CN217924959U - Accurate positioning device for steel beam connection embedded bottom plate of frame structure workshop - Google Patents
Accurate positioning device for steel beam connection embedded bottom plate of frame structure workshop Download PDFInfo
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- CN217924959U CN217924959U CN202221066130.1U CN202221066130U CN217924959U CN 217924959 U CN217924959 U CN 217924959U CN 202221066130 U CN202221066130 U CN 202221066130U CN 217924959 U CN217924959 U CN 217924959U
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Abstract
The invention discloses an accurate positioning device for a steel beam connecting embedded bottom plate of a frame structure factory building, which solves the problem that the embedded bottom plate for connecting the steel beam often generates overlarge positioning elevation deviation on the top end of a precast concrete column in the prior art; the steel pipe support is erected on two sides of a precast concrete column, a stretcher type beam steel pipe is arranged between the steel pipe supports on the two sides, the stretcher type beam steel pipe is arranged above the top end of the precast concrete column, four hoisting steel pipes are arranged on the stretcher type beam steel pipe, a positioning plate is hoisted, bolt passing holes are formed in the positioning plate, connecting bolts on an embedded bottom plate of a connecting steel beam penetrate through the bolt passing holes formed in the positioning plate, the embedded bottom plate of the connecting steel beam is hoisted under the positioning plate, the stretcher type beam steel pipe on the steel pipe support and the positioning plate hoisted on the steel pipe support are used as references, and accurate positioning of the elevation of the embedded bottom plate of the connecting steel beam is achieved by adjusting positioning nuts.
Description
Technical Field
The invention relates to a steel structure frame factory building, in particular to a device for controlling the embedding precision of a steel beam bottom plate and foundation bolts and a precision control method.
Background
Columns of some frame structure plants are designed into concrete structure columns, and beams of the frame structure plants are designed into steel structure beams; in the concrete column body pouring, a bottom plate connected with a steel beam needs to be pre-buried in concrete on the top end face of the concrete column, pre-buried bolts are fixedly arranged on the steel beam connecting bottom plate, after the concrete column is poured, the steel beam is directly hoisted to the top end face of the concrete column, the pre-buried bolts on the steel beam bottom plate are connected in screw holes in a steel beam base in a penetrating mode, and the beam column is installed in place in a matched mode; the embedded steel beam bottom plate and the foundation bolts on the embedded steel beam bottom plate are used as important parts connected with the steel beam, and the embedded position of the embedded steel beam bottom plate is directly related to whether the steel beam can be installed in place at one time or not; because the steel structure concrete column is higher, the traditional positioning method is adopted, and the problem that the positioning precision of the position of the embedded steel plate is not high exists; especially, the columns of the frame structure factory building are arranged at intervals along a straight line, the number of concrete columns is large, when the steel beam bottom plate embedded in the columns is positioned, the columns need to be frequently arranged up and down, the defects of time and labor waste exist, the verticality of foundation bolts on the embedded steel beam bottom plate cannot meet the assembly requirement easily, the elevations of the top ends of the bolts and the steel beam bottom plate easily cause deviation between the columns, and the subsequent installation of the steel beam cannot be finished with high quality.
Disclosure of Invention
The utility model provides an accurate positioner of pre-buried bottom plate of connecting girder steel in frame construction factory building, the pre-buried bottom plate of connecting the girder steel that has solved prior art existence often takes place the location elevation deviation too big and the technical problem that the slope appears easily in precast concrete post top.
The invention solves the technical problems through the following technical scheme:
the general concept of the invention is: the method is characterized in that the traditional method for accurately positioning the steel beam embedded bottom plate by taking steel bars and templates in the precast concrete column as embedded bottom plates for connecting the steel beam is abandoned, steel tube supports are erected on two sides of the precast concrete column, a stretcher-type beam steel tube is arranged between the steel tube supports on the two sides, the stretcher-type beam steel tube is arranged above the top end of the precast concrete column, four suspended steel tubes are arranged on the stretcher-type beam steel tube and suspended to form a positioning plate, bolt through holes are formed in the positioning plate, the size of the positioning plate is the same as that of the embedded bottom plate for connecting the steel beam, the bolt through holes formed in the positioning plate are arranged corresponding to bolts on the embedded bottom plate for connecting the steel beam, the connecting bolts on the embedded bottom plate for connecting the steel beam are connected in the bolt through holes formed in the positioning plate in a penetrating manner, the embedded bottom plate for connecting the steel beam is suspended below the positioning plate, the stretcher-type beam steel tube on the steel tube supports and the positioning plate suspended above the stretcher-type beam steel tube are taken as references, and positioning nuts are adjusted to realize accurate positioning of the elevation of the embedded bottom plate for connecting the steel beam, and meanwhile, accurate positioning of the embedded bottom plate for accurately positioning of the connecting the steel beam is achieved.
An accurate positioning device for a steel beam connecting embedded bottom plate of a frame structure factory building comprises a precast concrete column template and an embedded bottom plate, wherein column internal steel bars are arranged in the precast concrete column template, embedded bottom plate connecting bolts are arranged on the top end face of the embedded bottom plate, left side vertical columns are arranged on the left side of the precast concrete column template at intervals, right side vertical columns are arranged on the right side of the precast concrete column template at intervals, left side longitudinal horizontal steel tubes are connected to the top ends of the left side vertical columns, right side longitudinal horizontal steel tubes are connected to the top ends of the right side vertical columns, front side top end transverse horizontal steel tubes and rear side top end transverse horizontal steel tubes are respectively arranged between the left side longitudinal horizontal steel tubes and the right side longitudinal horizontal steel tubes, positioning plates are hung between the front side top end transverse horizontal steel tubes and the rear side top end transverse horizontal steel tubes, and the positioning plates are hung on the two top end transverse horizontal steel tubes through hanging steel tubes; the shape and the size of the positioning plate are completely the same as those of the embedded bottom plate, a bolt through hole is formed in the positioning plate, the embedded bottom plate is arranged under the positioning plate, the upper end of a bolt connected with the embedded bottom plate penetrates through the bolt through hole and then is connected with an adjusting nut in a threaded mode, the embedded bottom plate is hung under the positioning plate, and the bottom end face of the embedded bottom plate is fixedly connected with the top end of the steel bar in the column.
The transverse horizontal steel pipe at the top end of the front side and the longitudinal horizontal steel pipe at the left side are connected together through a steel pipe cross fastener; the horizontal steel pipe at the top end of the front side and the hoisting steel pipe are also connected together through a steel pipe cross fastener; the lower end of the hoisting steel pipe is welded and connected on the top end surface of the positioning plate.
A level gauge is arranged on the positioning plate.
An accurate positioning method for a steel beam connection embedded bottom plate of a frame structure factory building comprises a precast concrete column template and an embedded bottom plate, wherein column internal steel bars are arranged in the precast concrete column template, and embedded bottom plate connecting bolts are arranged on the top end face of the embedded bottom plate; the method is characterized by comprising the following steps:
firstly, manufacturing a positioning plate which is identical to the embedded bottom plate in shape and size, drilling a bolt through hole on the positioning plate according to the position of an embedded bottom plate connecting bolt arranged on the top end face of the embedded bottom plate, and completely superposing the positioning plate and the embedded bottom plate after the embedded bottom plate connecting bolt passes through the bolt through hole;
secondly, arranging left upright columns at intervals on the left side of the precast concrete column template, and arranging right upright columns at intervals on the right side of the precast concrete column template, so that the top ends of the left upright columns and the right upright columns are higher than the top end of the precast concrete column template; arranging a left longitudinal horizontal steel pipe at the top end of the left upright post, arranging a right longitudinal horizontal steel pipe at the top end of the right upright post, and arranging transverse horizontal tie-in steel pipes at equal intervals between the left longitudinal horizontal steel pipe and the right longitudinal horizontal steel pipe, so that a stable cuboid steel pipe frame is built on the outer side and the upper side of the precast concrete column template;
thirdly, welding a hanging steel pipe on four top corners of the top end face of the positioning plate respectively, connecting the top ends of two hanging steel pipes on the rear side of the positioning plate to the horizontal steel pipe on the top end of the rear side through a steel pipe cross fastener respectively, and connecting the top ends of two hanging steel pipes on the front side of the positioning plate to the horizontal steel pipe on the top end of the front side by the same method;
fourthly, connecting the front-side top end transverse horizontal steel pipe and the rear-side top end transverse horizontal steel pipe which are hung with the positioning plate between the left-side longitudinal horizontal steel pipe and the right-side longitudinal horizontal steel pipe on two sides of the precast concrete column template, and enabling the positioning plate to be arranged right above the top ends of the steel bars in the column;
fifthly, positioning the embedded position of the embedded bottom plate at the top end of the steel bar in the column through a theodolite; then, adjusting the position of a positioning plate through four steel pipe cross fasteners connected with the top ends of the hanging steel pipes and four steel pipe cross fasteners of the top end transverse horizontal steel pipes and the corresponding longitudinal horizontal steel pipes, so that the orthographic projection of the positioning plate on the top end surfaces of the steel bars in the column is superposed with the design position of the embedded bottom plate, and in the process, leveling the positioning plate through a gradienter arranged on the positioning plate;
sixthly, connecting a pre-buried bottom plate connecting bolt on the pre-buried bottom plate in a bolt through hole drilled in the positioning plate in a penetrating mode, connecting the upper end of the pre-buried bottom plate connecting bolt with an adjusting nut after the pre-buried bottom plate connecting bolt penetrates through the bolt through hole, and adjusting the elevation of the pre-buried bottom plate to the position of the designed elevation by adjusting the adjusting nut; then, the embedded bottom plate is welded and connected with the top end reinforcing steel bars of the reinforcing steel bars in the column, so that the accurate positioning and fixing of the embedded bottom plate on the top ends of the reinforcing steel bars in the column are realized;
and seventhly, detaching the adjusting nuts, loosening the steel pipe cross fasteners connected with the top ends of the four hanging steel pipes, and lifting the positioning plate to separate the positioning plate from the embedded bottom plate connecting bolt.
