CN106760050B - Connecting structure of shear wall and rear pouring concrete frame beam and through type processing method - Google Patents
Connecting structure of shear wall and rear pouring concrete frame beam and through type processing method Download PDFInfo
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- CN106760050B CN106760050B CN201611057785.1A CN201611057785A CN106760050B CN 106760050 B CN106760050 B CN 106760050B CN 201611057785 A CN201611057785 A CN 201611057785A CN 106760050 B CN106760050 B CN 106760050B
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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
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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Abstract
The invention provides a connecting structure of a shear wall and a post-cast concrete frame beam, which has direct force transmission, simple structure and strong seismic performance, and comprises a wall body, horizontal shear wall reinforcing steel bars and vertical shear wall reinforcing steel bars, wherein the connecting structure is positioned at the connecting position of the shear wall and the frame beam, the connecting structure is used for connecting the part of the shear wall which is cast firstly and the concrete frame beam which is cast later, hidden column reinforcing steel bars are arranged in the connecting structure, hidden column horizontal stirrups and hidden column vertical reinforcing steel bars are bound on the hidden column reinforcing steel bars, and a post-cast reserved hole which is intersected with the central position of the frame beam is reserved in the part of the shear wall which is cast firstly. The invention also provides a through type processing method of the connecting structure, the steel bars of the frame beam are completely anchored into the wall body of the shear wall, so that the transfer of the shear force of the beam end of the frame beam to the shear wall is more direct, the structure is simple, the internal components are few, the accurate positioning of the steel bars is facilitated, enough space is poured for the concrete in the connecting structure, and cracks are not easily generated on the surface of the connecting structure.
Description
Technical Field
The invention relates to a shear wall, in particular to a connecting structure of the shear wall and a rear pouring concrete frame beam and a through type processing method of the connecting structure.
Background
The shear wall is a wall body which mainly bears horizontal load and vertical load caused by wind load or earthquake action in a house or a structure and prevents the structure from shearing and damaging, and is generally made of reinforced concrete.
In the following types of projects, the shear wall needs to be cast prior to the floor beam:
1. when a building with a high-rise frame core tube structure is built, in order to accelerate the construction progress, the concrete core tube shear wall of a tower usually adopts a creeping formwork construction scheme, so that the construction progress of the core tube shear wall is 3-5 layers ahead of the beam slab structure of a floor.
2. When the clear water concrete structure wall of a multi-storey and high-rise building is constructed, in order to enhance the sealing performance of the template, prevent slurry leakage and ensure the integral sense of the wall body, the construction of the floor beam plate of the outside functional area is carried out after the pouring construction of the whole clear water concrete wall is required to be completed.
In the structure, the floor beam can be constructed only after the shear wall concrete reaches the preset strength, the connecting structure of the shear wall and the rear pouring concrete floor beam is a difficult point, generally, in order to avoid the difficult point, the floor beam usually adopts a steel beam, a method of pre-embedding a steel plate in the shear wall, welding the steel beam and the pre-embedded plate or connecting the steel beam and the pre-embedded plate by bolts is adopted, and thus the connecting structure between the shear wall and the floor beam is easier to process. But the cost of steel structure floor is higher.
When the floor beam adopts a reinforced concrete structure, the processing method of the connecting structure of the prior cast-first shear wall and the cast-later frame beam is as follows:
embedding a connector in the shear wall, and anchoring a steel bar connected with the inner end of the connector wall into the wall body; embedding a steel plate in the middle of a frame beam on the shear wall, and welding embedded steel bars on the inner side of the steel plate; after the shear wall concrete is poured, a connection piece and an embedded steel plate which are embedded in the wall body are exposed, the connection piece is connected with the longitudinal steel bars of the frame beam, and meanwhile, steel brackets are welded on the embedded steel plate; and when the shear wall concrete reaches the preset strength, pouring the frame beam concrete.
