CN113737980A - Connection node of reinforced concrete floor and reinforced concrete shear wall - Google Patents
Connection node of reinforced concrete floor and reinforced concrete shear wall Download PDFInfo
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- CN113737980A CN113737980A CN202110968433.6A CN202110968433A CN113737980A CN 113737980 A CN113737980 A CN 113737980A CN 202110968433 A CN202110968433 A CN 202110968433A CN 113737980 A CN113737980 A CN 113737980A
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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
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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
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
- E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a connection node of a reinforced concrete floor slab and a reinforced concrete shear wall, wherein the reinforced concrete floor slab comprises an upper rubber band and a lower rubber band, the reinforced concrete shear wall comprises a concrete wall body, the connection node also comprises an anchoring steel panel, the anchoring steel panel is fixedly connected with the concrete wall body, a first horizontal connecting plate and a second horizontal connecting plate are fixedly arranged on the anchoring steel panel, a distance exists between the first horizontal connecting plate and the second horizontal connecting plate in the vertical direction, horizontal shear structures are respectively arranged on the first horizontal connecting plate and the second horizontal connecting plate, the upper rubber band is lapped on the first horizontal connecting plate, the lower rubber band is lapped on the second horizontal connecting plate, and the first horizontal connecting plate and the second horizontal connecting plate are fixed with the upper rubber band and the lower rubber band through ultrahigh-performance concrete pouring. The connecting joint of the invention optimizes the structure, reduces the construction difficulty and simultaneously has good stress performance and comprehensive economic benefit.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a connecting node of a reinforced concrete floor slab and a reinforced concrete shear wall.
Background
In complex structural engineering such as nuclear power stations and the like, the condition that longitudinal bars of a Reinforced Concrete (RC) floor slab are obliquely crossed with a Reinforced Concrete (RC) shear wall often occurs, at the moment, the longitudinal bars of the RC floor slab are not parallel to the normal direction of the outer surface of the RC shear wall, and the RC floor slab is difficult to be directly inserted into the RC shear wall to be anchored with concrete. For this reason, the prior art generally adopts a mode of indirect overlapping of reinforcing bars, that is, a lapping reinforcing bar layer is arranged on the outer surface of the RC shear wall, and the longitudinal bars of the RC floor slab are obliquely overlapped with the lapping reinforcing bar layer. However, the technical solution of arranging the overlap reinforcing steel layer still has the following disadvantages: the RC floor comprises an upper rubber band and a lower rubber band, which respectively comprise two layers of mutually orthogonal steel bars, the lapped steel bar layer is correspondingly connected with the upper rubber bar and the lower rubber bar of the RC floor, therefore, the lapped steel bar layer also comprises an upper layer of steel bars and a lower layer of steel bars, and the upper layer of steel bars and the lower layer of steel bars respectively comprise two layers of mutually orthogonal steel bars, so when the upper rubber bar and the lower rubber bar of the RC floor are connected with the lapped steel bar layer, the upper rubber bar is provided with 4 layers of steel bars, and the lower rubber bar is also provided with 4 layers of steel bars, the arrangement of the steel bars at the connecting nodes is very dense, the construction difficulty is large, and the engineering quality is difficult to ensure; secondly, after the RC floor reinforcing steel bars are lapped, the RC floor reinforcing steel bars still need to extend into the RC shear wall concrete for anchoring, and the reinforcing steel bars of the RC floor and the reinforcing steel bars inside the shear wall are also in an oblique shape, so that the RC floor reinforcing steel bars and the reinforcing steel bars are difficult to arrange, and the construction difficulty of the reinforcing steel bars in a node area is further increased; and thirdly, the connecting node area and the internal reinforcing steel bars of the shear wall in the connecting node area are dense, and the concrete pouring quality of the node area is seriously influenced.
Disclosure of Invention
Therefore, it is necessary to provide a new connection node for a reinforced concrete floor slab and a reinforced concrete shear wall, aiming at the problem that the connection is difficult when the reinforced concrete floor slab and the reinforced concrete shear wall are obliquely crossed in the prior art.
The invention discloses a connection node of a reinforced concrete floor slab and a reinforced concrete shear wall, wherein the reinforced concrete floor slab comprises an upper rubber band and a lower rubber band, the reinforced concrete shear wall comprises a concrete wall body, the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall also comprises an anchoring steel panel, the anchoring steel panel is fixedly connected with the concrete wall body, a first horizontal connecting plate and a second horizontal connecting plate are fixedly arranged on the anchoring steel panel, a distance exists between the first horizontal connecting plate and the second horizontal connecting plate in the vertical direction, horizontal shear structures are respectively arranged on the first horizontal connecting plate and the second horizontal connecting plate, the upper rubber band is lapped on the first horizontal connecting plate, the lower rubber band is lapped on the second horizontal connecting plate, the first horizontal connecting plate and the second horizontal connecting plate are connected through a connecting rod, and the first horizontal connecting plate and the second horizontal connecting plate are lapped on the upper rubber band, And the second horizontal connecting plate is fixedly poured with the upper rubber band and the lower rubber band through ultrahigh-performance concrete.
In one embodiment, the outer surface of the anchoring steel panel is parallel to the outer surface of the concrete wall.
In one embodiment, the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall further comprises anchoring steel bars, the anchoring steel bars are arranged on the other side of the anchoring steel panels opposite to the first horizontal connecting plate and the second horizontal connecting plate, and the anchoring steel bars are inserted into the concrete wall body to be fixed.
In one embodiment, when the diameter of the longitudinal bar of the reinforced concrete floor slab is d, the first horizontal connecting plate and the second horizontal connecting plate extend out of the reinforced concrete shear wall by a distance of 10d-15 d.
In one embodiment, the horizontal shear structures are provided on the upper and lower surfaces of the first horizontal connecting plate and the upper surface of the second horizontal connecting plate.
In one embodiment, the horizontal shear structure is a rebar rib or a stud.
In one embodiment, the reinforcing ribs are parallel to the intersection lines of the first horizontal connecting plate, the second horizontal connecting plate and the anchoring steel panel.
In one embodiment, the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall further comprises a plurality of vertical shear structures, and the vertical shear structures are arranged on the anchoring steel panels.
In one embodiment, the vertical shear structure is a reinforcing rib, the reinforcing rib is located below the second horizontal connecting plate, and the reinforcing rib is fixedly connected with the anchoring steel panel and the second horizontal connecting plate at the same time.
In one embodiment, the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall further comprises a tie bar, the tie bar comprises a horizontal section and an anchoring section, the anchoring section is connected to two ends of the horizontal section, each two longitudinal bars in the upper rubber bar form a group, the horizontal section of the tie bar is arranged on the group of longitudinal bars, the anchoring section is arranged on two sides of the group of longitudinal bars, an opening is formed in the first horizontal connecting plate corresponding to the anchoring section, and the anchoring section can be inserted into the opening.
Advantageous effects
According to the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall, the anchoring steel panel is arranged in the reinforced concrete wall, and the first horizontal connecting plate and the second horizontal connecting plate are arranged on the anchoring steel panel, so that the complicated and complicated arrangement of reinforcing steel bars of the connection node in the prior art is avoided, and the construction difficulty is reduced. According to the connecting node, the second horizontal connecting plate is used as a pouring template, the upper rubber band and the lower rubber band of the reinforced concrete floor slab are directly erected on the first horizontal connecting plate and the second horizontal connecting plate, and the horizontal shear structure is arranged, and the components are fixed together by means of ultra-high performance concrete pouring, so that loads in the horizontal direction of the floor slab can be smoothly transmitted to the reinforced concrete shear wall, the floor slab steel bars and the shear wall can be reliably connected in any direction, the complicated and complicated steel bar arrangement of the connecting node in the prior art is greatly simplified, the difficulty in construction is remarkably reduced, the cost is effectively saved, and the connecting node of the reinforced concrete floor slab and the reinforced concrete shear wall has good stress performance and comprehensive economic benefits.
