CN111719693A - Prestress assembly type steel-concrete sleeved beam-column joint - Google Patents
Prestress assembly type steel-concrete sleeved beam-column joint Download PDFInfo
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- CN111719693A CN111719693A CN202010606373.9A CN202010606373A CN111719693A CN 111719693 A CN111719693 A CN 111719693A CN 202010606373 A CN202010606373 A CN 202010606373A CN 111719693 A CN111719693 A CN 111719693A
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- concrete
- column
- steel sleeve
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- segment
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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
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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
- E04B1/22—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 with parts being prestressed
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a prestress assembly type steel-concrete sleeved beam-column joint which is strong in structural bearing capacity, good in crack resistance, strong in energy consumption capacity, reliable in connection and good in integrity. The beam column node is used for connecting upper and lower concrete column sections (1 and 2) and left and right concrete beam sections (3 and 4), and comprises a column steel sleeve (5), left and right beam steel sleeves (6 and 7) and a plurality of prestressed tendons (8); the upper concrete column segment (1) and the lower concrete column segment (2) are inserted into the column steel sleeve (5) and are bonded with the column steel sleeve (5) into a whole; the left and right concrete beam sections (3, 4) are inserted into the left and right beam steel sleeves (6, 7) and bonded with the beam steel sleeves (6, 7) into a whole; the prestressed tendons (8) sequentially penetrate through the left concrete beam section (3), the concrete column sections (1, 2) and the right concrete beam section (4) and are anchored at two ends after being tensioned.
Description
Technical Field
The invention belongs to the technical field of assembly type building components, and particularly relates to a prestress assembly type steel-concrete sleeved beam-column joint.
Background
The fabricated building has the advantages of short construction period, energy conservation, consumption reduction, environmental pollution reduction and the like, and is one of important building forms at present.
However, fabricated building nodes are also somewhat fragile and less integral than cast in place buildings. Foreign seismic data show that in the integral collapse of the structure, prefabricated components are slightly damaged, the connection parts between the components are seriously damaged, and the bearing capacity is lost.
The existing fabricated building beam-column node generally comprises an upper concrete column segment, a lower concrete column segment, at least one concrete beam segment, a column steel sleeve and at least one beam steel sleeve to be connected, as described in the Chinese invention patent application 'socket joint type prefabricated steel-concrete node' (application number: 201911288398.2 published: 2020.04.28); the ends of the upper concrete column section and the lower concrete column section are opposite and are sleeved in the column steel sleeve in a loose fit manner, the beam steel sleeve is detachably and fixedly connected with the outer side surface of the column steel sleeve, and the end of the concrete beam section is sleeved in the beam steel sleeve in a loose fit manner; the gaps between the ends of the upper concrete column segment and the lower concrete column segment and the column steel sleeve are densely filled with epoxy mortar, and the gaps between the ends of the concrete beam segments and the beam steel sleeve are densely filled with epoxy mortar.
Such assembly type structure beam column festival only passes through beam column steel bushing and bolted connection with the precast concrete beam and the direct grout fixed connection of beam steel bushing with the precast concrete beam, has node structure bearing capacity, anti cracking performance and power consumption ability not enough and precast concrete beam connection reliability not enough, the shortcoming of wholeness lack.
Disclosure of Invention
The invention aims to provide a prestress assembly type steel-concrete sleeved beam-column joint which is strong in structural bearing capacity, good in anti-cracking performance, strong in energy consumption capacity, reliable in connection and good in integrity.
The technical solution for realizing the purpose of the invention is as follows:
a prestressed assembly type steel-concrete sleeving beam-column joint is used for connecting upper and lower concrete column sections 1 and 2 and left and right concrete beam sections 3 and 4 and comprises a column steel sleeve 5, left and right beam steel sleeves 6 and 7 and a plurality of prestressed tendons 8;
the upper concrete column section 1 and the lower concrete column section 2 are respectively inserted into the column steel sleeve 5 from the top and the bottom, and high-strength grouting materials are injected into the column steel sleeve 5 to bond the upper concrete column section 1 and the lower concrete column section 2 with the column steel sleeve 5 into a whole;
the left concrete beam section 3 is inserted into the left beam steel sleeve 6 from the left side, high-strength pouring materials are injected into the left beam steel sleeve 6, the left concrete beam section 3 and the left beam steel sleeve 6 are bonded into a whole, and the right end of the left beam steel sleeve 6 is fixedly connected with the left side of the column steel sleeve 5;
the right concrete beam section 4 is inserted into a right beam steel sleeve 7 from the right side, high-strength grouting is injected into the right beam steel sleeve 7, the right concrete beam section 4 and the right beam steel sleeve 7 are bonded into a whole, and the left end of the right beam steel sleeve 7 is fixedly connected with the right side of the column steel sleeve 5;
the left end of the left concrete beam section 3, the upper concrete column section 1 and the right end of the right concrete beam section 4 extend out of one group of the prestressed tendons 8, the right end of the right concrete beam section 4 penetrates through the right concrete beam section 4, the lower concrete column section 2 and the left end of the left concrete beam section 3 from the right end of the right concrete beam section 4, and the prestressed tendons are anchored at the left end of the left concrete beam section 3 and the right end of the right concrete beam section 4 respectively after being tensioned.
Compared with the prior art, the invention has the following remarkable advantages:
1. the structure is simple: the column sections and the beam sections are connected by bolts, and compared with the existing fabricated nodes which are finished in a cast-in-place mode in node areas, the invention does not need steel bar anchoring or beam end steel bar lapping in the node areas, and has simpler structure overall.
2. The construction is convenient: according to the invention, the concrete column, the concrete beam, the column steel sleeve and the beam steel sleeve are all prefabricated in a factory, and bolt preformed holes and prestressed tendon preformed holes on the column steel and the steel plate are reserved and arranged in a factory. The construction quality of the prefabricated member can be guaranteed, the appearance of the member is regular, and the prefabricated member is easy to transport. During construction, the required prefabricated parts are hoisted in place, the prestressed tendons are inserted, and bolt connection, gap grouting and pore grouting are performed to ensure reliable connection of the nodes. When the high-strength pouring material is poured, the column steel sleeve and the beam steel sleeve can be used as the template, so that the installation and the removal of the template are avoided, and the production efficiency can be improved.
3. The crack resistance is good; according to the invention, a plurality of prestressed tendons are inserted between the column sections and the beam sections, so that the crack resistance of the structure can be improved.
4. The bearing capacity is strong, the power consumption ability is strong: the invention bonds the prestressed tendon and the concrete through the pore channel grouting, improves the energy consumption capability and the bearing capability of the structure, lightens the prestress transmission effect of the anchorage device, and improves the anchoring reliability and durability.
5. The integrity is good: the invention can connect all parts together through bolts and prestressed tendon ties, thereby improving the structural integrity. The stiffening ribs are welded on the steel plate and the beam steel sleeve, so that the local stable transmission of concentrated force of the member is ensured, and the overall stability of the member is improved.
The invention is described in further detail below with reference to the figures and the detailed description.
Drawings
Fig. 1 is a schematic structural view of a prestressed assembly type steel-concrete socketed beam-column joint of the present invention.
Fig. 2 is a schematic diagram of beam column steel sleeve connection.
FIG. 3 is a schematic view of a beam column steel jacket cutting structure.
Fig. 4 is a schematic view of the lower concrete column segment installation.
Fig. 5 is a schematic view of the upper concrete column segment installation.
Fig. 6 is a schematic view of the installation of a single-sided concrete beam segment.
Fig. 7 is a schematic view a of the installation of a double-sided concrete beam segment.
Fig. 8 is a schematic b of the installation of a double sided concrete beam segment.
Fig. 9 is a schematic structural diagram of a joint of a bidirectional prestressed assembly type steel-concrete coupling beam column.
In the figure, an upper concrete column segment 1, a bolt preformed hole 11 on the column, a prestressed tendon preformed hole 12, a lower concrete column segment 2, a bolt preformed hole 21 on the column, a prestressed tendon preformed hole 22, a left concrete beam segment 3, a right concrete beam segment 4, a column steel sleeve 5, a left beam steel sleeve 6, a right beam steel sleeve 7, a left steel plate 61, a right steel plate 71, a prestressed tendon 8, a high-strength bolt 9 and a stiffening rib 10.
Detailed Description
As shown in fig. 1, 2 and 3, the pre-stressed assembled steel-concrete sleeve joint beam-column joint of the invention is used for connecting upper and lower concrete column segments 1 and 2 and left and right concrete beam segments 3 and 4, and comprises a column steel sleeve 5, left and right beam steel sleeves 6 and 7 and a plurality of pre-stressed tendons 8;
as shown in fig. 4 and 5, the upper and lower concrete column segments 1 and 2 are respectively inserted into the column steel jacket 5 from the top and the bottom, and are injected into the column steel jacket 5 with high-strength grouting material, so that the upper and lower concrete column segments 1 and 2 and the column steel jacket 5 are bonded into a whole;
the left concrete beam section 3 is inserted into the left beam steel sleeve 6 from the left side, high-strength pouring materials are injected into the left beam steel sleeve 6, the left concrete beam section 3 and the left beam steel sleeve 6 are bonded into a whole, and the right end of the left beam steel sleeve 6 is fixedly connected with the left side of the column steel sleeve 5;
as shown in fig. 6, the right concrete beam segment 4 is inserted into the right beam steel sleeve 7 from the right side, high-strength grouting is injected into the right beam steel sleeve 7, the right concrete beam segment 4 and the right beam steel sleeve 7 are bonded into a whole, and the left end of the right beam steel sleeve 7 is fixedly connected with the right side of the column steel sleeve 5;
the plurality of prestressed tendons 8 are divided into an upper group and a lower group, wherein one group of prestressed tendons penetrates through the left concrete beam section 3 from the left end of the left concrete beam section 3, penetrates through the upper concrete column section 1 and extends out from the right end of the right concrete beam section 4, penetrates through the right concrete beam section 4 from the right end of the right concrete beam section 4, penetrates through the lower concrete column section 2 and extends out from the left end of the left concrete beam section 3, and is anchored at the left end of the left concrete beam section 3 and the right end of the right concrete beam section 4 after being tensioned.
Preferably, the first and second electrodes are formed of a metal,
the right end of the left beam steel sleeve 6 is fixedly connected with the left end plate 61, and the left end plate 61 is detachably and fixedly connected with the left side of the column steel sleeve 5 through a high-strength bolt 9. The method is convenient for processing and transporting the parts in a factory, and can improve the application flexibility and adaptability.
Preferably, the first and second electrodes are formed of a metal,
and the right end of the left beam steel sleeve 6 is fixedly connected with the left end plate 61 in a full-welding mode. The sliding between the left beam steel sleeve 6 and the left end plate 61 is avoided, the integrity of the structure is enhanced, and the structure is safe and reliable.
Preferably, the first and second electrodes are formed of a metal,
the left end of the right beam steel sleeve 7 is fixedly connected with the right end plate 71, and the right end plate 71 is detachably and fixedly connected with the right side of the column steel sleeve 5 through a high-strength bolt 9. The method is convenient for processing and transporting the parts in a factory, and can improve the application flexibility and adaptability.
Preferably, the first and second electrodes are formed of a metal,
and the left end of the right beam steel sleeve 7 is fixedly connected with the right end plate 71 in a full-welding mode. The sliding between the right beam steel sleeve 7 and the right end plate 71 is avoided, the integrity of the structure is enhanced, and the structure is safe and reliable.
As shown in figures 7 and 8 of the drawings,
the plurality of prestressed tendons 8 are divided into an upper group and a lower group, wherein one group of prestressed tendons sequentially penetrates through the left concrete beam section 3 from the left end of the left concrete beam section 3, penetrates through the upper concrete column section 1 and extends out from the right end of the right concrete beam section 4, and the other group of prestressed tendons sequentially penetrates through the right concrete beam section 4 from the right end of the right concrete beam section 4, penetrates through the lower concrete column section 2 and extends out from the left end of the left concrete beam section 3. The plurality of prestressed tendons 8 can be constructed simultaneously from two sides, so that the construction speed is increased. And a plurality of prestressed tendons 8 tie the upper concrete column section 1, the lower concrete column section 2, the left concrete beam section and the right concrete beam section into a whole, so that the crack resistance of the structure is improved.
And after the plurality of prestressed tendons 8 are tensioned, the two ends of the left concrete section 3 and the right concrete section 4 are anchored by using an anchorage device 81, and finally, pore canal grouting and anchor sealing are carried out. And the beam column segment, the beam column steel sleeve and the steel plate are connected by a high-strength bolt 9.
As shown in fig. 9, when the beam is connected with the front and the back, and the left and the right in two directions, the bolts and the prestressed tendon ducts in one direction are staggered with the bolts and the prestressed tendon ducts in the other direction, so that the two-way assembly of the sleeved joint can be realized.
The upper concrete column section 1, the lower concrete section 2, the left concrete beam section 3, the right concrete beam section 4, the column steel sleeve 5, the left beam steel sleeve 6 and the right beam steel sleeve 7 are prefabricated in a factory, and bolt holes are reserved in advance on corresponding parts needing to be detachably and fixedly connected through bolts. And the corresponding parts needing to penetrate the prestressed tendons also need to reserve prestressed tendon holes in advance. The construction method can be finished in a factory in advance, so that the field operation efficiency is improved and the construction quality is ensured.
By adopting the prestress assembly type steel-concrete sleeve beam-column joint, the assembly and industrialization degree of a concrete structure can be obviously improved, the construction is convenient, the construction difficulty is reduced, the construction speed and the production efficiency of a building are improved, the construction period is shortened, and the construction cost is reduced; meanwhile, if the component is damaged, the component of the node system is convenient to replace, so that the maintenance cost of the structure can be reduced, and the maintenance process is simplified; after the prestressed tendons are added, the crack resistance of the structure can be improved, the prestressed tendons are bonded with concrete through pore grouting, the energy consumption capacity and the bearing capacity of the structure are improved, the prestress transmission effect of the anchorage device is reduced, and the anchoring reliability and durability are improved. Through bolts and prestressed tendon lacing, all parts can be better connected together, and the structural integrity is improved. The steel plate and the beam steel sleeve are welded with stiffening ribs, so that the local stable transmission of concentrated force of the component is ensured, and the overall stability of the component is improved.
Claims (5)
1. The utility model provides a prestressing force assembled steel-concrete cup joints beam column node for connect upper and lower concrete column segment (1, 2) and left and right concrete beam segment (3, 4), its characterized in that:
comprises a column steel sleeve (5), a left beam steel sleeve (6), a right beam steel sleeve (7) and a plurality of prestressed tendons (8);
the upper concrete column segment (1) and the lower concrete column segment (2) are respectively inserted into the column steel sleeve (5) from top to bottom, high-strength grouting materials are injected into the column steel sleeve (5), and the upper concrete column segment (1) and the lower concrete column segment (2) are bonded with the column steel sleeve (5) into a whole;
the left concrete beam section (3) is inserted into the left beam steel sleeve (6) from the left side, high-strength grouting is injected into the left beam steel sleeve (6), the left concrete beam section (3) and the left beam steel sleeve (6) are bonded into a whole, and the right end of the left beam steel sleeve (6) is fixedly connected with the left side of the column steel sleeve (5);
the right concrete beam section (4) is inserted into a right beam steel sleeve (7) from the right side, high-strength grouting is injected into the right beam steel sleeve (7), the right concrete beam section (4) and the right beam steel sleeve (7) are bonded into a whole, and the left end of the right beam steel sleeve (7) is fixedly connected with the right side of the column steel sleeve (5);
many prestressing tendons (8) a set of from left concrete beam section (3) left end pass left concrete beam section (3), go up concrete column section (1), stretch out from right concrete beam section (4) right-hand member, another a set of from right concrete beam section (4) right-hand member pass right concrete beam section (4), concrete column section (2) down, stretch out from left concrete beam section (3) left end, anchor in left concrete beam section (3) left end and right concrete beam section (4) right-hand member respectively after the tensioning.
2. The sleeved beam-column joint of claim 1, wherein:
the left beam steel sleeve (6) right end and left end plate (61) fixed connection, left end plate (61) and column steel sleeve (5) left side are through high strength bolt (9) removable fixed connection.
3. The sleeved beam-column joint of claim 2, wherein:
and the right end of the left beam steel sleeve (6) is fixedly connected with the left end plate (61) in a full welding manner.
4. The sleeved beam-column joint of claim 1, wherein:
the left end of the right beam steel sleeve (7) is fixedly connected with a right end plate (71), and the right end plate (71) is detachably and fixedly connected with the right side of the column steel sleeve (5) through a high-strength bolt (9).
5. The sleeved beam-column joint of claim 4, wherein:
and the left end of the right beam steel sleeve (6) is fixedly connected with the right end plate (71) in a full-welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606373.9A CN111719693A (en) | 2020-06-30 | 2020-06-30 | Prestress assembly type steel-concrete sleeved beam-column joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606373.9A CN111719693A (en) | 2020-06-30 | 2020-06-30 | Prestress assembly type steel-concrete sleeved beam-column joint |
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| CN111719693A true CN111719693A (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010606373.9A Pending CN111719693A (en) | 2020-06-30 | 2020-06-30 | Prestress assembly type steel-concrete sleeved beam-column joint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293861A (en) * | 2021-05-11 | 2021-08-24 | 扬州大学 | Prefabricated assembly cup joint type steel-wood beam column joint |
| CN113863492A (en) * | 2021-09-17 | 2021-12-31 | 哈尔滨工业大学 | Fabricated concrete beam-column self-resetting node based on friction steel plate connection and assembling method |
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| JPH0633516A (en) * | 1992-07-10 | 1994-02-08 | Maeda Corp | Joint part structure of filling type steel pipe concrete column and pc beam and joining method therefor |
| CN101798849A (en) * | 2010-03-26 | 2010-08-11 | 东南大学 | Node connection device for self-centering prestressed concrete frame |
| CN106759879A (en) * | 2016-12-12 | 2017-05-31 | 福州大学 | Precast prestressed concrete frame is from rehabilitation energy dissipation node and its construction method |
| CN107859170A (en) * | 2017-11-15 | 2018-03-30 | 武汉理工大学 | The two-way constraint bush attaching structure of concrete beam and column node and its construction method |
| CN107965054A (en) * | 2017-11-23 | 2018-04-27 | 扬州大学 | A kind of prestressed assembly formula truss-like steel reinforced concrete structure system and its assembling method |
| CN111075015A (en) * | 2020-03-02 | 2020-04-28 | 扬州大学 | Socket joint type prefabricated steel-concrete joint |
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2020
- 2020-06-30 CN CN202010606373.9A patent/CN111719693A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633516A (en) * | 1992-07-10 | 1994-02-08 | Maeda Corp | Joint part structure of filling type steel pipe concrete column and pc beam and joining method therefor |
| CN101798849A (en) * | 2010-03-26 | 2010-08-11 | 东南大学 | Node connection device for self-centering prestressed concrete frame |
| CN106759879A (en) * | 2016-12-12 | 2017-05-31 | 福州大学 | Precast prestressed concrete frame is from rehabilitation energy dissipation node and its construction method |
| CN107859170A (en) * | 2017-11-15 | 2018-03-30 | 武汉理工大学 | The two-way constraint bush attaching structure of concrete beam and column node and its construction method |
| CN107965054A (en) * | 2017-11-23 | 2018-04-27 | 扬州大学 | A kind of prestressed assembly formula truss-like steel reinforced concrete structure system and its assembling method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293861A (en) * | 2021-05-11 | 2021-08-24 | 扬州大学 | Prefabricated assembly cup joint type steel-wood beam column joint |
| CN113863492A (en) * | 2021-09-17 | 2021-12-31 | 哈尔滨工业大学 | Fabricated concrete beam-column self-resetting node based on friction steel plate connection and assembling method |
| CN113863492B (en) * | 2021-09-17 | 2023-04-11 | 哈尔滨工业大学 | Fabricated concrete beam-column self-resetting node based on friction steel plate connection and assembling method |
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