CN114941382A - Concrete structure and steel stair waterproof node and construction method thereof - Google Patents
Concrete structure and steel stair waterproof node and construction method thereof Download PDFInfo
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- CN114941382A CN114941382A CN202210612167.8A CN202210612167A CN114941382A CN 114941382 A CN114941382 A CN 114941382A CN 202210612167 A CN202210612167 A CN 202210612167A CN 114941382 A CN114941382 A CN 114941382A
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- waterproof
- concrete structure
- steel stair
- steel
- stair
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 109
- 239000010959 steel Substances 0.000 title claims abstract description 109
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 27
- 230000002787 reinforcement Effects 0.000 claims description 15
- 239000004570 mortar (masonry) Substances 0.000 claims description 13
- 239000002344 surface layer Substances 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Classifications
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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
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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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention relates to a concrete structure and steel stair waterproof node and a construction method thereof, wherein the node comprises the following components: the reinforcing piece is embedded in the concrete structure and corresponds to the arrangement position of the steel stair; the first waterproof plate is connected with the reinforcing piece and can be bent, a template of the concrete structure is attached to the first waterproof plate when the concrete structure is poured, and the first waterproof plate is bent to be attached to the surface of the steel stair after the concrete structure is formed; and the second waterproof board is arranged on the top surface of the steel stair and connected with the first waterproof board, and the second waterproof board is in a non-straight shape. The first waterproof board is connected with the reinforcing piece and partially embedded and fixed in the concrete structure, the first waterproof board is arranged at the joint of the concrete structure and the steel stair in a blocking mode, a good waterproof effect can be achieved, the second waterproof board is connected with the first waterproof board, the second waterproof board is not straight, a seepage path is increased, the waterproof effect is further improved, and the concrete stair has good durability.
Description
Technical Field
The invention relates to the technical field of steel stair water prevention, in particular to a concrete structure and steel stair water prevention node and a construction method thereof.
Background
At present, because the steel stair and the concrete wall body are made of two different materials and cannot be tightly attached, when the steel stair and the concrete wall body are adopted outdoors, water resistance cannot be well treated. The scheme that adopts at present has the increase ceiling to place the rainwater and get into stair, carry out the shutoff with waterproofing membrane or mortar in the gap department of steel stair and concrete wall in addition, nevertheless because the durability is poor, lead to waterproof can not satisfy the operation requirement, adopt the ceiling not only to increase the cost and still can influence the architectural effect, make architectural effect can not satisfy architect's requirement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a concrete structure and steel stair waterproof node and a construction method thereof, and solves the problems that the existing steel stair and concrete structure are poor in durability due to the fact that waterproof coiled materials or mortar are adopted for sealing gaps, and the cost is increased and the building effect is influenced due to the fact that a ceiling is additionally arranged on an outdoor steel stair.
The technical scheme for realizing the purpose is as follows:
the invention provides a concrete structure and steel stair waterproof node, which comprises:
the reinforcing piece is embedded in the concrete structure and corresponds to the arrangement position of the steel stair;
the first waterproof plate is connected with the reinforcing piece and can be bent, a template of the concrete structure is attached to the first waterproof plate when the concrete structure is poured, and the first waterproof plate is bent to be attached to the surface of the steel stair after the concrete structure is formed; and
and the second waterproof board is arranged on the top surface of the steel stair and connected with the first waterproof board, and the second waterproof board is in a non-straight shape.
According to the waterproof node, the reinforcing member is embedded in the concrete structure, the structural strength of the concrete structure corresponding to the position where the steel stair is connected is improved by the reinforcing member, the first waterproof board and the second waterproof board are arranged at the position where the steel stair is connected with the concrete structure, the first waterproof board is connected with the reinforcing member and is partially embedded and fixed in the concrete structure, the first waterproof board is arranged at the joint of the concrete structure and the steel stair in a blocking mode, a good waterproof effect can be achieved, the second waterproof board is connected with the first waterproof board, the second waterproof board is in a non-straight state, a seepage path is increased, the waterproof effect is further improved, and the waterproof node has better durability compared with the existing waterproof coiled material and mortar plugging.
The concrete structure and steel stair waterproof node is further improved in that the second waterproof plate comprises an inverted U-shaped section buckled on the first waterproof plate, a horizontal section arranged on the surface of the steel stair and connected with the inverted U-shaped section, and a vertical section connected with the horizontal section, and a wing plate of the inverted U-shaped section is attached to the concrete structure.
The concrete structure and the steel stair waterproof node is further improved in that a part of the first waterproof plate is attached to and fixedly connected with the reinforcing piece.
The concrete structure and steel stair waterproof node is further improved in that a waterproof mortar structure is arranged at the joint of the steel stair and the concrete structure.
The concrete structure and steel stair waterproof node is further improved by further comprising a surface layer arranged on the top surface of the steel stair, and the first waterproof plate and the second waterproof plate are fixedly embedded in the surface layer.
The invention also provides a construction method of the concrete structure and steel stair waterproof node, which comprises the following steps:
when a concrete structure is constructed, a reinforcement is embedded in the constructed concrete structure, and the arrangement position of the reinforcement corresponds to the arrangement position of the steel stair to be constructed;
providing a first waterproof plate, connecting the first waterproof plate with the reinforcing piece, and bending the first waterproof plate to be attached to a concrete structure template when a concrete structure is constructed;
after the concrete structure is constructed, installing a steel stair, and bending a first waterproof plate to be attached to the surface of the steel stair;
and providing a second waterproof plate, connecting the second waterproof plate with the first waterproof plate and placing the second waterproof plate on the top surface of the steel stair, wherein the second waterproof plate is non-flat.
The construction method is further improved in that the provided second waterproof board comprises an inverted U-shaped section, a horizontal section connected with the inverted U-shaped section and a vertical section connected with the horizontal section;
buckling the inverted U-shaped section on a first waterproof plate, and enabling a wing plate of the inverted U-shaped section to be attached to the concrete structure;
and placing the horizontal section on the surface of the steel stair.
In a further improvement of the construction method of the present invention, when the first waterproof sheet is provided, the first waterproof sheet is attached to the reinforcing member and is fixedly connected to the reinforcing member.
The construction method is further improved in that when the steel stair is installed, the steel stair and the concrete structure are connected through a waterproof mortar structure.
The construction method is further improved in that a surface layer is constructed on the top surface of the steel stair, and the first waterproof plate and the second waterproof plate are fixedly embedded in the constructed surface layer.
Drawings
Fig. 1 is a top view of the connection of a steel stair and a concrete structure in the waterproof node of the concrete structure and the steel stair.
Fig. 2 is a schematic structural view of the connection between the reinforcing member and the first waterproof plate in the waterproof node of the concrete structure and the steel stair of the invention.
FIG. 3 is a schematic structural view of the connection between the steel stairway and the concrete structure in the waterproof node of the concrete structure and the steel stairway of the invention.
Fig. 4 is a schematic structural view of a second waterproof board arranged in the waterproof node of the concrete structure and the steel stair.
FIG. 5 is a schematic structural view of a surface layer arranged in the waterproof node of the concrete structure and the steel stair.
Fig. 6 is a schematic cross-sectional view of a second flashing in the waterproof node of a concrete structure and a steel stair according to the invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a concrete structure and steel stair waterproof node and a construction method thereof, which are used for solving the waterproof problem at the joint of a steel stair and a concrete structure, wherein a waterproof plate is arranged between the side edge of the steel stair and the concrete structure, and is bent, so that the waterproof function is improved, the seepage path is increased, and a good waterproof effect is achieved. When the concrete structure is constructed, the reinforcing part is embedded, the reinforcing part is used for connecting the first waterproof board, the first waterproof board is partially buried in the concrete structure, the first waterproof board is arranged at the joint of the steel stair and the concrete structure in a blocking mode to play a waterproof role, the second waterproof board is arranged on the first waterproof board to complete a water storage test, and a construction surface decorative material is guaranteed to be watertight, so that the construction of waterproof nodes is completed. The concrete structure and steel stair waterproof node and the construction method thereof of the invention are explained below with reference to the accompanying drawings.
Referring to fig. 1, a top view of the connection of the steel stairway and the concrete structure in the waterproof node of the concrete structure and the steel stairway of the invention is shown. Referring to fig. 2, there is shown a schematic structural view of the connection between the reinforcing member and the first waterproof plate in the waterproof node of the concrete structure and the steel stair according to the present invention. The concrete structure and the steel stair waterproof node of the invention are explained below with reference to fig. 1 and 2.
As shown in fig. 1 and 2, the waterproof node of the concrete structure and the steel stairway of the present invention comprises a reinforcement 21, a first waterproof board 22 and a second waterproof board, wherein the reinforcement 21 is embedded in the concrete structure 12, the embedded position of the reinforcement 21 corresponds to the installation position of the steel stairway 11, the side edge of the steel stairway 11 is obliquely attached to the surface of the concrete structure 12, preferably, the concrete structure 12 is a concrete wall, and the reinforcement 21 is also obliquely embedded in the concrete structure 12; the first waterproof board 22 is connected with the reinforcing part 21, the first waterproof board 22 can be bent, the first waterproof board 22 is attached to a formwork of the concrete structure when the concrete structure 12 is poured, and the first waterproof board 22 is bent to be attached to the surface of the steel stair 11 after the concrete structure 12 is formed; the two sides of the steel staircase 11 are provided with ladder beams 111, the ladder beams 111 are provided with stair boards, the stair boards are step-shaped, and a platform 13 is arranged between the upper stair board and the lower stair board. The ladder beam 111 is disposed in an inclined manner, and the bent first waterproof board 22 is attached to the surface of the ladder beam. Referring to fig. 4, a second waterproof board 23 is disposed on the top surface of the steel stair 11 and connected to the first waterproof board 22, and the second waterproof board 23 is non-flat.
The first waterproof board 22 is connected with the reinforcing part 21 and also connected with the steel stair 11, so that the first waterproof board 22 is arranged at the joint of the steel stair and a concrete structure in a blocking mode to play a waterproof role, and the second waterproof board 23 is further arranged to be connected with the first waterproof board 22 and is not straight, so that a seepage path is increased, and a good waterproof effect is achieved.
In an embodiment of the present invention, as shown in fig. 4 and 6, the second waterproof board 23 includes an inverted U-shaped section 231 fastened to the first waterproof board 22, a horizontal section 232 disposed on the surface of the steel stair 11 and connected to the inverted U-shaped section 231, and a vertical section 233 connected to the horizontal section 232, wherein a wing plate of the inverted U-shaped section 231 is closely attached to the concrete structure 12. The horizontal section 232 is attached to the surface of the steel stair 11, and preferably, the horizontal section 232 and the vertical section 233 are both disposed on the surface of the stair beam of the steel stair.
Preferably, the second waterproof board 23 is welded and fixed with the first waterproof board 22.
The second waterproof board 23 has a structure capable of increasing a seepage path, thereby improving a waterproof effect.
In one embodiment of the present invention, as shown in fig. 2 and 3, the first waterproof sheet 22 is partially attached and fixed to the reinforcing member 21.
Preferably, the portion of the first waterproof sheet 22 attached to the reinforcement 21 is embedded in the concrete structure 12.
The reinforcement 21 is H-shaped steel, and the first waterproof sheet 22 is a galvanized steel sheet. The first waterproof boards 22 are fixedly attached to the upper and lower hospitals of the I-shaped steel, the first waterproof boards 22 are bent firstly to be attached to the formwork of the concrete structure, the first waterproof boards 22 are flattened after the concrete structure 12 is constructed, and when the steel stairway is connected, the first waterproof boards 22 are arranged on the upper and lower surfaces of the steel stairway, namely the first waterproof boards 22 are attached to the upper and lower surfaces of the ladder beam and fixedly connected with the ladder beam. Therefore, the first waterproof boards 22 are arranged at the upper side and the lower side of the joint of the steel stair 11 and the concrete structure 12, and play a role in preventing water.
In one embodiment of the present invention, as shown in fig. 3 and 4, a waterproof mortar structure 24 is provided at the joint of the steel stair 11 and the concrete structure 12, the joint between the steel stair and the concrete structure 12 is sealed by the waterproof mortar structure, and the first waterproof boards 22 are provided at the upper and lower sides of the waterproof mortar structure 24 to form a waterproof structure together with the waterproof mortar structure 24, so as to provide a waterproof function.
In an embodiment of the present invention, as shown in fig. 5, the stair comprises a surface layer 25 disposed on the top surface of the steel stair 11, wherein the surface layer 25 is embedded with the first waterproof sheet 22 and the second waterproof sheet 23. The second waterproof sheet 23 is preferably a galvanized steel sheet.
The construction process of the waterproof joint of the present invention will be explained.
Carry out concrete wall's construction earlier, in the work progress, pre-buried reinforcement and the first waterproof board with the angle along the side of steel stair, after concrete wall construction, with the partial exhibition flat that exposes of first waterproof board, install the steel stair after that, after the steel stair is installed, at the ladder roof beam top surface welding second waterproof board of steel stair lateral part, and with second waterproof board and first waterproof board welded connection, this first waterproof board is also pasted the part and is pasted top surface and the bottom surface of establishing at the ladder roof beam, will be located the first waterproof board and the ladder roof beam welding of ladder roof beam bottom surface, fill waterproof mortar between steel stair and the concrete wall, carry out the retaining test after the second waterproof board is accomplished in the welding, guarantee to leak after not permeating.
The waterproof node can reduce the construction cost, achieve good waterproof effect and has good durability.
The invention also provides a construction method of the concrete structure and the steel stair waterproof node, and the construction method is explained below.
The construction method comprises the following steps:
when a concrete structure is constructed, a reinforcement is embedded in the constructed concrete structure, and the arrangement position of the reinforcement corresponds to the arrangement position of a steel stair to be constructed;
providing a first waterproof board, connecting the first waterproof board with a reinforcing piece, and bending the first waterproof board to be attached to a concrete structure template when a concrete structure is constructed;
after the concrete structure is constructed, installing the steel stair, and bending the first waterproof plate to be attached to the surface of the steel stair;
and providing a second waterproof plate, connecting the second waterproof plate with the first waterproof plate, and placing the second waterproof plate on the top surface of the steel stair, wherein the second waterproof plate is non-flat.
In one embodiment of the present invention, a second flashing is provided comprising an inverted U-shaped section, a horizontal section connected to the inverted U-shaped section, and a vertical section connected to the horizontal section;
buckling the inverted U-shaped section on the first waterproof plate, and enabling the wing plate of the inverted U-shaped section to be attached to the concrete structure;
the horizontal section is placed on the surface of the steel stair.
In one embodiment of the invention, the first flashing is arranged by attaching the first flashing part to the reinforcement and fixedly connecting the first flashing part to the reinforcement. The first waterproof board is attached to the portion, arranged on the reinforcing piece, of the first waterproof board and embedded in the concrete structure, the first waterproof board is partially exposed outside the concrete structure, the first waterproof board exposed outside the concrete structure is fixedly welded to the surface of the ladder beam on the side edge of the steel stair, and therefore the first waterproof board is arranged at the joint in a blocking mode and plays a role in water prevention.
In one embodiment of the invention, when the steel stair is installed, the steel stair and the concrete structure are connected by using a waterproof mortar structure.
In one embodiment of the invention, the method further comprises the steps of constructing a surface layer on the top surface of the steel stair, and fixedly burying the first waterproof plate and the second waterproof plate by using the constructed surface layer.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. The utility model provides a concrete structure and steel stair waterproof node which characterized in that includes:
the reinforcing piece is embedded in the concrete structure and corresponds to the arrangement position of the steel stair;
the first waterproof plate is connected with the reinforcing piece and can be bent, a template of the concrete structure is attached to the first waterproof plate when the concrete structure is poured, and the first waterproof plate is bent to be attached to the surface of the steel stair after the concrete structure is formed; and
and the second waterproof plate is arranged on the top surface of the steel stair and connected with the first waterproof plate, and the second waterproof plate is in a non-straight shape.
2. The concrete structure and steel stair waterproof node of claim 1, wherein the second waterproof board comprises an inverted U-shaped section fastened on the first waterproof board, a horizontal section disposed on the surface of the steel stair and connected with the inverted U-shaped section, and a vertical section connected with the horizontal section, and a wing plate of the inverted U-shaped section is attached to the concrete structure.
3. The concrete structure and steel stair waterproof node of claim 1, wherein the first waterproof plate is partially attached and fixedly connected to the reinforcing member.
4. The concrete structure and steel stair waterproof node of claim 1, wherein a waterproof mortar structure is arranged at the joint of the steel stair and the concrete structure.
5. The concrete structure and steel stair waterproof node as claimed in claim 1, further comprising a surface layer arranged on the top surface of the steel stair, wherein the surface layer is embedded with the first waterproof plate and the second waterproof plate.
6. A method of constructing a concrete structure and steel stair watertight joint according to claim 1, comprising the steps of:
when a concrete structure is constructed, a reinforcement is embedded in the constructed concrete structure, and the arrangement position of the reinforcement corresponds to the arrangement position of a steel stair to be constructed;
providing a first waterproof plate, connecting the first waterproof plate with the reinforcing piece, and bending the first waterproof plate to be attached to a concrete structure template when a concrete structure is constructed;
after the concrete structure is constructed, installing a steel stair, and bending a first waterproof plate to be attached to the surface of the steel stair;
and providing a second waterproof plate, connecting the second waterproof plate with the first waterproof plate and placing the second waterproof plate on the top surface of the steel stair, wherein the second waterproof plate is non-flat.
7. The construction method according to claim 6, wherein the second waterproof sheet provided includes an inverted U-shaped section, a horizontal section connected to the inverted U-shaped section, and a vertical section connected to the horizontal section;
buckling the inverted U-shaped section on a first waterproof plate, and enabling a wing plate of the inverted U-shaped section to be attached to the concrete structure;
and placing the horizontal section on the surface of the steel stair.
8. The method of claim 6, wherein the first flashing is provided by attaching the first flashing portion to the reinforcing member and fixedly connecting the first flashing portion to the reinforcing member.
9. The construction method according to claim 6, wherein the steel stairway is connected with the concrete structure by a waterproof mortar structure when the steel stairway is installed.
10. The construction method according to claim 6, further comprising constructing a surface layer on the top surface of the steel stair, and embedding the first waterproof sheet and the second waterproof sheet with the constructed surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210612167.8A CN114941382B (en) | 2022-05-31 | 2022-05-31 | Waterproof node for concrete structure and steel stair and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210612167.8A CN114941382B (en) | 2022-05-31 | 2022-05-31 | Waterproof node for concrete structure and steel stair and construction method thereof |
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| CN114941382A true CN114941382A (en) | 2022-08-26 |
| CN114941382B CN114941382B (en) | 2023-12-08 |
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| CN107489238A (en) * | 2016-06-13 | 2017-12-19 | 中铁十二局集团有限公司 | A kind of waterproofing process of the movement joint of the roofing for successfully managing deformation condition and top plate |
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| CN107119865A (en) * | 2017-05-26 | 2017-09-01 | 江苏中城工业化住宅制造有限公司 | A kind of assembled steel skeleton lightweight concrete composition stair |
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| CN209457294U (en) * | 2018-11-22 | 2019-10-01 | 江苏和天下节能科技股份有限公司 | A kind of precast stair convenient for adjusting stairway width |
| CN209874098U (en) * | 2019-05-13 | 2019-12-31 | 重庆渝高科技产业(集团)股份有限公司 | Building wall waterproof structure with externally hung stairs |
| CN110847393A (en) * | 2019-12-18 | 2020-02-28 | 中国建筑第四工程局有限公司 | Rapidly-assembled stepped waterproof edge folding plate |
| CN111827493A (en) * | 2020-06-04 | 2020-10-27 | 绿城房地产集团有限公司 | Waterproof structure of balcony door lower opening node |
| CN213710150U (en) * | 2020-10-22 | 2021-07-16 | 安徽富煌建筑设计研究有限公司 | Connecting structure of precast concrete stair and ladder beam |
| CN213979651U (en) * | 2020-11-10 | 2021-08-17 | 南通长城建筑科技有限公司 | Prefabricated staircase that light composite formwork exempts from to tear open |
| CN214833590U (en) * | 2020-11-18 | 2021-11-23 | 信息产业电子第十一设计研究院科技工程股份有限公司 | Drainage ditch structure at joint of elevated unloading platform and warehouse body of logistics warehouse |
| CN214531602U (en) * | 2021-03-25 | 2021-10-29 | 上海天华建筑设计有限公司 | Arch-shaped anti-seismic connecting joint of prefabricated reinforced concrete stair |
| CN215630742U (en) * | 2021-04-08 | 2022-01-25 | 广东睿固建设科技有限公司 | Deformation joint waterproof construction is striden to roofing height |
| CN214995392U (en) * | 2021-05-31 | 2021-12-03 | 远大住宅工业（上海）有限公司 | Prefabricated staircase side connected node |
| CN113431215A (en) * | 2021-06-29 | 2021-09-24 | 中建五局第三建设有限公司 | Waterproof structure of building bearing plate concrete construction joint and construction method thereof |
| CN113931295A (en) * | 2021-10-20 | 2022-01-14 | 富利建设集团有限公司 | Prefabricated building and construction method thereof |
| CN216552442U (en) * | 2021-12-01 | 2022-05-17 | 厦门佰地建筑设计有限公司 | Prefabricated staircase and cast-in-place shear force wall connection structure |
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