CN114737686A - Expansion joint structure of steel structure floor plate and installation and construction method thereof - Google Patents
Expansion joint structure of steel structure floor plate and installation and construction method thereof Download PDFInfo
- Publication number
- CN114737686A CN114737686A CN202210388633.9A CN202210388633A CN114737686A CN 114737686 A CN114737686 A CN 114737686A CN 202210388633 A CN202210388633 A CN 202210388633A CN 114737686 A CN114737686 A CN 114737686A
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- Prior art keywords
- steel
- expansion joint
- bearing plate
- floor slab
- steel bars
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 144
- 239000010959 steel Substances 0.000 title claims abstract description 144
- 238000010276 construction Methods 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 title claims abstract description 10
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000009417 prefabrication Methods 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 17
- 238000013461 design Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000011376 self-consolidating concrete Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
Images
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
- 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
- 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
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
-
- 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
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
- E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an expansion joint structure of a steel structure floor plate, wherein the steel structure floor plate comprises a steel bearing plate, and the steel structure floor plate is supported on a main steel beam; the expansion joint structure is provided with a finished expansion joint device and an assembled floor block, and the finished expansion joint device is manufactured in a factory prefabrication mode; during on-site construction, concrete is poured into gaps reserved at two ends of the finished expansion joint device to form the fabricated floor block. The invention also discloses an installation and construction method of the expansion joint structure. By adopting the technical scheme, the construction precision of the construction process is effectively controlled, the integral stability of the member is improved, and the construction procedures are simplified; the prefabricated concrete is prefabricated in a factory and integrally formed, batch and standardized manufacturing and application are facilitated, manual loss is reduced, cost is saved, construction period is shortened, and practicability is high.
Description
Technical Field
The invention belongs to the technical field of steel structure building construction. Specifically, the invention relates to a steel structure floor slab expansion joint structure. The invention also relates to an installation and construction method of the expansion joint structure.
Background
The construction of steel construction floor slab expansion joint among the prior art needs to pass through processes such as measurement location, bottom plate are laid, the reinforcing bar is laid, the expansion joint template is kept apart, the template is demolishd, the expansion joint is handled, expansion joint secondary construction, and the process is numerous and diverse, and the construction cycle is long, is unfavorable for project fine-grained management.
Disclosure of Invention
The invention provides an expansion joint structure of a steel structure floor slab, and aims to improve the construction efficiency and the construction precision of the expansion joint.
In order to achieve the purpose, the invention adopts the technical scheme that:
according to the expansion joint structure of the steel structure floor plate, the steel structure floor plate comprises a steel bearing plate, and the steel structure floor plate is supported on a main steel beam; the expansion joint structure is provided with a finished expansion joint device and an assembled floor block, and the finished expansion joint device is manufactured in a factory prefabrication mode; during on-site construction, concrete is poured into the gaps reserved at the two ends of the finished expansion joint device to form the assembled floor block.
The steel bearing plate is YX-76-344-688 steel bearing plate.
Arranging longitudinal steel bars and transverse steel bars on the steel bearing plate; before cast-in-place, the longitudinal steel bars and the transverse steel bars are respectively supported by steel bar stirrups.
The longitudinal steel bars and the transverse steel bars extend out of the steel bearing plate; and a plugging template is supported at the end part during site construction.
The steel bearing plate is clamped on the main steel beam through the bottom supporting clamp, and the steel bearing plate is fixedly connected with the bottom supporting clamp 7 through the welding nails 8.
In order to achieve the same purpose as the technical scheme, the invention also provides an installation and construction method of the steel structure floor slab expansion joint structure, which comprises the following steps:
step 2, laying a steel bearing plate on a preset processing table, sequentially laying longitudinal steel bars and transverse steel bars according to design requirements, placing steel bar stirrups, measuring axes and elevations, paying off, and accurately positioning to ensure the spacing between the steel bars; steel bearing plates extend outwards from the reinforcing steel bars at two ends, and plugging templates are supported at the end parts;
according to design requirements, reserving an area overlapped with a cast-in-place floor slab in a form of an assembled floor slab, determining a pouring position, erecting a template, pouring concrete to form a steel bearing plate full support, and pouring the assembled floor slab with self-compacting concrete at two ends of the finished product expansion joint device along the extension direction;
step 6, maintaining the assembled expansion joint integrated plate, and completing prefabrication;
7, transporting the component to a construction site, and hoisting the component to the position of the expansion joint; accurately positioning according to design requirements, so that the bottom supporting fixture is fixed on the main steel beam and clamped;
and 9, maintaining and carrying out the next working procedure.
