CN112095811A - Adopt bolted connection's assembled concrete frame roof beam post trunk formula connected node - Google Patents
Adopt bolted connection's assembled concrete frame roof beam post trunk formula connected node Download PDFInfo
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- CN112095811A CN112095811A CN202011059315.5A CN202011059315A CN112095811A CN 112095811 A CN112095811 A CN 112095811A CN 202011059315 A CN202011059315 A CN 202011059315A CN 112095811 A CN112095811 A CN 112095811A
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- China
- Prior art keywords
- precast concrete
- column
- bolt
- concrete
- trompil
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
Abstract
The invention discloses an assembled concrete frame beam column dry type connecting node adopting bolt connection, which comprises a precast concrete column, a precast concrete beam and two L-shaped connecting devices, wherein each L-shaped connecting device comprises a vertical plate and a transverse plate, the two L-shaped connecting devices are symmetrically arranged on the upper side and the lower side of the end part of the precast concrete beam, the two transverse plates are fixedly connected with the upper side and the lower side of the precast concrete beam, the two vertical plates are fixedly connected with one side surface of the middle part of the precast concrete column, the assembled concrete frame beam column dry type connecting node also comprises two steel plates arranged on the side surfaces of the end part of the precast concrete beam, and the two steel plates and the two transverse plates are welded to. According to the invention, the beam-column connection part is connected by the high-ductility bolt through the L-shaped steel plate, so that the energy consumption capability of the node can be effectively improved, and meanwhile, the steel plate is wrapped outside the precast concrete beam, so that the strength of the part can be enhanced, the outward movement of the beam-end plastic hinge is realized, and the deformation capability of the node is enhanced.
Description
Technical Field
The invention belongs to the technical field of fabricated concrete structural members, and particularly relates to a beam-column dry type connecting node of a fabricated concrete frame connected by bolts.
Background
The prefabricated concrete structure is developed rapidly and rapidly in China in recent years, and has the advantages of high production efficiency, energy conservation, environmental friendliness and the like due to the fact that main components of the prefabricated concrete structure are produced in a factory. The assembly type concrete frame structure is a structural system which has better integral performance and seismic performance of the structure in the assembly type structure and has more research and application.
The existing assembled concrete frame structure generally adopts common concrete and common steel bars, key technical problems that node steel bars are crowded, disordered in assembling, the node quality is not easy to guarantee and the like generally exist, and the steel bars with certain length can be extended from the beam ends, so that assembling and transporting difficulties are easily caused.
The above problems limit the application and development of the fabricated concrete frame structure.
Disclosure of Invention
The invention aims to provide a beam-column dry type connecting node of an assembled concrete frame connected by bolts, which is firm in connection, simple in construction and convenient to transport.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides an adopt bolted connection's assembled concrete frame beam column trunk formula connected node, includes precast concrete post, precast concrete beam, two L type connecting device, and L type connecting device includes riser and diaphragm, and two L type connecting device symmetries establish in the upper and lower both sides of precast concrete beam tip, and both sides are connected fixedly about two diaphragms and the precast concrete beam, and two risers are connected fixedly with a precast concrete post middle part side.
Furthermore, the prefabricated concrete beam further comprises two steel plates arranged on the side faces of the end portions of the prefabricated concrete beam, and the two steel plates and the two transverse plates are welded to form a coating cavity to coat the end portions of the prefabricated concrete beam.
And the L-shaped connecting device is provided with stiffening ribs, and the stiffening ribs, the vertical plate and the transverse plate enclose a triangle.
Furthermore, first holes are formed in the vertical plates of the two L-shaped connecting devices, first bolt holes which are corresponding to the first holes and penetrate through the precast concrete column are formed in the upper end and the lower end of the precast concrete column respectively, and the vertical plates and one side face of the middle of the precast concrete column are fixedly connected through the first holes and the first bolt holes by high-ductility connecting bolts.
Further, all be equipped with the second trompil on two L type connecting device's the diaphragm, the upper and lower both sides of precast concrete beam tip are equipped with the second bolt pore that runs through the precast concrete beam that corresponds with the second trompil respectively, and high ductility connecting bolt passes second trompil and second bolt pore and is connected fixedly diaphragm and precast concrete beam upper and lower both sides.
