Sectional hoisting and fixing device for ultrahigh prefabricated column
Through the use of fixing devices, the problem of limited hoisting of super-high prefabricated columns was solved, efficient segmented hoisting and splicing were achieved, construction costs were reduced, and construction efficiency and accuracy were improved.
Patent Information
- Application Number
- CN202422742622.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The lifting of prefabricated columns in ultra-high spaces is limited by the lifting weight of conventional tower cranes, and normal lifting is impossible or the tower crane model needs to be increased, resulting in increased construction costs. In addition, the connection nodes are difficult to operate during segmented lifting, and grouting operations cannot be carried out.
The fixing devices used include embedded threads, fixed angle steels, positioning parts and tensioning parts. The fixed angle steels are connected by positioning bolts and tensioning screws to form a stable structural system, provide positioning references and lifting limits, and ensure the splicing accuracy of prefabricated columns.
It improves the efficiency of segmented hoisting of ultra-high prefabricated columns, ensures splicing accuracy, facilitates grouting construction, and reduces construction costs.
Smart Images
Figure CN223358450U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building construction, and in particular relates to a segmented hoisting and fixing device for super-high prefabricated columns. Background Art
[0002] In recent years, the construction industry has been undergoing rapid transformation and upgrading. With the increasing application of prefabricated construction methods in various public construction projects, the construction of prefabricated components has become an indispensable part of the construction process. However, the lifting of some prefabricated columns in ultra-high spaces is limited by the lifting capacity of conventional tower cranes, making it impossible to lift them normally. In order to lift a single prefabricated column, the tower crane model must be increased, and even large truck cranes must be equipped separately. This greatly increases construction costs and is not conducive to the normal development of industrialized construction. To solve this problem, the prefabricated columns can be lifted in sections to solve the lifting problem. However, in actual operation, the connection node between the two sections of prefabricated columns does not have a conventional operating surface, which makes lifting difficult and prevents the next step of grouting. Utility Model Content
[0003] In response to the problems existing in the above-mentioned prior art, the utility model provides a super-high prefabricated column segmented lifting and fixing device to solve the problem that the assembly connection nodes do not have a conventional operating surface during the prefabricated column segmented lifting process.
[0004] The utility model proposes a segmented hoisting and fixing device for super-high prefabricated columns, wherein the prefabricated columns include a lower segment prefabricated column and an upper segment prefabricated column, the upper segment prefabricated column is hoisted above the lower segment prefabricated column, and a splicing seam is formed between the upper segment prefabricated column and the lower segment prefabricated column; the fixing device includes embedded threads, four fixed angle steels, positioning pieces and tensioning pieces; each vertical corner of the prefabricated column is provided with a fixed angle steel; the four fixed angle steels are connected by the tensioning pieces, surrounding the splicing seam around the prefabricated column; the side wall of the lower segment prefabricated column is provided with four embedded threads, and the fixed angle steel is provided with a positioning groove that cooperates with the embedded threads; the positioning piece is connected with the embedded threads through the positioning groove.
[0005] Furthermore, the positioning groove is horizontally arranged at the corner of the fixed angle steel and extends toward both sides of the fixed angle steel.
[0006] Furthermore, the width of the positioning groove is greater than the diameter of the embedded thread opening.
[0007] Furthermore, the positioning member includes a positioning bolt; the positioning bolt passes through the positioning groove and is threadedly connected to the embedded thread, and the positioning bolt presses the fixed angle steel.
[0008] Furthermore, the positioning member further includes a bolt washer; the positioning bolt passes through the bolt washer, and the outer diameter of the bolt washer is greater than the width or height of the positioning groove.
[0009] Furthermore, wing plates are respectively provided on both sides of the fixed angle steel, and reserved screw holes are provided on the wing plates; the wing plates on adjacent sides of two adjacent fixed angle steels are fitted together, and the reserved screw holes on the fitted wing plates are aligned; the tensioning members pass through the aligned reserved screw holes to tie and fix the adjacent fixed angle steels.
