CN114856195A - Post-pouring construction method for floor slab at building pipe well - Google Patents

Post-pouring construction method for floor slab at building pipe well Download PDF

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Publication number
CN114856195A
CN114856195A CN202210630481.9A CN202210630481A CN114856195A CN 114856195 A CN114856195 A CN 114856195A CN 202210630481 A CN202210630481 A CN 202210630481A CN 114856195 A CN114856195 A CN 114856195A
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CN
China
Prior art keywords
floor slab
pipe well
building
supporting steel
steel plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210630481.9A
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Chinese (zh)
Inventor
李兰飞
刘洋
邓君
江林钊
李野
陆薇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Eighth Engineering Bureau Shenzhen Kechuang Development Co ltd
Original Assignee
China Construction Eighth Engineering Bureau Shenzhen Kechuang Development Co ltd
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Publication date
Application filed by China Construction Eighth Engineering Bureau Shenzhen Kechuang Development Co ltd filed Critical China Construction Eighth Engineering Bureau Shenzhen Kechuang Development Co ltd
Priority to CN202210630481.9A priority Critical patent/CN114856195A/en
Publication of CN114856195A publication Critical patent/CN114856195A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00Vertical ducts; Channels, e.g. for drainage
    • E04F17/08Vertical ducts; Channels, e.g. for drainage for receiving utility lines, e.g. cables, pipes
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings

Abstract

The invention discloses a construction method for post-pouring of a floor slab at a building pipe well, wherein when a building main structure floor slab is constructed, a supporting steel plate is arranged at the pipe well of each layer of the building main structure floor slab, and the outer edge of the supporting steel plate is embedded in the building main structure floor slab and connected with a steel bar structure of the building main structure floor slab; positioning the installation position of the vertical pipeline on the supporting steel plate at the bottom layer and forming a through hole at the installation position; installing a vertically arranged embedded sleeve in the through hole; taking the central point of the embedded sleeve at the bottom layer as a reference point, sequentially forming through holes on the supporting steel plates of the other floors from bottom to top, and installing the embedded sleeve at the upper port of the through hole; and pouring concrete on the supporting steel plate of each layer to form a floor slab at the pipe well of the building in a solidified mode. The invention solves the problems that the post-pouring construction of the floor slab at the pipe well of the existing building structure needs to hang the formwork at high altitude and has high operation potential safety hazard.