In the connecting structure of the shear wall and the post-cast frame beam, the frame beam transmits the shear force of the floor through the steel corbels, and transmits the bending moment born by the reinforcing steel bars through the connecting piece, so that the process of transmitting the force of the floor load to the wall body is completed.
The existing connecting structure of the shear wall and the post-cast concrete frame beam has the following defects:
1. if the steel structure frame beam is adopted, although the processing mode is simpler, the manufacturing cost is higher.
2. The reinforcing steel bars of the frame beam cannot be directly anchored into the shear wall, but are connected through the connecting piece, which is equivalent to that the longitudinal reinforcing steel bars are lengthened after the beam ends are completely cut off, and is not beneficial to the seismic resistance of the nodes;
3. the reinforcing steel bars at the beam ends of the frame beams are dense, the number of the connecting pieces is large, the distance between the connecting pieces is small, the connecting pieces are not easy to be accurately positioned during construction, when the longitudinal reinforcing steel bars of the frame beams are connected with the connecting pieces, the possibility of dislocation is high, the construction difficulty is high, and the construction quality is difficult to ensure;
4. the shear-resistant steel bracket is greatly stressed, so that the number of embedded anchor bars of an embedded steel plate is large, the anchor bars are easy to collide with the positions of structural steel bars in a wall during embedding, and the embedding of the steel plate is difficult;
5. the frame beam only transmits shearing force through the steel corbels, and the transmission of force between the two materials easily generates cracks in the using process, so that the appearance effect is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a connecting structure of a shear wall and a rear pouring concrete frame beam, which has direct force transmission, simple structure and strong seismic performance. Therefore, the invention adopts the following technical scheme:
the shear wall comprises a wall body, horizontal shear wall reinforcing steel bars and vertical shear wall reinforcing steel bars, the connecting structure is located at the connecting position of the shear wall and the frame beam, the connecting structure is connected with the shear wall portion and the frame beam which are poured firstly, hidden column reinforcing steel bars are arranged in the connecting structure, hidden column horizontal stirrups and hidden column vertical reinforcing steel bars are bound to the hidden column reinforcing steel bars, and a post-pouring hole which is intersected with the central position of the frame beam is reserved in the shear wall portion which is poured firstly by the connecting structure.
Particularly, the embedded column steel bars are not bound with the shear wall horizontal steel bars and the shear wall embedded column horizontal stirrups within the range of 1 time of the frame beam height on two sides of the post-cast hole, the horizontal steel bars installed after the embedded column steel bars are in lap joint with the shear wall horizontal steel bars at the post-cast hole, the embedded column in the wall body is further provided with a plurality of U-shaped stirrups which surround and are welded at the joint, and the surface of the post-cast hole is in a chiseled shape.
Further, the width of the post-cast cavity is 30-50 mm larger than that of the frame beam; the height of the post-cast cavity is 30-50 mm greater than that of the frame beam.
Furthermore, internal steel bars are exposed in the post-cast reserved holes.
Furthermore, the exposed internal reinforcing steel bars are one or more of vertical reinforcing steel bars of the hidden columns, horizontal reinforcing steel bars installed behind and U-shaped stirrups installed behind.
The frame beam comprises a frame beam longitudinal steel bar and a frame beam stirrup, and the frame beam longitudinal steel bar extends into the wall body and is bent and anchored at the tail end.
Concrete label is the same with wall body concrete label in connection structure core space, and the outer concrete label of connection structure core space is the concrete label of frame roof beam body, separates through the wire net at 45 degrees angles between connection structure core space and the roof beam body, the wire net separates the half that the department of breaking is the frame roof beam height apart from the shear wall limit nearest shear wall limit.
The technical problem to be solved by the invention is to provide a through type processing method of the connecting structure of the shear wall and the post-cast concrete frame beam, which comprises the following steps:
s101, binding reinforcing steel bars of the shear wall, and binding embedded column reinforcing steel bars at the positions of the embedded columns.