And the upper stress rib and the lower stress rib of the precast concrete beam are bent by 90 degrees at the end part of the precast concrete beam and do not extend into the core area of the node.
After the precast concrete column, the precast concrete beam and the L-shaped connecting device penetrate through the high-ductility bolt, one end of the high-ductility bolt is padded into the steel base plate, and then the nut is fastened.
Compared with the prior art, the invention has the following remarkable advantages:
the upper and lower stress bars of the precast concrete beam are hooked at 90 degrees at the beam-column joint surface and do not extend into a node core area; when the node is assembled, aligning a first bolt hole on the precast concrete column with a first opening on the plate A of the L-shaped connecting device, penetrating a high-ductility connecting bolt, padding a steel plate cushion block at the other end, and screwing a nut; and aligning a second bolt pore channel at the end of the precast concrete beam with a second pore channel of the L-shaped connecting device, threading a high-ductility connecting bolt, screwing nuts, welding steel plates with the same length as one side of the L-shaped connecting device on the side surface of the beam after all the nuts are screwed, and wrapping the end part of the precast concrete beam inside. The joint of the invention adopts L-shaped connection, and the connection between the precast concrete beam and the precast concrete column is realized through the bolt, thereby reducing the on-site wet operation and effectively improving the joint connection reliability. Meanwhile, the L-shaped connecting devices are adopted on the upper surface and the lower surface of the beam-column joint, the energy consumption capacity of the joint can be further improved, meanwhile, the beam end is wrapped by the steel plate, the plastic hinge of the beam end can be moved outwards, the deformation capacity of the joint is enhanced, obvious technical advantages are achieved, and the large-scale popularization and application prospect is achieved.
Drawings
The invention is further described with reference to the following figures and detailed description.
Fig. 1 is a schematic structural view of an assembled concrete frame beam-column trunk type connection node adopting bolt connection according to the present invention;
FIG. 2 is a schematic view of a precast concrete column opening;
FIG. 3 is a schematic view of an opening of a precast concrete beam;
FIG. 4 is a schematic view of an L-shaped connecting device with stiffening ribs, steel plates.
Detailed Description
The invention relates to an assembled concrete frame beam-column dry type connecting node adopting bolt connection, which is used for on-site beam-column connection of an assembled concrete frame structure.
As shown in one of fig. 1 to 4, the assembled concrete frame beam column dry type connecting joint adopting bolt connection comprises a precast concrete column 1, a precast concrete beam 2 and two L-shaped connecting devices 3, wherein each L-shaped connecting device 3 comprises a vertical plate and a transverse plate, the two L-shaped connecting devices 3 are symmetrically arranged on the upper side and the lower side of the end part of the precast concrete beam 2, the two transverse plates are fixedly connected with the upper side and the lower side of the precast concrete beam 2, and the two vertical plates are fixedly connected with one side surface of the middle part of the precast concrete column 1.
The prefabricated concrete beam further comprises two steel plates 4 arranged on the side faces of the end portions of the prefabricated concrete beam 2, and the two steel plates 4 and the two transverse plates are welded to form a coating cavity to coat the end portions of the prefabricated concrete beam 2.
The L-shaped connecting device 3 is provided with a stiffening rib 5, and the stiffening rib 5, the vertical plate and the transverse plate enclose a triangle.
All be equipped with first trompil 31 on two L type connecting device 3's the riser, the upper and lower both ends of precast concrete post 1 are equipped with the first bolt pore 12 that runs through precast concrete post 1 that corresponds with first trompil 31 respectively, and high ductility connecting bolt 11 passes first trompil 31 and first bolt pore 12 and is connected the riser and is fixed with 1 middle part side of precast concrete post.
All be equipped with second trompil 32 on two L type connecting device 3's the diaphragm, the upper and lower both sides of 2 tip of precast concrete beam are equipped with the second bolt pore 24 that runs through precast concrete beam 2 that corresponds with second trompil 32 respectively, and high ductility connecting bolt 23 passes second trompil 32 and second bolt pore 24 and is connected fixedly diaphragm and precast concrete beam 2 upper and lower both sides.
The upper stress rib 21 and the lower stress rib 22 of the precast concrete beam 2 are hooked at the beam-column joint surface by 90 degrees and do not extend into the node core area.
The invention relates to an on-site construction and assembly process of an assembled concrete frame beam column dry type connecting joint connected by bolts, which comprises the following steps:
fixing the positions of a precast concrete column 1 and a precast concrete beam 2, respectively placing an L-shaped connecting device 3 on the upper surface and the lower surface of a beam-column joint, ensuring that a first opening 31 and a second opening 32 on the L-shaped connecting device 3 are aligned with a first bolt through hole 12 on the precast concrete column 1 and a second bolt through hole 24 on the precast concrete beam 2, respectively penetrating a high-ductility bolt 11 and a high-ductility bolt 23 into the holes after the alignment, and screwing a nut after the bolts penetrate to realize the connection between the beams and the columns; and welding a steel plate 4 on the beam side surface of the end part of the precast concrete beam 2 in a mode of welding with the L-shaped connecting device, and after the welding is finished, wrapping the end part of the precast concrete beam 2 in the steel plate, so that the plastic hinge at the end part of the precast concrete beam moves outwards.
According to the invention, the upper and lower parts of the beam-column joint are respectively provided with the L-shaped connecting devices, and the connection between the precast concrete beam and the precast concrete column is realized through the bolts. The stress bars on the upper portion and the lower portion of the precast concrete beam do not need to stretch into the joint area, the problem that the reinforcing bars in the joint area are too dense is avoided, and construction quality and efficiency of the joint area are improved.
The precast concrete beam and the precast concrete column are connected by the bolt, so that the assembly cost is greatly reduced. The node can effectively solve the problem of difficulty in assembling and transporting, and meanwhile, the deformability of the node can be enhanced. Has obvious technical advantages and has large-scale popularization and application prospect.
The advantages of the invention include:
(1) the invention has the advantages of firm quality, high joining strength and convenient construction by adopting bolts to connect the steel plates;
(2) the bolt connection is adopted, so that the field wet operation is further reduced, and the waste of field water resources is reduced;
(3) the beam-column joint is made of L-shaped steel and high-ductility bolts, so that the energy consumption capacity of the node can be effectively improved, and the deformation capacity of the node is further improved;
(4) the periphery of the beam end part at the beam-column joint is wrapped by the steel plate, so that the plastic hinge of the beam end can be effectively transferred, and the deformation capacity of the joint is enhanced;
(5) the invention has simple connection mode, reliable connection mode and accurate position, and solves the problem of disordered node assembly.
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 construed as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (6)
1. The utility model provides an adopt bolted connection's assembled concrete frame roof beam post trunk formula connected node which characterized in that: the prefabricated concrete column comprises a prefabricated concrete column (1), a prefabricated concrete beam (2) and two L-shaped connecting devices (3), wherein the L-shaped connecting devices (3) comprise vertical plates and transverse plates, the two L-shaped connecting devices (3) are symmetrically arranged on the upper side and the lower side of the end part of the prefabricated concrete beam (2), the two transverse plates are fixedly connected with the upper side and the lower side of the prefabricated concrete beam (2), and the two vertical plates are fixedly connected with one side surface of the middle part of the prefabricated concrete column (1).
2. The assembled concrete frame beam-column trunk type connection node adopting the bolt connection according to claim 1, wherein: the prefabricated concrete beam further comprises two steel plates (4) arranged on the side faces of the end portions of the prefabricated concrete beam (2), and the two steel plates (4) and the two transverse plates are welded to form a coating cavity to coat the end portions of the prefabricated concrete beam (2).
3. The assembled concrete frame beam-column trunk type connection node adopting the bolt connection according to claim 1, wherein: and stiffening ribs (5) are arranged on the L-shaped connecting devices (3), and the stiffening ribs (5), the vertical plates and the transverse plates enclose a triangle.
4. The assembled concrete frame beam-column trunk type connection node adopting the bolt connection according to claim 1, wherein: all be equipped with first trompil (31) on the riser of two L type connecting device (3), the upper and lower both ends of precast concrete post (1) are equipped with first bolt hole (12) that run through precast concrete post (1) that correspond with first trompil (31) respectively, and high ductility connecting bolt (11) pass first trompil (31) and first bolt hole (12) with the riser with precast concrete post (1) middle part side be connected fixedly.
5. The assembled concrete frame beam-column trunk type connection node adopting the bolt connection according to claim 1, wherein: all be equipped with second trompil (32) on the diaphragm of two L type connecting device (3), the upper and lower both sides of precast concrete roof beam (2) tip are equipped with second bolt hole (24) that run through precast concrete roof beam (2) that correspond with second trompil (32) respectively, and high ductility connecting bolt (23) pass second trompil (32) and second bolt hole (24) with diaphragm and precast concrete roof beam (2) both sides about be connected fixedly.
6. The assembled concrete frame beam-column trunk type connection node adopting the bolt connection according to claim 1, wherein: the upper stress rib (21) and the lower stress rib (22) of the precast concrete beam (2) are hooked at the joint surface of the beam column by 90 degrees and do not extend into the core area of the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011059315.5A CN112095811A (en) | 2020-09-30 | 2020-09-30 | Adopt bolted connection's assembled concrete frame roof beam post trunk formula connected node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011059315.5A CN112095811A (en) | 2020-09-30 | 2020-09-30 | Adopt bolted connection's assembled concrete frame roof beam post trunk formula connected node |
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| Publication Number | Publication Date |
|---|---|
| CN112095811A true CN112095811A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011059315.5A Pending CN112095811A (en) | 2020-09-30 | 2020-09-30 | Adopt bolted connection's assembled concrete frame roof beam post trunk formula connected node |
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| CN (1) | CN112095811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789854A (en) * | 2021-09-03 | 2021-12-14 | 湖南大学 | Fully-assembled beam-column joint based on groove-type UHPC splicing component and manufacturing method thereof |
| CN114352052A (en) * | 2021-12-15 | 2022-04-15 | 江苏海洋大学 | Method for reinforcing concrete frame node |
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| CN104032839A (en) * | 2014-07-03 | 2014-09-10 | 河北联合大学 | Connecting structure of frictional type damper assembling type frame joint and constructing method thereof |
| CN106968332A (en) * | 2017-03-09 | 2017-07-21 | 武汉大学 | A kind of prestressing force assembled high-performance concrete-filled circular steel tube column concrete girder connection and its construction method |
| JP2017150179A (en) * | 2016-02-23 | 2017-08-31 | 平石 久廣 | Column beam structure having vibration damping structure |
| CN107859172A (en) * | 2017-10-18 | 2018-03-30 | 北京工业大学 | A kind of T-shaped cover plate folder edge of a wing attachment means of assembling type steel structure Special-Shaped Column bean column node |
| CN209163043U (en) * | 2018-11-07 | 2019-07-26 | 沈阳建筑大学 | A kind of side's Concrete-filled Double Skin Steel Tube Columns and steel beam connecting joint |
| CN111236447A (en) * | 2020-02-25 | 2020-06-05 | 东南大学 | Anti-seismic and anti-continuous-collapse frame beam column connecting node |
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2020
- 2020-09-30 CN CN202011059315.5A patent/CN112095811A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032839A (en) * | 2014-07-03 | 2014-09-10 | 河北联合大学 | Connecting structure of frictional type damper assembling type frame joint and constructing method thereof |
| JP2017150179A (en) * | 2016-02-23 | 2017-08-31 | 平石 久廣 | Column beam structure having vibration damping structure |
| CN106968332A (en) * | 2017-03-09 | 2017-07-21 | 武汉大学 | A kind of prestressing force assembled high-performance concrete-filled circular steel tube column concrete girder connection and its construction method |
| CN107859172A (en) * | 2017-10-18 | 2018-03-30 | 北京工业大学 | A kind of T-shaped cover plate folder edge of a wing attachment means of assembling type steel structure Special-Shaped Column bean column node |
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| CN111236447A (en) * | 2020-02-25 | 2020-06-05 | 东南大学 | Anti-seismic and anti-continuous-collapse frame beam column connecting node |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789854A (en) * | 2021-09-03 | 2021-12-14 | 湖南大学 | Fully-assembled beam-column joint based on groove-type UHPC splicing component and manufacturing method thereof |
| CN114352052A (en) * | 2021-12-15 | 2022-04-15 | 江苏海洋大学 | Method for reinforcing concrete frame node |
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