CN112282098B - Steel bar bending type connecting node of combined shear wall and floor slab and construction method thereof - Google Patents
Steel bar bending type connecting node of combined shear wall and floor slab and construction method thereof Download PDFInfo
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- CN112282098B CN112282098B CN202011123893.0A CN202011123893A CN112282098B CN 112282098 B CN112282098 B CN 112282098B CN 202011123893 A CN202011123893 A CN 202011123893A CN 112282098 B CN112282098 B CN 112282098B
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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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
- 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
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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
- 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
- E04B2005/324—Floor structures wholly cast in situ with or without form units or reinforcements with peripheral anchors or supports
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- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a steel bar bending type connecting node of a combined shear wall and a floor slab and a construction method thereof, wherein the steel bar bending type connecting node comprises a horizontal ear plate and a horizontal T-shaped anchor plate, the combined shear wall is a double-steel-plate-concrete combined shear wall, and the floor slab is a reinforced concrete floor slab; the horizontal ear plate is welded on the outer side of the outer steel plate of the double-steel-plate-concrete combined shear wall, and the horizontal T-shaped anchor plate is welded on the inner side of the outer steel plate of the double-steel-plate-concrete combined shear wall; the reinforced concrete floor slab comprises reinforcing steel bars perpendicular to the combined shear wall and reinforcing steel bars parallel to the combined shear wall, the tail ends of the reinforcing steel bars perpendicular to the combined shear wall are bent and welded on the horizontal lug plates, and a first reinforcing steel bar close to the horizontal lug plates in the reinforcing steel bars parallel to the combined shear wall is also welded on the horizontal lug plates in a bending mode. The connecting joint has simple structure and convenient construction, and can conveniently realize the connection between the double-steel-plate-concrete combined shear wall and the reinforced concrete floor slab.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a steel bar bending type connecting node of a combined shear wall and a floor slab and a construction method thereof.
Background
With the development of economy and society in China, new super high-rise buildings continuously appear in the building history, and the development of building materials and building structure technology is continued behind the new super high-rise buildings. The novel efficient combined building structure rapidly developed in recent years is a double-steel-plate-concrete combined shear wall, and the double-steel-plate-concrete combined shear wall can give full play to the material properties of concrete and steel plates and has good construction conditions and earthquake resistance. The application of the double-steel-plate-concrete combined shear wall in the super high-rise building can effectively reduce the thickness of the core tube shear wall, enhance the shock resistance of the building, increase the using area of the building and generate good economic benefit. However, at present, there is no reliable construction method for connecting the double steel plate-concrete combined shear wall and the reinforced concrete floor slab, which limits the application of the double steel plate-concrete combined shear wall in high-rise and super high-rise buildings.
Disclosure of Invention
The invention aims to provide a steel bar bending type connecting node of a combined shear wall and a floor slab and a construction method thereof, which are used for solving the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a steel bar bending type connecting node of a combined shear wall and a floor slab, which comprises a horizontal ear plate and a horizontal T-shaped anchor plate, wherein the combined shear wall is a double-steel-concrete combined shear wall, and the floor slab is a reinforced concrete floor slab; the horizontal ear plate is welded on the outer side of the outer steel plate of the double-steel-plate-concrete combined shear wall, and the horizontal T-shaped anchor plate is welded on the inner side of the outer steel plate of the double-steel-plate-concrete combined shear wall; the reinforced concrete floor slab comprises reinforcing steel bars perpendicular to the combined shear wall and reinforcing steel bars parallel to the combined shear wall, the tail ends of the reinforcing steel bars perpendicular to the combined shear wall are bent and welded on the horizontal lug plates, and a first reinforcing steel bar close to the horizontal lug plates in the reinforcing steel bars parallel to the combined shear wall is also welded on the horizontal lug plates in a bending mode.
Preferably, the ends of the steel bars perpendicular to the combined shear wall are welded on the horizontal ear plates by multi-fold 90-degree bending.
Preferably, a first reinforcing steel bar close to the horizontal lug plate in the reinforcing steel bars parallel to the combined shear wall in the reinforced concrete floor is bent and welded on the horizontal lug plate in a multi-fold shape at 90 degrees.
