CN113737972A - External ring beam construction column expansion joint structure and construction method thereof - Google Patents

External ring beam construction column expansion joint structure and construction method thereof Download PDF

Info

Publication number
CN113737972A
CN113737972A CN202111146935.7A CN202111146935A CN113737972A CN 113737972 A CN113737972 A CN 113737972A CN 202111146935 A CN202111146935 A CN 202111146935A CN 113737972 A CN113737972 A CN 113737972A
Authority
CN
China
Prior art keywords
ring beam
expansion joint
constructional column
column
external ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111146935.7A
Other languages
Chinese (zh)
Inventor
董有
鞠树森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Zhufu International Anti Seismic Technology Co ltd
Original Assignee
Beijing Zhufu International Anti Seismic Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Zhufu International Anti Seismic Technology Co ltd filed Critical Beijing Zhufu International Anti Seismic Technology Co ltd
Priority to CN202111146935.7A priority Critical patent/CN113737972A/en
Publication of CN113737972A publication Critical patent/CN113737972A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • 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
    • E04B1/388—Separate connecting elements
    • 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
    • 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
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention relates to an external ring beam constructional column expansion joint structure and a construction method thereof, wherein the external ring beam constructional column expansion joint structure comprises an external ring beam, an external constructional column and an L-shaped anchor bar; the external constructional columns are arranged on two sides of the expansion joint; the external constructional column on each side is integrally cast with the external ring beam respectively to form a closed whole along the periphery of the building; the external constructional column is connected with the original structural wall body by adopting L-shaped anchor bars; grouting anchor slurry of the L-shaped anchor bars in the wall anchor hole by adopting A-level structural adhesive; the L-shaped anchor bars are bound and poured with the main bars of the constructional column and the hooping of the constructional column.

Description

External ring beam construction column expansion joint structure and construction method thereof
Technical Field
The invention relates to an external ring beam constructional column expansion joint structure and a construction method thereof, belonging to the technical field of comprehensive reconstruction of existing buildings.
Background
At present, masonry structure houses are the main structural form in the existing buildings in China, and account for more than sixty percent of civil buildings. However, the basic materials and connection mode of the masonry structure determine the shortages of brittle property, small deformation capability, poor seismic performance and the like of the structure, and the seismic damage is serious in the earthquake of all times. Therefore, the research on the seismic reinforcement of masonry structures is an important problem to be solved in the current structural engineering. The most common reinforcement method of masonry structures is an earthquake-resistant reinforcement method that an outer wall adopts reinforced concrete ring beams, constructional columns and inner transverse walls with steel pull rods, and the reinforcement method is safe and reliable after multiple earthquake verifications, and particularly the anti-structural collapse capability is obviously improved, so the reinforcement method is often adopted in earthquake-resistant reinforcement. Although the reinforcement method is practical, some nodes need to be researched in practical engineering, and the invention mainly aims at the structural nodes of the expansion joint structure of the externally-added ring beam structural column and the construction method thereof.
Disclosure of Invention
The invention provides an external ring beam constructional column expansion joint structure and a construction method thereof, and mainly aims to enhance the collapse resistance of the structure. The technical scheme of the invention is as follows:
the expansion joint structure of the externally-added ring beam constructional column and the construction method thereof comprise an externally-added ring beam, an externally-added constructional column and an L-shaped anchor bar; the external constructional columns are arranged on two sides of the expansion joint; the external constructional column on each side is integrally cast with the external ring beam respectively to form a closed whole along the periphery of the building; the external constructional column is connected with the original structural wall body by adopting L-shaped anchor bars; grouting anchor slurry of the L-shaped anchor bars in the wall anchor hole by adopting A-level structural adhesive; the L-shaped anchor bars are bound and poured with the main bars and the hooping bars of the constructional column; the concrete strength grades of the external ring beam and the external constructional column are not lower than C35; the constructional column stirrups are encrypted within the length range of 500mm above and below the floor (house) plate, and the distance between the constructional column stirrups and the floor (house) plate is not more than 100 mm; the height of the external ring beam is equal to the height of the building (house) cover.
Further, the main reinforcement of the constructional column is hot-rolled steel reinforcement of HBP300 or HRB335 grade of 4 phi 12.
Furthermore, the diameter of an anchor hole of the L-shaped anchor bar is 18-25 mm, and the anchoring depth is 150-200 mm.
Furthermore, the diameter of the L-shaped anchor bar is not less than 14.
Furthermore, the constructional column stirrup and the ring beam stirrup are hot-rolled steel bars with the grade of phi 10 HBP300 or HRB335, and the spacing between the constructional column stirrup and the ring beam stirrup is not more than 100 mm.
Furthermore, the height of the section of the external ring beam is not less than 180mm, and the width of the external ring beam is not less than 120 mm.
Furthermore, the externally-added constructional column does not independently arrange a foundation, and extends 500mm below the outdoor ground or is connected with a foundation ring beam with the buried depth of less than 500 mm.
Further, the additional constructional column adopts a section of 240mm multiplied by 180 mm.
The expansion joint structure of the externally-added ring beam structure column and the construction method thereof adopt the following steps:
the method comprises the following steps: and (4) blanking the L-shaped anchor bars and the reinforcing steel bars according to a design drawing.
Step two: before construction, the shortness alkali, oil stain or the veneer layer of the wall surface is removed, and the wall surface to be constructed is plastered and reinforced.
Step three: according to a design drawing, drilling anchor holes in the original structure wall, wherein the depth is 150-200 mm.
Step four: and (4) arranging steel bars and stirrups before pouring the L-shaped anchor bars and the external ring beam, and supporting a template.
Step five: grouting A-level structural adhesive into an anchor hole of an L-shaped anchor bar on one side of the expansion joint, and simultaneously performing integral concrete pouring on the externally-added constructional column and the externally-added ring beam.
Step six: and repeating the step five on the other side of the expansion joint.
Step seven: and the top of the external ring beam is well flooded outwards, and the bottom surface of the external ring beam is provided with a water dripping groove.
Has the advantages that:
the most obvious advantage of the invention is that the external constructional columns, the external ring beams and the L-shaped anchor bars on the two sides of the expansion joint are respectively integrally poured, so that new and old structures on the two sides of the expansion joint are reliably connected with each other in a pulling way, the common stress is ensured, and the rigidity mutation of each layer is prevented.
Drawings
Fig. 1 is a schematic plan view of an expansion joint structure of an externally-added ring beam structural column.
In the figure, 1: an external ring beam; 2: externally adding a constructional column; 3: l-shaped anchor bars; 4: an anchor eye; 5: an original structure wall body; 6: structural column main reinforcement 7: constructing a column stirrup; 8: an expansion joint.
Detailed Description
An external ring beam constructional column expansion joint structure and a construction method thereof are shown in figure 1 and comprise an external ring beam 1, an external constructional column 2 and an L-shaped anchor bar 3; the external constructional columns 2 are arranged on two sides of the expansion joint 8; the externally-added constructional column 2 on each side is integrally cast with the externally-added ring beam 1 respectively to form a closed whole along the periphery of the building; the externally-added constructional column 2 is connected with the original structural wall 5 by adopting an L-shaped anchor bar 3; the anchor slurry of the L-shaped anchor bars 3 in the wall anchor holes 4 is grouted by adopting A-level structural adhesive; the L-shaped anchor bars 3 are bound and poured with the constructional column main bars 6 and the constructional column stirrups 7; the concrete strength grades of the external ring beam 1 and the external constructional column 2 are not lower than C35; the constructional column stirrups 7 are encrypted within the length range of 500mm above and below the floor (house) plate, and the distance between the constructional column stirrups is not more than 100 mm; the height of the external ring beam 1 is equal to the height of the building (house) cover.
Further, the constructional column main reinforcement 6 is a hot-rolled steel reinforcement of HBP300 or HRB335 grade of 4 phi 12.
Furthermore, the diameter of the anchor hole 4 of the L-shaped anchor bar 3 is 18 mm-25 mm, and the anchoring depth is 150 mm-200 mm.
Furthermore, the diameter of the L-shaped anchor bar 3 is not less than 14.
Furthermore, the constructional column stirrup 7 and the ring beam stirrup are hot-rolled steel bars with phi 10 grade HBP300 or HRB335, and the distance between the constructional column stirrup and the ring beam stirrup is not more than 100 mm.
Further, the height of the section of the external ring beam 1 is not less than 180mm, and the width of the section of the external ring beam is not less than 120 mm.
Furthermore, the additional constructional column 2 is not provided with a foundation independently and extends 500mm below the outdoor ground or is connected with a foundation ring beam with the buried depth of less than 500 mm.
Further, the additional constructional column 2 adopts a section of 240mm x 180 mm.
The expansion joint structure of the externally-added ring beam structure column and the construction method thereof adopt the following steps:
the method comprises the following steps: and (4) according to a design drawing, blanking the L-shaped anchor bars 3 and the reinforcing steel bars.
Step two: before construction, the shortness alkali, oil stain or the veneer layer of the wall surface is removed, and the wall surface to be constructed is plastered and reinforced.
Step three: according to a design drawing, drilling an anchor hole in the original structure wall 5, wherein the depth is 150 mm-200 mm.
Step four: and (3) arranging the steel bars and the stirrups before pouring the L-shaped anchor bars 3 and the external ring beam 1, and supporting the template.
Step five: the method comprises the steps of firstly grouting A-level structural adhesive into an anchor hole 4 of an L-shaped anchor bar 3 at one side of an expansion joint 8, and simultaneously performing integral concrete pouring on an external constructional column 2 and an external ring beam 1.
Step six: and repeating the step five on the other side of the expansion joint 8.
Step seven: the top of the external ring beam 1 is well flooded outwards, and the bottom surface is provided with a drip groove.
The above is a typical embodiment of the present invention, and the specific implementation of the present invention is not limited thereto.

Claims (9)

1. The expansion joint structure of the externally added ring beam structure column and the construction method thereof are characterized in that: comprises an external ring beam (1), an external constructional column (2) and an L-shaped anchor bar (3); the additional constructional columns (2) are arranged on two sides of the expansion joint (8); the externally-added constructional column (2) on each side is integrally cast with the externally-added ring beam (1) respectively to form a closed whole along the periphery of the building; the externally-added constructional column (2) is connected with the original structural wall (5) by adopting an L-shaped anchor bar (3); the anchor slurry of the L-shaped anchor bars (3) in the wall anchor holes (4) is grouted by adopting A-level structural adhesive; the L-shaped anchor bars (3) are bound and poured with the constructional column main bars (6) and the constructional column stirrups (7); the concrete strength grades of the external ring beam (1) and the external constructional column (2) are not lower than C35; the constructional column stirrups (7) are encrypted within the length range of 500mm above and below the floor (house) plate, and the distance between the constructional column stirrups is not more than 100 mm; the height of the external ring beam (1) is equal to the height of the building (house) cover.
2. The structure of expansion joint structure of external ring beam structure column and its construction method as claimed in claim 1, wherein: the main reinforcement (6) of the constructional column is hot-rolled steel bar of 4 phi 12 grade HBP300 or HRB335 grade.
3. The structure of expansion joint structure of external ring beam structure column and its construction method as claimed in claim 1, wherein: the diameter of the anchor hole (4) of the L-shaped anchor bar (3) is 18-25 mm, and the anchoring depth is 150-200 mm.
4. The structure of expansion joint structure of external ring beam structure column and its construction method as claimed in claim 1, wherein: the diameter of the L-shaped anchor bar (3) is not less than phi 14.
5. The structure of expansion joint structure of external ring beam structure column and its construction method as claimed in claim 1, wherein: the constructional column stirrup (7) and the ring beam stirrup are hot rolled steel bars with the grade of phi 10 HBP300 or HRB335, and the distance between the constructional column stirrup and the ring beam stirrup is not more than 100 mm.
6. The structure of expansion joint structure of external ring beam structure column and its construction method as claimed in claim 1, wherein: the height of the section of the external ring beam (1) is not less than 180mm, and the width of the external ring beam is not less than 120 mm.
7. The structure of expansion joint structure of external ring beam structure column and its construction method as claimed in claim 1, wherein: the additional constructional column (2) is not provided with a foundation independently and extends 500mm below the outdoor ground or is connected with a foundation ring beam with the buried depth of less than 500 mm.
8. The structure of expansion joint structure of external ring beam structure column and its construction method as claimed in claim 1, wherein: the additional constructional column (2) adopts a section of 240mm multiplied by 180 mm.
9. The structure of an expansion joint structure of an externally-added ring beam structure column and the construction method thereof as claimed in any one of claims 1 to 8, wherein: the method comprises the following steps:
the method comprises the following steps: and (4) blanking the L-shaped anchor bars (3) and the reinforcing steel bars according to a design drawing.
Step two: before construction, the shortness alkali, oil stain or the veneer layer of the wall surface is removed, and the wall surface to be constructed is plastered and reinforced.
Step three: according to a design drawing, drilling anchor holes with the depth of 150-200 mm in the original structure wall body (5).
Step four: and arranging the steel bars and the stirrups before pouring the L-shaped anchor bars (3) and the external ring beam (1), and supporting the template.
Step five: the method comprises the steps of grouting A-level structural adhesive into an anchor hole (4) of an L-shaped anchor bar (3) on one side of an expansion joint (8), and simultaneously performing integral concrete pouring on an external constructional column (2) and an external ring beam (1).
Step six: and repeating the fifth step on the other side of the expansion joint (8).
Step seven: the top of the external ring beam (1) is provided with an outward flashing, and the bottom surface is provided with a water dripping groove.
CN202111146935.7A 2021-09-28 2021-09-28 External ring beam construction column expansion joint structure and construction method thereof Pending CN113737972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111146935.7A CN113737972A (en) 2021-09-28 2021-09-28 External ring beam construction column expansion joint structure and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111146935.7A CN113737972A (en) 2021-09-28 2021-09-28 External ring beam construction column expansion joint structure and construction method thereof

Publications (1)

Publication Number Publication Date
CN113737972A true CN113737972A (en) 2021-12-03

Family

ID=78741642

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111146935.7A Pending CN113737972A (en) 2021-09-28 2021-09-28 External ring beam construction column expansion joint structure and construction method thereof

Country Status (1)

Country Link
CN (1) CN113737972A (en)

Similar Documents

Publication Publication Date Title
WO2018214477A1 (en) Prefabricated dual-steel-tube concrete shear wall, and assembly method therefor
CN110486018B (en) Lattice type composite shaft structure and construction method
CN105089061A (en) Ultra-deep foundation pit supporting method
CN107355077A (en) A kind of basement barricade single side formwork reinforcing device and method
CN207228617U (en) A kind of concrete-pouring template float Structure for basement barricade single side formwork
CN103924710A (en) Steel plate welding node structure of low-layer assembly type composite wall house
CN107355008B (en) Prefabricated connection structure and method for newly added concrete filled steel tubular column and existing structure
CN111395745A (en) Basement outer wall single-face formwork supporting system and construction method thereof
CN108625491B (en) Assembled H profile steel column-isolated footing-concrete collar tie beam L shape connecting node
CN207245188U (en) A kind of basement barricade single side formwork bracing means
KR20220019346A (en) Underground expansion and top-down method of new building using reinforcement of existing underground outer wall
CN216380019U (en) Expansion joint structure of external ring beam structure column
CN217353526U (en) Deep basal pit single face template bearing structure
CN216740195U (en) Shear wall mixed structure system connected by grouting sleeve
CN113737972A (en) External ring beam construction column expansion joint structure and construction method thereof
CN205421332U (en) Contrary coincide underground continuous wall that does of a core section of thick bamboo
CN108412036A (en) Assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node
CN217232858U (en) Angle column of masonry structure reinforced by external ring beam structure column reinforced by anchor bars
CN216974265U (en) The external ring beam is connected with the original structure wall body by adopting L-shaped anchor bars
CN216380688U (en) Corner post for reinforcing masonry structure by adopting externally-added ring beam structure post and mud jacking anchor rod
CN216974264U (en) Masonry structure
CN201794216U (en) Reinforced concrete prefabricated beam pre-stressed by pre-tensioning method
CN216974266U (en) The external ring beam is connected with the original structure wall body by adopting a concrete pin key
CN113756603A (en) Method for connecting externally-added ring beam with original structure wall body by adopting L-shaped anchor bars and construction method
CN216076469U (en) Single-span transverse wall reinforced masonry structure additionally provided with steel pull rods and ring beam constructional columns

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination