CN114753652A - Steel structure roof jig frame sliding precision control method - Google Patents
Steel structure roof jig frame sliding precision control method Download PDFInfo
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- CN114753652A CN114753652A CN202210371386.1A CN202210371386A CN114753652A CN 114753652 A CN114753652 A CN 114753652A CN 202210371386 A CN202210371386 A CN 202210371386A CN 114753652 A CN114753652 A CN 114753652A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/163—Jacks specially adapted for working-up building elements
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Abstract
The invention discloses a steel structure roof jig frame sliding precision control method, which comprises the following steps: controlling the precision of a steel structure of a factory building facade system in the manufacturing, transporting and installing links, observing the settlement of a column foundation before and after the steel structure of the factory building facade system is installed, and recording data, wherein the periphery of the column foundation is backfilled in a layered symmetrical backfilling and tamping mode; assembling a jig frame, jacking the jig frame in place, mounting a traveling device on the jig frame, arranging the traveling device on the sliding track, monitoring the deformation of the jig frame body, and confirming that the traveling directions of the traveling devices on the two sides of the jig frame are matched with the arrangement direction of the sliding track; the roof truss assembly is corrected by utilizing a three-dimensional scanning technology, the roof truss is assembled through bolt fixing, after a certain section of roof truss is assembled, the roof truss slides to a designated position, and the roof truss and a side wall upright post bracket are fixed through high-strength bolts and welded at each connecting position on the roof truss. The method has the advantages of quick construction progress and small potential safety hazard, and can realize 100% perforation of the high-strength bolt.
Description
Technical Field
The invention relates to the technical field of steel structure construction, in particular to a steel structure roof jig frame sliding precision control method which can realize accurate butt joint of beam-column nodes and 100% perforation of high-strength bolts.
Background
Steel structures are structures composed of steel materials and are one of the main building structure types. The structure mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, and rust removing and preventing processes such as silanization, pure manganese phosphating, washing drying, galvanization and the like are adopted. The components or parts are typically joined by welds, bolts or rivets. Because of its light dead weight and simple construction, it can be widely used in large-scale factory buildings, venues, super high-rise buildings and other fields. In order to meet the requirements of building design, a large number of steel structural members are adopted, and higher requirements are provided for steel structural installation. Due to the limitation of the installation height of the steel structure, the limitation of the construction site and the limitation of the hoisting weight of the crane, the slippage or the lifting and other construction schemes can be considered at the moment. Such as: bao steel non-oriented silicon steel product structure optimization engineering 4 district steel construction factory building span reaches 42 meters, length reaches 435 meters, it can't adopt the crane to stride interior installation in the factory building promptly to ann has the equipment foundation in its factory building, simultaneously its factory building outside still design has electric room and auxiliary room etc. if use the crane to stride outer installation, it is higher to the jack-up tonnage requirement of crane, construction cost is higher, large-scale crane arranges outside the factory building simultaneously and will block up the interim passageway of construction, more the potential safety hazard of the vertical cross operation between civil engineering and steel construction specialty is very big, still need the construction progress of reasonable coordination roofing steel construction and civil engineering, because the civil engineering can't use the tower crane after the roofing steel construction is accomplished.
For improving the installation progress of steel construction roofing system, the technical staff in the field has developed steel construction roofing technique of sliding, but in actual construction, each link such as processing and the construction of factory building facade system steel construction, basic displacement, the error of sliding, roof truss assembly error inevitably all can bring the error, these links will constantly enlarge the error, finally lead to steel construction roofing can't realize accurate butt joint with steel construction factory building side wall stand centering promptly both, under present technological condition, can't realize at all that steel construction roofing and steel construction factory building side wall stand pass through 100% fenestrate high strength bolt and fix, generally adopt the welded mode to realize fixing between them at present, but its fixed reliability is general, there is great promotion space.
Therefore, the development of the steel structure roof jig frame sliding precision control method for controlling all construction links to finally realize 100% perforation is of great practical significance.
