a steel panel 10.11 and a plurality of grouting sleeves 10.10, the steel panel 10.11 is of a frame structure, a plurality of through holes are formed in the frame edge of the steel panel at intervals, the grouting sleeves 10.10 correspond to the through holes one by one and are vertically fixed on the lower bottom surface of the steel panel 10.11, the grouting sleeves 10.10 are communicated with the through holes, the steel panel 10.11 is flush with the upper surface of the connecting bearing platform 7, the upper parts of the main ribs 10.1 are correspondingly positioned at the lower parts of the grouting sleeves 10.10 one by one, and the prefabricating tool is supported in the connecting bearing platform 7 through a support frame 10.12; arranging a connecting bearing platform 7 template and pouring to meet the design strength requirement;
for the pier of the single pier column 6.2, in the method for prefabricating the pier and the upper embedded part on the pier column 6.2 in the step S0, the upper embedded part is that the main rib 10.1 of the pier protrudes downwards out of the lower bottom surface of the pier column 6.2;
in step S3, the concrete method for effectively fixing the pier and the connection platform 7 by the upper embedded part and the lower embedded part is as follows: and inserting the main ribs 10.1 of the pier into the grouting sleeves 10.10 downwards in a one-to-one correspondence manner, and grouting into the grouting sleeves 10.10 to realize the quick connection of the pier and the connecting bearing platform 7.
In the above technical scheme, the length of the grouting sleeve 10.10 is greater than the protruding anchoring length of the main rib 10.1 on the pier stud 6.2, so that the main rib 10.1 is completely embedded into the grouting material of the grouting sleeve 10.10, and the connection stability can be ensured to the greatest extent. Each main bar 10.1 may be a single reinforcing bar or a tendon formed by a plurality of reinforcing bars, and during actual construction, in order to ensure strength, a tendon is usually used as the main bar 10.1. The length of the grouting sleeve 10.10 is larger than the total anchoring length of the upper main rib and the lower main rib 10.1, so that the connection is more stable. Support frame 10.12 for supporting a prefabricating tool in one embodiment comprises an upper support plate and a lower support plate parallel to each other, which are connected by a rib plate.
In another technical scheme, the upper surface of the connecting bearing platform 7 is also provided with a high-rise cushion layer 10.13, and a grouting hole is formed in the high-rise cushion layer. The pier stud 6.2 is located on the heightening layer 10.13, and the grouting hole is convenient for grouting materials into the grouting sleeve 10.10, so that concrete can be poured into the grouting hole of the heightening layer 10.13 after the pier stud 6.2 is erected above the connecting bearing platform 7. The concrete form of the heightening layer 10.13 is not limited, and may be an annular heightening layer 10.13 on which a grouting hole is arranged, or the heightening layer 10.13 may include a plurality of heightening blocks arranged at intervals, wherein a gap between two adjacent heightening blocks is the grouting hole.
In another technical solution, as shown in fig. 1, 2, 5, and 6, the vehicle-mounted equipment for a full-span bridge includes:
the train sets 1 are arranged in two groups at intervals in parallel, and the direction of the train sets 1 is perpendicular to the driving direction of the whole span bridge 5;
the bridge frock is striden entirely, it all sets up one on every group set of cars 1, the bridge frock is striden entirely includes: the whole-span bridge I-beam 4.1 comprises a plurality of transverse I-beams and a plurality of longitudinal I-beams, the plurality of transverse I-beams are arranged at intervals along the length direction of the train set 1, two ends of each transverse I-beam extend to the outside of two sides of the width direction of the train set 1, the transverse I-beams are fixed on the train set 1, the plurality of longitudinal I-beams are arranged at intervals along the width direction of the train set 1, two ends of each longitudinal I-beam are located in the length direction of the train set 1 and in the plane of the whole-span bridge 5, and the longitudinal I-beams are arranged on the lower bottom surface of the whole-span bridge 5; the whole-span bridge steel pipe 4.2 is vertically arranged, the junctions of the plurality of transverse I-shaped steels and the plurality of longitudinal I-shaped steels are respectively provided with one steel pipe, and the whole-span bridge steel pipe 4.2 is connected with the whole-span bridge I-shaped steel 4.1 through a flange plate; the connecting channel steel 4.3 is transversely and obliquely connected between the adjacent whole-span bridge steel pipes 4.2 at intervals along the height direction; and the inclined strut channel steel 4.4 is connected between the part of the transverse I-shaped steel extending out of the vehicle group 1 and the whole-span bridge steel pipe 4.2.
