CN220336232U - Fixing structure for prefabricated building component and prefabricated building component - Google Patents

Abstract

The utility model discloses a fixing structure for prefabricated building components and the prefabricated building components. The fixing structure comprises a prefabricated part and a plurality of connecting parts arranged on the prefabricated part. The prefabricated part is provided with a pouring space for pouring concrete; the connecting component is used for connecting the reinforcing steel bar component, and the connecting component is used for fixedly arranging the reinforcing steel bar component in the pouring space of the prefabricated component. Unlike the prefabricated parts of the conventional reinforced concrete structure, the present technique fixes the reinforcing bar parts to one prefabricated member having a casting space through a plurality of connection parts. And the pre-buried combined structure of the non-reinforced concrete, so that the weight of the prefabricated component is reduced by reducing the concrete consumption of the prefabricated part in the early stage in the process of prefabricating production, transportation and installation in the early stage, and the weight of the prefabricated building component is effectively and specifically reduced.

Description

Fixing structure for prefabricated building component and prefabricated building component

Technical Field

The utility model relates to the technical field of fittings of building components, in particular to a fixing structure for prefabricated building components and the prefabricated building components.

Background

The assembled building is formed by transferring a large amount of field operation work in a traditional building mode to a factory, processing building components, accessories and the like in the factory, transporting to a building construction site, and assembling and installing on site through a reliable connection mode. The assembled building components mainly comprise laminated plates, laminated beams, laminated plate type shear walls and the like.

The assembled building components (such as laminated slab, laminated beam and laminated plate type shear wall) adopt a building structure formed by combining prefabricated parts and post-forming parts. The prefabricated part is a prefabricated building component of a reinforced concrete structure, and the prefabricated building component is provided with a cavity for pouring concrete; the post-forming portion is formed by casting concrete material into the cavity of the prefabricated portion at the construction site.

The applicant researches show that the self-weight of the prefabricated building component is large due to the self-reinforced concrete structure of the prefabricated building component, the installation and transportation are affected, and the hoisting technical requirement is high.

Disclosure of Invention

In order to overcome the technical defects, the utility model provides a fixing structure for prefabricated building components and the prefabricated building components.

In order to solve the problems, the utility model is realized according to the following technical scheme:

in a first aspect, the present utility model provides a fixing structure for prefabricated building elements, comprising:

a prefabricated member having a casting space for casting concrete;

the connecting parts are arranged on the prefabricated parts and used for connecting the reinforcing steel bar parts, and the connecting parts are used for fixedly arranging the reinforcing steel bar parts in pouring spaces of the prefabricated parts.

With reference to the first aspect, the present utility model further provides a 1 st preferred embodiment of the first aspect, specifically, the connecting component includes:

a connector configured to be receivable in a preformed hole of the preformed member, the preformed hole being in communication with the casting space; the connector has a hook portion and a threaded shank portion configured to connect with a lock nut of the exterior sidewall of the preform;

the hook parts of the connecting pieces are used for hooking the steel bars of the steel bar parts, and the steel bar parts are fixed in the pouring space of the prefabricated part through the connecting pieces.

Further preferably, the connection member includes:

the base plate is arranged between the lock nut and the outer side wall of the prefabricated part, and the threaded rod part of the connecting piece penetrates through the base plate and is exposed out of the surface of the base plate.

With reference to the first aspect, the present utility model further provides a 2 nd preferred embodiment of the first aspect, specifically, the connecting component includes:

the lower end of the pressing piece is provided with a grooving structure capable of containing the steel bars of the steel bar parts; the pressing piece is provided with a strip-shaped hole which penetrates through the pressing piece up and down;

the threaded rod part of the bolt is configured to be received in a prefabricated hole of the prefabricated part, the prefabricated hole is communicated with the pouring space, the threaded rod part of the bolt penetrates through the prefabricated part and is exposed on the surface of the inner side wall of the prefabricated part, and the threaded rod part of the bolt is matched with the strip-shaped hole of the pressing piece;

the pressing piece penetrates through the hollowed-out part of the steel bar component, and the grooving structure of the pressing piece is sleeved with steel bars of the steel bar component adjacent to the inner side wall of the prefabricated component; the pressing piece is sleeved on the threaded rod portion of the bolt through the strip-shaped hole of the pressing piece, the pressing piece is locked by the nut of the bolt, and then the steel bar part is fixed in the pouring space of the prefabricated part through the pressing pieces.