By adopting the technical scheme, the construction precision of the construction process is effectively controlled, the integral stability of the member is improved, and the construction procedures are simplified; the prefabricated concrete is prefabricated in a factory and integrally formed, batch and standardized manufacturing and application are facilitated, manual loss is reduced, cost is saved, construction period is shortened, and practicability is high.
Drawings
The contents of the drawings and the reference numbers in the drawings are briefly described as follows:
FIG. 1 is a schematic view of a steel bearing plate type of the present invention;
FIG. 2 is a schematic view of an assembled expansion joint structure according to the present invention;
fig. 3 is a schematic view of the connection node structure of the lower part of the steel structure floor slab and the main steel beam.
Labeled as:
1. steel bearing plate (YX-76-344) 688), 2, finished product expansion joint device, 3, assembled floor block, 4, longitudinal steel bars, 5, transverse steel bars, 6, concrete, 7, bottom supporting clamps, 8, welding nails, 9 and main steel beams.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.
As shown in fig. 1 to 3, the structure of the present invention is an integral structure of an expansion joint of a steel structure floor slab, wherein the steel structure floor slab comprises a steel bearing plate 1, and the steel structure floor slab is supported on a main steel beam 9.
In order to solve the problems in the prior art, overcome the defects and achieve the purpose of improving the construction efficiency and the construction precision of the expansion joint, the invention adopts the technical scheme that:
as shown in fig. 2 to 3, the expansion joint structure of the steel structure floor slab of the invention is provided with a finished expansion joint device 2 and an assembled floor block 3, wherein the finished expansion joint device 2 is manufactured in a factory prefabrication manner; during on-site construction, concrete 6 is poured into the gaps reserved at the two ends of the finished expansion joint device 2 to form the fabricated floor block 3.
The technical scheme of the invention is applied to the construction of the expansion joint of the steel structure floor slab, and the assembled expansion joint integrated plate is manufactured by adopting a mode of factory prefabrication and network unit block assembly, so that the process fine control is strived, the construction precision of the construction process is effectively controlled, the integral stability of the component is improved, the construction procedures are simplified, and the construction efficiency is improved; adopt the prefabricated processing of batch production, integrated into one piece is favorable to batchization, standardized preparation and application, reduces artifical loss, practices thrift the cost, shortens construction period, and the practicality is strong, promotes the direction research and provides diversified selection for the project management that becomes more meticulous.
The steel bearing plate 1 is a YX-76-344-688 steel bearing plate.
The YX76-344-688 type open floor steel bearing plate is a profiled steel plate, is used as a permanent template of a concrete floor slab, is used as a lower stressed steel bar of the floor slab to participate in the stress calculation of the floor slab, and works together with the concrete to form a combined floor slab. The composite floor slab has high rigidity, convenient and quick construction and is convenient for the construction requirement of industrial production of the composite floor slab. The profiled steel sheet of the composite floor slab should adopt a galvanized steel sheet, and the thickness of a galvanized layer of the profiled steel sheet still should meet the requirement of no rust damage during the service life.
As shown in fig. 2 and 3, longitudinal steel bars 4 are laid on the bottom layer of the groove of the steel bearing plate 1, and transverse steel bars 5 are laid on the upper plane of the steel bearing plate 1; and then upwards at a certain distance, supporting by a reinforcement stirrup, laying transverse reinforcements 5, and then laying longitudinal reinforcements 4.
The longitudinal steel bars 4 and the transverse steel bars 5 extend out of the steel bearing plate 1; and a plugging template is supported at the end part during site construction.
The longitudinal steel bars 4 and the transverse steel bars 5 extend out of the steel bearing plate by 0.5m and are used for lap joint during construction and welded connection, so that the connection strength and reliability are improved.
The steel carrier plate 1 is clamped on the main steel beam 9 through the bottom supporting clamp 7, and the steel carrier plate 1 and the bottom supporting clamp 7 are fixedly connected through the welding nails 8.
As shown in fig. 3, the bottom-supporting fixture 7 is clamped downwards on the main steel beam 9, and the bottom-supporting fixture 7 and the steel bearing plate 1 are connected into a whole, so that the overall structure is stable and reliable.
