CN210177683U

CN210177683U - Connection node structure of secondary beam and main beam

Info

Publication number: CN210177683U
Application number: CN201920766559.3U
Authority: CN
Inventors: Yi Yang; 杨逸; Yunfei Ma; 马云飞; Meng Zhang; 张猛; Guang Chen; 陈�光
Original assignee: Sany Construction Industry Co Ltd
Current assignee: Sany Construction Technology Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-03-24
Anticipated expiration: 2029-05-24

Abstract

The utility model relates to an assembly type structure system technical field, in particular to connected node structure of secondary beam and girder. The connecting node structure of the secondary beam and the main beam comprises a prefabricated beam, a connecting port and connecting longitudinal ribs; the precast beam comprises a main beam and a secondary beam; the precast beam comprises a shell, a bulge and a reinforcement cage, the reinforcement cage is positioned in the shell, and the bulge is connected between the shell and the reinforcement cage; one end of the prefabricated secondary beam is perpendicular to the middle of the prefabricated main beam; the middle part of the prefabricated main beam is provided with a connector, one end of the connecting longitudinal rib is connected with the reinforcement cage of the prefabricated secondary beam, and the other end of the connecting longitudinal rib extends into the reinforcement cage of the prefabricated main beam through the connector. This connection structure of girder and secondary beam is simple, need not to tie up a large amount of reinforcing bars in the work progress admittedly, and the work progress is simple to can improve the efficiency of construction, save construction cost.

Description

Connection node structure of secondary beam and main beam

Technical Field

The utility model relates to an assembly type structure system technical field, in particular to connected node structure of secondary beam and girder.

Background

One of the important measures for promoting the industrialized development of buildings and transformation and upgrade of the building industry in China is to promote the research and application of key technologies in aspects of building structure systems, building design, component parts and the like. The prefabricated building refers to a building assembled on a construction site by using prefabricated components. The building has the advantages of high building speed, less restriction by climatic conditions, labor saving and building quality improvement.

In the assembling process of the assembly type structure system, the secondary beam and the main beam need to be connected, at present, a constructor firstly binds reinforcing steel bars, then pours the formed beam and then pours the secondary beam and the main beam, and therefore the problems of more field manual operations, low construction efficiency and low industrialization degree can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connected node structure of secondary beam and girder to solve the technical problem that the secondary beam among the prior art is connected the efficiency of construction low with the girder.

The utility model provides a connected node structure of secondary beam and girder, include: the prefabricated beam, the connectors and the connecting longitudinal bars; the precast beam comprises a main beam and a secondary beam;

the precast beam comprises a shell, a bulge and a reinforcement cage, the reinforcement cage is positioned in the shell, and the bulge is connected between the shell and the reinforcement cage;

one end of the prefabricated secondary beam is perpendicular to the middle of the prefabricated main beam; the middle part of the prefabricated main beam is provided with a connector, one end of the connecting longitudinal rib is connected with the reinforcement cage of the prefabricated secondary beam, and the other end of the connecting longitudinal rib extends into the reinforcement cage of the prefabricated main beam through the connector.

Furthermore, the connecting longitudinal ribs comprise upper ribs and lower ribs; the upper portion muscle sets up the upper portion at the steel reinforcement cage of prefabricated secondary beam, and the lower part muscle sets up the lower part at the steel reinforcement cage of prefabricated secondary beam.

Furthermore, the number of the prefabricated main beams is one, the number of the prefabricated secondary beams is one, and the prefabricated secondary beams and the prefabricated main beams form a T-shaped structure.

Furthermore, the upper longitudinal rib is L-shaped, and the corners of the upper longitudinal rib are positioned in the reinforcement cage of the prefabricated main beam.

Furthermore, the number of the prefabricated main beams is one, the number of the prefabricated secondary beams is two, the two prefabricated secondary beams are oppositely arranged on two sides of the prefabricated main beam, and the two prefabricated secondary beams and the prefabricated main beam form a cross-shaped structure;

the connecting longitudinal ribs comprise first connecting longitudinal ribs and second connecting longitudinal ribs, one ends of the first connecting longitudinal ribs are connected with the reinforcement cage of the first prefabricated secondary beam, the other ends of the first connecting longitudinal ribs extend into the reinforcement cage of the prefabricated main beam through the connecting ports, one ends of the second connecting longitudinal ribs are connected with the reinforcement cage of the second prefabricated secondary beam, and the other ends of the second connecting longitudinal ribs extend into the reinforcement cage of the prefabricated main beam through the connecting ports; the other end of the first connecting longitudinal rib is connected with the other end of the second connecting longitudinal rib.

Furthermore, the first end of the longitudinal rib is connected with the end, far away from the prefabricated main beam, of the reinforcement cage of the first prefabricated secondary beam, and the second end of the longitudinal rib is connected with the end, far away from the prefabricated main beam, of the reinforcement cage of the second prefabricated secondary beam.

Further, the shell of the prefabricated main beam comprises a first shell and a second shell, wherein the first shell and the second shell are arranged at intervals, and the intervals form a connecting port.

Furthermore, the shell of the main beam is provided with a gap, and the gap forms a connecting port.

Furthermore, the column shell of the prefabricated main beam is provided with a jack which forms a connecting port.

Further, all cast in situ has the construction concrete in prefabricated girder and the prefabricated girder.

Further, the shell comprises a left side plate, a bottom plate and a right side plate which are connected in sequence; the reinforcement cage comprises a reinforcement mesh group and longitudinal bars arranged in the reinforcement mesh group, wherein the reinforcement mesh group comprises a plurality of reinforcement meshes which are sequentially arranged at intervals along the direction of the longitudinal bars;

the bulges comprise first bulges and second bulges, the first bulges are arranged on the lower side of the reinforcing mesh and connected with the bottom plate; the left side and the right side of the reinforcing mesh piece are provided with second bulges, the left side plate is connected with the second bulges on the left side of the reinforcing mesh piece, and the right side plate is connected with the second bulges on the right side of the reinforcing mesh piece.

In the connection node structure of the main beam and the secondary beam, the connector exposes the main beam reinforcement cage at the corresponding position, the prefabricated main beam and the prefabricated secondary beam are transported to a construction site, and one end of the prefabricated secondary beam is close to one side wall of the main beam shell after being hoisted and positioned; connect the one end and the secondary beam steel reinforcement cage of indulging the muscle and be connected, the other end stretches into through the connector and exposes in the girder steel reinforcement cage outside to with secondary beam steel reinforcement cage and girder steel reinforcement cage tie, and then with secondary beam and girder connection, the later stage is watered construction concrete and can be accomplished the complete connection of girder and secondary beam. This connection structure of girder and secondary beam is simple, need not to tie up a large amount of reinforcing bars in the work progress admittedly, and the work progress is simple to can improve the efficiency of construction, save construction cost.

In addition, when the concrete is cast in situ, the shells of the prefabricated main beam and the prefabricated secondary beam can be used as a template, namely, the cast-in-situ can be realized without supporting the template, the supporting modulus is greatly reduced, the construction steps are simplified, and the construction efficiency is improved. The precast beam adopts the form of a shell, so that the whole weight is light, and the transportation and the hoisting are convenient.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a connection node structure of a secondary beam and a main beam according to a first embodiment of the present invention;

FIG. 2 is a sectional view A-A of the connection node structure of the sub-girder and the main girder shown in FIG. 1;

fig. 3 is a schematic structural view of a connection node structure of a secondary beam and a main beam according to a second embodiment of the present invention;

FIG. 4 is a sectional view A-A of the connection node structure of the sub-girder and the main girder shown in FIG. 3;

fig. 5 is a schematic structural view of a connection node structure of a secondary beam and a main beam according to a third embodiment of the present invention;

FIG. 6 is a sectional view A-A of the connection node structure of the secondary beam and the primary beam shown in FIG. 5;

fig. 7 is a schematic structural view of a connection node structure of a secondary beam and a main beam according to a fourth embodiment of the present invention;

FIG. 8 is a sectional view A-A of the connection node structure of the secondary beam and the primary beam shown in FIG. 7;

fig. 9 is a schematic structural view of a connection node structure of a secondary beam and a main beam according to a fifth embodiment of the present invention;

FIG. 10 is a sectional view A-A of the connection node structure of the secondary beam and the primary beam shown in FIG. 9;

fig. 11 is a schematic structural view of a connection node structure of a secondary beam and a main beam according to a sixth embodiment of the present invention;

FIG. 12 is a sectional view A-A of the connection node structure of the secondary beam and the primary beam shown in FIG. 11;

FIG. 13 is a schematic structural view of a prefabricated main beam in the connection node structure of the secondary beam and the main beam shown in FIG. 1;

fig. 14 is a structural view illustrating a prefabricated sub-beam in the connection node structure of the sub-beam and the main beam shown in fig. 1;

fig. 15 is a schematic structural view of the prefabricated main beam in-situ concrete pouring in the connection node structure of the secondary beam and the main beam shown in fig. 1.

In the figure: 10-prefabricating a main beam; 11-girder left side plate; 12-girder right side plate; 13-main beam floor; 14-main beam longitudinal ribs; 15-girder reinforcing mesh; 151-main beam first rib; 152-main beam second ribs; 153-main beam first projection; 154-main beam second projection; 101-a first housing; 102-a second housing;

30-prefabricating secondary beams; 31-secondary beam left side plate; 32-secondary beam right side plate; 33-secondary beam floor; 34-a secondary beam first longitudinal bar; 35-secondary beam reinforcing mesh sheets; 351-a secondary beam first rib; 352-secondary beam second web; 353 — secondary beam first projection; 354-secondary beam second projection;

100-construction of concrete; 200-connection port; 300-connecting longitudinal bars; 210-interval; 220-opening; 230-a jack; 310-upper ribs; 320-lower rib.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In the description of the present invention, it should be noted that the terms "left", "right", "up" and "down" are used for convenience of description, and the upper part is OA in the drawing, and the lower part OB left is OC right is OD, with reference to the drawings.

As shown in fig. 1-15, the utility model provides a connected node structure of secondary beam and girder, include: the precast beam, the connecting port 200 and the connecting longitudinal bar 300; the precast beams comprise precast main beams 10 and precast secondary beams 30; the precast beam comprises a shell, a bulge and a reinforcement cage, wherein the reinforcement cage is positioned in the shell, the bulge is connected between the shell and the reinforcement cage, namely the bulge is arranged on the reinforcement cage, and the shell is connected with the bulge so as to wrap the shell outside the reinforcement cage; one end of the prefabricated secondary beam 30 is vertically arranged with the middle part of the prefabricated main beam 10; the middle part of the prefabricated main beam 10 is provided with a connector 200, one end of the connecting longitudinal bar 300 is connected with the reinforcement cage of the prefabricated secondary beam 30, and the other end of the connecting longitudinal bar extends into the reinforcement cage of the prefabricated main beam 10 through the connector 200.

It should be noted that, for convenience of description, the reinforcement cage of the prefabricated main beam 10 is a main beam reinforcement cage, the shell of the prefabricated main beam 10 is a main beam shell, and the protrusion of the prefabricated main beam 10 is a main beam protrusion; the reinforcement cage of the prefabricated secondary beam 30 is a secondary beam reinforcement cage, the shell of the prefabricated secondary beam 30 is a secondary beam shell, and the protrusion of the prefabricated secondary beam 30 is a secondary beam protrusion.

In this embodiment, the connection port 200 exposes the main beam reinforcement cage at the corresponding position, transports the prefabricated main beam 10 and the prefabricated secondary beam 30 to the construction site, and after hoisting and positioning, closely attaches one end of the prefabricated secondary beam 30 to one side wall of the main beam shell; connect the one end and the secondary beam steel reinforcement cage of indulging muscle 300 and be connected, the other end stretches into through connector 200 and exposes in the girder steel reinforcement cage outside to with secondary beam steel reinforcement cage and girder steel reinforcement cage tie, and then with secondary beam and girder connection, the complete connection of girder and secondary beam can be accomplished to later stage watering construction concrete. This connection structure of girder and secondary beam is simple, need not to tie up a large amount of reinforcing bars in the work progress admittedly, and the work progress is simple to can improve the efficiency of construction, save construction cost.

In addition, when the concrete is cast in situ, the shells of the prefabricated main beam 10 and the prefabricated secondary beam 30 can be used as a template, namely, the cast-in-situ can be realized without supporting the template, the supporting modulus is greatly reduced, the construction steps are simplified, and the construction efficiency is improved. The precast beam adopts the form of a shell, so that the whole weight is light, and the transportation and the hoisting are convenient.

When the relative position between the end of the prefabricated secondary beam 30 and the prefabricated main beam 10 is fixed, the construction concrete can be poured into the prefabricated main beam 10 and the prefabricated secondary beam 30 in situ. Can be poured together with other components. The secondary beam that this embodiment provided and the connected node structure atress of tip girder are reasonable, and the wholeness can be equal with ordinary cast in situ concrete structure, have safe and reliable, simplify the construction, practice thrift the consumptive material, reduce characteristics such as raise dust and construction waste, have stronger market competition.

As shown in fig. 13 and 15, the main beam shell includes a main beam left side plate 11, a main beam bottom plate 13, and a main beam right side plate 12, which are connected in sequence; the main girder steel reinforcement cage comprises 15 groups of main girder steel reinforcement meshes and main girder longitudinal reinforcements arranged in the 15 groups of main girder steel reinforcement meshes, and the 15 groups of main girder steel reinforcement meshes comprise a plurality of main girder steel reinforcement meshes 15 which are sequentially arranged at intervals along the direction of the main girder longitudinal reinforcements; the main beam protrusions comprise a main beam first protrusion 153 and a main beam second protrusion 154, the main beam first protrusion 153 is arranged on the lower side of the main beam reinforcing mesh sheet 15, and the main beam first protrusion 153 is connected with the main beam bottom plate 13; the left side and the right side of the main beam reinforcing mesh sheet 15 are provided with main beam second protrusions 154, the main beam left side plate 11 is connected with the main beam second protrusions 154 on the left side of the main beam reinforcing mesh sheet 15, and the main beam right side plate 12 is connected with the main beam second protrusions 154 on the right side of the main beam reinforcing mesh sheet 15.

In this embodiment, the girder shell is including girder left side board 11, girder bottom plate 13 and girder right side board 12 that connect gradually, then the both ends and the upside opening of girder shell make things convenient for the overlap joint floor, conveniently pours the construction concrete into.

As shown in fig. 13, on the basis of the above embodiment, further, the upper side of the left side plate 11 of the main beam and the right side of the main beam do not exceed the upper side of the reinforcing mesh.

In the embodiment, the upper side edge of the left side plate 11 of the main beam does not exceed the upper side of the main beam steel bar mesh 15 group, and the left side of the upper side of the steel bar cage positioned in the main beam shell is exposed outside; the upper side of the girder right side plate 12 is not more than the upper side of the girder reinforcing mesh 15 group, and the right side of the upper side of the girder reinforcing cage in the girder shell is also exposed outside, so that the floor slabs are further conveniently lapped.

As shown in fig. 13, in addition to the above embodiment, the girder reinforcing mesh sheet 15 further includes a girder first rib 151 disposed oppositely, and a plurality of girder second ribs 152 sequentially disposed at intervals along the extending direction of the girder first rib 151; the left ends of the second main beam ribs 152 extend out of one first main beam rib 151, and the right ends of the second main beam ribs 152 extend out of the other first main beam rib 151; the lower ends of the first main beam ribs 151 extend out of all the second main beam ribs 152; a main beam first protrusion 153 is arranged at the lower end of the main beam first rib 151, the cross-sectional dimension of the main beam first protrusion 153 is larger than that of the main beam first rib 151, and the main beam first protrusion 153 is connected with the main beam bottom plate 13; the left end and the right end of the second main beam ribs 152 are provided with second main beam protrusions 154, the cross-sectional dimension of the second main beam protrusions 154 is larger than that of the second main beam ribs 152, the second main beam protrusions 154 at the left end of the second main beam ribs 152 are connected with the left main beam plate 11, and the second main beam protrusions 154 at the right end of the second main beam ribs 152 are connected with the right main beam plate 12.

In this embodiment, the left side of girder second muscle 152 stretches out the end and is connected with girder left side board 11, the right side of girder second muscle 152 stretches out the end and is connected with girder right side board 12, the end that stretches out down of girder bottom plate 13 is connected with girder bottom plate 13, the tip through girder reinforcing bar net piece 15 realizes being connected with the girder shell, simple and convenient easy construction, need not to adopt and seals the stirrup, thereby save a large amount of steel, need not to bend and tie up admittedly, be fit for batch production, the industrialization degree is high.

A first main beam protrusion 153 is disposed at the lower end of the first main beam rib 151, and the cross-sectional size of the first main beam protrusion is larger than that of the first main beam rib 151. The left end and the right end of the second main beam ribs 152 are provided with second main beam protrusions 154, and the cross-sectional dimension of the second main beam protrusions 154 is larger than that of the second main beam ribs 152.

The first main beam protrusion 153 and the second main beam protrusion 154 have various structures, such as: can be plate-shaped, rod-shaped or column-shaped; when the first main beam protrusion 153 or the second main beam protrusion 154 is rod-shaped, it may be a straight rod, a curved rod, or an angle with the rib, and the first main beam protrusion 153 or the second main beam protrusion 154 may further have a plurality of barbs or small protrusions.

Preferably, the first main beam protrusion 153 is formed by directly upsetting the lower end of the first main beam rib 151, the second main beam protrusion 154 is formed by directly upsetting the end of the second main beam rib 152, specifically, the second main beam protrusion 154 at the left end of the second main beam rib 152 is formed by directly upsetting the left end of the second main beam rib 152, and the second main beam protrusion 154 at the right end of the second main beam rib 152 is formed by directly upsetting the right end of the second main beam rib 152.

Preferably, the first main beam protrusion 153 and the first main beam rib 151 are T-shaped, and the second main beam protrusion 154 and the second main beam rib 152 are T-shaped.

The first main beam protrusion 153 and the second main beam protrusion 154 may be one or more.

In this embodiment, the first protrusion 153 of the main beam can improve the strength of the connection between the first rib 151 of the main beam and the main beam bottom plate 13, the second protrusion 154 of the main beam can improve the strength of the connection between the second rib 152 of the main beam and the main beam side plate, especially, when the main beam shell is precast by concrete, the first protrusion 153 of the main beam and the second protrusion 154 of the main beam stretch into the concrete like root hairs, thereby improving the anchoring force of the main beam reinforcing mesh 15 groups and the concrete, thereby making the two firmer, and further making the later-stage pouring construction concrete 100 more convenient.

As shown in fig. 14, the secondary beam housing includes a secondary beam left side plate 31, a secondary beam bottom plate 33, and a secondary beam right side plate 32 connected in sequence; the secondary beam reinforcing mesh 35 group comprises a plurality of secondary beam reinforcing mesh 35 which are sequentially arranged at intervals along the longitudinal bar direction of the secondary beam; the secondary beam bulge comprises a secondary beam first bulge 353 and a secondary beam second bulge 354, the secondary beam first bulge 353 is arranged on the lower side of the secondary beam reinforcing mesh sheet 35, and the secondary beam first bulge 353 is connected with the secondary beam bottom plate 33; the left side and the right side of the secondary beam reinforcing mesh sheet 35 are provided with secondary beam second protrusions 354, the secondary beam left side plate 31 is connected with the secondary beam second protrusions 354 on the left side of the secondary beam reinforcing mesh sheet 35, and the secondary beam right side plate 32 is connected with the secondary beam second protrusions 354 on the right side of the secondary beam reinforcing mesh sheet 35.

In this embodiment, the secondary beam shell includes a left side plate, a bottom plate, and a right side plate that are connected in sequence; the two ends and the upper side of the shell of the secondary beam are both opened; in the use, the length direction level of roof beam is placed, and the bottom plate is located the below, does not set up the convenient construction concrete of epipleural 100 and floor overlap joint, can also avoid increasing precast beam's weight.

The upper side of the left side plate of the secondary beam and the right side of the secondary beam do not exceed the upper side of the reinforcing mesh.

In this embodiment, the upper side of the left side plate of the secondary beam does not exceed the upper side of the reinforcing mesh sheet group of the secondary beam, and the left side of the upper side of the reinforcement cage in the shell of the secondary beam is exposed outside; the upper side edge of the right side plate of the secondary beam does not exceed the upper side of the reinforcing mesh sheet group of the secondary beam, and the right side of the upper side of the reinforcing cage of the secondary beam, which is positioned in the shell of the secondary beam, is also exposed outside, so that the floor slabs are conveniently lapped and poured.

The secondary beam reinforcing mesh 35 comprises a primary beam first rib 351 arranged oppositely, and a plurality of secondary beam second ribs 352 arranged at intervals in sequence along the extension direction of the primary beam first rib 351; a secondary beam first bulge 353 is arranged at the lower end of the secondary beam first rib 351, the sectional dimension of the secondary beam first bulge 353 is larger than that of the secondary beam first rib 351, and the secondary beam first bulge 353 is connected with the secondary beam bottom plate 33; the left end and the right end of the secondary beam second ribs 352 are provided with secondary beam second protrusions 354, the sectional dimension of each secondary beam second protrusion 354 is larger than that of the secondary beam second rib 352, the secondary beam second protrusions 354 at the left end of the secondary beam second ribs 352 are connected with the secondary beam left side plate 31, and the secondary beam second protrusions 354 at the right end of the secondary beam second ribs 352 are connected with the secondary beam right side plate 32.

In this embodiment, the left side of secondary beam second muscle 352 stretches out the end and is connected with secondary beam left side board 31, the right side of secondary beam second muscle 352 stretches out the end and is connected with secondary beam right side board 32, the end that stretches out down of secondary beam bottom plate 33 is connected with secondary beam bottom plate 33, the tip through secondary beam reinforcing bar net piece 35 realizes being connected with the secondary beam shell, simple and convenient easy construction, need not to adopt and seals the stirrup, thereby save a large amount of steel, need not to bend and tie up firmly, be fit for batch production, and the industrialization degree is high.

Wherein, the lower extreme of the first muscle 351 of secondary beam is provided with the first arch 353 of secondary beam, and the bellied cross sectional dimension of a secondary beam is greater than the cross sectional dimension of the first muscle 351 of secondary beam. The left end and the right end of the plurality of secondary beam second ribs 352 are provided with secondary beam second protrusions 354, and the sectional size of the secondary beam second protrusions 354 is larger than that of the secondary beam second ribs 352.

The structure of the secondary beam first projection 353 and the secondary beam second projection 354 can be various, for example: can be plate-shaped, rod-shaped or column-shaped; when the first secondary beam protrusion 353 or the second secondary beam protrusion 354 is in a rod shape, the first secondary beam protrusion 353 or the second secondary beam protrusion 354 may be a straight rod or a curved rod, and may be disposed at an angle with the rib, and a plurality of barbs or small-protrusion first secondary beam protrusions 353 may be further disposed on the first secondary beam protrusion 353 or the second secondary beam protrusion 354.

Preferably, the first secondary beam protrusion 353 is formed by directly upsetting the lower end of the first secondary beam rib 351, the second secondary beam protrusion 354 is formed by directly upsetting the end of the second secondary beam rib 352, specifically, the second secondary beam protrusion 354 at the left end of the second secondary beam rib 352 is formed by directly upsetting the left end of the second secondary beam rib 352, and the second secondary beam protrusion 354 at the right end of the second secondary beam rib 352 is formed by directly upsetting the right end of the second secondary beam rib 352, so that the secondary beam protrusion is easy to machine, and the protrusion and the rib are firmly connected.

Preferably, the first protrusion 353 of the secondary beam and the first rib 351 of the secondary beam are T-shaped, and the second protrusion 354 of the secondary beam and the second rib 352 of the secondary beam are T-shaped, so that the structure is simple.

The secondary beam first projection 353 and the secondary beam second projection 354 may be one or more.

In this embodiment, the first arch 353 of secondary beam can improve the intensity that the first muscle 351 of secondary beam is connected with secondary beam bottom plate 33, the second arch 354 of secondary beam can improve the intensity that the second muscle 352 of secondary beam is connected with the secondary beam curb plate, especially when the secondary beam shell adopts the concrete prefabrication, the first arch 353 of secondary beam and the second arch 354 of secondary beam stretch into in the concrete like the root hair, thereby improve the anchor power of 35 groups of secondary beam reinforcing mesh piece and concrete, thereby make more firm between them, and then make the later stage pour into water construction concrete 100 more convenient.

The material of secondary beam shell and the material of main beam shell can be multiple, for example: wood, plastic or metal plates, etc.

