CN114215196B - Waterproof structure of assembled steel structure building column foot and construction method - Google Patents
Waterproof structure of assembled steel structure building column foot and construction method Download PDFInfo
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- CN114215196B CN114215196B CN202111610713.6A CN202111610713A CN114215196B CN 114215196 B CN114215196 B CN 114215196B CN 202111610713 A CN202111610713 A CN 202111610713A CN 114215196 B CN114215196 B CN 114215196B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000004567 concrete Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000010410 layer Substances 0.000 claims description 46
- 239000011083 cement mortar Substances 0.000 claims description 19
- 239000011247 coating layer Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000007788 roughening Methods 0.000 claims 1
- 239000002344 surface layer Substances 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 10
- 239000011178 precast concrete Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 238000005253 cladding Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- 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
- E04B1/665—Sheets or foils impervious to water and water vapor
-
- 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
-
- 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
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a waterproof construction and a construction method of an assembled steel structure building column foot, which comprises a PEC column, a wall body, a water-stopping steel plate and a cast-in-place concrete floor slab, wherein the water-stopping steel plate comprises a first vertical plate, a second vertical plate and a horizontal plate, the first vertical plate and the second vertical plate are vertical to the horizontal plate and are connected with the horizontal plate, the horizontal plate is paved along the column foot edge of the PEC column, and the horizontal plate is embedded into the floor slab; the first vertical plate is perpendicular to and connected with a first flange of the PEC column, the second vertical plate is parallel to and connected with a second flange side of the PEC column, and concrete is poured along column feet of the PEC column to form a waterproof platform; the first vertical board and the second vertical board are respectively poured with concrete to form a waterproof flanging higher than the waterproof platform, the first vertical board and the second vertical board are respectively embedded into the waterproof flanging, one end of the waterproof flanging is connected with the PEC column, the bottom of the wall body is connected with the top of the waterproof flanging, and the problem of cracking and water seepage at the joint of the column base is avoided.
Description
Technical Field
The invention relates to the field of assembled buildings, in particular to a waterproof structure of an assembled steel structure building column base and a construction method.
Background
With the great promotion of government in China on fabricated buildings, the fabricated building structure system is more and more widely applied. The assembled building is formed by connecting various prefabricated components, and particularly when the room where the column base is connected is a water room such as a bathroom or the like, the joint of the column base and the floor slab, the wall body and the like is connected with different components or different materials, so that the problem of interlayer water seepage is easily caused by cracks. Especially, in multi-storey and medium-high-rise buildings, the problem of interlayer water resistance of the buildings needs to be paid attention, and not only is the construction quality acceptance of building units related, but also harmony among householder neighbors is affected. In the assembled steel structure building, the water seepage treatment of the upper floor and the lower floor of the column foot needs to be considered: the interface of different materials is cracked to cause water seepage; the phenomenon that the precast concrete and the cast-in-place concrete form cold joints is avoided; these may cause interlayer water seepage problems.
Disclosure of Invention
The invention firstly discloses a waterproof structure of an assembled steel structure building column base, which solves the problems of crack generation at the contact position of a PEC column and different materials of a concrete floor slab and a wall body, interlayer water seepage and obvious indoor crack generation.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an assembled steel construction building column foot waterproof construction, includes PEC post, wall body, stagnant water steel sheet and cast in situ concrete floor, and stagnant water steel sheet includes first vertical board, second vertical board and horizontal plate, and first vertical board and second vertical board are all perpendicular to horizontal plate and link to each other with the horizontal plate, and the horizontal plate is laid along the column foot edge of PEC post, and the horizontal plate imbeds inside the floor; the first vertical plate is perpendicular to and connected with a first flange of the PEC column, the second vertical plate is parallel to and connected with a second flange side of the PEC column, and concrete is poured along column feet of the PEC column to form a waterproof platform; the first vertical plate and the second vertical plate are respectively poured with concrete to form a waterproof flanging higher than the waterproof table, the first vertical plate and the second vertical plate are respectively embedded into the waterproof flanging, one end of the waterproof flanging is connected with the PEC column, and the bottom of the wall body is connected with the top of the waterproof flanging.
Further, a waterproof layer is coated from the concrete coating layer of the PEC column to the surface of the floor, and a cement mortar bonding layer is coated on the outer surface of the waterproof layer.
Further, the surface of the cement mortar bonding layer is paved with a floor tile or stone decorative layer.