Drawings
Fig. 1 is a schematic view of a connection node of a reinforced concrete floor slab and a reinforced concrete shear wall according to an embodiment of the present invention;
FIG. 2 is a schematic view of a connection node of a reinforced concrete floor slab and a reinforced concrete shear wall according to another embodiment of the present invention;
fig. 3 is a schematic view of a horizontal shear structure of a connection node of a reinforced concrete floor slab and a reinforced concrete shear wall according to another embodiment of the present invention;
FIG. 4 is a schematic view of a reinforced concrete floor slab and reinforced concrete shear wall connection node according to yet another embodiment of the present invention;
wherein, 1 is the rubber band, 2 is the lower rubber band, 3 is concrete wall, 4 is the anchor steel decking, 51 is first horizontal connecting plate, 52 is the second horizontal connecting plate, 53 is the anchor reinforcing bar, 54 is the level structure of shearing, 55 is vertical structure of shearing, 56 is the lacing wire.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Fig. 1 is a schematic diagram of a connection node of a reinforced concrete floor slab and a reinforced concrete shear wall, wherein the reinforced concrete floor slab comprises an upper rubber band 1 and a lower rubber band 2, and the reinforced concrete shear wall comprises a concrete wall body 3. As can be seen from fig. 1, in this embodiment, the outer surface of the concrete wall 3 is a curved surface, so the upper rubber band 1 and the lower rubber band 2 cannot be directly and orthogonally anchored in the concrete wall 3. Therefore, in order to realize the connection between the upper rubber band 1 and the lower rubber band 2 and the concrete wall 3, the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall further comprises an anchoring steel panel 4, the anchoring steel panel 4 is fixedly connected with the concrete wall 3, the anchoring steel panel 4 is fixedly provided with a first horizontal connecting plate 51 and a second horizontal connecting plate 52, the first horizontal connecting plate 51 is vertically spaced from the second horizontal connecting plate 52, the first horizontal connecting plate 51 and the second horizontal connecting plate 52 are both provided with a horizontal shear structure 54, the upper rubber band 1 is erected on the first horizontal connecting plate 51, the lower rubber band 2 is erected on the second horizontal connecting plate 52, the first horizontal connecting plate 51 and the second horizontal connecting plate 52 are fixed with the upper rubber band 1 and the lower rubber band 2 of the floor slab through Ultra High Performance Concrete (UHPC) pouring.
According to the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall, the anchoring steel panel 4 is arranged in the concrete wall body 3, and the first horizontal connecting plate 51 and the second horizontal connecting plate 52 are arranged on the anchoring steel panel 4, so that the complicated reinforcement arrangement of the connection node in the prior art is avoided, and the construction difficulty is reduced. By arranging the horizontal shear structures 54 on the first horizontal connecting plate 51 and the second horizontal connecting plate 52 and directly erecting the upper reinforcing bars 1 and the lower reinforcing bars 2 of the RC floor slab on the first horizontal connecting plate 51 and the second horizontal connecting plate 52, the connecting node can use the second horizontal connecting plate 52 as a pouring template and use ultra-high performance concrete (UHPC) to pour and fix the components together, so that the load of the RC floor slab in the horizontal direction can be smoothly transmitted to the anchoring steel panel 4 through the ultra-high performance concrete (UHPC) and the horizontal shear structures 54 and then transmitted to the RC shear wall, and the reliable connection of the RC floor slab and the RC shear wall in any direction is realized. In contrast, if the horizontal shear structures 54 are not provided, the upper rubber band 1 and the lower rubber band 2 of the RC floor need to be connected by a fixing means such as welding when being obliquely crossed with the first horizontal connecting plate 51 and the second horizontal connecting plate 52. Because the two layers of longitudinal ribs of the upper rubber rib or the two layers of longitudinal ribs of the lower rubber rib of the RC floor slab are not at the same height, the two layers of longitudinal ribs of the upper rubber rib or the two layers of longitudinal ribs of the lower rubber rib of the RC floor slab are fixedly connected with the first horizontal connecting plate 51 or the second horizontal connecting plate 52 very difficultly, and the reliability is not good. In addition to the advantages, the UHPC is used in the connection node, so that the lap joint length between the steel bars in the RC floor slab and the first horizontal connecting plate 51 and the second horizontal connecting plate 52 can be reduced on the premise of ensuring the cohesiveness of the concrete and the steel bars at the connection node, the structure of the connection node is greatly simplified, and the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall has good stress performance and comprehensive economic benefit.
In order to realize the fixed connection of the anchoring steel panels 4 and the concrete wall 3, in some embodiments, the anchoring steel panels 4 and the concrete wall 3 are connected through concrete pouring. In some embodiments, as shown in fig. 1, the anchoring steel panels 4 are parallel to the outer surface of the concrete wall 3 of the RC shear wall, so that the horizontal shear force transmitted from the RC floor slab through the connection nodes can be more uniformly dispersed on the RC shear wall, thereby ensuring the shear resistance of the RC shear wall. Further, the outer surface of the anchoring steel panel 4 should coincide with the outer surface of the concrete wall 3.
Preferably, as shown in fig. 2, the connection node of the present invention further includes an anchoring bar 53, the anchoring bar 53 is disposed on the other side of the anchoring steel panel 4 opposite to the first horizontal connection plate 51 and the second horizontal connection plate 52, and the anchoring bar 53 is inserted into the concrete wall 3 to be fixed. It is understood that the direction of the anchoring bars 53 is not limited in the present invention, but it is preferable that the anchoring bars 53 are arranged in a horizontal direction, so that the horizontal shearing force transmitted from the RC floor is effectively and uniformly transmitted to the concrete wall 3 after being transmitted to the anchoring steel panels 4. In some embodiments as shown in fig. 2, when the anchoring steel panel 4 is parallel to the outer surface of the RC shear wall, the anchoring steel bar 53 is located in the normal direction of the outer surface of the shear wall, so that the RC shear wall can better bear the horizontal load transferred by the RC floor slab.
It should be understood that the fixing manner of the first and second horizontal connecting plates 51 and 52 on the anchoring steel panel 4 is not limited in the present invention, and in some embodiments, the first and second horizontal connecting plates 51 and 52 are directly welded on the anchoring steel panel 4 to form a fixed connection. It should be noted that the diameter of the longitudinal rib of the RC floor is d, and the distance that the first horizontal connecting plate 51 and the second horizontal connecting plate 52 extend out of the wall surface of the RC shear wall is preferably 10d-15 d.
Specifically, in the partial embodiment shown in fig. 2, the horizontal shear structures 54 are preferably disposed on both the upper and lower surfaces of the first horizontal connecting plate 51 and the upper surface of the second horizontal connecting plate 52. By arranging the horizontal shear structure 54 at the above position, when the UHPC is poured, the horizontal shear structure 54 can be sufficiently connected and fixed with the first horizontal connecting plate 51, the second horizontal connecting plate 52 and the upper rubber rib 1 and the lower rubber rib 2 of the RC floor slab, so that the load in the horizontal direction of the RC floor slab can be sufficiently transferred to the first horizontal connecting plate 51 and the second horizontal connecting plate 52 through ultra-high performance concrete (UHPC).
It can be understood that, in order to enable the first horizontal connecting plate 51 and the second horizontal connecting plate 52 to effectively resist the horizontal shear force transmitted from the RC floor, the horizontal shear structure 54 according to the present invention has various implementations. For example, in the embodiment shown in fig. 2, the horizontal shear structures 54 are reinforcing ribs disposed on the first horizontal connecting plate 51 and the second horizontal connecting plate 52, and the reinforcing ribs are parallel to the intersection lines of the first horizontal connecting plate 51, the second horizontal connecting plate 52 and the anchoring steel panel 4. Specifically, in this embodiment, the anchoring steel panels 4 are parallel to the outer surface of the RC shear wall and are curved, and the reinforcing ribs are also curved. In other embodiments, as shown in fig. 3, the horizontal shear structures 54 are pegs uniformly vertically arranged on the first horizontal connecting plate 51 and the second horizontal connecting plate 52. According to the connecting joint in the two modes, before UHPC is poured, the reinforcing steel bars of the RC floor do not need to be fixed with the first horizontal connecting plate 51 and the second horizontal connecting plate 52, the reinforcing steel bars of the RC floor are lapped on the first horizontal connecting plate 51 and the second horizontal connecting plate 52, and after UHPC is poured and fixed, the stress performance of the RC floor and the RC shear wall cannot be influenced completely, so that the construction steps are greatly simplified.
