CN113668388B - Pier-beam collaborative integral rapid installation and removal method based on vehicle-mounted equipment - Google Patents
Pier-beam collaborative integral rapid installation and removal method based on vehicle-mounted equipment Download PDFInfo
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- CN113668388B CN113668388B CN202110796066.6A CN202110796066A CN113668388B CN 113668388 B CN113668388 B CN 113668388B CN 202110796066 A CN202110796066 A CN 202110796066A CN 113668388 B CN113668388 B CN 113668388B
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- 239000010959 steel Substances 0.000 claims description 104
- 238000009417 prefabrication Methods 0.000 claims description 17
- 239000004567 concrete Substances 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 10
- 238000004873 anchoring Methods 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- OFCNXPDARWKPPY-UHFFFAOYSA-N allopurinol Chemical compound OC1=NC=NC2=C1C=NN2 OFCNXPDARWKPPY-UHFFFAOYSA-N 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims description 2
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- 238000003466 welding Methods 0.000 description 5
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Classifications
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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
-
- 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
-
- 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 pier-beam collaborative integral rapid installation method based on vehicle-mounted equipment, which comprises the following steps: s0: integrally prefabricating a whole span bridge and a pier; synchronously constructing a bridge foundation and a connecting bearing platform in a bridge location area; s1: quickly moving the whole bridge to a plane position set by a bridge position; s2: the bridge pier vehicle-mounted equipment is adopted to move the bridge pier to the position above a connecting bearing platform of a bridge position area and the position below the whole span bridge according to design requirements; s3: lowering and positioning the pier, and effectively solidifying the pier and the connecting bearing platform by adopting an upper embedded part and a lower embedded part; s4: lowering the whole bridge to the upper part of the bridge pier; s5: and finishing subsequent work and durability protection after bridge installation. The invention also discloses a pier-beam collaborative integral quick dismantling method based on the vehicle-mounted equipment. The invention provides a brand new and upgraded construction method for building and dismantling bridges and pier columns, solves the technical problem of rapid 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 a bridge superstructure and a substructure. More particularly, the invention relates to a method for collaborative and integral rapid installation and removal of pier beams based on vehicle-mounted equipment.
Background
When the pier beam is installed and constructed at the crossing position of the bridge crossing and in the area with large traffic flow, the pier beam is required to be quickly installed and dismantled, for example, within 6 hours, so that the full prefabricated assembled bridge is provided, and the full prefabricated assembled bridge is a bridge with the main components of the upper structure and the lower structure of the bridge prefabricated in factories or prefabricated fields and assembled on site. The existing whole span bridge prefabrication and assembly technology is relatively mature, and the construction technology comprises balanced cantilever assembly, a hole-by-hole assembly method, a whole hole frame management method and the like. The beam pier column prefabrication and assembly construction is generally applied to the water multi-span bridge, and the application in the urban viaduct construction is less. When the existing urban overhead bridge is prefabricated and assembled, a crane is adopted to hoist and mount the pier stud and connect the foundation, and then the cover beam and the pier stud are spliced to form a whole. However, there is not enough space for installing and dismantling in the space limitation, and the conventional construction method of the pier-before-beam cannot meet the requirement, so a brand new construction method needs to be proposed to meet the requirement that the pier does not influence the installation of the beam.
In addition, in the actual full-prefabricated bridge assembly, the conventional hoisting and transferring such as a crane is often adopted, so that a great amount of lifting table fees are consumed; meanwhile, due to the large traffic volume of the urban overpass bridge, the conventional construction method and the conventional connection device cannot meet the requirement of collaborative, rapid and efficient assembly of the upper part and the lower part of the bridge. How to ensure the assembly connection strength of the pier beams, and simultaneously realize the rapid collaborative assembly of the prefabricated pier beams, reduce the influence of construction on traffic, and is a problem which needs to be solved currently.
Disclosure of Invention
The invention aims to provide a pier beam collaborative integral rapid installation and removal method based on vehicle-mounted equipment, which solves the technical problem of rapid installation and removal of a prefabricated pier beam and has the advantages of safety, reliability, rapidness and high efficiency.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment, comprising the steps of:
s0: after the integral bridge and the bridge pier are designed in a shaping mode, integrally matching and prefabricating on a pedestal in a non-bridge area, wherein an upper embedded part is correspondingly arranged on the lower bottom surface of the pier column when the bridge pier is prefabricated; synchronously constructing a bridge foundation and a connecting bearing platform in a bridge location area, and correspondingly arranging a lower embedded part on the connecting bearing platform when the connecting bearing platform is cast in situ;
S1: the bridge pier is not installed, and the whole bridge is quickly moved to the plane position set by the bridge position through the jacking, moving and descending functions of the vehicle-mounted equipment of the whole bridge, and enough installation clear height is reserved;
s2: the method comprises the steps that by adopting the jacking, moving and descending functions of bridge pier vehicle-mounted equipment, bridge piers are moved to the position above a connecting bearing platform of a bridge position area and the position below a whole span bridge in advance according to design requirements;
s3: the lifting function of the bridge pier vehicle-mounted equipment is adopted to lower and position the bridge pier to a designed position, adjustment of the levelness and the verticality of the bridge pier is completed, then the bridge pier and the connecting bearing platform are effectively consolidated in a connecting mode of an upper embedded part and a lower embedded part which are designed in advance, and the bridge pier vehicle-mounted equipment is removed;
s4: after the bridge pier and the connecting bearing platform are stably solidified by adopting necessary measures, lowering the whole span bridge above a support above the bridge pier according to design requirements by adopting a transfer function and a lifting function of the whole span bridge vehicle-mounted equipment, and removing the whole span bridge vehicle-mounted equipment;
s5: and finishing subsequent work and durability protection after bridge installation.
