CN112663498A - Quick installation and closure construction method for splicing plates of steel beam bolting closure section - Google Patents
Quick installation and closure construction method for splicing plates of steel beam bolting closure section Download PDFInfo
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- CN112663498A CN112663498A CN202011302623.6A CN202011302623A CN112663498A CN 112663498 A CN112663498 A CN 112663498A CN 202011302623 A CN202011302623 A CN 202011302623A CN 112663498 A CN112663498 A CN 112663498A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention relates to a quick installation and closure construction method of a splicing plate of a bolted closure section of a steel beam, which comprises the steps of positioning a hinge device, installing the splicing plate on a beam body of the closure section through the hinge device, temporarily fixing the required splicing plate in the end surface of the beam body of the closure section before hoisting the beam body of the closure section, effectively ensuring the hoisting safety and facilitating the hoisting operation, dismantling the temporary fixation during closure, directly rotating the splicing plate to the position to be connected of the beam body of the closure section and the installed beam section outside the end surface of the beam body of the closure section, fixing the splicing plate through a bolt to complete the closure of the installed beam section and the beam body of the closure section, avoiding the need of secondary positioning during closure, avoiding the need of hoisting the splicing plate outside the beam body of the closure section, reducing the construction difficulty of the splicing plate of the beam body of the closure section and the installed beam section at high altitude, and improving the efficiency during the construction of the splicing plate of the beam body of the closure section and the installed beam section, Reducing construction period and reducing construction safety risk.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a quick installation and closure construction method for a splicing plate of a steel beam bolting closure section.
Background
With the development of times, the steel structure is generally applied to the building industry due to the advantages of light self weight, large bearing capacity, short construction period and the like. During the closure installation process of steel beam erection, the splice plates are generally placed on the inner side of a closure section beam body in advance, after the closure section beam body is hoisted to be aligned with the installed beam section, the splice plates are slowly dragged and continuously positioned by manually matching lifting equipment such as a chain hoist and the like to enable the splice plates to reach the designated position, and then fixed construction is carried out. The construction method for dragging the splicing plates to the designated positions is carried out at high altitude after alignment of a closure section beam body and an installed beam section, the height of the splicing plates inside the closure section beam body is lifted through a chain hoist, then the splicing plates are dragged by constructors to reach the connecting positions corresponding to the splicing plates, then the splicing plates are adjusted to enable screw holes on the splicing plates to correspond to screw holes on the closure section beam body and screw holes on the installed beam section, meanwhile, the splicing plates are dragged outside the closure section beam body, the screw holes on the outer splicing plates correspond to screw holes on the closure section beam body and screw holes on the installed beam section, then the closure section beam body and the installed beam section are connected through the outer splicing plates and the inner splicing plates in a bolted mode, the work efficiency of the whole adjusting process needs to be constantly positioned and adjusted, the work efficiency is very complicated, and the splicing plates are enabled to connect the closure section beam body and the installed beam section in high altitude, and the work efficiency of the low-level beam section and the installed beam section is very complicated, The construction period is long, and simultaneously, because of narrow space in the box, personnel's operational environment is abominable, splice plate is many in quantity, weight is big, and construction safety risk is great. The splicing plates of the closure section beam body are difficult to ensure safe and efficient installation in the prior art, and quick closure alignment of the closure section beam body is realized.
Disclosure of Invention
The invention aims to: the construction method is characterized in that the splice plates are placed on the inner sides of the closure section beam bodies in advance in the closure installation process of steel beam erection in the prior art, after the closure section beam bodies are hoisted in place, the splice plates are slowly dragged and continuously positioned to reach the appointed position, and the construction method is low in work efficiency, long in construction period, narrow in space in a box, severe in personnel operation environment, large in number and weight of the splice plates and high in construction safety risk.
In order to achieve the purpose, the invention adopts the technical scheme that:
a construction method for quickly installing and closing a splice plate of a steel beam bolting and closing section comprises the following steps:
A. according to the design, a hinge device is adopted on the inner side of a first web plate of a closure section beam body to install a web plate inner side splicing plate, a hinge device is adopted on the outer side of the first web plate to install a web plate outer side splicing plate, a hinge device is adopted on the upper side of a first bottom plate of the closure section beam body to install a bottom plate upper side splicing plate, and a hinge device is adopted on the lower side of the first bottom plate to install a bottom plate lower side splicing plate;
temporarily fixing the splicing plate on the inner side of the web plate in the closed section beam body through a first fixing piece, and temporarily fixing the splicing plate on the upper side of the bottom plate in the end face of the closed section beam body through a second fixing piece;
B. hoisting the closure section beam body to a specified position for closure construction with the installed beam section;
C. removing the second fixing piece, and rotating the bottom plate lower side splicing plate to the bottom plate lower side splicing plate and the bottom plate upper side splicing plate to clamp the first bottom plate and the second bottom plate of the installed beam section and fix the first bottom plate and the second bottom plate through bolts; and removing the first fixing piece, rotating the web plate inner side splicing plate to the web plate inner side splicing plate and the web plate outer side splicing plate to clamp the web plate I and the web plate II of the installed beam section and fixing the web plate I and the web plate II through bolts, and finishing the closure construction of the steel beam bolt joint section.
In the closure installation process of steel beam erection, a closure section beam body and an installed beam section need to be aligned and then connected through a splicing plate. The closure section beam body and the installed beam section are of box-shaped structures, the closure section beam body comprises a first bottom plate, two first webs and a first top plate, and the interior of the closure section beam body is a space defined by the two first webs, the first bottom plate and the first top plate; correspondingly, the installed beam section comprises a second bottom plate, two second webs and a second top plate. The splice plates for connecting the closure section beam body and the installed beam section comprise a bottom plate lower side splice plate, a bottom plate upper side splice plate, a web plate inner side splice plate and a web plate outer side splice plate, and the bottom plate lower side splice plate and the bottom plate upper side splice plate are respectively provided with bolt holes corresponding to the bottom plate I and the bottom plate II; the web plate inner side splicing plate and the web plate outer side splicing plate are respectively provided with bolt holes corresponding to the web plate I and the web plate II. The closed section beam body in the closed section beam body end face is connected with the inner side of the end face of the mounted beam section, and the closed section beam body outside the closed section beam body end face is connected with the outer side of the end face of the mounted beam section.