Further preferably, the pressing member includes:

the groove structure comprises a first side plate, wherein protruding parts are respectively arranged at two side ends of the first side plate, and a hollow part is formed between the two protruding parts of the first side plate to form the groove structure;

the second side plates are arranged at intervals corresponding to the second side plates, protruding parts are respectively arranged at the two side ends of the second side plates, and two protruding parts of the second side plates are hollowed out to form the grooving structure;

the two connecting plates are connected with the first side plate on one side wall, and the second side plate on the other opposite side wall;

the two connecting plates are arranged at intervals, and the strip-shaped holes are formed through the side wall of the first side plate, the side wall of the second side plate and the side walls of the two connecting plates.

With reference to the first aspect, the present utility model further provides a 3 rd preferred embodiment of the first aspect, and specifically, the fixing structure further includes:

a plurality of space holders for reinforcing bars connected to the reinforcing bar parts, the space holders being exposed on outer sidewalls of the reinforcing bar parts;

wherein the spacing holder is for spacing the outer side wall of the reinforcing bar part from the corresponding side wall of the prefabricated part, and the spacing holder is for holding the outer side wall of the reinforcing bar part from the corresponding side wall of the prefabricated part by the same spacing.

With reference to the first aspect, the present utility model further provides a 4 th preferred embodiment of the first aspect, specifically, the space holder includes an integrally formed arc-shaped protrusion portion and a connection portion, and the connection portion is connected with the reinforcing steel bar member; the outermost end of the arc-shaped protruding portion abuts against the side wall of the prefabricated component.

With reference to the first aspect, the present utility model further provides a 5 th preferred embodiment of the first aspect, specifically, the thickness of the prefabricated parts is 10-15 mm.

With reference to the first aspect, the present utility model further provides a 6 th preferred embodiment of the first aspect, specifically, the prefabricated member is a prefabricated panel, a prefabricated column or a prefabricated beam; or the prefabricated component is a prefabricated wall body formed by two prefabricated plates at opposite intervals.

In a second aspect, the present utility model also provides a prefabricated building element comprising a fixing structure for a prefabricated building element according to the first aspect, further comprising:

the steel bar component is arranged in the pouring space of the prefabricated component;

and the cast-in-situ concrete layer is formed in the casting space of the prefabricated part, and the steel bar component is arranged in the cast-in-situ concrete layer.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a fixing structure for prefabricated building components, which comprises prefabricated components and a plurality of connecting components arranged on the prefabricated components. The prefabricated part is provided with a pouring space for pouring concrete; the connecting component is used for connecting the reinforcing steel bar component, and the connecting component is used for fixedly arranging the reinforcing steel bar component in the pouring space of the prefabricated component.

The applicant indicates that the prefabricated parts of the conventional prefabricated building elements are formed by wrapping the reinforcing bar members with concrete and fixing the reinforcing bar members to the concrete structure in a pre-buried manner. Therefore, in order to ensure firm combination of the reinforcing steel bar component and the concrete, the thickness of the concrete needs to cover the part of the reinforcing steel bar component, so that the thickness and the consumption of the concrete are large, and the prefabricated part of the traditional fabricated building component is large in weight.

Unlike the prefabricated parts of the conventional reinforced concrete structure, the present technique fixes the reinforcing bar parts to one prefabricated member having a casting space through a plurality of connection parts. And the pre-buried combined structure of the non-reinforced concrete, so that the weight of the prefabricated component is reduced by reducing the concrete consumption of the prefabricated part in the early stage in the process of prefabricating production, transportation and installation in the early stage, and the weight of the prefabricated building component is effectively and specifically reduced. The thickness of the prefabricated part can be thinner because the part of the reinforcing steel bar part is not required to be covered, so that the weight of the prefabricated part is effectively and remarkably reduced.

The utility model also provides a prefabricated building component, which comprises a fixing structure for the prefabricated building component, a reinforcing steel bar component and a cast-in-situ concrete layer formed in the casting space of the prefabricated component, wherein the reinforcing steel bar component is arranged in the casting space of the prefabricated component, and the reinforcing steel bar component is arranged in the cast-in-situ concrete layer. Unlike the prefabricated parts of the conventional reinforced concrete structure, the present technique fixes the reinforcing bar parts to one prefabricated member having a casting space through a plurality of connection parts. And the pre-buried combined structure of the non-reinforced concrete, so that the weight of the prefabricated component is reduced by reducing the concrete consumption of the prefabricated part in the early stage in the process of prefabricating production, transportation and installation in the early stage, and the weight of the prefabricated building component is effectively and specifically reduced. The thickness of the prefabricated part can be thinner because the part of the reinforcing steel bar part is not required to be covered, so that the weight of the prefabricated part is effectively and remarkably reduced. The cast-in-situ concrete layer is formed by pouring concrete after the prefabricated part is constructed and installed on site, the weight of the prefabricated part is not increased, the prefabricated part is more convenient to transport, hoist and mount and construct, quick installation can be realized, and safety is ensured.

On the other hand, the casting space formed by the prefabricated components has good integrity of the prefabricated building components formed by casting concrete on site in the casting space, namely, the cast-in-situ concrete layer and the reinforced bar component are combined to form a complete reinforced concrete building component, the structure and the mechanical property of the reinforced concrete building component are consistent with those of the integral cast-in-situ reinforced concrete structure, and the problems of slightly poor integrity, weakened mechanical property and the like of the traditional prefabricated building component are avoided.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic view of the structure of the prefabricated building element of the present utility model as a prefabricated column;

FIG. 2 is a schematic partial cut-away view of a prefabricated building element according to the present utility model as a prefabricated column;

FIG. 3 is a schematic front view of the prefabricated building element of the present utility model as a prefabricated column;

FIG. 4 is a schematic view of the structure of the pressing member of the present utility model;

FIG. 5 is a schematic view of a prefabricated column provided with space holders according to the present utility model;

FIG. 6 is a schematic view of a cut-away section of a preform column provided with a spacer according to the present utility model;

FIG. 7 is a schematic view of the structure of the prefabricated building element of the present utility model as a superimposed sheet;

FIG. 8 is a schematic view of the structure of the prefabricated building element of the present utility model as a laminated slab;

FIG. 9 is a schematic view of the construction of the prefabricated construction element of the present utility model as a composite beam;

FIG. 10 is a schematic cross-sectional view of a prefabricated structural member of the present utility model as a stacked plate shear wall;

FIG. 11 is a schematic illustration of the construction of the prefabricated structural element of the present utility model as a stacked plate shear wall;

FIG. 12 is an enlarged schematic view of section A of the prefabricated structural element of the present utility model being a stacked plate shear wall;

in the figure:

10-prefabricated parts and 11-pouring spaces;

20-steel bar parts, 21-steel bar trusses and 22-steel bar cages;

30-a cast-in-situ concrete layer;

40-connecting parts, 41-connecting parts, 411-hook parts, 42-pressing parts, 421-grooving structures, 422-strip-shaped holes and 43-backing plates; 50-pitch holders, 51-arcuate projections, 52-connections.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1

As shown in fig. 1 to 11, a preferred structure of a fixing structure for prefabricated building elements according to the present utility model.

As shown in fig. 1 and 2, the fixing structure includes a prefabricated member 10 and a plurality of connection parts 40 provided on the prefabricated member 10. Wherein the prefabricated parts have a casting space 11 for casting concrete; the connecting parts are used for connecting the reinforcing steel bar parts 20, and the connecting parts are used for fixedly arranging the reinforcing steel bar parts in the pouring space of the prefabricated part.

In one implementation, the prefabricated component is a prefabricated panel, a prefabricated column or a prefabricated beam; or the prefabricated component is a prefabricated wall body formed by two prefabricated plates at opposite intervals.

It will be appreciated that the fixing structure of the technique of the present utility model is applied to a laminated slab when the prefabricated member is a prefabricated panel. When the prefabricated component is a prefabricated column, the fixing structure of the technology is applied to the superposed column. When the prefabricated component is a precast beam, the fixing structure of the technology is applied to the superposed beam. When the prefabricated component is a prefabricated wall body formed by two prefabricated plates at opposite intervals, the fixing structure of the technology is applied to a superposed plate type shear wall, a superposed plate type wallboard and the like.

In one implementation, the casting space of the prefabricated components is used for casting concrete in situ to form a cast-in-place concrete layer 30, and the cast-in-place concrete layer covers the reinforcing steel bar components to form a reinforced concrete structure, and finally, a building structure is formed.

It should be noted that in the art, the prefabricated member and the cast-in-place concrete layer are formed separately.

It will be appreciated that the prefabricated components are prefabricated concrete elements produced and formed in the prefabricated field, and can be directly transported to the construction site for placement or installation after being assembled by the reinforcing steel bar components and the connecting components. And transporting the prefabricated part provided with the reinforcing steel bar part to a construction site for installation. And pouring concrete materials in situ in pouring spaces of the prefabricated parts, burying the reinforced parts by the concrete materials, and finally forming a cast-in-situ concrete layer after curing to form a composite reinforced concrete building structure of the prefabricated parts, namely the reinforcement cage and the cast-in-situ concrete layer.

In a preferred implementation, the fixing structure of the utility model is adopted, the reinforcing steel bar component and the prefabricated component are connected and installed through the connecting component, and a non-embedded combined structure is adopted, so that the thickness of the prefabricated component can be 10-15 mm. For example, the prefabricated plate, the prefabricated beam and the like under the same area, the prefabricated plate thickness of the traditional laminated plate is far larger than that of the utility model, and the weight is several times that of the utility model.

The utility model can realize the prefabricated part with thinner thickness and provides great convenience for storing, transporting and installing the prefabricated part.

In one implementation, the rebar component may be a rebar truss, rebar cage, or the like.

Specifically, the reinforcement cage can be a reinforcement cage in a column body and a beam body. The steel reinforcement cage of the column body consists of longitudinal bars, stirrups and tie bars, and the steel reinforcement cage in the beam body consists of top bars, waist bars, bottom bars, stirrups and tie bars. The section of the steel bar truss is of a triangular structure, and the steel bar truss comprises an upper chord steel bar, two lower chord steel bars and two continuous saw-tooth web bars. Wherein, two lower chord steel bars are arranged at intervals, and an upper chord steel bar is positioned above the middle parts of the two lower chord steel bars, and the upper chord steel bars and the lower chord steel bars are welded and fixed through web bars so as to form a long strip-shaped hollowed-out three-dimensional structure.

In one implementation, as shown in fig. 2, the connection part 40 includes:

a connector 41 configured to be receivable in a preformed hole of the preformed member, the preformed hole being in communication with the casting space; the connector 41 has a hook 411 and a threaded shank configured to connect with a lock nut of the prefabricated part outer side wall;

the hook parts of the connecting pieces are used for hooking the steel bars of the steel bar parts, and the steel bar parts are fixed in the pouring space of the prefabricated part through the connecting pieces.

In the utility model, the connecting piece is made of a high-strength metal material. It is to be understood that the shape of the connecting piece is like a hook, the hook is used for hooking the steel bars of the steel bar cage/steel bar truss, the threaded rod part of the connecting piece passes through the prefabricating hole of the prefabricating member, the steel bars of the steel bar cage/steel bar truss of the connecting piece are locked in the pouring cavity of the prefabricating member through screw nuts, and the steel bar cage/steel bar truss of the connecting piece can be fixed on the side wall surface of the prefabricating member.

In a preferred implementation, the connecting member includes a backing plate 43 disposed between the lock nut and the outer sidewall of the preform, and the threaded shank of the connecting member extends through the backing plate and is exposed at the surface of the backing plate. Through the setting of backing plate, receive the atress by the backing plate, reduce stress concentration in prefabricated hole surrounding of prefabricated component. Because the thickness of the prefabricated part is thinner, the prefabricated part around the prefabricated hole is easy to damage when the nut is locked.

During specific installation, in order to effectively and reliably fix the steel reinforcement cage/steel reinforcement truss, the steel reinforcement cage/steel reinforcement truss is fixed by using a plurality of connecting pieces respectively, and the steel reinforcement cage/steel reinforcement truss is prevented from being not centered, shifted, misplaced and the like. Specifically, a plurality of connecting pieces are arranged on a plurality of side walls of the prefabricated part so as to ensure that the reinforcement cage/reinforcement truss is positioned at the corresponding position of the pouring space of the prefabricated part.

In another aspect, the present utility model provides a prefabricated building element comprising a fixing structure for a prefabricated building element as described above, further comprising a reinforcing bar member and a cast-in-place concrete layer formed in a casting space of the prefabricated building element. The steel bar part is arranged in the pouring space of the prefabricated part; the steel bar component is arranged in the cast-in-situ concrete layer.

Unlike the prefabricated parts of the conventional reinforced concrete structure, the present technique fixes the reinforcing bar parts to one prefabricated member having a casting space through a plurality of connection parts. And the pre-buried combined structure of the non-reinforced concrete, so that the weight of the prefabricated component is reduced by reducing the concrete consumption of the prefabricated part in the early stage in the process of prefabricating production, transportation and installation in the early stage, and the weight of the prefabricated building component is effectively and specifically reduced. The thickness of the prefabricated part can be thinner because the part of the reinforcing steel bar part is not required to be covered, so that the weight of the prefabricated part is effectively and remarkably reduced. The cast-in-situ concrete layer is formed by pouring concrete after the prefabricated part is constructed and installed on site, the weight of the prefabricated part is not increased, the prefabricated part is more convenient to transport, hoist and mount and construct, quick installation can be realized, and safety is ensured.

On the other hand, the casting space formed by the prefabricated components has good integrity of the prefabricated building components formed by casting concrete on site in the casting space, namely, the cast-in-situ concrete layer and the reinforced bar component are combined to form a complete reinforced concrete building component, the structure and the mechanical property of the reinforced concrete building component are consistent with those of the integral cast-in-situ reinforced concrete structure, and the problems of slightly poor integrity, weakened mechanical property and the like of the traditional prefabricated building component are avoided.

Example two

A fixing structure for a prefabricated building element, a building prefabricated element according to the second embodiment is the same as the fixing structure for a prefabricated building element, a structure and principle of a building prefabricated element according to the first embodiment, except that the present utility model provides another preferred embodiment of the connecting member.

As shown in fig. 4, 9, 11 and 12, the connecting member 40 includes a press-fit piece 42 and a bolt. The lower end of the pressing piece is provided with a grooving structure capable of accommodating the steel bars of the steel bar parts; the pressing piece is provided with a strip-shaped hole which penetrates through the pressing piece up and down; the threaded shaft portion of the bolt is configured to be received in a preformed hole of the preformed component, the preformed hole is communicated with the pouring space, the threaded shaft portion of the bolt penetrates through the preformed component and is exposed on the surface of the inner side wall of the preformed component, and the threaded shaft portion of the bolt is matched with the strip-shaped hole of the pressing piece.

The pressing piece penetrates through the hollowed-out part (the hollowed-out part of the reinforcement cage and the hollowed-out part of the reinforcement truss) of the reinforcement part, and the grooving structure of the pressing piece is sleeved with the reinforcement adjacent to the inner side wall of the prefabricated part of the reinforcement part; the pressing piece is sleeved on the threaded rod portion of the bolt through the strip-shaped hole of the pressing piece, the pressing piece is locked by the nut of the bolt, and then the steel bar part is fixed in the pouring space of the prefabricated part through the pressing pieces.

In a preferred implementation, the connection means comprise a pad 43 arranged between the head of the bolt and the outer lateral wall of the prefabricated part, the threaded shank of the bolt being threaded through the pad. Through the setting of backing plate, receive the atress by the backing plate, reduce stress concentration in prefabricated hole surrounding of prefabricated component. Because the thickness of the prefabricated part is thinner, the part of the main body of the prefabricated part around the prefabricated hole is easy to damage when the nut is locked.

It can be understood that when the grooving structure is used for buckling the longitudinal bars and the stirrups of the reinforcement cage, or the upper chord bars or the lower chord bars of the reinforcement truss, a plurality of main bars of the reinforcement parts can be fixed simultaneously through one pressing piece, the number of used connecting parts can be reduced by the connecting pieces with the hook parts, the connecting pieces are not required to be used for fixing the main bars of the reinforcement parts respectively, the operation intensity is reduced, and the installation efficiency of the reinforcement cage is improved.

In one implementation, as shown in fig. 4, the press-fit piece includes:

the groove structure comprises a first side plate, wherein protruding parts are respectively arranged at two side ends of the first side plate, and a hollow part is formed between the two protruding parts of the first side plate to form the groove structure;

the second side plates are arranged at intervals corresponding to the second side plates, protruding parts are respectively arranged at the two side ends of the second side plates, and two protruding parts of the second side plates are hollowed out to form the grooving structure;

the two connecting plates are connected with the first side plate on one side wall, and the second side plate on the other opposite side wall;

the two connecting plates are arranged at intervals, and the strip-shaped holes are formed through the side wall of the first side plate, the side wall of the second side plate and the side walls of the two connecting plates.

Specifically, the first side plate, the second side plate and the connecting plate are all made of metal materials, such as steel, aluminum alloy and the like. The first side plate, the second side plate and the connecting plate are connected through welding.

The second embodiment has obvious functional differences from the first embodiment, and because the first embodiment uses the connecting piece with the hook part, a plurality of connecting pieces are required to be distributed to connect and fix the reinforcing steel bar parts for fully fixing the reinforcing steel bar parts. Therefore, a plurality of reserved holes meeting the installation requirement are reserved on the prefabricated part, the production difficulty of the prefabricated part is greatly increased, and higher requirements are placed on the positions of the holes and the relative position precision between the holes. On the other hand, the installation workload of the connecting piece is huge, on the other hand, once the prefabricated hole is shaped, the relative position between the prefabricated hole and the ideal installation position of the steel bar part cannot be adjusted, and if the opening position error of the prefabricated hole is large, the steel bar part can be obviously misplaced.

Therefore, the utility model provides a connecting component which is simpler and more convenient to use and reliable to fix, and particularly, the pressing piece of the connecting component can be fixed by only one bolt, and therefore, only one prefabricated hole is correspondingly arranged on the prefabricated component. In the fixing, the two main bars distributed left and right or the two main bars distributed up and down of the bar member can be fixed at the same time by the grooving structure. In the second aspect, the pressing piece is provided with the strip-shaped hole, so that the bolt can be installed, larger installation errors are compatible, and the requirement on the position accuracy of the prefabricated hole is reduced. In the third aspect, the strip-shaped hole and the bolt are adopted for alignment and installation, namely, the pressing piece can be used for position adjustment in a certain range, and the positioning piece is different from the connecting piece with the hook part.

Example III

A fixing structure for prefabricated building elements, a building prefabricated element according to the third embodiment is the same as the fixing structure for prefabricated building elements, a structure and principle of the building prefabricated element according to the first embodiment, the second embodiment, except that the present utility model provides another preferred embodiment of the fixing structure.

In particular, as shown in fig. 1 to 6, the fixing structure of the third embodiment is mainly applied to a prefabricated building element which is a laminated column or a prefabricated column.

The outer profile of the cross section of the prefabricated part is rectangular or circular, the pouring cavity of the prefabricated part is a rectangular column cavity or a cylindrical column cavity which is matched, the thickness of the side wall of the prefabricated part is consistent, and it is understood that the thickness of the side wall corresponding to each part of the prefabricated part is the same. In the technical field of the utility model, the reinforcement cage is provided with a first part which is accommodated in the pouring cavity of the prefabricated part and a second part which is exposed from the upper surface of the prefabricated part. The second portion of the reinforcement cage is for node connection. The steel bar component is a steel bar cage arranged in the columnar pouring cavity.

Specifically, the plurality of interval maintaining pieces 50 are uniformly distributed on the outer surface of the reinforcement cage, and the interval maintaining pieces are connected with longitudinal ribs of the reinforcement cage; the space retainer is used for enabling the outer side wall of the reinforcement cage to be spaced from the corresponding inner side wall of the pouring cavity, and the space retainer is used for keeping the same space between the outer side wall of the reinforcement cage and the inner side wall of the pouring cavity.

Specifically, the interval maintaining piece comprises an arc-shaped protruding part 51 and a connecting part 52 which are integrally formed, and the connecting part is connected with the longitudinal ribs of the reinforcement cage; the outermost end of the arc-shaped protruding portion resists the inner wall of the pouring cavity.

In a specific embodiment, the spacing member is a metal plate bending member, and may be made of an alloy material such as steel. Specifically, the interval holder comprises an integrally formed arc-shaped protruding portion and two connecting portions, and the upper end and the lower end of the arc-shaped protruding portion are connected through the two connecting portions.

Wherein, connecting portion is connected with the longitudinal bar of steel reinforcement cage through the welded mode. The spacing retainer is formed by bending a metal plate with the thickness of 3 mm.

Through the design, the centering position of the reinforcement cage in the prefabricated component can be ensured, so that the position of the reinforcement cage in a cast-in-situ concrete layer which is poured later is reasonable, and finally the formed prefabricated column meets the corresponding design requirement.

Example IV

The fixing structure for prefabricating a building element and the building prefabricated element in the fourth embodiment are the same as those in the first embodiment and the second embodiment, and the structure and principle of the building prefabricated element are the same, and the fourth embodiment provides an application scene description of the fixing structure in the laminated slab.

As shown in fig. 7 and 8, the prefabricated parts are prefabricated panels and the prefabricated building parts are laminated panels.

The laminated slab comprises a precast slab, a plurality of steel bar components adopting steel bar trusses, a plurality of connecting components arranged on the precast slab and a cast-in-situ concrete layer formed on one side of the precast slab. The steel bar trusses are arranged on the surface of the precast slab facing the cast-in-situ concrete layer, and a plurality of steel bar trusses are buried in the cast-in-situ concrete layer; the connecting component is connected with the steel bar truss and is used for fixing the steel bar truss on the precast slab; and a plurality of steel bar trusses are buried in the cast-in-situ concrete layer.

Example five

The fixing structure for prefabricated building elements and the building prefabricated elements in the fifth embodiment are the same as those in the first and second embodiments, and the structure and principle of the building prefabricated elements are the same, and the fifth embodiment provides an application scene description of the fixing structure in the laminated beam.

As shown in fig. 9, the prefabricated parts are prefabricated beams, and the prefabricated building parts are laminated beams.

The composite beam comprises a precast beam, a reinforcement cage, a plurality of connecting components arranged on the precast beam, and a cast-in-situ concrete layer formed on the precast beam: the prefabricated beam is provided with an accommodating space with an open upper end, the steel reinforcement framework is arranged in the accommodating space of the prefabricated beam, and the upper surface of the prefabricated beam is exposed out of the steel reinforcement framework; the connecting component is connected with the steel reinforcement framework and is used for fixing the steel reinforcement framework on the inner wall surface of the accommodating space of the precast beam; and the cast-in-situ concrete layer is formed on the precast beam, and the steel reinforcement framework is buried in the cast-in-situ concrete layer.

In still another aspect, the precast beam includes a first plate body, and a second plate body and a third plate body integrally cast on the first plate body; the first plate body, the second plate body and the third plate body are jointly enclosed to form the accommodating space.

Through the arrangement, the precast beam is like a channel steel-shaped structure, the superposed beam formed by post-cast concrete on site in the accommodating space of the precast beam has good integrity, the torsional rigidity and the torsional bearing capacity are consistent with those of the integral cast-in-situ beam, and the problems that the integrity is slightly poor, the torsional rigidity is weakened, the calculation assumption is inconsistent with the actual stress and the like caused by the cast-in-situ part and the precast part which are layered up and down of the traditional superposed beam are avoided.

To meet the needs of the joints between the precast beams and the columns, both sides of the precast beams are open through, and a completely open structure is arranged above the precast beams, so that the whole structure of the precast beams is like channel steel in section steel.

Example six

The fixing structure for prefabricated building components and the building prefabricated components in the sixth embodiment are the same as those in the first embodiment and the second embodiment, and the structure and principle of the fixing structure for prefabricated building components and the structure and principle of the prefabricated building components in the second embodiment, and the sixth embodiment provides an application scene description of the fixing structure in the superimposed plate type shear wall.

As shown in fig. 10 to 12, the prefabricated parts are two prefabricated plates which are oppositely arranged at intervals, and the prefabricated building parts are stacked plate type shear walls.

The shear wall comprises an outer leaf precast slab and an inner leaf precast slab, wherein the inner leaf precast slab is arranged at intervals corresponding to the outer leaf precast slab, and a pouring cavity is formed between the inner leaf precast slab and the outer leaf precast slab. The superimposed plate type shear wall further comprises a plurality of steel bar trusses, a plurality of connecting parts respectively arranged on the outer leaf precast slabs and the inner leaf precast slabs, and a cast-in-situ concrete layer formed in the casting cavity. The steel bar truss is arranged in a pouring cavity between the inner leaf precast slab and the outer leaf precast slab; the connecting component is connected with the steel bar truss and is used for fixing the steel bar truss on the side walls of the inner leaf precast slab and the outer leaf precast slab; and the steel bar truss is buried in the cast-in-situ concrete layer.

Wherein, outer leaf prefabricated plate and interior leaf prefabricated plate are specification size, thickness, the equal plate body of material. Specifically, the outer leaf precast slab and the inner leaf precast slab are both formed by concrete casting.

The fixing structure for prefabricated building elements, other structures of prefabricated building elements described in this embodiment are referred to in the prior art.

The present utility model is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical proposal of the present utility model.

