CN110984235B - Construction method of post-cast strip water stop structure - Google Patents
Construction method of post-cast strip water stop structure Download PDFInfo
- Publication number
- CN110984235B CN110984235B CN201911029808.1A CN201911029808A CN110984235B CN 110984235 B CN110984235 B CN 110984235B CN 201911029808 A CN201911029808 A CN 201911029808A CN 110984235 B CN110984235 B CN 110984235B
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- Prior art keywords
- water stop
- post
- steel
- cast strip
- supporting
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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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- 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
- E02D31/04—Watertight packings for use under hydraulic pressure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
Abstract
The invention relates to a construction method of a post-cast strip water stop structure, wherein inverted triangular seams are formed among supporting steel bars, dense mesh steel wire meshes and water stop steel plates in the post-cast strip water stop structure obtained by concrete construction by utilizing the construction method, and the inverted triangular seams can increase the contact area of concrete at the joints of the post-cast strip so as to effectively solve the problem that the concrete constructed by subsequent concrete cannot effectively prevent and treat water leakage; and the inverted triangular seam also enables the rough area of the contact surface of the post-cast strip to be larger, so that the problem that the tooth-shaped occlusion of the post-cast strip and the concrete-built part is not tight is effectively solved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of a post-cast strip water stop structure.
Background
The post-cast strip is a temporary construction joint reserved at the corresponding position of a foundation slab, a wall and a beam according to the design or construction specification requirement in order to prevent a possibly generated harmful crack of a cast-in-place reinforced concrete structure due to nonuniform self shrinkage or nonuniform settlement in the building construction.
The problem of water leakage of the construction joint reserved on the concrete post-cast strip always needs to be rectified, so that many scientific researchers think of many different treatment modes after many researches, but cannot well treat and solve the problems.
Disclosure of Invention
Aiming at the problems, the construction method of the post-cast strip water stop structure is provided, and the post-cast strip water stop structure is good in anti-seepage effect and simple to operate.
The specific technical scheme is as follows:
a construction method of a post-cast strip water stop structure is characterized by comprising the following steps:
a. determining a position line of the post-cast strip on a construction site according to a design drawing;
b. fixing a water stop steel plate at the middle section of a joint of a post-cast strip by using a water stop plate bracket, and respectively arranging a first dense mesh steel wire mesh and a second dense mesh steel wire mesh above and below the water stop steel plate;
c. arranging a plurality of first supporting steel bars for supporting the first fine mesh steel wire mesh on one side of the first fine mesh steel wire mesh facing the water stop steel plate according to a specified interval, connecting the upper end and the lower end of each first supporting steel bar by using first transverse steel bars to form a first fine mesh steel bar grid, and welding the first transverse steel bars, which are positioned at the lower end relatively in the first fine mesh steel bar grid, on the water stop steel plate;
d. arranging a plurality of second supporting steel bars for supporting the second fine mesh steel wire mesh on one side, facing the water stop plate bracket, of the second fine mesh steel wire mesh according to a specified interval, connecting the upper end and the lower end of each second supporting steel bar by using second transverse steel bars to form a second fine mesh steel bar grid, and welding the second transverse steel bars, which are positioned at the upper end relatively, in the second fine mesh steel bar grid to the water stop steel plate;
e. connecting the first supporting steel bar to the water stop steel plate by using the first connecting steel bar, and connecting the second supporting steel bar to the water stop plate bracket by using the second connecting steel bar;
f. binding other components at the post-cast strip according to a design drawing;
g. and pouring concrete according to the design drawing and maintaining to form a main body structure, and pouring concrete at the joint of the post-cast strip in the later period of the engineering and maintaining to form the post-cast strip.
The above construction method is further characterized in that the upper ends of the first support bars 5 in the first fine mesh reinforcement grid and the upper ends of the second support bars 6 in the second fine mesh reinforcement grid are located on the same vertical plane.
The beneficial effect of above-mentioned scheme is:
1) in the invention, the triangular seam formed among the supporting steel bar, the dense mesh steel wire mesh and the water stop steel plate is used for increasing the concrete contact area at the joint of the post-cast strip, so as to effectively solve the problem that the concrete built by the subsequent concrete can not effectively prevent and control water leakage;
2) the rough area of the contact surface of the post-cast strip is larger by utilizing the triangular seam, so that the problem that the tooth-shaped occlusion of the post-cast strip and the concrete-built part is not tight is effectively solved;
3) the invention utilizes the dense mesh steel wire mesh of the oblique support to bear the impact of the concrete building part in advance, thus solving the problem of concrete leakage in the concrete building process;
4) the invention adopts a multidirectional supporting and fixing binding mode to fix the water-stopping steel plate so as to solve the problem that the water-stopping steel plate is easy to deviate in the concrete construction process in the conventional technology.
