CN112338383A - Auxiliary welding device and welding method for upper section and lower section of section steel stiffened column - Google Patents
Auxiliary welding device and welding method for upper section and lower section of section steel stiffened column Download PDFInfo
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- CN112338383A CN112338383A CN202011319401.5A CN202011319401A CN112338383A CN 112338383 A CN112338383 A CN 112338383A CN 202011319401 A CN202011319401 A CN 202011319401A CN 112338383 A CN112338383 A CN 112338383A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 145
- 239000010959 steel Substances 0.000 title claims abstract description 145
- 238000003466 welding Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims description 18
- 238000013461 design Methods 0.000 claims description 5
- 238000009966 trimming Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 8
- 239000004567 concrete Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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Abstract
The invention discloses an auxiliary welding device and a welding method for an upper section and a lower section of a section steel stiff column, wherein the auxiliary welding device comprises a connecting part and a fine adjustment part which are matched and arranged on the outer side surfaces of flange plates of the upper section steel stiff column and the lower section steel stiff column; the connecting lug plates of the connecting parts are vertically aligned with the flange plates arranged on the upper sections and the lower sections of the section steel stiff columns, and the screw rods penetrate through the connecting holes of the connecting lug plates and are fixed by the connecting nuts; the fine adjustment part comprises fine adjustment ear plates and a moving mechanism, the fine adjustment ear plates are vertically aligned with flange plates arranged on the upper section and the lower section of the steel stiffening column, and the moving mechanism is vertically arranged between the fine adjustment ear plates; and the moving mechanism jacks up to enable the upper section steel stiff column and the lower section steel stiff column to move relatively so as to adjust the size of the groove weld corresponding to the flange plate. The auxiliary welding device and the welding method for the upper section and the lower section of the section steel stiff column provided by the invention are reasonable in structure, reliable in fixation and capable of effectively ensuring the welding quality of the upper section and the lower section of the section steel stiff column.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and relates to an auxiliary welding device and a welding method for upper and lower sections of a section steel stiffened column.
Background
The structural member material of the steel reinforced concrete structure is composed of a steel reinforced column, a steel plate shear wall, a steel section conversion beam, concrete, longitudinal stressed steel bars and stirrups. The combination mode is that the inner structure of the section steel is used as a supporting stress framework, studs are welded on the outer surface of the section steel, and after reinforcing steel bars are bound and concrete is poured, a tightly combined structural whole is formed. The section steel stiffened concrete structure has the advantages of high strength, small size of the section of a member, strong bond force with concrete, space saving, cost reduction, engineering quality improvement, remarkable improvement on the seismic performance of the structure and the like, and is widely applied to super high-rise buildings with seismic requirements at present.
The section steel stiffened concrete structure is generally arranged at a core barrel part of a single building and penetrates all the way to the top of the structure in order to meet the requirement of earthquake-resistant design. And considering the hoisting condition of steel structure construction on site, and carrying out sectional processing hoisting and section-by-section assembling and welding on the section-by-section steel strength column so as to meet the requirements of mechanical hoisting and step-by-step layered construction of a main structure.
The mounting precision of the upper section and the lower section of the steel reinforced column during assembly directly influences the quality and the safety of the upper building structure. The common temporary fixed connection method is to weld the positioning lug plates vertically on the steel web plates of the upper and lower section steel strength columns, connect the upper and lower section steel strength columns together, and then weld the groove weld. Once the connection lug plates are welded, the method cannot adjust the installation precision of the upper and lower section steel strength columns, and can generate larger welding stress and even welding deformation at the positions of the welding lug plates, thereby causing adverse effects on the stability and safety of the whole structure.
Therefore, it is necessary to design an auxiliary welding device and a welding method for the upper and lower sections of a steel-reinforced column to solve the technical problems in the prior art.
Disclosure of Invention
The invention aims to solve at least some technical problems in the prior art to a certain extent, and provides the auxiliary welding device and the welding method for the upper section and the lower section of the section steel stiff column, which have reasonable structure and reliable fixation, avoid the problem of thermal deformation of a steel column flange plate and a web plate caused by welding and cutting, and ensure the welding precision of the upper section and the lower section of the section steel stiff column; in addition, the fine adjustment part and the welding line detection part are arranged, the size of a groove welding line is effectively guaranteed, the welding quality of the steel reinforced column is guaranteed, and the device can be recycled for multiple times, so that the construction cost of the building engineering is favorably controlled.