S102, erecting a shear wall template, and reserving a template reserved groove with the width and the height larger than those of the frame beam at the intersection position of the frame beam and the shear wall;
s103, installing a hole-opening notch device in the reserved groove of the template, wherein the hole-opening notch device comprises a bottom plate and a side plate, the bottom plate and the side plate are made of polystyrene boards, the thickness of the bottom plate and the thickness of the side plate are 50-100 mm, rib penetrating holes are formed in the bottom plate and the side plate, and the hidden column vertical steel bars penetrate through the rib penetrating holes of the bottom plate to place the hole-opening notch device in the reserved groove of the template;
s104, pouring concrete in the shear wall, removing the shear wall template or moving the template upwards integrally after the concrete reaches a preset strength, and finally completing pouring of another layer of concrete shear wall according to the steps S101-S103;
s105, knocking out the notch opening device to enable the whole post-cast reserved hole to be completely exposed, roughening the inner wall of the post-cast reserved hole and cleaning the surface of the post-cast reserved hole;
s106, erecting a frame beam template, binding reinforcing steel bars of the frame beam, and extending the longitudinal reinforcing steel bars of the frame beam into the post-cast hole of the wall body, wherein the length of the reinforcing steel bars extending into the wall body needs to meet the anchoring length of the reinforcing steel bars;
s107, concrete in the frame beam and the core area of the connecting structure is poured at the same time.
Further, in step S101, the shear wall horizontal reinforcements and the shear wall embedded columns horizontal stirrups at two sides of the embedded column reinforcements within the range of 1 time of the height of the frame beam are not bound.
Further, step S103 includes the following sub-steps:
reserving reinforcement penetrating holes in the bottom plate and the side plate of the opening notch device according to the positions of horizontal reinforcements, hidden column vertical reinforcements and hidden column stirrups in the shear wall, wherein the diameter of the reinforcement penetrating holes is 40 mm;
b, aligning a reinforcement penetrating hole of the bottom plate of the notch opening device with a vertical steel bar at a corresponding position of a hidden column in the shear wall, penetrating the vertical steel bar of the hidden column from top to bottom, and placing the vertical steel bar in a reserved groove of the template; after a bottom plate of the notch opening device is tightly propped against the reserved groove of the template, the notch opening device is fixed on the shear wall template through steel nails of the bottom plate and the side plates; filling a gap between the opening notch device and the template with a foaming agent;
c, horizontally penetrating rear-mounted horizontal steel bars in the height range of the frame beam through side plate reinforcement penetrating holes of the hole opening notch device, and lapping with horizontal steel bars of the shear wall at the corresponding position; and horizontally penetrating a rear mounting U-shaped stirrup of the hidden column in the height range of the frame beam through a side plate reinforcement penetrating hole of the opening notch device, and welding two U-shaped hoops at the intersection of the U-shaped stirrups to form a closed hoop.
Further, the width of the reserved groove of the template is 30-50 mm larger than that of the frame beam; the height of the reserved groove of the template is 30-50 mm greater than that of the frame beam.
Further, in step S106, if the wall thickness is thin and the steel bar anchoring length cannot be satisfied, the longitudinal steel bars may extend outside the wall through the wall, and may be integrated with the wall through the additional concrete device.
Further, in step S107, the concrete label in the core area of the connection structure is the same as the concrete label of the wall body, the concrete label outside the core area of the connection structure is the concrete label of the frame beam body, the core area of the connection structure is separated from the beam body by the steel wire mesh with an angle of 45 degrees, and the position of the steel wire mesh separation closest to the shear wall edge is half of the height of the frame beam from the shear wall edge.