The invention also provides a construction method of the steel bar bending type connecting node of the combined shear wall and the floor slab, which is applied to the steel bar bending type connecting node of the combined shear wall and the floor slab and comprises the following steps:
and (3) prefabrication stage of a factory: firstly, welding a horizontal lug plate on the position, corresponding to the middle of a floor slab, on the outer side of an outer steel plate of the double-steel-plate-concrete combined shear wall; then welding a horizontal T-shaped anchor plate on the inner side of an outer steel plate of the double-steel-plate-concrete combined shear wall, wherein the horizontal T-shaped anchor plate corresponds to the horizontal ear plate; finally, connecting the horizontal ear plate, the outer steel plate of the double-steel-plate concrete combined shear wall and the horizontal T-shaped anchor plate into a whole to finish the prefabrication stage of a factory;
and (3) field construction stage: after the construction of the double-steel-plate-concrete combined shear wall is completed, the construction of a reinforced concrete floor slab is started; firstly, pre-bending the tail end of a steel bar perpendicular to the combined shear wall by 90 degrees and multi-fold-shaped bending the first steel bar in the steel bar parallel to the combined shear wall by 90 degrees; then, after the bottom template of the reinforced concrete floor slab is laid, bending and welding a first reinforcing steel bar in reinforcing steel bars which are vertically parallel to the combined shear wall and the tail ends of the reinforcing steel bars which are vertical to the combined shear wall on the horizontal lug plates; and finally, pouring floor concrete, and finishing the field construction stage when the strength of the concrete meets the requirement.
Preferably, the bending requirement of the 90 ° bend of the end of the reinforcing steel bar perpendicular to the combined shear wall is: the top surface of the bent horizontal ear plate is flush with the bent inner surface of the upper part of the reinforced concrete floor slab, which is vertical to the steel bars of the combined shear wall, and the bottom surface of the horizontal ear plate is flush with the bent inner surface of the lower part of the reinforced concrete floor slab, which is vertical to the steel bars of the combined shear wall.
Preferably, the bending requirement of the multifold 90 ° bend of the first reinforcing steel bar close to the horizontal ear plate among the reinforcing steel bars parallel to the combined shear wall is as follows: the top surfaces of the horizontal lug plates are flush with the inner surface of the reinforced concrete floor slab, which is parallel to the bent reinforcing steel bars of the combined shear wall, and the bottom surfaces of the horizontal lug plates are flush with the inner surface of the reinforced concrete floor slab, which is parallel to the bent reinforcing steel bars of the combined shear wall, at the lower part of the reinforced concrete floor slab.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a steel bar bending type connecting node of a combined shear wall and a floor slab and a construction method thereof.A novel node steel bar anchoring mode has the outstanding characteristics that a horizontal T-shaped anchor plate is welded at the inner side of an outer steel plate of a double-steel-concrete combined shear wall, and a connecting node is formed by a horizontal lug plate, a steel bar vertical to the combined shear wall in a reinforced concrete floor slab and a steel bar parallel to the combined shear wall at the outer side; secondly, the reinforcing steel bars of the reinforced concrete floor slab, which are perpendicular to the combined shear wall, are welded on the horizontal lug plates in a tail end bending mode, so that not only can the shearing force be transmitted through welding seams, but also the effect of anchoring the vertical stressed reinforcing steel bars is achieved; and thirdly, the multi-fold 90-degree bending of the first reinforcing steel bar of the reinforced concrete floor slab parallel to the combined shear wall is welded on the horizontal ear plate, so that the shear parallel to the shear wall can be transmitted through the welding line, and the integrity of the node is enhanced. The connecting structure can ensure the load transmission between the reinforced concrete floor and the double-steel-plate-concrete combined shear wall, has good stress performance, enhances the anchoring effect of the reinforcing steel bars and enhances the integrity of the connecting structure. Meanwhile, the connecting joint is simple in structure and convenient to construct, and can conveniently realize the connection between the double-steel-plate-concrete combined shear wall and the reinforced concrete floor slab. The invention improves the applicability of the connection of the double-steel-plate-concrete combined shear wall and the reinforced concrete floor slab in the super high-rise building, and has wide application prospect in the super high-rise building.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a front side of a factory prefabrication stage perspective view of a steel bar bending type connecting node of a double steel plate-concrete combined shear wall and a reinforced concrete floor slab;
FIG. 2 is a back side of a factory prefabrication stage perspective view of a steel bar bending type connecting node of a double steel plate-concrete combined shear wall and a reinforced concrete floor slab;
FIG. 3 is a detailed view of a steel bar bending type connection node structure of a double steel plate-concrete combined shear wall and a reinforced concrete floor slab;
fig. 4 is a perspective view of a steel bar bending type connection node of a double steel plate-concrete combined shear wall and a reinforced concrete floor slab.