In order to solve the technical problems, the auxiliary welding device for the upper section and the lower section of the section steel stiff column comprises a connecting part, a fine adjustment part, a welding seam detection part and a control part, wherein the connecting part and the adjustment part are arranged on the outer side surfaces of flange plates of the upper section steel stiff column and the lower section steel stiff column in a matched mode; the connecting part comprises connecting lug plates, screw rods and connecting nuts, the connecting lug plates are vertically aligned with flange plates arranged on the upper sections and the lower sections of the steel stiffness columns, and the screw rods penetrate through connecting holes of the connecting lug plates and are fixed by the connecting nuts; the fine adjustment part comprises fine adjustment ear plates and a moving mechanism, the fine adjustment ear plates are vertically aligned with flange plates arranged on the upper section and the lower section of the steel stiffening column, and the moving mechanism is vertically arranged between the fine adjustment ear plates; the moving mechanism jacks to enable the upper section steel stiff column and the lower section steel stiff column to move relatively so as to adjust the size of the groove weld corresponding to the flange plate; the weld detecting part is arranged towards the groove weld corresponding to the flange plate to detect the groove weld information; the welding seam detection part is connected with the control part, and the control part controls the movement amount of the moving mechanism according to the detection data so as to adjust the size of the groove welding seam.
In a preferred embodiment, the bottom surfaces of the connecting ear plate and the fine tuning ear plate of the steel section stiffening column are positioned on the same horizontal plane, and the flatness of the connecting ear plate and the fine tuning ear plate is not more than 0.1 mm.
As a preferred embodiment, the moving mechanism is a jack, a base of the moving mechanism is arranged on the fine adjustment ear plate of the lower section steel stiff column, and a mandril of the moving mechanism is connected with the fine adjustment ear plate of the upper section steel stiff column.
In a preferred embodiment, the connecting lug plate and the fine tuning lug plate are vertically welded to the flange plate of the steel section stiffness column, and the perpendicularity of the connecting lug plate and the fine tuning lug plate is not more than 0.08 mm.
In a preferred embodiment, the weld detecting part is connected to the connecting lug plate or the fine-tuning lug plate of the lower section type steel stiff column through an L-shaped bracket.
As a preferred embodiment, the weld detecting part is at least one angle-adjustable camera or a plurality of cameras arranged in different directions, so as to acquire data of the groove weld through images.
As a preferred embodiment, the camera can horizontally rotate 180 ° to collect groove weld data between the upper section steel stiff column and the lower section steel stiff column.
In a preferred embodiment, the moving mechanism is a servo motor, the servo motor is fixed on the fine tuning ear plate of the lower section steel stiff column, an output shaft of the servo motor is connected with a lead screw, and the lead screw is connected with the fine tuning ear plate of the upper section steel stiff column through a lead screw nut.
In addition, the invention also discloses a method for welding the upper section and the lower section of the section steel stiffened column, which uses the auxiliary welding device to temporarily fix and adjust the size of the groove weld and comprises the following steps:
s1, hoisting the upper section steel stiffened column to the lower section steel stiffened column, aligning groove welding seams of the steel web plates and the flange plates, and aligning the connecting lug plate and the fine-tuning lug plate of each side flange plate up and down;
s2, inserting the connecting lug plates aligned up and down on each side into the screw and the connecting nut;
s3, screwing the connecting nut on the upper layer of the connecting lug plate of the upper section steel stiffening column flange plate into the screw rod, simultaneously screwing the connecting nut on the lower layer of the connecting lug plate of the lower section steel stiffening column flange plate into the screw rod, reserving adjusting allowance for the connecting nut, rechecking the perpendicularity of temporary fixed connection of the upper section steel stiffening column and the lower section steel stiffening column and the fitting degree of the crevasse welding line, and carrying out micro adjustment by moving the position of the screw rod;
s4, under the premise that the hoisting equipment is not unloaded, a moving mechanism is placed on the fine adjustment lug plate of the lower section steel stiffness column flange plate, the upper section steel stiffness column is lifted in four directions simultaneously, groove weld information is detected through a weld detection part, the lifting is stopped after the lifting distance meets the weld requirement, then fine adjustment is carried out through the moving mechanism, and the consistent weld widths of the steel web plate and the flange plate and the horizontal non-inclination positions are ensured;
s5, after the fixed connection precision of the upper section steel stiffness column and the lower section steel stiffness column is adjusted, tightening each connecting nut, removing the lifting rope and the jack, and performing welding work of a groove weld;
and S6, after welding is completed and the welding strength meets the design requirement, the high-strength screw rod and the connecting nut are disassembled, and after no mechanical damage is detected, the high-strength screw rod and the connecting nut are circularly used for temporary fixed connection before the upper section and the lower section of the steel stiffness column are welded.