By adopting the technical scheme, the shear wall can enable the reinforcing steel bars of the frame beam to be completely anchored into the shear wall body through the post-pouring reserved holes, so that the transmission of the shear force of the beam end of the frame beam to the shear wall is more direct, meanwhile, the frame beam and the concrete in the core area of the connecting structure are poured simultaneously, the integrity of the connecting structure of the beam end of the frame beam is correspondingly increased, and the ductility of the structure is improved. Meanwhile, the connecting structure is simple in structure, few in internal components, beneficial to accurate positioning of the reinforcing steel bars, and capable of pouring enough space for concrete in the connecting structure, and when the connecting structure is used, cracks are not prone to being generated on the surface of the connecting structure, so that the connecting structure has an ideal appearance.
Drawings
FIG. 1 is a schematic view of the present invention and a sectional view of FIG. 1-1.
Fig. 2 is a schematic diagram of positions where horizontal reinforcing bars of the shear wall and horizontal stirrups of the embedded columns of the shear wall are not bound within a range of 1 time of the height of the frame beam on both sides of the position of the frame beam when the reinforcing bars of the wall are bound in the second embodiment of the invention.
Fig. 3 is a schematic view illustrating a groove reserved at a frame beam position when a wall form is erected according to a second embodiment of the present invention.
FIG. 4 is a schematic view of the notch opening device according to the second embodiment of the present invention, including a front view, a cross-sectional view 1-1 and a cross-sectional view 2-2 of the notch opening device, and a schematic view of a rear-mounted U-shaped stirrup.
Fig. 5 is a schematic view of the device for installing the opening notch in the groove of the shear wall template according to the second embodiment of the invention.
Fig. 6 is a schematic diagram of the frame beam position leaving the post-cast cavity due to the isolation of the open-cell notch device when concrete of the shear wall is poured in the second embodiment of the invention.
Fig. 7 is a schematic diagram of a pouring process of the previous concrete shear wall completed in steps S101-S104 according to the second embodiment of the present invention.
FIG. 8 is a schematic view and a cross-sectional view 1-1 of a second embodiment of the present invention of a knockout of an open notch device with gouging of the inner wall of the notch.
Fig. 9 is a schematic view of a process of binding reinforcing steel bars of a frame beam and extending longitudinal reinforcing steel bars of the frame beam into a notch for anchoring in the second embodiment of the invention.
Fig. 10 is a schematic view of completing the casting of the frame beam and the concrete in the core area of the connection structure in the second embodiment of the present invention.
In the figure, 1: horizontal steel bars of shear wall, 2: shear wall vertical steel bar, 3: hidden column horizontal stirrup, 4: vertical reinforcing bar of dark post, 6: horizontal steel bar installed later, 7: u-shaped stirrup, 8: frame beam, 9: shear wall, 10: shear wall template, 11: template preformed groove, 12: open-cell slot device, 13: bottom plate, 14: side plate, 15: longitudinal steel bar of frame beam, 17: lacing holes, 18: post-cast hole, 30: u-shaped stirrup welding point, 50: connecting structure core region, 51: and (5) steel wire meshes.
Detailed Description
The invention is further elucidated with reference to the drawing.
The first embodiment is as follows:
as shown in fig. 1, the left side of fig. 1 is a schematic front view of the shear wall of the present invention, and the right side is a corresponding cross-sectional view. The invention provides a connecting structure of a shear wall 9 and a rear pouring frame beam 8, wherein the connecting structure is approximately positioned at the intersection position of the shear wall 9 and the rear pouring frame beam 8, the connecting structure is mainly a shear wall part, and the arrangement of the connecting structure is convenient for the pouring operation of the rear pouring frame beam 8.