Firstly, connecting all splicing plates to a closure section beam body through a hinge device on the ground according to the design, and then temporarily fixing the splicing plates on the inner side of the web plate in the closure section beam body through a first fixing piece; and will through the second mounting will bottom plate upside splice plate is fixed in temporarily close the dragon section roof beam body, make the one end that bottom plate upside splice plate is used for connecting the installation roof beam section is located close dragon section roof beam body in the end, carry out temporary fixation respectively through first mounting and second mounting and can prevent to close dragon section roof beam body when hoist and mount bottom plate upside splice plate and the inboard splice plate free rotation of web, for close dragon section roof beam body and the good environment of installation roof beam section counterpoint, avoid causing the construction inconvenience and reduce the construction danger. The splicing plates on the lower side of the bottom plate and the splicing plates on the outer side of the web plate determine whether to fix and fix positions according to actual construction conditions; hoisting the closure section beam body to a specified position for closure construction with the installed beam section;
then the second fixing piece is dismantled, so that the splice plate on the upper side of the bottom plate can rotate; if the splicing plates on the lower side of the bottom plate are fixed, the splicing plates on the lower side of the bottom plate can rotate after being detached and fixed; and if the splicing plates on the lower side of the bottom plate are not fixed, the splicing plates on the lower side of the bottom plate can rotate. Rotating the bottom plate lower side splicing plate and the bottom plate upper side splicing plate until the bottom plate lower side splicing plate and the bottom plate upper side splicing plate clamp the first bottom plate and the second bottom plate together and fix the first bottom plate and the second bottom plate through bolts, namely completing the connection of the first bottom plate and the second bottom plate; the first fixing piece is disassembled, so that the splicing plate on the inner side of the web plate can rotate; if the splicing plates on the outer side of the web plate are fixed, the splicing plates on the outer side of the web plate are removed and fixed, so that the splicing plates on the outer side of the web plate can rotate; if the web outside splice is not fixed, the web outside splice can rotate. Respectively rotating the web plate inner side splicing plate and the web plate outer side splicing plate until the web plate inner side splicing plate and the web plate outer side splicing plate jointly clamp the web plate I and the web plate II and fix the web plate I and the web plate II through bolts, and thus completing the connection of the web plate I and the web plate II; the first web and the second web can be connected before or after the first bottom plate and the second bottom plate are connected.
Firstly, positioning a hinge device on the ground, then installing splicing plates on the closure section beam body through the hinge device, enabling the splicing plates to rotate around the hinge device on the closure section beam body, temporarily fixing the required splicing plates in the end surfaces of the closure section beam body before hoisting the closure section beam body by rotating the splicing plates, effectively ensuring the hoisting safety and facilitating the hoisting operation, firstly removing the temporary fixing of the splicing plates during closure, then directly rotating the splicing plates to the positions to be connected of the closure section beam body and the installed beam section, namely when the splicing plates on the lower side of the bottom plate and the splicing plates on the upper side of the bottom plate respectively rotate to the positions to be connected when the splicing plates on the first side and the second side of the closure section beam body to be tightly adhered to the first bottom plate and the second bottom plate, the splicing plates on the inner side of the web plate and the splicing plates on the outer side of the web plate respectively rotate to the first web plate and the second web plate to be directly positioned to be connected when the first web plate and the second web plate to be tightly adhered to the second web plate, and then the splice plates are fixed by bolts to complete the closure of the installed beam sections and the closure section beam bodies, so that the closure section beam bodies and the installed beam sections do not need to be positioned again when being closed, and the installation efficiency of the splice plates in high altitude can be improved. And the splicing plates are not required to be hoisted outside the closed section beam body, the construction difficulty of splicing plate construction of the closed section beam body and the installed beam section at high altitude can be reduced, the efficiency can be improved, the construction period can be shortened, and the construction safety risk can be reduced in the construction process of splicing plates of the closed section beam body and the installed beam section.
Preferably, the step a comprises the following steps:
a1, respectively positioning and installing the web plate inner side splicing plate on one inner side of the web plate, positioning and installing the web plate outer side splicing plate on one outer side of the web plate by adopting positioning pieces according to design, and then installing the corresponding hinge devices; according to the design, positioning pieces are adopted to position and install the splicing plates on the upper side of the bottom plate and the splicing plates on the lower side of the bottom plate respectively on the upper side and the lower side of the bottom plate respectively, and then the corresponding hinge devices are installed;
a2, removing all the positioning pieces, then respectively rotating the web plate inner side splicing plates and the bottom plate upper side splicing plates towards the closure section beam body, and then temporarily fixing the web plate inner side splicing plates through first fixing pieces and temporarily fixing the bottom plate upper side splicing plates through second fixing pieces.
Earlier through the setting element with the splice plate location the position of waiting to connect on the closure section roof beam body, half of splice plate this moment is the position of waiting to connect that is used for connecting the installed beam section, and half passes through the setting element location position of waiting to connect on the closure section roof beam body, if: the positioning is carried out through the bolt holes in the closure section beam body and the bolt holes in the splicing plates, and then the positioning is carried out through the positioning piece, and the positioning piece only needs to be positioned through partial bolt holes because the splicing plates and the bolt holes corresponding to the closure section beam body are large, so that the positioning piece is convenient to remove in the later period; the positioning of the splice plates provides reference for the mounting positions of the corresponding hinge devices, and the precision of the mounting positions of the hinge devices can be improved. And the hinge devices can be positioned, one splicing plate can be positioned to install the hinge devices corresponding to the splicing plates, the hinge devices can be installed uniformly after all the splicing plates are positioned, after the hinge devices are installed, the positioning element needs to be detached, all the splicing plates can rotate around the corresponding hinge devices, and the splicing plates on the inner side of the web plate and the splicing plates on the upper side of the bottom plate can rotate, and then are temporarily fixed inside the closure section beam body through the first fixing element, and are temporarily fixed in the end face of the closure section beam body through the second fixing element.