As a preferred embodiment, the error of the groove weld is not more than 0.3 mm.
The invention has the beneficial effects that:
the auxiliary welding device and the welding method for the upper section and the lower section of the section steel stiff column provided by the invention have the advantages that the structure is reasonable, the fixation is reliable, the problem of thermal deformation of a steel column flange plate and a web plate caused by welding and cutting is avoided, and the welding precision of the upper section and the lower section of the section steel stiff column is ensured; in addition, the fine adjustment part and the welding line detection part are arranged, the size of a groove welding line is effectively guaranteed, the welding quality of the steel reinforced column is guaranteed, and the device can be recycled for multiple times, so that the construction cost of the building engineering is favorably controlled.
Drawings
The above advantages of the present invention will become more apparent and more readily appreciated from the detailed description set forth below when taken in conjunction with the drawings, which are intended to be illustrative, not limiting, of the invention and in which:
FIG. 1 is a schematic structural diagram of an auxiliary welding device for upper and lower sections of a section steel stiffened column according to the present invention;
FIG. 2 is a top view of the corresponding auxiliary welding device of FIG. 1;
FIG. 3 is a schematic view of another embodiment of the auxiliary welding device for the upper and lower sections of the steel reinforced column of the present invention;
fig. 4 is a schematic view of a weld detecting portion according to the present invention.
In the drawings, the reference numerals denote the following components:
10. a connecting portion; 11. connecting the ear plates; 12. a screw; 13. a connecting nut; 20. a fine adjustment part; 21. trimming the ear plate; 22. a moving mechanism; 30. a weld detection unit; an L-shaped bracket; 32. a camera; 41. an upper section steel stiff column; 42. lower section type steel strength post.
Detailed Description
Fig. 1 to 4 are related schematic diagrams of an auxiliary welding device and a welding method for an upper section and a lower section of a section steel stiffened column according to the present application, and the present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
The invention discloses a structural schematic diagram of an auxiliary welding device for upper and lower sections of a section steel stiffened column, which is shown in figures 1 to 2. The auxiliary welding device for the upper section and the lower section of the section steel stiffened column comprises a connecting part 10 and a fine adjustment part 20, which are arranged on the outer side surfaces of the flange plates of the upper section steel stiffened column 41 and the lower section steel stiffened column 42 in a matching manner; the connecting part 10 comprises connecting lug plates 11, screw rods 12 and connecting nuts 13, the connecting lug plates 11 are vertically aligned with flange plates arranged on the upper and lower sections of the steel stiffness column, and the screw rods 12 penetrate through connecting holes of the connecting lug plates 11 and are fixed by the connecting nuts 13; the fine adjustment part 20 comprises fine adjustment ear plates 21 and a moving mechanism 22, the fine adjustment ear plates 21 are vertically aligned with flange plates arranged on the upper and lower sections of the steel stiffness column, and the moving mechanism 22 is vertically arranged between the fine adjustment ear plates 21; the moving mechanism 22 is lifted up to enable the upper section steel stiff column 41 and the lower section steel stiff column 42 to move relatively so as to adjust the size of the groove weld corresponding to the flange plate.
As an embodiment of the present invention, the attachment lug 11 and the trimming lug 21 are made of steel plate, such as stainless steel 304. In order to increase the flexibility of adjustment of the threaded rod 12, the connecting hole of the connecting lug plate 11 is an elliptical hole, and the size of the connecting hole is slightly larger than the outer diameter of the threaded rod 12. In order to ensure the reliability of the connection, the screw 12 is a high-strength screw.
As another embodiment of the present invention, the bottom surfaces of the connecting ear plate 11 and the fine tuning ear plate 21 of the steel reinforced column are located on the same horizontal plane, and the flatness of the two is not greater than 0.1 mm. The connecting lug plate 11 and the fine-tuning lug plate 21 are vertically welded on a flange plate of the steel stiffness column, and the verticality of the flange plate is not more than 0.08 mm.
In order to ensure the welding strength between the connection lug plate 11 and the fine adjustment lug plate 21, a pair of reinforcing ribs are provided between the connection lug plate 11 and the flange plate, and a reinforcing rib is also provided between the fine adjustment lug plate 21 and the flange plate.
In the embodiment shown in fig. 1, the moving mechanism 22 is a jack, a base of the moving mechanism is disposed on the fine tuning ear plate 21 of the lower section steel rigid column, and a top rod of the moving mechanism 22 is connected with the fine tuning ear plate 21 of the upper section steel rigid column.
As a variation of this embodiment, the moving mechanism 22 is a servo motor, the servo motor is fixed to the fine tuning ear plate 21 of the lower section steel stiff column, an output shaft of the servo motor is connected with a lead screw, and the lead screw is connected with the fine tuning ear plate 21 of the upper section steel stiff column through a lead screw nut. The servo motor has good controllability, and the servo motor can be combined with the lead screw to accurately adjust the movement amount and precisely adjust the size of the groove weld.
Fig. 3 is a schematic view of another embodiment of the auxiliary welding device for the upper and lower sections of the steel reinforced column according to the present invention, the auxiliary welding device further includes a weld detection portion 30 and a control portion, the weld detection portion 30 is disposed toward a groove weld corresponding to the flange plate to detect groove weld information; the weld detecting section 30 is connected to a control section that controls the amount of movement of the moving mechanism 22 based on the detection data to adjust the size of the groove weld.
The weld detecting portions 30 are shown in fig. 3 only on one side of the flange plate of the steel section stiffening column, it being understood that the weld detecting portions 30 need to be provided on each side of the flange plate of the steel section stiffening column.
Fig. 4 is a schematic view of the weld detecting part 30 according to the present invention, which is connected to the connecting lug 11 or the trimming lug 21 of the lower-section type steel stiffening column by means of an L-shaped bracket 31.
In one aspect of the present embodiment, the weld detecting part 30 is at least one angle-adjustable camera 32 or a plurality of cameras 32 arranged in different directions to acquire the data of the groove weld through images. Specifically, the camera 32 may be a CCD image acquisition instrument or the like, which has a certain acquisition precision and meets the requirement of weld size detection.
As another aspect of this embodiment, the camera 32 can horizontally rotate 180 ° to collect groove weld data between the upper section steel stiff column and the lower section steel stiff column. The field of view of the camera 32 can be changed, so that the field of view completely covers the groove weld between the upper section steel stiff column and the lower section steel stiff column, and the size of the groove weld is completely collected.
The control part stores a target weld size Lm in advance, the weld detection part 30 monitors the size in real time to be Li, and when the absolute value of the difference value between the Lm and the Li is within the error range of the weld, the adjustment of the groove weld size is finished. The error of the groove weld is not more than 0.3mm, and the error needs to be input into a storage module of the control part in advance so that the control part can judge the adjustment condition of the weld. In some embodiments, the weld error is 0.2 mm.
In addition, the invention also discloses a method for welding the upper section and the lower section of the section steel stiffened column, which uses the auxiliary welding device to temporarily fix and adjust the size of the groove weld and comprises the following steps:
and S1, hoisting the upper section steel stiffened column to the lower section steel stiffened column, aligning groove welding seams of the steel web plate and the flange plates, and aligning the connecting lug plate 11 and the fine-tuning lug plate 21 of each side flange plate up and down.
S2, the lug plate 11 of aligning about will every side penetrates screw rod 12, when penetrating screw rod 12, after passing the lug plate 11 of a coupling nut 13 and lower section type steel strength type post flange board from bottom to top earlier, penetrates two coupling nuts 13, penetrates screw rod 12 again the lug plate 11 of upper section type steel strength type post flange board, guarantees that the upper strata and the lower floor of coupling lug plate 11 all are provided with coupling nut 13 promptly.
And S3, screwing the connecting nuts 13 on the upper layers of the connecting lug plates 11 of the flange plates of the upper section steel stiff columns into the screws 12, rechecking the perpendicularity of the temporary fixed connection of the upper section steel stiff columns and the fitting degree of the crevasse welding seams, and carrying out fine adjustment by moving the positions of the screws 12.
