CN219033524U - Reinforced concrete superposed beam structure - Google Patents

Abstract

The utility model discloses a reinforced concrete superposed beam structure, which relates to the technical field of assembled buildings and comprises a beam body prefabricated part, a beam longitudinal reinforcing steel bar, a primary and secondary beam connecting part, a beam column connecting part and a beam wall connecting part; the beam body prefabrication part is provided with steel bars required by the stress of the beam body, the steel bars required by the stress of the beam body comprise longitudinal bars and stirrups, and plastic spherical hollow inner molds are uniformly distributed in the middle section range of the length direction of the beam body prefabrication part; the primary and secondary beam connecting parts, the beam column connecting parts and the beam wall connecting parts all adopt triple connecting paths, and the triple connecting paths are respectively: the high-strength bolt fastening lap joint steel pipe, the longitudinal steel bar anchor and the internal cavity are cast with concrete together to form a whole, and the reinforced concrete superposed column structure can have good mechanical properties and convenient prefabrication and assembly.

Description

Reinforced concrete superposed beam structure

Technical Field

The utility model relates to the technical field of assembled buildings, in particular to a reinforced concrete superposed beam structure.

Background

The reinforced concrete beam in the traditional technology is cast-in-situ, the construction mode is that binding reinforcing steel bars, erecting templates and pouring concrete are carried out on site, a large number of reinforcing steel bars are needed to bind workers, woodworkers and the like on the construction site, the requirements on labor intensity and skills are high, a large number of templates are needed, the whole construction period is long, and the construction efficiency is low.

Along with the national popularization of prefabrication of building industry, a reinforced concrete superposed beam is evolved on the basis of a reinforced concrete beam, the superposed beam structure mainly comprises a prefabrication part and a cast-in-situ part,

however, the connection node of the reinforced concrete composite beam in the prior art cannot be operated according to the construction of the cast-in-situ reinforced concrete beam, the connection reliability of the assembly structure is doubtful, and further improvement is required, as in the precast concrete composite beam disclosed in Chinese patent CN208056461U, the steel rib connecting piece 2 and the precast concrete composite beam 1 are prefabricated into an integral component in a factory, when the precast concrete composite beam 1 is installed on a construction site, the steel rib connecting piece 2 is pre-embedded at two ends of the composite beam 1 and the corresponding connecting piece on a profile steel column or a steel rib column are connected through high-strength bolts, and the connection technology can realize the rapid connection of the composite beam and the column or the beam, has construction feasibility and a certain technical advancement, but the technology only starts from the convenience of the construction of the composite beam, does not relate to the study of the bending strength of the composite beam, and the bending moment and the axial tension cannot be reliably transmitted.

Disclosure of Invention

The utility model aims to provide a reinforced concrete composite beam structure, which solves the defects in the prior art and improves the mechanical properties of a prefabricated composite beam.

In order to achieve the above object, the present utility model provides the following solutions:

the utility model provides a reinforced concrete superposed beam structure, which comprises a beam body prefabricated part, a beam longitudinal steel bar, a primary and secondary beam connecting part, a beam column connecting part and a beam wall connecting part, wherein the beam body prefabricated part is connected with the beam longitudinal steel bar; the beam body prefabrication part is provided with steel bars required by the stress of the beam body, the steel bars required by the stress of the beam body comprise longitudinal bars and stirrups, and plastic spherical hollow internal molds are uniformly distributed in the middle section range of the beam body prefabrication part in the length direction; the primary and secondary beam connecting parts, the beam column connecting parts and the beam wall connecting parts all adopt triple connecting paths, and the triple connecting paths are respectively: the high-strength bolt is fastened to overlap the steel pipe, the longitudinal steel bar is anchored, and the concrete is poured into the inner cavity together to form a whole.

Preferably, the primary and secondary beam connection parts ensure connection reliability through triple connection paths;

the first connection path is: the middle part of a first connecting steel pipe is embedded in a main beam body, the first connecting steel pipe and the main beam are integrally formed by wrapping with reinforced concrete, the outer end of the first connecting steel pipe extends out of the side surface of the main beam, a first threaded hole and a hole are formed in the side surface of the outer end of the first connecting steel pipe, a second connecting steel pipe is embedded in a secondary beam body, a second threaded hole and a hole are formed in the side surface of the second connecting steel pipe, the second connecting steel pipe is embedded and connected with the first connecting steel pipe, and the first threaded hole and the second threaded hole are fastened by penetrating and sleeving with a high-strength bolt;

the second connection path is: the secondary beam longitudinal steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the inner cavities of the girder body prefabricated parts, when the inner cavities of the girder body prefabricated parts and the inner cavities of the secondary girder body prefabricated parts are together poured with concrete, the secondary beam longitudinal steel bars are anchored in the girder after the concrete is solidified, so that the internal force conduction of the primary and secondary beams is realized, and an integral reinforced concrete entity is formed;

the third connection path is: and the cavities in the primary and secondary beams are cast with concrete to form a whole.

Preferably, the beam column connecting part ensures the connection reliability through a triple connecting path;

the first connection path is: the middle part of a first connecting steel pipe is buried in the column body, the first connecting steel pipe and the column body are integrally formed through wrapping by reinforced concrete, the outer end of the first connecting steel pipe extends out of the column body, a first threaded hole and a hole are formed in the lateral surface of the outer end of the first connecting steel pipe, a second connecting steel pipe is fixedly embedded in the beam body, a second threaded hole and a hole are formed in the lateral surface of the second connecting steel pipe, the second connecting steel pipe is connected with the first connecting steel pipe in a jogged mode, and the first threaded hole and the second threaded hole are fastened through high-strength bolts in a penetrating mode;

the second connection path is: the beam longitudinal steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the prefabricated column mould shell inner cavities, when the prefabricated column mould shell inner cavities and the prefabricated Liang Moke inner cavities are together poured with concrete, the beam longitudinal steel bars are anchored in the column after the concrete is solidified, so that free conduction of internal force of the beam column is realized, and an integral reinforced concrete entity is formed;

the third connection path is: and concrete is poured into the cavities in the beam columns together to form a whole.

Preferably, the beam wall connection part ensures connection reliability through a triple connection path;

the first connection path is: the middle part of a first connecting steel pipe is buried in a wall body, the first connecting steel pipe and the wall body are integrally formed by wrapping with reinforced concrete, the outer end of the first connecting steel pipe extends out of a column body, a first threaded hole and a hole are formed in the lateral surface of the outer end of the first connecting steel pipe, a second connecting steel pipe is fixedly embedded in a beam body, a second threaded hole and a hole are formed in the lateral surface of the second connecting steel pipe, the second connecting steel pipe is connected with the first connecting steel pipe in a jogged mode, and the first threaded hole and the second threaded hole are fastened by penetrating and sleeving high-strength bolts;

the second connection path is: the beam longitudinal steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the prefabricated wall formwork inner cavity, when the prefabricated wall formwork inner cavity and the prefabricated Liang Moke inner cavity are together poured with concrete, the beam longitudinal steel bars are anchored in the wall after the concrete is solidified, so that the free conduction of the internal force of the beam wall is realized, and an integral reinforced concrete entity is formed;

the third connection path is: and the cavity in the beam wall is cast with concrete to form a whole.

Preferably, the beam body prefabrication part is provided with steel bars (including longitudinal bars, stirrups and the like) required by the stress of the beam body, plastic spherical hollow internal molds are uniformly distributed in the middle section range of the beam body in the length direction, a first plastic spherical hollow internal mold is arranged in the middle of the prefabrication part of the main beam, and the ratio of the arrangement range (arranged in the middle of the span) to the span of the prefabrication part of the frame beam is 1:3; a second plastic spherical hollow inner mold is distributed in the middle of the prefabricated part of the secondary beam, and the ratio of the distribution range (distributed in the middle of the span) to the span of the prefabricated part of the floor secondary beam is 1:2; the height of the cross section of the prefabricated part of the frame beam is 300-3000 mm, the width of the cross section is 200-2000 mm, the ratio of the height of the cross section to the width of the cross section is 0.5-4, when the height of the cross section is smaller than 320mm, the outer diameter value of the first plastic spherical hollow inner mold is half of the height of the cross section, and when the height of the cross section is larger than or equal to 320mm, the outer diameter value of the first plastic spherical hollow inner mold is 160mm; the section height of the prefabricated part of the floor secondary beam is 300-3000 mm, the section width is 200-2000 mm, the ratio of the section height to the section width is 0.5-4, when the section height is smaller than 320mm, the outer diameter value of the second plastic spherical hollow inner mold is half of the section height value, and when the section height is larger than or equal to 320mm, the outer diameter value of the second plastic spherical hollow inner mold is 160mm.

Compared with the prior art, the utility model has the following technical effects:

the utility model provides a reinforced concrete superposed beam structure: 1. the beam body prefabrication part is provided with the steel bars (including longitudinal bars, stirrups and the like) required by the stress of the beam body, so that the work of binding the steel bars on site is saved, the binding of the steel bars is automatically completed in a factory, the labor capacity is reduced, and the production efficiency is improved; 2. the plastic spherical hollow inner mold is uniformly distributed in the middle section range of the beam body prefabrication part in the length direction, so that the material consumption of the central area is reduced at the part with smaller shearing force, the material consumption is saved, the dead weight is lightened, the earthquake action response is lightened, and the exertion efficiency of structural materials is improved; 3. the connection reliability is ensured by adopting triple connection paths for the primary and secondary beam connection parts, the beam column connection parts and the beam wall connection parts, the structural integrity is improved, and the internal force (bending moment, shearing force, torque, tension force and pressure) can be effectively transmitted. Through the design, the reinforced concrete superposed column structure has good mechanical properties and is convenient to prefabricate and assemble.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a primary and secondary beam connection structure provided by the present utility model;

FIG. 2 is a schematic view of a beam-column connection structure according to the present utility model;

FIG. 3 is a schematic view of a beam wall connection part structure according to the present utility model;

fig. 4 is a schematic view of a main beam structure provided by the present utility model;

FIG. 5 is a schematic cross-sectional view of the main beam structure provided in FIG. 4 at A-A;

FIG. 6 is a schematic cross-sectional view of the main beam structure provided in FIG. 4 at B-B;

fig. 7 is a schematic cross-sectional view of the main beam structure provided in fig. 4 at C-C.

In the figure: 100-reinforced concrete composite beam structure, 1-main connecting piece, 2-secondary connecting piece, prefabricated part of 3-support piece, prefabricated part of 4-supported piece, 5-first pouring space, 6-cavity in main connecting piece, 7-cast-in-place part of support piece forming space, 8-cast-in-place part of supported piece forming space, 9-fastener, 10-steel square tube, 11-steel plate, 12-peg, 13-waist rib, 14-bottom rib, 15-first plastic spherical hollow internal mold.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model aims to provide a reinforced concrete superposed beam structure which solves the problems in the prior art and can effectively improve the force transmission reliability.

The utility model provides a reinforced concrete superposed beam structure which comprises a beam body prefabricated part, a beam longitudinal reinforcing steel bar, a primary and secondary beam connecting part, a beam column connecting part and a beam wall connecting part; the beam body prefabrication part is provided with steel bars required by the stress of the beam body, the steel bars required by the stress of the beam body comprise longitudinal bars and stirrups, and plastic spherical hollow inner molds are uniformly distributed in the middle section range of the length direction of the beam body prefabrication part; the primary and secondary beam connecting parts, the beam column connecting parts and the beam wall connecting parts all adopt triple connecting paths, and the triple connecting paths are respectively: the high-strength bolt is fastened to overlap the steel pipe, the longitudinal steel bar is anchored, and the concrete is poured into the inner cavity together to form a whole.

As a preferred embodiment of the present utility model, the primary and secondary beam connection portions ensure connection reliability through triple connection paths;

the first connection path is: the middle part of the first connecting steel pipe is embedded in the main beam body, the first connecting steel pipe and the main beam form a whole through reinforced concrete wrapping, the outer end of the first connecting steel pipe extends out of the side surface of the main beam, the side surface of the outer end of the first connecting steel pipe is provided with a first threaded hole and a hole, the second connecting steel pipe is embedded in the secondary beam body, the side surface of the second connecting steel pipe is provided with a second threaded hole and a hole, the second connecting steel pipe is embedded and connected with the first connecting steel pipe, and the first threaded hole and the second threaded hole are fastened through high-strength bolts;

the second connection path is: the secondary beam longitudinal steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the inner cavities of the girder body prefabricated parts, when the inner cavities of the girder body prefabricated parts and the inner cavities of the secondary girder body prefabricated parts are together poured with concrete, the secondary beam longitudinal steel bars are anchored in the girder after the concrete is solidified, so that the internal force conduction of the primary and secondary beams is realized, and an integral reinforced concrete entity is formed;

the third connection path is: and the cavities in the primary and secondary beams are cast with concrete to form a whole.

As a preferred embodiment of the present utility model, the beam-column connection portion ensures connection reliability through a triple connection path;

the first connection path is: the middle part of the first connecting steel pipe is buried in the column body, the first connecting steel pipe and the column body are integrally formed by wrapping with reinforced concrete, the outer end of the first connecting steel pipe extends out of the column body, a first threaded hole and a hole are formed in the side face of the outer end of the first connecting steel pipe, the second connecting steel pipe is fixedly embedded in the beam body, a second threaded hole and a hole are formed in the side face of the second connecting steel pipe, the second connecting steel pipe is connected to the first connecting steel pipe in an embedded mode, and the first threaded hole and the second threaded hole are fastened by penetrating and sleeving high-strength bolts;

the second connection path is: the beam longitudinal steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the prefabricated column mould shell inner cavities, concrete is poured together with the prefabricated Liang Moke inner cavities when the prefabricated column mould shell inner cavities are solidified, the beam longitudinal steel bars are anchored in the columns after the concrete is solidified, and the free conduction of the internal force of the beam columns is realized, so that an integral reinforced concrete entity is formed;

the third connection path is: and concrete is poured into the cavities in the beam columns together to form a whole.

As a preferred embodiment of the present utility model, the beam wall connection portion ensures connection reliability through triple connection paths;

the first connection path is: the middle part of the first connecting steel pipe is buried in the wall body, the first connecting steel pipe and the wall body are integrally formed by wrapping with reinforced concrete, the outer end of the first connecting steel pipe extends out of the column body, the side surface of the outer end of the first connecting steel pipe is provided with a first threaded hole and a hole, the second connecting steel pipe is fixedly embedded in the beam body, the side surface of the second connecting steel pipe is provided with a second threaded hole and a hole, the second connecting steel pipe is connected with the first connecting steel pipe in an embedded mode, and the first threaded hole and the second threaded hole are fastened by penetrating and sleeving with a high-strength bolt;

the second connection path is: the longitudinal beam steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the prefabricated wall formwork inner cavity, concrete is poured together with the prefabricated Liang Moke inner cavity when the prefabricated wall formwork inner cavity and the prefabricated Liang Moke inner cavity are solidified, the longitudinal beam steel bars are anchored in the wall after the concrete is solidified, and free conduction of the internal force of the beam wall is realized, so that an integral reinforced concrete entity is formed;

the third connection path is: and the cavity in the beam wall is cast with concrete to form a whole.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Example 1

As shown in fig. 1 to 7, the present embodiment provides a reinforced concrete composite beam structure 100, comprising a main connector 1 and a secondary connector 2, the main connector 1 being adapted to be placed on a prefabricated part 3 of a support member at a connection node for connecting the prefabricated part 4 of the supported member; the reinforcement cage of the prefabricated part 3 of the support is continuous at the connecting joint, and the main connecting piece 1 is used for fixedly connecting with the reinforcement cage of the prefabricated part 3 of the support; the first end of the secondary connecting piece 2 is used for being fixedly embedded at one end of the prefabricated part 4 of the supported piece, the second end of the secondary connecting piece 2 is used for extending into one end of the main connecting piece 1 and is fixedly connected with the main connecting piece 1 through a fastener 9, and a first pouring space 5 is reserved between the second end of the secondary connecting piece 2 and the main connecting piece 1; the first casting space 5, the cavity 6 in the main connecting piece, the forming space 7 of the cast-in-situ part of the supporting piece and the forming space 8 of the cast-in-situ part of the supported piece are communicated and used for casting concrete.

According to the reinforced concrete composite beam structure 100 provided by the embodiment, the main connecting piece 1 is arranged at the connecting node of the prefabricated part 3 of the supporting piece and used for connecting the prefabricated part 4 of the supported piece, the main connecting piece 1 is fixedly connected with the reinforcement cage of the prefabricated part 3 of the supporting piece, the first end of the secondary connecting piece 2 is arranged at one end of the prefabricated part 4 of the supported piece, the second end of the secondary connecting piece 2 is used for extending into one end of the main connecting piece 1 and is fixedly connected with the main connecting piece 1 through the fastening piece 9, a first pouring space 5 is reserved between the second end of the secondary connecting piece 2 and the main connecting piece 1, the first pouring space 5, a cavity 6 in the main connecting piece, a forming space 7 of the cast-in-place part of the supporting piece and a forming space 8 of the cast-in-place part of the supported piece are communicated to form a cast-in-place concrete area and used for pouring concrete, the effective transmission of torque between the supporting piece and the supported piece through the main connecting piece 1, the secondary connecting piece 2 and the cast-in-place concrete structure is realized, the continuous reinforcement cage of the prefabricated part 3 can be maintained at the connecting piece at the connecting node, the continuous performance of the whole support cage can be guaranteed, and the continuous performance of the reinforcement cage can be guaranteed, and the continuous performance of the continuous connection can be guaranteed at the node of the continuous connection of the reinforcement cage can be guaranteed; in the aspect of convenience of site construction, the support piece is prefabricated into a prefabricated part in a factory, a template is not required to be manufactured on site to perform construction of the prefabricated part, and a reinforcement cage (reinforcement cage) in the prefabricated part is completed, so that the support piece basically has the bearing capacity of a construction state, the setting of additional auxiliary supports in site construction can be effectively reduced, and only a proper amount of supports and hoops (for avoiding die explosion) are required to be arranged in special conditions (such as larger span and larger layer height); in the aspect of social benefits, a large number of complex construction steps (such as manufacturing templates, cutting, welding and the like) are finished in factories, supervision and detection are convenient, related operations can be finished by fully utilizing automatic equipment, electric welding and cutting are not needed basically on site, dangerous sources such as electricity, fire and the like and pollution sources such as noise, dust, chemical agents and the like are reduced, meanwhile, the number of workers on site and construction time can be reduced due to the reduction of the engineering quantity of on-site operation, the construction efficiency on site can be improved, safety management is convenient, and the operation safety risk is reduced, wherein due to the reduction of environmental protection and operation safety management cost, the industrialized (mechanized) production is improved, the construction time is shortened, and further, the labor cost (wages, management cost, insurance cost, accident compensation and the like) can be effectively reduced due to the improvement of the construction efficiency, the time cost (loan interest, etc.) of construction funds will also be reduced, the complex and difficult steps are all completed in factories (factory manufacture, convenient supervision and detection, and a large number of robot operations are adopted), the site is only subjected to the simple steps of mature technology, and the site steps are reduced, which is beneficial to improving the engineering quality, so the reinforced concrete composite beam structure 100 provided by the embodiment can perfect the defects and shortcomings of the existing reinforced concrete composite beam technology, develop the advantages of reducing the dangerous source and pollution source of engineering construction, improving the construction efficiency, saving the manufacturing cost, improving the engineering quality, and the like of the prefabricated construction technology, and simultaneously realize the effective improvement of the mechanical property of the reinforced concrete composite beam structure 100 on the premise of ensuring the feasibility and convenience of construction, and the force transmission reliability is ensured.

The main and secondary beam connecting parts are parts where the frame beams are connected with the floor secondary beams, at the moment, the frame beams are supporting pieces, and the prefabricated parts of the frame beams are prefabricated frame beams; the number of the floor secondary beams is two, the number of the floor secondary beams is respectively a first floor secondary beam and a second floor secondary beam, the prefabricated part of the first floor secondary beam is a first prefabricated floor secondary beam, and the prefabricated part of the second floor secondary beam is a second prefabricated floor secondary beam; the number of the secondary connectors 2 is two, and the secondary connectors are respectively first floor secondary beam connectors and second floor secondary beam connectors; the first end of the first floor secondary beam connecting piece is used for being fixedly embedded at one end of the first prefabricated floor secondary beam, the second end of the first floor secondary beam connecting piece is used for extending into the first end of the main connecting piece 1 and is fixedly connected with the main connecting piece 1 through a fastener 9, and a second pouring space is reserved between the second end of the first floor secondary beam connecting piece and the main connecting piece 1; the first end of the second floor secondary beam connecting piece is used for being fixedly embedded at one end of the second prefabricated floor secondary beam, the second end of the second floor secondary beam connecting piece is used for extending into the second end of the main connecting piece 1 and is fixedly connected with the main connecting piece 1 through a fastener 9, and a third pouring space is reserved between the second end of the second floor secondary beam connecting piece and the main connecting piece 1; the second casting space, the third casting space, the cavity 6 in the main connecting piece, the upper space of the top surface of the prefabricated frame beam, the upper space of the top surface of the first prefabricated floor secondary beam and the upper space of the top surface of the second prefabricated floor secondary beam are communicated and used for casting concrete, wherein the second casting space and the third casting space form a first casting space 5, the upper space of the top surface of the prefabricated frame beam corresponds to a forming space 7 (corresponding mold is needed to be supported when the concrete is cast in place) of a cast-in-place part of the supporting piece, the upper space of the top surface of the first prefabricated floor secondary beam and the upper space of the top surface of the second prefabricated floor secondary beam form a forming space 8 (corresponding mold is needed to be supported when the concrete is cast in place) of a cast-in-place part of the supported piece, a hole which can enable a steel reinforcement framework of the prefabricated frame beam to pass is formed on the main connecting piece 1, the reinforcement cage of the prefabricated frame beam is kept continuous, in addition, the main connecting piece 1 is also provided with holes which can enable the top gluten and the bottom gluten of the first floor secondary beam and the second floor secondary beam to pass through, and the top gluten and the bottom gluten of the first floor secondary beam and the second floor secondary beam pass through the holes and penetrate (or penetrate) the beam body of the prefabricated frame beam, so that the anchoring of the top gluten and the bottom gluten of the first floor secondary beam and the second floor secondary beam on the prefabricated frame beam is realized after the on-site pouring is finished, meanwhile, the specific materials, structures and sizes of the main connecting piece 1, the first floor secondary beam connecting piece and the second floor secondary beam connecting piece are required to be specifically determined according to the axial tension, the beam end shearing force and the like of the actual first floor secondary beam and the second floor secondary beam, wherein the main connecting piece 1 is equivalent to a bracket, the beam end shearing force of the first floor secondary beam and the second floor secondary beam can be effectively transferred, and finally, the first floor secondary beam and the second floor secondary beam are fixedly connected with the frame beam through cast-in-place concrete, so that the shearing force is transferred, and the integrity is enhanced.

The beam column connecting part is a part where the column is connected with the frame beam, at the moment, the column is a supporting piece, and the prefabricated part of the column is a column prefabricated mould shell; the frame beams are supported pieces, the number of the frame beams is two, the frame beams are a first frame beam and a second frame beam respectively, the prefabricated part of the first frame beam is a first prefabricated frame beam, and the prefabricated part of the frame beam is a second prefabricated frame beam; the number of the secondary connectors 2 is two and the secondary connectors are respectively a first frame beam connector and a second frame beam connector; the first end of the first frame beam connecting piece is used for being fixedly embedded at one end of the first prefabricated frame beam, the second end of the first frame beam connecting piece is used for extending into the first end of the main connecting piece 1 and is fixedly connected with the first end of the main connecting piece 1 through a fastener 9, and a fourth pouring space is reserved between the second end of the first frame beam connecting piece and the main connecting piece 1; the first end of the second frame beam connecting piece is used for being fixedly embedded at one end of the second prefabricated frame beam, the second end of the second frame beam connecting piece is used for extending into the first end of the main connecting piece 1 and is fixedly connected with the second end of the main connecting piece 1 through a fastener 9, and a fifth pouring space is reserved between the second end of the second frame beam connecting piece and the main connecting piece 1; the fourth casting space, the fifth casting space, the space in the column prefabricating formwork, the space above the top surface of the first prefabricating frame beam and the space above the top surface of the second prefabricating frame beam are communicated and used for casting concrete, wherein the fourth casting space and the fifth casting space form a first casting space 5, the space in the column prefabricating formwork corresponds to a forming space 7 of a cast-in-place part of a supporting piece, the space above the top surface of the first prefabricating frame beam and the space above the top surface of the second prefabricating frame beam form a forming space 8 of the cast-in-place part of the supported piece (corresponding molds are needed to be supported during cast-in-place concrete), a hole through which a steel bar skeleton of the column prefabricating formwork can pass is formed in the main connecting piece 1, so that the steel bar skeleton of the column prefabricating formwork is kept continuous, the main connecting piece 1 is also provided with holes which can enable the top gluten and the bottom gluten of the first frame beam and the second frame beam to pass through, so that the top gluten and the bottom gluten of the first frame beam and the second frame beam pass through the holes and penetrate (or penetrate) the column prefabrication formwork so as to realize the anchoring of the top gluten and the bottom gluten of the first frame beam and the second frame beam on the column prefabrication formwork after the on-site pouring is finished, meanwhile, the specific materials, structures and sizes of the main connecting piece 1, the first frame beam connecting piece and the second frame beam connecting piece are required to be specifically determined according to the actual axial tension, beam end shearing force and the like of the first frame beam and the second frame beam, wherein the main connecting piece 1 is equivalent to a bracket, can effectively transfer the beam end shearing force of the first frame beam and the second frame beam, finally, the first frame beam and the second frame beam are solidified with the column through cast-in-place concrete, strengthening the integrity.

The beam wall connecting part is a part where the shear wall is connected with the frame beam, at the moment, the shear wall is a supporting piece, and the prefabricated part of the shear wall is a shear wall prefabricated formwork; the frame beam is a supported piece, and the prefabricated part of the frame beam is a prefabricated frame beam; the secondary connecting piece 2 is a frame beam connecting piece; the first end of the frame beam connecting piece is used for being fixedly embedded at one end of the prefabricated frame beam, the second end of the frame beam connecting piece is used for extending into the first end of the main connecting piece 1 and is fixedly connected with the first end of the main connecting piece 1 through a fastener 9, and a sixth pouring space is reserved between the second end of the frame beam connecting piece and the main connecting piece 1; the sixth pouring space, the space in the precast shear wall formwork and the space above the top surface of the precast frame beam are communicated and used for pouring concrete, wherein the sixth pouring space corresponds to the first pouring space 5, the space in the precast shear wall formwork corresponds to the forming space 7 of the cast-in-place part of the supporting piece, the space above the top surface of the precast frame beam corresponds to the forming space 8 of the cast-in-place part of the supported piece (a corresponding mold is required to be supported during cast-in-place concrete), holes which can enable the steel reinforcement framework of the precast shear wall formwork to pass through are formed in the main connecting piece 1, so that the steel reinforcement framework of the precast shear wall formwork is kept continuous, holes which can enable the top surface ribs and the bottom surface ribs of the frame beam to pass through the holes and penetrate (or penetrate) the precast shear wall formwork are formed in the main connecting piece 1, the anchoring of the top surface ribs and the bottom surface ribs of the frame beam on the precast frame beam is conveniently realized after the on-site pouring is finished, and the materials, structures, the concrete of the main connecting piece and the concrete frame beam are required to be fixedly connected with the concrete support frame beam according to the axial direction of the actual frame beam, the concrete beam end, the shear beam end and the like, and the shear force can be effectively transferred to the frame beam, and finally the shear force can be transferred to the frame beam, and the shear force can be effectively transferred to the frame beam, and the frame end is fixed.

As an alternative implementation manner of this embodiment, the main connecting piece 1 is welded with the reinforcement cage of the prefabricated part 3 of the supporting piece, and preferably, the reinforcement cage of the prefabricated part 3 of the supporting piece includes a section steel, and the section steel is used for being fixedly embedded in the prefabricated part 3 of the supporting piece, the main connecting piece 1 is used for being welded with the section steel into a whole, and the stress force transmission condition is further improved by embedding the section steel, so that the stability of the connecting structure is improved.

As an alternative implementation mode of the embodiment, the fastener 9 adopts high-strength bolts, high-strength bolt holes are reserved on the main connecting piece 1 and the secondary connecting piece 2, and the site construction only needs to fasten the high-strength bolts, cast concrete and normally maintain.

Further, the secondary connection member 2 includes a steel square tube 10 and two steel plates 11, the steel square tube 10 is used for fixing and embedding one end of the prefabricated part 4 of the supported member, and the steel square tube 10 is internally and fixedly provided with a peg 12, the peg 12 is used for fixing and embedding one end of the two steel plates 11 is used for fixing and embedding one end of the prefabricated part 4 of the supported member on the steel square tube 10, the other end of the two steel plates 11 is used for extending into one end of the main connection member 1 and fixedly connecting with the main connection member 1 through a fastener 9, and a first casting space 5 is reserved between the part of the two steel plates 11 extending into the main connection member 1 and the main connection member 1, wherein the steel square tube 10 and the two steel plates 11 can be manufactured separately and welded into a whole, or manufactured integrally and then simply cut and molded (such as selecting a longer steel square tube 10, and then cutting to obtain the same structure as that obtained by connecting the steel square tube 10 and the two steel plates 11 in the embodiment).

Further, the steel square tube 10 is used for fixedly sleeving the outer sides of the waist rib 13 and the bottom rib 14 of the prefabricated part 4 of the supported piece, the two steel plates 11 are used for fixedly arranging the outer sides of the waist rib 13 and the bottom rib 14 of the prefabricated part 4 of the supported piece, the waist rib 13 of the prefabricated part 4 of the supported piece is arranged in the steel square tube 10, the part between the two steel plates 11 is used for being welded on the inner wall of the steel square tube 10 and the inner wall of the two steel plates 11 in a single-sided manner, the length value of the welding seam is not smaller than 10 times of the diameter value of the waist rib 13 of the prefabricated part 4 of the supported piece, so that the connection stability of the steel square tube 10 and the steel plates 11 and the supported piece is improved, and effective transmission of bending moment and tension force can be realized.

A first plastic spherical hollow inner mold 15 is arranged in the middle of the prefabricated part of the frame beam, and the ratio of the arrangement range (arranged in the middle of the span) to the span of the prefabricated part of the frame beam is 1:3; a second plastic spherical hollow inner mold is arranged in the middle of the prefabricated part of the floor secondary beam, and the ratio of the arrangement range (arranged in the middle of the span) to the span of the prefabricated part of the floor secondary beam is 1:2; the cross-section height of the prefabricated part of the frame beam is 300-3000 mm, the cross-section width is 200-2000 mm, the ratio of the cross-section height to the cross-section width is 0.5-4, when the cross-section height is smaller than 320mm, the outer diameter value of the first plastic spherical hollow inner mold 15 is half of the cross-section height value, and when the cross-section height is larger than or equal to 320mm, the outer diameter value of the first plastic spherical hollow inner mold 15 is 160mm; the section height of the prefabricated part of the floor secondary beam is 300-3000 mm, the section width is 200-2000 mm, the ratio of the section height to the section width is 0.5-4, when the section height is smaller than 320mm, the outer diameter value of the second plastic spherical hollow inner mold is half of the section height value, and when the section height is larger than or equal to 320mm, the outer diameter value of the second plastic spherical hollow inner mold is 160mm.

Compared with the existing reinforced concrete laminated Liang Duowei solid concrete, the reinforced concrete laminated Liang Duowei solid concrete has the advantages that the stress effect of the material at the center part is less, the weight is more occupied, the structure is more outstanding in large-span and super-high-rise building engineering, the cross section size of the laminated beam is required to be increased in geometric progression, the material use efficiency is not improved, the self weight (especially the low-efficiency surplus part) of the material can greatly occupy the bearing capacity, the super-high-rise building engineering is obviously affected by the earthquake effect, the earthquake effect is in direct proportion to the mass of the building, the structural beam occupies a certain proportion of the mass of the building, and each floor is larger, the total layer-by-layer lamination amount is not less, so that the self weight (especially the low-efficiency surplus part) of the reinforced concrete laminated beam material is not optimized, the self weight of the laminated beam can be effectively reduced through the structure, the shock resistance is stronger, and in the embodiment, the frame beam and the material of the floor sub-beam can be adopted: the steel bar grade HRB500 or HRB400, the steel bar grade Q235B or Q345B or Q390B and the concrete strength grade C30-C40 are prepared by adopting common concrete or light fiber concrete (steel wires, organic fibers, ceramsite and the like are added to replace part of sand and stones, and high-strength cement is adopted to prepare the concrete, so that the strength is reduced by 40 percent compared with that of the common concrete); according to the corrosiveness of the actual use environment, the concrete setting distance of the outermost side of the reinforcing steel bars from the outer edge of the concrete structure of the prefabricated part is selected from the range of 25-40 mm, and the maximum length of each prefabricated part is 15m (through road transportation) to 50m (through shipping or water hauling floating transportation).

Example two

The present embodiment provides a reinforced concrete composite beam structure, which is different from the reinforced concrete composite beam structure 100 provided in the first embodiment in that: in the reinforced concrete superposed beam structure provided by the embodiment, the main connecting piece is a first connecting steel pipe, the middle part of the first connecting steel pipe is used for being buried in the prefabricated part of the supporting piece and is connected with the prefabricated part of the supporting piece into a whole through reinforced concrete wrapping of the prefabricated part of the supporting piece, the end part of the first connecting steel pipe is used for extending out of the prefabricated part of the supporting piece, and a first threaded hole is arranged on the side wall of the first connecting steel pipe; the secondary connecting piece is a second connecting steel pipe which is used for being embedded and fixed in the prefabricated part of the supported piece, and a second threaded hole is arranged on the side wall of the second connecting steel pipe; the first threaded hole and the second threaded hole are fixedly connected through a fastening bolt to form a first connecting structure; the longitudinal steel bars of the prefabricated part of the supported piece can penetrate through the pipe holes of the first connecting steel pipe and the pipe holes of the second connecting steel pipe and extend into the cavity in the prefabricated part of the supporting piece, the pipe holes of the first connecting steel pipe, the pipe holes of the second connecting steel pipe, the forming space of the cast-in-situ part of the supported piece and the cavity in the prefabricated part of the supporting piece are jointly poured with concrete and are fixedly connected into an integral reinforced concrete solid structure to form a second connecting structure, the longitudinal steel bars of the prefabricated part of the supported piece can be fixedly anchored in the supporting piece, wherein the first threaded holes (the first connecting steel pipe) and the second threaded holes (the second connecting steel pipe) are fixedly connected through fastening bolts, concrete is jointly poured and fixedly connected into the integral reinforced concrete solid structure through the pipe holes of the first connecting steel pipe, the pipe holes of the second connecting steel pipe, the forming space of the cast-in-situ part of the supported piece and the cavity in the prefabricated part of the supporting piece, and the longitudinal steel bars of the prefabricated part of the supported piece can be fixedly anchored in the supporting piece, so that the reliability and the force transmission reliability of the laminated steel bar structure can be effectively improved under the premise of ensuring the construction feasibility and the convenience.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (4)