Preferably, in the step a2, the first fixing member includes a bolt, and the second fixing member includes a lifting mechanism; the step A2 comprises the following steps:
a21, removing a positioning piece installed on the first web plate, then rotating the web plate inner side splicing plate to the position inside the closed section beam body and tightly attaching to the inner side of the first web plate, rotating the web plate outer side splicing plate to the position outside the closed section beam body and tightly attaching to the outer side of the first web plate, and then fixing through the first fixing piece;
and A22, removing the positioning piece installed on the first bottom plate, and then adopting the lifting mechanism to rotatably lift the splicing plate on the upper side of the bottom plate to one end of the splicing plate for connecting the installed beam section to be positioned in the end face of the closed beam section and keep the end face.
By adopting the mode, the web plate inner side splicing plates and the bottom plate upper side splicing plates can be temporarily fixed on the closure section beam body, so that the closure section beam body is conveniently hoisted and aligned with the installed beam section, and the closure section beam body is favorably hoisted to the appointed position of closure construction with the installed beam section. And will the inboard splice plate of web passes through the bolt fastening and is in the inside of closure section roof beam body, firstly the temporary fixation is comparatively stable, secondly be convenient for demolish and release the inboard splice plate of web to first mounting, and when adopting the bolt fastening, need not to use all bolt holes on the splice plate, it is more loaded down with trivial details to avoid the later stage to demolish first mounting. Fixing the splicing plates on the upper side of the bottom plate in the end faces of the closure section beam bodies through a lifting mechanism, wherein the lifting mechanism can lift the splicing plates on the upper side of the bottom plate, so that the use of manpower is reduced; temporary fixation can be realized, and the beam body at the closure section can be conveniently hoisted and aligned with the installed beam section; the splicing plates on the upper side of the bottom plate can be released conveniently, so that the splicing plates on the upper side of the bottom plate can be rotated to the position where the positioning piece is positioned on the web for a while, namely the splicing plates on the upper side of the bottom plate are positioned at the position to be connected on the closure section beam body. The lifting mechanism can adopt chain hoist structures and the like.
Preferably, in the step a22, the method further includes the steps of: and rotating the splicing plates on the lower side of the bottom plate for 5-25 degrees towards the direction far away from the first bottom plate, and fixing the splicing plates on the first bottom plate by adopting first long bolts.
The splicing plates on the lower side of the bottom plate are rotated for 5-25 degrees and fixed towards the direction far away from the first bottom plate through the first long bolts, so that alignment of a closure section beam body and an installed beam section is facilitated, meanwhile, the splicing plates on the lower side of the first bottom plate can be prevented from shaking when the closure section beam body is hoisted, and the splicing plates on the lower side of the bottom plate can be conveniently rotated to be tightly attached to the first bottom plate and the second bottom plate outside the end face of the closure section beam body, so that the splicing plates on the lower side of the bottom plate can reach the position to be connected of the closure section beam body.
Preferably, the step C includes the steps of:
c1: arranging a cushion block on the upper side of the bottom plate, rotating and descending the splicing plate on the upper side of the bottom plate to be in contact with the cushion block through the lifting mechanism, temporarily connecting the splicing plate on the upper side of the bottom plate with the splicing plate on the lower side of the bottom plate through a second long bolt, removing the first long bolt, removing the cushion block, and screwing the second long bolt to enable the splicing plate on the lower side of the bottom plate and the splicing plate on the upper side of the bottom plate to clamp the first bottom plate and the second bottom plate and fix the first bottom plate and the second bottom plate through bolts;
c2: and removing the corresponding first fixing piece, and respectively rotating the web plate inner side splicing plate and the web plate outer side splicing plate to the outside of the end face of the closure section beam body until the web plate inner side splicing plate and the web plate outer side splicing plate clamp the web plate I and the web plate II and are fixed through bolts, so that closure construction of the steel beam bolt closure section is completed.
The cushion block can adopt a steel wedge and other structures, and the form of arranging the cushion block is convenient for temporarily supporting the bottom plate upper side splicing plates, so that the bottom plate upper side splicing plates and the bottom plate lower side splicing plates on the upper side and the lower side of the first bottom plate can be temporarily connected through the second long bolt, and the first long bolt is convenient to detach. According to the construction mode, the closure section beam body and the installed beam section can be connected through the splicing plates more orderly.
Preferably, the nut of the first long bolt is positioned on the upper side of the first bottom plate, so that the first long screw rod is convenient to disassemble.
Preferably, the positioning piece comprises a positioning bolt and a punching nail, the positioning bolt is used for fixing, the punching nail is used for limiting the bolt holes corresponding to the splicing plates and the closure section beam body, the splicing plates are conveniently positioned by matching the bolt holes corresponding to the splicing plates and the closure section beam body, and reference is further provided for the corresponding hinge devices.
Preferably, the hinge device comprises a shaft and a sleeve sleeved on the shaft, and two ends of the shaft are respectively provided with a limiting structure for limiting the axial movement of the sleeve.
The limiting structures at two ends of the shaft are used for limiting the axial direction of the sleeve, so that the sleeve is prevented from sliding off from the axial direction of the shaft, the sleeve can drive the splicing plates to rotate around the shaft, and the splicing plates are connected with the closure section beam body in a rotating mode.
Preferably, the shaft is a pin shaft, the pin shaft is provided with a pin hole, the pin hole is matched with a cotter pin to limit the sleeve, and the pin shaft is sleeved with two sleeves; one sleeve is fixedly connected with one web plate of the closure section beam body, and the other sleeve is fixedly connected with the web plate inner side splicing plate or the web plate outer side splicing plate; or one of the sleeves is fixedly connected with the first bottom plate and the other sleeve of the closure section beam body is fixedly connected with the lower side splicing plate of the bottom plate or the upper side splicing plate of the bottom plate.
The pin shaft is used as a rotating center of the splice plate, one end of the pin shaft is provided with a limiting structure, the other end of the pin shaft is provided with a pin hole, the pin hole is matched with the split pin to form the limiting structure, axial limitation can be formed on the two sleeves, and the two sleeves can rotate around the pin shaft. The diameter of the pin shaft and the wall thickness of the sleeve are calculated according to the splice plate with the maximum weight. One of the sleeves is connected with the corresponding splicing plate, and the other sleeve is connected with the closure section beam body, so that the splicing plates can be conveniently rotated and connected with the closure section beam body through the hinge device.
Preferably, the inner diameter of the sleeve is 1-3mm larger than the diameter of the shaft, so that the splice plate cannot greatly shake or deviate in the rotating process.
Preferably, a lubricant, such as butter and the like, is arranged on the inner wall of the sleeve and between two adjacent sleeves.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention relates to a quick installation and closure construction method of a steel beam bolted closure section splicing plate, which comprises the steps of firstly positioning a closure device, then using a hinge device to install the splicing plate on a closure section beam body, enabling the splicing plate to rotate around the closure device on the closure section beam body, temporarily fixing the required splicing plate in the end face of the closure section beam body before hoisting the closure section beam body by rotating the splicing plate, effectively ensuring the hoisting safety, facilitating the hoisting operation, firstly removing the temporary fixation of the splicing plate during closure, then directly rotating the splicing plate to the position to be connected of the closure section beam body and an installed beam section, namely when the splicing plate on the lower side of a base plate and the splicing plate on the upper side of the base plate respectively rotate to the position to be connected to a first base plate and a second base plate outwards respectively, the splicing plate on the inner side of a web plate and the splicing plate on the outer side of the web respectively rotate to the end face of the closure section beam body to be tightly attached to the first base plate and the second base plate, namely, the splicing plate on the inner side of the web plate and the splicing plate respectively rotate to The first web and the second web are also directly located at positions to be connected, the splicing plates are fixed through bolts to complete the closure of the installed beam section and the closure section beam body, the closure section beam body and the installed beam section are not needed to be positioned again when the closure is carried out, the splicing plates are not needed to be hoisted outside the closure section beam body, the construction difficulty of splicing plate construction of the closure section beam body and the installed beam section at the high altitude can be reduced, the construction period can be prolonged, and the construction safety risk can be reduced.
Drawings
Fig. 1 is an elevation view of positioning by a positioning member in step a1 in example 1;
FIG. 2 is a plan view showing positioning by the positioning member in step A1 in example 1;
FIG. 3 is an elevation view of the hinge assembly of step A1 in example 1;
FIG. 4 is an elevation view of step A21 in example 1;
FIG. 5 is an elevation view of step A22 in example 1;
FIG. 6 is an elevation view of step C1 in example 1;
FIG. 7 is a schematic view showing the arrangement positions of the spacers in step C1 in example 1;
FIG. 8 is an elevation view of step C2 in example 1 after completion of the execution;
fig. 9 is a schematic view of the structure of the hinge device in embodiment 1;
icon: 1-a sleeve; 2-axis; 3-pin holes; 4-butter oil; 5-punching the nail; 6-positioning bolts; 7-a hinge device; 81-first long bolt; 82-a second long bolt; 9-a lifting mechanism; 10-cushion block; 11-closing the dragon section beam body; 12-a first web; 13-a first bottom plate; 141-web inside splice plate; 142-web outboard splice plates; 151-splicing plates on the upper side of the bottom plate; 152-splice plate under the bottom plate; 22-installed beam section; 221-bottom plate two; 222-web two.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Referring to fig. 1 to 9, arrows in fig. 4 to 8 indicate the rotation direction of the splice plates, the embodiment provides a quick installation and closure construction method for a splice plate of a steel beam bolting and closure section, which includes the following steps:
A. according to the design, a web inner side splicing plate 141 is installed on the inner side of a web plate I12 of a closure section beam body 11 by adopting a hinge device 7, a web outer side splicing plate 142 is installed on the outer side of the web plate I12 by adopting the hinge device 7, a bottom plate upper side splicing plate 151 is installed on the upper side of a bottom plate I13 of the closure section beam body 11 by adopting the hinge device 7, and a bottom plate lower side splicing plate 152 is installed on the lower side of the bottom plate I13 by adopting the hinge device 7;
the web inner side splicing plate 141 is temporarily fixed inside the closed section beam body 11 through a first fixing piece, and the bottom plate upper side splicing plate 151 is temporarily fixed in the end face of the closed section beam body 11 through a second fixing piece;
B. hoisting the closure section beam body 11 to a specified position for closure construction with the installed beam section 22;
C. removing the second fixing piece, and rotating the bottom plate lower side splicing plate 152 until the bottom plate lower side splicing plate 152 and the bottom plate upper side splicing plate 151 clamp the first bottom plate 13 and the second bottom plate 221 of the installed beam section 22 and fix the bottom plates through bolts; and (3) removing the first fixing piece, rotating the web inner splicing plate 141 to the web inner splicing plate 141 and the web outer splicing plate 142 to clamp the first web 12 and the second web 222 of the installed beam section 22, and fixing the web inner splicing plate and the web outer splicing plate through bolts, so that the closure construction of the steel beam bolted joint section is completed.
In the closure installation process of steel beam erection, the closure section beam body 11 and the installed beam section 22 need to be aligned and then connected through the splice plate. The closure section beam body 11 and the installed beam section 22 are both box-shaped structures, the closure section beam body 11 comprises a first bottom plate 13, two first webs 12 and a first top plate, and the inside of the closure section beam body 11 is a space surrounded by the two first webs 12, the first bottom plate 13 and the first top plate; correspondingly, the installed beam section 22 includes a second bottom plate 221, two second webs 222 and a second top plate. The splicing plates comprise a bottom plate lower side splicing plate 152, a bottom plate upper side splicing plate 151, a web inner side splicing plate 141 and a web outer side splicing plate 142, and the bottom plate lower side splicing plate 152 and the bottom plate upper side splicing plate 151 are respectively provided with bolt holes corresponding to the first bottom plate 13 and the second bottom plate 221; the web inner splicing plate 141 and the web outer splicing plate 142 are respectively provided with bolt holes corresponding to the first web 12 and the second web 222. And the closure section beam body 11 may have two structures, wherein the first structure is: the two webs I12 are positioned in the middle of the upper part of the base plate I13, and the splicing plate 151 on the upper side of the base plate under the structure comprises three sub-splicing plates, namely a sub-splicing plate positioned in the middle of the two webs I12 and a sub-splicing plate positioned on the outer side of the two webs I12; the second structure is as follows: the two first webs 12 are positioned on the two sides above the first base plate 13, and the splice plate 151 on the upper side of the base plate under the structure is a whole plate and is arranged between the two first webs 12.
