CN110777971A - PC wallboard mounting structure and construction method thereof - Google Patents

PC wallboard mounting structure and construction method thereof Download PDF

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Publication number
CN110777971A
CN110777971A CN201911126953.1A CN201911126953A CN110777971A CN 110777971 A CN110777971 A CN 110777971A CN 201911126953 A CN201911126953 A CN 201911126953A CN 110777971 A CN110777971 A CN 110777971A
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CN
China
Prior art keywords
wallboard
steel plate
channel
mounting structure
floor slab
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CN201911126953.1A
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Chinese (zh)
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CN110777971B (en
Inventor
李宏
沈有辉
李彪奇
王亚
王伟
衣智明
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Sinohydro Bureau 8 Co Ltd
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Sinohydro Bureau 8 Co Ltd
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Priority to CN201911126953.1A priority Critical patent/CN110777971B/en
Publication of CN110777971A publication Critical patent/CN110777971A/en
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Publication of CN110777971B publication Critical patent/CN110777971B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/40Separate connecting elements
    • E04B1/41Connecting devices specially adapted for embedding in concrete

Abstract

The invention discloses a PC wallboard mounting structure and a construction method thereof. The PC wallboard mounting structure comprises a floor slab, a first wallboard supporting the floor slab and a second wallboard mounted on the floor slab; the second wallboard is provided with a lower rib, and a channel steel with a downward opening and extending longitudinally is embedded at the bottom end part of the second wallboard; an embedded steel plate is fixed on the upper surface of the floor slab; the first wallboard is provided with an upper outlet rib which penetrates through the floor slab and is fixedly connected with the embedded steel plate; the lower end face of the channel steel is fixedly connected with the upper surface of the embedded steel plate in a welding mode to form a hollow grouting area; and a grouting channel communicated with the hollow grouting area is formed in the side wall of the second wallboard. The invention has convenient construction and can greatly reduce the installation cost.

Description

PC wallboard mounting structure and construction method thereof
Technical Field
The invention relates to a PC wallboard mounting structure and a construction method thereof, belonging to the field of PC house industrialization (construction).
Background
The upper reinforcing steel bar and the lower reinforcing steel bar of the traditional building are directly connected through welding, and the assembly type building is very troublesome in direct welding due to limited operation space, so that a grouting sleeve or a grout anchor is usually adopted for connection.
The existing assembled PC wallboard is mostly connected by adopting a grouting sleeve or a corrugated pipe and the like, the positioning precision of the reinforcing steel bar is high, the components are difficult to align and install, the bin sealing is troublesome, the grouting is unreliable, and the detection is difficult. Therefore, the cost of the fabricated building is high, and the popularization and the application are limited.
For example, chinese patent publication No. CN103726607A discloses a wall panel for assembling an integral shear wall, a shear wall and a construction method of the shear wall. For example, chinese patent publication No. CN206753081U discloses a prefabricated wall panel installation structure. Above-mentioned patent either still adopts grout muffjoint, or adopts the steel reinforcement welding directly to link, still has above-mentioned problem.
Disclosure of Invention
The invention aims to provide a PC wallboard mounting structure and a construction method thereof, the mounting structure replaces grouting sleeve connection with on-site welding connection, a series of problems of PC wallboard in mounting precision, grouting, detection and the like can be effectively solved, construction is convenient, and mounting cost can be greatly reduced.
In order to achieve the purpose, the invention adopts the technical scheme that:
a PC wallboard mounting structure is structurally characterized by comprising a floor slab, a first wallboard supporting the floor slab and a second wallboard mounted on the floor slab;
the second wallboard is provided with a lower rib, and a channel steel with a downward opening and extending longitudinally is embedded at the bottom end part of the second wallboard;
an embedded steel plate is fixed on the upper surface of the floor slab;
the first wallboard is provided with an upper outlet rib which penetrates through the floor slab and is fixedly connected with the embedded steel plate;
the lower end face of the channel steel is fixedly connected with the upper surface of the embedded steel plate in a welding mode to form a hollow grouting area;
and a grouting channel communicated with the hollow grouting area is formed in the side wall of the second wallboard.
Therefore, the channel steel and the embedded steel plate are welded to form a hollow grouting area, the channel steel is a section steel body in appearance, and the welded structure has structural strength, so that the cross operations of cabin sealing, grouting and the like of the next layer of wallboard (second wallboard) can be performed after the upper layer of floor construction, and compared with the existing fabricated building construction, the construction period can be obviously shortened. After grouting, the hollow grouting area is filled with grouting slurry, so that the connection reliability of the wallboard and the floor slab can be ensured.
Preferably, the hollow grouting area is closed at both ends, i.e. the steel profile body is closed at both ends.
According to the embodiment of the invention, the invention can be further optimized, and the following is the technical scheme formed after optimization:
in order to adjust the position of the second wall plate more accurately, the second wall plate is provided with a lower protruding rib fixedly connected with the channel steel; preferably, the lower end part of the lower protruding rib is provided with a thread, and the lower end part of the lower protruding rib penetrates through the channel steel and is fixedly connected with the nut.
Preferably, the top end part of the upper protruding rib is provided with a thread, and the top end part of the upper protruding rib penetrates through the embedded steel plate and is fixedly connected with the nut. This connection is simple and quick.
The invention creatively changes the direct welding of the conventional steel bars into indirect connection, thereby not only ensuring the reliability of the connection of the upper and lower steel bars, but also providing welding space for the welding of channel steel and solving a series of problems in the assembly type building.
In order to prevent the defects of air holes and the like of the grouting material in the hollow grouting area, a grout outlet channel communicated with the hollow grouting area is further formed in the side wall of the second wallboard.
In order to ensure that the grouting material is filled in the hollow grouting area, the height of the grout outlet channel on the side wall is higher than that of the grouting opening of the grouting channel on the side wall.
In order to improve the water stopping effect, the upper surface of the embedded steel plate is provided with a water stopping strip which is located in the hollow grouting area and extends longitudinally, and preferably, the upper surface of the embedded steel plate is flush with the upper surface of the floor slab.
In order to ensure that the embedded steel plate is firmly connected to the floor slab, the lower surface of the embedded steel plate is provided with an anti-falling structure, and the anti-falling structure is used for fixedly connecting the embedded steel plate and the floor slab together; preferably, the anti-falling structure is a reinforced steel plate extending downwards relative to the lower surface of the embedded steel plate.
