CN107355008A - A kind of prefabricated attachment structure and method of newly-increased steel core concrete column and existing structure - Google Patents
A kind of prefabricated attachment structure and method of newly-increased steel core concrete column and existing structure Download PDFInfo
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- CN107355008A CN107355008A CN201710780007.3A CN201710780007A CN107355008A CN 107355008 A CN107355008 A CN 107355008A CN 201710780007 A CN201710780007 A CN 201710780007A CN 107355008 A CN107355008 A CN 107355008A
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- backing plate
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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
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- 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
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- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses the prefabricated attachment structure and method of a kind of newly-increased steel core concrete column and existing structure, the prefabricated attachment structure includes the connecting plate for backing plate of being put more energy into described in two pieces of backing plates of putting more energy into be arrangeding in parallel, connection, and some connecting holes are provided with the backing plate of putting more energy into；Split bolt is provided with the connecting hole, the split bolt runs through all backing plates of putting more energy into be arrangeding in parallel, and the both ends of the split bolt are connected by nut with backing plate of putting more energy into；The both ends of the split bolt extend outward the backing plate of putting more energy into and form connection end；Plug hole is additionally provided with the backing plate of putting more energy into.Steel pipe column and attachment structure in the present invention can be prefabricated in the factory, improve efficiency of construction, shorten the construction period.The present invention opens bolt hole in advance on steel pipe column, is connected by screw bolts, and reduces Site Welding operation, convenient construction.In casting concrete, it can increase vertical reinforcement in Ban Dongchu, the connection of lower floor's post and upper strata post can be strengthened；It ensure that the quality of construction.
Description
Technical field
The invention belongs to technical field of building construction, and in particular to a kind of newly-increased steel core concrete column and existing structure it is pre-
Attachment structure and method processed.
Background technology
Many times need to increase structural column in present aseismatic reinforcement engineering, it is universal in newly-increased structural column both at home and abroad at present
By the way of cast-in-situ reinforced concrete column, which and essentially identical, the steel planting work on the beam of original building of commonly constructing
To increase the steel bar stress of post, then formwork supporting plate casting concrete newly, newly-increased structural column construction is completed after conserving form removal.
The connection of steel core concrete column and structure is primarily referred to as its connection with beam.At present, steel core concrete column and beam
Mainly by setting ring beam to form linkage section in post upper end, the ring beam linkage section need to configure more reinforcing bar or be joined using reinforcing bar for connection
It is reinforced beam and steel core concrete column, makes structural union entirety stress.Newly-increased steel core concrete column is not retrieved at present
With the interconnection technique of existing structure, more without prefabricated interconnection technique.
1st, there is the shortcomings that following in the reinforcing mode for increasing structural column newly using cast-in-situ steel reinforced concrete：
(1) this method must carry out bar planting intensity detection, increase technique and duration, increase testing cost.It must detect and be implanted in
Whether the reinforcing bar on original building beam has enough adhesion strengths, if adhesion strength not enough cannot function as the principal rod of newly-increased post, not
Lower construction together can not be entered by detection.
(2) technique needs formwork supporting plate, wire-ties, and technique is cumbersome, and construction space is small, increases difficulty of construction, easily increases the duration.
With respect to Construction of Steel Pipe Concrete Column, cast-in-situ reinforced concrete column needs formwork supporting plate and ties up reinforcing bar, technique is more add it is artificial and
Time cost.Existing building reinforces project with respect to new building, and its construction space is small, is unfavorable for operation and adds difficulty of construction,
Easily influence the duration.
(3) technology is not implemented prefabricated, does not often reach the requirement of plan time, influences the lasting use of building function.
In single span teaching building more typically, plan time requires to complete within summer vacation 60 newly-increased structural column reinforcing engineering more, but due to mixed
Solidifying soil reaches design strength must be 28 days, and have the new maintenance for doing basis and detection, wire-tie, formwork form removal, the stream such as later stage finishing
Journey work occupies more time, reinforcement can not be completed in plan time, influences teaching building normal use.
(4) the technical quality effect is poor.Newly-increased cast-in-situ reinforced concrete column generally uses the capital template in this layer of post
Mouthful grouting, because floor limits construction space, makes pouring construction face to look up grouting, be unfavorable in artificial and mechanical top
Envelope grouting mouth, and easily running mould causes newly-increased reinforced column second-rate.