Further, the outer surface of the second flange is coated with a fireproof layer.
The invention also discloses a construction method of the waterproof construction of the fabricated steel structure building column foot, which comprises the following specific steps:
step (1): the PEC column and PEC beam are assembled and connected;
step (2): laying a water-stop steel plate on a structural layer of the floor slab around the column feet of the PEC column, and welding vertical plates of the water-stop steel plate with flanges on two sides of the PEC column;
step (3): pouring concrete on the structural layer of the floor slab to form a concrete floor slab, and embedding the horizontal plate of the water stop steel plate into the floor slab;
step (4): pouring concrete along the joint of the column foot of the PEC column and the floor slab to form a waterproof platform;
step (5): and concrete is poured along the plane directions of the two vertical plates of the water-stop steel plate respectively to form a waterproof flanging, so that the vertical plates of the water-stop steel plate are embedded into the waterproof flanging to be hidden, and one end of the waterproof flanging is connected with the PEC column.
Further, the waterproof flanging is higher than the waterproof table.
Further, after the step (5) is executed, leveling the floor surface by cement mortar, then coating waterproof paint on the cement mortar leveling layer from the concrete coating layer of the PEC column to the top of the floor to form a waterproof layer, paving a hard cement mortar bonding layer on the surface of the waterproof layer, and finally paving decorative floor tiles or stones on the surface of the hard cement mortar bonding layer.
Further, prior to casting to form the waterproof station, the concrete cladding surface of the PEC column is roughened.
The column foot waterproof structure and the construction method solve the problem of interface cracking caused by material difference between the steel member and the concrete, and effectively avoid water seepage at the cracking part; the phenomenon that the precast concrete and the cast-in-place concrete form cold joints is avoided, so that the problem of forming gaps at the top of the floor slab is solved; through carrying out multiple waterproof protection to the toe department that has the water room in the building, solved the problem of toe department infiltration to the lower floor, improved the comfort level of living of assembled steel construction building.
Drawings
FIG. 1 is a schematic three-dimensional structure of a waterproof structure of a column foot according to an embodiment of the present invention;
fig. 2 is a schematic view of the internal structure of fig. 1 in three dimensions.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment discloses a waterproof construction of an assembled steel structure building column foot and a construction method of the waterproof construction, wherein the waterproof construction is shown in fig. 1 and 2 and mainly comprises a PEC column 1, a water stop steel plate 4 and a cast-in-place concrete floor 5. The PEC column 1 is internally provided with H-shaped steel, two sides of the H-shaped steel are provided with a first flange 11 and a second flange 12, a web 13 is arranged between the first flange 11 and the second flange 12, and cavities at two sides of the web 13 are filled with concrete to form a concrete coating layer 14. Typically, the PEC column 1 is a prefabricated component, and the concrete cladding 14 is also prefabricated in the factory, rather than cast in place at the job site. The PEC column 1 is critical for waterproofing at the column foot when it is in a corner of an indoor space in a building construction, particularly when it is used as a support member for a watershed (e.g. a toilet or shower). In general, the PEC column 1 needs to be connected with a wall body and a floor slab, and as the connection surface of the PEC column 1 can involve a steel interface and a precast concrete interface, when the flange of the steel structure of the PEC column 1 is connected with the wall body, cracks are easily generated at the interface of the steel material and the concrete material due to material difference, and if special waterproof protection is not performed on the connection position of the wall body and the PEC column 1, water seepage is easily generated at the interface. In addition, the floor slab 5 is usually a cast-in-place concrete floor slab, and the concrete coating layer 14 of the PEC column 1 is a precast concrete layer, so that when the floor slab 5 is cast in place in construction, cold seams are easily formed at the connection between the precast concrete surface and the cast-in-place concrete surface, and water seepage problems are easily caused.
In order to avoid the problem, in this embodiment, the water-stop steel plate 4 is laid along the column foot of the PEC column 1, and the water-stop steel plate 4 is formed by bending steel plates, and can be divided into a vertical plate and a horizontal plate, when the PEC column 1 is located at a corner of a water room, the PEC column 1 needs to be connected with two walls in the vertical direction respectively, so that the vertical plate on the water-stop steel plate 4 can be divided into a first vertical plate and a second vertical plate, and the two vertical plates are not connected with each other and are perpendicular to each other and are respectively connected with the horizontal plate. The horizontal plates are laid along the column foot edges of the PEC columns 1, the horizontal plates are laid on the structural layers of the floor slabs, and when concrete is to be poured, the horizontal plates are embedded into the concrete floor slabs 5. The first vertical plate is arranged perpendicular to the first flange 11 and is centered, one side edge of the first vertical plate is welded on the first flange 11, and the horizontal plate edge of the lower part of the first vertical plate is welded with the first flange 11. The second vertical plate is parallel to and flush with the second flange 12, and one side of the second vertical plate is welded to the side of the second flange 12. The water-stop steel plate 4 does not need to cover the entire floor surface of the room, and may be provided around only the vicinity of the column foot of the PEC column 1.
Due to the arrangement of the water stop steel plate 4, the column foot positions of the flange faces of the PEC column 1 are all interfaces made of steel structure materials, so that the situation of cracking caused by different materials can not occur. In order to hide the vertical board of stagnant water steel sheet 4, can also follow the two length directions of first vertical board and the vertical board of second and cast in situ concrete respectively and form waterproof turn-ups 2, make first vertical board and the vertical board of second be wrapped in by concrete waterproof turn-ups 2, waterproof turn-ups 2's tip links to each other with PEC post 1, waterproof turn-ups 2's high suggestion is 200mm, is higher than floor 5's surface course, can play the effect of retaining wall. When the wall body is connected with the PEC column 1, the wall body can be as wide as the waterproof flange 2, and the bottom of the wall body is fixedly connected with the top surface of the waterproof flange 2.
The water stop steel plate 4 is provided with the vertical plate, and is bent to form water stop protection, so that water seepage caused by gaps generated at the bent positions is avoided, but the interface between the steel structure and the concrete material still exists at the column foot connection position of the concrete coating layer 14 surrounding the PEC column 1, and the problem of connection of precast concrete and cast-in-place concrete also exists at the junction, so that water stop protection treatment is also needed at the junction. In this embodiment, before the waterproof turnup 2 is formed, concrete may be poured along the column foot of the PEC column 1 to form the waterproof table 6, the height of the waterproof table 6 is lower than the height of the waterproof turnup 2, and may be set to be 50mm high, so that the waterproof table 6 plays a certain role in blocking water flow.
In order to further increase the waterproof effect and the fireproof effect of the column foot of the PEC column 1, a fireproof layer 3 can be coated on the outer surface of the second flange 12, after the waterproof table 6 is formed, a waterproof layer 7 is formed by coating waterproof paint on the surface of the floor 5 along the concrete coating layer 14 of the PEC column 1, a hard cement mortar bonding layer 8 is coated on the outer surface of the waterproof layer 7, the hard cement mortar bonding layer 8 extends to the floor surface, and finally a waterproof and anti-slip floor tile or stone decorative layer 9 is paved on the outer surface of the hard cement mortar bonding layer 8.
The construction method of the column base waterproof structure comprises the following steps:
step (1): firstly, assembling and connecting the PEC column 1 and the PEC beam;
step (2): laying a water-stop steel plate 4 on a structural layer of a floor slab 5 around the column feet of the PEC column 1, and respectively welding two vertical plates of the water-stop steel plate 4 with flanges on two sides of the PEC column 1;
step (3): pouring concrete on the structural layer of the floor slab 5 to form a concrete floor slab 5, and embedding the horizontal plate of the water stop steel plate 4 into the floor slab 5;
step (4): pouring concrete along the joint of the column feet of the PEC column 1 and the floor slab 5 to form a waterproof table 6;
step (5): respectively pouring concrete along the plane directions of the two vertical plates of the water-stop steel plate 4 to form a waterproof flanging 2, embedding the vertical plates of the water-stop steel plate 4 into the waterproof flanging 2 to be hidden, connecting one end of the waterproof flanging 2 with the PEC column 1, and enabling the height of the waterproof flanging 2 to be higher than that of the waterproof platform 6;
step (6): leveling the surface of the floor slab 5 by using cement mortar, then coating waterproof paint along the cement mortar leveling layer from the surface of the concrete coating layer 14 of the PEC column 1 to the top of the floor slab 5 to form a waterproof layer 7, paving a hard cement mortar bonding layer 8 on the surface of the waterproof layer 7, and finally paving decorative floor tiles or stones 9 on the surface of the hard cement mortar bonding layer 8.
