Construction method of concrete composite floor slab
Technical Field
The invention relates to a construction method, in particular to a construction method of a concrete composite floor slab, which is applied to the field of building construction.
Background
The composite floor slab is an assembled integral floor slab formed by superposing precast slabs and cast-in-situ reinforced concrete layers, has good integrity, has flat upper and lower surfaces, is convenient for decoration of the finish layer, and is suitable for high-rise buildings and large-bay buildings with high overall rigidity requirements.
The Chinese patent application with the authorized bulletin number of CN106088431B discloses a composite floor slab and a composite floor slab hoisting construction method, and a plurality of composite floor slabs are hoisted to a building surface for installation at one time, so that the hoisting efficiency is greatly improved, but the composite floor slab always keeps a horizontal state in the hoisting or installation process, and when the angle of the building surface is changed, quick and effective installation cannot be realized, so that further improvement is needed.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the technical problem that the laminated floor slab always keeps a horizontal state in the process of hoisting or installation, and when the angle of a building surface is changed, quick and effective installation cannot be realized, so that further improvement is needed.
In order to solve the problems, the invention provides a construction method of a concrete composite floor slab, which comprises the following steps:
s1, stacking and storing a plurality of superimposed sheets, wherein the superimposed sheets are sequentially arranged as X1, X2 and X3.;
s2, two ends of a lifting appliance are respectively connected with two ends of X1, the X1 is lifted horizontally, one end of the lifting appliance is released from one end of the X1, and the other end of the lifting appliance is kept connected with the other end of the X1, so that the X1 is in a vertical state;
S3, connecting one end of a lifting appliance and the bottom end of X1 with two ends of X2 respectively, lifting X2 horizontally, releasing one end of X2 from one end of the lifting appliance, and keeping the other end of X2 connected with X1 to enable X2 to be in a vertical state;
s4, lifting the X1, the X2 and the X3. according to the steps in the S2-S3 to be in a vertical state;
s5, one end of the lifting appliance is connected with the bottom end of the Xn, the Xn is pulled to rotate around the connection point of the Xn and the X (n-1) until the angle of the Xn is parallel to the building surface, the Xn is moved to be placed on the building surface, and then the Xn is disconnected with one end of the lifting appliance and one end of the X (n-1), so that the installation of the Xn is completed;
and S6, sequentially installing Xn and X (n-1) & X1 according to the step S5.
As a further improvement of the application, both ends of the lifting appliance are respectively connected with both ends of the X1, and one end of the lifting appliance and the bottom end of the X1 are respectively connected with both ends of the X2 through clamps.
As a still further improvement of the application, the clamp comprises a fixed plate, a movable plate is connected on the fixed plate in a sliding manner, a vertical plate is fixedly connected to the top end of the movable plate, a main screw rod is connected to the side wall of the vertical plate in a rotating manner, a supporting plate is fixedly connected to the top end of the fixed plate, one end of the main screw rod is connected with the middle part of the supporting plate in a penetrating threaded manner, and chucks are fixedly connected to one ends of the fixed plate and the movable plate.
As a further improvement of the application, the middle part of the top end of the chuck is penetrated and rotationally connected with a secondary screw rod, the inner wall of the chuck is slidably connected with a square frame, the bottom end of the square frame is fixedly connected with a plurality of inserted bars, and a collecting rod is fixedly connected between the bottom ends of the inserted bars.
As a further improvement of the application, the bottom end of the auxiliary screw rod is connected with the middle part of the top end of the square frame through threads, the side wall of the clamping head is fixedly connected with a retaining ring, and the edge of the superimposed sheet is provided with a plurality of reinforcing ribs.
As a further improvement supplement of the application, the lifting appliance comprises an upper plate and a lower plate, a plurality of connecting rods are fixedly connected between the upper plate and the lower plate, the top end of the lower plate is fixedly connected with a driving machine, the output end of the driving machine is fixedly connected with a reel, the outer wall of the reel is wound with a steel wire, one end of the steel wire is fixedly connected with a leveling hook, and the bottom end of the lower plate is fixedly connected with a fixed hook.
As a further improvement of the application, when the bottom end of the X1 is connected with one end of the X2, and when the bottom end of the X2 is connected with one end of the X3, the bottom end of the X2 is connected with one end of the X3 through an intermediate rope, the intermediate rope comprises a tension rope, and both ends of the tension rope are fixedly connected with locking heads.
As a further improvement of the application, the bottom end of the lower plate is fixedly connected with three distance sensors, the three distance sensors are not on the same straight line, and the distance sensors are electrically connected with the driving machine.
In summary, the leveling hooks and the driving machine in the lifting appliance structure are cooperatively controlled, so that the gesture of the laminated slab can be flexibly adjusted in the lifting process, not only can horizontal lifting and installation be realized, but also the method is suitable for component installation requirements with gradient or non-horizontal plane, such as sloping roofs, chute plates or special structure connection parts, the method enhances the adaptability of lifting modes to different structural forms, and can still ensure the accurate positioning and installation of components in complex or non-standard installation scenes, thereby improving the universality and practical value of a construction scheme.
Drawings
Fig. 1 is a state diagram of the hanger according to the first and second embodiments of the present application when two ends of the hanger are connected to two ends of X1, respectively;
FIG. 2 is a state diagram of the spreader according to the first embodiment of the present application when the spreader horizontally lifts X1;
Fig. 3 is a state diagram showing a state in which one end of the hanger is released from one end of X1, and the other end of the hanger is connected to the other end of X1, so that X1 is in a vertical state in the first embodiment of the present application;
Fig. 4 is a state diagram of the first embodiment of the present application, in which one end of the hanger and the bottom end of the X1 are connected to two ends of the X2, respectively;
FIG. 5 is a state diagram of the first embodiment of the present application when X2 is lifted horizontally;
FIG. 6 is a front view of a clamp according to a second embodiment of the present application;
FIG. 7 is an elevational cross-section of a collet in a second embodiment of the application;
FIG. 8 is a front view of a spreader in a second embodiment of the present application;
FIG. 9 is a front view of a second embodiment of the present application at an intermediate rope;
FIG. 10 is a perspective view of a clamp according to a second embodiment of the present application;
fig. 11 is a perspective view of a second embodiment of the application in which the rod is connected to the reinforcing bars;
Fig. 12 is a flowchart of the usage method in the first and second embodiments of the present application.
The reference numerals in the figures illustrate:
1. Superimposed sheet, 101, reinforcing bars, 2, clamps, 201, fixed plates, 202, movable plates, 203, vertical plates, 204, main screw rods, 205, supporting plates, 3, lifting tools, 301, upper plates, 302, lower plates, 303, connecting rods, 304, steel wires, 305, driving machines, 306, fixed hooks, 307, reels, 308, leveling hooks, 4, chucks, 401, auxiliary screw rods, 402, boxes, 403, inserting rods, 404, collecting rods, 405, buckles, 5, intermediate ropes, 501, tension ropes, 502, locking heads, 6 and distance sensors.
Detailed Description
Two embodiments of the present application will be described in detail with reference to the accompanying drawings.
First embodiment:
Fig. 1-5 and 12 show a method of constructing a concrete composite floor slab, comprising the steps of:
S1, stacking and storing a plurality of superimposed sheets 1, wherein the superimposed sheets 1 are sequentially arranged as X1, X2 and X3.;
s2, two ends of a lifting tool 3 are respectively connected with two ends of X1, the X1 is lifted horizontally, one end of the lifting tool 3 is released from one end of the X1, and the other end of the lifting tool 3 is kept connected with the other end of the X1, so that the X1 is in a vertical state;
S3, connecting one end of a lifting tool 3 and the bottom end of X1 with two ends of X2 respectively, lifting X2 horizontally, releasing one end of X2 from one end of the lifting tool 3, and keeping the other end of X2 connected with X1 to enable X2 to be in a vertical state;
s4, lifting the X1, the X2 and the X3. according to the steps in the S2-S3 to be in a vertical state;
S5, one end of the lifting appliance 3 is connected with the bottom end of the Xn, the Xn is pulled to rotate around the connection point of the Xn and the X (n-1) until the angle of the Xn is parallel to the building surface, the Xn is moved to be placed on the building surface, and then the Xn is disconnected with one end of the lifting appliance 3 and one end of the X (n-1), so that the installation of the Xn is completed;
and S6, sequentially installing Xn and X (n-1) & X1 according to the step S5.
In the step of S2-S3, X1, X2 and X3.. Xn are sequentially and horizontally and vertically hoisted, so that a plurality of superimposed sheets 1 are prevented from being scratched in the vertical process, and in the step of S5, X1, X2 and X3.. Xn are sequentially turned from the vertical state to a required angle for installation.
Above-mentioned setting can hoist and mount polylith superimposed sheet 1 simultaneously and install, compares with single hoist and mount can only install a superimposed sheet 1, has improved superimposed sheet's efficiency of construction greatly, simultaneously at the in-process of hoist and mount, can adjust superimposed sheet 1's installation angle, this mode has strengthened the adaptability of hoist and mount mode to different structural style, still can guarantee the accurate positioning and the installation of component under complicated or nonstandard installation scene, has promoted construction scheme's universality and practical value.
Second embodiment:
Fig. 1 and fig. 6-12 show a construction method of a concrete composite floor slab, unlike the first embodiment, two ends of a lifting appliance 3 are respectively connected with two ends of an X1, one end of the lifting appliance 3 and the bottom end of the X1 are respectively connected with two ends of an X2 through a clamp 2, the clamp 2 comprises a fixed plate 201, a movable plate 202 is slidingly connected on the fixed plate 201, a vertical plate 203 is fixedly connected to the top end of the movable plate 202, a main screw rod 204 is rotatably connected to the side wall of the vertical plate 203, a supporting plate 205 is fixedly connected to the top end of the fixed plate 201, one end of the main screw rod 204 is in threaded connection with the middle of the supporting plate 205 in a penetrating manner, and clamping heads 4 are fixedly connected to one ends of the fixed plate 201 and the movable plate 202.
Through the arrangement, the rotating main screw rod 204 can move to the direction of the fixed plate 201 by pulling the movable plate 202 through the vertical plate 203, and the clamping head 4 is driven to clamp the laminated plate 1, so that two ends of the laminated plate 1 can be connected, and similarly, when each laminated plate 1 is connected, the clamp 2 is required to be installed on the laminated plate 1 for hoisting connection.
The middle part at the top of chuck 4 runs through and rotates and be connected with vice lead screw 401, and the inner wall sliding connection of chuck 4 has square frame 402, and square frame 402's bottom fixedly connected with a plurality of inserted bars 403, fixedly connected with receipts pole 404 between a plurality of inserted bars 403's the bottom, and the middle part at the top of vice lead screw 401 runs through threaded connection, and chuck 4's lateral wall fixedly connected with buckle 405, superimposed sheet 1's edge is provided with many steel bars 101.
Through the arrangement, after the clamping head 4 clamps the laminated plate 1, the inserting rods 403 and the reinforcing bars 101 are crossed, the collecting rods 404 are positioned on the lower side of the reinforcing bars 101, at this time, the rotating pair screw rod 401 drives the square frame 402 to move upwards, so that the collecting rods 404 and the inserting rods 403 are locked with the reinforcing bars 101, the laminated plate 1 is clamped more comprehensively, and the laminated plate 1 is prevented from being separated from the clamp 2 when being hoisted.
The lifting appliance 3 comprises 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 with a leveling hook 308, and a fixed hook 306 is fixedly connected to the bottom end of the lower plate 302.
When the two ends of the lifting appliance 3 are respectively connected with the two ends of the X1, the fixed hooks 306 and the leveling hooks 308 are respectively connected with the buckles 405 on the two chucks 4, so that the X1 can be lifted horizontally, and the height of the leveling hooks 308 can be adjusted by starting the driving machine 305 to rotate forward or reversely, so that the X1 is kept in a horizontal or vertical state.
When the bottom of X1 is connected with one end of X2, when the bottom of X2 is connected with one end of X3, all be connected through intermediate rope 5, intermediate rope 5 includes pulling force rope 501, the equal fixedly connected with tapered end 502 in both ends of pulling force rope 501, tapered end 502 is used for being connected with buckle 405.
The bottom end of the lower plate 302 is fixedly connected with three distance sensors 6, the three distance sensors 6 are not on the same straight line, and the distance sensors 6 are electrically connected with the driver 305.
Through the arrangement, after the driving machine 305 drives the laminated slab 1 to be adjusted to be in the horizontal state, the laminated slab 1 can be subjected to leveling monitoring.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.