CN109024699B - Integral water stop system and manufacturing method thereof - Google Patents
Integral water stop system and manufacturing method thereof Download PDFInfo
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- CN109024699B CN109024699B CN201811028197.4A CN201811028197A CN109024699B CN 109024699 B CN109024699 B CN 109024699B CN 201811028197 A CN201811028197 A CN 201811028197A CN 109024699 B CN109024699 B CN 109024699B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The invention relates to the field of expansion joint post-cast strip water stop systems, in particular to an integral water stop system and a manufacturing method thereof. The integral water stopping system provided by the invention is used for being arranged at a post-cast strip to play a water stopping role, and the manufacturing method of the water stopping system mainly comprises the following steps: and manufacturing rectangular steel bar frameworks, respectively welding the two steel bar frameworks to two sides of the water stop plate, inserting the water stop plate and the steel bar frameworks between the bottom steel bar mesh and the surface steel bar mesh, respectively fixedly connecting the steel bar frameworks on two sides of the water stop plate with the bottom steel bar mesh and the surface steel bar mesh, and enabling the length of the water stop plate to be larger than or equal to that of the steel bar frameworks. The two steps of manufacturing the water stop belt and the structural steel bar can be carried out simultaneously without mutual interference, so that the construction period is saved, the construction progress is accelerated, and a large amount of time can be saved when the water stop belt is manufactured in advance and finally the water stop system is manufactured on site.
Description
Technical Field
The invention relates to the field of expansion joint post-cast strip water stopping systems, in particular to an integral water stopping system and a manufacturing method thereof.
Background
Along with the development of urban construction in China, the building scale is continuously increased, the structural form is more complex and diversified, especially, the structures of ultralong and ultradeep basements in multi-storey and high-rise buildings are more and more, in order to prevent a cast-in-place reinforced concrete structure from generating harmful cracks due to nonuniform self shrinkage or nonuniform settlement, temporary construction joints need to be reserved according to the requirements of design or construction specifications, after the structure is shrunk stably or the foundation condition is stable, secondary pouring is carried out to fill the temporary construction joints, so that the building structures are connected into a whole, and the integrity of the structure is ensured.
However, when the construction joint is located at a position where water is easy to seep, such as a wall surface and a bottom plate in a basement, the impermeability of the structure needs to be considered. Because the structure is divided into two times of pouring, a cold joint is easily formed between the post-cast strip and the cast-in-place structure, and in order to prevent water from seeping from the cold joint, a water-stop steel plate is often arranged at the position of the cold joint to prevent water seepage and improve the anti-seepage performance.
Traditional post-cast strip stagnant water steel sheet installation, generally make bottom reinforcing bar net earlier, welding the reinforcing bar on bottom reinforcing bar net afterwards, make it form the first layer framework of steel bar net of roughly perpendicular to bottom, then the fast easy binding off net of ligature is as the template of side direction on first layer framework of steel bar, set up the stagnant water steel sheet and weld on first layer framework of steel bar net parallel to bottom, stagnant water steel sheet stretches into the position of cast-in-place component on one side, stretch into the position of post-cast strip on one side, then weld the reinforcing bar above stagnant water steel sheet, make it form second layer framework of steel bar, and bind the fast easy binding off net on second layer framework of steel bar, then at the fixed surface course reinforcing bar net of top binding, whole work progress is 4 days to 5 days consuming time, it is long, the construction progress is slow.
Disclosure of Invention
The invention aims to provide a manufacturing method of an integral water stop system, and aims to solve the problems that construction of a water stop belt in the prior art is long in time consumption and slow in progress.
The invention aims to provide an integral water stopping system which is used for being arranged at a post-cast strip to play a water stopping role, is convenient to install and can accelerate the construction progress.
The embodiment of the invention is realized by the following steps:
the embodiment of the invention provides a manufacturing method of an integral water stopping system, which comprises the following steps: and manufacturing rectangular steel bar frameworks, respectively welding the two steel bar frameworks to two sides of the water stop plate, inserting the water stop plate and the steel bar frameworks between the bottom steel bar mesh and the surface steel bar mesh, respectively fixedly connecting the steel bar frameworks on two sides of the water stop plate with the bottom steel bar mesh and the surface steel bar mesh, and enabling the length of the water stop plate to be larger than or equal to that of the steel bar frameworks.
The water stop belt is firstly processed into a whole, and is directly inserted between the bottom layer reinforcing mesh and the surface layer reinforcing mesh when in use, and then the water stop belt is fixed to form the water stop system. Therefore, the three processes of water stop belt processing, bottom layer reinforcing mesh processing and surface layer reinforcing mesh processing can be carried out simultaneously, the construction progress can be greatly shortened, and the time consumption is reduced.
In an embodiment of the invention, in order to stabilize the steel reinforcement framework and the water stop plate and prevent the steel reinforcement framework and the water stop plate from being deformed by being extruded by concrete during pouring of the cast-in-place member, inclined supports are further arranged on two sides of the steel reinforcement framework, one end of each inclined support is connected with the steel reinforcement framework, and the other end of each inclined support is connected with the water stop plate.
In an embodiment of the invention, further, a template for blocking the hollowed-out part is arranged on the steel reinforcement framework, and the template is used for closing the cast-in-place member.
In an embodiment of the invention, the formwork is a steel wire mesh, the steel reinforcement framework is wrapped by the steel wire mesh, and the steel wire mesh is fixedly connected with the steel reinforcement framework. According to the invention, the steel bar framework, the water stop plate and other sub-components are manufactured firstly, and then the sub-components are connected into the integrated water stop belt, so that the steel bar framework can be wrapped by the steel wire mesh when being manufactured, and the steel wire mesh is used as a closing template. Therefore, compared with the mode that the template and the steel reinforcement framework can only be bound and fixed in the prior art, the steel wire mesh and the steel reinforcement framework are connected more firmly, the construction process is simple and convenient, and the steel wire mesh is not easy to damage under the pressure of concrete to cause a die explosion phenomenon.
In one embodiment of the invention, in order to achieve better waterproof effect and avoid water seepage from the surface layer as much as possible, the water stop plate is further bent towards the bottom layer reinforcing mesh in a direction parallel to two edges of the reinforcing cage, and the bending angle is less than 90 degrees.
In an embodiment of the invention, in order to better play a role of water stopping, further, the length of the water stopping plate is greater than that of the steel reinforcement framework, and two ends of the water stopping plate extend out of the steel reinforcement framework in the length direction; the steel bar frameworks of adjacent water stop belts are contacted and fixed, the extending parts of the water stop plates are overlapped and hermetically connected, and the connecting parts of the water stop plates are overlapped and then hermetically connected, so that the waterproof effect of the connecting parts can be enhanced.
In an embodiment of the present invention, further, the reinforcing bars at both ends of the reinforcing bar framework are bent to form round corners. Through buckling into the fillet with the reinforcing bar at reinforcing bar skeleton both ends, be favorable to reducing reinforcing bar skeleton and face course reinforcing bar net or bottom reinforcing bar and take place to interfere, insert the waterstop smoothly between face course reinforcing bar and the bottom reinforcing bar.
In an embodiment of the invention, further, the steel bar frameworks are staggered, the steel bar framework connected with the bottom steel bar mesh is close to the post-cast strip, and the steel bar framework connected with the surface steel bar mesh is far away from the post-cast strip, so that the end surface of the cast-in-place member is in a step shape, the post-cast strip is wide close to the surface layer and narrow close to the bottom layer, even if the cast-in-place member and the post-cast strip form a cold joint, the path of the cold joint from the bottom layer to the outer layer is curved and is not directly communicated to the bottom layer, and therefore, the water seepage from the surface layer can be further avoided.
In an embodiment of the invention, further, for convenience of installation, the water stops are arranged in pairs, and the reinforcing steel bar frameworks of the two water stops are fixedly connected by the supporting rod, so that the water loss belts on two sides of the post-cast belt are installed at the same time.
An integral water stop system is manufactured by adopting the method. The water stopping system is used for being arranged at a post-cast strip to play a water stopping role, is convenient to install, and can accelerate the construction progress.
The beneficial effects of the invention include:
the manufacturing method of the water stop system mainly comprises the steps of manufacturing the water stop belt, manufacturing the structural steel bars and manufacturing the water stop system, wherein the steps of manufacturing the water stop belt and the structural steel bars can be carried out simultaneously without mutual interference, so that the construction period is saved, the construction progress is accelerated, and a large amount of time can be saved when the water stop belt is manufactured in advance and finally the water stop system is manufactured on site.
The water stopping system provided by the invention has an integral water stopping belt, is convenient to install, and can accelerate the construction progress.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flowchart of a manufacturing process of a water stop system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a water stop system provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another view of the water stop system according to the embodiment of the present invention;
fig. 4 is a schematic structural view of a water stop provided in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a water stop according to another view angle provided in embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a steel reinforcement cage according to embodiment 1 of the present invention;
fig. 7 is a schematic structural view of a water stop provided in embodiment 2 of the present invention;
icon: 100-water stop plate; 200-a first layer of steel reinforcement framework; 300-a second layer of steel reinforcement framework; 400-steel wire mesh; 500-oblique supporting; 600-a support bar; 700-bottom layer reinforcing mesh; 800-surface layer reinforcing mesh; 900-third layer reinforcement cage.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if 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 or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The fixed connection in the embodiment of the invention mainly adopts welding. The integral water stop system can be mainly used for water stop of reinforced concrete slabs or shear walls, and the reinforced concrete slabs are taken as an example below.
Example 1
An integral water stop system is used for being arranged at a post-cast strip to play a water stop role, is convenient to install and can accelerate the construction progress.
Referring to fig. 4 and 5, the integral water stop system includes a steel reinforcement framework, a water stop plate 100 and a water stop belt made of a steel wire mesh 400.
Referring to fig. 6, the steel bar framework is rectangular, and two ends of the steel bars of the steel bar framework are bent back to form round corners.
Referring to fig. 6, a steel wire mesh 400 is disposed on a steel reinforcement framework and used as a formwork for casting a cast-in-place member, and the density of the steel wire mesh 400 is determined by that coarse aggregate of concrete corresponding to the cast-in-place member cannot pass through the steel wire mesh.
Referring to fig. 1, the method for manufacturing the integral water stop system includes:
manufacturing water stop
S111: manufacturing at least two steel bar frameworks, referring to fig. 6, arranging two or more equal-length steel bars in parallel, and fixedly connecting the parallel equal-length steel bars by using short steel bars to form a rectangular steel bar framework.
S112: and binding the steel wire mesh 400, winding and wrapping the steel reinforcement framework by using the steel wire mesh 400, and then binding and fixing the steel wire mesh 400 on the steel reinforcement framework by using a steel wire.
S113: referring to fig. 5, the water stop plate 100 is made by bending two edges of the water stop plate 100 parallel to the steel bar framework downward at an angle smaller than 90 °.
S114: the water stop is manufactured, the steel bar frameworks bound with the steel wire meshes 400 are fixedly connected to two sides of the water stop plate 100 respectively, in the embodiment, the steel bar framework fixed below the water stop plate 100 is called a first layer steel bar framework 200, and the steel bar framework fixed above the water stop plate 100 is called a second layer steel bar framework 300.
Manufacturing structural steel bar
S115: binding a bottom layer reinforcing mesh 700 and a surface layer reinforcing mesh 800;
s116: erecting a vertical surface reinforcing mesh 800 and a bottom reinforcing mesh 700 by using split heads;
manufacturing water stopping system
S117: referring to fig. 2 and 3, the water stop is inserted between the top-layer steel bar mesh 800 and the bottom-layer steel bar mesh 700, the first-layer steel bar framework 200 is fixedly connected with the bottom-layer steel bar mesh 700, and the second-layer steel bar framework 300 is fixedly connected with the top-layer steel bar mesh 800.