Specifically, in this embodiment, taking the first structure as an example, the splicing plate 151 on the upper side of the bottom plate is shown in fig. 2, and the step a includes the following steps:
a1, respectively positioning and installing the web plate inner side splicing plate 141 on the inner side of the web plate first 12, positioning and installing the web plate outer side splicing plate 142 on the outer side of the web plate first 12 by adopting positioning pieces according to design on the ground, and then installing the corresponding hinge devices 7; positioning and installing the bottom plate upper side splicing plate 151 on the upper side of the first bottom plate 13, positioning and installing the bottom plate lower side splicing plate 152 on the lower side of the first bottom plate 13, and then installing the corresponding hinge devices 7 by adopting positioning pieces according to the design;
as shown in fig. 1-3, the first positioning element is a positioning bolt 6 and a punching nail 5, the web inner side splicing plate 141 and the web outer side splicing plate 142 are respectively and correspondingly positioned on two sides of the web one 12 through the positioning bolt 6 and the punching nail 5, the bottom plate upper side splicing plate 151 and the bottom plate lower side splicing plate 152 are respectively and correspondingly positioned on the upper side and the lower side of the bottom plate one 13, at this time, half of the splicing plates are used for connecting the installed beam section 22, the other half of the splicing plates are positioned on the closure section beam body 11 through the positioning element, and due to the fact that the splicing plates and the closure section beam body 11 have a plurality of corresponding bolt holes, the positioning element only needs to be positioned through partial bolt holes, and the later-stage positioning element can be conveniently detached.
After all the splicing plates are positioned on the closure section beam body 11, the corresponding hinge devices 7 are installed according to the positioned splicing plates, the hinge devices 7 are respectively connected between all the splicing plates and the closure section beam body 11, as shown in fig. 3, the positioning of the splicing plates provides reference for the installation positions of the corresponding hinge devices 7, and the installation position precision of the hinge devices 7 can be improved.
In this embodiment, the hinge device 7 includes a shaft 2 and a sleeve 1 sleeved on the shaft 2, and two ends of the shaft 2 are respectively provided with a limiting structure for limiting the axial movement of the sleeve 1. Specifically, as shown in fig. 9, the shaft 2 is a pin shaft, the pin shaft is provided with a pin hole 3, the pin hole 3 is matched with a cotter pin to limit the sleeve 1, the pin shaft is sleeved with two sleeves 1, one of the sleeves 1 is fixedly connected with the web plate one 12 of the closure section beam body 11, and the other sleeve 1 is fixedly connected with the web plate inner side splice plate 141 or the web plate outer side splice plate 142; or one of the sleeves 1 is fixedly connected with the first bottom plate 13 of the closure section beam body 11, and the other sleeve 1 is fixedly connected with the splicing plate 152 on the lower side of the bottom plate or the splicing plate 151 on the upper side of the bottom plate. The sleeve 1 and the closure section beam body 11 and the sleeve 1 and the splice plate are fixed in a welding connection mode. The bending strength and the shearing strength of the pin shaft and the wall thickness of the sleeve 1 are calculated according to the splicing plate with the maximum weight, as a better implementation mode, the inner diameter of the sleeve 1 is 1-3mm, such as 2mm, larger than the diameter of the shaft 2, so that the splicing plate cannot generate large shaking and deviation in the rotating process; and a lubricant, such as butter 4 and the like, is arranged on the inner wall of the sleeve 1 and between the two adjacent sleeves 1.
After the hinge devices 7 are installed, the positioning elements need to be removed, so that all the splice plates can rotate around the corresponding hinge devices 7. Namely, in the construction step a2, in the embodiment, in the step a2, the first fixing element includes a bolt, the second fixing element includes a lifting mechanism 9, and the lifting mechanism 9 may adopt a chain block or the like structure, as shown in fig. 5; the step A2 comprises the following steps:
a21, removing the positioning piece mounted on the first web plate 12, then rotating the web plate inner side splicing plate 141 to be close to the inner side of the first web plate 12 and rotating the web plate outer side splicing plate 142 to be close to the outer side of the first web plate 12 towards the closure section beam body 11, and then fixing by the first fixing piece, as shown in FIG. 4, the bolt for fixing the splicing plates is not shown in FIG. 4;
a22, dismantling the positioning element installed on the first base plate 13, and then using the lifting mechanism 9 to rotationally lift the splicing plate 151 on the upper side of the base plate to one end, which is used for connecting the installed beam section 22, of the splicing plate, wherein the end is located in the end face of the closed section beam body 11 and is kept, as shown in FIG. 5, the lifting mechanism is located on the top plate of the closed section beam body 11, and the splicing plate 151 on the upper side of the base plate here comprises three sub-splicing plates, namely a sub-splicing plate located in the middle of the two first web plates 12 and a sub-splicing plate located outside the two first web plates 12. The sub-splicing plate located between the two first web plates 12 is lifted to the inside of the closure section beam body 11, and the sub-splicing plate located on the outer sides of the two first web plates 12 is lifted to the upper side of the left end of the first bottom plate 13. And in the step a22, the method further comprises the steps of: and (3) rotating the splicing plate 152 on the lower side of the bottom plate downwards by 5-25 degrees, and fixing the splicing plate on the first bottom plate 13 by using a first long bolt 81, as shown in fig. 5.
After the splice plates 151 on the upper side of the bottom plate are temporarily fixed on the first bottom plate 13, the step B is performed, and the closure section beam body 11 is hoisted to the specified position for closure construction with the installed beam section 22; the designated position refers to the position of the closure section beam body 11 when the closure section beam body 11 and the installed beam section 22 are in a closure state, namely, the first bottom plate 13 of the closure section beam body 11 is aligned with the second bottom plate 221 of the installed beam section 22, and the first web plate 12 of the closure section beam body 11 is aligned with the second web plate 222 of the installed beam section 22, so that the condition that the closure section beam body 11 and the installed beam section 22 can be attached and connected tightly at the same time is provided for the splice plate;
after the closure section beam body 11 and the installed beam section 22 are aligned, constructing a step C, wherein the step C comprises the following steps:
c1: arranging a cushion block 10 on the upper side of the first bottom plate 13, as shown in fig. 6-7, rotating and lowering the upper side splicing plate 151 of the bottom plate to contact with the cushion block 10 through the lifting mechanism 9, temporarily connecting the upper side splicing plate 151 of the bottom plate and the lower side splicing plate 152 of the bottom plate through a second long bolt 82, removing the first long bolt 81, removing the cushion block 10, and tightening the second long bolt 82 to enable the lower side splicing plate 152 of the bottom plate and the upper side splicing plate 151 of the bottom plate to clamp the first bottom plate 13 and the second bottom plate 221 and fix the two bottom plates through bolts, as shown in fig. 8; the cushion block 10 can adopt a structure such as a steel wedge, and the form of arranging the cushion block 10 is convenient for temporarily supporting the bottom plate upper side splicing plate 151, so that the bottom plate upper side splicing plate 151 and the bottom plate lower side splicing plate 152 on the upper side and the lower side of the first bottom plate 13 can be temporarily connected through the second long bolt 82, and the first long bolt 81 can be conveniently detached. According to the construction mode, the closure section beam body 11 and the installed beam section 22 can be connected through the splicing plates more orderly.
C2: and (3) removing the first fixing piece on the first web 12, respectively rotating the first web inner splicing plate 141 and the second web outer splicing plate 142 in the directions shown by arrows in fig. 8, until the first web 12 and the second web 222 are clamped and fixed by bolts by the first web inner splicing plate 141 and the second web outer splicing plate 142, and completing the quick installation and closure construction of the steel beam bolted splice plate.
According to the quick installation and closure construction method of the splicing plates of the steel beam bolted closure sections, in the step A, the splicing plates are rotatably connected to the closure section beam body 11 through the hinge devices 7, and the splicing plates 141 on the inner side of the web plate and the splicing plates 151 on the upper side of the bottom plate are temporarily fixed on the closure section beam body 11 through the first fixing piece and the second fixing piece respectively; b, hoisting the closure section beam body 11 to a specified position for closure construction with the installed beam section 22; because of hinge device 7 has fixed a position in step A, make in step C through demolising first mounting and second mounting, simple rotate the splice plate again and can let the splice plate reach the position of treating the hookup of closure section roof beam body 11 and installed beam section 22, need not to drag the splice plate repeatedly in step C promptly and fix a position, and need not to hoist the splice plate outside closure section roof beam body 11, can reduce the construction degree of difficulty that closure section roof beam body 11 and installed beam section 22 carried out the splice plate construction in the high altitude, can carry out the work progress raise the efficiency of splice plate at closure section roof beam body 11 and installed beam section 22, reduce construction period and reduce construction safety risk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A quick installation and closure construction method for a splicing plate of a steel beam bolting closure section is characterized by comprising the following steps:
A. according to the design, a web inner side splicing plate (141) is installed on the inner side of a web I (12) of a closure section beam body (11) through a hinge device (7), a web outer side splicing plate (142) is installed on the outer side of the web I (12) through the hinge device (7), a bottom plate upper side splicing plate (151) is installed on the upper side of a bottom plate I (13) of the closure section beam body (11) through the hinge device (7), and a bottom plate lower side splicing plate (152) is installed on the lower side of the bottom plate I (13) through the hinge device (7);
temporarily fixing the web plate inner side splicing plate (141) in the closure section beam body (11) through a first fixing piece, and temporarily fixing the bottom plate upper side splicing plate (151) in the end face of the closure section beam body (11) through a second fixing piece;
B. hoisting the closure section beam body (11) to a specified position for closure construction with the installed beam section (22);
C. removing the second fixing piece, and rotating the bottom plate lower side splicing plate (152) to the bottom plate lower side splicing plate (152) and the bottom plate upper side splicing plate (151) to clamp the bottom plate I (13) and the bottom plate II (221) of the installed beam section (22) and fix the bottom plate I and the bottom plate II through bolts; and removing the first fixing piece, rotating the web plate inner side splicing plate (141) to the web plate inner side splicing plate (141) and the web plate outer side splicing plate (142) to clamp the web plate I (12) and the web plate II (222) of the installed beam section (22) and fixing the web plate I and the web plate II through bolts, and completing closure construction of the steel beam bolt joint section.
2. The steel beam bolting splice quick installation closure construction method according to claim 1, wherein said step a comprises the steps of:
a1, respectively positioning and installing the web inner side splicing plate (141) on the inner side of the web I (12), positioning and installing the web outer side splicing plate (142) on the outer side of the web I (12) by adopting positioning pieces according to design, and then installing the corresponding hinge devices (7); according to the design, positioning pieces are adopted to respectively position and install the splicing plates (151) on the upper side of the first bottom plate (13), position and install the splicing plates (152) on the lower side of the first bottom plate (13), and then the corresponding hinge devices (7) are installed;
a2, removing all the positioning pieces, then respectively rotating the web plate inner side splicing plate (141) and the bottom plate upper side splicing plate (151) towards the closure section beam body (11), and then temporarily fixing the web plate inner side splicing plate (141) through a first fixing piece and temporarily fixing the bottom plate upper side splicing plate (151) through a second fixing piece.
3. The steel beam bolting and splicing section quick installation and closure construction method according to claim 2, wherein in said step A2, said first fixing member comprises a bolt, and said second fixing member comprises a lifting mechanism (9); the step A2 comprises the following steps:
a21, removing a positioning piece installed on the first web plate (12), then rotating the web plate inner side splicing plate (141) to the inside of the closed section beam body (11) and tightly attaching to the inner side of the first web plate (12), rotating the web plate outer side splicing plate (142) to the outside of the closed section beam body (11) and tightly attaching to the outer side of the first web plate (12), and then fixing through the first fixing piece;
a22, removing the positioning piece installed on the first bottom plate (13), and then rotatably lifting the splicing plate (151) on the upper side of the bottom plate to one end, used for connecting the installed beam section (22), of the splicing plate to be positioned in the end face of the closure section beam body (11) and keeping the end face by adopting the lifting mechanism (9).
4. The steel beam bolting splice quick installation and closure construction method according to claim 3, wherein in said step A22, further comprising the steps of: and (3) rotating the splicing plate (152) at the lower side of the bottom plate towards the direction far away from the first bottom plate (13) by 5-25 degrees, and fixing the splicing plate on the first bottom plate (13) by adopting a first long bolt (81).
5. The steel beam bolting splice quick installation closure construction method according to claim 4, wherein said step C comprises the steps of:
c1: arranging a cushion block (10) on the upper side of the first bottom plate (13), then rotating and descending the splicing plate (151) on the upper side of the bottom plate to be in contact with the cushion block (10) through the lifting mechanism (9), then temporarily connecting the splicing plate (151) on the upper side of the bottom plate and the splicing plate (152) on the lower side of the bottom plate through a second long bolt (82), then dismantling the first long bolt (81), then removing the cushion block (10), and then screwing down the second long bolt (82) to enable the splicing plate (152) on the lower side of the bottom plate and the splicing plate (151) on the upper side of the bottom plate to clamp the first bottom plate (13) and the second bottom plate (221) and fix the splicing plate through bolts;
c2: and removing the corresponding first fixing pieces, and respectively rotating the web plate inner side splicing plate (141) and the web plate outer side splicing plate (142) to the outside of the end face of the closure section beam body (11) until the web plate inner side splicing plate (141) and the web plate outer side splicing plate (142) clamp the web plate I (12) and the web plate II (222) and fix the web plate I and the web plate II through bolts, so that closure construction of the steel beam bolted closure section is completed.
6. The steel beam bolting and splicing section quick installation and closure construction method according to claim 4, wherein a nut of said first long bolt (81) is located on an upper side of said first bottom plate (13).
7. The steel beam bolting splice quick installation closure construction method according to claim 2, wherein said positioning members comprise positioning bolts (6) and punching nails (5).
8. The steel beam bolting and splicing section quick installation and closure construction method according to any one of claims 1-7, wherein the hinge device (7) comprises a shaft (2) and a sleeve (1) sleeved on the shaft (2), and two ends of the shaft (2) are respectively provided with a limiting structure for limiting the sleeve (1) to move axially.
9. The steel beam bolting-closure section splice plate rapid installation closure construction method according to claim 8, wherein said shaft (2) is a pin shaft, said pin shaft is provided with a pin hole (3), said pin hole (3) is matched with a cotter pin to limit said sleeve (1), said pin shaft is sleeved with two said sleeves (1); one sleeve (1) is fixedly connected with a web plate I (12) of a closure section beam body (11), and the other sleeve (1) is fixedly connected with the web plate inner side splicing plate (141) or the web plate outer side splicing plate (142); or one of the sleeves (1) is fixedly connected with the first bottom plate (13) of the closure section beam body (11), and the other sleeve (1) is fixedly connected with the splicing plate (152) on the lower side of the bottom plate or the splicing plate (151) on the upper side of the bottom plate.
10. The steel beam bolting splice quick installation closure construction method according to claim 8, wherein the inner diameter of said sleeve (1) is 1-3mm larger than the diameter of said shaft (2).
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| CN202011302623.6A CN112663498B (en) | 2020-11-19 | 2020-11-19 | Quick installation and closure construction method for splicing plates of steel beam bolting closure section |
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| CN202011302623.6A CN112663498B (en) | 2020-11-19 | 2020-11-19 | Quick installation and closure construction method for splicing plates of steel beam bolting closure section |
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Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3021137A1 (en) * | 1980-06-04 | 1982-01-07 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg | Multi span railway bridge expansion hinge joint - has bottom scissors arm pair allowing vertical bolts and plates |
| JPH06240752A (en) * | 1993-02-10 | 1994-08-30 | Fujita Corp | Beam member fitting method and beam member |
| KR20040057124A (en) * | 2002-12-24 | 2004-07-02 | 주식회사 포스코 | A joint for steel beam |
| JP2005350970A (en) * | 2004-06-10 | 2005-12-22 | Toshiba Plant Systems & Services Corp | Jig for steel frame connection and connection method of steel frame by making use thereof |