In the technical scheme, the whole-span bridge 5 tooling is arranged on each set of the cars 1 and is used for supporting the whole-span bridge 5 and ensuring the stability of the whole-span bridge 5 in the moving process. The transverse I-beams are arranged at intervals according to the length of the train set 1, and the length of the longitudinal I-beam at the top is arranged according to the width of the whole span bridge 5. The vehicle set 1 has the functions of moving and lifting, and meets the construction requirements of moving and lifting the whole span bridge 5 and falling the beam.
In another aspect, as shown in fig. 1 to 4, the pier-mounted equipment includes:
the train sets 1 are arranged in two groups at intervals in parallel, and the direction of the train sets 1 is consistent with the driving direction of the whole span bridge 5;
the beam carrying support comprises two bailey frames 2.1, the bailey frames 2.1 are arranged on two sides of a pier stud 6.2, the direction of the bailey frames is vertical to the direction of the vehicle group 1, and the beam carrying support is fixed on the vehicle group 1;
pier stud frock, it sets up the multiunit at the interval on carrying the roof beam support, pier stud frock all is located pier stud 6.2 inboardly, and every pier stud frock of group includes:
the pier column I-steel 3.1 comprises a plurality of groups, each group of pier column I-steel 3.1 comprises an upper I-steel and a lower I-steel which are parallel up and down and arranged along the direction of the train set 1 respectively, the lower I-steel is fixed on the bailey frame 2.1 through a flange plate, and a cushion block is arranged at the joint of the upper I-steel and the bent cap 6.1 and used for supporting the bent cap 6.1;
the pier column steel pipes 3.2 are double-row steel pipes, and the pier column steel pipes 3.2 are supported between the upper I-shaped steel and the lower I-shaped steel of each group;
and a connecting support 3.3 which connects the adjacent upper I-beam and lower I-beam along the direction of the vehicle group 1.
In above-mentioned technical scheme, set up the pier stud frock on the set of cars 1 for support pier stud 6.2, guarantee to move fortune in-process pier stud 6.2 stable. The support structure of the present application is not limited to the bailey frame or the steel pipe frame described above, and may be a profile steel frame, an integral support, or the like.
