CN116856563B - Detachable and recyclable double-tube column butt joint node structure and building thereof - Google Patents

Detachable and recyclable double-tube column butt joint node structure and building thereof Download PDF

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Publication number
CN116856563B
CN116856563B CN202311137608.4A CN202311137608A CN116856563B CN 116856563 B CN116856563 B CN 116856563B CN 202311137608 A CN202311137608 A CN 202311137608A CN 116856563 B CN116856563 B CN 116856563B
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China
Prior art keywords
steel column
column
outer sleeve
lower steel
inner core
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CN202311137608.4A
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Chinese (zh)
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CN116856563A (en
Inventor
张艳霞
王旭东
李杨龙
武丙龙
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Beijing University of Civil Engineering and Architecture
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Beijing University of Civil Engineering and Architecture
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Priority to CN202311137608.4A priority Critical patent/CN116856563B/en
Priority to CN202311431127.4A priority patent/CN117344850A/en
Publication of CN116856563A publication Critical patent/CN116856563A/en
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Publication of CN116856563B publication Critical patent/CN116856563B/en
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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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • 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
    • E04B1/5831—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
    • 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
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/32—Columns; Pillars; Struts of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/024—Structures with steel columns and beams
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2415—Brackets, gussets, joining plates
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2418—Details of bolting
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2421—Socket type connectors
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2451—Connections between closed section profiles
    • 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
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/246—Post to post connections

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The application relates to the technical field of steel structures, in particular to a detachable and recyclable double-tube column butt joint node structure and a building thereof, wherein the double-tube column butt joint node structure comprises an upper steel column, a lower steel column, an inner core tube and an outer sleeve, two ends of the inner core tube are respectively inserted into the upper steel column and the lower steel column, and the outer sleeve is sleeved at the joint of the upper steel column and the lower steel column; an annular interlayer is formed between the inner core tube and the outer sleeve; the lower end of the upper steel column and the upper end of the lower steel column are inserted into the annular interlayer; the upper steel column and the lower steel column are fixedly connected with the inner core pipe and the outer sleeve through fasteners. The application utilizes the fastener to fixedly connect the inner core tube and the outer sleeve with the upper steel column and the lower steel column, and welding is not performed any more, thereby achieving the purpose of improving the construction efficiency of the steel structure building. When the building needs to be dismantled or rebuilt in different places, the upper steel column and the lower steel column can be separated by dismantling the fasteners and can be reused.

Description

Detachable and recyclable double-tube column butt joint node structure and building thereof
Technical Field
The application relates to the technical field of steel structures, in particular to a detachable and recyclable double-tube column butt joint node structure and a building thereof.
Background
At present, the assembled building has the advantages of environmental protection, short construction period, economy and the like, and the modularized building is generated along with the continuous improvement of the assembly degree. The modularized building is used as an emerging building form, so that the construction efficiency can be improved, the cost is reduced, and the pollution of site construction to the environment can be reduced because the processing production is completed in a factory, and the modularized building is easy to standardize and has high recycling rate. Most of the existing columns are composed of a plurality of small columns, and a welding mode is often adopted during construction, but because the high-altitude operation condition is poor and the influence of external environments (such as wind, rain, snow and vibration) is large, the field welding quality is difficult to guarantee, and the problems of field inspection, reworking/reinforcement and the like are caused, the construction period is prolonged, and the construction efficiency of the steel structure building is low.
Disclosure of Invention
The application aims to provide a detachable and recyclable double-tube column butt joint node structure and a building thereof, which are used for solving the technical problem of low construction efficiency of a steel structure building in the prior art.
In order to solve the technical problems, the application provides a detachable and recyclable double-tube column butt joint node structure, which comprises an upper steel column, a lower steel column, an inner core tube and an outer sleeve, wherein two ends of the inner core tube are respectively inserted into the upper steel column and the lower steel column, and the outer sleeve is sleeved at the joint of the upper steel column and the lower steel column; an annular interlayer is formed between the inner core tube and the outer sleeve;
the lower end of the upper steel column and the upper end of the lower steel column are inserted into the annular interlayer;
the upper steel column and the lower steel column are fixedly connected with the inner core pipe and the outer sleeve through fasteners.
Through the technical scheme of the improvement, when the upper steel column and the lower steel column are spliced, the inner core pipe is inserted into the lower steel column at first, then the outer sleeve is sleeved at the upper end of the lower steel column, the inner core pipe and the outer sleeve are fixedly connected with the lower steel column by using the fastener, then the lower end of the upper steel column is inserted between the inner core pipe and the outer sleeve, and the inner core pipe and the outer sleeve are fixedly connected with the upper steel column by using the fastener, so that the connection between the upper steel column and the lower steel column is completed, welding is not performed any more, and the aim of improving the construction efficiency of a steel structure building is fulfilled.
Further, the inner pipe wall of the outer sleeve is attached to the outer column walls of the upper steel column and the lower steel column.
Preferably, the inner diameter of the outer sleeve is 2-4mm larger than the outer diameters of the upper steel column and the lower steel column.
Further, grooves of 45 degrees to 60 degrees are formed in the opening edges of the upper end and the lower end of the outer sleeve.
Further, the length of the outer sleeve is more than or equal to 1.2 times of the maximum outer diameter of the upper steel column or the lower steel column.
Further, the height of the outer sleeve is not smaller than the height of the inner core tube.
Further, the wall thickness of the outer sleeve is larger than that of the upper steel column or the lower steel column.
Preferably, the wall thickness of the outer sleeve is at least 2mm greater than the wall thickness of the upper and lower steel columns.
Further, the upper steel column or the lower steel column is a round column, and the inner core tube is a round tube section;
or the upper steel column or the lower steel column is a square column, and the cross section of the inner core pipe is regular octagon.
Further, the device also comprises a temporary positioning plate which is used for temporarily fixedly connecting the inner core tube and the outer sleeve before assembly;
the temporary positioning plates are inserted into the annular interlayer between the inner core tube and the outer sleeve, and are fixedly connected with the inner core tube and the outer sleeve through fasteners.
Further, the depth of inserting the bottom end of the temporary positioning plate into the annular interlayer is flush with the top surface of the lower steel column and the bottom surface of the upper steel column after assembly, and the temporary positioning plate is used for quickly positioning the lower steel column and the lower steel column during construction and assembly.
Specifically, in the mill, interior core pipe and outer tube pass through the fixed integrative ring cover body that forms of temporary positioning board, during the construction, with the top of ring cover body suit at the steel column down earlier, when the top surface of steel column supports on the bottom surface of temporary positioning board down, assemble in place, accessible fastener is quick to connect fixedly both, then demolish temporary positioning board, insert the annular intermediate layer with last steel column in, go up the steel column lower extreme and support on the steel column top surface after, go up the steel column assembly in place, accessible fastener is quick with last steel column and interior core pipe and outer tube fixed connection.
Preferably, the thickness of the temporary positioning plate is equal to the wall thickness of the upper steel column.
Preferably, after the bottom end of the temporary positioning plate is inserted into the annular interlayer, the top of the temporary positioning plate protrudes out of the annular interlayer. Thereby being convenient for pulling out the temporary positioning plate in the later stage.
Further, plug welding holes are formed in the outer sleeve and the lower steel column, the outer sleeve and the upper steel column are fixed through the plug welding holes, and the inner core tube and the lower steel column are fixed through the plug welding holes.
Through the technical scheme of above-mentioned improvement, through plug welding hole with outer tube and inner core pipe respectively with last steel column and lower steel column fixed connection, the convenience when lifting steel column and lower steel column butt joint.
Further, the fastener is a self-tapping bolt.
The application discloses a building with the full-bolt double-tube column butt joint node structure, wherein the lower steel column is connected with a connecting pipe on a building foundation through an energy consumption sleeve;
the energy consuming sleeve comprises: an upper connecting piece, a lower connecting piece and an energy consumption plate;
the upper connecting piece is used for being connected with the lower steel column;
the lower connecting piece is used for being connected with the connecting pipe;
and two ends of the energy dissipation plate are respectively connected with the upper connecting piece and the lower connecting piece, and when the lower steel column and the connecting pipe are subjected to relative displacement, the energy dissipation plate is subjected to plastic deformation to consume energy.
Preferably, the foundation is a bearing platform, a frame column or a ground beam; the connecting pipe is a steel pipe section vertically arranged on the bearing platform, the frame column or the ground beam; or, the connecting pipe is a steel pipe pile.
Further, the energy consumption plate comprises an upper connecting part, a middle energy consumption part and a lower connecting part which are connected in sequence;
the upper connecting part is used for being connected with the upper connecting piece, and the lower connecting part is used for being connected with the lower connecting piece;
the middle energy consumption part is made of energy consumption metal materials, and two ends of the middle energy consumption part are fixedly connected with the upper connecting part and the lower connecting part respectively.
Wherein the energy dissipating metallic material is a plastically deformable material, such as energy dissipating mild steel.
Further, the middle energy consumption part is an energy consumption soft steel plate strip, and each energy consumption plate comprises a plurality of energy consumption soft steel plates which are distributed at intervals.
Preferably, the upper connection portion, the middle energy consumption portion, and the lower connection portion are integrally formed.
By adopting the technical scheme, the application has the following beneficial effects:
according to the full-bolt double-tube column butt joint node structure and the building thereof, when the upper steel column and the lower steel column are spliced, the inner core tube and the outer sleeve are fixedly connected with the upper steel column and the lower steel column by using the fasteners, so that welding is not performed any more, and the purpose of improving the construction efficiency of the steel structure building is achieved. When the building needs to be dismantled or rebuilt in different places, the upper steel column and the lower steel column can be separated by dismantling the fasteners and can be reused.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a detachable and recyclable double-tube column butt joint node structure according to embodiment 1 of the present application;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic structural view of an outer sleeve;
FIG. 4 is a schematic view of the structure of the inner core tube;
FIG. 5 is a schematic view of the structure of the outer sleeve and the inner core tube fixedly connected by the temporary positioning plate;
fig. 6 is a schematic view of a connection structure between a lower steel column and a foundation according to embodiment 2;
FIG. 7 is a schematic view of the energy dissipating plate shown in FIG. 6;
FIG. 8 is a schematic view of the lower and upper connectors of FIG. 6;
fig. 9 is an assembly schematic diagram of the reset structure in embodiment 2;
fig. 10 is a schematic structural diagram of a recoverable column base structure in embodiment 3;
fig. 11 is a schematic structural view of the upper and lower connectors in embodiment 4;
fig. 12 is a schematic structural view of the upper and lower connection members in embodiment 5.
Reference numerals:
1-loading a steel column; 3-an inner core tube; 4-an outer sleeve; 5-temporary positioning plates; 6-plug welding holes; 7-fastening piece, 10-lower steel column; 20-connecting pipes; 600-energy consumption sleeve; 610-upper connector; 611-upper web; 612-upper wing plate; 620-lower connector; 621-lower web; 622-lower wing plate; 630-energy consumption plate; 631-upper connection; 632-middle energy consumption part; 633-lower connection; 640-reset structure; 641-anchoring a top plate; 642-screw; 643-a return spring; 644-anchoring the base plate; 651-arc-shaped lath; 652-groove limiter; 670-steel ball; 671-upper hemisphere; 672-lower hemisphere; 673-steel pins; 674-thrust disc spring.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
As shown in fig. 1-4, the detachable and recyclable double-tube column butt joint node structure provided by the embodiment comprises an upper steel column 1, a lower steel column 10, an inner core tube 3 and an outer sleeve 4, wherein two ends of the inner core tube 3 are respectively inserted into the upper steel column 1 and the lower steel column 10, and the outer sleeve 4 is sleeved at the joint of the upper steel column 1 and the lower steel column 10; an annular interlayer is formed between the inner core tube 3 and the outer sleeve 4;
the lower end of the upper steel column 1 and the upper end of the lower steel column 10 are inserted into the annular interlayer;
the upper steel column 1 and the lower steel column 10 are fixedly connected with the inner core pipe 3 and the outer sleeve 4 through fasteners 7.
Through the technical scheme of the improvement, when the upper steel column 1 and the lower steel column 10 are spliced, the inner core tube 3 is firstly spliced in the lower steel column 10, then the outer sleeve 4 is sleeved at the upper end of the lower steel column 10, the inner core tube 3 and the outer sleeve 4 are fixedly connected with the lower steel column 10 by using the fastener 7, then the lower end of the upper steel column 1 is inserted between the inner core tube 3 and the outer sleeve 4, and the inner core tube 3 and the outer sleeve 4 are fixedly connected with the upper steel column 1 by using the fastener 7, so that the connection between the upper steel column 1 and the lower steel column 10 is finished, welding is not performed, and the aim of improving the construction efficiency of a steel structure building is fulfilled.
Preferably, the inner pipe wall of the outer sleeve 4 is attached to the outer pipe walls of the upper steel column 1 and the lower steel column 10. The inner diameter of the outer jacket tube 4 is preferably 2-4mm larger than the outer diameter of the upper steel column 1 and the lower steel column 10 at the time of factory production. And grooves of 45-60 degrees are formed in the opening edges of the upper end and the lower end of the outer sleeve 4 inwards, so that the insertion operation during construction is facilitated.
Further, the length of the outer sleeve 4 is 1.2 times or more the maximum outer diameter of the upper steel column 1 or the lower steel column 10. The height of the outer sleeve 4 is not less than the height of the inner core tube 3. The wall thickness of the outer sleeve 4 is larger than that of the upper steel column 1 or the lower steel column 10. Preferably, the wall thickness of the outer sleeve 4 is at least 2mm greater than the wall thickness of the upper and lower steel columns 1, 10.
When the upper steel column 1 or the lower steel column 10 is a circular column, the inner core tube 3 is preferably a circular tube section; and when the upper steel column 1 or the lower steel column 10 is a square column, the cross section of the inner core pipe 3 is a regular octagon, wherein four surfaces which are arranged at intervals are attached to the inner pipe walls of the upper steel column 1 and the lower steel column 10.
As shown in fig. 5, the embodiment further includes a temporary positioning plate 5 for temporarily fixedly connecting the inner core tube 3 and the outer sleeve 4 before assembly; the temporary positioning plates 5 are inserted into the annular interlayer between the inner core tube 3 and the outer sleeve 4, and the temporary positioning plates 5 are fixedly connected with the inner core tube 3 and the outer sleeve 4 through fasteners 7.
The depth of inserting the bottom end of the temporary positioning plate 5 into the annular interlayer is flush with the top surface of the assembled lower steel column 10 and the bottom surface of the upper steel column 1, and the temporary positioning plate is used for quickly positioning the lower steel column 10 and the lower steel column 10 during construction and assembly.
Specifically, in the mill, inner core tube 3 and outer tube 4 pass through temporary locating plate 5 to be fixed and form an holistic ring cover body, during the construction, with the top of ring cover body suit at lower steel column 10 earlier, when the top surface of lower steel column 10 supports on the bottom surface of temporary locating plate 5, assemble in place, accessible fastener 7 is quick to connect both fixedly, then demolish temporary locating plate 5, insert annular intermediate layer with last steel column 1, go up steel column 1 lower extreme and support on the top surface of last steel column 1 after, go up steel column 1 and assemble in place, accessible fastener 7 is quick with last steel column 1 and inner core tube 3 and outer tube 4 fixed connection.
Preferably, the thickness of the temporary positioning plate 5 is equal to the wall thickness of the upper steel column 1. And after the bottom end of the temporary positioning plate 5 is inserted into the annular interlayer, the top of the temporary positioning plate 5 protrudes out of the annular interlayer. Thereby facilitating the later extraction of the temporary positioning plate 5.
The outer sleeve 4 and the lower steel column 10 are provided with plug welding holes 6, the outer sleeve 4 and the upper steel column 1 are fixed through the plug welding holes 6, and the inner core pipe 3 and the lower steel column 10 are fixed through the plug welding holes 6. The fastener 7 is preferably a self-tapping bolt.
Through the above-mentioned modified technical scheme, through plug welding hole 6 with outer tube 4 and inner core pipe 3 respectively with last steel column 1 and lower steel column 10 fixed connection, the convenience when lifting the butt joint of last steel column 1 and lower steel column 10.
When the upper steel column 1 and the lower steel column 10 are spliced, the inner core tube 3 and the outer sleeve 4 are fixedly connected with the upper steel column 1 and the lower steel column 10 by the fastener 7, so that welding is not performed any more, and the aim of improving the construction efficiency of the steel structure building is fulfilled. When the building needs to be dismantled or rebuilt in different places, the upper steel column 1 and the lower steel column 10 can be separated by dismantling the fastener 7 and can be reused.
Example 2
The embodiment discloses a building with the full-bolt double-tube column butt joint node structure.
Referring to fig. 6, the lower steel column 10 is connected with a connection pipe 20 on the foundation of the building through an energy dissipation sleeve 600; in this embodiment, the foundation is a ground beam structure, and the connection pipe 20 is vertically disposed at a connection position of two ground beams.
Referring to fig. 7 and 8, the dissipative sleeve 600 includes: an upper connector 610, a lower connector 620, and an energy consuming plate 630; the upper connector 610 is used for connecting with the lower steel column 10; the lower connector 620 is for connecting with the connection pipe 20; the two ends of the energy dissipation plate 630 are respectively connected with the upper connector 610 and the lower connector 620, and when the lower steel column 10 and the connecting pipe 20 are relatively displaced, the energy dissipation plate 630 is elastically deformed or plastically deformed to consume energy.
The energy dissipation plate 630 includes an upper connection portion 631, an intermediate energy dissipation portion 632, and a lower connection portion 633, which are sequentially connected; the upper connection part 631 is connected to the upper connection member 610, and the lower connection part 633 is connected to the lower connection member 620; the middle energy dissipation portion 632 is made of energy dissipation metal material, and two ends of the middle energy dissipation portion 632 are fixedly connected with the upper connection portion 631 and the lower connection portion 633 respectively. In this embodiment, the energy-dissipating metal material is energy-dissipating mild steel.
Further, the middle energy dissipating portion 632 is an energy dissipating soft steel plate, and each energy dissipating plate 630 includes a plurality of energy dissipating soft steel plates arranged at intervals. Preferably, the upper connection part 631, the middle energy dissipation part 632, and the lower connection part 633 are integrally formed.
The upper connecting piece 610 is cross-shaped or m-shaped, and comprises an upper web 611 which is distributed in a cross shape or m-shaped, and an upper wing plate 612 is vertically arranged at the end part of the upper web 611; the upper connection portion 631 of the energy dissipating plate 630 is fixedly connected to the upper wing plate 612;
and, the lower connector 620 is cross-shaped or in a shape like a Chinese character 'mi', comprising a lower web 621 arranged in a cross-shaped or in a shape like a Chinese character 'mi', and a lower wing plate 622 is vertically arranged at the end part of the lower web 621; the lower connection portion 633 of the energy dissipating plate 630 is fixedly connected to the lower wing plate 622.
Referring to fig. 9, the present embodiment further includes a reset structure 640, where the reset structure 640 includes: the upper connector 610 is provided with an anchoring top plate 641, an anchoring bottom plate 644 and a return spring 643, wherein the anchoring top plate 641 is arranged on the upper connector 620 and the return spring 643 is arranged on the lower connector 620.
In this embodiment, the energy dissipation sleeve 600 is a rectangular cylindrical body, and the reset structure 640 is symmetrically arranged in the front-rear direction and the left-right direction of the energy dissipation sleeve 600; and when the power consumption sleeve 600 is circular or regular polygon, the reset structure 640 is uniformly distributed in the circumferential direction of the power consumption sleeve 600.
The two ends of the return spring 643 are abutted against the anchoring top plate 641 and the anchoring bottom plate 644, and when in operation or after being installed in place, the return spring 643 is compressed to form a pretightening force, and tends to centralize the upper connecting piece 610 and the lower steel column 10. That is, when the lower steel column 10 and the connection pipe 20 are relatively displaced, the upper connection member 610 and the lower steel column 10 are forced to be restored by the pre-tightening force of the restoring spring 643 in the restoring structure 640.
When the lower steel column 10 is deflected or swayed under the action of external force, the energy dissipation plates 630 in the energy dissipation sleeve 600 are subjected to plastic deformation and energy dissipation, so that the damage of the external force to the lower steel column 10 is eliminated. Meanwhile, the reset spring 643 straightens the lower steel column 10 and the upper steel column 1 above through the pretightening force, so that the damage of a building in natural disasters such as earthquakes and the like is avoided, the cost for recovering the use function is reduced, and the function restorability of the closed section steel column foot is improved.
Preferably, the return spring 643 is a disc spring. The reset structure 640 is disposed outside the energy consuming plate 630.
The reset spring 643 is fixed by a screw 642 and a nut; the anchoring top plate 641 and the anchoring bottom plate 644 are respectively provided with a via hole; the screw 642 is inserted into the two through holes, and the reset spring 643 is sleeved on the screw 642; the two ends of the screw 642 are fixedly connected with the anchoring top plate 641 and the anchoring bottom plate 644 through nuts.
By tightening the nuts at the ends of the screw 642, the spacing between the anchor top plate 641 and the anchor bottom plate 644 can be adjusted, as well as the amount of preload of the return spring 643.
Optionally, the anchoring roof 641 is fixedly disposed on the upper connector 610 or the lower steel column 10; the anchoring bottom 644 is fixedly provided to the lower connector 620 or the connection pipe 20.
In this embodiment, the upper wing plate 612 may be connected and fixed to the lower steel column 10 by bolts, riveting or welding; the lower wing plate 622 may be connected and fixed to the connection pipe 20 by bolts, rivets or welding.
The embodiment realizes the function restorability of the closed section steel column, does not occupy the use space of the building, does not influence the use function of the building, and realizes the efficient assembly construction of the building; in the aspect of stress, the function recovery and the energy dissipation can be realized, and the good performance of the small-vibration rigid column foot can be realized.
Example 3
This embodiment is substantially the same as embodiment 2 except that:
referring to fig. 10, the present embodiment further includes an arc-shaped lath 651 made of energy-dissipating soft steel, wherein connection holes are formed at two ends of the arc-shaped lath 651, and the connection holes at two ends of the arc-shaped lath 651 are respectively fastened and fixed by nuts after being sleeved at two ends of the screw 642, so that two ends of the arc-shaped lath 651 are fixedly connected with the anchoring top plate 641 and the anchoring bottom plate 644.
One or more of the arcuate strips 651 may optionally be disposed outside of one or more of the return springs 643 to reinforce the partially or fully failed energy consuming plate 630 against which the return spring 643 is facing.
When part or all of the middle energy dissipation portions 632 in the energy dissipation plate 630 fail and cannot be subjected to normal plastic deformation to dissipate energy, an arc-shaped lath 651 can be additionally arranged on the outer side of the failed middle energy dissipation portion 632, the arc-shaped lath 651 is connected to two ends of the screw 642 facing the failed middle energy dissipation portion 632 through connecting holes, and when the lower steel column 10 and the upper steel column 1 displace relative to the connecting pipe 20, the arc-shaped lath 651 deforms accordingly and plays a role in dissipating energy. The whole maintenance process is simple and quick.
More preferably, the embodiment further comprises a groove-shaped limiter 652, the groove-shaped limiter 652 is a U-shaped channel steel, connecting holes are formed in two ends of the U-shaped channel steel, the anchoring top plate 641 and the anchoring bottom plate 644 are inserted into the U-shaped groove of the groove-shaped limiter 652, and the connecting holes in two ends of the groove-shaped limiter 652 are sleeved on two ends of the screw 642.
The groove stopper 652 limits the maximum displacement between the lower steel column 10 and the connection pipe 20 using the groove width of the U-shaped groove. The deformation of the column base is prevented from being excessively large to damage the structure, only partial rigidity is provided for the joint in small earthquake, the structure is limited to be deformed up and down in medium earthquake, the structural rigidity, comfort level and the like are prevented from being excessively influenced, the deformation of the joint can be limited in large earthquake, and the main structure can be protected after the deformation is large.
Example 4
This embodiment is substantially the same as embodiments 2-3, except that:
referring to fig. 11, the embodiment further includes a steel ball 670, and a lower circular arc groove is formed in the top center of the lower web 621; an upper arc groove is formed in the bottom center of the upper web 611; the upper arc groove and the lower arc groove are arranged up and down oppositely at intervals, so that a spherical space is formed, and the steel ball 670 is rotatably embedded in the spherical space. The upper part of the steel ball 670 is inserted into the upper circular arc groove, the lower part of the steel ball 670 is inserted into the lower circular arc groove, and the steel ball 670 is respectively abutted against the lower web 621 and the upper web 611 up and down, so as to realize the transmission of supporting force from the lower connecting piece 620 to the upper connecting piece 610. The steel ball 670 is rotatably arranged, when the lower steel column 10 shakes during an earthquake, a hinge structure is formed between the steel ball 670 and the lower arc groove and between the steel ball 670 and the upper arc groove, and the lower steel column 10 is allowed to swing freely, so that the energy consumption plate 630 starts working to consume energy; after the shaking is finished, the lower steel column 10 can be quickly reset under the action of the pretightening force of the reset spring 643. Whether in the process of energy consumption or resetting, the steel ball 670 plays a main bearing role, so that the load of the energy consumption plate 630 is greatly reduced, meanwhile, the reset spring 643 is prevented from being excessively extruded to fail, the normal energy consumption and resetting effects of the two are ensured, and the service lives of the energy consumption plate 630 and the reset spring 643 are greatly prolonged.
Example 5
This embodiment is substantially the same as embodiment 4 except that:
referring to fig. 12, the present embodiment includes: an upper hemisphere 671, a lower hemisphere 672, a steel pin 673 and a thrust disc spring 674; the upper hemisphere 671 and the lower hemisphere 672 are opposite from top to bottom and are arranged at intervals; an upper shaft hole is formed in the center of the bottom surface of the upper hemisphere 671, and a lower shaft hole is formed in the center of the top surface of the lower hemisphere 672; the upper part of the steel pin 673 can be inserted into the upper shaft hole in a relatively sliding manner, and the lower part of the steel pin 673 can be inserted into the lower shaft hole in a relatively sliding manner; the upper hemisphere 671 and the lower hemisphere 672 are relatively close and far away by a steel pin 673; the thrust disc spring 674 is sleeved on the steel pin 673 and is disposed between the upper hemisphere 671 and the lower hemisphere 672.
A lower arc groove is formed in the center of the top of the lower web 621; an upper arc groove is formed in the bottom center of the upper web 611; the upper arc groove and the lower arc groove are arranged vertically opposite and at intervals, the upper hemisphere 671 is inserted into the upper arc groove, and the lower hemisphere 672 is inserted into the lower arc groove; in assembly or operation, the thrust disc spring 674 is compressed and the upper and lower hemispheres 671, 672 bear against the upper and lower webs 611, 621, respectively, under the spring force of the thrust disc spring 674 for effecting the transfer of support force from the lower connector 620 to the upper connector 610.
In embodiment 4, during long-term use or large-level earthquake, the lower steel column 10 and the upper connecting piece 610 are displaced or deflected to a larger extent due to the larger deformation of the column foot structure, and the upper web 611 is temporarily or permanently separated from the steel ball 670, so that the load applied to the energy dissipation plate 630 and the return spring 643 is suddenly increased, and the energy dissipation plate 630 and the return spring 643 cannot work normally or even are damaged.
While the upper hemisphere 671 and the lower hemisphere 672 in the present embodiment are always abutted against the upper web 611 and the lower web 621 under the action of the spring force of the thrust disc spring 674, even if the column foot structure is greatly deformed, the lower steel column 10 and the upper connecting member 610 are displaced or deflected in a larger size, and the upper hemisphere 671 and the lower hemisphere 672 are always abutted against the lower web 621 and the upper web 611 under the action of the spring force of the thrust disc spring 674, so that the normal transmission of the supporting force from the lower connecting member 620 to the upper connecting member 610 is smoothly realized. The sudden increase of the load applied to the energy consumption plate 630 and the return spring 643, which causes the energy consumption plate 630 and the return spring 643 to not work normally, and even to be destroyed, is avoided.
Wherein, to prevent the upper hemisphere 671 and the lower hemisphere 672 from tilting, one of the upper hemisphere 671 and the lower hemisphere 672 may be fixedly connected to the upper web 611 or the lower web 621 by welding.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (9)

1. The utility model provides a can dismantle double-barreled post butt joint node structure of cyclic use which characterized in that includes upper steel column, lower steel column, interior core pipe and outer tube, and the both ends of interior core pipe are pegged graft respectively in upper steel column and lower steel column, and the outer tube pipe cover is established in the junction of upper steel column and lower steel column; an annular interlayer is formed between the inner core tube and the outer sleeve;
the lower end of the upper steel column and the upper end of the lower steel column are inserted into the annular interlayer;
the upper steel column and the lower steel column are fixedly connected with the inner core pipe and the outer sleeve through fasteners;
the temporary positioning plate is used for temporarily fixedly connecting the inner core tube and the outer sleeve before assembly;
the temporary positioning plates are inserted into the annular interlayer between the inner core tube and the outer sleeve, and are fixedly connected with the inner core tube and the outer sleeve through fasteners.
2. The double-tube column butt joint node structure according to claim 1, wherein the inner tube wall of the outer sleeve is disposed in contact with the outer column walls of the upper and lower steel columns.
3. The double-tube column butt joint node structure according to claim 1, wherein the opening edges of the upper end and the lower end of the outer sleeve are provided with grooves of 45 degrees to 60 degrees inwards.
4. The double-pipe column butt joint node structure according to claim 1, wherein the length of the outer sleeve is 1.2 times or more the maximum outer diameter of the upper or lower steel column.
5. The double-barreled column butt joint node structure according to claim 1, wherein the height of the outer sleeve is not less than the height of the inner core tube.
6. The double-pipe column butt joint node structure according to claim 1, wherein the upper steel column or the lower steel column is a circular column, and the inner core pipe is a circular pipe section;
or the upper steel column or the lower steel column is a square column, and the cross section of the inner core pipe is regular octagon.
7. The double-pipe column butt joint node structure according to claim 1, wherein the depth of the bottom end of the temporary positioning plate inserted into the annular interlayer is flush with the top surface of the assembled lower steel column and the bottom surface of the upper steel column, and is used for quickly positioning the lower steel column and the lower steel column in construction and assembly.
8. The double-pipe column butt joint node structure according to claim 1, wherein the outer sleeve and the lower steel column are provided with plug welding holes, the outer sleeve and the upper steel column are fixed through the plug welding holes, and the inner core tube and the lower steel column are fixed through the plug welding holes.
9. A building with a double-pipe column butt joint node structure according to any one of claims 1-8, characterized in that the lower steel column is connected with a connecting pipe on the building foundation through an energy consumption sleeve;
the energy consuming sleeve comprises: an upper connecting piece, a lower connecting piece and an energy consumption plate;
the upper connecting piece is used for being connected with the lower steel column;
the lower connecting piece is used for being connected with the connecting pipe;
and two ends of the energy dissipation plate are respectively connected with the upper connecting piece and the lower connecting piece, and when the lower steel column and the connecting pipe are subjected to relative displacement, the energy dissipation plate is subjected to plastic deformation to consume energy.
CN202311137608.4A 2023-09-05 2023-09-05 Detachable and recyclable double-tube column butt joint node structure and building thereof Active CN116856563B (en)

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JP2007162289A (en) * 2005-12-13 2007-06-28 Hironobu Kuroda Building steel structure
CN208121985U (en) * 2018-03-22 2018-11-20 乔小平 A kind of butting rod piece bolt connection node system of assembled architecture
CN210767219U (en) * 2019-08-22 2020-06-16 班来科技(北京)有限公司 Connecting node structure of full-bolted steel beam and steel column
CN111809749A (en) * 2020-07-28 2020-10-23 西安建筑科技大学 Column splicing node
US11155989B1 (en) * 2020-07-13 2021-10-26 Qingdao university of technology Double-steel tube concrete beam-column joint with internal fiber reinforced polymer (FRP) bar connectors and assembly method
CN214833442U (en) * 2021-05-10 2021-11-23 国材(北京)建筑科学研究院有限公司 Steel structure beam column joint convenient to construct
CN114439152A (en) * 2022-02-28 2022-05-06 北京建筑大学 Core barrel type flange circular steel pipe column joint with self-tapping bolts and construction method thereof
CN114809444A (en) * 2022-01-19 2022-07-29 合肥工业大学 Column base joint containing disc spring bolt assembly
CN115341655A (en) * 2022-06-30 2022-11-15 北京建筑大学 Assembled steel structure inner and outer sleeve column splicing joint and construction method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007162289A (en) * 2005-12-13 2007-06-28 Hironobu Kuroda Building steel structure
CN208121985U (en) * 2018-03-22 2018-11-20 乔小平 A kind of butting rod piece bolt connection node system of assembled architecture
CN210767219U (en) * 2019-08-22 2020-06-16 班来科技(北京)有限公司 Connecting node structure of full-bolted steel beam and steel column
US11155989B1 (en) * 2020-07-13 2021-10-26 Qingdao university of technology Double-steel tube concrete beam-column joint with internal fiber reinforced polymer (FRP) bar connectors and assembly method
CN111809749A (en) * 2020-07-28 2020-10-23 西安建筑科技大学 Column splicing node
CN214833442U (en) * 2021-05-10 2021-11-23 国材(北京)建筑科学研究院有限公司 Steel structure beam column joint convenient to construct
CN114809444A (en) * 2022-01-19 2022-07-29 合肥工业大学 Column base joint containing disc spring bolt assembly
CN114439152A (en) * 2022-02-28 2022-05-06 北京建筑大学 Core barrel type flange circular steel pipe column joint with self-tapping bolts and construction method thereof
CN115341655A (en) * 2022-06-30 2022-11-15 北京建筑大学 Assembled steel structure inner and outer sleeve column splicing joint and construction method

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