2nd, existing common steel core concrete column and reinforced beam interconnection technique：
(1) new building is applicable, if being used in existing structure, original structure beam must be removed, destroy original structure globality.
(2) technology it is actual for post through beam be interrupted, interruption beam is connected by ring beam, but ring beam position reinforcing bar compared with
More, reinforcing bar colligation is more complicated.
The content of the invention
The present invention in order to solve in existing building increase newly concrete column space it is small, constructional difficulties, low construction efficiency, construction
Technical problem long in time limit, there is provided it is a kind of can be prefabricated construction quality is high, newly-increased steel core concrete column that efficiency of construction is high with both
Structured prefabricated attachment structure and method.
In order to solve the above problems, what the present invention was achieved by following technical scheme：
The prefabricated attachment structure of newly-increased steel core concrete column and existing structure of the present invention, including two pieces be arranged in parallel
Put more energy into backing plate, the connecting plate of backing plate of putting more energy into described in connection, some connecting holes are provided with the backing plate of putting more energy into；In the connecting hole
Split bolt is provided with, the split bolt runs through all backing plates of putting more energy into be arrangeding in parallel, and the both ends of the split bolt pass through
Nut is connected with backing plate of putting more energy into；The both ends of the split bolt extend outward the backing plate of putting more energy into and form connection end；
Plug hole is additionally provided with the backing plate of putting more energy into.
Further, the upper surface for being arranged on the backing plate of putting more energy into of upper end is extended with vertical baffle plate, the vertical baffle plate and institute
State backing plate of putting more energy into be vertically arranged, the surrounding for backing plate of putting more energy into described in the vertical baffle plate edge is end to end to surround a square cavity.
Further, some first through hole are provided with the connecting plate.
Further, the connecting hole is mounting hole.
Further, the second through hole of corresponding floor with opening is provided with the backing plate of putting more energy into.
Further, the plug hole is arranged on two angle positions of backing plate of putting more energy into so that the backing plate of putting more energy into forms T
Shape structure.
Further, the attachment means can be completed or make according to on-site customization, whole prefabrications.
A kind of prefabricated connection method of newly-increased steel core concrete column and existing structure, comprises the following steps：
S1, it is in the intersecting position of Cantilever Beams and end carriage in the floor to need reinforcement backing plate of putting more energy into, the pad of putting more energy into is set
Plate is arranged on the upper and lower surface of floor, and is drilled in the end face of Cantilever Beams and connecting plate is put more energy into through floor connection two
Backing plate；Some connecting holes, plug hole are provided with the backing plate of putting more energy into；
S2, by connecting hole to existing building drill, by plug hole to existing building bore plug hole；
S3, by split bolt through putting more energy into backing plate, existing building, and be inserted in nut check at the both ends of split bolt；
S4, in the lower end of the backing plate of putting more energy into installed in soffit steel pipe column is set, the steel pipe column and is arranged on bottom
Backing plate of putting more energy into welding carried out by seam squeegeeed processing；
S5, the height by plug hole casting concrete to the backing plate of putting more energy into for being arranged on upper end, complete a newly-increased steel pipe and mix
The construction of solidifying earth pillar.
Further, before the S1, the physical dimension at Column border node is increased newly by in-site measurement, and according to design drawing
Paper and scene reality carry out node modeling, according to modeling and calculate the size for determining to increase steel core concrete column newly, and corresponding pre-
The size of attachment structure processed, and prefabricated backing plate of putting more energy into.
Further, in the S1, the upper surface for being arranged on the backing plate of putting more energy into of upper end is extended with vertical baffle plate, described vertical
Baffle plate is vertically arranged with the backing plate of putting more energy into, and the vertical baffle plate is put more energy into described in, and end to end to surround one square for the surrounding of backing plate
Cavity, the height of the concreting to the vertical plate washer.
Further, before the S1, in addition to the appurtenances of original building are purged, reserve corresponding working face
Afterwards, dabbing cleaning is carried out to newly-increased Column border node position.
