CN210713194U - Rigidity-controllable assembled node structure - Google Patents

Rigidity-controllable assembled node structure Download PDF

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CN210713194U
CN210713194U CN201920791109.XU CN201920791109U CN210713194U CN 210713194 U CN210713194 U CN 210713194U CN 201920791109 U CN201920791109 U CN 201920791109U CN 210713194 U CN210713194 U CN 210713194U
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column
plate
node
frame
connecting member
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吴刚
薛弘毅
冯德成
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Southeast University
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Southeast University
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Abstract

The utility model relates to a rigidity-controllable assembled node structure, which comprises a column end steel node and a beam end steel node connected with the column end steel node; the column end steel node comprises a column end plate, wherein a column end connecting member is arranged on one side of the column end plate, a column end frame is arranged on the other side of the column end plate, the column end frame comprises a plurality of rectangular frames which are arranged in parallel, reinforcing steel bars can be inserted into the rectangular frames and connected with the reinforcing steel bars, and the column end plate can be connected to two ends of each rectangular frame; the beam-end steel node comprises a beam-end plate, a beam-end connecting member is arranged on one side of the beam-end plate and hinged to a column-end connecting member, and the beam-end connecting member can rotate vertically relative to the column-end connecting member. The utility model discloses can satisfy the antidetonation design requirement of "strong post weak beam", "strong node, weak anchor". The steel plate has better ductility and good energy consumption performance under the action of earthquake load, and fundamentally overcomes the defects that the rigid connection node is difficult to realize ductility deformation, poor recovery capability and small residual rigidity.

