CN113898195A - Assembled concrete structure wall column hoisting guiding and positioning device and construction method - Google Patents
Assembled concrete structure wall column hoisting guiding and positioning device and construction method Download PDFInfo
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- CN113898195A CN113898195A CN202111364428.0A CN202111364428A CN113898195A CN 113898195 A CN113898195 A CN 113898195A CN 202111364428 A CN202111364428 A CN 202111364428A CN 113898195 A CN113898195 A CN 113898195A
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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
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- 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
- E04G21/18—Adjusting tools; Templates
-
- 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
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
Abstract
The invention relates to an assembly type concrete structure wall column hoisting guiding and positioning device and a construction method. The device can be repeatedly used, is convenient for hoisting, guiding and positioning the wall and the column of the fabricated concrete structure, and improves the working efficiency.
Description
Technical Field
The invention relates to a wall column hoisting guiding and positioning device of an assembled concrete structure and a construction method.
Background
In recent years, prefabricated structures are widely popularized and applied because of the advantages of short construction period, low labor intensity, environmental protection, standardized production of components in factories and the like, and the prefabricated structures conform to the industrial development of buildings. However, for the hoisting of prefabricated walls and columns of prefabricated concrete structures, at least 3 workers are needed to work on site when the crane lifts the components to the position close to the preassembly position, wherein 2 workers work with the crane to move the prefabricated walls and columns slowly by raising and pushing the rods and the crane. Meanwhile, 1 other worker squats to hold a mirror to look at the position of a sleeve at the bottom of the prefabricated wall or column; the hoisting of each member is carried out by the cooperation of 3 workers on site and a crane, so that the prefabricated wall and the column bottom sleeve are aligned with the exposed steel bars of the lower constructed member and then slowly put down.
The traditional hoisting mode has complicated construction site procedures, requires more workers to be matched, and has larger potential safety hazard to squat glasses holders; the spare reinforcing bar is still bumped easily to the component in the hoist and mount process, causes the reinforcing bar deformation and then leads to the installation not down or the installation back connecting reinforcement sleeve's clearance is not conform to the standard the requirement, influence the atress performance of structure. Meanwhile, the crane depends on more manual cooperation, the utilization rate of the crane is low, the overall construction efficiency is low, and the economic benefit is poor.
Disclosure of Invention
The invention aims to provide a wall and column hoisting, guiding and positioning device of an assembled concrete structure and a construction method.
The technical scheme of the invention is as follows: the utility model provides an assembled concrete structure wall post hoist and mount guiding orientation device, is including being used for pre-buried subassembly in the floor, be fixed with supporting component on the pre-buried subassembly, the vertical location guide bar that is provided with in front side of supporting component, the last adjustment mechanism who adjusts location guide bar position and vertical degree that is provided with of supporting component.
Furthermore, the supporting assembly comprises a fixing plate, two parallel triangular trusses are fixed on the fixing plate side by side, and a gap avoiding the positioning guide rod is formed between the two triangular trusses.
Furthermore, the adjusting mechanism comprises a supporting adjusting rod hinged to the upper portion and the lower portion of the positioning guide rod, an upper portion positioning support is installed on the rear side of the upper portion of the supporting assembly, the rear portion of the supporting adjusting rod located on the upper portion penetrates through the upper portion positioning support and is locked through an adjusting nut, a lower portion positioning support is installed on the rear side of the lower portion of the supporting assembly, and the rear portion of the supporting adjusting rod located on the lower portion penetrates through the lower portion positioning support and is locked through the adjusting nut.
Furthermore, the support adjusting rod is a screw rod, the front end of the support adjusting rod is hinged with the rear side face of the positioning guide rod through a hinge, and the support adjusting rod is connected with a pair of adjusting nuts in a threaded mode.
Furthermore, the positioning guide rod is a rectangular steel pipe, and the lower end of the positioning guide rod is arc-shaped.
Furthermore, the embedded assembly comprises horizontal steel bar rings fixedly connected with the lower ends of the supporting assemblies, and vertical connecting rods are fixed on the lower sides of the horizontal steel bar rings at intervals.
Furthermore, the horizontal reinforcing rings are connected with the lower ends of the supporting components through electric welding spot welding, and four vertical connecting rods are fixed on the lower sides of the horizontal reinforcing rings at intervals.
A construction method for hoisting, guiding and positioning a wall and a column of an assembled concrete structure comprises a device for hoisting, guiding and positioning the wall and the column of the assembled concrete structure, and comprises the following steps:
1) prefabricating a prefabricated concrete structure wall and column hoisting guide positioning device;
2) preparing a prefabricated lower column, a prefabricated upper column and a prefabricated beam connected to the upper end of the prefabricated lower column, wherein the connection between the beam end of the prefabricated beam and the upper end column head of the prefabricated lower column is a cast-in-place concrete node core area, beam stirrups are arranged on the upper portion of the prefabricated beam and bound with beam longitudinal reinforcements, cast-in-place concrete is formed in a cast-in-place concrete superposed position, prefabricated column vertical reinforcements and transverse beam reinforcements penetrating out of the beam end of the prefabricated beam are arranged on the upper end column head of the prefabricated lower column at intervals, and a connecting sleeve for sleeve grouting connection is pre-buried in the lower end column head of the prefabricated upper column;
3) hoisting the prefabricated lower column and the prefabricated beam connected to the column cap at the upper end of the prefabricated lower column, and correcting the overhanging steel bars at the upper end of the prefabricated lower column and the end of the prefabricated beam;
4) concrete at the core area of the node and the superposed part of the superposed beam slab is cast in situ, so that the casting plane reaches the plane required by construction;
5) when concrete is poured and before the concrete is solidified, preliminarily positioning the embedded assembly according to the position of the exposed steel bar of the prefabricated lower column, simultaneously inserting the vertical steel bar of the embedded assembly into the concrete, and exposing the horizontal steel bar ring out of the concrete pouring surface;
6) after the concrete is hardened, a fixing plate of the supporting assembly is placed on the horizontal reinforcing ring, and the approximate relative position of the fixing plate and the exposed reinforcing steel bar of the prefabricated lower column is rechecked; one side of the fixing plate is approximately parallel to the whole row of one side of the exposed steel bar of the prefabricated lower column, and the distance is 3-5 cm; connecting the fixing plate of the supporting component with the horizontal reinforcing steel bar ring by spot welding;
7) the position and the vertical degree of the positioning guide rod are adjusted by adjusting the actual supporting length of the upper supporting adjusting rod and the lower supporting adjusting rod of the two guiding and positioning devices on the same side respectively, so that the positioning guide rods of the two guiding and positioning devices form a first plane which is tightly attached to the edge of the prefabricated column and is vertical to the horizontal plane;
8) step 7) in the same manner, adjusting the other two guiding and positioning devices of the adjacent column edges to enable the positioning guide rods of the two guiding and positioning devices to form a second plane, wherein the second plane is tightly attached to the prefabricated column edge and is vertical to the horizontal ground and the first plane;
9) hoisting the prefabricated column, and pushing the prefabricated column to be tightly attached to the first plane and the second plane by workers in a matching way to finish the positioning of the prefabricated part;
10) rechecking and adjusting the verticality of the prefabricated column, and installing a temporary support of the prefabricated part;
11) disassembling the guiding and positioning device;
12) the lifting hook is loosened;
13) and finishing the joint of the prefabricated column and the grouting of the sleeve connection.
Compared with the prior art, the invention has the following advantages:
1. the device can be disassembled and assembled except for the pre-buried unit, can be repeatedly used, and has low unit cost after being uniformly shared.
2. The device can reduce the on-spot staff's recruitment of hoist and mount, avoids squatting workman's potential safety hazard.
3. The device can reduce the total working time of the crane and improve the use efficiency of the crane, thereby improving the economic benefit.
4. The device can be used together with the prefabricated concrete structure column hoisting elevation and verticality adjusting device and the construction method (201811420030.2) thereof, the two pre-embedded units are integrated together and embedded together, the construction method is simple, the wall and column hoisting installation position precision can be improved, the engineering quality is ensured, and the overall benefit is improved.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a right side view of FIG. 1 of the present invention;
FIG. 3 is a cross-sectional view of the apparatus of the present invention;
FIG. 4 is a cross-sectional view of the device of the present invention in an initial state;
FIG. 5 is a top view of the apparatus of the present invention in an operating state;
FIG. 6 is a cross-sectional view of the apparatus of the present invention in an operating state;
FIG. 7 is a schematic diagram illustrating the forward tilt adjustment of the device according to the present invention due to uneven ground;
FIG. 8 is a schematic view of the device for adjusting the back tilt due to uneven ground according to the present invention;
FIG. 9 is a schematic view illustrating the deflection adjustment of the device according to the present invention due to uneven ground;
in the figure: 1, a support component; 2, an adjusting mechanism; 3, positioning a guide rod; 4, pre-embedding the assembly; 5, fixing a plate; 6-triangular trusses; 6a to a gap; 7-an upper positioning bracket; 8, supporting and adjusting rods; 9-a lower positioning bracket; 10, adjusting a nut; 11-a hinge; 12-horizontal reinforcing steel rings; 13-vertical connecting rods; 14-prefabricating an upper column; 15-prefabricating a lower column; 16-reserving column steel bars; 17-prefabricating a steel bar connecting sleeve reserved on the upper column, and 18-reserving a longitudinal bar; 19-reserving stirrups; 20-prefabricating a beam; 21-cast-in-place overlapping part; 22 to a first plane; 23 to a second plane.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1 to 9
The utility model provides an assembled concrete structure wall post hoist and mount guiding orientation device, is including being used for pre-buried subassembly 4 in the floor, be fixed with supporting component 2 on the pre-buried subassembly, the vertical location guide bar 3 that is provided with in front side of supporting component is provided with adjustment mechanism 2 who adjusts location guide bar position and vertical degree on the supporting component.
In this embodiment, the mounting of the support assembly comprises a fixed plate 5, which is a steel plate, in order to better position the guide bar. Two parallel triangular trusses 6 are fixed on the fixing plate side by side, a gap 6a avoiding the positioning guide rod is formed between the two triangular trusses, and a width enough for placing the positioning guide rod is reserved between the two parallel triangular trusses 6.
In this embodiment, in order to better adjust the position and the vertical degree of the positioning guide rod, the adjusting mechanism includes a supporting adjusting rod 8 hinged to the upper and lower portions of the positioning guide rod, an upper positioning bracket 7 is installed on the rear side of the upper portion of the supporting assembly, the rear portion of the supporting adjusting rod located on the upper portion penetrates through the upper positioning bracket and is locked by an adjusting nut 10, a lower positioning bracket 9 is installed on the rear side of the lower portion of the supporting assembly, and the rear portion of the supporting adjusting rod located on the lower portion penetrates through the lower positioning bracket and is locked by the adjusting nut 10. Therefore, the actual supporting length of the supporting component in the horizontal direction of the supporting adjusting rod is changed by adjusting the position of the adjusting nut, and the position and the vertical degree of the positioning guide rod are further adjusted.
In this embodiment, the support adjusting rod is a screw rod, the front end of the support adjusting rod is hinged to the rear side surface of the positioning guide rod through a hinge 11, and the support adjusting rod is screwed with a pair of adjusting nuts 10 so as to be matched with the corresponding positioning supports to complete locking.
In this embodiment, the positioning guide rod is a rectangular steel pipe and the lower end is arc-shaped, so that interference during adjustment is avoided.
In this embodiment, in order to facilitate the installation of the device, the embedded component includes a horizontal steel bar 13 fixedly connected to the lower end of the supporting component, and the horizontal steel bar is connected to the lower end of the supporting component by spot welding to fix the supporting component 1. Four vertical connecting rods 13 are fixed on the lower side of the horizontal reinforcing steel bar ring at intervals, and the vertical connecting rods are phi 8 reinforcing steel bars, so that materials are convenient to obtain.
The device combines embedded parts of the invention patent 'the assembled concrete structure column hoisting elevation and verticality adjusting device and the construction method (201811420030.2)', and the two are embedded simultaneously.
A construction method for hoisting, guiding and positioning a wall and a column of an assembled concrete structure comprises a device for hoisting, guiding and positioning the wall and the column of the assembled concrete structure, and comprises the following steps:
1) prefabricating a prefabricated concrete structure wall and column hoisting guide positioning device;
2) preparing a prefabricated lower column 15, a prefabricated upper column 14 and a prefabricated beam 20 connected to the upper end of the prefabricated lower column, wherein the connection between the beam end of the prefabricated beam 20 and the head of the upper end of the prefabricated lower column 15 is a cast-in-place concrete node core area, beam stirrups 19 are arranged on the upper portion of the prefabricated beam 20 and bound with beam longitudinal reinforcements 18, cast-in-place concrete is cast in place to form a cast-in-place concrete superposition part 21, prefabricated column vertical reinforcements 16 and transverse beam reinforcements penetrating out of the beam end of the prefabricated beam 20 are arranged on the head of the upper end of the prefabricated lower column 15 at intervals, and a connecting sleeve 17 for sleeve grouting connection is pre-buried in the head of the lower end of the prefabricated upper column 14;
3) hoisting the prefabricated lower column 15 and the prefabricated beam 20 connected to the column cap at the upper end of the prefabricated lower column 15, and correcting the overhanging steel bars at the upper end of the prefabricated lower column 15 and the end of the prefabricated beam 20;
4) concrete at the core area of the node and the superposed part of the superposed beam slab is cast in situ, so that the casting plane reaches the plane required by construction;
5) when concrete is poured and before the concrete is solidified, preliminarily positioning the embedded component 4 by referring to the position of the exposed steel bar of the prefabricated lower column 15 (one edge of an iron ring is approximately parallel to one whole row of the exposed steel bar of the prefabricated lower column 15, and the distance is 3-5 cm), and simultaneously inserting four vertical steel bars 13 of the embedded component 4 into the concrete and exposing the horizontal steel bar ring 12 out of the concrete pouring surface;
6) after the concrete is hardened, the fixing plate 5 of the supporting component 1 is placed on the horizontal reinforcing steel ring, and the approximate relative position of the fixing plate 5 and the exposed reinforcing steel of the prefabricated lower column 15 is rechecked; one side of the fixing plate 5 is approximately parallel to the whole row of one side of the prefabricated lower column 15, on which the exposed steel bars are arranged, and the distance is 3-5 cm; and spot welding the fixing plate 5 of the support assembly to the horizontal reinforcing ring 12;
7) the position and the vertical degree of the positioning guide rod 3 are adjusted by adjusting the actual supporting length of the upper and lower supporting adjusting rods 8 of the two guiding and positioning devices on the same side, so that the positioning guide rods 3 of the two guiding and positioning devices form a first plane 22 which is tightly attached to the edge of the prefabricated column and is vertical to the horizontal plane;
8) in the same manner, step 7) of adjusting the other two guiding and positioning devices of the adjacent column edges to enable the front side surfaces of the positioning guide rods 3 of the two guiding and positioning devices to form a second plane 23, wherein the second plane is tightly attached to the prefabricated column edges and is perpendicular to the horizontal ground and the first plane 22;
9) hoisting the prefabricated column, and pushing the prefabricated column to be tightly attached to the first plane 22 and the second plane 23 by workers in a matching way to finish the positioning of the prefabricated part;
10) rechecking and adjusting the verticality of the prefabricated column, and installing a temporary support of the prefabricated part;
11) disassembling the guiding and positioning device;
12) lifting the hook of the prefabricated column;
13) and finishing the joint of the prefabricated column and the grouting of the sleeve connection.
With reference to fig. 1 to 9, the working state of the device for hoisting, guiding and positioning the wall and the column of the prefabricated concrete structure is as follows:
as shown in fig. 4, when the prefabricated concrete structure wall and column hoisting guiding and positioning device is in an initial state, three or four devices are respectively arranged on two adjacent sides of the prefabricated column, fixed on the embedded component 4, and the actual supporting lengths of the upper and lower supporting and adjusting rods 8 are adjusted to adjust the position and the vertical degree of the positioning and guiding rod, so that a vertical plane is constructed, and the vertical planes constructed by the two groups of guiding and positioning devices are perpendicular to each other and to the horizontal plane.
As shown in fig. 6, when the prefabricated concrete structure wall and column hoisting guiding and positioning device is in a working state, the prefabricated upper column 14 is hoisted above the two groups of devices, the prefabricated upper column 14 is pushed to be tightly attached to the first plane 22 and the second plane 23, the prefabricated upper column 14 is directly hoisted downwards, the reserved column steel bars 16 extend into the steel bar connecting sleeve 17 of the prefabricated upper column, the gap between the reserved column steel bars 16 and the steel bar connecting sleeve 17 meets the specification, the temporary support is installed, and the hoisting is completed.
As shown in fig. 7 to 9, since the cast-in-place laminated concrete floor is not necessarily completely horizontal or has a primary positioning deviation, the placement of the device in forward inclination (fig. 7), backward inclination (fig. 8) or deflection (fig. 9) may occur in actual operation, and at this time, the operation state may be realized by the adjusting mechanism, and the specific method is shown in the figure.
It will be apparent to those skilled in the art that various modifications, changes, substitutions and variations can be made in the above embodiments without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides an assembled concrete structure wall post hoist and mount guiding orientation device which characterized in that, is including being used for pre-buried subassembly in the floor, be fixed with supporting component on the pre-buried subassembly, the vertical location guide bar that is provided with in front side of supporting component, the last adjustment mechanism who adjusts location guide bar position and vertical degree that is provided with of supporting component.
2. The device of claim 1, wherein the support assembly comprises a fixed plate, two parallel triangular trusses are fixed on the fixed plate side by side, and a gap is formed between the two triangular trusses to avoid the positioning guide rod.
3. The device for hoisting, guiding and positioning the wall column of the prefabricated concrete structure according to claim 1 or 2, wherein the adjusting mechanism comprises a support adjusting rod hinged to the upper and lower portions of the positioning and guiding rod, an upper positioning bracket is installed on the rear side of the upper portion of the support assembly, the rear portion of the support adjusting rod located on the upper portion penetrates through the upper positioning bracket and is locked by an adjusting nut, a lower positioning bracket is installed on the rear side of the lower portion of the support assembly, and the rear portion of the support adjusting rod located on the lower portion penetrates through the lower positioning bracket and is locked by the adjusting nut.
4. The device as claimed in claim 3, wherein the support adjusting rod is a screw rod, the front end of the support adjusting rod is hinged to the rear side of the positioning guide rod via a hinge, and the support adjusting rod is screwed with a pair of adjusting nuts.
5. The device for hoisting, guiding and positioning the wall column of the prefabricated concrete structure according to claim 1, 2 or 4, wherein the positioning guide rod is a rectangular steel pipe and has an arc-shaped lower end.
6. The device for hoisting, guiding and positioning the prefabricated concrete structure wall column as claimed in claim 3, wherein the pre-buried assembly comprises horizontal steel rings fixedly connected with the lower ends of the supporting assemblies, and vertical connecting rods are fixed on the lower sides of the horizontal steel rings at intervals.
7. The apparatus as claimed in claim 6, wherein the horizontal reinforcing rings are spot welded to the lower ends of the supporting members, and four vertical links are fixed to the lower sides of the horizontal reinforcing rings at intervals.