Compared with prior art, the beneficial effects of the invention are as follows：
Steel pipe column and attachment structure in the present invention can be prefabricated in the factory, improve efficiency of construction, shorten construction
Duration.Template need not be assembled and disassembled, saves construction cost.Open bolt hole in advance on steel pipe column, be connected by screw bolts, reduce
Site Welding operation, convenient construction.In casting concrete, can increase vertical reinforcement in Ban Dongchu, can strengthen lower floor's post with
The connection of upper strata post；It ensure that the quality of construction.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is the structural representation of the prefabricated attachment structure of newly-increased steel core concrete column and existing structure of the present invention；
Fig. 2 is the front view of the prefabricated attachment structure of newly-increased steel core concrete column and existing structure of the present invention；
Fig. 3 is the top view of the prefabricated attachment structure of newly-increased steel core concrete column and existing structure of the present invention；
Fig. 4 is the construction schematic diagram of the prefabricated attachment structure of newly-increased steel core concrete column and existing structure of the present invention；
Fig. 5 is newly-increased steel core concrete column of the present invention and the prefabricated attachment structure of existing structure and the installation of steel pipe column
Schematic diagram.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in Fig. 1~Fig. 5, the prefabricated attachment structure of newly-increased steel core concrete column and existing structure of the present invention, bag
Two pieces of first put more energy into backing plate 1, second backing plate 2, connection described first backing plates 1 and second of putting more energy into of putting more energy into be arrangeding in parallel are included to put more energy into pad
The connecting plate 4 of plate 2, the described first backing plate 1 of putting more energy into are put more energy into put more energy into backing plate of the backing plate 2 for shape, as structure and size with second,
Some connecting holes 6 are provided with the backing plate of putting more energy into；In the present embodiment, the connecting hole 6 is mounting hole.
It is provided with split bolt 5 in the connecting hole 6, the split bolt 5, which runs through first to be arranged in parallel, puts more energy into backing plate 1
Put more energy into backing plate 2 with second, the both ends of the split bolt 5 are connected by nut 51 with backing plate of putting more energy into；The two of the split bolt 5
End extends outward the backing plate of putting more energy into and forms connection end, can be embedded in newly-increased steel core concrete column, increases the firm of connection
Property.The plug hole 7 of corresponding floor with opening is provided with the backing plate of putting more energy into.The plug hole 7 is arranged on two of backing plate of putting more energy into
Angle position so that the backing plate of putting more energy into forms T-shaped structure.
First upper surface for putting more energy into backing plate 1 is extended with vertical baffle plate 3, and the vertical baffle plate 3 is put more energy into described first
Backing plate 1 is vertically arranged, and the vertical baffle plate 3 end to end surrounds a square cavity along the described first surrounding for putting more energy into backing plate 1.
Some first through hole 41 are provided with the connecting plate 4.Described first backing plate 1 and second of putting more energy into is put more energy on backing plate 2
The second through hole 11 is provided with, mitigates the weight of put more energy into backing plate and connecting plate 4, saves material.
Described first puts more energy into backing plate 1 and vertical plate washer 3 less times greater than steel pipe column 8, steel pipe column 8 is directly inserted into vertical shelves
In the cavity that plate 3 surrounds, beneficial to the positioning of upper strata steel pipe column 8.The split bolt 5 is vertical strip, and end can be used curved
The mode of folding or end increase anchor slab crab-bolt increases the bonding of split bolt 5 and concrete, strengthens the vertical of steel core concrete column
Global configuration.First puts more energy into backing plate and the second connecting plate put more energy between backing plate can be replaced Wasted-energy steel plate, inferior in non-earthquake situations condition
Same general steel plate, the preferential energy-dissipating and shock-absorbing under geological process, makes eaerthquake damage occur mainly at newly-increased steel core concrete column,
Reduce the destruction to original structure.If newly-increased structural column in the inner side of structure, can save when can not install vertical connecting plate.
A kind of prefabricated connection method of newly-increased steel core concrete column and existing structure, comprises the following steps：
S1, increase the physical dimension at Column border node newly by in-site measurement, and actually saved according to design drawing and scene
Point modeling, the size of newly-increased steel core concrete column, and the size of corresponding prefabricated attachment structure are determined according to modeling and calculating, and
Prefabricated backing plate of putting more energy into.In the upper surface that first puts more energy into backing plate, vertical baffle plate 3 is set.
S2, the appurtenances to original building 92 are purged, and after reserving corresponding working face, newly-increased Column border node position is entered
Row dabbing is cleaned.
S3, it is in the intersecting position of Cantilever Beams 9 and end carriage 91 in the floor to need reinforcement backing plate of putting more energy into is set, described first
Backing plate 1 of putting more energy into is arranged on the upper surface of floor, and the described second backing plate 2 of putting more energy into is arranged on the lower surface of floor, and in Cantilever Beams 9
End face, which drills, causes connecting plate to be put more energy into backing plate 2 through the backing plate 1 and second of putting more energy into of floor connection first.
S4, by connecting hole 6 to existing building drill, by plug hole 7 to existing building bore plug hole.
S5, by split bolt through putting more energy into backing plate, existing building, and be inserted in nut check at the both ends of split bolt.
S6, steel pipe column 8, the steel pipe column 8 and second are being set installed in the second of the soffit lower end for putting more energy into backing plate 2
Backing plate 2 of putting more energy into carries out welding by seam and squeegeeed processing.
S7, the height by plug hole casting concrete to the vertical plate washer 3, complete a newly-increased steel core concrete column
Construction.
The present invention, can prefabricated attachment structure using cleverly structure so that and construction worker constructs according to construction procedure,
In the reinforcing for adapting to the small existing building in space, the flow of standardization, the guarantee of quality, efficiency of construction height, it is ensured that duration
It is timely completed.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, therefore
Every any modification that without departing from technical solution of the present invention content, the technical spirit according to the present invention is made to above example,
Equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (10)
- A kind of 1. prefabricated attachment structure of newly-increased steel core concrete column and existing structure, it is characterised in that：Parallel set including two pieces Put more energy into described in the backing plate of putting more energy into put, connection the connecting plate of backing plate, some connecting holes are provided with the backing plate of putting more energy into；The connection Split bolt is provided with hole, the split bolt runs through all backing plates of putting more energy into be arrangeding in parallel, the both ends of the split bolt It is connected by nut with backing plate of putting more energy into；The both ends of the split bolt extend outward the backing plate of putting more energy into and form connection end；Plug hole is additionally provided with the backing plate of putting more energy into.
- 2. increase the prefabricated attachment structure of steel core concrete column and existing structure newly according to claim 1, it is characterised in that：If To put and vertical baffle plate is extended with the upper surface of the backing plate of putting more energy into of upper end, the vertical baffle plate is vertically arranged with the backing plate of putting more energy into, Put more energy into described in the surrounding of backing plate of the vertical baffle plate end to end surrounds a square cavity.
- 3. increase the prefabricated attachment structure of steel core concrete column and existing structure newly according to claim 2, it is characterised in that：Institute State and some first through hole are provided with connecting plate.
- 4. according to the prefabricated attachment structure of any one of claims 1 to 3 newly-increased steel core concrete column and existing structure, it is special Sign is：The connecting hole is mounting hole.
- 5. increase the prefabricated attachment structure of steel core concrete column and existing structure newly according to claim 4, it is characterised in that：Institute State the second through hole that corresponding floor with opening is provided with backing plate of putting more energy into.
- 6. increase the prefabricated attachment structure of steel core concrete column and existing structure newly according to claim 4, it is characterised in that：Institute State two angle positions that plug hole is arranged on backing plate of putting more energy into so that the backing plate of putting more energy into forms T-shaped structure.
- A kind of 7. prefabricated connection method of newly-increased steel core concrete column and existing structure, it is characterised in that：Comprise the following steps：S1, it is in the intersecting position of Cantilever Beams and end carriage in the floor to need reinforcement backing plate of putting more energy into is set, the backing plate of putting more energy into is set Put the upper and lower surface in floor, and drill in the end face of Cantilever Beams and connecting plate is put more energy into pad through floor connection two Plate；Some connecting holes, plug hole are provided with the backing plate of putting more energy into；S2, by connecting hole to existing building drill, by plug hole to existing building bore plug hole；S3, by split bolt through putting more energy into backing plate, existing building, and be inserted in nut check at the both ends of split bolt；S4, steel pipe column is set in the lower end of the backing plate of putting more energy into installed in soffit, the steel pipe column is with being arranged on adding for bottom Strength backing plate carries out welding by seam and squeegeeed processing；S5, the height by plug hole casting concrete to the backing plate of putting more energy into for being arranged on upper end, complete a newly-increased concrete filled steel tube The construction of post.