[0010] Furthermore, the tensioning member includes a tensioning screw and a fastening nut threadedly connected to the tensioning screw; the tensioning screw is threadedly connected to the reserved screw hole.
[0011] Furthermore, the fixing device further includes a rubber pad; the rubber pad is arranged on the surface of the fixing angle steel opposite to the prefabricated column.
[0012] Furthermore, the rubber pad layer is also provided between the wing plates that are in contact with each other.
[0013] The beneficial effects of the present invention are as follows: the positioning piece is used to realize the preliminary positioning connection between the fixed angle steel and the lower prefabricated column, which is convenient for adjusting the position of the fixed angle steel; after the two adjacent fixed angle steels are fixed to the adjacent vertical edges of the lower prefabricated column by using the tension piece, the two fixed angle steels form positioning surfaces in three directions, which provide positioning reference and lifting limit for the hoisting of the upper prefabricated column, are beneficial to the hoisting construction, and improve the efficiency of the segmented hoisting of the super-high prefabricated column; after the upper prefabricated column and the lower prefabricated column are spliced, the other two fixed angle steels are used to surround the other two adjacent vertical edges, so that the four fixed angle steels form a stable structural system, which is surrounded by the prefabricated column, is convenient for grouting construction, and improves the splicing accuracy of the prefabricated column. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the exploded structure of the segmented lifting and fixing device for super-high prefabricated columns of the utility model;
[0015] Figure 2 This is a schematic diagram of the preliminary positioning structure of the two fixed angle steels of the utility model;
[0016] Figure 3 This is a schematic diagram of the preliminary docking structure of the prefabricated columns of the present utility model;
[0017] Figure 4 This is a structural diagram of the fixing device of the utility model after installation;
[0018] Figure 5 This is a cross-sectional schematic diagram of a fixed angle steel of the utility model.
[0019] In the figure: 1-embedded thread; 2-fixed angle steel; 201-positioning groove; 202-reserved screw hole; 203-rubber pad; 3-positioning bolt; 4-tension screw; 5-fastening nut; 6-bolt washer. DETAILED DESCRIPTION
[0020] The following is a further detailed description of this application with reference to the accompanying drawings and specific implementations:
[0021] like Figure 1-Figure 5 The illustrated device for the segmented hoisting and fixing of super-high prefabricated columns comprises a lower segment and an upper segment. The upper segment is hoisted above the lower segment, forming a joint between the upper and lower segments. The fixing device includes embedded threaded holes 1, four fixing angles 2, positioning members, and tensioning members. The positioning members include positioning bolts 3 and bolt washers 6. The tensioning members include tensioning screws 4 and fastening nuts 5.
[0022] A fixed angle steel 2 is provided at each of the four corners of the prefabricated column, and the positioning bolts 3 pass through the reserved positioning grooves 201 on the fixed angle steel 2 and are connected to the embedded threaded holes 1 of the lower prefabricated column to realize the preliminary positioning of the fixed angle steel 2; the four fixed angle steels 2 have the same size specifications, and wing plates perpendicular to the surface of the prefabricated column are provided on the left and right sides of the fixed angle steel 2. Reserved screw holes 202 for the tension screws 4 to pass through are provided on the wing plates. The adjacent two fixed angle steels 2 are connected by the tension screws 4, and the fixing nuts 5 are screwed into the two ends of the tension screws 4 to ensure that the fixed angle steel 2 and the prefabricated column fit tightly and are firmly fixed.
[0023] The steps for implementing the segmented hoisting of super-high prefabricated columns by the fixing device of this embodiment are as follows:
[0024] Step 1: During the prefabricated column production process, four embedded thread openings 1 are set at the same horizontal position 500 mm away from the top of the lower prefabricated column;
[0025] Step 2: When hoisting the prefabricated columns in sections on site, first place two fixed angle steels 2 against the two adjacent corners of the prefabricated columns. A rubber pad 203 is adhered to the inner side of the fixed angle steels 2 to ensure that they fit tightly against the surface of the prefabricated columns without leaving any gaps. Use positioning bolts 3 to pass through the positioning slots 201 reserved on the fixed angle steels 2 to perform preliminary positioning of the fixed angle steels 2.
[0026] Step 3: Use the tension screws 4 to pass through the reserved screw holes 202 on the fixed angle steels 2. Each tension screw 4 is provided with threads at both ends. Use two fixing nuts 5 to tighten them toward the middle to ensure a stable connection between adjacent fixed angle steels 2.
[0027] Step 4: Preliminarily align and position the upper prefabricated columns with the lower prefabricated columns;
[0028] Step 5: Repeat steps 2 and 3 to install and fix the remaining two fixed angle steels 2. At this time, the fixing device is completely installed;
[0029] Step 6: After the installation of the fixture is completed, start grouting construction. After the node concrete is poured and formed, the fixture can be removed and moved to other parts for use.
[0030] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be pointed out that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A device for the segmented hoisting and fixing of super-high prefabricated columns, wherein the prefabricated columns include lower prefabricated columns and upper prefabricated columns, wherein the upper prefabricated columns are hoisted above the lower prefabricated columns, and a joint is formed between the upper prefabricated columns and the lower prefabricated columns; characterized in that: The fixing device includes embedded threads, four fixed angle steels, positioning pieces and tensioning pieces; each vertical corner of the prefabricated column is provided with a fixed angle steel; the four fixed angle steels are connected by the tensioning pieces, surrounding the joint and surrounding the prefabricated column; the side wall of the lower section prefabricated column is provided with four embedded threads, and the fixed angle steel is provided with a positioning groove that cooperates with the embedded threads; the positioning piece is connected to the embedded threads through the positioning groove.
2. The device for segmented hoisting and fixing of super-high prefabricated columns according to claim 1, characterized in that: The positioning grooves are horizontally arranged at the corners of the fixed angle steel and extend toward both sides of the fixed angle steel.
3. The device for segmented hoisting and fixing of super-high prefabricated columns according to claim 2, characterized in that: The width of the positioning groove is greater than the diameter of the embedded thread opening.
4. The device for segmented hoisting and fixing of super-high prefabricated columns according to claim 1, characterized in that: The positioning member includes a positioning bolt; the positioning bolt passes through the positioning groove and is threadedly connected to the embedded thread, and the positioning bolt presses the fixed angle steel.
5. The device for segmented hoisting and fixing of super-high prefabricated columns according to claim 4, characterized in that: The positioning member further includes a bolt washer; the positioning bolt passes through the bolt washer, and the outer diameter of the bolt washer is greater than the width or height of the positioning groove.
6. The device for segmented hoisting and fixing of super-high prefabricated columns according to any one of claims 1 to 5, characterized in that: Wing plates are respectively provided on both sides of the fixed angle steel, and reserved screw holes are provided on the wing plates; the wing plates on adjacent sides of two adjacent fixed angle steels are fitted together, and the reserved screw holes on the fitted wing plates are aligned; the tensioning members pass through the aligned reserved screw holes to tie and fix the adjacent fixed angle steels.
7. The device for segmented hoisting and fixing of super-high prefabricated columns according to claim 6, characterized in that: The tensioning member includes a tensioning screw and a fastening nut threadedly connected to the tensioning screw; the tensioning screw is threadedly connected to the reserved screw hole.
8. The device for segmented hoisting and fixing of super-high prefabricated columns according to claim 6, characterized in that: The fixing device further comprises a rubber pad layer; the rubber pad layer is arranged on the surface of the fixing angle steel opposite to the prefabricated column.
9. The device for lifting and fixing super-high prefabricated columns in sections according to claim 8, characterized in that: The rubber pad layer is also arranged between the wing plates that are in contact with each other.