Disclosure of Invention
Due to the defects in the prior art, the invention provides the steel structure roof jig frame sliding precision control method for controlling each construction link and finally realizing 100% perforation, so as to solve the problems that the existing steel structure roof system installation method is poor in precision and cannot realize that the steel structure roof and the steel structure factory building side wall upright post are fixed through the high-strength bolt with 100% perforation.
In order to achieve the above object, the present invention provides the following technical solutions:
a steel structure roof jig frame sliding precision control method comprises the following steps:
(1) controlling the precision of a steel structure of a plant facade system in the manufacturing, transporting and installing links, observing the settlement of a column foundation before and after the steel structure of the plant facade system is installed, and recording data, wherein the periphery of the column foundation is backfilled in a layered symmetrical backfilling and tamping mode, so that the displacement of a plant facade structure caused by the displacement of the foundation is reduced;
(2) assembling a jig frame and jacking the jig frame in place, installing a traveling device on the jig frame and arranging the traveling device on a sliding track, monitoring the deformation of a jig frame body and confirming that the traveling directions of the traveling devices on two sides of the jig frame are matched with the arrangement direction of the sliding track;
(3) correcting assembly of the roof truss by using a three-dimensional scanning technology, fixing and assembling the roof truss through bolts, sliding to a specified position after assembling a certain section of the roof truss, fixing the roof truss and side wall upright post brackets through high-strength bolts, welding each connecting position on the roof truss, and further completing installation and fixation of all the roof trusses;
the whole sliding process of a certain roof truss is divided into a plurality of sliding operation periods, the deviation between the theoretical displacement and the actual displacement of the two sides of the jig frame is checked after a sliding operation period is finished, and the control schemes of the two sides of the jig frame in the lower sliding operation period are adjusted according to the deviation until the whole sliding process is finished;
After the sliding is carried out to the designated position, the adjustment of the vertical deviation can be realized by utilizing a roof truss jacking device arranged on the jig, and the adjustment of the horizontal deviation can be realized by utilizing the chain block and the walking device.
The steel structure roof jig frame sliding precision control method is simple in overall step sequence, various technical means are applied to carry out precision control on the whole process of installation of the steel structure roof truss, the roof truss is preliminarily fixed by using the bolts before sliding, at the moment, the roof truss has a certain adjustment margin, and after sliding in place, deviation can be conveniently adjusted by using auxiliary tools to ensure that the high-strength bolts are perforated by 100%.
As a preferable technical scheme:
the steel structure roof jig frame slippage accuracy control method comprises the following specific steps of (3):
(3.1) acquiring three-dimensional coordinate data of the side wall upright post bracket by adopting a three-dimensional scanning technology, and processing the data;
(3.2) reversely casting the measured three-dimensional coordinates of the side wall upright post corbels to a jig frame for carrying a roof truss, and assembling the roof truss according to the casting point positions, wherein the roof truss is fixedly assembled through bolts;
(3.3) starting the sliding of the jig frame by taking the distance between the adjacent calibration baselines as a single-stage sliding operation period, and checking the deviation between the theoretical displacement and the actual displacement of the two sides of the jig frame after the sliding operation period is finished, wherein the calibration baselines are obtained by respectively and equidistantly dividing a plurality of sliding tracks and correspond to the calibration baselines on different sliding tracks;
(3.4) adjusting the control schemes on the two sides of the jig frame according to the deviation obtained in the step (3.3) and entering the next single-stage sliding operation period;
(3.5) repeating the steps (3.3) and (3.4) until the sliding of the section of steel structure roof truss is completed, fixing the section of steel structure roof truss and the side wall upright post bracket through high-strength bolts, and welding and fixing all connecting parts in the roof truss;
and (3.6) repeating the steps (3.1) - (3.5) until the installation of the whole steel structure roof system is completed.
According to the control method for the sliding precision of the steel structure roof jig frame, in the step (3.2), after the assembly of the roof frame is completed, the three-dimensional scanning technology is adopted to check the roof frame;
the adoption of the three-dimensional scanning technology specifically refers to the application of a laser three-dimensional scanner;
and (4) adjusting the control scheme of the two sides of the jig frame according to the deviation obtained in the step (3.3), specifically, respectively controlling the traveling speeds of the two sides of the jig frame according to the deviation adjustment.
According to the method for controlling the sliding precision of the steel structure roof jig frame, the distance between the adjacent calibration baselines is 15m, the adjacent calibration baselines can be set according to actual requirements, although the sliding synchronism can be improved due to the fact that the distance is too small, the whole operation is more inconvenient, and the consumed time is longer;
the calibration baseline is divided on the sliding track by marking with a label or a marker pen.
According to the method for controlling the sliding precision of the steel structure roof jig frame, when the steel structure of the plant facade system is installed and controlled, the free ends of the columns of the plant side wall are slightly deviated outwards, namely the distance between the columns is slightly larger than the original design, so that the horizontal deviation can be conveniently corrected by using the chain block in the subsequent process, the chain block can be fixed on the columns, one end of the chain block is hooked with the house frame, and the distance between the two can be adjusted by pulling the chain block.
According to the steel structure roof jig frame slippage accuracy control method, the number of the slippage tracks is two;
and (2) after the deformation monitoring of the jig frame body and the confirmation of the walking directions of the walking devices on the two sides of the jig frame are completed, the jig frame is tried to slide so as to ensure that the formal sliding requirement is met.
According to the steel structure roof jig frame slippage accuracy control method, the roof truss jacking device is fixed on the jig frame and comprises a roof truss jacking support and an outer stabilizing frame;
The roof truss jacking support is arranged in the outer stabilizing frame, a roof truss jacking jack is arranged in the roof truss jacking support, the upper end of the roof truss jacking jack is fixedly connected with a roof truss, and the lower end of the roof truss jacking jack is fixed in the roof truss jacking support;
the external stabilizing frame comprises a base frame and two roof truss fixed side frames, the upper end of the base frame is provided with an inserting port matched with the roof truss fixed side frames, the roof truss fixed side frames are inserted into the base frame, and the two roof truss fixed side frames are arranged on two sides of a roof truss beam to limit the roof truss beam.
According to the method for controlling the sliding precision of the steel structure roof jig frame, the whole inserting port is of a C-shaped or a V-shaped structure, and a limiting bolt for fixing the roof frame fixing side frame at the inserting port is arranged on the side of the gap of the C-shaped or V-shaped structure. By adopting the design, compared with the traditional splicing mode, the roof truss fixed side frame can be separated from or fixed to the splicing opening more conveniently, the traditional splicing mode needs to hoist or lift the roof truss fixed side frame, the whole weight of the roof truss fixed side frame is larger, meanwhile, the roof truss fixed side frame is located on a roof truss, mechanical equipment is inconvenient to use, splicing often needs tower crane matching, and the whole is inconvenient.
According to the method for controlling the sliding precision of the steel structure roof jig frame, the roof truss and the bracket side wall upright post bracket are fixed through the high-strength bolt and then welded and reinforced.
The above technical solutions are only one possible technical solution of the present invention, and the protection scope of the present invention is not limited thereto, and those skilled in the art can reasonably adjust the specific design according to the actual needs.
The invention has the following advantages or beneficial effects:
(1) the steel structure roof jig frame sliding precision control method disclosed by the invention has the advantages that various technical means are applied to carry out precision control on the whole process of steel structure roof frame installation;
(2) according to the steel structure roof jig frame slippage accuracy control method, the roof truss is preliminarily fixed by the bolts before slippage, the roof truss has a certain adjustment margin, and after slippage in place, deviation can be conveniently adjusted by using auxiliary tools to ensure 100% perforation of the high-strength bolts;
(3) compared with the prior art, the steel structure roof jig frame sliding precision control method not only greatly improves the installation precision of the steel structure roof truss, but also improves the structural strength of the whole steel structure.
Drawings
The invention and its features, aspects and advantages will become more apparent from the following detailed description of non-limiting embodiments, which is to be read in connection with the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic view of a roof truss jacking apparatus of the present invention in use;
FIG. 2 is a schematic view of a roof truss fixed side frame;
FIG. 3 is a schematic view of a base frame;
FIG. 4 is a schematic view of a roof truss jacking bracket;
the roof truss structure comprises 1-roof truss fixed side frames, 2-base frames, 21-inserting ports, 3-roof truss jacking jacks, 4-roof truss jacking supports and 5-roof truss beams.
Detailed Description
The structure of the present invention will be further described with reference to the drawings and the specific embodiments, but the present invention is not limited thereto.
Example 1
A steel structure roof jig frame sliding precision control method comprises the following steps:
(1) controlling the precision of a factory building facade system steel structure from the manufacturing, transporting and installing links, observing the settlement of a column foundation before and after the factory building facade system steel structure is installed and recording data, backfilling the periphery of the column foundation in a layered symmetrical backfilling and tamping mode, and slightly deviating the free end of a factory building side wall upright column outwards when the factory building facade system steel structure is installed and controlled;
(2) Assembling a jig frame and jacking the jig frame in place, installing a traveling device on the jig frame and arranging the traveling device on a sliding track, monitoring the deformation of a jig frame body and confirming that the traveling directions of the traveling devices on two sides of the jig frame are matched with the arrangement direction of the sliding track, and performing trial sliding on the jig frame to ensure that the formal sliding requirement is met;
(3) utilize three-dimensional scanning technique to rectify the roof truss and assemble, the roof truss is assembled through bolt fastening, accomplishes some section roof truss and assembles the back slippage to the assigned position, through high strength bolts with the roof truss fixed with side wall stand bracket (and weld the enhancement) and to each hookup location welding on the roof truss, and then accomplish the installation of all roof trusses fixed, specifically do:
(3.1) acquiring three-dimensional coordinate data of the side wall upright post bracket by adopting a three-dimensional scanning technology (applying a laser three-dimensional scanner) and processing the data;
(3.2) reversely projecting the three-dimensional coordinates of the measured side wall upright post corbels to a jig frame for carrying a roof truss, assembling the roof truss according to the projected point positions, fixing and assembling the roof truss through bolts at the moment, and checking and inspecting the roof truss by adopting a three-dimensional scanning technology (applying a laser three-dimensional scanner);
(3.3) taking the distance (15m) between the adjacent calibration baselines as a single-stage sliding operation period, starting the sliding of the jig frame, checking the deviation between the theoretical displacement and the actual displacement of the two sides of the jig frame after the sliding operation period is finished, wherein the calibration baselines (which are divided on the sliding tracks in a labeling or marking pen marking mode) are obtained by respectively dividing the two sliding tracks at equal intervals, and the calibration baselines on different sliding tracks correspond to each other;
(3.4) adjusting the control schemes on the two sides of the jig frame according to the deviation obtained in the step (3.3) (respectively controlling the walking speeds on the two sides of the jig frame according to the deviation adjustment), and entering the next single-stage sliding operation period;
(3.5) repeating the steps (3.3) and (3.4) until the sliding of the section of steel structure roof truss is completed, fixing the section of steel structure roof truss and the side wall upright post bracket through high-strength bolts, and welding and fixing all connecting parts in the roof truss;
(3.6) repeating the steps (3.1) - (3.5) until the installation of the whole steel structure roof system is completed;
after sliding to a designated position, the adjustment of vertical deviation can be realized by using a roof truss jacking device which is arranged on the jig and is shown in figure 1, and the adjustment of horizontal deviation can be realized by using a chain block and a walking device;
the roof truss jacking device is fixed on a jig frame and comprises a roof truss jacking bracket 4 and an outer stabilizer frame shown in figure 4;
the roof truss jacking support 4 is arranged in the outer stabilizing frame, a roof truss jacking jack 3 is arranged in the roof truss jacking support 4, the upper end of the roof truss jacking jack 3 is fixedly connected with the roof truss beam 5, and the lower end of the roof truss jacking jack 3 is fixed in the roof truss jacking support 4;
the outer stabilizer comprises a base frame 2 shown in figure 3 and two roof truss fixing side frames 1 shown in figure 2, wherein the base frame 2 is a cubic support, reinforcing rods for reinforcing structures are arranged in the cubic support, the roof truss fixing side frames 1 comprise a first vertical rod, a second vertical rod and a connecting rod, the first vertical rod and the second vertical rod are parallel to each other, the connecting rod is connected with one end of the first vertical rod and one end of the second vertical rod, the first vertical rod is longer than the second vertical rod, the free ends of the first vertical rod and the second vertical rod are flush, the free ends of the first vertical rod and the second vertical rod are inserting ends matched with the inserting ports, a plurality of structural reinforcing rods for reinforcing structures are further arranged between the first vertical rod and the second vertical rod, the plurality of structural reinforcing rods are connected end to form a Z-shaped structure, the first vertical rod and the second vertical rod are square rods, the two roof truss fixing side frames 1 are fixed on the base frame 2 (the upper end of the base frame 2 is provided with the inserting ports 21 matched with the roof truss fixing side frames 1, the roof truss fixing side frames 1 are inserted into the base frames 2 in an inserting mode, the inserting ports 21 are integrally of a C-shaped or 21274L-shaped structure, limiting bolts for fixing the roof truss fixing side frames 1 at the inserting ports are arranged on the side of gaps of the connecting ports), and the two roof truss fixing side frames 1 are arranged on two sides of the roof truss girder 5 (a first vertical rod of each roof truss fixing side frame is closer to the roof truss girder than a second vertical rod) so as to limit the roof truss girder 5.
Through verification, the steel structure roof jig frame sliding precision control method disclosed by the invention applies various technical means to carry out precision control on the whole process of steel structure roof frame installation; the roof truss is preliminarily fixed by using the bolts before sliding, the roof truss has a certain adjustment margin at the moment, and after sliding in place, some auxiliary tools can be conveniently applied to adjust the deviation so as to ensure 100% perforation of the high-strength bolts; compare in prior art, not only greatly improved the installation accuracy of steel construction roof truss, improved the structural strength of whole steel construction moreover, in addition, whole step is simple, and the construction progress is very fast, and the potential safety hazard is little, has application prospect.
It should be understood by those skilled in the art that the above embodiments may be combined with the prior art to realize the modifications, and the detailed description is omitted here. Such variations do not affect the essence of the present invention, and are not described herein.
The above description is that of the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, in which devices and structures not described in detail are understood to be implemented in a manner that is conventional in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention, unless the technical essence of the present invention is not departed from the content of the technical solution of the present invention.
Claims (9)
1. A steel structure roof jig frame sliding precision control method is characterized by comprising the following steps: the method comprises the following steps:
(1) controlling the precision of a steel structure of a plant facade system in the manufacturing, transporting and installing links, observing the settlement of a column foundation before and after the steel structure of the plant facade system is installed, and recording data, wherein the periphery of the column foundation is backfilled in a layered symmetrical backfilling and tamping mode;
(2) assembling a jig frame and jacking the jig frame in place, installing a traveling device on the jig frame and arranging the traveling device on a sliding track, monitoring the deformation of a jig frame body and confirming that the traveling directions of the traveling devices on two sides of the jig frame are matched with the arrangement direction of the sliding track;
(3) correcting assembly of the roof truss by using a three-dimensional scanning technology, fixing and assembling the roof truss through bolts, sliding to a specified position after assembling a certain section of the roof truss, fixing the roof truss and side wall upright post brackets through high-strength bolts, welding each connecting position on the roof truss, and further completing installation and fixation of all the roof trusses;
the whole sliding process of a certain roof truss is divided into a plurality of sliding operation periods, the deviation between the theoretical displacement and the actual displacement of the two sides of the jig frame is checked after a sliding operation period is finished, and the control schemes of the two sides of the jig frame in the lower sliding operation period are adjusted according to the deviation until the whole sliding process is finished;
After the sliding is carried out to the designated position, the adjustment of the vertical deviation can be realized by utilizing a roof truss jacking device arranged on the jig, and the adjustment of the horizontal deviation can be realized by utilizing the chain block and the walking device.