In order to achieve the same purpose as the technical scheme, the invention also provides an installation and construction method of the steel structure floor slab expansion joint structure, which comprises the following steps:
general parts and standard parts can be obtained by purchasing; such as YX-76-344-; part of purchased parts and self-made parts need to be processed; after the processing is finished, placing a finished product or semi-finished product placing area for use;
step 2, laying a steel bearing plate 1 on a preset processing table, sequentially laying longitudinal steel bars 4 and transverse steel bars 5 according to design requirements, placing steel bar stirrups, measuring axes and elevations, paying off, accurately positioning and ensuring the spacing between the steel bars; steel bearing plates 1 extend outwards from the reinforcing steel bars at two ends, and plugging templates are supported at the end parts; the reinforcing steel bars at the two ends can extend out of the YX-76-344 and 688 steel bearing plates by 0.5 m;
step 5, according to design requirements, as shown in fig. 2, reserving an area overlapped with a cast-in-place floor slab in the form of an assembled floor slab 3, determining a pouring position, erecting a template, pouring concrete 6 to form a full-support structure of the steel bearing plate 1, and pouring the assembled floor slab 3 of the self-compacting concrete 6 at two ends of the finished expansion joint device 2 in the extending direction;
step 6, maintaining the assembled expansion joint integrated plate, and completing prefabrication;
7, transporting the component to a construction site, and hoisting the component to the position of the expansion joint; according to the design requirement, as shown in fig. 3, the bottom-supporting fixture 7 is accurately positioned, fixed on the main steel beam 9 and clamped;
and 9, maintaining and carrying out the next working procedure.
The specific requirements of the implementation of the invention are as follows:
1. the processing and manufacturing of the double-box stiff column are all carried out in a factory, and the field installation difficulty is reduced.
2. The YX-76-344-688 steel bearing plate 1 is a plate type recommended by the steel structure, and a suitable plate type material can be adjusted according to the requirements of practical application;
3. the overhanging length and the type of the steel bar can be adjusted and selected according to the bearing capacity and the lap joint requirement;
4. the design core of the invention is as follows: the expansion joint and the periphery are made into a prefabricated assembly type floor block 3 in an industrial prefabrication mode, the concrete reserved at two ends is poured in situ, the steel bars are extended to be convenient for lap joint, and the integrity of the member and the cast-in-place floor is ensured;
5. before the installation of the step 7, the steel structure main frame and the cast-in-place floor part are completely laid, so that the assembled expansion joint integrated plate can be installed and placed on site;
6. the steel bar lapping mode can adopt welding, bolt connection, mechanical connection and the like;
7. and constructing unrescribed parts such as reinforcement binding, concrete pouring and the like in the factory manufacturing process according to the conventional process.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (6)
1. A steel structure floor slab expansion joint structure is disclosed, wherein the steel structure floor slab comprises a steel bearing plate (1), and the steel structure floor slab is supported on a main steel beam (9); the method is characterized in that: the expansion joint structure is provided with a finished product expansion joint device (2) and an assembly type floor block (3), and the finished product expansion joint device (2) is manufactured in a factory prefabrication mode; during on-site construction, concrete (6) is poured into the gaps reserved at the two ends of the finished expansion joint device (2) to form the assembled floor block (3).
2. The steel structure floor slab expansion joint structure of claim 1, wherein: the steel bearing plate (1) is a YX-76-344-688 steel bearing plate.
3. The steel structure floor slab expansion joint structure of claim 1, wherein: longitudinal steel bars (4) and transverse steel bars (5) are arranged on the steel bearing plate (1); before cast-in-place, the longitudinal steel bars (4) and the transverse steel bars (5) are respectively supported by steel bar stirrups.
4. The steel structure floor slab expansion joint structure of claim 3, wherein: the longitudinal steel bars (4) and the transverse steel bars (5) extend out of the steel bearing plate (1); and a plugging template is supported at the end part during site construction.
5. The steel structure floor slab expansion joint structure of claim 1, wherein: the steel bearing plate (1) is clamped on the main steel beam (9) through a bottom supporting clamp (7), and the steel bearing plate (1) and the bottom supporting clamp (7) are fixedly connected through a welding nail (8).
6. The installation and construction method of the expansion joint structure of the steel structure floor slab as claimed in any one of claims 1 to 5, wherein: the installation construction method comprises the following steps:
step 1, preparing a steel bearing plate (1), a finished expansion joint device (2), longitudinal steel bars (4), transverse steel bars (5), bottom supporting clamps (7) and welding nails (8) according to design requirements;
step 2, laying a steel bearing plate (1) on a preset processing table, sequentially laying longitudinal steel bars (4) and transverse steel bars (5) according to design requirements, placing steel bar stirrups, measuring axes and elevations, paying off, and accurately positioning to ensure the spacing between the steel bars; steel bearing plates (1) extend outwards from the reinforcing steel bars at two ends, and plugging templates are supported at the end parts;
step 3, calculating and determining the arrangement distance of the welding nails (8), and connecting a bottom supporting fixture (7) and the welding nails (8) at the bottom of the steel bearing plate (1) to form a local integral component;
step 4, accurately positioning, and placing the finished expansion joint device (2) at a fixed position;
step 5, reserving an area lapped with a cast-in-place floor slab in the form of an assembled floor slab (3) according to design requirements, determining a pouring position, erecting a template, pouring concrete (6) to form a full support of a steel bearing plate (1), and pouring the assembled floor slab (3) of the self-compacting concrete (6) at two ends of the finished expansion joint device (2) along the extension direction;
step 6, maintaining the assembled expansion joint integrated plate, and completing prefabrication;
7, transporting the component to a construction site, and hoisting the component to the position of the expansion joint; accurately positioning according to design requirements, so that the bottom supporting fixture (7) is fixed on the main steel beam (9) and clamped;
step 8, overlapping reserved steel bars, brushing an anticorrosive and antirust material on a welding part, and plugging a hole in place; integrally pouring and molding the reserved part of the assembled expansion joint integrated plate and the cast-in-place floor;
and 9, curing, and entering the next working procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210388633.9A CN114737686A (en) | 2022-04-13 | 2022-04-13 | Expansion joint structure of steel structure floor plate and installation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210388633.9A CN114737686A (en) | 2022-04-13 | 2022-04-13 | Expansion joint structure of steel structure floor plate and installation and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114737686A true CN114737686A (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210388633.9A Pending CN114737686A (en) | 2022-04-13 | 2022-04-13 | Expansion joint structure of steel structure floor plate and installation and construction method thereof |
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| Country | Link |
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| CN (1) | CN114737686A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026941A (en) * | 2022-07-04 | 2022-09-09 | 中国十七冶集团有限公司 | Manufacturing method of semi-assembled post-cast strip integrated plate for concrete floor slab |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444241A (en) * | 2010-10-15 | 2012-05-09 | 汕头市建安(集团)公司 | Multifunctional expansion joint device |
| CN203795614U (en) * | 2013-11-25 | 2014-08-27 | 贵阳铝镁设计研究院有限公司 | Deformation joint structure of radiant-heat-resistant high-strength floor |
| CN106836518A (en) * | 2017-02-28 | 2017-06-13 | 中国冶集团有限公司 | Floor of steel structure and the interstructural expanssion joint construction process of concrete |
| CN208023807U (en) * | 2018-01-11 | 2018-10-30 | 深圳市东大国际工程设计有限公司 | A kind of steel construction expansion joint floor |
| CN210482605U (en) * | 2019-08-23 | 2020-05-08 | 重庆建工第十一建筑工程有限责任公司 | Building structure movement joint mounting structure |
| CN211257814U (en) * | 2019-10-16 | 2020-08-14 | 中国建筑第二工程局有限公司 | Be used for post-cast floor confined device |
| CN215888646U (en) * | 2021-06-25 | 2022-02-22 | 深圳时代装饰股份有限公司 | Assembled floor expansion joint device |
-
2022
- 2022-04-13 CN CN202210388633.9A patent/CN114737686A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444241A (en) * | 2010-10-15 | 2012-05-09 | 汕头市建安(集团)公司 | Multifunctional expansion joint device |
| CN203795614U (en) * | 2013-11-25 | 2014-08-27 | 贵阳铝镁设计研究院有限公司 | Deformation joint structure of radiant-heat-resistant high-strength floor |
| CN106836518A (en) * | 2017-02-28 | 2017-06-13 | 中国冶集团有限公司 | Floor of steel structure and the interstructural expanssion joint construction process of concrete |
| CN208023807U (en) * | 2018-01-11 | 2018-10-30 | 深圳市东大国际工程设计有限公司 | A kind of steel construction expansion joint floor |
| CN210482605U (en) * | 2019-08-23 | 2020-05-08 | 重庆建工第十一建筑工程有限责任公司 | Building structure movement joint mounting structure |
| CN211257814U (en) * | 2019-10-16 | 2020-08-14 | 中国建筑第二工程局有限公司 | Be used for post-cast floor confined device |
| CN215888646U (en) * | 2021-06-25 | 2022-02-22 | 深圳时代装饰股份有限公司 | Assembled floor expansion joint device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026941A (en) * | 2022-07-04 | 2022-09-09 | 中国十七冶集团有限公司 | Manufacturing method of semi-assembled post-cast strip integrated plate for concrete floor slab |
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