Therefore, the connecting structure comprises a wall body, horizontal shear wall reinforcing steel bars 1 and vertical shear wall reinforcing steel bars 2, the shear wall 9 is provided with embedded column reinforcing steel bars at the connecting structure position (connecting position) of the shear wall and the frame beam 8, embedded column horizontal stirrups 3 and embedded column vertical reinforcing steel bars 4 are bound to the embedded column reinforcing steel bars, and a post-cast reserved hole 18 is formed in the intersecting position of the shear wall 9 and the frame beam 8;
the built-in column reinforcing steel bars are not bound with shear wall horizontal reinforcing steel bars 1 and shear wall built-in column horizontal stirrups 3 in the range of 1 time of the height of the frame beam 8 beam on two sides of the post-cast reserved hole 18, the horizontal reinforcing steel bars arranged in the post-cast manner are in lap joint with the shear wall horizontal reinforcing steel bars 1 arranged in the post-cast reserved hole 18, the built-in column in the wall is further provided with a plurality of U-shaped stirrups 7 arranged in the post-cast manner in a surrounding manner and sealing hoops welded at the joint, the surface, particularly the inner surface, of the post-cast reserved hole 18 is in a chiseled shape, and the arrangement of the chiseled shape and the stirrups is beneficial to the fact that the post-cast concrete and the cast concrete firstly have reliable cohesiveness.
Concrete label is the same with wall body concrete label in connection structure core space 50, and the outer concrete label of connection structure core space is the concrete label of frame roof beam 8 body, separates through the wire net 51 at 45 degrees angles between connection structure core space 50 and the roof beam body, the wire net separates the department of breaking and is the half of 8 high h of frame roof beam apart from the shear wall limit in shear wall limit nearest.
Example two:
the invention provides a through type processing method of a connecting structure of a shear wall and a rear pouring concrete frame beam, which specifically comprises the following steps of:
and S101, binding steel bars of the shear wall, and binding embedded column steel bars in the shear wall at the connecting position of the frame beam 8 as shown in figure 2. In the shear wall, the horizontal reinforcing steel bars in the beam height range of the frame beam 8 and the horizontal stirrups of the hidden columns of the shear wall 9 are not bound in advance within the beam height range of 1 time at the two sides of the frame beam 8;
s102, as shown in FIG. 3, erecting a template 10 of the shear wall 9, reserving a template reserved groove 11 at the intersection position of the floor elevation frame beam 8 and the shear wall 9, wherein the width and the height of the template reserved groove 11 are 30-50 mm larger than those of the frame beam 8;
s103, as shown in FIG. 5, installing the opening notch device 12 in the template groove, wherein the installing steps are as follows:
a, reserving a rib penetrating hole 17 in a bottom plate 13 and a side plate 14 of the perforated notch device 12 according to the positions of the horizontal steel bar 1 of the shear wall, the vertical steel bar 4 of the hidden column and the horizontal stirrup 3 of the hidden column, wherein the diameter of the rib penetrating hole 17 is 40 mm.
B, aligning the reinforcement penetrating hole 17 of the bottom plate 13 of the hole opening notch device 12 with the vertical steel bar 4 at the corresponding position of the hidden column in the shear wall, penetrating the vertical steel bar 4 of the hidden column from top to bottom and placing the hidden column in the reserved groove 11 of the template. The bottom plate 13 of the hole opening notch device 12 is tightly propped against the reserved groove 11 of the template and then is fixed on the shear wall template through steel nails of the bottom plate 13 and the side plates 14. And filling the gap between the opening notch device and the template by adopting a foaming agent.
And C, horizontally penetrating rear mounting horizontal steel bars in the beam height range of the frame beam 8 through the bar penetrating holes 17 of the perforated notch devices 12, and lapping the rear mounting horizontal steel bars with the horizontal steel bars of the shear wall at the corresponding position. And horizontally penetrating a rear mounting U-shaped hoop rib of the hidden column in the beam height range of the frame beam 8 through a side plate rib penetrating hole of the perforated notch device, and welding two U-shaped hoops at the intersection of the U-shaped hoop ribs to form a closed hoop. As shown in fig. 4, reference numeral 30 is a welding point of the intersecting U-shaped stirrups.
S104, as shown in fig. 6, concrete is poured into the shear wall 9.
And S105, as shown in FIG. 7, after the wall body of the current layer is poured, and after the concrete in the wall reaches the preset strength, the formwork is removed or the whole formwork is moved upwards, and the pouring of the concrete shear wall of the previous layer is completed according to the steps of S101-S104.
S106, as shown in fig. 8, the left side is a front schematic view, and the right side is a corresponding cross-sectional view. Knocking out the notch opening device 12 to completely expose the whole post-cast cavity 18, roughening the inner wall of the post-cast cavity 18 and cleaning the surface.
S107, as shown in fig. 9, the left side is a front schematic view, and the right side is a corresponding cross-sectional view. The frame beam template is erected, the reinforcing steel bars of the frame beam are bound, the longitudinal reinforcing steel bars 15 of the frame beam stretch into the reserved square holes of the wall body, and the length of the reinforcing steel bars stretching into the wall body needs to meet the anchoring length of the reinforcing steel bars. If the wall thickness is thinner, the longitudinal steel bar can pass through the wall body and extend out of the wall body when the steel bar anchoring length can not be met, and the longitudinal steel bar and the wall body are integrated through the additional concrete device. The reinforcing bar of frame roof beam can be anchored completely in the shear force wall body, avoids passing the mode of power through the piece of plugging into, makes the transmission of the beam-ends bending moment of frame roof beam to the shear force wall more direct.
S108, as shown in fig. 10, the left side is a front schematic view, and the right side is a corresponding cross-sectional view. And pouring concrete of the frame beam 8. Concrete label is the same with wall body concrete label in connection structure core area, and 50 outer concrete label of connection structure core area are the concrete label of frame roof beam 8 bodies, and the wire net through the 45 degrees angle between connection structure core area and the roof beam body separates. The concrete in frame roof beam 8 and connection structure core area is pour simultaneously, has increased frame roof beam-ends connection structure's wholeness, has improved the ductility of structure. More importantly, the steel bar connecting piece and the shear-resistant steel corbel are not adopted in the connecting structure area, the number of parts inside the connecting structure is reduced, accurate positioning of the steel bars inside the connecting structure is facilitated, a sufficient space is reserved for pouring of concrete inside the connecting structure, and the steel bar binding quality and the concrete pouring quality of the connecting structure area are effectively guaranteed.
In addition, because the connecting structure region does not need a steel plate as a force transmission part, the stress distribution is more uniform when the connecting structure region is stressed to work, and the concrete surface of the connecting structure region is not easy to crack in a use state, so that the connecting structure has ideal appearance.
It should be noted that the described embodiments of the present invention are only for illustration purpose and are not intended to limit the scope of the claims of the present invention. Modifications, improvements and equivalents of the invention that may occur to those skilled in the art are intended to be within the scope of the claims.
Claims (9)
1. The through type processing method of the connection structure of the shear wall and the post-cast concrete frame beam is characterized in that the connection structure is connected with a shear wall part which is cast firstly and a frame beam (8) which is cast later, hidden column steel bars are arranged in the connection structure, hidden column horizontal stirrups (3) and hidden column vertical steel bars (4) are bound on the hidden column steel bars, and a post-cast hole (18) which is intersected with the center position of the frame beam (8) is reserved in the shear wall part which is cast firstly; the embedded column steel bars are not bound with shear wall horizontal steel bars (1) and shear wall (9) embedded column horizontal stirrups (3) which are arranged in the beam height range of the frame beam (8) and are 1 time of the two sides of the position of the post-cast hole (18), the post-installed horizontal steel bars (6) are lapped with the shear wall horizontal steel bars (1) at the position of the post-cast hole (18), the embedded column in the wall body is also provided with a plurality of closed hoops which are surrounded by the post-installed U-shaped stirrups (7) and welded at the joint, and the surface of the post-cast hole (18) is in a scabbed shape; the through type processing method of the connecting structure of the shear wall and the rear pouring concrete frame beam comprises the following steps:
s101, binding reinforcing steel bars of the shear wall (9), and binding embedded column reinforcing steel bars at the positions of the embedded columns;
s102, erecting a shear wall template (10), and reserving a template reserved groove (11) with the width and the height larger than those of the frame beam at the intersection position of the frame beam (8) and the shear wall (9);
s103, installing a hole-opening notch device (12) in the template reserved groove (11), wherein the hole-opening notch device (12) comprises a bottom plate (13) and a side plate (14), the bottom plate (13) and the side plate (14) are made of polystyrene boards, the thickness of the bottom plate (13) and the thickness of the side plate (14) are 50-100 mm, rib penetrating holes (17) are formed in the bottom plate (13) and the side plate (14), and hidden column vertical steel bars (4) penetrate through the rib penetrating holes (17) of the bottom plate (13) to place the hole-opening notch device (12) in the template reserved groove (11);
s104, pouring concrete in the shear wall (9), removing the shear wall template (10) or moving the template upwards integrally after the concrete reaches a preset strength, and finally completing pouring of another layer of concrete shear wall according to the steps S101-S103;
s105, knocking out the notch opening device (12), completely exposing the whole post-cast cavity (18), roughening the inner wall of the post-cast cavity (18) and cleaning the surface;
s106, erecting a framework beam (8) template, binding reinforcing steel bars of the framework beam (8), extending longitudinal reinforcing steel bars (15) of the framework beam into a post-cast hole (18) of the wall body, wherein the length of the reinforcing steel bars extending into the wall body needs to meet the anchoring length of the reinforcing steel bars;
s107, concrete of the frame beam (8) and the core area (50) of the connecting structure are poured at the same time.
2. A through-type processing method of a connection structure of a shear wall and a rear pouring concrete frame beam according to claim 1, characterized in that the width of the rear pouring hole (18) is 30-50 mm larger than the width of the frame beam (8); the height of the post-cast cavity (18) is 30-50 mm greater than that of the frame beam (8).
3. A through type processing method of a connection structure of a shear wall and a rear pouring concrete frame beam according to claim 1, characterized in that internal reinforcing steel bars are exposed inside and outside the rear pouring hole (18), and the exposed internal reinforcing steel bars are one or more of vertical reinforcing steel bars (4) of a hidden column, rear-mounted horizontal reinforcing steel bars (6) and rear-mounted U-shaped stirrups (7).
4. A through processing method of a connection structure of a shear wall and a rear pouring concrete frame beam according to claim 1, characterized in that the frame beam (8) comprises a frame beam longitudinal reinforcement (15) and a frame beam stirrup, and the frame beam longitudinal reinforcement (15) extends into the wall body and is anchored by bending at the tail end.
5. A through processing method of a connecting structure of a shear wall and a post-cast concrete frame beam according to claim 1, characterized in that the concrete label in the core area (50) of the connecting structure is the same as the concrete label of the wall body, the concrete label outside the core area of the connecting structure is the concrete label of the body of the frame beam (8), the core area (50) of the connecting structure is separated from the beam body by a steel wire mesh (51) with an angle of 45 degrees, and the distance from the shear wall edge to the steel wire mesh partition closest to the shear wall edge is half of the height h of the frame beam (8).
6. A through processing method of a connecting structure of a shear wall and a post-cast concrete frame beam according to claim 1, wherein in the step S101, the shear wall horizontal reinforcing steel bars (1) and the shear wall hidden column horizontal stirrups (3) of which the two sides of the hidden column reinforcing steel bars are within 1 time of the height of the frame beam (8) are not bound.