8. A construction method for hoisting, guiding and positioning prefabricated concrete structure walls and columns, which comprises the device for hoisting, guiding and positioning prefabricated concrete structure walls and columns as claimed in claim 6, and is characterized by comprising the following steps:
1) prefabricating a prefabricated concrete structure wall and column hoisting guide positioning device;
2) preparing a prefabricated lower column, a prefabricated upper column and a prefabricated beam connected to the upper end of the prefabricated lower column, wherein the connection between the beam end of the prefabricated beam and the upper end column head of the prefabricated lower column is a cast-in-place concrete node core area, beam stirrups are arranged on the upper portion of the prefabricated beam and bound with beam longitudinal reinforcements, cast-in-place concrete is formed in a cast-in-place concrete superposed position, prefabricated column vertical reinforcements and transverse beam reinforcements penetrating out of the beam end of the prefabricated beam are arranged on the upper end column head of the prefabricated lower column at intervals, and a connecting sleeve for sleeve grouting connection is pre-buried in the lower end column head of the prefabricated upper column;
3) hoisting the prefabricated lower column and the prefabricated beam connected to the column cap at the upper end of the prefabricated lower column, and correcting the overhanging steel bars at the upper end of the prefabricated lower column and the end of the prefabricated beam;
4) concrete at the core area of the node and the superposed part of the superposed beam slab is cast in situ, so that the casting plane reaches the plane required by construction;
5) when concrete is poured and before the concrete is solidified, preliminarily positioning the embedded assembly according to the position of the exposed steel bar of the prefabricated lower column, simultaneously inserting the vertical steel bar of the embedded assembly into the concrete, and exposing the horizontal steel bar ring out of the concrete pouring surface;
6) after the concrete is hardened, a fixing plate of the supporting assembly is placed on the horizontal reinforcing ring, and the approximate relative position of the fixing plate and the exposed reinforcing steel bar of the prefabricated lower column is rechecked; one side of the fixing plate is approximately parallel to the whole row of one side of the exposed steel bar of the prefabricated lower column, and the distance is 3-5 cm; connecting the fixing plate of the supporting component with the horizontal reinforcing steel bar ring by spot welding;
7) the position and the vertical degree of the positioning guide rod are adjusted by adjusting the actual supporting length of the upper supporting adjusting rod and the lower supporting adjusting rod of the two guiding and positioning devices on the same side respectively, so that the positioning guide rods of the two guiding and positioning devices form a first plane which is tightly attached to the edge of the prefabricated column and is vertical to the horizontal plane;
8) step 7) in the same manner, adjusting the other two guiding and positioning devices of the adjacent column edges to enable the positioning guide rods of the two guiding and positioning devices to form a second plane, wherein the second plane is tightly attached to the prefabricated column edge and is vertical to the horizontal ground and the first plane;
9) hoisting the prefabricated column, and pushing the prefabricated column to be tightly attached to the first plane and the second plane by workers in a matching way to finish the positioning of the prefabricated part;
10) rechecking and adjusting the verticality of the prefabricated column, and installing a temporary support of the prefabricated part;
11) disassembling the guiding and positioning device;
12) the lifting hook is loosened;
13) and finishing the joint of the prefabricated column and the grouting of the sleeve connection.
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| CN202111364428.0A CN113898195B (en) | 2021-11-17 | 2021-11-17 | Assembled concrete structure wall column hoisting guiding and positioning device and construction method |
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| CN202111364428.0A CN113898195B (en) | 2021-11-17 | 2021-11-17 | Assembled concrete structure wall column hoisting guiding and positioning device and construction method |
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| CN113898195B CN113898195B (en) | 2023-02-24 |
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| CN113047666A (en) * | 2021-04-09 | 2021-06-29 | 西安建筑科技大学 | Limiting device is supported in installation of assembled PC wall |
| CN113417473A (en) * | 2021-08-13 | 2021-09-21 | 上海城建市政工程（集团）有限公司 | Fine adjustment tool and working method thereof |
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