A construction method for a concrete composite floor slab

Abstract

The present invention relates to a construction method for a concrete composite floor slab applied in the field of building construction. By means of the coordinated setting of devices such as lifting tools and jigs, through the method of successively lifting, flipping and continuously installing multiple composite slabs, compared with the traditional single-piece hoisting operation, the number of hoisting times and the equipment switching time are significantly reduced, and the overall installation efficiency of the composite floor slab is improved. At the same time, the present invention is provided with a lifting tool structure with adjustable posture, which can control the angle of the composite slab during the flipping process, making it applicable to the installation requirements of structures with slopes or non-horizontal structural surfaces, such as the construction scenarios of components such as inclined roofs and ramp slabs, breaking through the limitations of the traditional method on the installation angle and expanding the applicable range. The method has a reasonable structural design and efficient construction operation, is applicable to the installation operations of composite slabs under various different building structural forms, and has good engineering practicability and popularization value.

Description

Technical Field

[0001] The present invention relates to a construction method, in particular to a construction method for a concrete composite floor slab applied to the field of building construction. Background Art

[0002] A composite floor slab is an assembled monolithic floor slab formed by laminating a precast slab and a cast-in-place reinforced concrete layer. The composite floor slab has good integrity, and the upper and lower surfaces of the slab are flat, which is convenient for the decoration of the finishing layer. It is suitable for high-rise buildings and large-span buildings with relatively high requirements for overall stiffness.

[0003] The Chinese patent application with the authorization announcement number CN106088431B discloses a composite floor slab and a hoisting construction method for the composite floor slab. Multiple composite floor slabs are hoisted to the building surface for installation at one time, which greatly improves the hoisting efficiency. However, the composite floor slab always remains in a horizontal state during the hoisting or installation process. When the angle of the building surface changes, rapid and effective installation cannot be achieved. Therefore, further improvement is needed. Summary of the Invention

[0004] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is that the composite floor slab always remains in a horizontal state during the hoisting or installation process. When the angle of the building surface changes, rapid and effective installation cannot be achieved. Therefore, further improvement is needed.

[0005] To solve the above problems, the present invention provides a construction method for a concrete composite floor slab, including the following steps:

[0006] S1. A plurality of composite slabs are stacked and stored, and the plurality of composite slabs are sequentially set as X1, X2, X3... Xn from top to bottom;

[0007] S2. The two ends of a sling are respectively connected to the two ends of X1, and X1 is horizontally lifted. Then, one end of the sling releases one end of X1, and the other end of the sling remains connected to the other end of X1, so that X1 is in a vertical state;

[0008] S3. One end of the sling and the bottom end of X1 are respectively connected to the two ends of X2, and X2 is horizontally lifted. Then, one end of the sling releases one end of X2, and the other end of X2 remains connected to X1, so that X2 is in a vertical state;

[0009] S4. According to the steps in S2 - S3, until X1, X2, X3... Xn are lifted to a vertical state;

[0010] S5. One end of the sling is connected to the bottom end of Xn, and Xn is pulled to rotate around the connection point of Xn and X(n - 1) until the angle of Xn is parallel to the building surface. Move Xn and place it on the building surface, and then disconnect it from one end of the sling and one end of X(n - 1) to complete the installation of Xn;

[0011] S6. Install Xn, X(n - 1),..., X1 in sequence according to step S5.

[0012] As a further improvement of the present application, when both ends of the sling are respectively connected to both ends of X1, and when one end of the sling and the bottom end of X1 are respectively connected to both ends of X2, they are all connected through clamps.

[0013] As a further improvement of the present application, the clamp includes a fixed plate, a moving plate is slidably connected to the fixed plate, a vertical plate is fixedly connected to the top end of the moving plate, a main lead screw is rotatably connected to the side wall of the vertical plate, a support plate is fixedly connected to the top end of the fixed plate, one end of the main lead screw is threadedly connected through the middle of the support plate, and chucks are fixedly connected to one end of both the fixed plate and the moving plate.

[0014] As a further improvement of the present application, a secondary lead screw is rotatably connected through the middle of the top end of the chuck, a square frame is slidably connected to the inner wall of the chuck, a plurality of insertion rods are fixedly connected to the bottom end of the square frame, and a retracting rod is fixedly connected between the bottom ends of the plurality of insertion rods.

[0015] As another improvement of the present application, the bottom end of the secondary lead screw is threadedly connected through the middle of the top end of the square frame, a buckle ring is fixedly connected to the side wall of the chuck, and a plurality of steel bars are arranged at the edge of the laminated plate.

[0016] As a supplementary improvement of the present application, the sling includes an upper plate and a lower plate, a plurality of connecting rods are fixedly connected between the upper plate and the lower plate, a driving machine is fixedly connected to the top end of the lower plate, a reel is fixedly connected to the output end of the driving machine, a steel wire is wound on the outer wall of the reel, one end of the steel wire is fixedly connected to a leveling hook, and a fixed hook is fixedly connected to the bottom end of the lower plate.

[0017] As a supplementary improvement of the present application, when the bottom end of X1 is connected to one end of X2, and when the bottom end of X2 is connected to one end of X3, they are all connected through an intermediate rope. The intermediate rope includes a tension rope, and lock heads are fixedly connected to both ends of the tension rope.

[0018] As another improvement of the present application, three distance sensors are fixedly connected to the bottom end of the lower plate. The three distance sensors are not on the same straight line, and the distance sensors are electrically connected to the driving machine.

[0019] In summary, through the cooperation control of the leveling hook and the driving machine in the sling structure of the present invention, the attitude of the laminated plate can be flexibly adjusted during the hoisting process. It can not only achieve horizontal hoisting and installation, but also be applicable to the installation requirements of components with slopes or non-horizontal planes, such as pitched roofs, ramp boards or special structure connection parts. This method enhances the adaptability of the hoisting method to different structural forms, and can still ensure the precise positioning and installation of components in complex or non-standard installation scenarios, improving the universality and practical value of the construction plan. Description of the Drawings

[0020] Figure 1 This is the state diagram when the two ends of the sling in the first and second embodiments of the present application are respectively connected to the two ends of X1;

[0021] Figure 2 This is the state diagram when the sling in the first embodiment of the present application horizontally hoists X1;

[0022] Figure 3 This is the state diagram when one end of the sling in the first embodiment of the present application releases one end of X1, and the other end of the sling remains connected to the other end of X1, making X1 in a vertical state;

[0023] Figure 4 This is the state diagram when one end of the sling and the bottom end of X1 in the first embodiment of the present application are respectively connected to the two ends of X2;

[0024] Figure 5 This is the state diagram when X2 is horizontally hoisted in the first embodiment of the present application;

[0025] Figure 6 This is the front view of the fixture in the second embodiment of the present application;

[0026] Figure 7 This is the front sectional view of the chuck in the second embodiment of the present application;

[0027] Figure 8 This is the front view of the sling in the second embodiment of the present application;

[0028] Figure 9 This is the front view of the intermediate rope in the second embodiment of the present application;

[0029] Figure 10 This is the perspective view of the fixture in the second embodiment of the present application;

[0030] Figure 11 This is the perspective view when the insertion rod is connected to the steel bar in the second embodiment of the present application;

[0031] Figure 12 This is the flow chart of the usage method in the first and second embodiments of the present application.

[0032] Explanation of the reference numerals in the figure:

[0033] 1. Laminated slab; 101. Steel bar; 2. Fixture; 201. Fixed plate; 202. Movable plate; 203. Vertical plate; 204. Main lead screw; 205. Support plate; 3. Hoisting tool; 301. Upper plate; 302. Lower plate; 303. Connecting rod; 304. Steel wire; 305. Driving machine; 306. Fixed hook; 307. Reel; 308. Leveling hook; 4. Chuck; 401. Auxiliary lead screw; 402. Square frame; 403. Inserting rod; 404. Retracting rod; 405. Buckle; 5. Intermediate rope; 501. Tension rope; 502. Lock head; 6. Distance sensor. Specific embodiments

[0034] The following describes two embodiments of the present application in detail with reference to the accompanying drawings.

[0035] The first embodiment:

[0036] Figures 1 - 5 and Figure 12 A construction method for a concrete laminated floor slab is shown, including the following steps:

[0037] S1. A plurality of laminated slabs 1 are stacked and stored, and the plurality of laminated slabs 1 are sequentially set as X1, X2, X3... Xn from top to bottom;

[0038] S2. The two ends of the hoisting tool 3 are respectively connected to the two ends of X1, X1 is horizontally lifted, then one end of the hoisting tool 3 releases one end of X1, and the other end of the hoisting tool 3 remains connected to the other end of X1, so that X1 is in a vertical state;

[0039] S3. One end of the hoisting tool 3 and the bottom end of X1 are respectively connected to the two ends of X2, X2 is horizontally lifted, then one end of the hoisting tool 3 releases one end of X2, and the other end of X2 is connected to X1, so that X2 is in a vertical state;

[0040] S4. According to the steps in S2 - S3 until X1, X2, X3... Xn are lifted to a vertical state;

[0041] S5. One end of the hoisting tool 3 is connected to the bottom end of Xn, and Xn is pulled to rotate around the connection point of Xn and X(n - 1) until the angle of Xn is parallel to the building surface, move Xn to the building surface, and then disconnect from one end of the hoisting tool 3 and one end of X(n - 1) to complete the installation of Xn;

[0042] S6. Install Xn, X(n - 1)... X1 in sequence according to step S5.

[0043] In the steps of S2 - S3, X1, X2, X3... Xn are hoisted horizontally and then vertically in sequence, preventing multiple laminated plates 1 from rubbing against each other during the vertical process. In the step of S5, X1, X2, X3... Xn are sequentially flipped from the vertical state to the required angle for installation.

[0044] With the above settings, multiple laminated plates 1 can be hoisted and installed simultaneously. Compared with the single - hoisting method that can only install one laminated plate 1 at a time, the construction efficiency of the laminated floor slab is greatly improved. At the same time, during the hoisting process, the installation angle of the laminated plate 1 can be adjusted. This method enhances the adaptability of the hoisting method to different structural forms and can still ensure the precise positioning and installation of components in complex or non - standard installation scenarios, improving the universality and practical value of the construction plan.

[0045] The second implementation method:

[0046] Figure 1 and Figures 6 - 12 A construction method of a concrete laminated floor slab is shown. Different from the first implementation method, when both ends of the lifting tool 3 are connected to both ends of X1 respectively, and when one end of the lifting tool 3 and the bottom end of X1 are connected to both ends of X2 respectively, they are all connected through the fixture 2. The fixture 2 includes a fixed plate 201, on which a movable plate 202 is slidably connected. The top end of the movable plate 202 is fixedly connected with a vertical plate 203. A main lead screw 204 is rotatably connected to the side wall of the vertical plate 203. The top end of the fixed plate 201 is fixedly connected with a support plate 205. One end of the main lead screw 204 is threadedly connected through the middle of the support plate 205. One end of both the fixed plate 201 and the movable plate 202 is fixedly connected with a chuck 4.

[0047] With the above settings, rotating the main lead screw 204 can pull the movable plate 202 towards the fixed plate 201 through the vertical plate 203, driving the chuck 4 to clamp the laminated plate 1, enabling the two ends of the laminated plate 1 to be connected. Similarly, when connecting each laminated plate 1, a fixture 2 needs to be installed on the laminated plate 1 for hoisting connection.

[0048] The middle part of the top end of the chuck 4 is rotatably connected through a secondary lead screw 401. A square frame 402 is slidably connected to the inner wall of the chuck 4. The bottom end of the square frame 402 is fixedly connected with a plurality of insertion rods 403. A receiving rod 404 is fixedly connected between the bottom ends of the plurality of insertion rods 403. The bottom end of the secondary lead screw 401 is threadedly connected through the middle of the top end of the square frame 402. A snap ring 405 is fixedly connected to the side wall of the chuck 4. A plurality of steel bars 101 are arranged on the edge of the laminated plate 1.

[0049] With the above settings, after the chuck 4 holds the laminated board 1, multiple insertion rods 403 and multiple steel bars 101 cross each other, and the rod receiver 404 is located below the steel bar 101. At this time, the rotating secondary lead screw 401 drives the square box 402 to move upward, so that the rod receiver 404 and the insertion rod 403 are locked with the steel bar 101, clamping the laminated board 1 more comprehensively and preventing the laminated board 1 from detaching from the fixture 2 during hoisting.

[0050] The lifting tool 3 includes an upper plate 301 and a lower plate 302. A plurality of connecting rods 303 are fixedly connected between the upper plate 301 and the lower plate 302. A driving machine 305 is fixedly connected to the top end of the lower plate 302. The output end of the driving machine 305 is fixedly connected with a reel 307. A steel wire 304 is wound around the outer wall of the reel 307. One end of the steel wire 304 is fixedly connected with a leveling hook 308, and a fixed hook 306 is fixedly connected to the bottom end of the lower plate 302.

[0051] When the two ends of the lifting tool 3 are respectively connected to the two ends of X1, the fixed hook 306 and the leveling hook 308 are respectively connected to the buckle rings 405 on the two chucks 4, and then X1 can be horizontally lifted. And by starting the driving machine 305 to rotate forward or backward, the height of the leveling hook 308 can be adjusted to keep X1 in a horizontal or vertical state.

[0052] When the bottom end of X1 is connected to one end of X2 and when the bottom end of X2 is connected to one end of X3, they are both connected by an intermediate rope 5. The intermediate rope 5 includes a tension rope 501, and both ends of the tension rope 501 are fixedly connected with lock heads 502, and the lock heads 502 are used to connect with the buckle rings 405.

[0053] Three distance sensors 6 are fixedly connected to the bottom end of the lower plate 302. The three distance sensors 6 are not on the same straight line, and the distance sensors 6 are electrically connected to the driving machine 305.

[0054] With the above settings, after the driving machine 305 drives the laminated board 1 to be adjusted to a horizontal state, it can play a role in leveling and monitoring the laminated board 1.

[0055] Combined with the current actual requirements, the above implementation manner adopted in this application, the protection scope is not limited to this. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A construction method for a concrete composite floor slab, characterized in that: It includes the following steps: S1. Multiple laminated plates (1) are stacked and stored, and the multiple laminated plates (1) are sequentially set as X1, X2, X3... Xn from top to bottom; S2. The two ends of the lifting tool (3) are respectively connected to the two ends of X1, and X1 is horizontally lifted. Then, one end of the lifting tool (3) releases one end of X1, and the other end of the lifting tool (3) remains connected to the other end of X1, making X1 in a vertical state; S3. One end of the lifting tool (3) and the bottom end of X1 are respectively connected to the two ends of X2, and X2 is horizontally lifted. Then, one end of the lifting tool (3) releases one end of X2, and the other end of X2 remains connected to X1, making X2 in a vertical state; S4. According to the steps in S2 - S3, until X1, X2, X3... Xn are lifted to a vertical state; S5. One end of the lifting tool (3) is connected to the bottom end of Xn, and Xn is pulled to rotate around the connection point of Xn and X(n - 1) until the angle of Xn is parallel to the building surface. Move Xn and place it on the building surface, and then disconnect it from one end of the lifting tool (3) and one end of X(n - 1) to complete the installation of Xn; S6. Install Xn, X(n - 1)... X1 in sequence according to step S5.

2. The construction method of a concrete composite floor slab according to claim 1, characterized in that: When the two ends of the lifting tool (3) are respectively connected to the two ends of X1, and one end of the lifting tool (3) and the bottom end of X1 are respectively connected to the two ends of X2, they are all connected through the fixture (2).

3. A construction method of a concrete composite floor slab according to claim 2, characterized in that: The fixture (2) includes a fixed plate (201), a moving plate (202) is slidably connected to the fixed plate (201), a vertical plate (203) is fixedly connected to the top end of the moving plate (202), a main lead screw (204) is rotatably connected to the side wall of the vertical plate (203), a support plate (205) is fixedly connected to the top end of the fixed plate (201), one end of the main lead screw (204) is threadedly connected through the middle of the support plate (205), and a chuck (4) is fixedly connected to one end of each of the fixed plate (201) and the moving plate (202).

4. A construction method of a concrete composite floor slab according to claim 3, characterized in that: A secondary lead screw (401) is rotatably connected through the middle of the top end of the chuck (4), a square frame (402) is slidably connected to the inner wall of the chuck (4), a plurality of insertion rods (403) are fixedly connected to the bottom end of the square frame (402), and a retracting rod (404) is fixedly connected between the bottom ends of the plurality of insertion rods (403).

5. A construction method of a concrete composite floor slab according to claim 4, characterized in that: The bottom end of the secondary lead screw (401) is threadedly connected through the middle of the top end of the square frame (402), a buckle ring (405) is fixedly connected to the side wall of the chuck (4), and a plurality of steel bars (101) are arranged on the edge of the laminated plate (1).

6. A construction method of a concrete composite floor slab according to claim 1, characterized in that: The lifting tool (3) includes an upper plate (301) and a lower plate (302), a plurality of connecting rods (303) are fixedly connected between the upper plate (301) and the lower plate (302), a driving machine (305) is fixedly connected to the top end of the lower plate (302), a reel (307) is fixedly connected to the output end of the driving machine (305), a steel wire (304) is wound on the outer wall of the reel (307), one end of the steel wire (304) is fixedly connected to a leveling hook (308), and a fixed hook (306) is fixedly connected to the bottom end of the lower plate (302).

7. A construction method of a concrete composite floor slab according to claim 1, characterized in that: When the bottom end of X1 is connected to one end of X2 and when the bottom end of X2 is connected to one end of X3, both are connected through an intermediate rope (5). The intermediate rope (5) includes a tension rope (501), and both ends of the tension rope (501) are fixedly connected with lock heads (502).

8. A construction method of a concrete composite floor slab according to claim 6, characterized in that: Three distance sensors (6) are fixedly connected to the bottom end of the lower plate (302). The three distance sensors (6) are not on the same straight line, and the distance sensors (6) are electrically connected to the driving machine (305).

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