7. A through-type processing method for a connection structure of a shear wall and a rear pouring concrete frame beam according to claim 1, wherein the step S103 comprises the following substeps:
reserving reinforcement penetrating holes (17) on a bottom plate (13) and a side plate (14) of the perforated notch device (12) according to the positions of a horizontal reinforcement (1) of the shear wall, a vertical reinforcement (4) of the hidden column and a horizontal stirrup (3) of the hidden column, wherein the diameter of each reinforcement penetrating hole (17) is 40 mm;
b, aligning a reinforcement penetrating hole (17) of a bottom plate (13) of the hole opening notch device (12) with the hidden column vertical steel bar (4) in the shear wall, penetrating the hidden column vertical steel bar (4) from top to bottom and placing the hidden column vertical steel bar in the reserved groove (11) of the template; a bottom plate (13) of the hole opening notch device (12) is tightly propped against the reserved groove (11) of the template and then is fixed on the shear wall template (10) through steel nails of the bottom plate (13) and the side plates (14); filling a gap between the opening notch device (12) and the shear wall template (10) with a foaming agent;
c, horizontally penetrating horizontal steel bars (6) which are installed at the back of the frame beam (8) within the beam height range through bar penetrating holes (17) of side plates (14) of the perforated notch device (12), and overlapping the horizontal steel bars (1) of the shear wall at corresponding positions; and horizontally penetrating the U-shaped stirrups (7) installed behind the hidden columns in the beam height range of the frame beam (8) through reinforcement penetrating holes (17) of side plates (14) of the perforated notch device (12), and welding the two U-shaped stirrups into a closed hoop at the intersection of the corresponding U-shaped stirrups (7) installed behind.
8. A through-type processing method of a connection structure of a shear wall and a rear pouring concrete frame beam according to claim 1, characterized in that the width of the template reserved groove (11) is 30-50 mm larger than that of the frame beam (8); the height of the template reserved groove (11) is 30-50 mm greater than that of the frame beam (8); in the step S106, if the wall thickness of the shear wall (9) is thin and the steel bar anchoring length cannot be met, the longitudinal steel bars (15) of the frame beam can penetrate through the wall body to extend out of the wall body and form a whole with the wall body through the additional concrete device.
9. A through processing method of a connection structure of a shear wall and a post-cast concrete frame beam according to claim 1, characterized in that in step S107, the concrete label in the core area (50) of the connection structure is the same as the concrete label of the shear wall (9), the concrete label outside the core area (50) of the connection structure is the concrete label of the frame beam (8), the core area (50) of the connection structure is separated from the frame beam (8) by a steel wire mesh (51) with a 45-degree angle, and the distance from the wall edge of the steel wire mesh (51) closest to the shear wall (9) to the wall edge of the shear wall (9) is half of the height h of the frame beam (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611057785.1A CN106760050B (en) | 2016-11-24 | 2016-11-24 | Connecting structure of shear wall and rear pouring concrete frame beam and through type processing method |
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| CN107574925B (en) * | 2017-08-21 | 2022-12-23 | 中铁第四勘察设计院集团有限公司 | Connecting structure for main body and large-span auxiliary bottom plate parallel beam of subway station |
| CN108518084A (en) * | 2018-04-28 | 2018-09-11 | 上海建工二建集团有限公司 | The additional structure and method that shear wall is removed in frame-shear-wall structure |
| CN111502077B (en) * | 2020-04-03 | 2021-06-11 | 中国建筑第八工程局有限公司 | Construction method for joint of steel column and shear wall under uneven settlement |
| CN113107098A (en) * | 2021-03-12 | 2021-07-13 | 宏正工程设计集团股份有限公司 | Connecting structure of shear wall and rear pouring concrete frame beam |
| CN114000596B (en) * | 2021-11-03 | 2022-12-20 | 江苏城归设计有限公司 | Concrete beam end and curved surface shear wall construction joint processing device and method |
| CN114961260A (en) * | 2022-06-30 | 2022-08-30 | 中冶建工集团有限公司 | Construction method for positioning stressed steel beam on steel frame bearing platform |
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