CN212866605U - Beam-end node - Google Patents

Beam-end node Download PDF

Info

Publication number
CN212866605U
CN212866605U CN202020546547.2U CN202020546547U CN212866605U CN 212866605 U CN212866605 U CN 212866605U CN 202020546547 U CN202020546547 U CN 202020546547U CN 212866605 U CN212866605 U CN 212866605U
Authority
CN
China
Prior art keywords
beam body
precast
node
plate
cast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202020546547.2U
Other languages
Chinese (zh)
Inventor
汪国良
徐军林
邢琼
徐政
潘�清
刘毅
朱丹
熊朝辉
向贤华
蒋晔
周兵
余行
张波
毛良根
付先进
江中华
李新军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Metro Group Co ltd
China Railway Siyuan Survey and Design Group Co Ltd
Original Assignee
Wuxi Metro Group Co ltd
China Railway Siyuan Survey and Design Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Metro Group Co ltd, China Railway Siyuan Survey and Design Group Co Ltd filed Critical Wuxi Metro Group Co ltd
Priority to CN202020546547.2U priority Critical patent/CN212866605U/en
Application granted granted Critical
Publication of CN212866605U publication Critical patent/CN212866605U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a beam end node, which comprises a precast beam body, wherein the precast beam body is internally provided with a precast area main rib, and also comprises a connecting section steel and a cast-in-place area main rib, and the cast-in-place area main rib is arranged above the precast beam body and is integrally bound with the precast area main rib, so that a beam body cast-in-place area is formed above the precast beam body; the connecting section steel comprises an embedded part embedded in the precast beam body, an assembly part extending out of the node end of the precast beam body so as to be assembled with the column end node, and a part to be solidified extending into the beam body cast-in-place area. The utility model provides a beam-ends node adopts pre-buried connection shaped steel on the precast beam body, through the assembly part and the assembly of post end node of this connection shaped steel, guarantees beam column node's connection quality and whole atress performance to form the cast-in-place district of beam body in precast beam body top, reach the purpose that improves bonding strength and atress performance between the plate girder and between the beam column.

Description

Beam-end node
Technical Field
The utility model belongs to the technical field of civil engineering, concretely relates to beam-ends node.
Background
The fabricated building is more and more widely applied due to the characteristics of relatively high construction efficiency, capability of reducing construction cost and the like. In an assembly type beam-column joint, the construction of the beam-column joint is generally realized by welding a prefabricated column and steel members on the prefabricated beam on site or connecting the prefabricated column and the prefabricated beam through bolts and the like, and because the stress condition of the beam-column joint area is relatively complex, especially under the conditions of earthquakes and the like, the load transmission among the beam-column joint area, the prefabricated column and the prefabricated beam is often inconsistent, so that the bearing capacity or the anti-seismic performance of the beam-column joint area is insufficient, and further the beam-column joint area is damaged or the building collapses and the like. Especially, for an underground structure with large bearing load, the beam column node assembly scheme is rare.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a beam-ends node can solve prior art's partial defect at least.
The utility model relates to a beam end node, which comprises a precast beam body, wherein the precast beam body is internally provided with a precast area main rib, and also comprises a connecting section steel and a cast-in-place area main rib, and the cast-in-place area main rib is arranged above the precast beam body and is integrally bound with the precast area main rib, so that a beam body cast-in-place area is formed above the precast beam body; the connecting section steel comprises an embedded part embedded in the precast beam body, an assembly part extending out of the node end of the precast beam body so as to be assembled with the column end node, and a part to be solidified extending into the beam body cast-in-place area.
As one embodiment, the connecting section steel comprises an upper wing plate and a lower wing plate, the plate surfaces of the upper wing plate and the lower wing plate are parallel to the horizontal direction and are connected through an intermediate plate; the upper wing plate part extends into the cast-in-place area of the beam body, the lower wing plate part is embedded in the precast beam body, and the rest of the upper wing plate and the rest of the lower wing plate extend out of the node end of the precast beam body.
As one embodiment, the middle plate includes a web, a plate surface of the web is parallel to the vertical direction and the longitudinal direction of the precast beam body, and the upper end and the lower end of the web are respectively connected with the upper wing plate and the lower wing plate.
In one embodiment, the web has a plurality of bolt holes formed therein.
As one embodiment, the middle plate further includes at least one rib plate, a plate surface of the rib plate is parallel to the vertical direction and the transverse direction of the precast beam body, and an upper end and a lower end of each rib plate are respectively connected with the upper wing plate and the lower wing plate.
In one embodiment, the rib is connected to the web.
In one embodiment, the upper panel surface of the upper wing panel and the lower panel surface of the lower wing panel are each provided with a plurality of beam body pegs.
As one embodiment, the beam-end node further comprises a supporting plate, the supporting plate is embedded in the precast beam body and connected with the assembling portion, and the precast area main reinforcement at the top of the precast beam body is at least partially supported on the supporting plate.
In one embodiment, the beam cast-in-place area has a lateral width smaller than that of the precast beam body.
As one embodiment, the joint end of the main reinforcement of the precast area at the bottom of the precast beam body and the joint end of the main reinforcement of the cast-in-place area are at least partially provided with a steel bar connector.
The utility model discloses following beneficial effect has at least:
the utility model provides a beam-ends node adopts pre-buried connection shaped steel on the precast beam body, through the assembly part and the assembly of post end node of this connection shaped steel, guarantees beam column node's connection quality and whole atress performance to form the cast-in-place district of beam body in precast beam body top, reach the purpose that improves between the plate beam and the bonding strength and the atress performance of beam column, especially provide better structure roof beam assembly scheme to the great underground structure of bearing load.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic front view of a beam end node (not cast-in-place concrete) provided in an embodiment of the present invention;
fig. 2 is a schematic side view of a beam end node (cast-in-place concrete) according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a beam-column joint provided in an embodiment of the present invention;
wherein: 1. beam-end node, 11, precast beam body, 111, bracket, 12, beam body cast-in-place area, 131, upper wing plate, 132, lower wing plate, 133, web, 134, ribbed slab, 14, supporting plate, 15, reinforcing steel bar connector, 161, precast area main rib, 162, cast-in-place area main rib, 17, beam body stud, 2, column-end node, 21, assembly section steel, 3, node cast-in-place area, 32 and cover plate.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a beam end node 1, including a precast beam body 11, where the precast beam body 11 has a precast area main rib 161 therein, and this beam end node 1 further includes a connection section steel and a cast-in-place area main rib 162, where the cast-in-place area main rib 162 is arranged above the precast beam body 11 and integrally hooped with the precast area main rib 161, so as to form a beam body cast-in-place area 12 above the precast beam body 11; the connecting section steel comprises an embedded part embedded in the precast beam body 11 in advance, an assembly part extending out of the node end of the precast beam body 11 so as to be assembled with the column end node 2, and a part to be consolidated extending into the beam body cast-in-place area 12.
Typically, the node end of the precast beam body 11 is the end thereof connected to the column end node 2 to constitute a beam-column node, typically one of the longitudinal ends of the precast beam body 11.
The connecting section steel can be directly connected with the column end node 2 to meet the design requirements of beam column nodes, such as direct welding with a steel pipe column; in another embodiment, the connecting section steel is assembled and connected with the column end node 2 to form the node cast-in-place area 3, for example, the assembled part of the connecting section steel is welded with the assembling section steel 21 on the column end node 2 or fixed by a high-strength bolt and then solidified by casting concrete, so as to meet the design requirement of the beam-column node.
The embedded part, the assembling part and the part to be solidified are preferably integrally formed so as to ensure the structural strength and the endurance performance of the connecting section steel. The part to be solidified can extend upwards from the top end of the embedded part; the assembly part can be extended outwards from the longitudinal end of the embedded part, or extended outwards from the longitudinal end of the embedded part and the longitudinal end of the part to be consolidated, preferably, the latter mode is adopted, namely, the assembly part is extended outwards from the longitudinal end of the embedded part and the part to be consolidated, especially, on the structural basis that the connection section steel is assembled and connected with the column end node 2 to form the node cast-in-place area 3, the node cast-in-place area 3 and the beam cast-in-place area 12 can be integrated, the consolidation area between the connection section steel and the cast-in-place concrete is correspondingly increased, and the connection quality and the integral stress performance of the beam column node can be further improved.