The post-cast strip generally has two edges which need to be closed and sealed, the two water-stop strips are arranged in pairs, for the convenience of installation, preferably, referring to fig. 2, the steel bar frameworks of the two water-stop strips are fixedly connected into a whole by a support rod 600, and then the two water-stop strips are inserted between the surface layer steel bar mesh 800 and the bottom layer steel bar mesh 700 together.
It is worth noting that:
the manufacturing method mainly comprises the steps of manufacturing the water stop, manufacturing the structural steel bars and manufacturing the water stop system, wherein the two steps of manufacturing the water stop and manufacturing the structural steel bars can be carried out simultaneously without mutual interference, so that the construction period is shortened, the construction progress is accelerated, and a large amount of time can be saved when the water stop system is manufactured on site finally due to the fact that the water stop is manufactured in advance.
In addition, referring to fig. 1, while welding the steel bar framework and binding the steel bar mesh, the water stop plate 100 can be simultaneously manufactured, so that the construction period is further shortened, and the construction progress is accelerated.
The invention firstly processes the water stop into a whole, when in use, the water stop is directly inserted between the bottom layer reinforcing mesh 700 and the surface layer reinforcing mesh 800 and then fixed to form the water stop system. Therefore, the three processes of water stop belt processing, bottom layer reinforcing mesh processing and surface layer reinforcing mesh processing can be carried out simultaneously, the construction progress can be greatly shortened, and the time consumption is reduced.
In order to stabilize the steel bar framework and the water stop plate 100, the steel bar framework is not easily deformed by the extrusion of concrete when the cast-in-place member is poured, and further, referring to fig. 5, two sides of the steel bar framework are provided with oblique supports 500, one end of each oblique support 500 is connected with the steel bar framework, and the other end of each oblique support is connected with the water stop plate 100.
In order to better perform the water stopping function, please refer to fig. 4, further, the length of the water stopping plate 100 is greater than the length of the steel reinforcement framework, and both ends of the water stopping plate 100 extend out of the steel reinforcement framework. When the water stop system is manufactured, the steel bar frameworks of adjacent water stop belts are contacted and fixedly connected, the extending parts of the water stop plates 100 are overlapped and hermetically connected, the overlapped parts are welded, and sealant is filled in the overlapped interlayers.
Example 2:
on the basis of the example 1, referring to the attached figure 7, in order to enhance the water seepage prevention effect, the post-cast strip of the invention is arranged as follows:
the steel bar frameworks are staggered, the steel bar frameworks connected with the bottom layer steel bar mesh 700 are close to the post-cast strip, the steel bar frameworks connected with the surface layer steel bar mesh 800 are far away from the post-cast strip, so that the end face of the cast-in-place member is in a step shape, the position of the post-cast strip close to the surface layer is wide, the position of the post-cast strip close to the bottom layer is narrow, even if the cast-in-place member and the post-cast strip form a cold joint, the path from the bottom layer to the outer layer of the cold joint is curved, and the cold joint is not directly communicated.
In order to further enhance the effect of water seepage prevention, the number of the water stop plates 100 is n, the number of the steel reinforcement frameworks is n +1, n is larger than or equal to 1, and the water stop plates 100 are arranged between the steel reinforcement frameworks at intervals.
In this embodiment, the number n of the water stop plates 100 is 2, and the number of the reinforcing cages is 3.
Referring to fig. 7, two water stop plates 100 are disposed between the first layer of steel reinforcement frame 200, the second layer of steel reinforcement frame 300, and the third layer of steel reinforcement frame 900 at intervals, wherein the first layer of steel reinforcement frame 200 is fixedly connected to the bottom layer of steel reinforcement mesh 700, and the third layer of steel reinforcement frame 900 is fixedly connected to the surface layer of steel reinforcement mesh 800. The positions of the post-cast strip are sequentially far away from the first layer of steel reinforcement framework 200, the second layer of steel reinforcement framework 300 and the third layer of steel reinforcement framework 900, and the whole body is in a step shape.
Through the arrangement, after the cast-in-place member is formed, the end face is in a step shape, the connecting seam between the post-cast strip and the cast-in-place member is a curved path from the bottom layer to the surface layer, but not a straight line directly from the bottom layer to the surface layer, so that the post-cast strip is more tightly connected with the cast-in-place member, even if a cold seam is formed, the cold seam can be stopped in a corresponding stage, and the cold seam is not easy to develop to an adjacent stage, so that the anti-seepage performance of the cast-in-; and compared with a straight path, the bent path increases the length of the water seepage path and the seepage difficulty, and has a better seepage-proofing effect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A manufacturing method of an integral water stopping system is characterized by comprising the following steps:
manufacturing a rectangular steel bar framework, bending steel bars at two ends of the steel bar framework to form round corners, arranging a steel wire mesh for plugging hollow parts on the steel bar framework, wrapping the whole steel bar framework by the steel wire mesh, and fixedly connecting the steel wire mesh with the steel bar framework;
manufacturing a water stop belt, respectively welding two reinforcing steel bar frameworks to two sides of a water stop plate, wherein the two reinforcing steel bar frameworks are staggered, oblique supports are arranged on two sides of each reinforcing steel bar framework, one end of each oblique support is connected with the corresponding reinforcing steel bar framework, the other end of each oblique support is connected with the water stop plate, and the length of the water stop plate is greater than or equal to that of the corresponding reinforcing steel bar framework;
arranging the two water stops oppositely, and fixedly connecting the steel bar frameworks of the two water stops by using a support rod;
installing a water stop, inserting the water stop between the bottom layer reinforcing mesh and the surface layer reinforcing mesh, and enabling the two reinforcing cages of the water stop to be respectively fixedly connected with the bottom layer reinforcing mesh and the surface layer reinforcing mesh, wherein the reinforcing cages connected with the bottom layer reinforcing mesh are close to the post-pouring belt, and the reinforcing cages connected with the surface layer reinforcing mesh are far away from the post-pouring belt.
2. The method for manufacturing an integral water stop system according to claim 1, wherein: and bending the two edges of the water stop plate parallel to the steel bar framework towards the direction of the bottom steel bar mesh, wherein the bending angle is smaller than 90 degrees.
3. The method for manufacturing an integral water stop system according to claim 1, wherein: the length of the water stop plate is greater than that of the steel reinforcement framework, and two ends of the water stop plate extend out of the steel reinforcement framework in the length direction; and (4) contacting and fixing the steel bar frameworks of the adjacent water stop belts to ensure that the extending parts of the water stop plates are overlapped and connected in a sealing manner.
4. An integral stagnant water system which characterized in that: is manufactured by the method of any one of claims 1 to 3.
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| CN201811028197.4A CN109024699B (en) | 2018-09-04 | 2018-09-04 | Integral water stop system and manufacturing method thereof |
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| CN201811028197.4A CN109024699B (en) | 2018-09-04 | 2018-09-04 | Integral water stop system and manufacturing method thereof |
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| CN111894151A (en) * | 2020-06-19 | 2020-11-06 | 中国华冶科工集团有限公司 | Construction method and device for seepage-proof wallboard construction joint |
| CN114232694A (en) * | 2021-12-22 | 2022-03-25 | 民航机场建设工程有限公司 | Disassembly-free plate-net structure for construction joints of building bottom plate and construction method |
| CN115288203A (en) * | 2022-07-07 | 2022-11-04 | 安徽省第二建筑工程有限公司 | Construction method of water-stop post-cast strip of butyl steel plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001200548A (en) * | 2000-01-18 | 2001-07-27 | Asahi Glass Co Ltd | Forward waterproof method for wall surface of underground structure |
| CN203440837U (en) * | 2013-07-25 | 2014-02-19 | 中国建筑土木建设有限公司 | Bottom plate construction joint concrete binding off net device |
| CN203755354U (en) * | 2014-03-21 | 2014-08-06 | 江苏省华建建设股份有限公司 | Basement floor post-cast strip |
| CN205444504U (en) * | 2016-02-29 | 2016-08-10 | 中国建筑第二工程局有限公司 | Building structure post-cast strip |
| CN108166531B (en) * | 2017-12-26 | 2020-03-17 | 中国建筑第七工程局有限公司 | Foundation post-cast strip template and construction method for casting post-cast strip |
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