S4, on the premise that the hoisting equipment is not unloaded, placing a moving mechanism 22 on the fine adjustment lug plate 21 of the flange plate on each side of the lower section steel stiff column, jacking in four directions simultaneously to lift the upper section steel stiff column, detecting the information of the groove weld through a weld detection part 30, stopping jacking after the lifting distance meets the requirement of the weld, and then performing fine adjustment through the moving mechanism 22 to ensure that the widths of the weld of the steel web plate and the flange plate are consistent and the positions of the weld are not inclined horizontally.
And S5, after the fixed connection precision of the upper section steel stiffness column and the lower section steel stiffness column is adjusted, screwing down each connecting nut 13, detaching the lifting rope and the moving mechanism 22, and performing the welding operation of the groove weld.
And S6, after welding is completed and the welding strength meets the design requirement, disassembling the screw 12 and the connecting nut 13, checking that no mechanical damage exists, and circularly using the screws for temporarily fixing the upper section and the lower section of the steel stiffness column before welding.
In the construction process, instruments are adopted for measurement and control for many times, so that the construction and installation efficiency and the construction precision are greatly improved, and the accuracy of the horizontal position and the vertical position of the installation of the upper section type steel stiffened column and the lower section type steel stiffened column is ensured.
Compared with the defects and shortcomings of the prior art, the auxiliary welding device and the welding method for the upper section and the lower section of the section steel stiff column provided by the invention are reasonable in structure and reliable in fixation, the problem of thermal deformation of a steel column flange plate and a web plate caused by welding and cutting is avoided, and the welding precision of the upper section and the lower section of the section steel stiff column is ensured; in addition, the fine adjustment part and the welding line detection part are arranged, the size of a groove welding line is effectively guaranteed, the welding quality of the steel reinforced column is guaranteed, and the device can be recycled for multiple times, so that the construction cost of the building engineering is favorably controlled.
The present invention is not limited to the above embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which are the same as or similar to the technical solutions of the present invention, fall within the protection scope of the present invention. .
Claims (10)
1. The auxiliary welding device for the upper section and the lower section of the section steel stiffened column is characterized by comprising a connecting part, a fine adjustment part, a welding seam detection part and a control part, wherein the connecting part and the adjustment part are arranged on the outer side surfaces of flange plates of the upper section steel stiffened column and the lower section steel stiffened column in a matching manner; the connecting part comprises connecting lug plates, screw rods and connecting nuts, the connecting lug plates are vertically aligned with flange plates arranged on the upper sections and the lower sections of the steel stiffness columns, and the screw rods penetrate through connecting holes of the connecting lug plates and are fixed by the connecting nuts; the fine adjustment part comprises fine adjustment ear plates and a moving mechanism, the fine adjustment ear plates are vertically aligned with flange plates arranged on the upper section and the lower section of the steel stiffening column, and the moving mechanism is vertically arranged between the fine adjustment ear plates; the moving mechanism jacks to enable the upper section steel stiff column and the lower section steel stiff column to move relatively so as to adjust the size of the groove weld corresponding to the flange plate; the weld detecting part is arranged towards the groove weld corresponding to the flange plate to detect the groove weld information; the welding seam detection part is connected with the control part, and the control part controls the movement amount of the moving mechanism according to the detection data so as to adjust the size of the groove welding seam.
2. The auxiliary welding device as claimed in claim 1, wherein the connecting ear plate and the fine tuning ear plate of the steel section stiffening column have bottom surfaces on the same horizontal plane, and the flatness of the connecting ear plate and the fine tuning ear plate is not more than 0.1 mm.
3. The auxiliary welding device of claim 1, wherein the moving mechanism is a jack, a base of the jack is arranged on the fine tuning ear plate of the lower section steel stiffness column, and a top rod of the moving mechanism is connected with the fine tuning ear plate of the upper section steel stiffness column.
4. The auxiliary welding device as claimed in claim 1, wherein the connecting lug plate and the fine tuning lug plate are vertically welded to the flange plate of the steel section stiffness column, and the verticality is not more than 0.08 mm.
5. The auxiliary welding device according to claim 1, wherein the weld detecting portion is connected to a connection lug or a trimming lug of the lower section type steel stiff column through an L-shaped bracket.
6. The auxiliary welding device according to claim 1, wherein the weld detecting part is at least one angle-adjustable camera or a plurality of cameras arranged in different directions so as to acquire data of the groove weld through images.