Drawings
FIG. 1 is a schematic structural diagram of a post-cast strip water stop structure provided in an embodiment of the present invention;
fig. 2 is a partially enlarged view of a corresponding portion of the letter a in fig. 1.
In the drawings: 1. a water stop plate bracket; 2. a water stop steel plate; 3. a first dense mesh steel wire mesh; 4. a second dense mesh steel wire mesh; 5. a first support bar; 6. a second support bar; 7. a first connecting bar; 8. a second connecting reinforcement; 9. a triangular seam; 10. a main body structure.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
FIG. 1 is a schematic structural diagram of a post-cast strip water stop structure provided in an embodiment of the present invention; fig. 2 is a partially enlarged view of a corresponding portion of the letter a in fig. 1. As shown in fig. 1 and 2, the construction method of the post-cast strip waterstop structure provided by the invention comprises the following steps:
a. determining a position line of the post-cast strip on a construction site according to a design drawing;
b. fixing a water stop steel plate 2 at the middle section of a joint of a post-cast strip by using a water stop plate bracket 1, and respectively arranging a first dense mesh steel wire mesh 3 and a second dense mesh steel wire mesh 4 above and below the water stop steel plate 2;
c. arranging a plurality of first supporting steel bars 5 for supporting the first fine mesh steel wire net 3 on one side of the first fine mesh steel wire net 3 facing the water stop steel plate 2 according to a specified interval, connecting the upper end and the lower end of each first supporting steel bar 5 by using first transverse steel bars to form a first fine mesh steel bar grid for supporting the first fine mesh steel wire net 3, and welding the first transverse steel bars which are positioned at the lower end relatively in the first fine mesh steel bar grid on the water stop steel plate 2;
d. arranging a plurality of second supporting steel bars 6 for supporting the second fine mesh steel wire net 4 on one side of the second fine mesh steel wire net 4 facing the water stop plate bracket 1 according to a specified interval, connecting the upper end and the lower end of each second supporting steel bar 6 by using second transverse steel bars to form a second fine mesh steel bar grid for supporting the second fine mesh steel wire net 4, and welding second transverse steel bars which are positioned at the upper end relatively in the second fine mesh steel bar grid to the water stop steel plate 2;
e. connecting the first supporting steel bar 5 to the water stop steel plate 2 by using a first connecting steel bar 7, and connecting the second supporting steel bar 6 to the water stop plate bracket 1 by using a second connecting steel bar 8;
f. binding other components at the post-cast strip according to a design drawing;
g. and pouring concrete according to the design drawing and maintaining to form the main body structure 10, and pouring concrete at the joint of the post-cast strip in the later period of the engineering and maintaining to form the post-cast strip.
In the invention, the upper ends of the first supporting steel bars 5 in the first fine mesh steel bar meshes and the upper ends of the second supporting steel bars 6 in the second fine mesh steel bar meshes are positioned on the same vertical plane.
According to the invention, the triangular seam 9 is formed among the supporting steel bars, the dense mesh steel wire mesh and/or the water stop steel plate in the post-cast strip water stop structure obtained by concrete construction by using the construction method, the triangular seam 9 can increase the contact area of concrete at the seam, so that the contact area of the occlusion part at the seam is increased, and further, the new concrete construction part and the old concrete construction part are occluded more tightly, so that the problem that the concrete of the subsequent concrete construction cannot effectively prevent and treat water leakage is effectively solved.
According to the post-cast strip water stop structure obtained by concrete construction by using the construction method, the impact of concrete of a part built by concrete firstly is borne by the obliquely supported dense mesh steel wire meshes, and the problem of concrete leakage in the concrete building process is solved.
The invention utilizes the post-cast strip water stop structure obtained by concrete construction by the construction method to fix the water stop steel plate by adopting a multidirectional supporting and spot welding fixing mode so as to solve the problem that the water stop steel plate is easy to deviate in the concrete construction process in the conventional technology.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (2)
1. A construction method of a post-cast strip water stop structure is characterized by comprising the following steps:
a. determining a position line of the post-cast strip on a construction site according to a design drawing;
b. fixing a water stop steel plate (2) at the middle section of a joint of a post-cast strip by using a water stop plate bracket (1), and respectively arranging a first dense mesh steel wire mesh (3) and a second dense mesh steel wire mesh (4) above and below the water stop steel plate (2);
c. arranging a plurality of first supporting steel bars (5) for supporting the first fine mesh steel wire net (3) on one side of the first fine mesh steel wire net (3) facing the water stop steel plate (2) according to a specified interval, connecting the upper end and the lower end of each first supporting steel bar (5) by using first transverse steel bars to form a first fine mesh steel bar grid, and welding the first transverse steel bars, which are positioned at the lower end in the first fine mesh steel bar grid relatively, on the water stop steel plate (2);
d. arranging a plurality of second supporting steel bars (6) for supporting the second fine mesh steel wire net (4) on one side of the second fine mesh steel wire net (4) facing the water stop plate bracket (1) according to a specified interval, connecting the upper end and the lower end of each second supporting steel bar (6) by using second transverse steel bars to form a second fine mesh steel bar grid, and welding the second transverse steel bars, which are positioned at the upper end relatively in the second fine mesh steel bar grid, on the water stop steel plate (2);
e. connecting a first supporting steel bar (5) to the water stop steel plate (2) by using a first connecting steel bar (7), and connecting a second supporting steel bar (6) to the water stop plate bracket (1) by using a second connecting steel bar (8);
f. binding other components at the post-cast strip according to a design drawing;
g. and pouring concrete according to the design drawing and maintaining to form a main body structure, and pouring concrete at the joint of the post-cast strip in the later period of the engineering and maintaining to form the post-cast strip.
2. Construction method according to claim 1, wherein the upper ends of the first support bars (5) in the first lattice of fine steel bars are located on the same vertical plane as the upper ends of the second support bars (6) in the second lattice of fine steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911029808.1A CN110984235B (en) | 2019-10-28 | 2019-10-28 | Construction method of post-cast strip water stop structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911029808.1A CN110984235B (en) | 2019-10-28 | 2019-10-28 | Construction method of post-cast strip water stop structure |
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| Publication Number | Publication Date |
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| CN110984235A CN110984235A (en) | 2020-04-10 |
| CN110984235B true CN110984235B (en) | 2021-08-13 |
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| CN201911029808.1A Active CN110984235B (en) | 2019-10-28 | 2019-10-28 | Construction method of post-cast strip water stop structure |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06341227A (en) * | 1993-06-01 | 1994-12-13 | Shimizu Corp | Water stop construction method for placing joint part of concrete structure |
| CN102720216A (en) * | 2012-07-11 | 2012-10-10 | 南通市达欣工程股份有限公司 | Foundation post-pouring belt template constructing method |
| CN203440837U (en) * | 2013-07-25 | 2014-02-19 | 中国建筑土木建设有限公司 | Concrete closing net device for construction joint of base plate |
| CN105275097A (en) * | 2014-07-03 | 2016-01-27 | 中铁城建集团第二工程有限公司 | A post-cast strip water-stop steel plate and demolition-free template net installing method |
| CN205591259U (en) * | 2016-04-20 | 2016-09-21 | 山东三箭资产投资管理有限公司 | Steel form of basement shear force wall post -cast strip |
| CN206681042U (en) * | 2017-04-17 | 2017-11-28 | 浙江嘉宇工程管理有限公司 | Post-cast strip side form structure |
| CN207512697U (en) * | 2017-11-24 | 2018-06-19 | 中铁七局集团第五工程有限公司 | Post-cast strip antipriming |
| CN208136971U (en) * | 2018-05-02 | 2018-11-23 | 内蒙古机电职业技术学院 | Post-cast strip waterproof construction and basement |
| CN208202346U (en) * | 2017-08-23 | 2018-12-07 | 上海宝冶集团有限公司 | A kind of post-cast strip steel bar protective layer control device |
-
2019
- 2019-10-28 CN CN201911029808.1A patent/CN110984235B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06341227A (en) * | 1993-06-01 | 1994-12-13 | Shimizu Corp | Water stop construction method for placing joint part of concrete structure |
| CN102720216A (en) * | 2012-07-11 | 2012-10-10 | 南通市达欣工程股份有限公司 | Foundation post-pouring belt template constructing method |
| CN203440837U (en) * | 2013-07-25 | 2014-02-19 | 中国建筑土木建设有限公司 | Concrete closing net device for construction joint of base plate |
| CN105275097A (en) * | 2014-07-03 | 2016-01-27 | 中铁城建集团第二工程有限公司 | A post-cast strip water-stop steel plate and demolition-free template net installing method |
| CN205591259U (en) * | 2016-04-20 | 2016-09-21 | 山东三箭资产投资管理有限公司 | Steel form of basement shear force wall post -cast strip |
| CN206681042U (en) * | 2017-04-17 | 2017-11-28 | 浙江嘉宇工程管理有限公司 | Post-cast strip side form structure |
| CN208202346U (en) * | 2017-08-23 | 2018-12-07 | 上海宝冶集团有限公司 | A kind of post-cast strip steel bar protective layer control device |
| CN207512697U (en) * | 2017-11-24 | 2018-06-19 | 中铁七局集团第五工程有限公司 | Post-cast strip antipriming |
| CN208136971U (en) * | 2018-05-02 | 2018-11-23 | 内蒙古机电职业技术学院 | Post-cast strip waterproof construction and basement |
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| CN110984235A (en) | 2020-04-10 |
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