In the figure: 1-double steel plate-concrete combined shear wall; 2-reinforced concrete floor slab;
3-horizontal T-shaped anchor plate; 4-horizontal ear plate;
11-double steel plate-concrete combined shear wall steel plate;
21-steel bars perpendicular to the combined shear wall; 22-the rebars parallel to the composite shear wall.
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.
The invention aims to provide a steel bar bending type connecting node of a combined shear wall and a floor slab and a construction method thereof, which are used for solving the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 4, the present embodiment provides a bending type reinforcing bar connection node of a combined shear wall and a floor slab and a construction method thereof, wherein the bending type reinforcing bar connection node includes a double steel plate-concrete combined shear wall 1, a horizontal ear plate 4, a horizontal T-shaped anchor plate, and a reinforced concrete floor slab 2.
The horizontal ear plate 4 is welded on the outer side of the outer steel plate 11 of the double-steel-plate concrete combined shear wall. The horizontal T-shaped anchor plate is welded on the inner side of the outer steel plate 11 of the double-steel-plate-concrete combined shear wall. The reinforced concrete floor 2 comprises a concrete floor, a reinforcing steel bar 21 vertical to the combined shear wall and a reinforcing steel bar 22 parallel to the combined shear wall, wherein the tail end of the reinforcing steel bar 21 vertical to the combined shear wall is bent and welded on a steel plate by adopting a multi-fold 90-degree bend, the load is transferred through a welding line, and the reinforced concrete floor also plays a role in anchoring a vertical stressed reinforcing steel bar; the multi-fold 90-degree bending of the first steel bar of the steel bar 22 of the reinforced concrete floor slab 2 parallel to the combined shear wall is welded on the horizontal ear plate 4, so that the shear parallel to the shear wall can be transmitted through a welding seam, and the integrity of the node is enhanced.
The structure of the connecting joint can ensure the load transmission between the reinforced concrete floor 2 and the double-steel-plate-concrete combined shear wall 1: the reinforced concrete floor slab 2 → (a bent portion of the end of the reinforcing bar 21 perpendicular to the combined shear wall →) the horizontal otic placode 4 → the double steel plate-concrete combined shear wall 1. The tail ends of the steel bars 21 perpendicular to the combined shear wall in the reinforced concrete floor slab 2 are anchored in a welding mode, and the tail ends of the steel bars 21 perpendicular to the combined shear wall are bent and welded on the horizontal lug plates 4, so that the aim of reliably anchoring the steel bars is fulfilled, and meanwhile, the shear force perpendicular to the shear wall is transmitted through welding seams. A first steel bar in the steel bars 22 parallel to the combined shear wall in the reinforced concrete floor slab 2 is bent by multiple folds at 90 degrees and welded on the horizontal lug plate 4, so that the integrity of the joint is enhanced, and the shear force parallel to the shear wall is transmitted through a welding line.
The construction method of the steel bar bending type connecting node of the combined shear wall and the floor slab comprises the following two stages:
and (3) prefabrication stage of a factory: firstly, welding a horizontal ear plate 4 on a proper position at the outer side of an outer steel plate 11 of the double-steel-plate-concrete combined shear wall, namely the middle of a floor slab; then, the horizontal T-shaped anchor plate 3 is welded to the inner side of the outer steel plate 11 of the double-steel-plate-concrete combined shear wall, and the position of the horizontal T-shaped anchor plate is consistent with that of the horizontal ear plate 4, so that the horizontal ear plate 4, the outer steel plate 11 of the double-steel-concrete combined shear wall and the horizontal T-shaped anchor plate 3 are connected into a whole, i.e. the prefabrication stage of the factory is completed, as shown in fig. 1 and fig. 2.
And (3) field construction stage: in the stage, after the construction of the double-steel-plate-concrete combined shear wall 1 is completed, the construction of the reinforced concrete floor slab 2 is started. Firstly, the 90-degree bending of the tail end of the steel bar 21 perpendicular to the combined shear wall is preformed (the 90-degree bending of the tail end of the steel bar 21 perpendicular to the combined shear wall is to ensure that the top surface of the horizontal ear plate 4 is flush with the inner surface of the reinforced concrete floor slab 2 after the upper part of the reinforced concrete floor slab is perpendicular to the bent steel bar 21 of the combined shear wall, and the bottom surface of the horizontal ear plate 4 is flush with the inner surface of the reinforced concrete floor slab after the lower part of the reinforced concrete combined floor slab is perpendicular to the bent steel bar 21 of the combined shear wall, so that the floor slab is vertically welded on the ear plate in the vertical bending part of the shear wall later), and the 90-degree bending of the first steel bar in the steel bar 22 parallel to the combined shear wall (the 90-degree bending of the steel bar is to ensure that the top surface of the horizontal ear plate 4 is flush with the inner surface of the reinforced concrete floor slab 2 after the upper part of the reinforced concrete floor slab is parallel to the bent steel bar 22 of the combined shear wall, and the bottom surface of the horizontal ear plate 4 and the reinforced concrete combined floor slab is parallel to the bent inner surface of the bent steel bar 22 of the combined shear wall Leveling so as to weld the parts of the bent reinforcing steel bars 22 which are parallel to the combined shear wall up and down on the floor slab on the lug plates later); then, after the bottom template of the reinforced concrete floor slab 2 is laid, the tail ends of a first reinforcing steel bar of the reinforcing steel bar 22 which is up and down parallel to the combined shear wall and a reinforcing steel bar 21 which is vertical to the combined shear wall are bent and welded on the horizontal ear plates 4; and finally, pouring floor concrete, and finishing the on-site construction stage when the strength of the concrete meets the requirement, such as fig. 3 and 4.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. The formula connected node is buckled with the reinforcing bar of floor to combination shear wall, its characterized in that: the combined shear wall is a double-steel-plate-concrete combined shear wall, and the floor slab is a reinforced concrete floor slab; the horizontal ear plate is welded on the outer side of the outer steel plate of the double-steel-plate-concrete combined shear wall, and the horizontal T-shaped anchor plate is welded on the inner side of the outer steel plate of the double-steel-plate-concrete combined shear wall; the reinforced concrete floor slab comprises reinforcing steel bars perpendicular to the combined shear wall and reinforcing steel bars parallel to the combined shear wall, the tail ends of the reinforcing steel bars perpendicular to the combined shear wall are bent and welded on the horizontal lug plates, and a first reinforcing steel bar close to the horizontal lug plates in the reinforcing steel bars parallel to the combined shear wall is also welded on the horizontal lug plates in a bending mode.
2. A rebar bending type connecting node of a combined shear wall and a floor slab as claimed in claim 1, wherein: the tail ends of the steel bars vertical to the combined shear wall are bent and welded on the horizontal ear plates in a multi-fold 90-degree mode.
3. A rebar bending type connecting node of a combined shear wall and a floor slab as claimed in claim 1, wherein: and a first reinforcing steel bar close to the horizontal lug plate in reinforcing steel bars parallel to the combined shear wall in the reinforced concrete floor is bent and welded on the horizontal lug plate in a multi-fold shape at 90 degrees.