Eighthly, loosening a steel pipe cross fastener between the front-side top end transverse horizontal steel pipe and the left-side longitudinal horizontal steel pipe and a steel pipe cross fastener between the front-side top end transverse horizontal steel pipe and the right-side longitudinal horizontal steel pipe, loosening steel pipe cross fasteners on two sides of the rear-side top end transverse horizontal steel pipe, hanging a positioning plate, moving an integral stretcher frame consisting of the front-side top end transverse horizontal steel pipe and the rear-side top end transverse horizontal steel pipe to be in the air to be right above a next precast concrete column template, repeating the steps from the fifth step to the seventh step, and finishing pre-burying and fixing installation of a second pre-buried bottom plate on the top end of a steel bar in a column in the next precast concrete column template; and repeating the steps to accurately position and fix the embedded bottom plates on all the precast concrete columns arranged on a straight line one by one.
The method takes the stable cuboid steel tube frame arranged on the outer side and the upper part of the precast concrete column template as the positioning reference, realizes the accurate positioning of the elevation of the embedded bottom plate of the connecting steel beam on the precast concrete column, and simultaneously achieves the accurate positioning of the verticality of the connecting bolt on the embedded bottom plate of the connecting steel beam, and has high positioning precision and easy field operation; the accurate positioning of the steel beam at the top end of each pre-cast concrete column on the same plug wall of a frame structure factory building can be realized by using the horizontal movement of the whole stretcher frame in the air, the defect that the steel beam needs to repeatedly climb to the column top to position the pre-cast steel plate in the prior art is overcome, the site construction efficiency is high, the positioning quality of the pre-cast steel plate is high, and convenient and accurate installation conditions are provided for the installation of subsequent steel beams.
Drawings
FIG. 1 is a schematic view of the present invention in a front view;
fig. 2 is a schematic structural view in a top view direction of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
an accurate positioning device for connecting a steel beam with an embedded bottom plate of a frame structure factory building comprises a precast concrete column template 1 and an embedded bottom plate 11, wherein an in-column steel bar 2 is arranged in the precast concrete column template 1, an embedded bottom plate connecting bolt 13 is arranged on the top end surface of the embedded bottom plate 11, left side upright posts 3 are arranged on the left side of the precast concrete column template 1 at intervals, right side upright posts 4 are arranged on the right side of the precast concrete column template 1 at intervals, a left side longitudinal horizontal steel tube 5 is connected to the top end of the left side upright post 3, a right side longitudinal horizontal steel tube 6 is connected to the top end of the right side upright post 4, a front side top end transverse horizontal steel tube 7 and a rear side top end transverse horizontal steel tube 8 are respectively arranged between the left side longitudinal horizontal steel tube 5 and the right side longitudinal horizontal steel tube 6, a positioning plate 9 is hung between the front side top end transverse horizontal steel tube 7 and the rear side top end transverse horizontal steel tube 8, and the positioning plate 9 is hung on the two top end transverse horizontal steel tubes through a hanging steel tube 10; the shape and the size of the positioning plate 9 are completely the same as those of the embedded bottom plate 11, a bolt through hole 12 is formed in the positioning plate 9, the embedded bottom plate 11 is arranged under the positioning plate 9, the upper end of the embedded bottom plate connecting bolt 13 penetrates through the bolt through hole 12 and then is in threaded connection with the adjusting nut 14, the embedded bottom plate 11 is hung under the positioning plate 9, and the bottom end face of the embedded bottom plate 11 is fixedly connected with the top end of the steel bar 2 in the column.
The transverse horizontal steel pipe 7 at the top end of the front side and the longitudinal horizontal steel pipe 5 at the left side are connected together through a steel pipe cross fastener 15; the front side top end transverse horizontal steel pipe 7 and the hoisting steel pipe 10 are also connected together through a steel pipe cross fastener; the lower end of the suspension steel pipe 10 is welded and connected on the top end surface of the positioning plate 9.
A level gauge is arranged on the positioning plate 9.
An accurate positioning method for connecting a steel beam with an embedded bottom plate of a frame structure factory building comprises a precast concrete column template 1 and an embedded bottom plate 11, wherein an in-column steel bar 2 is arranged in the precast concrete column template 1, and an embedded bottom plate connecting bolt 13 is arranged on the top end surface of the embedded bottom plate 11; the method is characterized by comprising the following steps:
firstly, manufacturing a positioning plate 9 which has the same shape and size as the embedded bottom plate 11, and drilling a bolt through hole 12 on the positioning plate 9 according to the position of an embedded bottom plate connecting bolt 13 arranged on the top end face of the embedded bottom plate 11, so that the positioning plate 9 and the embedded bottom plate 11 can be completely superposed together after the embedded bottom plate connecting bolt 13 passes through the bolt through hole 12;
secondly, arranging left upright posts 3 at intervals on the left side of the precast concrete column template 1, and arranging right upright posts 4 at intervals on the right side of the precast concrete column template 1, so that the top ends of the left upright posts 3 and the right upright posts 4 are higher than the top end of the precast concrete column template 1; arranging a left longitudinal horizontal steel pipe 5 at the top end of the left upright post 3, arranging a right longitudinal horizontal steel pipe 6 at the top end of the right upright post 4, and arranging transverse horizontal pull-joint steel pipes at equal intervals between the left longitudinal horizontal steel pipe 5 and the right longitudinal horizontal steel pipe 6, so that a stable cuboid steel pipe frame is built outside and above the precast concrete column template 1;
thirdly, welding one hanging steel pipe 10 on four top corners of the top end face of the positioning plate 9 respectively, connecting the top ends of two hanging steel pipes 10 on the rear side of the positioning plate 9 to the horizontal steel pipe 8 on the top end of the rear side through a steel pipe cross fastener 15 respectively, and connecting the top ends of two hanging steel pipes 10 on the front side of the positioning plate 9 to the horizontal steel pipe 7 on the top end of the front side by the same method;
fourthly, connecting a front side top end transverse horizontal steel pipe 7 and a rear side top end transverse horizontal steel pipe 8 which are hung with a positioning plate 9 between a left side longitudinal horizontal steel pipe 5 and a right side longitudinal horizontal steel pipe 6 on two sides of a precast concrete column template 1, and enabling the positioning plate 9 to be arranged right above the top end of a steel bar 2 in the column;
fifthly, positioning the embedded position of the embedded bottom plate 11 at the top end of the steel bar 2 in the column through a theodolite; then, adjusting the position of the positioning plate 9 through the steel pipe cross fasteners 15 connected with the top ends of the four hanging steel pipes 10 and the steel pipe cross fasteners of the top end transverse horizontal steel pipes and the corresponding longitudinal horizontal steel pipes, so that the orthographic projection of the positioning plate 9 on the top end surface of the steel bar 2 in the column is superposed with the design position of the embedded bottom plate 11, and in the process, leveling the positioning plate 9 through a level gauge arranged on the positioning plate 9;
sixthly, connecting embedded bottom plate connecting bolts 13 on the embedded bottom plates 11 in bolt through holes 12 drilled on the positioning plate 9 in a penetrating manner, wherein the upper ends of the embedded bottom plate connecting bolts 13 are in threaded connection with adjusting nuts 14 after penetrating through the bolt through holes 12,
adjusting the elevation of the embedded bottom plate 11 to the position of the designed elevation by adjusting the adjusting nut 14; then, the embedded bottom plate 11 is welded and connected with the top end steel bar of the steel bar 2 in the column, so that the accurate positioning and fixing of the embedded bottom plate 11 on the top end of the steel bar 2 in the column are realized;
and seventhly, detaching the adjusting nuts 14, loosening the steel pipe cross fasteners 15 connected with the top ends of the four hanging steel pipes 10, and lifting the positioning plate 9 to separate the positioning plate 9 from the embedded bottom plate connecting bolts 13.
Eighthly, loosening a steel tube cross fastener between the front-side top end transverse horizontal steel tube 7 and the left-side longitudinal horizontal steel tube 5 and a steel tube cross fastener between the front-side top end transverse horizontal steel tube 7 and the right-side longitudinal horizontal steel tube 6, loosening steel tube cross fasteners on two sides of the rear-side top end transverse horizontal steel tube 8, hanging an integral stretcher frame consisting of the front-side top end transverse horizontal steel tube 7 and the rear-side top end transverse horizontal steel tube 8 and provided with a positioning plate 9, moving the integral stretcher frame to be right above the next precast concrete column template in the air in a translation mode, and repeating the steps from the fifth step to the seventh step to finish the pre-embedding and fixing installation of a second pre-embedded bottom plate on the top end of a steel bar in the next precast concrete column template; and repeating the steps to accurately position and fix all the pre-cast bottom plates arranged on the same straight line one by one.
Claims (3)
1. An accurate positioning device for connecting a steel beam with an embedded bottom plate of a frame structure factory building comprises a precast concrete column template (1) and the embedded bottom plate (11), wherein a steel bar (2) in the column is arranged in the precast concrete column template (1), and an embedded bottom plate connecting bolt (13) is arranged on the top end face of the embedded bottom plate (11), and is characterized in that left side upright columns (3) are arranged on the left side of the precast concrete column template (1) at intervals, right side upright columns (4) are arranged on the right side of the precast concrete column template (1) at intervals, a left side longitudinal horizontal steel pipe (5) is connected to the top end of the left side upright column (3), a right side longitudinal horizontal steel pipe (6) is connected to the top end of the right side upright column (4), a front side top end transverse horizontal steel pipe (7) and a rear side top end transverse horizontal steel pipe (8) are respectively arranged between the left side longitudinal horizontal steel pipe (5) and the right side longitudinal horizontal steel pipe (6), and a hanging positioning plate (9) is connected to the top end of the transverse horizontal steel pipe (7) through a hanging positioning plate (10); the shape and the size of locating plate (9) are the same with the shape and the size of pre-buried bottom plate (11) completely, on locating plate (9), be provided with bolt cross-under hole (12), pre-buried bottom plate (11) set up under locating plate (9), the upper end of pre-buried bottom plate connecting bolt (13), pass bolt cross-under hole (12) after, with adjusting nut (14) spiro union together, make pre-buried bottom plate (11) hang and connect under locating plate (9), the bottom face of pre-buried bottom plate (11) is in the same place with the top fixed connection of post inner steel muscle (2).
2. The accurate positioning device for the steel beam connecting embedded bottom plate of the frame structure factory building according to the claim 1, characterized in that the transverse horizontal steel tube (7) at the top end of the front side and the longitudinal horizontal steel tube (5) at the left side are connected together through a steel tube cross fastener (15); the front side top end transverse horizontal steel pipe (7) and the hanging steel pipe (10) are also connected together through a steel pipe cross fastener; the lower end of the suspension steel pipe (10) is welded and connected on the top end surface of the positioning plate (9).
3. The accurate positioning device for the steel beam connection embedded bottom plate of the frame structure factory building according to the claim 1 or 2, characterized in that a level is arranged on the positioning plate (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221066130.1U CN217924959U (en) | 2022-05-06 | 2022-05-06 | Accurate positioning device for steel beam connection embedded bottom plate of frame structure workshop |
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| CN202221066130.1U CN217924959U (en) | 2022-05-06 | 2022-05-06 | Accurate positioning device for steel beam connection embedded bottom plate of frame structure workshop |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117005729A (en) * | 2023-07-11 | 2023-11-07 | 中国铁路设计集团有限公司 | A prefabricated prefabricated column inspection pit structure and construction method capable of forward construction |
| CN117888753A (en) * | 2024-01-05 | 2024-04-16 | 中铁建华南建设(广州)高科技产业有限公司 | Pillar type inspection pit and its construction method |
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2022
- 2022-05-06 CN CN202221066130.1U patent/CN217924959U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117005729A (en) * | 2023-07-11 | 2023-11-07 | 中国铁路设计集团有限公司 | A prefabricated prefabricated column inspection pit structure and construction method capable of forward construction |
| CN117888753A (en) * | 2024-01-05 | 2024-04-16 | 中铁建华南建设(广州)高科技产业有限公司 | Pillar type inspection pit and its construction method |
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