To increase the fire protection effect of the PEC column 1, a fire protection layer 3 may also be applied to the exposed flange surface of the PEC column 1 (e.g., a fire protection layer 3 may be provided on the outer surface of the second flange 12). In order to enable the cast-in-place concrete structure of the waterproof platform 6 and the surface of the precast concrete cover layer 14 on the PEC column 1 not to generate cold joints, the surface of the concrete cover layer 14 of the PEC column 1 is roughened to roughen the surface before the waterproof platform 6 is cast.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a waterproof structure of assembled steel construction building column base which characterized in that: the water-stopping steel plate comprises a first vertical plate, a second vertical plate and a horizontal plate, wherein the first vertical plate and the second vertical plate are perpendicular to the horizontal plate and are connected with the horizontal plate, the horizontal plate is paved along the column foot edge of the PEC column, and the horizontal plate is embedded into the floor; the first vertical plate is perpendicular to and connected with a first flange of the PEC column, the second vertical plate is parallel to and connected with a second flange side of the PEC column, concrete is poured along a column foot of the PEC column to form a waterproof platform, and the waterproof platform is higher than a surface layer of a floor slab; the first vertical plate and the second vertical plate are respectively poured with concrete to form a waterproof flanging higher than the waterproof table, the first vertical plate and the second vertical plate are respectively embedded into the waterproof flanging, one end of the waterproof flanging is connected with the PEC column, and the bottom of the wall body is connected with the top of the waterproof flanging; and coating a waterproof layer along the concrete coating layer surface of the PEC column to the floor surface, coating a cement mortar bonding layer on the outer surface of the waterproof layer, and paving a floor tile or stone decorative layer on the surface of the cement mortar bonding layer.
2. The waterproof construction of a fabricated steel construction building column foot according to claim 1, wherein: and the outer surface of the second flange is coated with a fireproof layer.
3. A construction method of the waterproof construction of the column base of the fabricated steel structure building according to any one of claims 1 to 2, comprising the following construction steps:
step (1): the PEC column and PEC beam are assembled and connected;
step (2): laying a water-stop steel plate on a structural layer of the floor slab around the column feet of the PEC column, and welding vertical plates of the water-stop steel plate with flanges on two sides of the PEC column;
step (3): pouring concrete on the structural layer of the floor slab to form a concrete floor slab, and embedding the horizontal plate of the water stop steel plate into the floor slab;
step (4): roughening the surface of a concrete coating layer of the PEC column;
step (5): after the step (4) is completed, casting concrete along the joint of the column feet of the PEC column and the floor slab to form a waterproof platform;
step (6): respectively pouring concrete along the plane directions of the two vertical plates of the water-stop steel plate to form a waterproof flanging, wherein the height of the waterproof flanging is higher than that of the waterproof platform, so that the vertical plates of the water-stop steel plate are embedded into the waterproof flanging to be hidden, and one end of the waterproof flanging is connected with the PEC column;
step (7): leveling the floor surface by using cement mortar, then coating waterproof paint from the concrete coating layer of the PEC column to the cement mortar leveling layer at the top of the floor to form a waterproof layer, paving a hard cement mortar bonding layer on the surface of the waterproof layer, and finally paving decorative floor tiles or stones on the surface of the hard cement mortar bonding layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111610713.6A CN114215196B (en) | 2021-12-27 | 2021-12-27 | Waterproof structure of assembled steel structure building column foot and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111610713.6A CN114215196B (en) | 2021-12-27 | 2021-12-27 | Waterproof structure of assembled steel structure building column foot and construction method |
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| CN114215196A CN114215196A (en) | 2022-03-22 |
| CN114215196B true CN114215196B (en) | 2023-10-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3646955B2 (en) * | 1997-01-30 | 2005-05-11 | 積水ハウス株式会社 | Waterproof structure of column base |
| CN207846692U (en) * | 2017-10-26 | 2018-09-11 | 中天建设集团浙江钢构有限公司 | A kind of water proof structure of floor and steel pipe column intersection |
| CN211172444U (en) * | 2019-07-22 | 2020-08-04 | 天津申茂企业管理有限公司杭州分公司 | Waterproof structure for joint of steel structure and wading room concrete |
| CN212562578U (en) * | 2020-06-18 | 2021-02-19 | 北京城建七建设工程有限公司 | Prefabricated fender platform connection structure |
| CN112227601B (en) * | 2020-07-31 | 2022-07-15 | 中国一冶集团有限公司 | Waterproof construction method for bottom plate at lattice column |
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| GR01 | Patent grant |