CN216239048U

CN216239048U - Construction joint of vertical piece of prefabricated assembled PTW

Info

Publication number: CN216239048U
Application number: CN202121739472.0U
Authority: CN
Inventors: 张二龙; 周前明; 郭军强; 康强; 潘康; 冯继
Original assignee: China Construction Fifth Bureau Third Construction Co Ltd
Current assignee: China Construction Fifth Bureau Third Construction Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-04-08
Anticipated expiration: 2031-07-29

Abstract

A construction node of a prefabricated PTW vertical abutted seam comprises PTW wallboards, wherein a plurality of foot fixing pieces are fixed on positions, close to the bottom, of two outer sides of each PTW wallboard, the PTW wallboards are pre-fixed on the ground through the foot fixing pieces, the outer sides of adjacent PTW wallboards are connected with each other through horizontal fixing pieces at a seam, clamping grooves are distributed on two sides of the seam and along the seam inside each PTW wallboard, a steel bar net sheet is vertically inserted between the two clamping grooves in each PTW wallboard, a plastic foam rod plug seam is arranged in the seam of each adjacent PTW wallboard, and the seam is sealed through sealant filled in the outer side of the plastic foam rod; the utility model improves the working efficiency, effectively reduces the construction cost, has low manufacturing cost, improves the quality of the abutted seams and increases the structural integrity.

Description

Construction joint of vertical piece of prefabricated assembled PTW

Technical Field

The utility model relates to a construction joint for prefabricated PTW vertical splicing.

Background

PTW refers to an assembly type truss superposed wallboard, two prefabricated plates are connected through a steel bar truss or a steel truss to form a middle cavity, and concrete is poured into the cavity after on-site splicing to form the assembly type truss superposed wallboard. The laminated wall panel is manufactured in batches in factories, has the characteristics of energy conservation, environmental protection and the like, ensures the quality of the prefabricated panel, and can greatly improve the construction efficiency.

The construction process of the water treatment structure of the underground water treatment project is complex, the wall boards are high in height and large in thickness, and according to the traditional assembly construction process, two groups of PTW wall boards need to be subjected to on-site formwork erecting at vertical abutted seams before concrete is assembled and poured on site; but the conditions of formwork pouring, maintenance, site limitation and the like limit the operation of erecting and disassembling the formwork in space; the vertical abutted seam formwork construction ensures that the flatness of the surface of the wallboard is not easy to guarantee, and reduces the construction speed; the high and large template engineering has certain safety risk, a special construction scheme needs to be formulated, expert demonstration is carried out, and the scheme formulation and approval process is complicated; the formworks on the two sides need to be provided with split bolts, so that the risk of water leakage of the wallboard is increased; the above construction processes all require a lot of time and personnel investment, which is not favorable for construction period and cost control.

In order to solve the problems of splicing and formwork supporting of the PTW wallboard and the like, if a traditional assembly type construction treatment method is referred, a formwork pouring and splicing mode is adopted, the construction quality is unreliable, the construction procedures are multiple, the efficiency is low, and the economic performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art and provide a prefabricated PTW vertical splicing construction joint which improves the working efficiency, effectively reduces the construction cost, has low manufacturing cost, improves the splicing quality and increases the structural integrity.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model discloses a prefabricated PTW vertical splicing construction joint which comprises PTW wallboards, wherein a plurality of foot fixing pieces are fixed at positions, close to the bottoms, of two outer sides of each PTW wallboard, the PTW wallboards are pre-fixed on the ground through the foot fixing pieces, the outer sides of adjacent PTW wallboards are connected with each other through horizontal fixing pieces at joints, clamping grooves are distributed at two sides of the joints at the inner sides of the PTW wallboards along the joints, a reinforcing mesh is vertically inserted between the two clamping grooves in each PTW wallboard, a plastic foam rod plug seam is arranged in the joints of the adjacent PTW wallboards, and the joints are sealed through sealing glue filled at the outer sides of the plastic foam rods.

In this embodiment, the PTW wall panel is composed of two prefabricated panels, and a gap is formed between the two prefabricated panels to form a cavity in which concrete is poured in situ.

In this embodiment, the foot mounting is the L type, and the riser and the bottom plate of foot mounting all are equipped with the bolt trompil, the riser and the bottom plate of foot mounting pass through the pre-buried bolt of wallboard and fix respectively at PTW wallboard and subaerial.

In this embodiment, the clamping groove is formed by pre-embedded angle steels pre-embedded on the PTW wallboard, and the angle steels on two sides of the joint of adjacent PTW wallboards form a clamping groove with openings oppositely arranged.

In this embodiment, the depth of the sealant for caulking is not less than 10 mm.

In the embodiment, the thickness of the inner and outer prefabricated plates is between 60 and 80 mm.

By adopting the mode, the PTW wallboard of the device is prefabricated in a factory, so that on one hand, the production quality is controllable, the construction quality is effectively improved, and on the other hand, the PTW wallboard can be directly transported to a construction site for assembly, so that the construction period of the site is effectively shortened; the PTW wallboard replaces a template in a construction process of on-site formwork erection and splicing through splicing on site, a series of construction procedures brought by a scaffold and the template are omitted, and the speed of wallboard splicing and the construction quality are improved; by arranging the reinforcing mesh inside the joint, the quality of the abutted seam is improved, the structural integrity is improved, and the safety performance of the joint is ensured; the plastic foam rod is matched with the sealant, so that the sealing effect of the joint is ensured, and the waterproof effect is good.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is an elevational view of the present invention;

FIG. 3 is a partial overview of the present invention;

fig. 4 is a partial second broad view of the present invention.

Description of reference numerals: 1. PTW wallboard; 2. a foot fixing member; 3. a horizontal fixing member; 4. Embedding bolts in advance; 5. embedding angle steel in advance; 6. reinforcing mesh sheets; 7. a plastic foam rod; 8. adhesive tape paper; 9. and (7) sealing the glue.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in figures 1 to 4, a construction node of vertical piece of prefabricated assembled PTW, including PTW wallboard 1, foot mounting 2, horizontal fixing piece 3, buried bolt 4, buried angle steel 5, reinforcing bar net piece 6, foam stick 7, adhesive tape 8, sealed glue 9, PTW wallboard 1, buried bolt 4 and buried angle steel 5 are all prefabricated the completion in the processing factory, transport the on-the-spot construction of assembling.

The PTW wallboard 1 is composed of two precast slabs, a gap is arranged between the two precast slabs to form a cavity for pouring concrete at present, a plurality of foot fixing pieces 2 are fixed at positions, close to the bottom, of two outer sides of the PTW wallboard 1, the foot fixing pieces 2 are L-shaped, bolt holes are formed in the vertical plates and the bottom plates of the foot fixing pieces 2, the vertical plates of the foot fixing pieces 2 are fixed on the PTW wallboard through wallboard embedded bolts 4, the bottom plates are fixed on the ground, the outer sides of adjacent PTW wallboards 1 are connected with each other at joints through horizontal fixing pieces 3, embedded angle steels 5 are arranged at two sides of the joints and along the joints at the inner sides of the PTW wallboards 1, the angle steels at two sides of the joints at the adjacent PTW wallboards 1 form clamping grooves with openings arranged oppositely, the reinforcing mesh 6 is vertically inserted into the clamping groove, a plastic foam rod 7 is arranged in a seam of the adjacent PTW wallboard 1, and the seam is filled and sealed by a sealant 9 arranged on the outer side of the plastic foam rod 7.

The concrete construction steps are as follows:

firstly, the PTW wallboard 1 is hoisted in place and leveled, the position of a wall is checked, the verticality of the wall is ensured to be within a standard control range, and then the foot fixing piece 2 and the horizontal fixing piece 3 are fixed on the PTW wallboard 1 through the wallboard embedded bolt 4; the foot of PTW wallboard 1 carries out the grout operation after PTW wallboard 1 is fixed to accomplish, at first with the square timber with the seam shutoff of wall body periphery before the grout operation, then with the foaming glue to carry out the shutoff to the equal gap between square timber and the wall body, the gap between the raft board, the gap between the square timber, guarantee not to leak thick liquid.

Then install vertical reinforcing bar net piece 6, reinforcing bar net piece 6 adopts the mechanical welding processing finished product reinforcing bar net piece, hoists reinforcing bar net piece 6, slowly puts into to 1 vertical piece department of two sets of PTW wallboards with reinforcing bar net piece 6 along 1 top embedded angle steel 5 positions of PTW wallboard, fixes a position reinforcing bar net piece 6 through embedded angle steel 5.

Splicing and gluing the PTW wallboard 1, adhering adhesive tapes 8 to two sides of a joint of the PTW wallboard 1 along the joint direction before gluing, and making the adhesive tapes 8 and the two sides of the joint be aligned in a whole length, so that the wall surface is prevented from being polluted by glue, and the line type of the gluing position is ensured to be neat; then the plastic foam rod 7 is used for plugging the seam, and the plastic foam rod 7 can be folded in half and plugged into the wall seam at the larger position of the seam. The sealant 9 needs to be mixed according to the required proportion, the mixture can be used after being stirred in the stirrer for 15 minutes, the width of joint filling is about 20mm, the depth is not less than 10mm, the sealant is beaten by a sealant gun from bottom to top during beating, and the finished sealant surface is parallel and level to the wall surface. After the steps are finished, cast-in-place concrete pouring is carried out in the PTW wallboard 1.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a construction node of vertical piece of prefabricated assembled PTW which characterized in that: including the PTW wallboard, be fixed with a plurality of foot mountings on the position that two outsides of PTW wallboard are close to the bottom, the PTW wallboard passes through the foot mounting and fixes subaerial in advance, and the outside of adjacent PTW wallboard passes through horizontal mounting interconnect in seam crossing, the PTW wallboard is inboard in the seam both sides, along the seam laid the draw-in groove, in the PTW wallboard, vertical cartridge has the reinforcing bar net piece between two draw-in grooves, is equipped with the excellent chock joint of plastic foam in the seam of adjacent PTW wallboard, the seam is sealed through the sealed glue of filling in the outside of plastic foam stick.

2. The construction joint of prefabricated PTW vertical abutted seam according to claim 1, characterized in that: the PTW wallboard is composed of two precast slabs, and a gap is arranged between the two precast slabs to form a cavity for pouring concrete in situ.

3. The construction joint of prefabricated PTW vertical abutted seam according to claim 1, characterized in that: the foot mounting is the L type, and the riser and the bottom plate of foot mounting all are equipped with the bolt trompil, the riser and the bottom plate of foot mounting pass through the pre-buried bolt of wallboard and fix respectively at PTW wallboard and subaerial.

4. The construction joint of prefabricated PTW vertical abutted seam according to claim 1, characterized in that: the clamping groove is formed by embedded angle steel embedded on the PTW wallboard, and the angle steel on two sides of a joint of adjacent PTW wallboards form a clamping groove with openings arranged oppositely.

5. The construction joint of prefabricated PTW vertical abutted seam according to claim 1, characterized in that: the depth of the sealant for filling is not less than 10 mm.

6. The construction joint of prefabricated PTW vertical abutted seam according to claim 1, characterized in that: the thickness of the inner side prefabricated plate and the outer side prefabricated plate is 60-80 mm.