4. The construction method of the steel bar bending type connecting node of the combined shear wall and the floor slab is applied to the steel bar bending type connecting node of the combined shear wall and the floor slab, which is characterized by comprising the following steps of:
and (3) prefabrication stage of a factory: firstly, welding a horizontal lug plate on the position, corresponding to the middle of a floor slab, on the outer side of an outer steel plate of the double-steel-plate-concrete combined shear wall; then welding a horizontal T-shaped anchor plate on the inner side of an outer steel plate of the double-steel-plate-concrete combined shear wall, wherein the horizontal T-shaped anchor plate corresponds to the horizontal ear plate; finally, connecting the horizontal ear plate, the outer steel plate of the double-steel-plate concrete combined shear wall and the horizontal T-shaped anchor plate into a whole to finish the prefabrication stage of a factory;
and (3) field construction stage: after the construction of the double-steel-plate-concrete combined shear wall is completed, the construction of a reinforced concrete floor slab is started; firstly, pre-bending the tail end of a steel bar perpendicular to the combined shear wall by 90 degrees and multi-fold-shaped bending the first steel bar in the steel bar parallel to the combined shear wall by 90 degrees; then, after the bottom template of the reinforced concrete floor slab is laid, bending and welding a first reinforcing steel bar in reinforcing steel bars which are vertically parallel to the combined shear wall and the tail ends of the reinforcing steel bars which are vertical to the combined shear wall on the horizontal lug plates; and finally, pouring floor concrete, and finishing the field construction stage when the strength of the concrete meets the requirement.
5. The method of constructing a rebar bending type connecting node of a combined shear wall and a floor slab as claimed in claim 4, wherein: the bending requirement of 90-degree bending at the tail end of the steel bar vertical to the combined shear wall is as follows: the top surface of the bent horizontal ear plate is flush with the bent inner surface of the upper part of the reinforced concrete floor slab, which is vertical to the steel bars of the combined shear wall, and the bottom surface of the horizontal ear plate is flush with the bent inner surface of the lower part of the reinforced concrete floor slab, which is vertical to the steel bars of the combined shear wall.
6. The method of constructing a rebar bending type connecting node of a combined shear wall and a floor slab as claimed in claim 4, wherein: the bending requirement of the multi-fold 90-degree bending of the first steel bar close to the horizontal ear plate in the steel bars parallel to the combined shear wall is as follows: the top surfaces of the horizontal lug plates are flush with the inner surface of the reinforced concrete floor slab, which is parallel to the bent reinforcing steel bars of the combined shear wall, and the bottom surfaces of the horizontal lug plates are flush with the inner surface of the reinforced concrete floor slab, which is parallel to the bent reinforcing steel bars of the combined shear wall, at the lower part of the reinforced concrete floor slab.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011123893.0A CN112282098B (en) | 2020-10-20 | 2020-10-20 | Steel bar bending type connecting node of combined shear wall and floor slab and construction method thereof |
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| CN202011123893.0A CN112282098B (en) | 2020-10-20 | 2020-10-20 | Steel bar bending type connecting node of combined shear wall and floor slab and construction method thereof |
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| CN112282098A CN112282098A (en) | 2021-01-29 |
| CN112282098B true CN112282098B (en) | 2022-04-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010275740A (en) * | 2009-05-27 | 2010-12-09 | Shigeru Yaguchi | Reinforced structure |
| CN106351374A (en) * | 2016-07-15 | 2017-01-25 | 刘祥锦 | Connecting node of assembled whole thick prefabricated slab unit and slab unit thereof |
| CN106836597B (en) * | 2017-03-21 | 2019-02-26 | 中国航空规划设计研究总院有限公司 | A kind of fixed device of cassette ceiling core model and its construction method |
| KR101819536B1 (en) * | 2017-07-25 | 2018-02-28 | 주식회사 에이치앤파트너 | the improved shear bar unit for concrete wall and the arranging method of reinforcing bar using the same |
| CN110469040A (en) * | 2019-03-27 | 2019-11-19 | 于鲁辉 | High ductility wall plate member with three-dimensional bending arrangement of reinforcement |
| CN110206164B (en) * | 2019-06-18 | 2024-06-11 | 中国建筑东北设计研究院有限公司 | Connecting structure of steel plate-encased concrete composite shear wall and concrete floor slab and construction method thereof |
| CN110273481B (en) * | 2019-07-30 | 2023-12-29 | 华侨大学 | Connecting node of double-steel-plate combined shear wall and floor slab and construction method thereof |
| CN110644624A (en) * | 2019-09-16 | 2020-01-03 | 佛山建装建筑科技有限公司 | Building connection node and construction method thereof |
| CN111173122A (en) * | 2020-02-11 | 2020-05-19 | 中冶建筑研究总院（深圳）有限公司 | Floor structure and residential system with combined structure |
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