1. The utility model provides a reinforced concrete composite beam structure which characterized in that: the beam comprises a beam body prefabricated part, a beam longitudinal steel bar, a primary and secondary beam connecting part, a beam column connecting part and a beam wall connecting part; the beam body prefabrication part is provided with steel bars required by the stress of the beam body, the steel bars required by the stress of the beam body comprise longitudinal bars and stirrups, and plastic spherical hollow internal molds are uniformly distributed in the middle section range of the beam body prefabrication part in the length direction; the primary and secondary beam connecting parts, the beam column connecting parts and the beam wall connecting parts all adopt triple connecting paths, and the triple connecting paths are respectively: the high-strength bolt is fastened to overlap the steel pipe, the longitudinal steel bar is anchored, and the concrete is poured into the inner cavity together to form a whole.

2. The reinforced concrete composite beam structure of claim 1, wherein: the main beam connecting part and the secondary beam connecting part ensure the connection reliability through a triple connecting path;

the first connection path is: the middle part of a first connecting steel pipe is embedded in a main beam body, the first connecting steel pipe and the main beam are integrally formed by wrapping with reinforced concrete, the outer end of the first connecting steel pipe extends out of the side surface of the main beam, a first threaded hole and a hole are formed in the side surface of the outer end of the first connecting steel pipe, a second connecting steel pipe is embedded in a secondary beam body, a second threaded hole and a hole are formed in the side surface of the second connecting steel pipe, the second connecting steel pipe is connected with the first connecting steel pipe in a jogged mode, and the first threaded hole and the second threaded hole are fastened by penetrating and sleeving high-strength bolts;

the second connection path is: the secondary beam longitudinal steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the inner cavities of the girder body prefabricated parts, when the inner cavities of the girder body prefabricated parts and the inner cavities of the secondary girder body prefabricated parts are together poured with concrete, the secondary beam longitudinal steel bars are anchored in the girder after the concrete is solidified, so that the internal force conduction of the primary and secondary beams is realized, and an integral reinforced concrete entity is formed;

the third connection path is: and the cavities in the primary and secondary beams are cast with concrete to form a whole.

3. The reinforced concrete composite beam structure of claim 1, wherein: the beam column connecting part ensures the connection reliability through a triple connecting path;

the first connection path is: the middle part of a first connecting steel pipe is buried in the column body, the first connecting steel pipe and the column body are integrally formed through wrapping by reinforced concrete, the outer end of the first connecting steel pipe extends out of the column body, a first threaded hole and a hole are formed in the lateral surface of the outer end of the first connecting steel pipe, a second connecting steel pipe is fixedly embedded in the beam body, a second threaded hole and a hole are formed in the lateral surface of the second connecting steel pipe, the second connecting steel pipe is connected with the first connecting steel pipe in a jogged mode, and the first threaded hole and the second threaded hole are fastened through high-strength bolts in a penetrating mode;

the second connection path is: the beam longitudinal steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the prefabricated column mould shell inner cavities, when the prefabricated column mould shell inner cavities and the prefabricated Liang Moke inner cavities are together poured with concrete, the beam longitudinal steel bars are anchored in the column after the concrete is solidified, so that free conduction of internal force of the beam column is realized, and an integral reinforced concrete entity is formed;

the third connection path is: and concrete is poured into the cavities in the beam columns together to form a whole.

4. The reinforced concrete composite beam structure of claim 1, wherein: the beam wall connecting part ensures the connection reliability through a triple connecting path;

the first connection path is: the middle part of a first connecting steel pipe is buried in a wall body, the first connecting steel pipe and the wall body are integrally formed by wrapping with reinforced concrete, the outer end of the first connecting steel pipe extends out of a column body, a first threaded hole and a hole are formed in the lateral surface of the outer end of the first connecting steel pipe, a second connecting steel pipe is fixedly embedded in a beam body, a second threaded hole and a hole are formed in the lateral surface of the second connecting steel pipe, the second connecting steel pipe is connected with the first connecting steel pipe in a jogged mode, and the first threaded hole and the second threaded hole are fastened by penetrating and sleeving high-strength bolts;

the second connection path is: the beam longitudinal steel bars are welded on the second connecting steel pipes and then extend forwards continuously to be inserted into the prefabricated wall formwork inner cavity, when the prefabricated wall formwork inner cavity and the prefabricated Liang Moke inner cavity are together poured with concrete, the beam longitudinal steel bars are anchored in the wall after the concrete is solidified, so that the free conduction of the internal force of the beam wall is realized, and an integral reinforced concrete entity is formed;

the third connection path is: and the cavity in the beam wall is cast with concrete to form a whole.

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