7. The auxiliary welding device of claim 6, wherein the camera is capable of rotating horizontally 180 ° to collect groove weld data between an upper section steel stiff column and a lower section steel stiff column.
8. The auxiliary welding device of claim 1, wherein the moving mechanism is a servo motor fixed to the fine tuning ear plate of the lower section steel stiffness column, and an output shaft of the servo motor is connected with a lead screw connected with the fine tuning ear plate of the upper section steel stiffness column through a lead screw nut.
9. A method for welding an upper section and a lower section of a section steel stiffened column is characterized in that the auxiliary welding device of any one of claims 1 to 8 is used for temporarily fixing and adjusting the size of a groove weld, and the method comprises the following steps:
s1, hoisting the upper section steel stiffened column to the lower section steel stiffened column, aligning groove welding seams of the steel web plates and the flange plates, and aligning the connecting lug plate and the fine-tuning lug plate of each side flange plate up and down;
s2, inserting the connecting lug plates aligned up and down on each side into the screw and the connecting nut;
s3, screwing the connecting nut on the upper layer of the connecting lug plate of the upper section steel stiffening column flange plate into the screw rod, simultaneously screwing the connecting nut on the lower layer of the connecting lug plate of the lower section steel stiffening column flange plate into the screw rod, reserving adjusting allowance for the connecting nut, rechecking the perpendicularity of temporary fixed connection of the upper section steel stiffening column and the lower section steel stiffening column and the fitting degree of the crevasse welding line, and carrying out micro adjustment by moving the position of the screw rod;
s4, under the premise that the hoisting equipment is not unloaded, a moving mechanism is placed on the fine adjustment lug plate of each side flange plate of the lower section steel stiff column and is lifted in four directions simultaneously, the upper section steel stiff column is lifted, groove weld information is detected through a weld detection part, the lifting is stopped after the lifting distance meets the weld requirement, then fine adjustment is carried out through the moving mechanism, and the consistent width of the weld of the steel web plate and the flange plate and the horizontal non-inclination position are ensured;
s5, after the fixed connection precision of the upper section steel stiffness column and the lower section steel stiffness column is adjusted, tightening each connecting nut, removing the lifting rope and the jack, and performing welding work of a groove weld;
and S6, after welding is completed and the welding strength meets the design requirement, the high-strength screw rod and the connecting nut are disassembled, and after no mechanical damage is detected, the high-strength screw rod and the connecting nut are circularly used for temporary fixed connection before the upper section and the lower section of the steel stiffness column are welded.
10. The method for welding the upper and lower sections of a steel stiffness column according to claim 9, wherein the error of the groove weld is not greater than 0.3 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011319401.5A CN112338383A (en) | 2020-11-23 | 2020-11-23 | Auxiliary welding device and welding method for upper section and lower section of section steel stiffened column |
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| CN202011319401.5A CN112338383A (en) | 2020-11-23 | 2020-11-23 | Auxiliary welding device and welding method for upper section and lower section of section steel stiffened column |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319721A (en) * | 2022-01-17 | 2022-04-12 | 华神建设集团有限公司 | Large-section stiff concrete column and construction method thereof |
| CN114541784A (en) * | 2022-03-23 | 2022-05-27 | 中建八局第三建设有限公司 | Automatic correction device and method for butt joint of steel structure and steel column |
| CN114753511A (en) * | 2022-04-29 | 2022-07-15 | 上海泰大建筑科技有限公司 | Steel column building site concatenation installation locator |
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| CN110359722A (en) * | 2019-06-28 | 2019-10-22 | 五冶集团上海有限公司 | A kind of steel column correction jacking bracket and its application method |
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| CN114319721A (en) * | 2022-01-17 | 2022-04-12 | 华神建设集团有限公司 | Large-section stiff concrete column and construction method thereof |
| CN114541784A (en) * | 2022-03-23 | 2022-05-27 | 中建八局第三建设有限公司 | Automatic correction device and method for butt joint of steel structure and steel column |
| CN114541784B (en) * | 2022-03-23 | 2024-07-02 | 中建八局第三建设有限公司 | Automatic correction device and method for butt joint of steel columns of steel structure |
| CN114753511A (en) * | 2022-04-29 | 2022-07-15 | 上海泰大建筑科技有限公司 | Steel column building site concatenation installation locator |
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