| CN201354483Y (en) * | 2008-12-19 | 2009-12-02 | 中国二十冶建设有限公司 | Connecting clamper of industrial factory building pillar and roofing beam |
| KR101349649B1 (en) * | 2012-11-22 | 2014-01-09 | 주식회사 액트파트너 | Composite structure of bulit-up steel-girder with reinforced end unit |
| JP2014084597A (en) * | 2012-10-22 | 2014-05-12 | Eagle Kuranpu Kk | Splice plate retainer |
| CN203795605U (en) * | 2013-12-31 | 2014-08-27 | 中建钢构有限公司 | Connecting device for truss rods |
| CN104047433A (en) * | 2014-06-20 | 2014-09-17 | 中建五局第三建设有限公司 | Method for installing structural steel beam in steel structure work |
| CN104234206A (en) * | 2014-08-27 | 2014-12-24 | 浙江精工钢结构集团有限公司 | Disassembly-free connecting plate device for steel structure steel beam |
| CN204662672U (en) * | 2015-04-14 | 2015-09-23 | 中建一局钢结构工程有限公司 | A kind of foldable girder steel junction plate and girder steel |
| CN205421961U (en) * | 2016-03-29 | 2016-08-03 | 浙江中南建设集团钢结构有限公司 | A can change movable clamp plate for steel beam mounting |
| CN105952004A (en) * | 2016-06-30 | 2016-09-21 | 浙江东南网架股份有限公司 | Device easy for mounting of connecting plate and assembling method of device |
| CN207032658U (en) * | 2017-07-14 | 2018-02-23 | 中国建筑第二工程局有限公司 | Large Steel beam bolt double plate Modularized installing structure |
| CN107939035A (en) * | 2017-11-20 | 2018-04-20 | 北京崇建工程有限公司 | The method that attached lifting scaffold and attached lifting scaffold pass through tower crane attachment |
| CN108060782A (en) * | 2017-10-31 | 2018-05-22 | 中建钢构有限公司 | The installation method and auxiliary mounting tool of girder steel element |
| CN108086485A (en) * | 2017-11-03 | 2018-05-29 | 中建钢构有限公司 | A kind of steel construction large-sized bolt gusset plate installation closing device and installation method |
| CN208830472U (en) * | 2018-09-03 | 2019-05-07 | 浙江东南网架股份有限公司 | A kind of girder steel loose-leaf installation node |
| CN110306444A (en) * | 2019-08-06 | 2019-10-08 | 中交路桥华南工程有限公司 | Midspan closing section constructing method |
| CN110541476A (en) * | 2019-08-01 | 2019-12-06 | 中国华冶科工集团有限公司 | steel beam butt joint method and steel clamping plate for steel beam butt joint |
| CN111218986A (en) * | 2020-02-29 | 2020-06-02 | 中国建筑第六工程局有限公司 | Fixing structure and mounting method for steel beam and connecting lug plate |
| CN211690763U (en) * | 2019-11-27 | 2020-10-16 | 广东精工钢结构有限公司 | Steel beam connecting plate pre-installation structure |
| CN211736044U (en) * | 2020-01-06 | 2020-10-23 | 中国建筑第八工程局有限公司 | Rotary push-pull system for steel beam mounting connecting plate |
| CN211898913U (en) * | 2019-12-18 | 2020-11-10 | 上海建工七建集团有限公司 | Connecting structure of large steel beam and connecting plate |
-
2020
- 2020-11-19 CN CN202011302623.6A patent/CN112663498B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3021137A1 (en) * | 1980-06-04 | 1982-01-07 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg | Multi span railway bridge expansion hinge joint - has bottom scissors arm pair allowing vertical bolts and plates |
| JPH06240752A (en) * | 1993-02-10 | 1994-08-30 | Fujita Corp | Beam member fitting method and beam member |
| KR20040057124A (en) * | 2002-12-24 | 2004-07-02 | 주식회사 포스코 | A joint for steel beam |
| JP2005350970A (en) * | 2004-06-10 | 2005-12-22 | Toshiba Plant Systems & Services Corp | Jig for steel frame connection and connection method of steel frame by making use thereof |
| CN201354483Y (en) * | 2008-12-19 | 2009-12-02 | 中国二十冶建设有限公司 | Connecting clamper of industrial factory building pillar and roofing beam |
| JP2014084597A (en) * | 2012-10-22 | 2014-05-12 | Eagle Kuranpu Kk | Splice plate retainer |
| KR101349649B1 (en) * | 2012-11-22 | 2014-01-09 | 주식회사 액트파트너 | Composite structure of bulit-up steel-girder with reinforced end unit |
| CN203795605U (en) * | 2013-12-31 | 2014-08-27 | 中建钢构有限公司 | Connecting device for truss rods |
| CN104047433A (en) * | 2014-06-20 | 2014-09-17 | 中建五局第三建设有限公司 | Method for installing structural steel beam in steel structure work |
| CN104234206A (en) * | 2014-08-27 | 2014-12-24 | 浙江精工钢结构集团有限公司 | Disassembly-free connecting plate device for steel structure steel beam |
| CN204662672U (en) * | 2015-04-14 | 2015-09-23 | 中建一局钢结构工程有限公司 | A kind of foldable girder steel junction plate and girder steel |
| CN205421961U (en) * | 2016-03-29 | 2016-08-03 | 浙江中南建设集团钢结构有限公司 | A can change movable clamp plate for steel beam mounting |
| CN105952004A (en) * | 2016-06-30 | 2016-09-21 | 浙江东南网架股份有限公司 | Device easy for mounting of connecting plate and assembling method of device |
| CN207032658U (en) * | 2017-07-14 | 2018-02-23 | 中国建筑第二工程局有限公司 | Large Steel beam bolt double plate Modularized installing structure |
| CN108060782A (en) * | 2017-10-31 | 2018-05-22 | 中建钢构有限公司 | The installation method and auxiliary mounting tool of girder steel element |
| CN108086485A (en) * | 2017-11-03 | 2018-05-29 | 中建钢构有限公司 | A kind of steel construction large-sized bolt gusset plate installation closing device and installation method |
| CN107939035A (en) * | 2017-11-20 | 2018-04-20 | 北京崇建工程有限公司 | The method that attached lifting scaffold and attached lifting scaffold pass through tower crane attachment |
| CN208830472U (en) * | 2018-09-03 | 2019-05-07 | 浙江东南网架股份有限公司 | A kind of girder steel loose-leaf installation node |
| CN110541476A (en) * | 2019-08-01 | 2019-12-06 | 中国华冶科工集团有限公司 | steel beam butt joint method and steel clamping plate for steel beam butt joint |
| CN110306444A (en) * | 2019-08-06 | 2019-10-08 | 中交路桥华南工程有限公司 | Midspan closing section constructing method |
| CN211690763U (en) * | 2019-11-27 | 2020-10-16 | 广东精工钢结构有限公司 | Steel beam connecting plate pre-installation structure |
| CN211898913U (en) * | 2019-12-18 | 2020-11-10 | 上海建工七建集团有限公司 | Connecting structure of large steel beam and connecting plate |
| CN211736044U (en) * | 2020-01-06 | 2020-10-23 | 中国建筑第八工程局有限公司 | Rotary push-pull system for steel beam mounting connecting plate |
| CN111218986A (en) * | 2020-02-29 | 2020-06-02 | 中国建筑第六工程局有限公司 | Fixing structure and mounting method for steel beam and connecting lug plate |
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| CN112663498B (en) | 2022-05-17 |
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