Preferably, as shown in fig. 1 and 4, the connecting node of the RC floor slab and the RC shear wall further includes a plurality of vertical shear structures 55, and the vertical shear structures 55 are disposed on the anchoring steel panels 4, so that the RC shear wall can resist vertical shear force transmitted by the RC floor slab. It will be appreciated that the vertical shear structures 55 have a variety of implementations, and in the embodiment shown in fig. 1, the vertical shear structures 55 are stiffening ribs that are located below the second horizontal connecting plate 52, and the stiffening ribs are welded to both the anchoring steel panel 4 and the second horizontal connecting plate 52. The second horizontal connecting plate 52 and the anchoring steel panel 4 are more stably connected through the arrangement of the reinforcing ribs, when the UHPC is poured, the reinforcing ribs can support the second horizontal connecting plate 52, the UHPC after pouring can be tightly connected with the second horizontal connecting plate 52, and therefore the connecting node can reliably transmit the vertical shearing force of the RC floor slab. Specifically, the reinforcing rib is a triangular rib plate extending in the vertical direction, and the right-angle sides of the triangular rib plate are respectively connected with the second horizontal connecting plate 52 and the anchoring steel panel 4. Wherein preferably, the reinforcing rib is arranged along the normal direction of the outer surface of the anchoring steel panel 4. In other embodiments, as shown in fig. 4, the vertical shear structures 55 are horizontal pegs arranged on the anchoring steel panel 4 between the first horizontal connecting plate 51 and the second horizontal connecting plate 52, and the horizontal pegs are fixed together with other components of the connection node by UHPC, and jointly resist vertical shear forces.
Specifically, in some embodiments, as shown in fig. 4, the connecting node of the RC floor slab and the RC shear wall further includes a tie bar 56, where the tie bar 56 includes a horizontal section and an anchoring section, the anchoring section is connected to two ends of the horizontal section to form a U-shaped tie bar, each two longitudinal bars in the upper skin bar 1 of the RC floor slab are in a group, the horizontal section of the tie bar 56 is disposed on the group of longitudinal bars, and the anchoring section is disposed on two sides of the group of longitudinal bars, and the first horizontal connecting plate 51 of the present invention is provided with an opening (not shown in the figure) corresponding to the anchoring section, and the anchoring section can be inserted into the opening. Through the arrangement, the longitudinal ribs can be pulled by the tie bars 56, and after UHPC is poured, the RC floor slab can be stably and reliably connected with the RC shear wall. Preferably, for convenience of construction, the anchoring section is perpendicular to the horizontal section, and the opening is located right below the anchoring section. Preferably, the diameter of the longitudinal bar of the RC floor is d, and then the length of the anchoring section of the tie bar 56 should be greater than 10d, so as to ensure that the tie bar 56 has an effect.
It is easy to understand that, besides the RC shear wall with a curved outer surface in the above embodiment, when the outer surface of the RC shear wall is a plane, but the plane is oblique to the longitudinal bars of the RC floor, the connection node of the RC floor and the RC shear wall of the present invention can still provide the anchoring steel panel 4 in the RC shear wall, and provide the first horizontal connection plate 51 and the second horizontal connection plate 52 on the anchoring steel panel 4, and the horizontal direction load can still be effectively transmitted by erecting the upper skin bar 1 and the lower skin bar 2 of the RC floor on the first horizontal connection plate 51 and the second horizontal connection plate 52 and pouring and fixing the RC floor by the UHPC.
In summary, compared with the prior art, the connection node of the reinforced concrete floor slab and the reinforced concrete shear wall does not need to be provided with the lap joint reinforcing steel bars and the common tie bars within the node range, does not need to be provided with the sleeves and the shear keys on the reinforced concrete shear wall, and effectively solves the problem that the reinforced concrete floor slab and the reinforced concrete shear wall are difficult to be simply and effectively connected when the longitudinal bar direction of the reinforced concrete floor slab is not parallel to the normal direction of the outer surface of the reinforced concrete shear wall.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A connection node of a reinforced concrete floor and a reinforced concrete shear wall, the reinforced concrete floor comprises an upper rubber band and a lower rubber band, the reinforced concrete shear wall comprises a concrete wall body, and the reinforced concrete shear wall is characterized in that the connection node of the reinforced concrete floor and the reinforced concrete shear wall also comprises an anchoring steel panel, the anchoring steel panel is fixedly connected with the concrete wall body, a first horizontal connection plate and a second horizontal connection plate are fixedly arranged on the anchoring steel panel, a distance exists between the first horizontal connection plate and the second horizontal connection plate in the vertical direction, horizontal shear structures are arranged on the first horizontal connection plate and the second horizontal connection plate, the upper rubber band is lapped on the first horizontal connection plate, the lower rubber band is lapped on the second horizontal connection plate, the first horizontal connection plate, the second horizontal connection plate and the first horizontal connection plate, And the second horizontal connecting plate is fixedly poured with the upper rubber band and the lower rubber band through ultrahigh-performance concrete.