In order to improve the connection strength of the embedded steel plate and the floor slab, the lower end face of the channel steel extends downwards relative to the lower end face of the second wallboard.
Preferably, the hollow grouting area is a closed steel body formed by welding channel steel and embedded steel plates.
Based on the same invention concept, the invention also provides a construction method of the PC wallboard mounting structure, which comprises the following steps:
s1, forming a floor slab by formwork erection at the top end of the first wallboard, fixing the embedded steel plate on the upper surface of the floor slab, and fixedly connecting the upper outlet rib of the first wallboard with the embedded steel plate; preferably, after the floor reaches the strength requirement, a water stop strip which is longitudinally arranged is arranged on the upper surface of the embedded steel plate.
S2, hoisting the second wallboard to the embedded steel plate, fixing and adjusting the second wallboard in place;
s3, fixedly connecting the channel steel of the second wallboard with the embedded steel plate in a welding mode;
s4, sealing the bottom of the second wallboard, and injecting grouting material through the grouting channel after the material to be sealed reaches the required strength to ensure that the channel steel is filled with the grouting material.
And S5, repeating the steps S1-S4, and carrying out installation construction of the next building.
From this, through linking to each other channel-section steel and pre-buried steel sheet welded fastening, become the reinforcing bar and directly weld for indirect connection, made things convenient for follow-up storehouse and grout, solved a series of problems in the assembly type structure.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts channel steel and steel plates to form a closed section steel body by welding. The upper and lower reinforcing steel bars are fixedly connected to the section steel body through threads, and creative direct welding of the upper and lower reinforcing steel bars is indirect connection, so that the reliability of connection of the upper and lower reinforcing steel bars is guaranteed, welding space is provided for channel steel welding, and a series of problems in the assembly type building are solved.
The channel steel of the PC wallboard extends out of the bottom of the member, so that the damage of the bottom of the member in the transfer process can be avoided; when the steel plate is installed, the steel plate is welded and connected with the floor slab through the channel steel, the requirement on the precision of the steel bar is low, and the installation and positioning problems of grouting sleeves and the like are solved. The channel steel is welded with the floor embedded steel plate, the welding is convenient and reliable, the welding quality is visible by naked eyes, and professional detection is not needed.
The section steel body of the invention forms a whole, and the sealing of the bin is convenient and fast.
A small number of grouting holes and grout outlet holes are formed in the PC wallboard, so that grouting is convenient. The connection mode of the invention has high installation efficiency and low installation cost.
Because the structure possesses structural strength promptly after the welding, consequently can carry out the cross operation such as closing storehouse, grout of lower floor's wallboard after the upper floor construction, compare in current assembly type building construction, can effectively shorten construction cycle.
Drawings
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural view of the first wall panel of FIG. 1;
fig. 3 is a construction diagram of the present invention.
Detailed Description
A PC wall panel mounting structure, as shown in fig. 1 and 2, includes a floor panel 2, a first wall panel 5 supporting the floor panel 2 and a second wall panel 1 mounted on the floor panel 2. The second wallboard 1 is provided with a lower rib, and a channel steel 3 with a downward opening and extending longitudinally is embedded at the bottom end part of the second wallboard 1. The lower terminal surface of channel-section steel 3 stretches out downwards relative to the lower terminal surface of second wallboard 1, conveniently seals the storehouse. And an embedded steel plate 4 is fixed on the upper surface of the floor slab 2. First wallboard 5 is the same with the structure of second wallboard 1, and equal pre-buried reinforcing bar 13 in first wallboard 5 and the second wallboard 1, and the relative each wallboard in upper end of reinforcing bar 13 stretches out and forms out muscle 51, and the relative each wallboard of lower extreme of reinforcing bar 13 stretches out and forms out the muscle down. It is worth mentioning that the channel steel can not be fixed on the wallboard when the factory is prefabricated, the lower part of the wallboard is provided with a groove which longitudinally extends along the lower end face of the wallboard, and the channel steel 3 is adjusted and installed during subsequent installation, so that the channel steel 3 is fixedly connected with the lower steel bar.
The channel steel 3 is provided with a hole for the lower bar to pass through, a grouting hole and a grout outlet, and the embedded steel plate 4 on the upper surface of the floor slab 2 is provided with a hole for the upper bar to pass through.
In order to solve the problem that the welding space of the embodiment is limited due to the traditional rib-out direct connection mode, the second wall panel 1 of the embodiment has a lower rib-out part fixedly connected with the channel steel 3, specifically, the lower end part of the lower rib-out part has a thread, and the lower end part of the lower rib-out part penetrates through the channel steel 3 and is fixedly connected with the nut 14. The first wall board 5 is provided with an upper rib 51, and the upper rib 51 penetrates through the floor slab 2 and is fixedly connected with the embedded steel plate 4. The top end part of the upper protruding rib 51 is provided with a screw thread, and the top end part of the upper protruding rib 51 penetrates through the embedded steel plate 4 and is fixedly connected with the nut 44.
Because the channel steel 3 is directly connected with the embedded steel plate 4 in a welding mode, the lower end face of the channel steel 3 is fixedly connected with the upper surface of the embedded steel plate 4 in a welding mode to form a hollow grouting area. The hollow grouting area is a closed section steel body formed by welding the channel steel 3 and the embedded steel plate 4, namely two ends of the section steel body are closed. And a grouting channel 11 communicated with the hollow grouting area is formed in the side wall of the second wallboard 1. The side wall of the second wall plate 1 is also provided with a grout outlet channel 12 communicated with the hollow grouting area. The outlet elevation of the slurry outlet channel 12 on the side wall is higher than the grouting opening elevation of the grouting channel 11 on the side wall. Thus, when the grouting passage 11 is filled with grouting material, the grouting material can fill the hollow grouting area without leakage. When the grouting material fills the hollow grouting area, the grouting material can only flow out through the grout outlet passage 12.
The upper surface of the embedded steel plate 4 is provided with a water stop strip 41 which is located in the hollow grouting area and extends longitudinally, and preferably, the upper surface of the embedded steel plate 4 is flush with the upper surface of the floor slab 2.
This embodiment has adopted above-mentioned special PC wallboard, particularly, pre-buried connecting reinforcement 13 that has in the PC wallboard, the upper and lower tip of this embedded reinforcement stretches out PC wallboard face and forms out the muscle and go out the muscle down, and goes out the muscle from top to bottom and all have the screw thread of connecting usefulness, has the channel-section steel in the wall body lower part, and the channel-section steel is partly buried inside the PC wallboard, and partly stretches out the wall body bottom, through nut and connecting reinforcement sub-unit connection, at the integrated preparation shaping of mill. The inner surface of the wall body is provided with a plurality of grouting holes and grout outlet holes, and the grout outlet holes are higher than the grouting holes, so that the grouting and filling are convenient after the installation. During installation, the channel steel is connected with a steel plate embedded on the floor slab through intermittent welding, and the embedded steel plate is connected with lower-layer steel bars through nuts, so that connection of the upper wallboard and the lower wallboard and the floor slab is realized.
There is anti-disengaging structure 42 pre-buried steel sheet lower part, and preferably, anti-disengaging structure is a longitudinal extension's reinforced steel plate, can effectively prevent on the one hand that the steel sheet is out of shape, and on the other hand can multiplicable pre-buried steel sheet and floor's firm in connection nature.
The longitudinal extension of the embodiment refers to the length direction of the lower end face of the wallboard.
The PC wallboard of this embodiment is accomplished in the mill, and the mill has accomplished the connection of upper longitudinal reinforcement and channel-section steel to transport to the building site and stack and wait to install.
As shown in fig. 3, before the floor slab is poured, adjusting nuts on the lower-layer threaded longitudinal steel bars are adjusted in place to form a horizontal plane and reach a preset height, the embedded steel plates are placed to penetrate through the lower-layer longitudinal steel bars, the upper surfaces of the embedded steel plates are flush with the floor elevation, the embedded steel plates are fixed through the nuts, and therefore connection of the lower-layer steel bars and the embedded steel plates is completed. And erecting a floor slab support on site to install a laminated floor slab or pouring a floor slab, and completing the connection and fixation of the floor slab, the lower-layer steel bars and the embedded steel plates.
After the floor reaches the required strength, a water stop bar is installed on the embedded steel plate, the upper PC wallboard begins to be hoisted and vertically placed on the embedded steel plate, and the upper PC wallboard is fixed and adjusted in place by the inclined strut. And (4) welding the channel steel and the floor slab embedded steel plate by using intermittent welding on site, thereby completing the connection of the upper and lower layers of the PC wallboard.
The bin sealing is carried out on the periphery of the PC wallboard bottom plate by using high-strength mortar, grouting materials are injected into grouting holes of the PC wallboard after bin sealing materials reach required strength, the channel steel is fully filled, the grout outlet is provided with grout to flow out, and the grout inlet and outlet is plugged to complete installation.
And repeating the operations to carry out the installation and construction of the next layer of building until the whole construction is finished.
The foregoing examples are set forth to illustrate the present invention more clearly and are not to be construed as limiting the scope of the invention, which is defined in the appended claims to which the invention pertains, as will be apparent to those skilled in the art, after reading the present invention.

Claims (10)

1. A PC wall panel mounting structure, comprising a floor (2), a first wall panel (5) supporting the floor (2) and a second wall panel (1) mounted on the floor (2);
the second wall plate (1) is provided with a lower rib, and a channel steel (3) with a downward opening and extending longitudinally is embedded at the bottom end part of the second wall plate (1);
an embedded steel plate (4) is fixed on the upper surface of the floor slab (2);
the first wall plate (5) is provided with an upper outlet rib (51), and the upper outlet rib (51) penetrates through the floor slab (2) and is fixedly connected with the embedded steel plate (4);
the lower end face of the channel steel (3) is fixedly connected with the upper surface of the embedded steel plate (4) in a welding mode to form a hollow grouting area;
and a grouting channel (11) communicated with the hollow grouting area is formed in the side wall of the second wallboard (1).
2. The PC wallboard mounting structure of claim 1, wherein the second wallboard (1) has a lower protruding rib fixedly connected with the channel steel (3); preferably, the lower end part of the lower protruding rib is provided with a thread, and the lower end part of the lower protruding rib penetrates through the channel steel (3) and is fixedly connected with a nut.
3. The PC wallboard mounting structure of claim 1, wherein the top end portion of the upper protruding rib (51) is provided with a screw thread, and the top end portion of the upper protruding rib (51) passes through the embedded steel plate (4) and is fixedly connected with a nut.
4. The PC wallboard mounting structure of claim 1, wherein the second wallboard (1) is further provided with a grout outlet channel (12) on the side wall, which is communicated with the hollow grouting area.
5. PC wall board mounting structure according to claim 4, wherein the grout outlet channel (12) has a higher grout outlet elevation on the side wall than the grout outlet elevation of the grout inlet channel (11) on the side wall.
6. PC wallboard mounting structure according to any of claims 1-5, characterized in that the upper surface of the pre-buried steel plate (4) is provided with a water stop (41) located in the hollow grouting area and extending longitudinally, preferably the upper surface of the pre-buried steel plate (4) is flush with the upper surface of the floor slab (2).
7. The PC wallboard mounting structure of any one of claims 1-5, wherein the lower surface of the pre-buried steel plate (4) is provided with a retaining structure (42), the retaining structure (42) is used for fixedly connecting the pre-buried steel plate (4) and the floor slab (2); preferably, the anti-falling structure (42) is a reinforced steel plate extending downwards relative to the lower surface of the embedded steel plate (4).
8. A PC wallboard mounting structure according to any of claims 1-5, characterized in that the lower end face of the channel steel (3) protrudes downwards opposite the lower end face of the second wallboard (1).
9. The PC wallboard mounting structure of any one of claims 1-5, wherein the hollow grouting area is a closed steel body formed by welding channel steel (3) and embedded steel plate (4).
10. A method of constructing a PC wall panel installation according to any one of claims 1-9, comprising the steps of:
s1, forming a floor slab (2) by formwork erection at the top end of the first wallboard (5), fixing the embedded steel plate (4) on the upper surface of the floor slab (2), and fixedly connecting the upper outlet rib of the first wallboard (5) with the embedded steel plate (4); preferably, after the floor (2) meets the strength requirement, a water stop strip (41) which is longitudinally arranged is arranged on the upper surface of the embedded steel plate (4);
s2, hoisting the second wallboard (1) to the embedded steel plate (4), fixing and adjusting in place;
s3, fixedly connecting the channel steel (3) of the second wallboard (1) with the embedded steel plate (4) in a welding manner;
s4, sealing the bottom of the second wallboard (1), and injecting grouting material through a grouting channel after the sealing material reaches the required strength to ensure that the channel steel is fully filled;
and S5, repeating the steps S1-S4, and carrying out installation construction of the next building.
CN201911126953.1A 2019-11-18 2019-11-18 PC wallboard mounting structure and construction method thereof Active CN110777971B (en)

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CN110777971B CN110777971B (en) 2021-05-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112695898A (en) * 2020-12-30 2021-04-23 广西建工集团第五建筑工程有限责任公司 Construction method of steel structure embedded part capable of bearing large tension force and limited in space

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CN108265835A (en) * 2018-03-16 2018-07-10 中冶建工集团有限公司 Precast shear wall component assembling grouting sealing mechanism and sealing grouting method
CN109339344A (en) * 2018-10-10 2019-02-15 湖南大学 A kind of high level assembly concrete shear wall structure boxlike connection structure and method
CN109837994A (en) * 2019-01-11 2019-06-04 温州东联市政工程有限公司 A kind of Prefabricated reinforced concrete is whole to pour building structure and its construction method
CN208934178U (en) * 2018-07-25 2019-06-04 湖北三峡快捷居集成房屋有限公司 The vertical wallboard of log cabin and ground attachment device with closing connection box

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Publication number Priority date Publication date Assignee Title
WO2014059546A1 (en) * 2012-10-17 2014-04-24 Lubberts Matthew John Building systems and methods
CN206233466U (en) * 2016-11-22 2017-06-09 湖南远大工程设计有限公司 Precast shear wall steel bar connecting joints
CN207331959U (en) * 2017-07-21 2018-05-08 长沙远大住宅工业(江苏)有限公司 Prefabricated post connection structure
CN108265835A (en) * 2018-03-16 2018-07-10 中冶建工集团有限公司 Precast shear wall component assembling grouting sealing mechanism and sealing grouting method
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112695898A (en) * 2020-12-30 2021-04-23 广西建工集团第五建筑工程有限责任公司 Construction method of steel structure embedded part capable of bearing large tension force and limited in space

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