2. The steel structure roof jig frame slippage accuracy control method according to claim 1, wherein the step (3) specifically comprises:
(3.1) acquiring three-dimensional coordinate data of the side wall upright post bracket by adopting a three-dimensional scanning technology, and processing the data;
(3.2) reversely casting the measured three-dimensional coordinates of the side wall upright post corbels to a jig frame for carrying a roof truss, and assembling the roof truss according to the casting point positions, wherein the roof truss is fixedly assembled through bolts;
(3.3) starting the sliding of the jig frame by taking the distance between the adjacent calibration baselines as a single-stage sliding operation period, and checking the deviation between the theoretical displacement and the actual displacement of the two sides of the jig frame after the sliding operation period is finished, wherein the calibration baselines are obtained by respectively and equidistantly dividing a plurality of sliding tracks and correspond to the calibration baselines on different sliding tracks;
(3.4) adjusting the control schemes on the two sides of the jig frame according to the deviation obtained in the step (3.3) and entering the next single-stage sliding operation period;
(3.5) repeating the steps (3.3) and (3.4) until the sliding of the section of steel structure roof truss is completed, fixing the section of steel structure roof truss and the side wall upright post bracket through high-strength bolts, and welding and fixing all connecting parts in the roof truss;
And (3.6) repeating the steps (3.1) - (3.5) until the installation of the whole steel structure roof system is completed.
3. The steel structure roof jig frame slippage accuracy control method according to claim 2, characterized in that in the step (3.2), after roof truss assembly is completed, a three-dimensional scanning technology is adopted to check and inspect a roof truss;
the three-dimensional scanning technology is specifically applied to a laser three-dimensional scanner;
and (4) according to the control scheme of the deviation adjustment of the two sides of the jig frame obtained in the step (3.3), specifically, the walking speeds of the two sides of the jig frame are respectively controlled according to the deviation adjustment.
4. The steel structure roof jig frame slippage accuracy control method according to claim 2, characterized in that the distance between adjacent calibration baselines is 15 m;
the calibration baseline is divided on the sliding track by means of marking with a label or a marker pen.
5. The method for controlling the sliding precision of the steel structure roof jig frame according to claim 1, wherein the free ends of the factory building side wall columns are slightly deflected outwards when the steel structure of the factory building facade system is installed and controlled.
6. The steel structure roof jig frame slippage accuracy control method according to claim 1, wherein the number of the slippage tracks is two;
And (2) after finishing the deformation monitoring of the jig frame body and the confirmation of the traveling directions of the traveling devices on the two sides of the jig frame, performing jig frame trial sliding to ensure that the formal sliding requirement is met.
7. The method for controlling the sliding precision of the jig frame of the steel structure roof according to claim 1, wherein the roof truss jacking device is fixed on the jig frame and comprises a roof truss jacking support and an outer stabilizing frame;
the roof truss jacking support is arranged in the outer stabilizing frame, a roof truss jacking jack is arranged in the roof truss jacking support, the upper end of the roof truss jacking jack is fixedly connected with a roof truss, and the lower end of the roof truss jacking jack is fixed in the roof truss jacking support;
the outer stabilizing frame comprises a base frame and two roof truss fixed side frames, the upper end of the base frame is provided with an insertion port matched with the roof truss fixed side frames, the roof truss fixed side frames are inserted into the base frame, and the two roof truss fixed side frames are arranged on two sides of a roof truss beam to limit the roof truss beam.
8. The method for controlling the sliding precision of the steel structure roof jig frame according to claim 7, wherein the whole inserting port is of a C-shaped or a v-21274h-shaped structure, and a limiting bolt for fixing the roof frame fixing side frame at the inserting port is arranged on the side of the notch of the inserting port.
9. The method for controlling the sliding precision of the steel structure roof jig frame according to claim 1, wherein the roof frame and the bracket side wall upright post bracket are fixed through high-strength bolts and then welded and reinforced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371386.1A CN114753652A (en) | 2022-04-11 | 2022-04-11 | Steel structure roof jig frame sliding precision control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371386.1A CN114753652A (en) | 2022-04-11 | 2022-04-11 | Steel structure roof jig frame sliding precision control method |
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| CN114753652A true CN114753652A (en) | 2022-07-15 |
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| CN202210371386.1A Pending CN114753652A (en) | 2022-04-11 | 2022-04-11 | Steel structure roof jig frame sliding precision control method |
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