2. A reinforced concrete floor and reinforced concrete shear wall connection node as claimed in claim 1, wherein the outer surface of the anchoring steel panels is parallel to the outer surface of the concrete wall.
3. A reinforced concrete floor and reinforced concrete shear wall connection node as claimed in claim 1, further comprising anchoring bars disposed on the other side of the anchoring steel panels with respect to the first and second horizontal connection plates, the anchoring bars being inserted into the concrete wall to be fixed.
4. A reinforced concrete floor and reinforced concrete shear wall connection node as claimed in claim 1, wherein when the diameter of the longitudinal bar of the reinforced concrete floor is d, the first horizontal connecting plate and the second horizontal connecting plate extend out of the reinforced concrete shear wall by a distance of 10d-15 d.
5. A reinforced concrete floor and reinforced concrete shear wall connection node as claimed in claim 1, wherein the horizontal shear structures are provided on upper and lower surfaces of the first horizontal connection plate and an upper surface of the second horizontal connection plate.
6. A reinforced concrete floor and reinforced concrete shear wall connection node according to claim 5, wherein the horizontal shear structure is a rebar rib or a stud.
7. A reinforced concrete floor and reinforced concrete shear wall connection node according to claim 6, wherein the reinforcing ribs are parallel to the intersections of the first and second horizontal connecting plates and the anchoring steel panels.
8. A reinforced concrete floor and reinforced concrete shear wall connection node as claimed in claim 1, further comprising a plurality of vertical shear structures disposed on the anchoring steel panels.
9. A reinforced concrete floor and reinforced concrete shear wall connection node as claimed in claim 8, wherein the vertical shear structure is a stiffener, the stiffener being located below the second horizontal connecting plate, the stiffener being fixedly connected to both the anchoring steel panel and the second horizontal connecting plate.
10. A reinforced concrete floor and reinforced concrete shear wall connection node as claimed in claim 1, further comprising a tie bar, wherein the tie bar comprises a horizontal section and an anchoring section, the anchoring section is connected to both ends of the horizontal section, a group of two longitudinal bars are included in the upper rubber bar, the horizontal section of the tie bar is disposed on the group of longitudinal bars, the anchoring section is disposed on both sides of the group of longitudinal bars, an opening is disposed on the first horizontal connecting plate corresponding to the anchoring section, and the anchoring section can be inserted into the opening.
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| CN202110968433.6A CN113737980B (en) | 2021-08-23 | 2021-08-23 | Connection node of reinforced concrete floor and reinforced concrete shear wall |
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| CN202110968433.6A CN113737980B (en) | 2021-08-23 | 2021-08-23 | Connection node of reinforced concrete floor and reinforced concrete shear wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306022A (en) * | 2022-08-16 | 2022-11-08 | 上海核工程研究设计院有限公司 | Connecting node and method for reinforced concrete floor and steel plate concrete wall |
| CN117107920A (en) * | 2023-09-26 | 2023-11-24 | 中国建筑科学研究院有限公司 | Connecting node of compartment type combined shear wall and floor slab and construction method thereof |
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| CN117107920A (en) * | 2023-09-26 | 2023-11-24 | 中国建筑科学研究院有限公司 | Connecting node of compartment type combined shear wall and floor slab and construction method thereof |
| CN117107920B (en) * | 2023-09-26 | 2024-03-26 | 中国建筑科学研究院有限公司 | Connecting node of compartment type combined shear wall and floor slab and construction method thereof |
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