The invention also provides a method for quickly dismantling the pier beam cooperated with the whole based on the vehicle-mounted equipment, which comprises the following steps:
a: the whole-span bridge 5 and the bridge piers are respectively supported by whole-span bridge vehicle-mounted equipment and bridge pier vehicle-mounted equipment;
b: dismantling the connection between the whole-span bridge and the bridge piers, and lifting the whole-span bridge 5 integrally by using the lifting function of the vehicle-mounted equipment of the whole-span bridge;
c: pre-jacking the whole pier by using the jacking function of the vehicle-mounted equipment of the pier, cutting the concrete section at the lower end of the pier basically along the lower part of the pier close to the ground, and transferring to a beam-falling field to fall the pier by using the transferring and descending function of the vehicle-mounted equipment of the pier and a predetermined route;
d: the method comprises the following steps of (1) utilizing the functions of moving and descending of the vehicle-mounted equipment of the whole-span bridge and moving the equipment to a beam falling site along a preset route to fall the beam;
e: and finishing the subsequent work.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A method for quickly mounting pier beams in cooperation with a whole based on vehicle-mounted equipment is characterized by comprising the following steps:
s0: after the whole span bridge and the bridge piers are designed, the whole bridge and the bridge piers are prefabricated on the pedestal of the non-bridge position area in a matching mode, and upper embedded parts are correspondingly arranged on the lower bottom surfaces of the pier columns when the bridge piers are prefabricated; synchronously constructing a bridge foundation and a connecting bearing platform in the bridge location area, and correspondingly arranging lower embedded parts on the connecting bearing platform when the connecting bearing platform is cast in situ;
s1: the method is characterized in that a bridge pier is not installed, the whole span bridge is rapidly transferred to a plane position set by a bridge position directly through the functions of jacking, transferring and descending of vehicle-mounted equipment of the whole span bridge, and sufficient installation clearance is reserved;
s2: the method comprises the following steps of moving a bridge pier to the position above a connecting bearing platform of a bridge location area and the position below a whole-span bridge positioned in advance according to design requirements by adopting the functions of jacking, moving and descending of bridge pier vehicle-mounted equipment;
s3: the method comprises the following steps of (1) lowering and positioning a pier to a designed position by adopting the lifting function of pier vehicle-mounted equipment, completing the adjustment of the levelness and the verticality of the pier, effectively solidifying the pier and a connecting bearing platform by adopting a connection mode of an upper embedded part and a lower embedded part which are designed in advance, and removing the pier vehicle-mounted equipment;
s4: after necessary measures are adopted to ensure that the bridge pier and the connecting bearing platform are stably fixed, the whole bridge span is placed above the support above the bridge pier according to the design requirement by adopting the moving function and the lifting function of the whole bridge span vehicle-mounted equipment, and then the whole bridge span vehicle-mounted equipment is removed;
s5: and finishing the subsequent work and durability protection after the bridge is installed.
2. The method for cooperative and integral quick installation of the pier beam based on the vehicle-mounted equipment according to claim 1, wherein for the pier with multiple pier columns, the method for prefabricating the connecting bearing platform and the lower embedded part thereof in the step S0 specifically comprises the following steps:
s01: binding and connecting the main ribs of the bearing platform, and binding and arranging reinforcing ribs on the inner sides of the main ribs of the connecting bearing platform;
s02: the connecting bearing platform is internally provided with a plurality of lower embedded parts, the positions of the lower embedded parts correspond to a plurality of pier columns of the pier one by one, each lower embedded part comprises a lower panel, a plurality of shear keys and shear key circumferential ribs, the plurality of shear keys are embedded in a circle in a circumferential manner, the plurality of shear keys are provided with reserved holes and sequentially penetrate through the shear keys and the circumferential ribs to form a closed integrated structure, the upper surfaces of the plurality of shear keys are welded with the lower panels and are parallel to the upper surface of the connecting bearing platform, and the upper ends of the main ribs and the reinforcing ribs penetrate into the lower panel and are welded and fixed;
s04: and arranging a connecting bearing platform template and pouring to meet the design strength requirement.
3. The method for cooperative and integral quick installation of the pier beam based on the vehicle-mounted equipment according to claim 2, wherein for the pier with multiple piers, the method for prefabricating the pier and the upper embedded part on the pier in the step S0 specifically comprises the following steps:
the design position department of every pier stud at the pier sets up pours the die block, places the top panel on the die block, and a plurality of shear force keys are all provided with the preformed hole and pass the back through shear force key ring to the muscle and form closed integral type structure to the fixed a plurality of shear force keys of hoop round on the top panel, set up the main muscle of ligature and the strengthening rib of pier stud, and main muscle and strengthening rib are all worn into in the top panel and welded fastening, pour the pier stud and the bent cap on it and reach the design strength requirement.
4. The method for cooperative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 3, wherein in the step S3, the concrete method for the upper embedded parts and the lower embedded parts to effectively solidify the pier and the connecting bearing platform is as follows: the upper panel and the lower panel are both of annular structures with grouting areas in the centers, the upper panel of the pier stud and the lower panel connected with the bearing platform are welded firstly, and then the grouting areas are grouted and fixed through grouting joints reserved on the panels.