For the above-mentioned cast-in-place beam area 12, in one embodiment, the length thereof may be smaller than the length of the precast beam body 11, after the precast structural slab is supported on the precast beam body 11, concrete may be poured through the cast-in-place beam area 12 to be consolidated with the precast structural slab (the steel bar may be reserved at the corresponding end of the precast structural slab to extend into the cast-in-place beam area 12), so that the bonding strength and the seismic performance between the slab and the beam may be improved to a certain extent. In another embodiment, the length of the beam cast-in-place area 12 is the same as or approximately the same as that of the precast beam 11, the structural plates adopt a segmented precast structure and are placed on two lateral sides of the beam cast-in-place area 12, and then the beam cast-in-place area 12 is used for pouring concrete to realize mutual consolidation of the beam plates (that is, the lateral width of the beam cast-in-place area 12 is smaller than that of the precast beam 11, for example, brackets 111 are respectively formed on two lateral sides of the precast beam 11 to place the structural plates), so that the bonding strength and the stress performance between the plate beams can be effectively improved; or, for the cast-in-place structural slab, the beam cast-in-place area 12 may overlap with the cast-in-place area of the structural slab, so that the main rib 162 of the cast-in-place area and the part to be consolidated can be consolidated with the cast-in-place structural slab into an integral structure, and the bonding strength and the integral stress performance between the slab and the beam can be effectively improved.
In the beam end node 1 provided by the embodiment, the connecting section steel is embedded in the precast beam body 11, and the assembling part of the connecting section steel is assembled with the column end node 2, so that the connecting quality and the stress performance of the beam column node are ensured; and a beam cast-in-place area 12 is formed above the precast beam body 11, so that the aims of improving the bonding strength and the stress performance between plate beams and between beam columns are fulfilled.
Continuing the structure of the beam end node 1, as shown in fig. 1-3, the connecting section steel comprises an upper wing plate 131 and a lower wing plate 132, the plate surfaces of the upper wing plate 131 and the lower wing plate 132 are parallel to the horizontal direction and are connected through an intermediate plate; the upper wing plate 131 extends into the cast-in-place area 12 of the beam body, the lower wing plate 132 is embedded in the precast beam body 11, and the rest of the upper wing plate 131 and the rest of the lower wing plate 132 extend out of the joint end of the precast beam body 11. As will be readily appreciated, the embedded part includes the part of the lower wing plate 132 embedded in the precast beam body 11; the part to be consolidated comprises the part of the upper wing plate 131 extending into the cast-in-place area 12 of the beam body; the fitting portion includes the remaining plate of the upper wing plate 131 and the remaining plate of the lower wing plate 132. Preferably, the length of the lower wing plate 132 pre-embedded in the precast beam body 11 may be the same as the length of the precast beam body 11, and may be smaller than the length of the precast beam body 11. The length of the upper wing plate 131 extending into the beam cast-in-place region 12 is preferably the same as the length of the beam cast-in-place region 12.
The middle plate serves to connect the upper wing plate 131 and the lower wing plate 132, so that the upper wing plate 131 can be supported and positioned, and the consolidation area of the connection section steel and the concrete can be increased, thereby improving the structural strength of the beam end node 1. The longitudinal length of the middle plate may be the same as that of the above-described fitting portion, may partially extend into the precast beam body 11, or may be the same as that of the upper and lower wing plates 131 and 132. In one embodiment, as shown in fig. 1 and 2, the middle plate includes a web 133, a plate surface of the web 133 is parallel to the vertical direction and the longitudinal direction of the precast beam body 11, and the upper end and the lower end of the web 133 are respectively connected with the upper wing plate 131 and the lower wing plate 132, so that the vertical section of the connecting section steel is H-shaped or i-shaped. The web 133 is adopted to connect the upper wing plate 131 and the lower wing plate 132 into a whole to cooperatively bear force, so that the stress performance of the connecting section steel can be improved, and the connecting structure strength of the connecting section steel and the column end node 2 can be improved (for example, the welding area of the connecting section steel and the column end node 2 is increased), and the structural stability and the integral stress performance of the beam column node are effectively improved.
The web 133 includes an assembly section extending out of the joint end of the precast beam body 11, and a plurality of bolt holes are formed in the assembly section. Based on the structure, the web 133 and the assembly section steel 21 on the corresponding side column end node can be directly fixed through the high-strength bolt after being overlapped; in another embodiment, the web 133 and the assembly section steel 21 can be fixedly connected together through the cover plate 32 (the cover plate surface is parallel to the web 133 surface and covers both sides of the joint) and the high-strength bolt after the web 133 is abutted or welded with the assembly section steel 21 on the corresponding side pillar end node, so as to achieve the purpose of assembly connection.
Continuing the structure of the connecting section steel, as shown in fig. 1, the middle plate further includes at least one rib 134, the surface of the rib 134 is parallel to the vertical direction and the transverse direction of the precast beam body 11, and the upper end and the lower end of each rib 134 are respectively connected with the upper wing plate 131 and the lower wing plate 132. Through setting up floor 134, can further improve the structural strength who connects shaped steel to further improve beam column node's structural stability and atress performance. Further, the rib 134 is connected with the web 133, so that the structural strength of the connecting section steel and the cooperative stress performance among the plate bodies can be further improved. In an alternative embodiment, as shown in fig. 1, the rib 134 adjacent to the precast beam body 11 is concrete-bonded to the node end of the precast beam body 11, which may be completed when the precast beam body 11 is precast, on one hand, the connection structural strength between the precast beam body 11 and the connection section steel is enhanced, and thus the structural stability and the stress performance of the beam-column node may be improved, and on the other hand, the rib 134 may be used as a part of a formwork when the precast beam body 11 is produced, which is convenient for operation and can improve the quality of the precast beam body 11.
Further preferably, as shown in fig. 1, the upper plate surface of the upper wing plate 131 and the lower plate surface of the lower wing plate 132 are provided with a plurality of beam body pegs 17. The beam body stud 17 on the upper wing plate 131 can improve the consolidation effect between the upper wing plate 131 and the cast-in-place concrete of the beam body cast-in-place area 12; in the structure that the connection section steel is assembled and connected with the column end node 2 to form the node cast-in-place area 3, the plurality of beam body studs 17 are arranged on the upper wing plate 131 and the lower wing plate 132, so that the consolidation effect between the connection section steel and cast-in-place concrete in the node cast-in-place area 3 can be improved, and the structural stability and the stress performance of the beam column node are improved.
Further preferably, as shown in fig. 1 and 3, the beam-end node 1 further includes a supporting plate 14, the supporting plate 14 is embedded in the precast beam body 11 and connected to the assembling portion, and the precast-region main rib 161 at the top of the precast beam body 11 is at least partially supported on the supporting plate 14, for example, the precast-region main rib 161 at the top of the precast beam body 11 may be bound on the supporting plate 14 or welded to the supporting plate 14, which not only facilitates the arrangement of the precast-region main rib 161 and improves the mass of the precast beam body 11, but also can further increase the consolidation effect between the connecting section steel and the concrete in the precast beam body 11. The pallet 14 may be formed integrally with the connecting section or welded to the connecting section, such as the ribs 134 or webs 133 described above.
And (2) continuing the structure of the beam end node 1, as shown in fig. 1 and fig. 3, at least part of the node end of the main rib 161 of the prefabricated area at the bottom of the prefabricated beam body 11 and the node end of the main rib 162 of the cast-in-place area are provided with a steel bar connector 15, and the main rib in the cast-in-place area 3 of the node is connected through the steel bar connector 15, so that the operation is convenient, the quality of the reinforced concrete structure in the cast-in-place area 3 of the node can be improved, and the structural stability and the stress performance of the beam column node are improved.
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 (10)