Preferably, for the pier with multiple pier columns, the method for prefabricating the connection bearing platform and the embedded part at the lower part thereof in the step S0 specifically comprises the following steps:
S01: binding a main rib of the connection bearing platform, and binding reinforcing ribs on the inner side of the main rib of the connection 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 a shear key annular rib, the shear keys are embedded in a circle, the shear keys are all provided with preformed holes and sequentially pass through the shear key annular rib to form a closed integrated structure, the upper surfaces of the shear keys are welded with the lower panels and are flush with the upper surface of the connecting bearing platform, and the upper ends of the main ribs and the reinforcing ribs penetrate into the lower panels and are welded and fixed;
s04: and setting a template for connecting the bearing platform and pouring to meet the design strength requirement.
Preferably, for the pier with multiple pier columns, the method for prefabricating the pier and the upper embedded part on the pier columns in the step S0 specifically includes:
setting up the pouring die block in the design position department of every mound post of pier, placing the top board on the die block, annular round fixed a plurality of shear force keys on the top board, a plurality of shear force keys all are provided with the preformed hole and pass through the shear force key hoop muscle and form closed integral type structure, set up ligature main rib and the strengthening rib of mound post, main rib and strengthening rib all pierce into in the top board and welded fastening, pour the pier post and the bent cap on it and reach the design strength requirement.
Preferably, in the step S3, the concrete method for effectively solidifying the pier and the connection bearing platform by the upper embedded part and the lower embedded part is as follows: the upper panel and the lower panel are of annular structures with grouting areas in the center, the upper panel of the pier column and the lower panel of the connecting bearing platform are welded at first, and grouting and fixing are carried out on the grouting areas through grouting seams reserved in the panels.
Preferably, for the pier with multiple pier columns, the method for prefabricating the connection bearing platform and the embedded part at the lower part thereof in the step S0 further includes S03: a plurality of grouting sleeves are circumferentially arranged at intervals on the outer side of the lower panel of each lower embedded part, 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 penetrating through the outer part of the connecting bearing platform in the connecting bearing platform;
in the step S3, the method for effectively solidifying the pier and the connection bearing platform by the upper embedded part and the lower embedded part specifically further includes: the vertical ribs are arranged in a circle along the height direction of the pier column in the outside of the pier column, extend to the bottom of the pier, are inserted into the grouting sleeves in a one-to-one correspondence mode, the length of the vertical ribs extending out of the bottom of the pier meets the anchoring length of the grouting sleeve, the vertical ribs are fixed in the grouting sleeve in a grouting mode, the vertical ribs are horizontally arranged on the vertical ribs, the vertical ribs are mutually overlapped with the planting ribs to form a whole, and the casting concrete wraps the vertical ribs and the planting ribs to form a reinforcing structure.
Preferably, for the pier of the single pier column, the method for prefabricating the connection bearing platform and the embedded part at the lower part thereof in the step S0 specifically comprises the following steps:
binding a main rib, placing a prefabrication tool, wherein the prefabrication 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 are in one-to-one correspondence with the through holes and 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 a connection bearing platform, the upper parts of the main ribs are in one-to-one correspondence with the lower parts of the grouting sleeves, and the prefabrication tool is supported in the connection bearing platform through a support frame; setting a template of a connecting bearing platform and pouring to meet the design strength requirement;
in the method for prefabricating the pier and the upper embedded part on the pier in the step S0, the upper embedded part is that the main rib of the pier protrudes downwards out of the lower bottom surface of the pier;
in the step S3, the concrete method for effectively solidifying the pier and the connection bearing platform by the upper embedded part and the lower embedded part is as follows: and the main ribs of the piers are inserted into the grouting sleeves in a downward one-to-one correspondence manner, and grouting is performed in the grouting sleeves, so that the quick connection between the piers and the connection bearing platform is realized.
Preferably, the upper surface of the connection bearing platform is also provided with a lifting layer, and grouting holes are formed in the lifting layer.
Preferably, the bridge vehicle-mounted equipment comprises:
the two groups of the train units are arranged at intervals in parallel, and the direction of the train units is perpendicular to the driving direction path of the whole bridge;
bridge frock is striden to whole, it all sets up one on every group of group, bridge frock is striden to whole includes:
the bridge girder comprises a plurality of transverse I-beams and a plurality of longitudinal I-beams, wherein the plurality of transverse I-beams are arranged at intervals along the length direction of the train unit, the two ends of the transverse I-beams extend out of the two sides of the width direction of the train unit, the transverse I-beams are fixed on the train unit, the plurality of longitudinal I-beams are arranged at intervals along the width direction of the train unit, the two ends of the transverse I-beams are positioned in the length direction of the train unit and in the plane of the bridge girder, and the longitudinal I-beams are arranged on the lower bottom surface of the bridge girder;
the whole span bridge steel pipe is vertically arranged, one of the junctions of the plurality of transverse I-beams and the plurality of longitudinal I-beams is respectively arranged, and the whole span bridge steel pipe is connected with the whole span bridge I-beams through flanges;
the connecting channel steel is transversely and obliquely connected between adjacent whole span bridge steel pipes at intervals along the height direction;
And the diagonal bracing channel steel is connected between the part of the transverse I-steel extending out of the car group and the whole span bridge steel pipe.
Preferably, the bridge pier vehicle-mounted device includes:
the two groups of the train units are arranged at intervals in parallel, and the direction of the train units is consistent with the driving direction of the whole bridge;
the beam carrying support comprises two beam bodies, wherein the beam bodies are arranged on two sides of the pier stud and are perpendicular to the direction of the car group, and the beam carrying support is fixed on the car group;
pier stud frock, it sets up the multiunit at the interval on the beam carrying support, pier stud frock all is located the pier stud inboard, and every group pier stud frock 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 vehicle group, 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 capping beam and used for supporting the capping beam;
the pier column steel pipes are double-row steel pipes, and are supported between each group of upper I-steel and lower I-steel;
and the connecting support is used for connecting the adjacent upper I-steel and lower I-steel along the direction of the vehicle group.
The invention also provides a pier-beam collaborative integral quick dismantling method based on vehicle-mounted equipment, which comprises the following steps:
a: supporting the whole span bridge and the bridge pier respectively through the whole span bridge vehicle-mounted equipment and the bridge pier vehicle-mounted equipment;
b: removing the connection between the whole span bridge and the bridge pier, and integrally lifting the whole span bridge by utilizing the lifting function of the vehicle-mounted equipment of the whole span bridge;
c: the whole pier is pre-jacked by utilizing the jacking function of the bridge pier vehicle-mounted equipment, the concrete section of the lower end of the bridge pier is basically cut along the lower part of the bridge pier close to the ground, and the bridge pier vehicle-mounted equipment is utilized for transferring and descending and transferring to a girder dropping site along a preset route for pier dropping;
d: the method comprises the steps of utilizing the transfer and descending functions of the whole bridge vehicle-mounted equipment and transferring to a beam falling site along a preset route to fall beams;
e: and finishing the subsequent work.
The invention at least comprises the following beneficial effects:
1. the invention adopts the vehicle-mounted equipment to assist in construction and has the advantages of good adaptability and universality, simple structure, convenient manufacture, good operability, safety, reliability, good economy, good application prospect and the like.
The adaptability is good: the method can set the moving route of the moving vehicle-mounted equipment, the position of the train set and the form and the size of the beam carrying support and the tooling according to the site situation and the structure size of the whole bridge and the bridge pier.
The structure is simple: the beam carrying bracket, the tooling and the like are in common structural forms and have simple structures.
The manufacturing is convenient: the train set and other components required by the equipment are all formed products on the market, and can be realized through simple assembly and reasonable organization.
The operability is good: the lifting and moving operation of the vehicle set is simple, welding, assembling and the like are all common mature processes, and the lifting and falling of the pier beam can be completed only by operating the vehicle set.
Safety and reliability: the operation sight of the train set is good, and unstable factors caused by hoisting equipment such as a crane and the like are avoided; the train set is used in multiple projects, the equipment process is mature, and the operation is simple; the safety of each component of the system assembly is high; the working condition of the construction process is stable, the control is convenient, and the risk of the construction technology is small.
The economy is good: on one hand, the vehicle-mounted equipment mainly comprises market molding products, is simple to assemble and process, and has low cost for realizing cooperative and rapid installation of pier beams; the assembly site only needs to assemble all the forming components, and the operation is simple; and the table cost of hoisting equipment is reduced. On the other hand, the prefabrication of the pier beam and the pouring of the connecting bearing platform can be simultaneously carried out, the prefabrication of the pier column is assembled and positioned efficiently and simply, the construction speed can be accelerated, the construction period is shortened, the influence on traffic is small, and better economic and social benefits are achieved.
The application prospect is good: the pier beam cooperating with the fast-installed moving equipment can realize the fast and efficient installation of the pier beam, and has good technical characteristics and excellent economic performance, thereby having obvious social benefit for the urban overpass bridge engineering with large traffic flow and good application prospect. Meanwhile, the vehicle-mounted equipment can be also applied to projects such as installation of other concrete members, and the application field of the vehicle-mounted equipment is greatly expanded.
2. The pier-beam collaborative integral rapid installation method based on the vehicle-mounted equipment can realize the pier-beam collaborative rapid and accurate installation in a narrow space, the traditional method for installing the pier by hoisting firstly and then moving the whole span bridge and installing the girder falling on the whole span bridge is not suitable for the construction of the application, and the vehicle-mounted equipment of the whole span bridge is influenced by pier columns on two sides to pass smoothly, so the method of the invention adopts the method that the pier is firstly moved away, the pier is installed below the whole span bridge after the whole span bridge is moved in place, and finally the girder falling is realized.
3. The pier-beam collaborative integral rapid dismantling method based on the vehicle-mounted equipment is a brand new dismantling method, and the technical problem that the vehicle-mounted equipment enters the lower part of the whole span bridge during dismantling and is blocked by the bridge piers at two sides after the whole span bridge is consigned and cannot be smoothly moved out is solved by adopting the method that the whole span bridge is jacked up to dismantle the bridge piers and then the whole span bridge is removed.
4. The pier-beam collaborative rapid installation and dismantling method disclosed by the invention completely changes the conventional construction method, so that the conventional hoisting and splicing mode can not be used for connecting the multi-pier-column piers and the connecting bearing platforms, and the multi-pier-column piers and the connecting bearing platforms are connected by adopting a brand-new connecting structure and construction method.
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 rig for collaborative quick installation of pier beams;
FIG. 2 is a schematic elevation view of a core equipment for collaborative quick installation of pier beams;
FIG. 3 is a schematic elevation view of an apparatus for bridge pier transfer installation;
FIG. 4 is a schematic side elevational view of an apparatus for bridge pier transfer installation;
FIG. 5 is a schematic elevation view of equipment for whole span bridge transfer installation;
FIG. 6 is a schematic side elevation view of equipment for full span bridge transfer installation;
FIG. 7 is a schematic elevation view of a connection structure and a reinforcement structure of a multi-pier bridge pier and a connection bearing platform;
FIG. 8 is a schematic plan view of a connecting cap at the junction of a multi-pier abutment and the connecting cap;
FIG. 9 is a schematic plan view of a reinforcing structure of a connecting cap at the joint of a multi-pier abutment and the connecting cap;
FIG. 10 is a schematic plan view of a reinforcement structure at the pier column of the joint of the pier with the connecting bearing platform;
fig. 11 is a schematic elevation view of a connection structure between a single pier and a connection platform.
Reference numerals illustrate:
1. the bridge comprises a plurality of bridge girders, 2.1, bailey frames, 3.1, pier column I-beams, 3.2, pier column steel pipes, 3.3, connecting struts, 4.1, whole span bridge I-beams, 4.2, whole span bridge steel pipes, 4.3, connecting channel steel, 4.4, diagonal bracing channel steel, 5, whole span bridges, 6.1, cap beams, 6.2, pier columns, 7, connecting bearing platforms, 10.1, main ribs, 10.2, reinforcing ribs, 10.3, shear keys, 10.4, shear key circumferential ribs, 10.5, grouting joints, 10.6, lower panels, 10.7, upper panels, 10.8, vertical ribs, 10.9, planting ribs, 10.10, grouting sleeves, 10.11, steel panels, 10.12, supporting frames, 10.13 and a backing up layer.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "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 merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention.
As shown in fig. 1 to 11, the present invention provides a method for collaborative integral rapid installation of pier beams based on vehicle equipment, comprising the following steps:
s0: after the integral bridge 5 and the bridge pier are designed in a shaping mode, the integral matching prefabrication is carried out on a pedestal in a non-bridge area, and an upper embedded part is correspondingly arranged on the lower bottom surface of the pier column 6.2 when the bridge pier is prefabricated; synchronously constructing a bridge foundation and a connecting bearing platform 7 in a bridge location area, and correspondingly arranging a lower embedded part 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 the connecting bearing platform 7 and the whole span bridge 5, single pier columns correspondingly matched with the connecting bearing platform 7 are grouting sleeves, and a plurality of pier columns are embedded steel plate panels;
s1: the bridge is not installed, the whole bridge is quickly moved to the plane position set by the bridge position through the jacking, moving and descending functions of the vehicle-mounted equipment of the whole bridge, and enough installation clear height is reserved, and is generally between 40 and 50 centimeters;
s2: the functions of lifting, moving and descending of bridge pier vehicle-mounted equipment are adopted, the bridge piers are moved to the position above a connecting bearing platform 7 of a bridge position area and the position below a whole span bridge well positioned in advance according to design requirements, and a certain clear height is formed between the lowest part of a single pier or a plurality of piers and the connecting bearing platform 7;
S3: the lifting function of the bridge pier vehicle-mounted equipment is adopted to lower and position the bridge pier to a designed position, adjustment of the levelness and the verticality of the bridge pier is completed, then the bridge pier and the connecting bearing platform 7 are effectively consolidated in a connecting mode of an upper embedded part and a lower embedded part which are designed in advance, and the bridge pier vehicle-mounted equipment is removed; the grouting sleeve is effectively solidified for the single pier column, a plurality of temporary brackets are arranged on the single pier column in a circle in the circumferential direction, steel plates are correspondingly arranged on the connecting bearing platform 7 and are connected with the temporary brackets 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 lowered, and the strength of the grouting slurry can meet the requirement after at least 24 hours; for the multi-pier column, 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 is carried out to carry out reinforcement connection, or temporary connection and permanent connection can be adopted at the same time, and the whole span bridge 5 is lowered at the same time; in the consolidation process 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 screw rods or the multiple pier columns are connected in advance through steel plate welding;
S4: after the bridge pier and the connecting bearing platform 7 are stably solidified by adopting necessary measures, namely the effective solidification mode, the whole bridge 5 is lowered above the support above the bridge pier according to design requirements by adopting the transfer function and the lifting function of the whole bridge vehicle-mounted equipment, the support is placed in advance, and then the whole bridge vehicle-mounted equipment is removed; the vehicle-mounted equipment needs to have enough lifting height and synchronism so as to meet the construction requirement; one specific structure of the vehicle-mounted equipment is a vehicle group 1, and has the functions of lifting, moving, steering and the like;
s5: and finishing subsequent work and durability protection after bridge installation.
In the above technical scheme, before the pier-beam cooperative transportation and assembly, a site for prefabricating and parking the whole bridge 5 and the pier needs to be set, and the transportation route foundation and the flatness are processed. The pier beams are moved and lifted through the vehicle-mounted equipment, if the pier beams are vertically lifted and fixed according to a conventional mode and then are moved and lifted to be assembled by the whole span bridge 5, the vehicle-mounted equipment for moving and transporting the whole span bridge 5 cannot smoothly enter between the piers due to the blocking effect of the piers installed on two sides, so that the technical scheme is adopted for the pier beam collaborative rapid assembly, the whole span bridge 5 and the piers are prefabricated firstly, the cast-in-situ connection bearing platform 7 is synchronized, the whole span bridge 5 is moved and lifted in place, the piers are horizontally moved and conveyed to the connection bearing platform 7 below the whole span bridge 5 from the side surface, the conventional lifting and inserting mode is not adopted, the rapid collaborative assembly of the prefabricated pier beams is completed, the accuracy is high, and the assembly construction is rapid and efficient. The structure and pendulum-to-form of support in this application is not limited to beams being transverse, piers being longitudinal, but one orientation is custom made for ease of illustration.
In another technical scheme, as shown in fig. 7 to 9, for the pier of the multi-pier column, the method for prefabricating the connection bearing platform 7 and the embedded part at the lower part thereof in the step S0 specifically comprises the following steps:
s01: binding a main rib 10.1 of the connection bearing platform 7, and binding a reinforcing rib 10.2 on the inner side of the main rib 10.1 of the connection bearing platform 7;
s02: the connecting bearing platform 7 is internally provided with a plurality of lower embedded parts, the positions of the lower embedded parts are in one-to-one correspondence with a plurality of pier columns 6.2 of the pier, each lower embedded part comprises a lower panel 10.6, a plurality of shear keys 10.3 and a shear key circumferential rib 10.4, the shear keys 10.3 are embedded in a circle in a circumferential manner, the shear keys 10.3 are provided with reserved holes and sequentially pass through the shear key circumferential ribs 10.4 to form a closed integrated structure, the upper surfaces of the shear keys 10.3 are welded with the lower panels 10.6 and are flush with 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 panels 10.6 and are welded and fixed;
s04: and setting a template for connecting the bearing platform 7 and pouring to meet the design strength requirement.
In the above technical scheme, the lower embedded part is buried into the connection bearing platform 7 during prefabrication, the main rib 10.1 and the reinforcing rib 10.2 of the connection bearing platform 7 are firstly conventionally bound, then the shear key 10.3 and the annular rib on the shear key 10.3 are arranged at the design position of the lower embedded part, the preformed hole on the shear key 10.3 can be a hole, a double-hole or a porous trapezoid 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 the lower panel 10.6 at the connection part, the connection bearing platform 7 and the pier stud 6.2 from sliding and separating with each other, and the shear key 10.3 and the annular rib on the shear key form a whole. The connection bearing platform 7 is fixedly connected with the pier column 6.2 through the lower panel 10.6.
In another technical scheme, as shown in fig. 7 to 10, for the pier with multiple pier columns, the method for prefabricating the pier and the upper embedded part on the pier column 6.2 in the step S0 specifically comprises the following steps:
the method comprises the steps that a pouring bottom die is arranged at the design position of each pier stud 6.2 of the pier, an upper panel 10.7 is placed on the bottom die, a plurality of shear keys 10.3 are fixed on the upper panel 10.7 in a circle in a circumferential mode, reserved holes are formed in the plurality of shear keys 10.3, a closed integrated structure is formed after the shear keys penetrate through a shear key circumferential rib 10.4, binding main ribs 10.1 and reinforcing ribs 10.2 of the pier studs 6.2 are arranged, the main ribs 10.1 and the reinforcing ribs 10.2 penetrate into the upper panel 10.7 and are welded and fixed, and the pouring pier studs 6.2 and cover beams 6.1 on the pouring pier studs reach the design strength requirement.
In the above technical scheme, the shear key 10.3 is pre-buried when the pier stud 6.2 is prefabricated, so that the upper panel 10.7 is fixed at the lower end of the pier stud 6.2, and the pier stud 6.2 and the connection 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 embedded in the pier stud 6.2, and the arrangement is consistent with the arrangement mode and structure in the connection bearing platform 7.
In another technical scheme, in the step S3, the specific method for effectively solidifying the pier and the connection bearing platform 7 by the upper embedded part and the lower embedded part is as follows: the upper panel 10.7 and the lower panel 10.6 are of annular structures with grouting areas in the center, the upper panel 10.7 of the pier column 6.2 and the lower panel 10.6 of the connection bearing platform 7 are welded firstly, and grouting fixing is carried out on the grouting areas through grouting joints 10.5 reserved on the panels.
In the above technical scheme, the upper panel 10.7 and the lower panel 10.6 are welded with a single-side groove and a full section, the welding seam is first-level penetration welding, and epoxy grouting operation is performed. The grouting material can be grouting material, concrete, small stone concrete, self-compacting concrete, high-performance concrete, UHPC or epoxy-based material, and the like, and the grouting operation carried out later can be performed by adopting the grouting material.
In another technical solution, as shown in fig. 7 to 10, for the pier of the multi-pier stud, the method for prefabricating the connection cap 7 and the embedded part at the lower part thereof in the step S0 further includes S03: a plurality of grouting sleeves 10.10 are circumferentially arranged at intervals on the outer side of the lower panel 10.6 of each lower embedded part, the upper ends of the grouting sleeves are flush with the upper surface of the connecting bearing platform 7, and 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 solidifying the pier and the connection bearing platform 7 by the upper embedded part and the lower embedded part specifically further includes: the outer side of the pier column 6.2 is annularly provided with a circle of vertical ribs 10.8 along the height direction of the column, the vertical ribs 10.8 extend to the bottom of the pier, the vertical ribs 10.8 are inserted into the grouting sleeves 10.10 in a just one-to-one correspondence mode, the length of the vertical ribs 10.8 extending out of the bottom of the pier meets the anchoring length of the grouting sleeve 10.10, the grouting sleeve 10.10 is internally provided with grouting fixing vertical ribs 10.8, the vertical ribs 10.8 are horizontally provided with planting ribs 10.9, the vertical ribs 10.8 and the planting ribs 10.9 are mutually overlapped to form a whole, and the casting concrete wraps the vertical ribs 10.8 and the planting ribs 10.9 to form a reinforcing structure.
In the technical scheme, the planted bars 10.9 and the vertical bars 10.8 can be common steel bars, chemical anchor bolts or full-threaded rods and the like; the grouting sleeve 10.10 can also select a steel corrugated pipe or a connecting rod and the like so as to reduce the cost; the thickness of the reinforcing structure is 15-50cm, and the height is not less than 30cm, so that the safety of peripheral facilities is not affected. The grouting sleeve 10.10 is realized after pouring the connection bearing platform 7 by arranging a prefabrication tool corresponding to the single pier stud 6.2.
In another technical scheme, as shown in fig. 11, for the pier of the single pier column, the method for prefabricating the connection bearing platform 7 and the embedded part at the lower part thereof in the step S0 specifically comprises the following steps:
binding a main rib 10.1, and placing a prefabrication tool, wherein the prefabrication 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 plurality of grouting sleeves 10.10 are in one-to-one correspondence with the plurality of through holes and 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 a connection bearing platform 7, the upper parts of the main ribs 10.1 are in one-to-one correspondence with the lower parts of the plurality of grouting sleeves 10.10, and the prefabrication tool is supported in the connection bearing platform 7 through a support frame 10.12; setting a template for connecting the bearing platform 7 and pouring to meet the design strength requirement;
In the method for prefabricating the pier and the upper embedded part on the pier 6.2 in the step S0, the upper embedded part is the main rib 10.1 of the pier protruding downwards out of the lower bottom surface of the pier 6.2;
in the step S3, the concrete method for effectively solidifying the pier and the connection bearing platform 7 by the upper embedded part and the lower embedded part is as follows: and the main ribs 10.1 of the bridge piers are inserted into the grouting sleeves 10.10 in a downward one-to-one correspondence manner, and grouting is performed in the grouting sleeves 10.10, so that the quick connection between the bridge piers and the connection bearing platform 7 is realized.
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 all embedded into the grouting material of the grouting sleeve 10.10, and the connection stability can be ensured to the greatest extent. Each main reinforcement 10.1 may be a single reinforcement or may be a tendon composed of a plurality of reinforcements, and in actual construction, the main reinforcement 10.1 is usually a tendon for ensuring strength. The length of the grouting sleeve 10.10 is longer than the total anchoring length of the upper main rib 10.1 and the lower main rib 10.1, so that the connection is more stable. One embodiment of a support frame 10.12 for supporting a prefabrication tool comprises an upper support plate and a lower support plate parallel to each other, which are connected by a gusset.
In another technical scheme, the upper surface of the connection bearing platform 7 is also provided with a pad layer 10.13, and grouting holes are formed in the pad layer. The pier column 6.2 is positioned on the heightening layer 10.13, and grouting Kong Fangbian is used for filling grouting materials into the grouting sleeve 10.10, so that concrete can be filled into the grouting holes of the heightening layer 10.13 after the pier column 6.2 is erected above the connection bearing platform 7. The specific shape of the elevating layer 10.13 is not limited, and the elevating layer 10.13 may be annular, and grouting holes are formed in the elevating layer, or the elevating layer 10.13 may include a plurality of elevating blocks arranged at intervals, wherein a gap between two adjacent elevating blocks is the grouting hole.
In another technical solution, as shown in fig. 1, 2, 5 and 6, the whole span bridge vehicle-mounted equipment comprises:
the two groups of the train units 1 are arranged at intervals in parallel, and the direction of the train units 1 is perpendicular to the driving direction path of the whole bridge 5;
bridge frock is striden to whole, it all sets up one on every group of group 1, bridge frock is striden to whole includes: the bridge girder 4.1 comprises a plurality of transverse I-beams and a plurality of longitudinal I-beams, wherein the plurality of transverse I-beams are arranged at intervals along the length direction of the train unit 1, both ends of the transverse I-beams extend out of both sides of the width direction of the train unit 1, the transverse I-beams are fixed on the train unit 1, the plurality of longitudinal I-beams are arranged at intervals along the width direction of the train unit 1, both ends of the transverse I-beams are positioned in the length direction of the train unit 1 and in the plane of the bridge girder 5, and the longitudinal I-beams are arranged on the lower bottom surface of the bridge girder 5; the whole span bridge steel pipe 4.2 is vertically arranged, one of the junctions of the plurality of transverse I-beams and the plurality of longitudinal I-beams is respectively arranged, and the whole span bridge steel pipe 4.2 is connected with the whole span bridge I-beam 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 along the height direction at intervals; and the diagonal bracing channel steel 4.4 is connected between the part of the transverse I-steel extending out of the car 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 group of the multiple units 1 and used for supporting the whole span bridge 5, so that the whole span bridge 5 is ensured to be stable in the moving process. The transverse I-beams are arranged at intervals according to the length of the train unit 1, and the length of the longitudinal I-beams at the top is arranged according to the width of the whole span bridge 5. The train unit 1 has the functions of moving and lifting, and meets the construction requirements of moving and lifting the falling beam of the whole bridge 5.
In another aspect, as shown in fig. 1 to 4, the pier-onboard equipment includes:
the two groups of the train units 1 are arranged at intervals in parallel, and the direction of the train units 1 is consistent with the driving direction of the whole bridge 5;
the beam carrying support comprises two bailey frames 2.1, wherein the bailey frames 2.1 are arranged on two sides of a pier column 6.2 and are perpendicular to the direction of a car group 1, and the beam carrying support is fixed on the car group 1;
pier stud frock, it sets up the multiunit at the interval on the beam carrying support, pier stud frock all is located pier stud 6.2 inboard, and every group pier stud frock includes:
pier stud I-steel 3.1, it includes the multiunit, every pier stud I-steel 3.1 of group includes upper portion I-steel and lower portion I-steel parallel and all set up along the direction of the car group 1 from top to bottom respectively, the lower portion I-steel is fixed on bailey frame 2.1 through the ring flange, upper portion I-steel is provided with the cushion in order to support the bent cap 6.1 with bent cap 6.1 junction;
The pier stud steel pipes 3.2 are double-row steel pipes, and the pier stud steel pipes 3.2 are supported between each group of upper I-steel and lower I-steel;
and the connecting support 3.3 is used for connecting the adjacent upper I-steel and lower I-steel along the direction of the train unit 1.
In the technical scheme, the pier stud tool is arranged on the trolley group 1 and used for supporting the pier stud 6.2, and the pier stud 6.2 is ensured to be stable in the moving process. The support structure of the present application is not limited to the above-described bailey frame or steel pipe frame, but may be a profile steel frame, an integral support body, or the like.
The invention also provides a pier-beam collaborative integral quick dismantling method based on vehicle-mounted equipment, which comprises the following steps:
a: the whole span bridge 5 and the bridge pier are respectively supported by the whole span bridge vehicle-mounted equipment and the bridge pier vehicle-mounted equipment;
b: removing the connection between the whole span bridge and the bridge pier, and integrally lifting the whole span bridge 5 by utilizing the lifting function of the vehicle-mounted equipment of the whole span bridge;
c: the whole pier is pre-jacked by utilizing the jacking function of the bridge pier vehicle-mounted equipment, the concrete section of the lower end of the bridge pier is basically cut along the lower part of the bridge pier close to the ground, and the bridge pier vehicle-mounted equipment is utilized for transferring and descending and transferring to a girder dropping site along a preset route for pier dropping;
d: the method comprises the steps of utilizing the transfer and descending functions of the whole bridge vehicle-mounted equipment and transferring to a beam falling site along a preset route to fall beams;
E: and finishing the subsequent work.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (9)
1. The method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment is characterized by comprising the following steps of:
s0: after the integral bridge and the bridge pier are designed in a shaping mode, integrally matching and prefabricating on a pedestal in a non-bridge area, wherein an upper embedded part is correspondingly arranged on the lower bottom surface of the pier column when the bridge pier is prefabricated; synchronously constructing a bridge foundation and a connecting bearing platform in a bridge location area, and correspondingly arranging a lower embedded part on the connecting bearing platform when the connecting bearing platform is cast in situ;
s1: the bridge pier is not installed, and the whole bridge is quickly moved to the plane position set by the bridge position through the jacking, moving and descending functions of the vehicle-mounted equipment of the whole bridge, and enough installation clear height is reserved;
s2: the method comprises the steps that by adopting the jacking, moving and descending functions of bridge pier vehicle-mounted equipment, bridge piers are moved to the position above a connecting bearing platform of a bridge position area and the position below a whole span bridge in advance according to design requirements;
S3: the lifting function of the bridge pier vehicle-mounted equipment is adopted to lower and position the bridge pier to a designed position, adjustment of the levelness and the verticality of the bridge pier is completed, then the bridge pier and the connecting bearing platform are effectively consolidated in a connecting mode of an upper embedded part and a lower embedded part which are designed in advance, and the bridge pier vehicle-mounted equipment is removed;
s4: after the bridge pier and the connecting bearing platform are stably solidified by adopting necessary measures, lowering the whole span bridge above a support above the bridge pier according to design requirements by adopting a transfer function and a lifting function of the whole span bridge vehicle-mounted equipment, and removing the whole span bridge vehicle-mounted equipment;
s5: finishing subsequent work and durability protection after bridge installation;
the method for prefabricating the connecting bearing platform and the embedded part at the lower part of the connecting bearing platform in the step S0 specifically comprises the following steps of:
binding a main rib, placing a prefabrication tool, wherein the prefabrication 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 are in one-to-one correspondence with the through holes and 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 a connection bearing platform, the upper parts of the main ribs are in one-to-one correspondence with the lower parts of the grouting sleeves, and the prefabrication tool is supported in the connection bearing platform through a support frame; setting a template of a connecting bearing platform and pouring to meet the design strength requirement;
In the method for prefabricating the pier and the upper embedded part on the pier in the step S0, the upper embedded part is that the main rib of the pier protrudes downwards out of the lower bottom surface of the pier;
in the step S3, the concrete method for effectively solidifying the pier and the connection bearing platform by the upper embedded part and the lower embedded part is as follows: and the main ribs of the piers are inserted into the grouting sleeves in a downward one-to-one correspondence manner, and grouting is performed in the grouting sleeves, so that the quick connection between the piers and the connection bearing platform is realized.
2. The method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 1, wherein for the pier of a plurality of pier columns, the method for prefabricating the connection bearing platform and the embedded part at the lower part thereof in the step S0 is specifically as follows:
s01: binding a main rib of the connection bearing platform, and binding reinforcing ribs on the inner side of the main rib of the connection 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 a shear key annular rib, the shear keys are embedded in a circle, the shear keys are all provided with preformed holes and sequentially pass through the shear key annular rib to form a closed integrated structure, the upper surfaces of the shear keys are welded with the lower panels and are flush with the upper surface of the connecting bearing platform, and the upper ends of the main ribs and the reinforcing ribs penetrate into the lower panels and are welded and fixed;
S04: and setting a template for connecting the bearing platform and pouring to meet the design strength requirement.
3. The method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 2, wherein for the pier of the multi-pier column, the method for prefabricating the pier and the upper embedded part on the pier column in the step S0 specifically comprises the following steps:
setting up the pouring die block in the design position department of every mound post of pier, placing the top board on the die block, annular round fixed a plurality of shear force keys on the top board, a plurality of shear force keys all are provided with the preformed hole and pass through the shear force key hoop muscle and form closed integral type structure, set up ligature main rib and the strengthening rib of mound post, main rib and strengthening rib all pierce into in the top board and welded fastening, pour the pier post and the bent cap on it and reach the design strength requirement.
4. The method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 3, wherein in the step S3, the concrete method for effectively solidifying the pier and the connection bearing platform by the upper embedded part and the lower embedded part is as follows: the upper panel and the lower panel are of annular structures with grouting areas in the center, the upper panel of the pier column and the lower panel of the connecting bearing platform are welded at first, and grouting and fixing are carried out on the grouting areas through grouting seams reserved in the panels.
5. The method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 4, wherein for the pier of the multi-pier column, the method for prefabricating the connection bearing platform and the embedded part below the connection bearing platform in the step S0 further comprises the following steps of: a plurality of grouting sleeves are circumferentially arranged at intervals on the outer side of the lower panel of each lower embedded part, 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 penetrating through the outer part of the connecting bearing platform in the connecting bearing platform;
in the step S3, the method for effectively solidifying the pier and the connection bearing platform by the upper embedded part and the lower embedded part specifically further includes: the vertical ribs are arranged in a circle along the height direction of the pier column in the outside of the pier column, extend to the bottom of the pier, are inserted into the grouting sleeves in a one-to-one correspondence mode, the length of the vertical ribs extending out of the bottom of the pier meets the anchoring length of the grouting sleeve, the vertical ribs are fixed in the grouting sleeve in a grouting mode, the vertical ribs are horizontally arranged on the vertical ribs, the vertical ribs are mutually overlapped with the planting ribs to form a whole, and the casting concrete wraps the vertical ribs and the planting ribs to form a reinforcing structure.
6. The method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 1, wherein the upper surface of the connection bearing platform is further provided with a lifting layer, and grouting holes are arranged on the lifting layer.
7. The method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 1, wherein the whole span bridge vehicle-mounted equipment comprises:
the two groups of the train units are arranged at intervals in parallel, and the direction of the train units is perpendicular to the driving direction path of the whole bridge;
bridge frock is striden to whole, it all sets up one on every group of group, bridge frock is striden to whole includes:
the bridge girder comprises a plurality of transverse I-beams and a plurality of longitudinal I-beams, wherein the plurality of transverse I-beams are arranged at intervals along the length direction of the train unit, the two ends of the transverse I-beams extend out of the two sides of the width direction of the train unit, the transverse I-beams are fixed on the train unit, the plurality of longitudinal I-beams are arranged at intervals along the width direction of the train unit, the two ends of the transverse I-beams are positioned in the length direction of the train unit and in the plane of the bridge girder, and the longitudinal I-beams are arranged on the lower bottom surface of the bridge girder;
the whole span bridge steel pipe is vertically arranged, one of the junctions of the plurality of transverse I-beams and the plurality of longitudinal I-beams is respectively arranged, and the whole span bridge steel pipe is connected with the whole span bridge I-beams through flanges;
the connecting channel steel is transversely and obliquely connected between adjacent whole span bridge steel pipes at intervals along the height direction;
And the diagonal bracing channel steel is connected between the part of the transverse I-steel extending out of the car group and the whole span bridge steel pipe.
8. The method for collaborative integral rapid installation of pier beams based on vehicle-mounted equipment according to claim 1, wherein the pier vehicle-mounted equipment comprises:
the two groups of the train units are arranged at intervals in parallel, and the direction of the train units is consistent with the driving direction of the whole bridge;
the beam carrying support comprises two beam bodies, wherein the beam bodies are arranged on two sides of the pier stud and are perpendicular to the direction of the car group, and the beam carrying support is fixed on the car group;
pier stud frock, it sets up the multiunit at the interval on the beam carrying support, pier stud frock all is located the pier stud inboard, and every group pier stud frock 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 vehicle group, 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 capping beam and used for supporting the capping beam;
the pier column steel pipes are double-row steel pipes, and are supported between each group of upper I-steel and lower I-steel;
And the connecting support is used for connecting the adjacent upper I-steel and lower I-steel along the direction of the vehicle group.
9. The method for quickly removing the pier-beam collaborative whole based on the vehicle-mounted equipment is characterized by comprising the following steps of:
a: supporting the whole span bridge and the bridge pier respectively through the whole span bridge vehicle-mounted equipment and the bridge pier vehicle-mounted equipment;
wherein, whole bridge vehicle-mounted equipment that strides includes:
the two groups of the train units are arranged at intervals in parallel, and the direction of the train units is perpendicular to the driving direction path of the whole bridge;
bridge frock is striden to whole, it all sets up one on every group of group, bridge frock is striden to whole includes:
the bridge girder comprises a plurality of transverse I-beams and a plurality of longitudinal I-beams, wherein the plurality of transverse I-beams are arranged at intervals along the length direction of the train unit, the two ends of the transverse I-beams extend out of the two sides of the width direction of the train unit, the transverse I-beams are fixed on the train unit, the plurality of longitudinal I-beams are arranged at intervals along the width direction of the train unit, the two ends of the transverse I-beams are positioned in the length direction of the train unit and in the plane of the bridge girder, and the longitudinal I-beams are arranged on the lower bottom surface of the bridge girder;
the whole span bridge steel pipe is vertically arranged, one of the junctions of the plurality of transverse I-beams and the plurality of longitudinal I-beams is respectively arranged, and the whole span bridge steel pipe is connected with the whole span bridge I-beams through flanges;
The connecting channel steel is transversely and obliquely connected between adjacent whole span bridge steel pipes at intervals along the height direction;
the diagonal bracing channel steel is connected between the part of the transverse I-steel extending out of the car group and the whole span bridge steel pipe;
the bridge pier vehicle-mounted device comprises:
the two groups of the train units are arranged at intervals in parallel, and the direction of the train units is consistent with the driving direction of the whole bridge;
the beam carrying support comprises two beam bodies, wherein the beam bodies are arranged on two sides of the pier stud and are perpendicular to the direction of the car group, and the beam carrying support is fixed on the car group;
pier stud frock, it sets up the multiunit at the interval on the beam carrying support, pier stud frock all is located the pier stud inboard, and every group pier stud frock 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 vehicle group, 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 capping beam and used for supporting the capping beam;
the pier column steel pipes are double-row steel pipes, and are supported between each group of upper I-steel and lower I-steel;
the connecting support is used for connecting the adjacent upper I-steel and lower I-steel along the direction of the vehicle group;
B: removing the connection between the whole span bridge and the bridge pier, and integrally lifting the whole span bridge by utilizing the lifting function of the vehicle-mounted equipment of the whole span bridge;
c: the whole pier is pre-jacked by utilizing the jacking function of the bridge pier vehicle-mounted equipment, the concrete section of the lower end of the bridge pier is basically cut along the lower part of the bridge pier close to the ground, and the bridge pier vehicle-mounted equipment is utilized for transferring and descending and transferring to a girder dropping site along a preset route for pier dropping;
d: the method comprises the steps of utilizing the transfer and descending functions of the whole bridge vehicle-mounted equipment and transferring to a beam falling site along a preset route to fall beams;
e: and finishing the subsequent work.
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| JPH08151605A (en) * | 1994-11-30 | 1996-06-11 | Kajima Corp | Manufacture of precast block for bridge and its device |
| JP2004278230A (en) * | 2003-03-18 | 2004-10-07 | Toda Constr Co Ltd | Method of constructing grade separation of roads, and pier connection structure |
| CN107806109A (en) * | 2017-09-28 | 2018-03-16 | 中交第公路勘察设计研究院有限公司 | Precast assembly bridge pier attachment means and its construction method |
| CN108457172A (en) * | 2018-04-03 | 2018-08-28 | 中国建筑第五工程局有限公司 | Assembling type girder bridge and construction method |
| CN108824193A (en) * | 2018-06-08 | 2018-11-16 | 武汉二航路桥特种工程有限责任公司 | Bridge superstructure quickly removes, installation method and its replacement system |
| 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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