5. The method for cooperative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 4, wherein for a pier with multiple pier columns, the method for prefabricating the connecting bearing platform and the lower embedded parts thereof in the step S0 further comprises the steps of S03: a plurality of grouting sleeves are circumferentially arranged on the outer side of the lower panel of each lower embedded part at intervals, and the upper ends of the grouting sleeves are flush with the upper surface of the connecting bearing platform so as to form a plurality of vertical grouting channels which penetrate through the outer part of the connecting bearing platform in the connecting bearing platform;
in step S3, the method for effectively fixing the pier and the connection platform by the upper embedded part and the lower embedded part specifically includes: the vertical bars along the column height direction are arranged in the circumferential circle outside the pier column and extend out of the bottom of the pier, a plurality of vertical bars are inserted into a plurality of grouting sleeves in a one-to-one correspondence mode, the length of the vertical bars extending out of the bottom of the pier meets the anchoring length of the grouting sleeves, the vertical bars are fixed in grouting in the grouting sleeves, the vertical bars are horizontally arranged on the vertical bars, the vertical bars and the planted bars are in lap joint to form a whole, and the poured concrete is wrapped to form the vertical bars and the planted bars form a reinforcing structure.
6. The method for cooperative and integral quick installation of the pier beam based on the vehicle-mounted equipment according to claim 1, wherein for the pier of the single pier column, the method for prefabricating the connecting bearing platform and the lower embedded part thereof in the step S0 specifically comprises the following steps:
binding main ribs, placing a prefabricating tool, wherein the prefabricating tool comprises a steel panel and a plurality of grouting sleeves, the steel panel is of a frame structure, a plurality of through holes are formed in the frame edge of the steel panel at intervals, the grouting sleeves correspond to the through holes one by one and are vertically fixed on the lower bottom surface of the steel panel, the grouting sleeves are communicated with the through holes, the steel panel is flush with the upper surface of the connecting bearing platform, the upper parts of the main ribs are correspondingly positioned at the lower parts of the grouting sleeves one by one, and the prefabricating tool is supported in the connecting bearing platform through a support frame; arranging a connecting bearing platform template and pouring to meet the design strength requirement;
for the pier with a single pier stud, in the method for prefabricating the pier and the upper embedded parts on the pier stud in the step S0, the upper embedded parts are that the main ribs of the pier downwards protrude out of the lower bottom surface of the pier stud;
in step S3, the concrete method for effectively consolidating the pier and the connection bearing platform by the upper embedded part and the lower embedded part includes: and inserting the main ribs of the pier into the grouting sleeve in a downward one-to-one correspondence manner, and grouting in the grouting sleeve to realize the quick connection of the pier and the connecting bearing platform.
7. The method for the cooperative integral rapid installation of the pier beam based on the vehicle-mounted equipment is characterized in that the upper surface of the connecting bearing platform is also provided with a cushion layer, and a grouting hole is formed in the cushion layer.