The protruding connected mode with the girder shell of girder and the protruding connected mode with the secondary beam shell of secondary beam can all be multiple, for example: bound by a wire or the like, or the protrusion is inserted into the inside of the case without protruding outside thereof.

Preferably, the prefabricated concrete beam is prefabricated by concrete, the protrusions are embedded in the shell, namely the concrete is prefabricated in a factory, and thus the prefabricated beam and the construction concrete poured in situ after the prefabricated beam reaches a construction site can be integrated, so that the beam is uniform in material, few in variety and regular in structure.

There are various connection methods for connecting the longitudinal bar 300 and the secondary beam reinforcement cage, for example: iron wire binding or rebar fastener connection or lap joint, etc.

Preferably, the one end of connecting the longitudinal bar is located the girder steel reinforcement cage, and the other end overlap joint just extends to the one end of keeping away from prefabricated girder of secondary beam steel reinforcement cage in the secondary beam steel reinforcement cage, and easy to assemble can accomplish behind the cast in situ construction concrete in the later stage, makes the roof beam that forms have sufficient intensity.

The connecting longitudinal rib 300 includes an upper connecting longitudinal rib 310 and a lower connecting longitudinal rib 320, and the number of the upper connecting longitudinal rib and the lower connecting longitudinal rib may be one or more. Meanwhile, the upper connecting longitudinal rib 310 and the lower connecting longitudinal rib 320 are arranged, so that the strength of the connecting joint can be further improved, and the strength of a beam formed by in-situ pouring is guaranteed.

Of course, multiple layers of middle connecting longitudinal ribs can be arranged between the upper connecting longitudinal rib and the lower connecting longitudinal rib.

The following describes the structural form of the connection node between the main beam and the secondary beam in a specific embodiment:

the first embodiment is as follows:

as shown in fig. 1 and 2, the number of the prefabricated main beams is one, the number of the prefabricated secondary beams is one, and the prefabricated secondary beams and the prefabricated main beams form a T-shaped structure. The girder shell includes first casing 101 and the second casing 102 that sets up along girder steel reinforcement cage's extending direction interval, connection mouth 200 is the interval 210 between first casing 101 and the second casing 102, the girder shell is at the junction disconnection of prefabricated girder and prefabricated secondary beam promptly, interval 210 between first casing 101 and the second casing 102 is not less than prefabricated secondary beam's cross sectional dimension, so that the one end of two prefabricated secondary beams 30 can closely the butt with prefabricated girder 10, girder steel reinforcement cage keeps intact, connect the one end of indulging the muscle and alternate in exposed girder steel reinforcement cage, the other end of connecting to indulge the muscle is connected with the one end of secondary beam steel reinforcement cage.

In the process of producing the prefabricated main beam, a mould is adopted to reserve an interval 210 for the main beam shell; and the shell of the girder can be cut after the prefabricated girder is produced.

When connecting indulge the muscle and include that upper portion is connected to indulge muscle 310 and lower part and connect and indulge muscle 320, upper portion indulge muscle 310 and be L shape, just the corner of muscle is indulged in upper portion is located in the girder steel reinforcement cage, then can increase the upper portion and indulge muscle 310 and construction concrete 100's anchor power.

Of course, the lower longitudinal rib 320 may have an L-shape. Protrusions, barbs or the like may also be provided on both to increase the anchoring force with the construction concrete 100.

Example two:

as shown in fig. 3 and 4, the number of the prefabricated main beams is one, the number of the prefabricated sub-beams is one, and the prefabricated sub-beams and the prefabricated main beams form a T-shaped structure. The main beam shell is provided with a notch 220, the notch 220 forms a connecting port 200, the main beam reinforcement cage at the corresponding position is exposed, one end of the connecting longitudinal rib penetrates through the notch 220 and extends into the main beam reinforcement cage, and the other end of the connecting longitudinal rib is connected with one end of the secondary beam reinforcement cage.

The opening 220 is arranged on the prefabricated main beam 10, the opening 220 is arranged on the main beam shell to form the connecting port 200, the size of the opening 220 is not smaller than the section size of the prefabricated secondary beam 30, and the opening 220 can be reserved on the main beam shell by adopting a mold in the process of producing the prefabricated main beam 10; or after the prefabricated main beam 10 is produced, the main beam shell is cut.

Example three:

as shown in fig. 5 and 6, the number of the prefabricated main beams is one, the number of the prefabricated sub-beams is one, and the prefabricated sub-beams and the prefabricated main beams form a T-shaped structure. The side wall of the main beam shell close to the prefabricated secondary beam 30 is provided with a jack 230, the jack 230 forms a connection port 200, one end of a longitudinal connecting rib 300 penetrates through the jack 230 and extends into the main beam reinforcement cage, and the other end of the longitudinal connecting rib 300 is connected with one end of the secondary beam reinforcement cage.

In this embodiment, the insertion hole 230 is disposed on the main beam shell, so that the connecting longitudinal bar 300 can pass through the insertion hole 230 from the outside of the main beam shell to enter the main beam reinforcement cage. In the process of producing the prefabricated main beam 10, the main beam shell is reserved with the jack 230 by adopting a mould; or after the prefabricated main beam 10 is produced, drilling holes in the main beam shell.

Girder shell is including girder left side board 11, girder bottom plate 13 and girder right side board 12 that connect gradually, and the upside of girder left side board 11 and girder right side do not all exceed the upside of steel reinforcement cage, and then the muscle is indulged on upper portion can directly put into the girder steel reinforcement cage, and then muscle 310 can be set to L shape is indulged on upper portion, just the corner that muscle was indulged on upper portion is located in the girder steel reinforcement cage, then can increase the anchor power that muscle 310 and construction concrete 100 are indulged on upper portion.

The lower longitudinal ribs 320 penetrate into the main beam reinforcement cage through the jacks on the main beam shell.

Example four:

as shown in fig. 7 and 8, the number of the prefabricated main beams is one, the number of the prefabricated secondary beams is two, the two prefabricated secondary beams are oppositely arranged on two sides of the prefabricated main beam, and the two prefabricated secondary beams and the prefabricated main beam form a cross-shaped structure; the girder shell comprises a first shell 101 and a second shell 102 which are arranged at intervals along the extending direction of the girder steel reinforcement cage, the interval 210 forms a connecting port 200, and the girder steel reinforcement cage at the interval 210 of the first shell 101 and the second shell 102 is exposed.

The connecting longitudinal ribs comprise first connecting longitudinal ribs and second connecting longitudinal ribs, one end of each first connecting longitudinal rib is connected with the reinforcement cage of the first prefabricated secondary beam, the other end of each first connecting longitudinal rib extends into the reinforcement cage of the prefabricated main beam through the connecting port 200, one end of each second connecting longitudinal rib is connected with the reinforcement cage of the second prefabricated secondary beam, and the other end of each second connecting longitudinal rib extends into the reinforcement cage of the prefabricated main beam through the connecting port 200; the other end of the first connecting longitudinal rib is connected with the other end of the second connecting longitudinal rib, such as welding or integral forming. That is, the muscle is indulged in first connection and the muscle is indulged in the second connection and is formed to connect and link up and indulge the muscle, connects to link up and indulge muscle 300 and wear to establish in the girder steel reinforcement cage, connects to link up and indulge the one end of muscle 300 and be connected with a secondary beam steel reinforcement cage, and the other end is connected with another secondary beam steel reinforcement cage.

In this embodiment, the main beam shell includes the first shell 101 and the second shell 102 that set up along the extending direction interval of main beam steel reinforcement cage, the main beam steel reinforcement cage of the interval 210 department of first shell 101 and second shell 102 exposes, namely the main beam shell breaks away at the junction of prefabricated main beam and prefabricated secondary beam, the interval 210 between first shell 101 and second shell 102 is not less than the cross sectional dimension of prefabricated secondary beam to make the one end of two prefabricated secondary beams 30 can closely butt with prefabricated main beam 10, main beam steel reinforcement cage keeps intact.

Optionally, the first connecting longitudinal rib is connected with one end, far away from the prefabricated main beam, of the reinforcement cage of the first prefabricated secondary beam, and the second connecting longitudinal rib is connected with one end, far away from the prefabricated main beam, of the reinforcement cage of the second prefabricated secondary beam. That is, one end of the connecting through longitudinal bar is connected to one end of the prefabricated secondary beam far away from the prefabricated main beam, and the other end of the connecting through longitudinal bar passes through the connecting port 200 and is connected to one end of the other prefabricated secondary beam far away from the prefabricated main beam.

In this embodiment, one end of the through longitudinal rib is lapped on one end of one prefabricated secondary beam, which is far away from the prefabricated main beam, and the other end of the through longitudinal rib is lapped on one end of the other prefabricated secondary beam, which is far away from the prefabricated main beam. And later-stage concrete is cast in situ. Connect to link up and indulge the muscle setting conveniently, can further improve the efficiency of construction, can ensure the intensity of roof beam.

Example five:

as shown in fig. 9 and 10, the number of the prefabricated main beams is one, the number of the prefabricated secondary beams is two, the two prefabricated secondary beams are oppositely arranged on two sides of the prefabricated main beam, and the two prefabricated secondary beams and the prefabricated main beam form a cross-shaped structure. The girder shell is provided with a notch 220, the notch 220 forms a connecting port 200, and the girder reinforcement cage at the corresponding position is exposed.

In this embodiment, the main beam shell is provided with a notch 220 to form the connection port 200, the size of the notch 220 is not smaller than the size of the cross section of the prefabricated secondary beam, and the notch 220 can be reserved on the main beam shell by using a mold in the process of producing the prefabricated main beam; or after the prefabricated main beam is produced, cutting the main beam shell.

The opening 220 includes two openings at least, and two openings set up relatively to make the connection link up indulge the muscle and place behind opening 220, connect and link up the both ends of indulging the muscle and can stretch out to be connected with two secondary beam steel reinforcement cages respectively.

Example six:

as shown in fig. 11 and 12, the number of the prefabricated main beams is one, the number of the prefabricated secondary beams is two, the two prefabricated secondary beams are oppositely arranged on two sides of the prefabricated main beam, and the two prefabricated secondary beams and the prefabricated main beam form a cross-shaped structure. Jacks 230 are arranged at the set positions of the left side plate and the right side plate of the main beam shell, and the jacks 230 form a connecting port 200.

The muscle is indulged in the connection includes that first connection is indulged muscle and second connection and is indulged the muscle, and the one end that the muscle was indulged in first connection is connected with the steel reinforcement cage of first prefabricated secondary beam, and the other end stretches into in the steel reinforcement cage of prefabricated girder through left side jack 230, and the second is connected the one end of indulging the muscle and is connected with the steel reinforcement cage of the prefabricated secondary beam of second, and the other end passes in right side jack 230 stretches into the steel reinforcement cage of prefabricated girder, and the muscle is indulged in first connection and is connected with the second and indulge the muscle and be connected. Muscle and second connection are indulged in first connection and are indulged the muscle and form and link up and indulge the muscle, link up and indulge the muscle setting in the girder steel reinforcement cage of relevant position, link up and indulge the one end of muscle and pass left side jack 230 and be connected with left secondary beam steel reinforcement cage, and the other end passes right side jack 230 and is connected with right side secondary beam steel reinforcement cage.

In this embodiment, the insertion holes 230 are formed in the left and right side plates of the main beam housing, so that the connecting longitudinal bars 300 can pass through the insertion holes 230 from the outside of the main beam housing to enter the main beam reinforcement cage. In the process of producing the prefabricated main beam 10, the main beam shell is reserved with the jack 230 by adopting a mould; or after the prefabricated main beam 10 is produced, drilling holes in the main beam shell.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a connected node structure of secondary beam and girder which characterized in that includes: the prefabricated beam, the connectors and the connecting longitudinal bars; the precast beams comprise precast main beams and precast secondary beams;

one end of the prefabricated secondary beam is perpendicular to the middle of the prefabricated main beam; the middle part of the prefabricated main beam is provided with the connecting port, one end of the connecting longitudinal rib is connected with the reinforcement cage of the prefabricated secondary beam, and the other end of the connecting longitudinal rib extends into the reinforcement cage of the prefabricated main beam through the connecting port.

2. The secondary beam to primary beam connection node structure of claim 1, wherein the connecting longitudinal ribs include upper ribs and lower ribs; the upper portion muscle sets up the upper portion of the steel reinforcement cage of prefabricated secondary beam, the lower part muscle sets up the lower part of the steel reinforcement cage of prefabricated secondary beam.

3. The connection node structure of the secondary beam and the main beam according to claim 2, wherein the number of the prefabricated main beams is one, the number of the prefabricated secondary beams is one, and the prefabricated secondary beams and the prefabricated main beams form a T-shaped structure.

4. The secondary beam to primary beam connection node structure of claim 3, wherein the upper tendon is L-shaped, and corners of the upper tendon are located within a reinforcement cage of the prefabricated primary beam.

5. The connection node structure of the secondary beam and the main beam according to claim 2, wherein the number of the prefabricated main beams is one, the number of the prefabricated secondary beams is two, the two prefabricated secondary beams are oppositely arranged on two sides of the prefabricated main beam, and the two prefabricated secondary beams and the prefabricated main beam form a cross-shaped structure;

6. The secondary beam and main beam connection node structure of claim 5, wherein the one end of the first longitudinal connecting bar is connected to an end of the reinforcement cage of the first prefabricated secondary beam, which is far away from the prefabricated main beam, and the one end of the second longitudinal connecting bar is connected to an end of the reinforcement cage of the second prefabricated secondary beam, which is far away from the prefabricated main beam.

7. The secondary beam to primary beam connection node structure of any one of claims 3 to 6, wherein the outer shell of the prefabricated primary beam comprises a first shell and a second shell, the first shell and the second shell being spaced apart, the spacing forming the connection port.

8. The secondary beam to primary beam connection node structure of any one of claims 3 to 6, wherein the shell of the primary beam is provided with a gap, and the gap forms the connection port.

9. The secondary beam and main beam connection node structure according to any one of claims 3 to 6, wherein a jack is arranged on a column shell of the prefabricated main beam, and the jack forms the connection port.

10. The connection node structure of the secondary beam and the primary beam according to claim 1, wherein the housing comprises a left side plate, a bottom plate and a right side plate which are connected in sequence; the reinforcement cage comprises a reinforcement mesh group and longitudinal bars arranged in the reinforcement mesh group, wherein the reinforcement mesh group comprises a plurality of reinforcement meshes which are sequentially arranged at intervals along the direction of the longitudinal bars;

the bulges comprise a first bulge and a second bulge, the first bulge is arranged on the lower side of the steel mesh, and the first bulge is connected with the bottom plate; the left side and the right side of the reinforcing mesh are provided with the second bulges, the left side plate is connected with the second bulges on the left side of the reinforcing mesh, and the right side plate is connected with the second bulges on the right side of the reinforcing mesh.