Description

Rigidity-controllable assembled node structure
Technical Field
The utility model relates to a civil engineering technical field specifically is a controllable assembled node construction of rigidity.
Background
The prefabricated building is a house which is formed by prefabricating part or all of components of the building in a factory, and then transporting the prefabricated building to a construction site to assemble the components in a reliable connection mode. In recent years, with the great progress in the housing industry, the demand for building industry has increased. The fabricated structure is gradually activated again in the building field with a series of advantages of low pollution, high construction efficiency and the like.
The node of the assembled structure is always the focus of the industrial research of buildings. Researchers study the stress performance, the anti-seismic energy consumption capacity, the ductility and the like of the assembled structure node through a large number of tests, and based on the study, the node is improved and created, so that the node with better performance is obtained.
The mainstream of the fabricated structure node focuses on the research on the fabricated node form and the stress and seismic performance thereof. The integrity of conventional wet joints is generally equivalent to cast-in-place structures, but the degree of assembly is too low to accommodate the development of building industrialization, while the integrity of conventional dry joints is too poor. In order to improve the seismic performance of the fabricated structure and adapt to the trend of building industrialization, at present, the nodes used in the fabricated frame structure are not pure nodes of a certain type, but the combination of certain nodes or some improvements on the original connection modes are made to enable the connection to have better performance.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the deficiencies in the prior art, the utility model provides a controllable assembled node structure of rigidity.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a rigidity-controllable fabricated node structure, which comprises a column end steel node and a beam end steel node connected with the column end steel node; the column end steel node comprises a column end plate, a column end connecting component is arranged on one side of the column end plate, a column end frame is arranged on the other side of the column end plate, the column end frame comprises a plurality of rectangular frames which are arranged in parallel, one end of each rectangular frame is connected with the column end plate, and the other end of each rectangular frame is suspended; the beam-end steel node comprises a beam-end plate, a beam-end connecting member is arranged on one side of the beam-end plate and hinged to a column-end connecting member, and the beam-end connecting member can rotate vertically relative to the column-end connecting member.
Further, column end connecting elements includes the vertical column end otic placode of locating the end plate middle part, beam-ends connecting elements includes the vertical beam-ends otic placode of locating the end plate middle part, and beam-ends otic placode passes through the cotter pin with the column end otic placode and is connected.
Further, the top and the below of column end otic placode all are provided with column end atress board, and the top and the below of beam-ends otic placode all set up beam-ends atress board, beam-ends atress board and column end atress board fixed connection.
Furthermore, the joint of the beam-end stress plate and the column-end stress plate is also provided with a stretch bending stress plate.
Further, a notch is arranged in the middle of the transverse edge of the stretch bending stress plate.
Furthermore, a reinforcing rib is arranged on the stretch bending stress plate.
Further, the beam end plate other end is provided with the beam end frame, and the beam end frame includes a plurality of parallel arrangement's rectangle frame, and each rectangle frame one end is connected with the beam end plate, and the reinforcement frame is connected to the other end.
Has the advantages that: the utility model discloses following beneficial effect has:
1. the full bolt connection is simple and convenient to install on site, easy to construct efficiently, capable of achieving full-dry connection, suitable for large-scale production and easy to achieve standardization and industrialization.
2. Can meet the seismic design requirements of 'strong column and weak beam', 'strong node and weak anchoring'. The semi-rigid node has better ductility and good energy consumption performance under the action of earthquake load, fundamentally overcomes the defects that the rigid connection node is difficult to realize ductility deformation, poor recovery capability and small residual rigidity, is very suitable for the earthquake-resistant design idea of 'strong node and weak anchoring' in China, and can adjust the distribution of the bending moment of the frame beam in the span and the beam end through the relative rotational rigidity of the node under the action of gravity load, thereby achieving the purpose of reducing the section size of the frame beam.
3. The steel has better deformation and energy consumption capability, and has obvious influence on improving the ductility and the seismic performance of the structure.
4. The rigidity is controllable, and the structural failure mode is that the beam-ends lean on the node part and change into articulated destruction by rigid coupling, removable bolt enhancement change rigidity, realize structural failure and restore.
5. The node calculation design is simple, convenient and easy to implement, and has strong practicability.
Drawings
FIG. 1 is a schematic structural view of a column end steel node;
FIG. 2 is a schematic structural view of a beam-end steel joint;
FIG. 3 is a schematic structural diagram of a stretch bending stress plate;
FIG. 4 is a schematic structural view of a beam-end steel joint and a column-end steel joint forming a beam-column joint internal steel member.
Fig. 5 is a schematic structural diagram of a concrete beam-column joint formed by the precast beams and the precast columns.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
A rigidity-controllable fabricated node structure as shown in fig. 1-5, comprising a column-end steel node 1, and a beam-end steel node 2 connected to the column-end steel node 1; the column end steel node 1 comprises a column end plate 11, wherein a column end connecting member is arranged on one side of the column end plate 11, and a column end frame is arranged on the other side of the column end plate and is used for supporting and connecting reinforcing steel bars of the precast concrete column 5; the column end frame comprises a plurality of rectangular frames 12 arranged in parallel, one end of each rectangular frame 12 is connected with the column end plate 11, the other end of each rectangular frame is suspended, the steel bars of the precast concrete columns 5 penetrate through the rectangular frames, and the column end frames can be spliced in a crossed mode, so that one concrete column is provided with a plurality of connection nodes of precast concrete beams 6 and is connected with the precast concrete beams 6. The beam-end steel node 2 comprises a beam-end plate 21, a beam-end connecting member is arranged on one side of the beam-end plate 21 and hinged to a column-end connecting member, and the beam-end connecting member can rotate vertically relative to the column-end connecting member. The beam-ends board 21 other end is provided with the beam-ends frame, and the beam-ends frame includes a plurality of parallel arrangement's rectangle frame 22, and each rectangle frame 22 one end is connected with beam-ends board 21, and reinforcing frame 23 is connected to the other end, and precast concrete beam 6's reinforcing bar tip and beam-ends board 21 welding, rectangle frame 22 are used for supporting and connecting precast concrete beam 6's reinforcing bar. The column end connecting component comprises a column end ear plate 13 which is vertically arranged at the middle part of the column end plate 11, the beam end connecting component comprises a beam end ear plate 24 which is vertically arranged at the middle part of the beam end plate 21, the beam end ear plate 24 is connected with the column end ear plate 13 through a pin bolt 3 to form an articulated structure, and when an earthquake occurs, the precast concrete beam 6 and the precast concrete column 5 can move relatively to consume earthquake energy. Column end otic placode 13's top and below all are provided with column end atress board 14, and the top and the below of beam end otic placode 24 all set up beam end atress board 25, beam end atress board 25 and column end atress board 14 fixed connection, the junction of beam end atress board 25 and column end atress board 14 still is provided with the atress board 4 that bends, the horizontal edge middle part of the atress board 4 that bends is provided with notch 41, and notch 41 is as the weak department of structure of the atress board 4 that bends for it is when receiving external force damage position is controllable. The stretch bending stress plate 4 is provided with a reinforcing rib 42 to ensure the stable structure. The rigidity of the joint is controllable by adopting the stretch bending stress plates with different thicknesses.
During construction, firstly, a column end steel node 1 and a beam end steel node 2, a prefabricated reinforced concrete beam and a prefabricated reinforced concrete column are manufactured, steel bars of the reinforced concrete beam are welded with the beam end steel node 2, and steel bars of the reinforced concrete column are welded with a column end rigid node; and then, assembling and connecting the precast concrete beam 6 and the precast concrete column 5, aligning the beam-end lug plate 24 and the column-end lug plate 13, inserting the pin bolt 3, and then connecting the beam-end stress plate 25, the column-end stress plate 14 and the tension-bending stress plate 4 by using bolts. I.e. to form a complete beam-column joint.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (7)

1. The utility model provides a controllable assembled node structure of rigidity which characterized in that: the beam-end steel node comprises a column-end steel node and a beam-end steel node connected with the column-end steel node; the column end steel node comprises a column end plate, a column end connecting component is arranged on one side of the column end plate, a column end frame is arranged on the other side of the column end plate, the column end frame comprises a plurality of rectangular frames which are arranged in parallel, one end of each rectangular frame is connected with the column end plate, and the other end of each rectangular frame is suspended; the beam-end steel node comprises a beam-end plate, a beam-end connecting member is arranged on one side of the beam-end plate and hinged to a column-end connecting member, and the beam-end connecting member can rotate vertically relative to the column-end connecting member.
2. The stiffness-controllable fabricated node construction of claim 1, wherein: the column end connecting component comprises a column end lug plate vertically arranged at the middle part of the column end plate, the beam end connecting component comprises a beam end lug plate vertically arranged at the middle part of the beam end plate, and the beam end lug plate is connected with the column end lug plate through a pin bolt.
3. The stiffness-controllable fabricated node construction of claim 2, wherein: column end stressed plates are arranged above and below the column end ear plates, beam end stressed plates are arranged above and below the beam end ear plates, and the beam end stressed plates are fixedly connected with the column end stressed plates.
4. The stiffness-controllable fabricated node construction of claim 3, wherein: and a tension-bending stress plate is arranged at the joint of the beam-end stress plate and the column-end stress plate.
5. The stiffness-controllable fabricated node construction of claim 4, wherein: and a notch is arranged in the middle of the transverse edge of the stretch bending stress plate.
6. The stiffness-controllable fabricated node construction of claim 4, wherein: and reinforcing ribs are arranged on the stretch bending stress plate.
7. The stiffness-controllable fabricated node construction of claim 1, wherein: the beam end plate other end is provided with the beam end frame, and the beam end frame includes a plurality of parallel arrangement's rectangle frame, and each rectangle frame one end is connected with the beam end plate, and the reinforcement frame is connected to the other end.
CN201920791109.XU 2019-05-29 2019-05-29 Rigidity-controllable assembled node structure Active CN210713194U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920791109.XU CN210713194U (en) 2019-05-29 2019-05-29 Rigidity-controllable assembled node structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920791109.XU CN210713194U (en) 2019-05-29 2019-05-29 Rigidity-controllable assembled node structure

Publications (1)

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CN210713194U true CN210713194U (en) 2020-06-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110241914A (en) * 2019-05-29 2019-09-17 东南大学 The controllable assembling type node construction of rigidity and its construction method
CN112538898A (en) * 2020-12-19 2021-03-23 兰州理工大学 Self-resetting shearing-constraint buckling damage controllable assembly type beam-column joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110241914A (en) * 2019-05-29 2019-09-17 东南大学 The controllable assembling type node construction of rigidity and its construction method
CN112538898A (en) * 2020-12-19 2021-03-23 兰州理工大学 Self-resetting shearing-constraint buckling damage controllable assembly type beam-column joint

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