8. The method for cooperative integral quick installation of pier beams based on vehicle-mounted equipment according to claim 1, wherein the integral bridge vehicle-mounted equipment comprises:
the two sets of the car groups are arranged in parallel at intervals, and the direction of the car groups is vertical to the driving direction road of the whole span bridge;
the bridge frock is striden entirely, it all sets up one on every group set of cars, the bridge frock is striden entirely includes:
the I-shaped steel of the whole span bridge comprises a plurality of transverse I-shaped steels and a plurality of longitudinal I-shaped steels, wherein the transverse I-shaped steels are arranged at intervals along the length direction of the train set, two ends of the transverse I-shaped steel extend to the outside of two sides of the width direction of the train set, the transverse I-shaped steel is fixed on the train set, the longitudinal I-shaped steels are arranged at intervals along the width direction of the train set, two ends of the longitudinal I-shaped steel are positioned in the length direction of the train set and in the plane of the whole span bridge, and the longitudinal I-shaped steel is arranged on the lower bottom surface of the whole span bridge;
the whole-span bridge steel pipe is vertically arranged, the junctions of the plurality of transverse I-shaped steels and the plurality of longitudinal I-shaped steels are respectively provided with one steel pipe, and the whole-span bridge steel pipe is connected with the whole-span bridge I-shaped steel through a flange plate;
the connecting channel steel is transversely and obliquely connected between the adjacent whole-span bridge steel pipes at intervals along the height direction;
and the inclined strut channel steel is connected between the part of the transverse I-shaped steel extending out of the vehicle group and the whole-span bridge steel pipe.
9. The method for cooperative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 1, wherein the pier vehicle-mounted equipment comprises:
the two sets of the car groups are arranged in parallel at intervals, and the direction of the car groups is consistent with the driving direction of the whole bridge;
the beam carrying support comprises two bailey frames, the bailey frames are arranged on two sides of a pier column and are vertical to the direction of a vehicle group, and the beam carrying support is fixed on the vehicle group;
pier stud frock, it sets up the multiunit at the interval on carrying the roof beam support, pier stud frock all is located the pier stud inboard, and every pier stud frock of group includes:
the pier column I-steel comprises a plurality of groups, each group of pier column I-steel comprises an upper I-steel and a lower I-steel which are respectively parallel up and down and are arranged along the direction of the train set, the lower I-steel is fixed on the bailey frame through a flange plate, and a cushion block is arranged at the joint of the upper I-steel and the cover beam and used for supporting the cover beam;
the pier column steel pipes are double-row steel pipes and are supported between the upper I-shaped steel and the lower I-shaped steel of each group;
and the connecting support is used for connecting the adjacent upper I-shaped steel and the lower I-shaped steel along the direction of the vehicle group.
10. A method for rapidly removing pier beams in cooperation with a whole based on vehicle-mounted equipment is characterized by comprising the following steps:
a: respectively supporting a whole-span bridge and a bridge pier through whole-span bridge vehicle-mounted equipment and bridge pier vehicle-mounted equipment;
b: removing the connection between the whole-span bridge and the bridge pier, and lifting the whole-span bridge integrally by using the lifting function of the vehicle-mounted equipment of the whole-span bridge;
c: pre-jacking the whole pier by using the jacking function of the vehicle-mounted equipment of the pier, cutting the concrete section at the lower end of the pier basically along the lower part of the pier close to the ground, and transferring to a beam-falling field to fall the pier by using the transferring and descending function of the vehicle-mounted equipment of the pier and a predetermined route;
d: the method comprises the following steps of (1) utilizing the functions of moving and descending of the vehicle-mounted equipment of the whole-span bridge and moving the equipment to a beam falling site along a preset route to fall the beam;
e: and finishing the subsequent work.
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| CN109468960A (en) * | 2018-12-07 | 2019-03-15 | 武汉二航路桥特种工程有限责任公司 | The quick change method and replacement system of highway line bridge |
| CN209260577U (en) * | 2018-12-07 | 2019-08-16 | 武汉二航路桥特种工程有限责任公司 | The replacement system of highway line bridge |
| CN110528405A (en) * | 2019-05-28 | 2019-12-03 | 武汉二航路桥特种工程有限责任公司 | Bridge big height lifting and translocating equipment and its construction method based on vehicle group |
| CN112502030A (en) * | 2020-11-04 | 2021-03-16 | 安徽省交通规划设计研究总院股份有限公司 | Prefabricated assembled bridge substructure slot-in type and socket joint formula built-up connection structure |
| CN112796202A (en) * | 2021-01-27 | 2021-05-14 | 广东省交通规划设计研究院股份有限公司 | Bridge splicing structure and construction method thereof |
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