- 8. increase the prefabricated connection method of steel core concrete column and existing structure newly according to claim 7, it is characterised in that： Before the S1, the physical dimension at Column border node is increased newly by in-site measurement, and actually saved according to design drawing and scene Point modeling, the size of newly-increased steel core concrete column, and the size of corresponding prefabricated attachment structure are determined according to modeling and calculating, and Prefabricated backing plate of putting more energy into.
- 9. increase the prefabricated connection method of steel core concrete column and existing structure newly according to claim 7, it is characterised in that：Institute State in S1, the upper surface for being arranged on the backing plate of putting more energy into of upper end is extended with vertical baffle plate, the vertical baffle plate and the backing plate of putting more energy into It is vertically arranged, the surrounding for backing plate of being put more energy into described in the vertical baffle plate edge is end to end to surround a square cavity, and the concrete pours Build to the height of the vertical plate washer.
- 10. increase the prefabricated connection method of steel core concrete column and existing structure newly according to claim 8, it is characterised in that： It is purged before the S1, in addition to the appurtenances of original building, after reserving corresponding working face, to increasing Column border node portion newly Position carries out dabbing cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780007.3A CN107355008B (en) | 2017-09-01 | 2017-09-01 | Prefabricated connection structure and method for newly added concrete filled steel tubular column and existing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780007.3A CN107355008B (en) | 2017-09-01 | 2017-09-01 | Prefabricated connection structure and method for newly added concrete filled steel tubular column and existing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355008A true CN107355008A (en) | 2017-11-17 |
| CN107355008B CN107355008B (en) | 2023-04-28 |
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| CN201710780007.3A Active CN107355008B (en) | 2017-09-01 | 2017-09-01 | Prefabricated connection structure and method for newly added concrete filled steel tubular column and existing structure |
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| CN109235640A (en) * | 2018-06-05 | 2019-01-18 | 北京交通大学 | A kind of skewer pin connection structure between modularization steel construction piece for building |
| CN110725562A (en) * | 2019-10-24 | 2020-01-24 | 杭州市建筑设计研究院有限公司 | Floor separation reinforcing method suitable for reinforcing large-load data room |
| CN110984475A (en) * | 2019-06-28 | 2020-04-10 | 王海崴 | Straight groove-shaped component connected by assembly type construction steel bars |
| CN111719888A (en) * | 2020-07-11 | 2020-09-29 | 江苏筑镹营造科技有限公司 | Method for additionally arranging ring beam and constructional column in existing masonry building body |
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| CN104947802A (en) * | 2015-06-15 | 2015-09-30 | 山东建筑大学 | Node for connecting concrete-filled steel tube column and external wrapping U-shaped steel concrete composite beam |
| CN207144180U (en) * | 2017-09-01 | 2018-03-27 | 广州市建筑科学研究院新技术开发中心有限公司 | A kind of prefabricated attachment structure of newly-increased steel core concrete column and existing structure |
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| JP2003013614A (en) * | 2001-04-26 | 2003-01-15 | Ohmoto Gumi Co Ltd | Seismic strengthening method for existing building, and brace mounting apparatus for use therein |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109235640A (en) * | 2018-06-05 | 2019-01-18 | 北京交通大学 | A kind of skewer pin connection structure between modularization steel construction piece for building |
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| CN110984475A (en) * | 2019-06-28 | 2020-04-10 | 王海崴 | Straight groove-shaped component connected by assembly type construction steel bars |
| CN110725562A (en) * | 2019-10-24 | 2020-01-24 | 杭州市建筑设计研究院有限公司 | Floor separation reinforcing method suitable for reinforcing large-load data room |
| CN111719888A (en) * | 2020-07-11 | 2020-09-29 | 江苏筑镹营造科技有限公司 | Method for additionally arranging ring beam and constructional column in existing masonry building body |
| CN111719888B (en) * | 2020-07-11 | 2021-10-22 | 江苏筑镹营造科技有限公司 | Method for additionally arranging ring beam and constructional column in existing masonry building body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107355008B (en) | 2023-04-28 |
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