Description

Post-pouring construction method for floor slab at building pipe well
Technical Field
The invention relates to the technical field of building construction, in particular to a post-pouring construction method for a floor slab at a building pipe well.
Background
The construction of the floor slab of the partial narrow pipe well in the building adopts a method of post-pouring concrete (namely a post-pouring method). The post-pouring method of the floor slab at the pipe well generally needs to accurately position the sleeve of the vertical pipeline in the pipe well before the floor slab at the pipe well is poured, and then adopts a wooden template or other materials to carry out mold hanging pouring. However, the deviation of the horizontal position of the casing pipe, the deviation of the skew and the vertical height caused by the binding of the structural steel bars and the pouring of the concrete of the floor slab at the pipe well cannot be accurately positioned, so that the deviation of the pipe well casing pipe at the same position of each floor is large, great inconvenience is caused to the installation of a later-stage vertical pipeline, and the phenomenon of later-stage reworking and material waste is serious. In addition, on the one hand, the hoisting and formwork erecting in the pipe well belong to high-altitude and near-edge hole operation, and the operation safety risk is higher.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
In order to overcome the defects in the prior art, the construction method for post-pouring the floor slab at the pipe well of the building is provided so as to solve the problems that the post-pouring construction of the floor slab at the pipe well of the existing building structure needs to hang a mould at high altitude and has high operation potential safety hazard.
In order to realize the purpose, the construction method for post-pouring of the floor slab at the building pipe well comprises the following steps:
when the building main structure floor slab is constructed, a supporting steel plate is arranged at the pipe well of each layer of the building main structure floor slab, and the outer edge of the supporting steel plate is embedded in the building main structure floor slab and connected with a steel bar structure of the building main structure floor slab;
positioning the installation position of the vertical pipeline on the supporting steel plate at the bottom layer and forming a through hole at the installation position;
installing a vertically arranged embedded sleeve in the through hole;
taking the central point of the embedded sleeve at the bottom layer as a reference point, sequentially forming through holes on the supporting steel plates of the other floors from bottom to top, and installing the embedded sleeve at the upper port of the through hole;
and pouring concrete on the supporting steel plate of each layer to form a floor slab at the pipe well of the building in a solidified mode.
Further, before the embedded sleeves of the rest floors are installed, a positioning plate is fixedly arranged on the upper portion of the embedded sleeve at the bottom layer, crossed lines are marked on the positioning plate, the intersection points of the crossed lines are overlapped with the central axis of the embedded sleeve, a laser emitting device is arranged at the intersection points, and the laser emitting device emits laser beams upwards to position the axis center points of the through holes of the supporting steel plates of the rest floors.
Further, the laser emitter is a laser level.
Furthermore, a lower flange is formed at the lower part of the embedded sleeve, a circle of the lower flange is arranged along the circumferential direction of the embedded sleeve, and the lower flange is connected with the supporting steel plate in a sealing mode.
Furthermore, a fixed wing ring is formed in the middle of the embedded sleeve, and the fixed wing ring is connected to the steel bar structure of the floor slab at the building pipe well.
The construction method has the advantages that the embedded sleeve is connected with the supporting steel plate in a (welding) fixed connection mode, the sleeve is prevented from shifting in the traditional floor slab casting process, the levelness and the verticality of the embedded sleeve can be guaranteed, and the construction quality of the embedded sleeve is improved.
The construction process of the construction method for post-pouring the floor slab at the building pipe well can be directly operated on the pre-installed supporting steel plate, thereby avoiding the installation risk of the traditional ascending lifting die and shortening the construction time.
The specification and model of the pre-embedded supporting steel plate used by the construction method for post-pouring the floor slab at the building pipe well can be flexibly adjusted according to the load bearing capacity and thickness required by the slab surface of the floor slab so as to be suitable for different floor slab thicknesses, the operation is convenient, and the attractiveness of floor or wall plugging is improved.
According to the construction method for post-pouring of the floor slab at the building pipe well, the original wood formwork supporting structure is replaced by the supporting steel plate with certain strength pre-buried during structural construction, the strength is higher, an additional formwork bottom supporting system is not needed, the construction difficulty is reduced, the construction is more convenient and faster, the condition that the traditional wood formwork expands in the concrete pouring process is avoided, the construction quality is improved, and the plugging efficiency of the pipe well is improved.
The construction method for post-pouring the floor slab at the building pipe well effectively reduces the time required by positioning the casing pipe, improves the efficiency, greatly improves the accuracy of positioning the casing pipe, avoids picking and chiseling the structural beam slab at the later stage, improves the engineering quality, reduces the repair work of concrete at the later stage, and avoids the investment of redundant work.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a building pipe well according to an embodiment of the invention.
Fig. 2 is a side view of a construction pipe well according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 and 2, the invention provides a post-pouring construction method for a floor slab at a building pipe well, which comprises the following steps:
s1: when the floor slab of the main building structure 1 is constructed, the supporting steel plate 2 is arranged at the pipe well of each floor slab of the main building structure, and the outer edge of the supporting steel plate 2 is embedded in the floor slab of the main building structure and connected with the steel bar structure of the floor slab of the main building structure.
In the embodiment, the supporting steel plate meets the bearing capacity load requirement of the whole pipe well and meets the corrosion prevention requirement. The support plate is required to cover the entire well. The support steel plate has a size 30mm larger than the size of the pipe well all around. The periphery of the supporting steel plate is tightly welded with a reinforcing mesh of a floor slab of the main building structure 1, and secondary anticorrosion treatment is carried out on the welding part.
S2: and positioning the installation position of the vertical pipeline on the supporting steel plate 2 at the bottom layer and forming a through hole at the installation position.
On the supporting steel plate of the bottom layer, the size and the position of the hole (perforation) are determined according to the size and the position of the vertical pipeline required to install the tube well. And (4) adopting a hole drilling machine to drill holes on the pre-buried supporting steel plate.
S3: and a vertically arranged embedded sleeve 3 is arranged in the through hole.
The lower part of the embedded sleeve 3 is provided with a lower flange, the lower flange is provided with a circle along the circumferential direction of the embedded sleeve 3, and the lower flange is connected with the supporting steel plate 2 in a sealing way.
The middle part of the embedded sleeve 3 is formed with a fixed wing ring which is connected with a steel bar structure of a floor slab at the building pipe well.
When the embedded sleeve is installed, the lower flange is connected to the through hole of the supporting steel plate in a sealing mode through welding, and the embedded sleeve is stably installed on the supporting steel plate.
In this embodiment, the lower end of the embedment sleeve extends below the support steel plate through the through hole of the support steel plate. The lower flange is away from the end face of the lower end opening of the embedded sleeve by a preset distance, and the lower flange abuts against the upper surface of the supporting steel plate.
S4: and taking the central point of the embedded sleeve 3 at the bottom layer as a reference point, sequentially forming through holes on the supporting steel plates 2 of the other floors from bottom to top, and installing the embedded sleeve 3 at the upper port of the through hole.
As a preferred embodiment, a positioning plate is fixedly arranged on the upper portion of the embedded casing 3 at the bottom layer, the positioning plate is marked with a cross line, the intersection point of the cross line coincides with the central axis of the embedded casing 3, a laser emitting device 4 is arranged at the intersection point, and the laser emitting device 4 emits a laser beam 41 upwards to position the axis point of the through hole of the supporting steel plate 2 at the rest of the floors.
In this embodiment, the positioning plate is covered on the end surface of the upper end of the installed embedded sleeve. And the positioning plate is fixedly and firmly stuck. The intersection point of the cross lines of the positioning plate is coincided with the circle center of the upper port of the embedded sleeve.
The laser emitting device is a laser level. Specifically, the laser level is a five-line laser level.
And cleaning the supporting steel plates of the bottom floor when positioning the through holes of the supporting steel plates of the rest floors. A tripod is erected right above the embedded sleeve on the supporting steel plate at the bottom layer, and a laser level is arranged on the tripod. The laser level starts and observes the bubble position of laser level, adjusts the height of tripod base stabilizer blade and makes the bubble be located the horizontal center, and the fixed tight hand wheel that locks makes equipment keep the level motionless.
And starting four vertical lines of the five-line laser level and the plumb points at the lower part of the five-line laser level, and adjusting the position of the tripod to ensure that the positions of the plumb points coincide with the intersection points of the crossed lines of the positioning plates on the embedded sleeves at the bottom layer. And finely adjusting the level meter again, when the level meter does not give out an alarm sound to represent that the level meter is horizontal at the moment, wherein the intersection point of the four vertical lines on the lower surface of the upper layer of the supporting steel plate is the center of the circle of the through hole of the upper layer of the supporting steel plate, and marking the center of the circle by using a mark pen.
And drawing the installation position of the embedded sleeve according to the circle center of the positioned through hole of the upper layer supporting steel plate. Drawing the radius according to the size of the sleeve, fixing the embedded sleeve on the upper layer at the position and ensuring firm installation.
And repeating the steps, and mounting the embedded sleeves layer by layer from bottom to top.
S5: concrete is poured on the supporting steel plates 2 of each layer to be solidified to form the floor slab at the pipe well of the building.
And after the embedded sleeves on each layer are installed, a steel bar structure is installed on the supporting steel plate, and concrete is poured.
After the concrete on the supporting steel plate is poured to reach the preset strength, laser positioning measurement is carried out on the verticality of the embedded sleeves of all layers after installation, the verticality deviation is guaranteed to be no more than 10mm, and the installation deviation of each layer of sleeves is approved and corrected.
According to the construction method for post-pouring of the floor slab at the building pipe well, the embedded sleeve and the supporting steel plate are connected in a (welding) fixed connection mode, so that the displacement of the sleeve in the traditional floor slab pouring process is avoided, the levelness and the verticality of the embedded sleeve can be ensured, and the construction quality of the embedded sleeve is improved.
The construction process of the construction method for post-pouring the floor slab at the building pipe well can be directly operated on the pre-installed supporting steel plate, thereby avoiding the installation risk of the traditional ascending lifting die and shortening the construction time.
The specification and model of the pre-embedded supporting steel plate used by the construction method for post-pouring the floor slab at the building pipe well can be flexibly adjusted according to the load bearing capacity and thickness required by the slab surface of the floor slab so as to be suitable for different floor slab thicknesses, the operation is convenient, and the attractiveness of floor or wall plugging is improved.
According to the construction method for post-pouring of the floor slab at the building pipe well, the original wood formwork supporting structure is replaced by the supporting steel plate with certain strength pre-buried during structural construction, the strength is higher, an additional formwork bottom supporting system is not needed, the construction difficulty is reduced, the construction is more convenient and faster, the condition that the traditional wood formwork expands in the concrete pouring process is avoided, the construction quality is improved, and the plugging efficiency of the pipe well is improved.
The construction method for post-pouring the floor slab at the building pipe well effectively reduces the time required by positioning the casing pipe, improves the efficiency, greatly improves the accuracy of positioning the casing pipe, avoids picking and chiseling the structural beam slab at the later stage, improves the engineering quality, reduces the repair work of concrete at the later stage, and avoids the investment of redundant work.
According to the post-pouring construction method for the floor slab at the building pipe well, the upper layer of sleeve can be accurately positioned by adopting a laser positioning mode according to the position of the bottom layer of mounting sleeve, and the concentric verticality of the upper layer of sleeve and the lower layer of sleeve can be ensured to be strictly controlled within an allowable deviation range.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (5)

1. A post-pouring construction method for a floor slab at a building pipe well is characterized by comprising the following steps:
when the building main structure floor slab is constructed, a supporting steel plate is arranged at the pipe well of each layer of the building main structure floor slab, and the outer edge of the supporting steel plate is embedded in the building main structure floor slab and connected with a steel bar structure of the building main structure floor slab;
positioning the installation position of the vertical pipeline on the supporting steel plate at the bottom layer and forming a through hole at the installation position;
installing a vertically arranged embedded sleeve in the through hole;
taking the central point of the embedded sleeve at the bottom layer as a reference point, sequentially forming through holes on the supporting steel plates of the other floors from bottom to top, and installing the embedded sleeve at the upper port of the through hole;
and pouring concrete on the supporting steel plate of each layer to form a floor slab at the pipe well of the building in a solidified mode.
2. The post-pouring construction method for the floor slab at the building pipe well according to claim 1, wherein a positioning plate is fixedly arranged on the upper portion of the embedded casing at the bottom layer before the embedded casing at the rest of the floors is installed, cross lines are marked on the positioning plate, the intersection point of the cross lines is coincident with the central axis of the embedded casing, a laser emitting device is arranged at the intersection point, and the laser emitting device emits laser beams upwards to position the axis center point of the through hole of the supporting steel plate at the rest of the floors.
3. The construction method of post-pouring of the floor slab at the building pipe well according to claim 2, characterized in that the laser emitter is a laser level gauge.
4. The construction method of post-pouring of the floor slab at the building pipe well according to claim 1, wherein a lower flange is formed at the lower portion of the embedded sleeve, a circle of the lower flange is arranged along the circumferential direction of the embedded sleeve, and the lower flange is connected to the supporting steel plate in a sealing manner.
5. The construction method of post-pouring of the floor slab at the building pipe well according to claim 1, wherein a fixed wing ring is formed at the middle part of the embedded sleeve, and the fixed wing ring is connected to a steel bar structure of the floor slab at the building pipe well.
CN202210630481.9A 2022-06-06 2022-06-06 Post-pouring construction method for floor slab at building pipe well Pending CN114856195A (en)

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CN202210630481.9A CN114856195A (en) 2022-06-06 2022-06-06 Post-pouring construction method for floor slab at building pipe well

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Application Number Priority Date Filing Date Title
CN202210630481.9A CN114856195A (en) 2022-06-06 2022-06-06 Post-pouring construction method for floor slab at building pipe well

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116397904A (en) * 2023-06-08 2023-07-07 山西三建集团有限公司 Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204418667U (en) * 2015-01-19 2015-06-24 平煤神马建工集团有限公司土建处 A kind of infrared rays accurately locates reserving hole device
CN106958313A (en) * 2017-04-01 2017-07-18 中建局集团第三建筑有限公司 Floor closed system and its construction method are poured after a kind of pipe well
WO2020118563A1 (en) * 2018-12-12 2020-06-18 大连理工大学 Design and rapid construction methods for flush assembly of prefabricated steel beams and floor
CN214942026U (en) * 2021-07-24 2021-11-30 武汉建工集团股份有限公司 Pipe well prefabricated plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204418667U (en) * 2015-01-19 2015-06-24 平煤神马建工集团有限公司土建处 A kind of infrared rays accurately locates reserving hole device
CN106958313A (en) * 2017-04-01 2017-07-18 中建局集团第三建筑有限公司 Floor closed system and its construction method are poured after a kind of pipe well
WO2020118563A1 (en) * 2018-12-12 2020-06-18 大连理工大学 Design and rapid construction methods for flush assembly of prefabricated steel beams and floor
CN214942026U (en) * 2021-07-24 2021-11-30 武汉建工集团股份有限公司 Pipe well prefabricated plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116397904A (en) * 2023-06-08 2023-07-07 山西三建集团有限公司 Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building
CN116397904B (en) * 2023-06-08 2023-08-08 山西三建集团有限公司 Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building

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