Claims (10)

1. A fixing structure for prefabricated building elements, comprising:

a prefabricated member having a casting space for casting concrete;

the connecting parts are arranged on the prefabricated parts and used for connecting the reinforcing steel bar parts, and the connecting parts are used for fixedly arranging the reinforcing steel bar parts in pouring spaces of the prefabricated parts.

2. A fixing structure for prefabricated building elements according to claim 1, wherein said connecting means comprises:

a connector configured to be receivable in a preformed hole of the preformed member, the preformed hole being in communication with the casting space; the connector has a hook portion and a threaded shank portion configured to connect with a lock nut of the exterior sidewall of the preform;

the hook parts of the connecting pieces are used for hooking the steel bars of the steel bar parts, and the steel bar parts are fixed in the pouring space of the prefabricated part through the connecting pieces.

3. A fixing structure for prefabricated building elements according to claim 2, wherein said connecting means comprises:

the base plate is arranged between the lock nut and the outer side wall of the prefabricated part, and the threaded rod part of the connecting piece penetrates through the base plate and is exposed out of the surface of the base plate.

4. A fixing structure for prefabricated building elements according to claim 1, wherein said connecting means comprises:

the lower end of the pressing piece is provided with a grooving structure capable of containing the steel bars of the steel bar parts; the pressing piece is provided with a strip-shaped hole which penetrates through the pressing piece up and down;

the threaded rod part of the bolt is configured to be received in a prefabricated hole of the prefabricated part, the prefabricated hole is communicated with the pouring space, the threaded rod part of the bolt penetrates through the prefabricated part and is exposed on the surface of the inner side wall of the prefabricated part, and the threaded rod part of the bolt is matched with the strip-shaped hole of the pressing piece;

the pressing piece penetrates through the hollowed-out part of the steel bar component, and the grooving structure of the pressing piece is sleeved with steel bars of the steel bar component adjacent to the inner side wall of the prefabricated component; the pressing piece is sleeved on the threaded rod portion of the bolt through the strip-shaped hole of the pressing piece, the pressing piece is locked by the nut of the bolt, and then the steel bar part is fixed in the pouring space of the prefabricated part through the pressing pieces.

5. A fixing structure for prefabricated building elements according to claim 4, wherein said press-fitting comprises:

the groove structure comprises a first side plate, wherein protruding parts are respectively arranged at two side ends of the first side plate, and a hollow part is formed between the two protruding parts of the first side plate to form the groove structure;

the second side plates are arranged at intervals corresponding to the second side plates, protruding parts are respectively arranged at the two side ends of the second side plates, and two protruding parts of the second side plates are hollowed out to form the grooving structure;

the two connecting plates are connected with the first side plate on one side wall, and the second side plate on the other opposite side wall;

the two connecting plates are arranged at intervals, and the strip-shaped holes are formed through the side wall of the first side plate, the side wall of the second side plate and the side walls of the two connecting plates.

6. A fixing structure for prefabricated building elements according to claim 1, further comprising:

a plurality of space holders for reinforcing bars connected to the reinforcing bar parts, the space holders being exposed on outer sidewalls of the reinforcing bar parts;

wherein the spacing holder is for spacing the outer side wall of the reinforcing bar part from the corresponding side wall of the prefabricated part, and the spacing holder is for holding the outer side wall of the reinforcing bar part from the corresponding side wall of the prefabricated part by the same spacing.

7. A fixing structure for prefabricated building elements according to claim 6, wherein:

the interval retainer comprises an arc-shaped protruding part and a connecting part which are integrally formed, and the connecting part is connected with the steel bar part; the outermost end of the arc-shaped protruding portion abuts against the side wall of the prefabricated component.

8. A fixing structure for prefabricated building elements according to claim 1, wherein:

the thickness of the prefabricated part is 10-15 mm.

9. A fixing structure for prefabricated building elements according to any one of claims 1 to 8, wherein:

the prefabricated component is a prefabricated plate, a prefabricated column or a prefabricated beam; or the prefabricated component is a prefabricated wall body formed by two prefabricated plates at opposite intervals.

10. A prefabricated building element comprising a fixing structure for a prefabricated building element according to claim 9, further comprising:

the steel bar component is arranged in the pouring space of the prefabricated component;

and the cast-in-situ concrete layer is formed in the casting space of the prefabricated part, and the steel bar component is arranged in the cast-in-situ concrete layer.