1. The utility model provides a beam-ends node, includes the precast beam body, the precast beam is internal to have prefabricated district owner muscle, its characterized in that: the cast-in-place beam comprises a precast beam body and a cast-in-place area main rib, wherein the precast beam body is arranged on the precast beam body and is integrally bound with the precast area main rib, so that a beam body cast-in-place area is formed above the precast beam body; the connecting section steel comprises an embedded part embedded in the precast beam body, an assembly part extending out of the node end of the precast beam body so as to be assembled with the column end node, and a part to be solidified extending into the beam body cast-in-place area.
2. The beam-end node of claim 1, wherein: the connecting section steel comprises an upper wing plate and a lower wing plate, wherein the plate surfaces of the upper wing plate and the lower wing plate are parallel to the horizontal direction and are connected through an intermediate plate; the upper wing plate part extends into the cast-in-place area of the beam body, the lower wing plate part is embedded in the precast beam body, and the rest of the upper wing plate and the rest of the lower wing plate extend out of the node end of the precast beam body.
3. The beam-end node of claim 2, wherein: the intermediate lamella includes the web, the face of web be on a parallel with vertical and the vertical of precast beam body, both ends respectively with the web go up the pterygoid lamina with the pterygoid lamina is connected down.
4. The beam-end node of claim 3, wherein: the web includes stretches out to the assembly section outside the node end of the precast beam body, in a plurality of bolt holes have been seted up on the assembly section.
5. The beam-end node of claim 3, wherein: the middle plate further comprises at least one rib plate, the plate surface of each rib plate is parallel to the vertical direction and the transverse direction of the precast beam body, and the upper end and the lower end of each rib plate are respectively connected with the upper wing plate and the lower wing plate.
6. The beam-end node of claim 5, wherein: the rib plate is connected with the web plate.
7. The beam-end node of claim 2, wherein: the upper plate surface of the upper wing plate and the lower plate surface of the lower wing plate are both provided with a plurality of beam body studs.
8. The beam-end node of claim 1, wherein: the prefabricated beam body is characterized by further comprising a supporting plate, the supporting plate is embedded in the prefabricated beam body and connected with the assembling part, and the main reinforcement of the prefabricated area at the top of the prefabricated beam body is at least partially supported on the supporting plate.
9. The beam-end node of claim 1, wherein: and the transverse width of the beam cast-in-place area is smaller than that of the precast beam.
10. The beam-end node of claim 1, wherein: and at least part of the node end of the main reinforcement of the prefabricated area at the bottom of the prefabricated beam body and the node end of the main reinforcement of the cast-in-place area are provided with reinforcing steel bar connectors.
CN202020546547.2U 2020-04-14 2020-04-14 Beam-end node Active CN212866605U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020546547.2U CN212866605U (en) 2020-04-14 2020-04-14 Beam-end node

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020546547.2U CN212866605U (en) 2020-04-14 2020-04-14 Beam-end node

Publications (1)

Publication Number Publication Date
CN212866605U true CN212866605U (en) 2021-04-02

Family

ID=75186407

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020546547.2U Active CN212866605U (en) 2020-04-14 2020-04-14 Beam-end node

Country Status (1)

Country Link
CN (1) CN212866605U (en)

Similar Documents

Publication Publication Date Title
CN106869316A (en) The beam column edge of a wing is the group frame system and construction method of concrete filled steel tube
CN202925762U (en) Novel reinforced concrete superposed beam
CN103572873A (en) Assembled monolithic floor slab and construction method thereof
CN108049633A (en) A kind of precast concrete concrete frame joint construction method
CN214739012U (en) Assembled double-connecting-beam combined shear wall component and connecting structure thereof
CN206554385U (en) Combining structure for assembled architecture
CN212866605U (en) Beam-end node
CN112282207A (en) Combined beam, spliced beam and subway station
CN210086022U (en) Assembled single-box multi-chamber corrugated steel web box girder
CN107246109B (en) The frame and its construction method that real compound concrete filled steel tube coupled column combination beam is constituted
KR19980026153A (en) Connection structure for connecting concrete columns and steel beams in buildings
CN212453333U (en) Assembled combination beam and beam slab node
CN207017483U (en) The full precast shear wall structural system of regenerative steel skeleton
CN212506737U (en) Assembled beam column node
CN216156825U (en) Solve beam column connected node that sloping reinforcing bar anchored length is not enough in post
CN215484061U (en) Combined beam, spliced beam and subway station
KR100588195B1 (en) Steel - Concrete Hybrid Floor System for Slim Floor Using Improved Erection Girder
JP2002275833A (en) Continuing method of simple beam of existing bridge and continuous beam structure
CN111519758A (en) Assembled beam column node
CN210216718U (en) Primary and secondary beam joint suitable for prefabricated concrete structure
CN212426706U (en) Fully-prefabricated light large cantilever preflex combined bent cap beam structure
CN216338993U (en) Longitudinal joint for steel-UHPC (ultra high performance concrete) assembled pi-shaped combination beam
CN216740038U (en) Assembled beam column structure
CN214831844U (en) Assembled lacing wire steel pipe concrete composite beam
CN111502118A (en) Assembled combination beam and beam slab node

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant