CN111779147A - Advanced water stop structure of roof post-cast strip - Google Patents

Advanced water stop structure of roof post-cast strip Download PDF

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Publication number
CN111779147A
CN111779147A CN202010580867.4A CN202010580867A CN111779147A CN 111779147 A CN111779147 A CN 111779147A CN 202010580867 A CN202010580867 A CN 202010580867A CN 111779147 A CN111779147 A CN 111779147A
Authority
CN
China
Prior art keywords
post
cast strip
water stop
roof
cast
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
CN202010580867.4A
Other languages
Chinese (zh)
Inventor
马跃强
徐铭泽
张永
徐飞飞
张纬伦
陆冬兴
董建国
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.)
Shanghai Construction No 2 Group Co Ltd
Original Assignee
Shanghai Construction No 2 Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Construction No 2 Group Co Ltd filed Critical Shanghai Construction No 2 Group Co Ltd
Priority to CN202010580867.4A priority Critical patent/CN111779147A/en
Publication of CN111779147A publication Critical patent/CN111779147A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/16Arrangement or construction of joints in foundation structures
    • 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
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints
    • E04B1/6801Fillings therefor
    • 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
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints
    • E04B1/6806Waterstops

Abstract

The invention provides a roof post-cast strip advanced water stop structure, which comprises: post-pouring a belt; the isolation pieces are arranged on the post-cast strip to prevent concrete from entering the post-cast strip during casting, extend along the two transverse sides of the post-cast strip and at least partially exceed the post-cast strip; and the water stopping piece is arranged on the isolating piece and used for stopping the post-cast strip in advance, and the water stopping piece and the top plate are poured together. According to the advanced water stop structure for the roof post-cast strip, advanced water stop measures are arranged on the basis of the traditional roof post-cast strip construction process, so that a steel bar piece and a water stop steel plate of a rear foot strip are prevented from being corroded by the natural environment, and the later structural stress is facilitated. This roof post-cast strip advance stagnant water structure overall structure is simple, and the construction of being convenient for is favorable to reducing later stage roof fracture and infiltration risk.

Description

Advanced water stop structure of roof post-cast strip
Technical Field
The invention relates to a top plate post-cast strip sealing process, in particular to a top plate post-cast strip advanced water stopping structure.
Background
The post-cast strip is the key of the construction technology of cast-in-place concrete of the top plate of the underground garage and is an important guarantee for preventing the cast-in-place concrete structure from cracking and leaking due to uneven settlement of the underground garage. Therefore, how to avoid cracking and leakage at the post-cast strip in a cast-in-place concrete structure is an important subject faced by civil engineering engineers, and the improvement of the process directly promotes the development of the post-cast strip construction process.
The structural safety and the use function of the underground garage are ensured in order to ensure that the roof of the garage is cracked and leaked due to uneven settlement in group buildings or large-span garages. In practical engineering, the underground garage is generally used for avoiding the situation by adopting a method of arranging a post-cast strip. This is usually solved by providing a form of post-cast strip. However, these post-cast strips increase the leakage risk due to the existence of construction joints, and are prone to be the most main part of the leakage of the top plate of the underground garage due to long-term exposure of the construction joints, corrosion of steel bars and water-stop steel plates, and subjective uncertainty of later manual operation. Therefore, the existing post-cast strip technology should be improved on the water-stopping design, and the increase of leakage caused by long-term exposure of construction joints, corrosion of steel bars and water-stopping steel plates and subjective uncertainty of later manual operation is avoided as much as possible.
The post-cast strip is composed of steel bars, concrete and a water stop steel plate, and the post-cast strip can be cast after the casting time of the post-cast strip is separated from the main body for a period of time. Before that, the water stop steel plate of the post-cast strip is eroded by the natural environment for a long time. Before the concrete of the post-cast strip is poured, the two sides of the post-cast strip are both cantilever structures, the loads on the two sides of the post-cast strip must be strictly controlled, otherwise, the instability and the damage under the designed section can be caused due to the increase of the negative bending moment. At present, the problems of cracking and leakage of a top plate of a ground reservoir caused by corrosion of a steel bar and a water stop steel plate due to long-term exposure of a construction joint and subjective uncertainty of later manual operation exist in post-cast strip construction. The core problem of ensuring that the post-cast strip does not leak is to solve the problem of long-term exposure of construction joints so as to reduce the later hidden danger.
Therefore, there is a need for an advanced water stopping technique that protects the post-cast strip portion from long-term exposure to the elements and reduces the rolling damage to the construction joint location due to construction transportation.
Disclosure of Invention
In view of this, the invention provides a roof post-cast strip advanced water stop structure which can protect a post-cast strip from natural erosion and damage in a construction process.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to the advanced water stop structure of the roof post-cast strip provided by the embodiment of the invention, the roof is provided with a water facing surface, and the advanced water stop structure of the roof post-cast strip comprises the following components:
post-pouring a belt;
the isolation pieces are arranged on the post-cast strip to prevent concrete from entering the post-cast strip during casting, extend along the two transverse sides of the post-cast strip and at least partially exceed the post-cast strip;
and the water stopping piece is arranged on the isolating piece and used for stopping the post-cast strip in advance, and the water stopping piece and the top plate are poured together.
Further, the post-cast strip includes:
the plurality of steel bar pieces form a post-cast strip frame for pouring slurry;
a plurality of water stop steel plates disposed in rows at opposite sides of the post-cast strip frame at intervals.
Further, a plurality of the pieces of rebar include: the post-cast strip frame comprises upright steel bars, horizontal steel bars and diagonal steel bars, wherein the upright steel bars, the horizontal steel bars and the diagonal steel bars form the post-cast strip frame.
Further, the post-cast strip further comprises: and the steel wire mesh sheets are arranged in rows on two sides of the water stop steel plate, wherein the water stop steel plate is arranged on the post-cast strip.
Furthermore, the post-cast strip is formed by densely pouring UPHC grouting material.
Further, the separator is a polystyrene board.
Further, the thickness of the polyphenyl plate is 30mm-40 mm.
Further, the size of the separator exceeding the post-pouring strip is 90mm-110 mm.
Further, the water stop piece is a buried rubber water stop.
Furthermore, a plurality of material filling holes which are arranged at intervals are further formed in the advanced water stopping structure.
The technical scheme of the invention has the following beneficial effects:
according to the advanced water stop structure for the roof post-cast strip, advanced water stop measures are arranged on the basis of the traditional roof post-cast strip construction process, so that a steel bar piece and a water stop steel plate of a rear foot strip are prevented from being corroded by the natural environment, and the later structural stress is facilitated. This roof post-cast strip advance stagnant water structure overall structure is simple, and the construction of being convenient for is favorable to reducing later stage roof fracture and infiltration risk.
Drawings
Fig. 1 is a schematic structural view of a roof post-cast strip advanced water stop structure according to an embodiment of the present invention;
FIG. 2 is another schematic structural diagram of a roof post-cast strip advanced water stop structure according to an embodiment of the invention;
fig. 3 is a schematic view of a post-cast hole of a roof post-cast strip advanced water stop structure according to an embodiment of the invention.
Reference numerals:
upright column steel bars 11; horizontal reinforcing steel bars 12; diagonal bracing reinforcement 13; a water stop steel plate 14; a steel mesh sheet 15; a post-cast hole 16;
a spacer 20;
a water stop 30;
a top plate 40; the upstream face 41.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
The following specifically describes a roof post-cast strip advanced water stopping structure according to an embodiment of the present invention with reference to the accompanying drawings.
According to the advanced water stopping structure of the roof post-cast strip, the roof 40 is provided with a water facing surface 41, and the advanced water stopping structure of the roof post-cast strip comprises a post-cast strip, a partition part 20 and a water stopping part 30.
Specifically, the spacers 20 are provided on the post-cast strip to prevent concrete from entering the post-cast strip when casting. The spacers 20 extend along both lateral sides of the post-cast strip and at least partially beyond the post-cast strip. And the water stop piece 30 is arranged on the partition piece 20, the water stop piece 30 is used for performing advanced water stop on the post-cast strip, and the water stop piece 30 and the top plate 40 are poured together.
In other words, referring to fig. 1 to 3, according to the advanced water stop structure of the roof post-cast strip of the embodiment of the invention, the roof 40 has a water facing surface 41, and the application aims to provide an advanced water stop measure on the basis of the traditional roof post-cast strip construction process, so that the advanced soil return construction of the roof of the basement is facilitated, the construction period is saved, and meanwhile, the water inflow of the basement is reduced in the construction process.
Referring to fig. 1 and 2, the roof post-cast strip advanced water stopping structure mainly comprises a post-cast strip, a partition member 20 and a water stopping member 30. Wherein the spacers 20 are mounted on the post-cast strip to prevent concrete from entering the post-cast strip during casting. That is, the upstream surface 41 of the roof panel 40 (above the post-cast strip) may be isolated by the partition 20 to prevent concrete from entering the post-cast strip when the leading water-stop portion is poured. The horizontal both sides that the barrier member 20 can follow the post-cast strip extend to the part that the barrier member 20 extended to the post-cast strip both sides surpasss the post-cast strip, concrete entering post-cast strip when further effectively preventing to pour, can also make simultaneously the reinforcing bar spare in the post-cast strip and stagnant water steel sheet 14 avoid the natural environment to corrode, do benefit to later stage structure atress. The middle position of the top plate 40 is provided with the water stop piece 30, the water stop piece 30 is arranged on the partition piece 20, the water stop piece 30 is used for conducting advanced water stop on the post-pouring belt, the water stop piece 30 and the top plate 40 are poured together, and the later-stage top plate 40 cracking and leakage risks are reduced beneficially.
Therefore, the advanced water stopping structure of the top plate post-cast strip is provided with advanced water stopping measures on the basis of the traditional construction process of the top plate post-cast strip, so that the reinforcing steel bar piece of the rear foot strip and the water stopping steel plate 14 are prevented from being corroded by the natural environment, and the later structural stress is facilitated. This roof post-cast strip advance stagnant water structure overall structure is simple, and the construction of being convenient for is favorable to reducing later stage roof 40 fracture and infiltration risk.
According to one embodiment of the present invention, the post-cast strip includes a plurality of reinforcing members and a plurality of water stop steel plates 14.
Specifically, a plurality of steel bar members constitute a post-cast strip frame for casting a slurry. A plurality of water stop steel plates 14 are arranged in rows spaced apart on opposite sides of the post-cast strip frame. The plurality of rebar pieces includes: the post-cast strip frame comprises upright steel bars 11, horizontal steel bars 12 and diagonal steel bars 13, wherein the upright steel bars 11, the horizontal steel bars 12 and the diagonal steel bars 13 form a post-cast strip frame. The post-cast strip still includes: a plurality of wire net piece 15, a plurality of wire net piece 15 set up in a row on the both sides that are equipped with stagnant water steel sheet 14 on the post-cast strip.
That is, referring to fig. 1, the post-cast strip is mainly composed of a plurality of reinforcing steel members and a plurality of water stop steel plates 14. A plurality of reinforcing bar spare constitute post-cast strip frame, and post-cast strip frame can be used for pouring the thick liquids. A plurality of post-cast holes 16 (see fig. 3) may be formed in the post-cast strip, and the number of the post-cast holes 16 may be specifically set according to specific situations. Wherein, a plurality of reinforcing bar spare mainly comprise stand reinforcing bar 11, horizontal reinforcement 12 and bracing reinforcing bar 13, and stand reinforcing bar 11, horizontal reinforcement 12 and bracing reinforcing bar 13 can constitute the post-cast strip frame. Through setting up the post-cast strip frame that comprises stand reinforcing bar 11, horizontal reinforcement 12 and bracing reinforcing bar 13, can effectively improve the structural stress. The plurality of water stop steel plates 14 can be arranged on two opposite sides of the post-cast strip frame in rows at intervals, construction joints on two sides of the post-cast strip position can adopt 300-by-3 water stop steel plates 14, and concrete can be poured on two sides in advance. The post-cast strip still includes: a plurality of wire net piece 15, a plurality of wire net piece 15 set up in a row on the both sides that are provided with stagnant water steel sheet 14 on the post-cast strip.
In some embodiments of the present invention, the post-cast strip may be densely cast with UPHC grouting material, where UPHC is an ultra-high performance concrete, and is understood and implemented by those skilled in the art, and will not be described in detail in this application.
According to one embodiment of the invention, the spacer 20 is a polystyrene board. The thickness of the polyphenyl plate is 30mm-40 mm. The dimension of the separator 20 beyond the post-cast strip is 90mm to 110 mm. That is, the partition 20 may be formed of an extruded polystyrene board to prevent concrete from entering the post-cast strip when the leading water-stop portion is cast. The thickness of the polystyrene plate may be 30mm to 40mm, preferably 35 mm. The spacers 20 (extruded polystyrene boards) may have a dimension of 90mm to 110mm, preferably 100mm, beyond the post-cast tape on each side.
According to one embodiment of the invention, referring to fig. 1 and 2, the water stop 30 is a buried rubber water stop. The advanced water stopping structure is also provided with a plurality of material filling holes which are arranged at intervals. That is, the water stop 30 may be a buried rubber water stop, the top plate 40 is provided with an advanced water stop, and the buried rubber water stop is buried in the middle. The leading water-stop part is poured together with the top plate 40, and 1500-2000 material pouring holes which are arranged at intervals are arranged for material pouring.
In summary, the advanced water stopping structure of the roof post-cast strip is provided with advanced water stopping measures on the basis of the traditional roof post-cast strip construction process, so that the reinforcing steel bar piece of the rear foot strip and the water stopping steel plate 14 are prevented from being corroded by the natural environment, and the later structural stress is facilitated. This roof post-cast strip advance stagnant water structure overall structure is simple, and the construction of being convenient for is favorable to reducing later stage roof 40 fracture and infiltration risk.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "illustrative embodiments," "preferred embodiments," "detailed description," or "preferred embodiments" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should be construed as the protection scope of the present invention.

Claims (10)

1. The utility model provides a roof post-cast strip leads stagnant water structure, roof have the upstream face, its characterized in that includes:
post-pouring a belt;
the isolation pieces are arranged on the post-cast strip to prevent concrete from entering the post-cast strip during casting, extend along the two transverse sides of the post-cast strip and at least partially exceed the post-cast strip;
and the water stopping piece is arranged on the isolating piece and used for stopping the post-cast strip in advance, and the water stopping piece and the top plate are poured together.
2. The roof slab post-cast strip advance water stop structure according to claim 1, characterized in that the post-cast strip includes:
the plurality of steel bar pieces form a post-cast strip frame for pouring slurry;
a plurality of water stop steel plates disposed in rows at opposite sides of the post-cast strip frame at intervals.
3. The roof strip post-cast strip advance water stop structure according to claim 2, wherein the plurality of reinforcing steel members include: the post-cast strip frame comprises upright steel bars, horizontal steel bars and diagonal steel bars, wherein the upright steel bars, the horizontal steel bars and the diagonal steel bars form the post-cast strip frame.
4. The roof slab post-cast strip advance water stop structure according to claim 2, wherein the post-cast strip further comprises: and the steel wire mesh sheets are arranged in rows on two sides of the water stop steel plate, wherein the water stop steel plate is arranged on the post-cast strip.
5. The roof post-cast strip advanced water stop structure as claimed in claim 1, wherein the post-cast strip is densely poured by UPHC grouting material.
6. The structure of leading water stop of roof strip post-cast of claim 1, characterized in that the spacer is a polystyrene board.
7. The roof post-cast strip advanced water stop structure as claimed in claim 6, wherein the thickness of the polyphenyl plate is 30mm-40 mm.
8. The roof slab post-cast strip advance water stop structure according to claim 1, wherein a dimension of the partition beyond the post-cast strip is 90mm to 110 mm.
9. The roof post-cast strip advanced water stop structure according to claim 1, wherein the water stop is a buried rubber water stop.
10. The advanced water stop structure of the roof post-cast strip as claimed in claim 1, wherein the advanced water stop structure is further provided with a plurality of spaced-apart material pouring holes.
CN202010580867.4A 2020-06-23 2020-06-23 Advanced water stop structure of roof post-cast strip Pending CN111779147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010580867.4A CN111779147A (en) 2020-06-23 2020-06-23 Advanced water stop structure of roof post-cast strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010580867.4A CN111779147A (en) 2020-06-23 2020-06-23 Advanced water stop structure of roof post-cast strip

Publications (1)

Publication Number Publication Date
CN111779147A true CN111779147A (en) 2020-10-16

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Application Number Title Priority Date Filing Date
CN202010580867.4A Pending CN111779147A (en) 2020-06-23 2020-06-23 Advanced water stop structure of roof post-cast strip

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112854491A (en) * 2021-01-05 2021-05-28 中国十七冶集团有限公司 Waterproof construction method for post-cast strip of planted roof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2320001A2 (en) * 2009-10-27 2011-05-11 Pino Albanese Device for producing a partial stop end and/or an expansion joint stop end on a concrete structure
CN105350581A (en) * 2015-10-10 2016-02-24 中建二局第二建筑工程有限公司 Advanced sealing structure for basement top slab settlement post-cast strips
CN206599798U (en) * 2016-12-19 2017-10-31 江苏龙腾工程设计股份有限公司 Advanced water-stop post-pouring belt of foundation slab structure
CN207998873U (en) * 2018-01-17 2018-10-23 高文杰 Basement bottom plate rear pouring tape structure
CN109537635A (en) * 2018-11-30 2019-03-29 中衡卓创国际工程设计有限公司 Top plate of underground parking garage waterproofing of movement joints node and method of construction
CN109797874A (en) * 2019-03-13 2019-05-24 秦山伟业建设集团有限公司 A kind of high level Multi-tower post-cast strip advance water stop construction method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2320001A2 (en) * 2009-10-27 2011-05-11 Pino Albanese Device for producing a partial stop end and/or an expansion joint stop end on a concrete structure
CN105350581A (en) * 2015-10-10 2016-02-24 中建二局第二建筑工程有限公司 Advanced sealing structure for basement top slab settlement post-cast strips
CN206599798U (en) * 2016-12-19 2017-10-31 江苏龙腾工程设计股份有限公司 Advanced water-stop post-pouring belt of foundation slab structure
CN207998873U (en) * 2018-01-17 2018-10-23 高文杰 Basement bottom plate rear pouring tape structure
CN109537635A (en) * 2018-11-30 2019-03-29 中衡卓创国际工程设计有限公司 Top plate of underground parking garage waterproofing of movement joints node and method of construction
CN109797874A (en) * 2019-03-13 2019-05-24 秦山伟业建设集团有限公司 A kind of high level Multi-tower post-cast strip advance water stop construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112854491A (en) * 2021-01-05 2021-05-28 中国十七冶集团有限公司 Waterproof construction method for post-cast strip of planted roof

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