CN115506258A - Prefabricated bent cap positioning and mounting device and method - Google Patents
Prefabricated bent cap positioning and mounting device and method Download PDFInfo
- Publication number
- CN115506258A CN115506258A CN202211284514.5A CN202211284514A CN115506258A CN 115506258 A CN115506258 A CN 115506258A CN 202211284514 A CN202211284514 A CN 202211284514A CN 115506258 A CN115506258 A CN 115506258A
- Authority
- CN
- China
- Prior art keywords
- positioning
- prefabricated
- capping beam
- steel bar
- positioning frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a prefabricated bent cap positioning and mounting device and a method, comprising a working platform, a positioning device and a mounting device; the working platform is arranged on the outer ring of the prefabricated pier stud; the positioning device consists of a telescopic device, an electromagnet, a fan and a positioning frame, the telescopic device is arranged at two ends of the working platform, and the electromagnet is arranged at the telescopic end of the telescopic device; the positioning frame is used for installing a prefabricated bent cap, opposite electromagnets corresponding to the electromagnets are arranged at two ends of the positioning frame, and the fan is installed on the electromagnet insulating shells at two ends of the positioning frame; the installation device consists of a lifting platform, a hoisting device and a steel bar positioning device, wherein the hoisting device is installed on the upper side of the working platform, the lifting platform is installed at the top of the hoisting device, the lifting platform is provided with a corresponding hole according to the cross section profile of the top end of the pier stud, and the hole can accommodate the top end of the pier stud; and a steel bar positioning device is arranged on the outer ring of the opening.
Description
Technical Field
The invention relates to the technical field of assembly type bridge building assembly, in particular to a prefabricated cover beam mounting and positioning device and method.
Background
In the existing installation technology of prefabricated parts, in order to improve the connection strength between the prefabricated capping beam and the prefabricated upright column, a certain length is usually reserved when a longitudinal stressed steel bar of the prefabricated upright column is designed, so that the longitudinal stressed steel bar extends out of the top end face of the prefabricated upright column, and the extending length is generally related to the height of the prefabricated capping beam. In addition, the installation holes corresponding to the positions of the prefabricated upright posts extending out of the steel bars can be reserved during the design of the prefabricated capping beam, and the installation holes are reserved in a mode of embedding metal corrugated pipes generally during the production of the prefabricated capping beam. During splicing and installation, the stress steel bars reserved on the prefabricated stand columns correspond to the mounting holes reserved on the prefabricated capping beams one by one and are inserted into the mounting holes for splicing, and finally grouting materials are poured into the metal corrugated pipes to complete the connection and installation of the prefabricated capping beams and the prefabricated stand columns.
However, certain problems also arise in actual installation. In order to enable the prefabricated capping beam to be accurately positioned and connected to the top end face of the prefabricated stand column, each connecting hole is required to be spliced with one corresponding reserved steel bar, the prefabricated capping beam is in a hoisting state during installation and splicing, the angle and the position of the prefabricated capping beam are adjusted in the air until the two are correspondingly connected, and a large amount of labor cost and time cost are required to be input in the adjusting process. In addition, in the processes of storage, transportation, erection and installation after the prefabricated upright post is prefabricated, the reserved steel bars may be bent and deformed, and if installation and splicing are required, the prefabricated upright post is generally straightened manually at present so that the prefabricated upright post can be smoothly inserted into the reserved hole of the prefabricated cover beam, and a large amount of labor cost and time cost are required to be invested in the process. These occurrences all make current assembly methods less efficient.
To sum up, if the problem of positioning and mounting of the prefabricated cover beam needs to be solved, a quick positioning and mounting device is needed to be arranged on the market.
Disclosure of Invention
Based on the current research situation, the invention aims to provide a prefabricated capping beam positioning and mounting device, and mainly provides a quick positioning and mounting device which is suitable for connecting and mounting a prefabricated capping beam and a prefabricated stand column in the installation process of a prefabricated part.
