CN113775050A - Assembly type flange steel-concrete combined beam-column joint, structure system and installation method - Google Patents
Assembly type flange steel-concrete combined beam-column joint, structure system and installation method Download PDFInfo
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- CN113775050A CN113775050A CN202111082792.8A CN202111082792A CN113775050A CN 113775050 A CN113775050 A CN 113775050A CN 202111082792 A CN202111082792 A CN 202111082792A CN 113775050 A CN113775050 A CN 113775050A
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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
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
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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
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
- E04B1/585—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form with separate connection devices
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/945—Load-supporting structures specially adapted therefor
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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 an assembly type flange steel-concrete combined beam-column joint, a structural system and an installation method, wherein the assembly type flange steel-concrete combined beam-column joint comprises a column joint and a beam joint; the column joints are arranged on the columns, steel pipe columns are arranged inside the columns, steel reinforcement cages are arranged on the outer layers of the steel pipe columns, concrete is poured outside the steel pipe columns, flanges are respectively fixed on the steel pipe columns at the upper and lower ends of each column, and adjacent columns are fixedly connected through the flanges; the beam node is arranged in the middle of the column body and comprises a transverse bolt, a steel pipe column and a flange plate, and a combined beam is connected between the two beam nodes through a flange.
Description
Technical Field
The invention belongs to the technical field of assembly type buildings, and particularly relates to an assembly type flange steel-concrete combined beam column node, a structural system and an installation method.
Background
At present, the construction difficulty of the frame structure of the prefabricated building mainly focuses on the connection structure of the precast beam and the column member in the node area. Traditional construction methods mainly have two kinds, the first kind is that the roof beam end that stretches out is indulged the muscle and is carried out curved anchor in beam column node with the beam bottom, the straight anchor section of the required curved anchor section of beam bottom under solving traditional arrangement of reinforcement structure is longer, the straight anchor muscle in the bottom of two precast beams that cause same direction is in beam column node overlap joint side by side, the problem of dodging about the straight anchor muscle of beam bottom need be considered during the messenger's construction, prevent to collide, cause the construction difficulty, cause the straight anchor muscle offset of beam bottom and cooperation gap undersize simultaneously easily, influence concrete placement and shaping quality. The second type is that two precast beam ends in the same direction only extend out of a horizontal straight anchor section, and the straight anchor section beam ribs on two sides are butted by using grouting sleeves in beam column joints, but the operation mode needs hardening and maintenance, the required construction period is long, the construction progress is influenced, and the construction cost is high. In addition, above-mentioned two kinds of beam column node structures all have higher requirements to prefabricated component's reinforcing bar position, also have more degree of difficulty simultaneously when the construction, in addition, the steel bar structure stability that the reinforcing bar of node formed is also relatively poor.
Disclosure of Invention
The invention provides an assembly type flange steel-concrete combined beam column node, a structural system and an installation method, and aims to solve the technical problems.
Therefore, the invention adopts the following technical scheme:
an assembled flange steel-concrete combined beam-column joint and a structural system comprise column joints and beam joints;
the column joint is arranged on the column body, the column body comprises an upper column body and a lower column body, steel pipe columns are arranged inside the upper column body and the lower column body, a steel reinforcement cage is arranged on the outer layer of each steel pipe column, concrete is poured outside the steel pipe columns, the upper ends and the lower ends of the steel pipe columns and the steel reinforcement cage extend out of the poured concrete, flange plates are respectively fixed on the steel pipe columns at the upper ends and the lower ends of the upper column body and the lower column body, and the lower end of the upper column body is fixedly connected with the upper end of the lower column body through the flange plates; the reinforcement cage between the upper column body and the lower column body is fixedly connected through a sleeve, concrete is poured between the upper column body and the lower column body, and the concrete is used for wrapping the flange plate and the exposed reinforcement cage;
the beam nodes are arranged at the middle position of the column body, transverse bolts protruding outwards are preset in the middle of the column body and are annularly arranged, a horizontal steel pipe column is fixedly connected to the front ends of the transverse bolts, a flange plate is fixed to the front ends of the steel pipe column, and concrete is poured at the joint of the steel pipe column and the column body; the combined beam is connected between the two beam nodes and comprises a steel pipe column, flange plates and concrete poured outside the steel pipe column, the flange plates at the front end and the rear end of the combined beam are respectively fixedly connected with the flange plates on the two beam nodes through bolts, and the concrete is poured between the end part of the combined beam and the beam nodes.
Further, the upper end and the lower end of the auxiliary steel bar are both in threaded connection with sleeves, the sleeves above the auxiliary steel bar are in threaded connection with the steel bars at the lower end of the upper column body, and the sleeves below the auxiliary steel bar are in threaded connection with the steel bars at the upper end of the lower column body.
Further, the sleeve is an outer hexagonal sleeve.
Furthermore, concrete is poured into the steel pipe columns of the upper column body and the lower column body.
A method for installing a node and a structural system of an assembled flange steel-concrete combined beam-column comprises the following steps:
1) column construction: firstly, pouring and fixing a lower cylinder according to construction requirements, vertically hoisting an upper cylinder to the upper part of the lower cylinder by using hoisting equipment, placing a flange plate at the lower end of the upper cylinder on a flange plate at the upper end of the lower cylinder, enabling mounting holes on the two flange plates to be opposite, and then mounting bolt fixing flange plates in the mounting holes;
selecting auxiliary steel bars, respectively installing sleeves at the upper end and the lower end of each auxiliary steel bar, vertically placing the auxiliary steel bars between two opposite steel bars of the upper cylinder and the lower cylinder, connecting the sleeve above the upward rotation with the steel bars correspondingly, and connecting the sleeve below the downward rotation with the steel bars correspondingly, so as to connect the auxiliary steel bars to the steel bar cage;
installing a template between the upper column body and the lower column body, pouring concrete between the upper column body and the lower column body through the template, and removing the template after the concrete is solidified;
2) and (3) beam joint construction: the beam nodes are connected through bolts reserved on the columns, so that the beam nodes are ensured to be horizontal, and two opposite beam nodes are positioned on the same straight line;
3) installing a composite beam: hoisting the combined beam between two beam nodes to enable the combined beam to be in a horizontal state, enabling the flanges at two ends of the combined beam to abut against the flanges at the end parts of the two beam nodes respectively, then installing bolts on the flanges, and installing auxiliary steel bars and sleeves on the steel bar cage; and finally, fixing a template between the combined beam and the beam node, pouring concrete between the combined beam and the beam node through the template, and removing the template after the concrete is solidified.
The invention has the beneficial effects that:
1. the beam column joint is prefabricated in a factory, and the field construction difficulty is greatly reduced. The beam column node is prefabricated in a prefabrication factory, the connecting point is arranged at the position with smaller stress of the beam column rod piece, and the beam column node only needs to be connected on site, so that concrete pouring and complex node connection of the node on a construction site can be effectively avoided, and the difficulty of site construction is greatly reduced.
2. The construction is convenient. The column body and the inter-column connection adopt steel pipe flange connection and large-diameter steel bar sleeve connection, so that the connection is simple and convenient, and the construction is convenient.
3. And the support layout is reduced. Adopt steel pipe flange joint between cylinder and post, compare in traditional grout muffjoint, can tentatively realize the post fixed, reduce on-the-spot post and support and lay.
4. Good fire-resistant effect. The concrete structure has the advantages that the concrete structure is combined, the external concrete plays a role in protection, the defect of poor fireproof performance of a steel structure is overcome, the fireproof performance of the structure is improved, the application of on-site fireproof paint is reduced compared with an assembled steel structure, and the fireproof paint and the construction period are saved.
5. Flexible design application. The column body adopts the hollow steel pipe to be wrapped with the concrete, and for low-rise buildings, the concrete can not be poured in the steel pipe under the condition based on design allowance, so that the self weight of the structure is reduced, and materials are saved; for high-rise buildings, concrete can be poured into the steel pipes to improve the structural strength and reduce the section area of the member.
Drawings
FIG. 1 is a schematic view of the construction of the column node connection of the present invention;
FIG. 2 is a schematic structural view after the construction of the column joint of the present invention is completed;
FIG. 3 is a schematic structural view of the beam joint of the present invention when connected;
FIG. 4 is a schematic structural view after the construction of the beam joint of the present invention is completed;
in the figure: 1-lower column body, 2-upper column body, 3-steel pipe column, 4-reinforcement cage, 5-flange plate, 6-sleeve, 7-auxiliary reinforcement and 8-composite beam.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
an assembled flange steel-concrete combined beam-column joint and a structural system comprise column joints and beam joints;
as shown in fig. 1 and 2, the column node is arranged on the column body, the column body comprises an upper column body 2 and a lower column body 1, a steel pipe column 3 is arranged inside the upper column body 2 and the lower column body 1, a reinforcement cage 4 is arranged on the outer layer of the steel pipe column 3, concrete is poured outside the steel pipe column 3, the upper end and the lower end of the steel pipe column 3 and the upper end and the lower end of the reinforcement cage 4 extend out of the poured concrete, flange plates 5 are respectively fixed on the steel pipe column 3 at the upper end and the lower end of the upper column body 2 and the lower column body 1, and the lower end of the upper column body 2 is fixedly connected with the upper end of the lower column body 1 through the flange plates 5; go up cylinder 2 and the steel reinforcement cage 4 between the lower cylinder 1 and pass through sleeve 6 fixed connection, the equal threaded connection in upper and lower both ends of supplementary reinforcing bar 7 has sleeve 6, the sleeve 6 and the reinforcing bar threaded connection of last cylinder 2 lower extreme of top, the sleeve 6 and the reinforcing bar threaded connection of cylinder 1 upper end down of below. Concrete is further poured between the upper column body 2 and the lower column body 1 and used for wrapping the flange plate 5 and the exposed reinforcement cage 4. Concrete is poured into the steel pipe columns 3 of the upper column body 2 and the lower column body 1.
As shown in fig. 3 and 4, the beam nodes are arranged at the middle position of the column body, transverse bolts protruding outwards are preset in the middle of the column body, the transverse bolts are arranged in an annular shape, the front ends of the transverse bolts are fixedly connected with horizontal steel pipe columns 3, the front ends of the steel pipe columns 3 are fixedly provided with flange plates 5, and concrete is poured at the joints of the steel pipe columns 3 and the column body. The combined beam 8 is connected between the two beam nodes, the combined beam 8 comprises a steel pipe column 3, flange plates 5 and concrete poured outside the steel pipe column 3, the flange plates 5 at the front end and the rear end of the combined beam 8 are respectively fixedly connected with the flange plates 5 on the two beam nodes through bolts, and the concrete is poured between the end part of the combined beam 8 and the beam nodes.
A method for installing a node and a structural system of an assembled flange steel-concrete combined beam-column comprises the following steps:
1) column construction: firstly, pouring and fixing a lower cylinder 1 according to construction requirements, vertically hoisting an upper cylinder 2 to the upper part of the lower cylinder 1 by using hoisting equipment, placing a flange 5 at the lower end of the upper cylinder 2 on a flange 5 at the upper end of the lower cylinder 1, enabling mounting holes on the two flanges 5 to be opposite, and then mounting a bolt fixing flange 5 in the mounting holes;
selecting auxiliary steel bars 7, respectively installing sleeves 6 at the upper end and the lower end of each auxiliary steel bar 7, vertically placing the auxiliary steel bars 7 between two opposite steel bars of the upper column body 2 and the lower column body 1, correspondingly connecting the sleeves 6 above the upper column body and the steel bars by rotating upwards, and correspondingly connecting the sleeves 6 below the lower column body and the steel bars by rotating downwards, so that the auxiliary steel bars 7 are connected to the steel bar cage 4;
and (3) installing a template between the upper column body 2 and the lower column body 1, pouring concrete between the upper column body 2 and the lower column body 1 through the template, and removing the template after the concrete is solidified.
2) And (3) beam joint construction: the beam nodes are connected through the bolts reserved on the columns, the beam nodes are guaranteed to be horizontal, and the two opposite beam nodes are located on the same straight line.
3) And (3) mounting the combined beam 8: hoisting the combined beam 8 between two beam nodes to enable the combined beam 8 to be in a horizontal state, enabling the flange plates 5 at two ends of the combined beam 8 to be respectively abutted against the flange plates 5 at the end parts of the two beam nodes, then installing bolts on the flanges, and then installing auxiliary steel bars 7 and sleeves 6 on the steel bar cage 4; and finally, fixing a template between the combined beam 8 and the beam node, pouring concrete between the combined beam 8 and the beam node through the template, and removing the template after the concrete is solidified.
It should be noted that the above are only some embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (5)
1. An assembled flange steel-concrete combined beam-column joint and a structural system are characterized by comprising a column joint and a beam joint;
the column joint is arranged on the column body, the column body comprises an upper column body and a lower column body, steel pipe columns are arranged inside the upper column body and the lower column body, a steel reinforcement cage is arranged on the outer layer of each steel pipe column, concrete is poured outside the steel pipe columns, the upper ends and the lower ends of the steel pipe columns and the steel reinforcement cage extend out of the poured concrete, flange plates are respectively fixed on the steel pipe columns at the upper ends and the lower ends of the upper column body and the lower column body, and the lower end of the upper column body is fixedly connected with the upper end of the lower column body through the flange plates; the reinforcement cage between the upper column body and the lower column body is fixedly connected through a sleeve, concrete is poured between the upper column body and the lower column body, and the concrete is used for wrapping the flange plate and the exposed reinforcement cage;
the beam nodes are arranged at the middle position of the column body, transverse bolts protruding outwards are preset in the middle of the column body and are annularly arranged, a horizontal steel pipe column is fixedly connected to the front ends of the transverse bolts, a flange plate is fixed to the front ends of the steel pipe column, and concrete is poured at the joint of the steel pipe column and the column body; the combined beam is connected between the two beam nodes and comprises a steel pipe column, flange plates and concrete poured outside the steel pipe column, the flange plates at the front end and the rear end of the combined beam are respectively fixedly connected with the flange plates on the two beam nodes through bolts, and the concrete is poured between the end part of the combined beam and the beam nodes.
2. The assembled flange steel-concrete composite beam column joint and structure system as claimed in claim 1, wherein the upper and lower ends of the auxiliary steel bars are in threaded connection with sleeves, the upper sleeve is in threaded connection with the steel bars at the lower end of the upper column body, and the lower sleeve is in threaded connection with the steel bars at the upper end of the lower column body.
3. The fabricated flange steel and concrete composite beam column node, structural system of claim 2, wherein the sleeve is an outer hexagonal sleeve.
4. The fabricated flange steel-concrete composite beam column joint and structure system according to claim 1, wherein concrete is poured into the steel pipe columns of the upper column body and the lower column body.
5. An installation method of the assembled flange steel-concrete combined beam-column joint and structure system as claimed in any one of claims 1 to 4, characterized by comprising the following steps:
1) column construction: firstly, pouring and fixing a lower cylinder according to construction requirements, vertically hoisting an upper cylinder to the upper part of the lower cylinder by using hoisting equipment, placing a flange plate at the lower end of the upper cylinder on a flange plate at the upper end of the lower cylinder, enabling mounting holes on the two flange plates to be opposite, and then mounting bolt fixing flange plates in the mounting holes;
selecting auxiliary steel bars, respectively installing sleeves at the upper end and the lower end of each auxiliary steel bar, vertically placing the auxiliary steel bars between two opposite steel bars of the upper cylinder and the lower cylinder, connecting the sleeve above the upward rotation with the steel bars correspondingly, and connecting the sleeve below the downward rotation with the steel bars correspondingly, so as to connect the auxiliary steel bars to the steel bar cage;
installing a template between the upper column body and the lower column body, pouring concrete between the upper column body and the lower column body through the template, and removing the template after the concrete is solidified;
2) and (3) beam joint construction: the beam nodes are connected through bolts reserved on the columns, so that the beam nodes are ensured to be horizontal, and two opposite beam nodes are positioned on the same straight line;
3) installing a composite beam: hoisting the combined beam between two beam nodes to enable the combined beam to be in a horizontal state, enabling the flanges at two ends of the combined beam to abut against the flanges at the end parts of the two beam nodes respectively, then installing bolts on the flanges, and installing auxiliary steel bars and sleeves on the steel bar cage; and finally, fixing a template between the combined beam and the beam node, pouring concrete between the combined beam and the beam node through the template, and removing the template after the concrete is solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111082792.8A CN113775050A (en) | 2021-09-15 | 2021-09-15 | Assembly type flange steel-concrete combined beam-column joint, structure system and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111082792.8A CN113775050A (en) | 2021-09-15 | 2021-09-15 | Assembly type flange steel-concrete combined beam-column joint, structure system and installation method |
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| Publication Number | Publication Date |
|---|---|
| CN113775050A true CN113775050A (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111082792.8A Pending CN113775050A (en) | 2021-09-15 | 2021-09-15 | Assembly type flange steel-concrete combined beam-column joint, structure system and installation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482598A (en) * | 2022-01-12 | 2022-05-13 | 广城建设集团有限公司 | Building column strengthening structure and method |
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2021
- 2021-09-15 CN CN202111082792.8A patent/CN113775050A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482598A (en) * | 2022-01-12 | 2022-05-13 | 广城建设集团有限公司 | Building column strengthening structure and method |
| CN114482598B (en) * | 2022-01-12 | 2023-09-22 | 广城建设集团有限公司 | Building column strengthening structure and method |
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