CN211949120U - Mounting structure of full precast floor slab - Google Patents

Mounting structure of full precast floor slab Download PDF

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Publication number
CN211949120U
CN211949120U CN202020517428.4U CN202020517428U CN211949120U CN 211949120 U CN211949120 U CN 211949120U CN 202020517428 U CN202020517428 U CN 202020517428U CN 211949120 U CN211949120 U CN 211949120U
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China
Prior art keywords
mounting
floor slab
prefabricated
holes
slab
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CN202020517428.4U
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Chinese (zh)
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王�琦
冯波
杨强
阳昌辉
李静
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Cmcc Investment Shanzhu Chengdu Prefabricated Building Technology Development Co ltd
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Cmcc Investment Shanzhu Chengdu Prefabricated Building Technology Development Co ltd
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Abstract

The utility model discloses an installation structure of a full precast floor slab, which comprises a supporting structure, a precast slab, a first installation hole, a second installation hole and a stable hole; the first mounting holes and the second mounting holes are respectively formed in two side walls in the width direction of the prefabricated slab, the stabilizing holes are uniformly formed in the prefabricated slab, the supporting structure is arranged at the bottom of the prefabricated slab, and the supporting structure is connected with the stabilizing holes; the full-prefabricated floor slab has strong out-of-plane rigidity and strength, the floor slab has enough supporting length on the beam during installation, temporary support is not required to be arranged during field installation, construction cost is reduced, construction speed is increased, the conditions that the floor slab slides off and cracks in the construction process and the like are avoided, and construction safety factor is high.

Description

Mounting structure of full precast floor slab
Technical Field
The utility model relates to a construction field especially relates to a mounting structure of full precast floor slab.
Background
At present, the floor slab in the assembly type concrete building structure is generally made of concrete laminated slabs, the method mainly comprises the steps of prefabricating the lower part of the floor slab in a factory, extending reinforcing steel bars outwards at the periphery, taking the laminated floor slab as a template during field installation, and pouring upper concrete. Moreover, in order to match the connection of the floor slab, it is usually necessary to reserve a laminated layer on the precast beam, the precast shear wall, and the like, and extend a steel bar above the member.
Because a large amount of overhanging reinforcing steel bars are needed, holes need to be reserved on the template when the prefabricated part is produced, and the production of the part is very inconvenient. In addition, the cast amount of concrete on the site is large when the member is installed, and the construction speed on the site is reduced. On the other hand, because only the lower part of the composite floor slab is prefabricated in a factory, the thickness of the precast concrete slab is lower, the rigidity and the strength of the precast floor slab are lower, and the precast floor slab is easy to crack when the components are hoisted. To solve this problem, it is usually necessary to add truss reinforcement above the slab to improve the rigidity and strength of the precast floor slab, but this increases the steel content of the precast floor slab, thereby increasing the cost of the floor slab.
The whole prefabricated floor slab is produced in a factory, and the rigidity and the strength of the floor slab are high, so that truss steel bars do not need to be added. However, the application of the fully-prefabricated floor slab is not wide at present, the main reason is that a simple and reliable connection mode is lacked, the current method is that steel bars are extended outwards from the periphery of the slab, meanwhile, a superposed layer is reserved on the upper portion of a beam, the steel bars extended outwards from the floor slab are extended into the superposed layer on the upper portion of the beam during field installation, and then concrete is poured. The method can not avoid the defect that the periphery of the floor slab needs the overhanging reinforcing steel bars, and simultaneously has the risk of insufficient anchoring of the reinforcing steel bars of the floor slab.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a mounting structure of full precast floor slab. The connecting nodes are arranged inside the precast slab and on the side wall of the precast slab, so that the components are stably connected, the precast concrete components do not need to extend outwards, the cast-in-place quantity is small, and the construction speed is high.
The scheme is realized as follows:
a mounting structure of a full precast floor slab comprises a supporting structure, a precast slab, a first mounting hole, a second mounting hole and a stabilizing hole; the first mounting holes and the second mounting holes are respectively formed in two side walls in the width direction of the prefabricated slab, the stabilizing holes are uniformly formed in the prefabricated slab, the supporting structure is arranged at the bottom of the prefabricated slab, and the supporting structure is connected with the stabilizing holes.
Preferably, the first mounting holes and the second mounting holes are alternately arranged on the same side wall of the same prefabricated plate, and the first mounting holes and the second mounting holes alternately arranged on the same side wall of the same prefabricated plate are arranged at different height positions.
Preferably, the first mounting hole and the second mounting hole are arranged in a plurality of numbers on the opposite side walls of the same prefabricated plate, and the height positions of the first mounting hole and the second mounting hole which are matched and arranged on the opposite side walls of the same prefabricated plate are arranged in the same manner.
Preferably, the supporting structure comprises a precast concrete beam and embedded steel bars, one end of each embedded steel bar is arranged in the precast concrete beam, the other end of each embedded steel bar protrudes out of the upper surface of the precast concrete beam, and threads are arranged at one end of each embedded steel bar protruding out of the precast concrete beam.
Preferably, the plurality of the stabilizing holes are arranged on the prefabricated slab, the stabilizing holes penetrate through the prefabricated slab, and the positions of the stabilizing holes are matched with the positions of the supporting structures.
Preferably, the rear ends of the first mounting hole and the second mounting hole are provided with mounting grooves, and a screw rod is arranged between the first mounting hole and the second mounting hole.
Preferably, the side walls of the prefabricated plates are stepped, and the first mounting hole and the second mounting hole of the prefabricated plate on the same side are located on different stepped positions.
Preferably, the embedded steel bars are arranged at one end of the precast concrete beam to form a hook-shaped structure.
Preferably, the hole shape of the stabilizing hole is an upper circle and a lower circle; set up the chamfer at the floor side, make things convenient for later stage water repellent.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the full-prefabricated floor slab has strong out-of-plane rigidity and strength, the floor slab has enough supporting length on the beam during installation, temporary support is not required to be arranged during field installation, construction cost is reduced, construction speed is increased, the conditions that the floor slab slides off and cracks in the construction process and the like are avoided, and construction safety factor is high.
2. The floor slab is reasonable in stress and clear in force transmission. After the floor slab is connected, the upper and lower bolts at the rabbet position and the floor slab concrete act together to provide bending resistance. The pre-buried screwed reinforcing bar of taking in the precast beam can restrict the relative displacement of floor and precast beam. After the whole floor slab is connected, the seat has the capacity of bearing bending moment, and a continuous floor slab system can be formed, so that the reinforcement amount and the deformation amount of the floor slab are reduced.
3. The floor slab and the precast beam do not need to extend out of the reinforcing steel bars, the construction difficulty is reduced, concrete is only poured on the site at the positions of the rectangular grooves, the pouring amount of the concrete on the site is small, and the construction speed on the site is further improved.
Drawings
FIG. 1 is a schematic view of a partial cross-sectional structure of the mounting structure of the present invention;
fig. 2 is a schematic top view of the whole structure of the present invention;
FIG. 3 is a detailed view of the close assembly between the prefabricated panels of the present invention;
in the figure: 1. a support structure; 2. prefabricating a slab; 3. a first mounting hole; 4. a second mounting hole; 5. a stabilizing hole; 6. a screw; 7. mounting grooves; 11. prefabricating a concrete beam; 12. and (6) embedding reinforcing steel bars.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1
Referring to fig. 1-3, the present invention provides a technical solution:
a mounting structure of a full precast floor slab comprises a supporting structure 1, a precast slab 2, a first mounting hole 3, a second mounting hole 4 and a stabilizing hole 5; the first mounting holes 3 and the second mounting holes 4 are respectively arranged on two side walls of the prefabricated slab 2 in the width direction, the stabilizing holes 5 are uniformly arranged on the prefabricated slab 2, the supporting structure 1 is arranged at the bottom of the prefabricated slab 2, and the supporting structure 1 is connected with the stabilizing holes 5.
Through bearing structure 1 and firm connection of firm hole 5, make the firm installation of full precast floor on bearing structure 1, adjacent full precast floor carries out fixed connection through the first mounting hole 3 and the second mounting hole 4 that correspond on the different full precast floor on its adjacent position, makes adjacent full precast floor carry out firm connection, guarantees whole full precast floor mounting structure's steadiness.
Through this scheme, can make full precast floor self possess stronger plane rigidity and intensity outward, the floor has sufficient support length on the roof beam during installation, need not to set up interim support during on-the-spot installation, has reduced construction cost, has improved the construction speed to avoid the floor to take place the circumstances such as landing and floor fracture in the work progress, construction factor of safety is high.
After the connection of the full precast floor slab is completed, the first mounting hole 3, the second mounting hole 4, the screw 6 and the floor slab concrete act together to provide bending resistance. The pre-reserved stabilizing holes 5 in the precast beams can limit the relative displacement of the floor slab and the precast beams. After the whole floor slab is connected, the seat has the capacity of bearing bending moment, and a continuous floor slab system can be formed, so that the reinforcement amount and the deformation amount of the floor slab are reduced.
And a screw 6 is arranged between the first mounting hole 3 and the second mounting hole 4 and is fixedly connected with the first mounting hole 6 through the screw 6.
The first mounting holes 3 and the second mounting holes 4 are alternately arranged on the same side wall of the same prefabricated plate 2, and the first mounting holes 3 and the second mounting holes 4 alternately arranged on the same side wall of the same prefabricated plate 2 are arranged at different heights.
The first mounting holes 3 and the second mounting holes 4 are arranged on the opposite side walls of the same prefabricated plate 2 in a plurality of numbers, and the height positions of the first mounting holes 3 and the second mounting holes 4 which are arranged on the opposite side walls of the same prefabricated plate 2 in a matching manner are the same.
Based on the above structure, the adjacent prefabricated panels 2 are connected by the first mounting holes 3 and the second mounting holes 4 through the connecting screws 6, but because the side walls of the prefabricated panels 2 are thin, if all the corresponding first mounting holes 3 and second mounting holes 4 are aligned up and down when different prefabricated panels are connected, the cross section of the aligned upper and lower screws is weakened too much, stress is concentrated, and therefore the upper and lower screws are required to be arranged in a staggered manner, that is, the corresponding upper and lower first mounting holes 3 and second mounting holes 4 are arranged in a staggered manner when different prefabricated panels are connected, and screw connection is required from top to bottom in order to resist bending moment of the connecting part.
The rear ends of the first mounting hole 3 and the second mounting hole 4 are provided with mounting grooves 7, the positions of the first mounting hole 3 and the second mounting hole 4 are opposite in hoisting operation, and then the screw rods 6 are connected through the mounting grooves 7 at the rear ends and locked.
The side wall of the precast slab 2 is in a step shape, and the first mounting hole 3 and the second mounting hole 4 on the precast slab 2 on the same side are in different step positions.
Bearing structure 1 includes precast concrete beam 11 and embedded bar 12, embedded bar 12 one end sets up at precast concrete beam 11, and the upper surface that the other end is outstanding precast concrete beam 11 sets up, be provided with the screw thread that matches with stable hole 5 on the embedded bar 12 that outstanding precast concrete beam 11 set up, be connected with stable hole 5 through embedded bar 12, make bearing structure 1 provide support and spacing for prefabricated plate 2.
The embedded steel bars 12 are arranged at one end of the precast concrete beam 11 to form a hook-shaped structure, and the anchoring strength of the embedded steel bars in concrete can be guaranteed through the hook-shaped structure, so that the steel bars are prevented from being pulled out, and the precast slabs 2 are connected with the precast concrete beam 11 more stably.
The prefabricated plate 2 is provided with a plurality of stabilizing holes 5, the stabilizing holes 5 penetrate through the prefabricated plate 2, and the positions of the stabilizing holes 5 are matched with the position of the supporting structure 1.
The hole shape of the stabilizing hole 5 is an upper circle and a lower circle; set up the chamfer at the floor side, make things convenient for later stage water repellent.
The prefabricated plates 2 adjacent to each other in the width direction are caulked through the sealant, so that the joints are in seamless connection, when the embedded steel bars are connected with the stable holes, the prefabricated floor slab and the prefabricated beam are connected together through the threads, the nuts and the base plates reserved on the upper portions of the embedded steel bars, and the floor slab and the prefabricated concrete beam are guaranteed not to generate relative displacement.
The installation method of the structure comprises the following steps:
the precast slabs 2 are hoisted on the supporting structure 1, and the pre-buried steel bars with screw openings on the precast beams penetrate through the floor slab stabilizing holes during installation, so that the purpose of connecting the floor slab and the precast beams together is achieved. During hoisting, the first mounting hole 3 and the second mounting hole 4 of the adjacent prefabricated plates 2 are lapped together to ensure that bolt holes at the joints of the prefabricated plates are aligned, then the first mounting hole 3 and the second mounting hole 4 are connected through bolts to fixedly connect the adjacent prefabricated plates 2, micro-expansion fine aggregate concrete is poured after the reserved mounting grooves 7 and the stabilizing holes 5 are positioned, and sealant is applied to the chamfered positions of the plates to improve the waterproof performance of the floor slab and complete the installation operation.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. The utility model provides a mounting structure of full precast floor slab which characterized in that: the prefabricated slab comprises a supporting structure, a prefabricated slab, a first mounting hole, a second mounting hole and a stabilizing hole; the first mounting holes and the second mounting holes are respectively formed in two side walls in the width direction of the prefabricated slab, the stabilizing holes are uniformly formed in the prefabricated slab, the supporting structure is arranged at the bottom of the prefabricated slab, and the supporting structure is connected with the stabilizing holes.
2. The installation structure of a full precast floor slab according to claim 1, wherein: the first mounting holes and the second mounting holes are alternately arranged on the same side wall of the same prefabricated plate in a plurality, and the first mounting holes and the second mounting holes alternately arranged on the same side wall of the same prefabricated plate are arranged at different heights.
3. The installation structure of a full precast floor slab according to claim 2, wherein: the first mounting holes and the second mounting holes are arranged on the opposite side walls of the same prefabricated plate in a plurality of numbers, and the height positions of the first mounting holes and the second mounting holes which are arranged on the opposite side walls of the same prefabricated plate in a matching mode are the same.
4. A mounting structure of a full precast floor slab according to claim 1, 2 or 3, wherein: the supporting structure comprises a precast concrete beam and embedded steel bars, one end of each embedded steel bar is arranged on the precast concrete beam, the other end of each embedded steel bar protrudes out of the upper surface of the precast concrete beam, and threads are arranged on the embedded steel bars protruding out of the precast concrete beam.
5. A mounting structure of a full precast floor slab according to claim 1, 2 or 3, wherein: the prefabricated plate is provided with a plurality of stabilizing holes, the stabilizing holes penetrate through the prefabricated plate, and the positions of the stabilizing holes are matched with the positions of the supporting structures.
6. A mounting structure of a full precast floor slab according to claim 1, 2 or 3, wherein: the rear ends of the first mounting hole and the second mounting hole are provided with mounting grooves, and a screw rod is arranged between the first mounting hole and the second mounting hole.
7. A mounting structure of a full precast floor slab according to claim 1, 2 or 3, wherein: the side wall of the prefabricated plate is in a step shape, and the first mounting hole and the second mounting hole in the prefabricated plate on the same side are in different step positions.
8. The installation structure of a full precast floor slab according to claim 4, wherein: the embedded steel bars are arranged at one end of the precast concrete beam to form a hook structure.
9. A mounting structure of a full precast floor slab according to claim 1, 2 or 3, wherein: the hole shape of the stabilizing hole is an upper circle and a lower circle; set up the chamfer at the floor side, make things convenient for later stage water repellent.
CN202020517428.4U 2020-04-10 2020-04-10 Mounting structure of full precast floor slab Active CN211949120U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020517428.4U CN211949120U (en) 2020-04-10 2020-04-10 Mounting structure of full precast floor slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020517428.4U CN211949120U (en) 2020-04-10 2020-04-10 Mounting structure of full precast floor slab

Publications (1)

Publication Number Publication Date
CN211949120U true CN211949120U (en) 2020-11-17

Family

ID=73160765

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020517428.4U Active CN211949120U (en) 2020-04-10 2020-04-10 Mounting structure of full precast floor slab

Country Status (1)

Country Link
CN (1) CN211949120U (en)

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