The invention adopts the following technical scheme:
in a first aspect, the invention provides a prefabricated bent cap positioning and mounting device which mainly comprises three parts, namely a working platform, a positioning device and a mounting device;
the working platform is arranged on the outer ring of the prefabricated pier stud;
the positioning device consists of a telescopic device, an electromagnet, a fan and a positioning frame, the telescopic device is arranged at two ends of the working platform, and the electromagnet is arranged at the telescopic end of the telescopic device; the positioning frame is used for installing a prefabricated cover beam, opposite electromagnets corresponding to the electromagnets are arranged at two ends of the positioning frame, and the fan is arranged on the electromagnet insulating shells at two ends of the positioning frame;
the installation device consists of a lifting platform, a hoisting device and a steel bar positioning device, wherein the hoisting device is installed on the upper side of the working platform, the lifting platform is installed at the top of the hoisting device, a corresponding hole is reserved in the lifting platform according to the cross section profile of the top end of the pier stud, and the hole can accommodate the top end of the pier stud to pass through; and a steel bar positioning device is arranged on the outer ring of the opening.
As a further technical scheme, work platform by bearing bracket, work plane and connecting plate, bearing bracket is fixed mounting in pairs in the pier stud side, state work plane fixed mounting two that are located different pier stud homonymies on the bearing bracket, the connecting plate is with two work plane connection is fixed and is become whole.
As a further technical scheme, the bearing bracket is fixedly arranged on the side surface of the pier column in pairs through prefabricated pier column reserved hoisting channels or cast-in-place pier column reserved mounting channels.
As a further technical scheme, the lifting device consists of four groups of electro-hydraulic telescopic devices, and the four groups of electro-hydraulic telescopic devices are arranged on the working platform.
As a further technical scheme, the positioning frame is integrally made of a high-strength aluminum alloy material or steel subjected to demagnetization treatment.
According to a further technical scheme, the steel bar positioning device comprises an electric steel bar hoop and a hoop limiting stopper, and the electric steel bar hoop is installed and fixed in the hoop limiting stopper according to the position of a corresponding steel bar.
As a further technical scheme, the hoop limiter is provided with a top cover plate and a hoop fixing bin, the cover plate is fixed to the top of the hoop fixing bin through bolts, and bolt holes corresponding to the number and the positions of reserved steel bars are formed in the bottom of the hoop fixing bin to position and install the electric steel bar hoops.
As a further technical scheme, the electric steel bar hoop is fixed on the outer ring of the reserved hole of the lifting platform.
As a further technical scheme, the number and the relative position of the electric reinforcing steel bar hoops are determined by the number and the positions of the reserved reinforcing steel bars at the top end of the pier column.
In a second aspect, based on the above apparatus, the present invention further provides an installation method, specifically as follows:
after the pier stud is installed or poured, the bearing bracket is installed to the side face of the pier stud, and the working platform, the installation device and the telescopic device provided with the electromagnet are sequentially assembled and fixed.
And controlling an electric steel bar hoop in the mounting device to tightly hold the steel bar, slowly lifting the mounting device, straightening the bent and deformed steel bar and fixing the bent and deformed steel bar at a target position.
After the prefabricated bent cap is transported to the site, the positioning frame is installed above the prefabricated bent cap, and the prefabricated bent cap and the positioning frame are lifted to the upper side of the pier stud by using the crawler crane.
The high-pressure fan is controlled to preliminarily adjust the aerial postures of the prefabricated bent cap and the positioning frame, the prefabricated bent cap and the positioning frame are kept relatively stable above a target position as much as possible, all electromagnet switches are turned on simultaneously, the expansion device is controlled to extend, electromagnets at the end parts of the expansion device are close to electromagnets at the two ends of the positioning frame, and after the corresponding electromagnets are combined together, the prefabricated bent cap and the positioning frame are fixed at the target position through magnetic force among the electromagnets. The telescopic device is controlled to shorten so that the height of the prefabricated cover beam and the height of the positioning frame synchronously descend, and meanwhile, the hoisting device is controlled so that the mounting device ascends.
After confirming that the reserved steel bars of the pier stud correspond to the pre-buried metal corrugated pipe of the prefabricated cover beam accurately, controlling the hoisting device to enable the top surface of the mounting device to be in complete contact with the bottom surface of the prefabricated cover beam, separating the prefabricated cover beam from a crane lifting appliance, closing all electromagnet power supplies, and removing and withdrawing the positioning frame from the upper side of the cover beam by using a crane. And controlling the hoisting device to enable the prefabricated capping beam to fall to the top surface of the prefabricated pier stud, dismounting the device from top to bottom from two sides of the pier stud after the installation is finished, and finishing and withdrawing, wherein if other construction needs exist, the working platform can be reserved until the construction is finished, and then dismounting, finishing and withdrawing are carried out.
The invention has the beneficial effects that:
the invention provides a positioning and mounting device for a prefabricated bent cap, which can realize quick positioning and mounting of the prefabricated bent cap, reduce the mounting and construction difficulty of the prefabricated bent cap, reduce the labor and time cost investment in the construction process and improve the construction efficiency.
The invention basically adopts the assembly type fittings, has good stability and quick and convenient installation, and is very suitable for engineering sites with crude construction conditions.
According to the invention, through designing and applying various electric devices, the construction steps of steel bar positioning, bent cap installation and the like are rapidly completed, and the accuracy and safety of installation construction can be effectively improved.
The invention can be adapted to pier studs with different sections and bent caps with different specifications by designing and replacing the mounting device according to the top end profile of the pier stud, thereby reducing the equipment demand and the engineering cost.
The invention can provide a certain working platform for other working procedures of high-altitude operation in construction, further integrate various engineering equipment used in other working procedures, reduce construction time and equipment cost and obviously improve construction efficiency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic structural view of a positioning frame used in cooperation with the structure of fig. 2 in embodiment 1 of the present invention;
FIG. 2 is a schematic front view of the working platform, the mounting device and a part of the positioning device according to embodiment 1 of the present invention;
fig. 3 and 4 are schematic side views of the overall structure of embodiment 1 of the present invention;
FIG. 5 is a schematic top view of a structure other than the positioning frame in embodiment 1 of the present invention;
FIG. 6 is a schematic top view of a spacer according to embodiment 1 of the present invention;
fig. 7, 8 and 9 are schematic structural views of the electric reinforcing bar hoop in the invention;
fig. 10 is a schematic view of the ferrule holding chamber, the cover plate and the electrical reinforcing bar ferrule in embodiment 1 of the present invention;
fig. 11 and 12 are schematic layout views of the electric reinforcing steel bar hoop in the hoop fixing bin in embodiment 1 of the present invention;
FIG. 13, FIG. 14, FIG. 15, FIG. 16 and FIG. 17 are schematic diagrams of practical application processes of embodiment 1 of the present invention;
in the figure: 1. the device comprises a working platform, 101, a bearing bracket, 102, a working plane, 103, a connecting plate, 104, a railing, 2, a positioning device, 201, a first hydraulic telescopic rod, 202, a first electromagnet main body, 203, a first electromagnet contact, 204, a second electromagnet main body, 205, a second electromagnet contact, 206, a high-pressure fan, 207, a positioning frame, 3, a mounting device, 301, a second hydraulic telescopic rod, 302, a lifting platform, 303, a hoop fixing bin, 304, a cover plate and 305, an electric steel bar hoop; 4, prefabricating an arched capping beam, and 5 prefabricating a cylindrical pier stud.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As introduced in the background art, the existing precast capping beam installation and construction method has the disadvantages of difficult positioning, multiple construction steps, large investment in manpower, material resources, time and cost, poor construction quality, low construction efficiency and the like, and for the above problems, the embodiment provides a precast capping beam positioning and installation device and method, which are described in detail with reference to fig. 1 to 12, and specifically have the following structures:
the invention provides a prefabricated bent cap positioning and mounting device, which is mainly composed of three parts as shown in figures 1 and 2, and comprises a working platform 1, a positioning device 2 and a mounting device 3;
work platform 1 comprises bearing bracket 101, work plane 102, connecting plate 103, railing 104, bearing bracket 101 reserves hoist and mount pore or cast-in-place pier stud through prefabricated pier stud and reserves mounting hole fixed mounting in the pier stud side, work plane 102 fixed mounting in bearing bracket 101 top, connecting plate 103 fixed mounting in work plane 102's top, railing 104 install in work plane 102's outside edge.
Further, the load-bearing brackets 101 are installed in pairs on the side of the prefabricated pier stud, and in general, four load-bearing brackets are needed. The working planes 102 are fixedly arranged on two bearing brackets which are positioned on the same side of different pier studs, and two working planes 102 are required to be arranged on two sides of each pier stud. Connecting plate 103 will be two the working plane connects fixedly and becomes whole, and the connecting plate need set up three under general condition: middle part connecting plate and two tip connecting plates.
The positioning device 2 comprises two first hydraulic telescopic rods 201, a first electromagnet main body 202, a first electromagnet contact 203, a second electromagnet main body 204, a second electromagnet contact 205, a high pressure fan 206 and a positioning frame 207, wherein the two first hydraulic telescopic rods 201 are respectively arranged on the upper sides of the middle parts of the outer ends of the connecting plates 103 at the left end and the right end of the working platform 1, and the first electromagnet main body 202 and the first electromagnet contact 203 are arranged at the telescopic end of each first hydraulic telescopic rod 201.
Further, the positioning frame 207 is integrally formed of a spliced high-strength aluminum alloy material or a demagnetized steel material.
Furthermore, a second electromagnet main body 204 and a second electromagnet contact 205 which correspond to the first electromagnet main body 202 and the first electromagnet contact 203 in position and have different magnetic poles are arranged at the left end and the right end of the positioning frame 207; see fig. 1; the second electromagnet contact 205 and the first electromagnet contact 203 are adsorbed together, so that the position between the positioning frame 207 and the working platform 1 is fixed.
Further, the high-voltage fans 206 are installed on the front and back of the insulating casing of the second electromagnet main body 204, and high-voltage fans of different models can be selected according to actual conditions; the high pressure fan 206 blows air in the reverse direction of the moving direction of the target to provide a certain thrust for the positioning frame, and when the arched capping beam 4 and the positioning frame 207 are hoisted by a crawler crane, the joint between the crane hook and the lifting rope can be freely twisted, so that the posture of the hoisted object can be adjusted in the hoisting process without needing a great force, and the requirement can be met by adopting the high pressure fan.
In the present embodiment, the two mounting devices 3 are arranged on the working plane 102 and between the adjacent connection plates 103, and are spaced from the connection plates, but in practical application, the number of the mounting devices 3 is set according to the number of the pillars; each installation device 3 consists of a hoisting device and a steel bar positioning device, the hoisting device is installed on the upper side of the working platform, the steel bar positioning device is installed on the upper side of the hoisting device, and specifically, the hoisting device mainly consists of a lifting platform 302 and four groups of second hydraulic telescopic rods 301; the lifting platform 302 reserves a corresponding hole according to the cross section profile of the top end of the pier stud, and the reserved hole of the lifting platform can accommodate the top end of the pier stud to pass through; the 4 hoisting apparatus that group's second hydraulic stretching pole 301 and lift platform 302 are constituteed are installed in work platform 1 upside, correspond with pier stud reserved steel bar position.
The steel bar positioning device mainly comprises a hoop limiter and electric steel bar hoops 305, the number and the relative position of the electric steel bar hoops 305 are determined by the number and the position of reserved steel bars at the top end of a pier stud, the electric steel bar hoops 305 are installed and fixed in the hoop limiter according to the positions of the corresponding steel bars, the hoop limiter is provided with a top cover plate 304 and a hoop fixing bin 303, the cover plate 304 is fixed by bolts, the electric steel bar hoops are installed or modified and need to be opened, the cover plate 304 is opened, bolt holes corresponding to the number and the positions of the reserved steel bars are formed in the bottom of the hoop fixing bin 303, and the electric steel bar hoops are installed in a positioning mode.
Further, the structure of the above-mentioned electric reinforcing bar hoop 305 is shown in fig. 7, 8 and 9, and it includes an electric expansion device and a hoop, the hoop can expand and contract annularly to form a ring, as shown in fig. 7; fig. 8 and 9 are schematic views of a non-telescopic state.
Further, as shown in fig. 10, 11, and 12, the hoop fixing bin 303 is an annular structure, and is installed on the outer ring of the reserved hole of the lifting platform 302, and is coaxially installed with the reserved hole, and a plurality of electric steel bar hoops 305 are arranged along the circumferential direction of the hoop fixing bin 303, the electric steel bar hoops 305 extend and retract along the radial direction of the pier column to clamp the steel bars of the pier column, and the top of the hoop fixing bin 303 is a cover plate 304.
Specifically, the working platform 1 in this embodiment is fixedly mounted at the top end of the pier, the first hydraulic telescopic rod 201, the first electromagnet main body 202, the first electromagnet contact 203 and the mounting device 3 in the positioning device 2 are fixedly mounted on the upper side of the working platform 1, and the second electromagnet main body 204, the second electromagnet contact 205, the high pressure fan 206 and other devices are mounted on the positioning frame 207. There is no direct attachment mounting portion between the spacer 207 and the work platform 1. The bearing bracket 101 is fixedly installed on the side surface of the pier column through a prefabricated pier column reserved hoisting hole or a cast-in-place pier column reserved installation hole, and 4 bearing brackets 101 are installed on the two pier columns.
The working planes 102 are fixedly arranged above the two bearing brackets 101 which are positioned on the same side of the pier stud through bolts, and 2 working planes 102 are arranged on two sides of the pier stud; three connecting plates 103 are respectively fixedly installed at the left end and the right end of the working plane 102 and the upper side of the middle position through bolts to connect the working plane 102 into a whole.
Furthermore, an opening capable of accommodating the top end of the pier column is reserved in the lifting platform 302 according to the cross section profile of the top end of the pier column, and a steel bar positioning device consisting of a hoop fixing bin 303, a cover plate 304 and an electric steel bar hoop 305 is arranged on the upper side of the lifting platform 302; the number and relative position of the electric steel bar hoops 305 are determined by the number and position of the reserved steel bars at the top end of the pier column, in the embodiment, 22 steel bars are reserved in each pier column, and the electric steel bar hoops 305 are installed and fixed in the hoop fixing bin 303 according to the positions of the corresponding steel bars; the bottom of the hoop fixing bin 303 is provided with bolt holes corresponding to the number and the positions of reserved steel bars so as to position and install the electric steel bar hoop 305. The cover plate 304 and the ferrule fixing bin 303 form a ferrule limiter, the cover plate 304 is fixed on the upper side of the ferrule fixing bin 303 through bolts, and the cover plate 304 needs to be opened for installing or modifying the electric steel bar ferrule 305.
In the specific working process, as shown in fig. 13-17, the specification of the arched capping beam 4 is shown as 11.46 × 2 × 1.7m in fig. 13-17 of the present invention, the diameter of the cylindrical pier column 2 is 1.4m, 22 pieces of forced steel bars are reserved at the top end, and the specific construction method is as follows:
after the cylindrical pier stud 2 is installed or poured, preparing a corresponding lifting platform 302, a hoop fixing bin 303, a cover plate 304 and an electric reinforcing steel hoop 305 according to the number and the positions of reserved reinforcing steel bars, and assembling a positioning frame 207 according to the size specification of the prefabricated arched cover beam 4; the second electromagnet main body 204, the second electromagnet contact 205, and the high pressure fan 206 are sequentially mounted on the positioning frame 207.
After all the devices are debugged and prepared, the bearing bracket 101 is installed on the side surface of the cylindrical pier stud 2, and the working platform 1, the installation device 3, the first hydraulic telescopic rod 201, the first electromagnet main body 202 and the first electromagnet contact 203 are sequentially assembled and fixed.
The electric reinforcing steel bar hoop 305 in the control installation device 3 tightly holds the reinforcing steel bar, the installation device 3 is slowly lifted, and the bent and deformed reinforcing steel bar is straightened and fixed at the target position.
After the prefabricated arched capping beam 4 is transported to the site, the positioning frame 207 is covered above the prefabricated arched capping beam 4, and the prefabricated arched capping beam 4 and the positioning frame 207 are hoisted above the cylindrical pier stud 2 by using a crawler crane.
The aerial postures of the prefabricated arched bent cap 4 and the positioning frame 207 are adjusted primarily by controlling the high-pressure fan 206, the prefabricated arched bent cap 4 and the positioning frame 207 are kept relatively stable above a target position as much as possible, meanwhile, all the electromagnets are switched on and off, and the first hydraulic telescopic rod 201 is controlled to extend, so that the first electromagnet main body 202 and the first electromagnet contact 203 which are arranged at the end part of the first hydraulic telescopic rod 201 are close to the second electromagnet main body 204 and the second electromagnet contact 205, and the prefabricated arched bent cap 4 and the positioning frame 207 are fixed at the target position by magnetic force among the electromagnets. The first hydraulic telescopic rod 201 is controlled to be shortened so that the prefabricated arched capping beam 4 descends synchronously with the height of the positioning frame 207, and the second hydraulic telescopic rod 301 is controlled so that the mounting device 3 ascends.
After confirming that the reserved steel bars of the pier stud correspond to the pre-buried metal corrugated pipes of the prefabricated arched bent cap 4 accurately, the second hydraulic telescopic rod 301 is controlled to enable the top surface of the mounting device 3 to be in complete contact with the bottom surface of the prefabricated arched bent cap 4, the prefabricated arched bent cap 4 is separated from a crane hanger, all electromagnet power supplies are turned off, and the positioning frame 207 is removed and retracted from the upper portion of the bent cap by using a crane. And controlling the second hydraulic telescopic rod 301 to enable the prefabricated arched bent cap beam 4 to fall to the top surface of the cylindrical pier stud 2, dismounting the device from top to bottom from two sides of the cylindrical pier stud 2 after the installation is finished, and finishing and withdrawing, wherein the working platform 1 can be maintained until the construction is finished and dismounted, and finishing and withdrawing if other construction needs exist.
The construction device for mounting the prefabricated capping beam is practically provided on the basis of a road and bridge engineering construction site, the construction device can be suitable for various pier studs, meanwhile, the prefabricated capping beam can be quickly and accurately positioned and mounted, the construction speed of the prefabricated capping beam can be effectively increased, the construction precision is improved, the construction cost is reduced, and the construction efficiency is improved.
The device is the assembled basically, and stability is good and the installation is quick, convenient, very is fit for the engineering scene that the construction condition is crude.
The device adopts intelligent control, and technical personnel can control all intelligent machines such as hydraulic means, electro-magnet and electronic cuff, has improved field work's security and work efficiency greatly, has not only improved construction safety and speed, has also practiced thrift valuable manpower resources for the scene.
The device accessible is changed lift platform, cuff stopper and electronic cuff in order being suitable for multiple system pier stud, further reduces the equipment demand in the whole engineering, reduces the cost of engineering.
The device can provide certain work platform for other high altitude construction processes in the construction, reserves working space for integrating various engineering equipment that use in other processes, further reduces engineering time and equipment cost, further promotes the efficiency of construction.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A prefabricated bent cap positioning and mounting device is characterized by comprising a working platform, a positioning device and a mounting device;
the working platform is arranged on the outer ring of the prefabricated pier column;
the positioning device consists of a telescopic device, an electromagnet, a fan and a positioning frame, the telescopic device is arranged at two ends of the working platform, and the electromagnet is arranged at the telescopic end of the telescopic device; the positioning frame is used for installing a prefabricated bent cap, opposite electromagnets corresponding to the electromagnets are arranged at two ends of the positioning frame, and the fan is installed on the electromagnet insulating shells at two ends of the positioning frame;
the installation device consists of a lifting platform, a hoisting device and a steel bar positioning device, wherein the hoisting device is installed on the upper side of the working platform, the lifting platform is installed at the top of the hoisting device, a corresponding hole is reserved in the lifting platform according to the cross section profile of the top end of the pier stud, and the hole can accommodate the top end of the pier stud to pass through; and a steel bar positioning device is arranged on the outer ring of the opening.
2. The precast capping beam positioning and mounting device of claim 1, wherein the working platform comprises bearing brackets, working planes and connecting plates, the bearing brackets are fixedly mounted on the side surfaces of the piers in pairs, the working planes are fixedly mounted on the two bearing brackets on the same side of different piers, and the connecting plates connect and fix the two working planes into a whole.
3. The prefabricated bent cap positioning and mounting device of claim 2, wherein the bearing bracket is fixedly mounted on the side surface of the pier column in pairs through a prefabricated pier column reserved hoisting hole or a cast-in-situ pier column reserved mounting hole.
4. The precast capping beam positioning and mounting device of claim 1, wherein the lifting means is comprised of four groups of electro-hydraulic telescopic means, and the four groups of electro-hydraulic telescopic means are mounted on the working platform.
5. The precast capping beam positioning and installing device of claim 1, wherein the positioning frame is integrally made of a high-strength aluminum alloy material or a demagnetized steel material.
6. The precast capping beam positioning and mounting device of claim 1, wherein the steel bar positioning device is composed of an electric steel bar hoop and a hoop stopper, and the electric steel bar hoop is mounted and fixed in the hoop stopper according to the position of the corresponding steel bar.
7. The prefabricated bent cap positioning and mounting device of claim 6, wherein the hoop limiting stopper is provided with a top cover plate and a hoop fixing bin, the cover plate is fixed at the top of the hoop fixing bin through bolts, and the bottom of the hoop fixing bin is provided with bolt holes corresponding to the number and the positions of reserved steel bars so as to position and mount the electric steel bar hoops.
8. The precast capping beam positioning and mounting device of claim 6, wherein the electric reinforcing steel hoop is fixed on the outer ring of the reserved hole of the lifting platform.
9. The precast capping beam positioning and installing device of claim 6, wherein the number and relative position of the electric reinforcing steel bar hoops are determined by the number and position of the reinforcing steel bars reserved at the top end of the pier column.
10. A method of erecting by using the precast capping beam positioning and erecting device according to any one of claims 1 to 7, wherein the following:
after the pier stud is installed or poured, the working platform is installed on the side surface of the pier stud, and a telescopic device, an electromagnet and an installation device of a positioning device are installed on the working platform;
controlling an electric steel bar hoop in the mounting device to tightly hold the steel bar, slowly lifting the mounting device, straightening the bent and deformed steel bar and fixing the bent and deformed steel bar at a target position;
after the prefabricated capping beam is transported to the site, mounting a positioning frame above the prefabricated capping beam, and hoisting the prefabricated capping beam and the positioning frame above the pier stud by using a crawler crane;
the air postures of the prefabricated capping beam and the positioning frame are preliminarily adjusted by controlling the high-pressure fan, the prefabricated capping beam and the positioning frame are kept relatively stable above a target position as much as possible, all electromagnet switches are turned on and the extension of the telescopic device is controlled, electromagnets at the end parts of the telescopic device are close to electromagnets at two ends of the positioning frame, and after corresponding electromagnets are combined together, the prefabricated capping beam and the positioning frame are fixed at the target position by magnetic force among the electromagnets; controlling the telescopic device to shorten so that the heights of the prefabricated capping beam and the positioning frame synchronously descend, and simultaneously controlling the hoisting device to lift the mounting device;
after confirming that the reserved steel bars of the pier stud correspond to the pre-buried metal corrugated pipe of the prefabricated capping beam accurately, controlling the hoisting device to enable the top surface of the mounting device to be in complete contact with the bottom surface of the prefabricated capping beam, separating the prefabricated capping beam from a crane lifting appliance, turning off all electromagnet power supplies, and removing and withdrawing the positioning frame from the upper side of the capping beam by using a crane; and controlling the hoisting device to enable the prefabricated capping beam to fall to the top surface of the prefabricated pier stud, and finishing the installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284514.5A CN115506258A (en) | 2022-10-17 | 2022-10-17 | Prefabricated bent cap positioning and mounting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284514.5A CN115506258A (en) | 2022-10-17 | 2022-10-17 | Prefabricated bent cap positioning and mounting device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115506258A true CN115506258A (en) | 2022-12-23 |
Family
ID=84511043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211284514.5A Pending CN115506258A (en) | 2022-10-17 | 2022-10-17 | Prefabricated bent cap positioning and mounting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115506258A (en) |
-
2022
- 2022-10-17 CN CN202211284514.5A patent/CN115506258A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2479430B1 (en) | Method for assembling shell segments for forming tower sections of a hybrid wind turbine tower | |
| CN108612254A (en) | A kind of prefabricated panel and its connection structure and its construction method | |
| CN110726615B (en) | Loading device suitable for T-shaped beam column node test and application method thereof | |
| CN111719757B (en) | Method and system for integrally lifting asymmetric inner ring truss and cable dome | |
| CN111424822A (en) | Support-free construction method for annular large cantilever cable bearing grid structure | |
| CN112267709A (en) | Segmented demolition construction method for large-span beam string structure | |
| CN112030772A (en) | Rapid construction method of continuous rigid frame bridge | |
| CN111663457A (en) | Assembly module, modular construction platform and method and bridge abutment construction method | |
| JP2639361B2 (en) | Construction method of steel pipe / concrete composite structure pier | |
| CN115506258A (en) | Prefabricated bent cap positioning and mounting device and method | |
| CN109989590B (en) | Auxiliary fixing device for mounting roof overlong steel beam and hoisting method of steel beam | |
| CN108952207B (en) | Steel structure building storey adding structure and storey adding method | |
| CN217150619U (en) | Annular steel structure mounting structure | |
| CN115288300A (en) | Integral lifting method for single-layer spherical reticulated shell dome | |
| CN114856287A (en) | Construction method of thin-wall steel cylinder hollow tower column | |
| CN212612011U (en) | Hoop support for cylindrical pier | |
| CN104372948A (en) | Elevator shaft formwork lifting frame | |
| CN210636685U (en) | Steel bar connecting structure of precast concrete beam and precast concrete vertical component | |
| WO2008000054A1 (en) | Autoliftable bridge crane system for building and tower construction | |
| CN111287459B (en) | Construction method of anchoring tower barrel section | |
| JP2907264B2 (en) | Method of assembling cylindrical huge structure and roof with hanging balance mechanism | |
| JPH04161566A (en) | Constructing apparatus for large space building | |
| CN115110640B (en) | Method for installing circular ring steel truss of experimental building | |
| CN104818675A (en) | Assembling method of rebar segments | |
| CN113216415B (en) | Conveniently-built lifting plate rise assembly building and building method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |