CN106907017A - The ruggedized construction and method of the existing prefabricated ledger beam of multilayer Box linear programming - Google Patents
The ruggedized construction and method of the existing prefabricated ledger beam of multilayer Box linear programming Download PDFInfo
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- CN106907017A CN106907017A CN201710272691.4A CN201710272691A CN106907017A CN 106907017 A CN106907017 A CN 106907017A CN 201710272691 A CN201710272691 A CN 201710272691A CN 106907017 A CN106907017 A CN 106907017A
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- prefabricated
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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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Abstract
This application discloses a kind of ruggedized construction and method of the existing prefabricated ledger beam of multilayer Box linear programming, it includes：The vertical muscle arrangement space of back that prefabricated ledger beam top original structure whole casting layer is cut and formed；It is arranged in the vertical muscle arrangement space of back and some backs through frame column indulges muscle；It is opened in the U-shaped stirrup arrangement of grooves on prefabricated ledger beam base and left and right sides；It is arranged in stirrup arrangement of grooves and the stirrup of ear is chosen through beam；The vertical muscle arrangement space of back is poured and is filled up and the vertical muscle of back is poured into solid the first concrete backfill area in the inner；Stirrup arrangement of grooves is poured and is filled up and stirrup is poured into solid grouting material back filled region in the inner；It is arranged in the vertical muscle in some beam bottoms in the outside of prefabricated ledger beam bottom or so two；It is cast in prefabricated ledger beam bottom periphery and the vertical muscle in the beam bottom is poured into solid the second concrete backfill area in the inner.The application effectively increase prefabricated ledger beam by curved, shear resistance capacity.
Description
Technical field
The application is related to existing building structure strengthening reconstruction field, and in particular to a kind of existing multilayer Box linear programming is prefabricated
The ruggedized construction of ledger beam.
Background technology
At present using Enlargement of Section reinforced concrete beam specification and related atlas mainly for square-section form, increase
The connecting structure of the newly-increased stirrup of cross-sectional configurations is as shown in figure 1, main reinforcing joint processing mode includes：
1) increase steel bar stress newly to be connected using short muscle with former steel bar stress, as shown in Figure 1；
2) u tie muscle is set, and u tie muscle is welded on original stirrup, as shown in Figure 2；
3) reinforced using coagulation fortifield village set, ring-shaped stirrup is set or adds anchor formula stirrup, as shown in Figure 3 and Figure 4；
4) when the embedded u tie of use bar planting mode is limited by structural environment, as shown in Figure 5.
For the existing prefabricated ledger beam of multilayer Box linear programming, section form is different from existing concrete structures after strengthening
And respective type specified in atlas, while armored concrete pregroove plate is shelved with ledger beam, from the prefabricated gaily decorated basket of raising
Beam by curved and shear resistance capacity, reduce the vertical muscle in newly-increased beam bottom to the Durchgangshohle punching destruction of original frame column, avoid reinforcing when pair
The destruction of trough plate, reduce difficulty of construction angle and purpose is set out, the reinforcing joint way application that current specification and atlas specify
It has been short of in the reinforcing on the existing prefabricated gaily decorated basket of multilayer Box linear programming.
The application comes therefrom.
Application content
The purpose of the application is：In view of the shortcomings of the prior art, a kind of existing prefabricated gaily decorated basket of multilayer Box linear programming is proposed
Beam ruggedized construction and method, with improve prefabricated ledger beam by curved, shear resistance capacity.
The technical scheme of the application is：A kind of ruggedized construction of the existing prefabricated ledger beam of multilayer Box linear programming, including hang down
The direct-connected prefabricated ledger beam and frame column for connecing, the prefabricated ledger beam is chosen ear, is also included including beam：
The vertical muscle arrangement space of back that the prefabricated ledger beam top original structure whole casting layer is cut and formed；
It is arranged in the vertical muscle arrangement space of the back and some backs through the frame column indulges muscle；
It is opened in the U-shaped stirrup arrangement of grooves in the prefabricated ledger beam base and left and right sides；
It is arranged in the stirrup arrangement of grooves and the stirrup of ear is chosen through the beam；
The vertical muscle arrangement space of the back is poured and is filled up and the vertical muscle of the back is poured into solid first mixing in the inner
Solidifying earthen backfill area；
The stirrup arrangement of grooves is poured and is filled up and the stirrup is poured into solid grouting material back filled region in the inner；
It is arranged in the vertical muscle in some beam bottoms in the outside of described prefabricated ledger beam bottom or so two；And
It is cast in prefabricated ledger beam bottom periphery and the vertical muscle in the beam bottom is poured into solid the second concrete backfill in the inner
Area.
This ruggedized construction of the application on the basis of above-mentioned technical proposal, also including following preferred scheme：
Also include the second stirrup that the vertical muscle in some beam bottoms links together, the second concrete backfill area will
Second stirrup is poured admittedly in the inner.
The vertical muscle in the beam bottom is located at the outside of left and right two of the frame column.
A kind of reinforcement means of the existing prefabricated ledger beam of multilayer Box linear programming, including：
Cut prefabricated ledger beam top original structure whole casting layer relevant range and form the vertical muscle arrangement space of back, described
The vertical muscle arrangement space of back is newly-increased to set the vertical muscle of back, and the vertical muscle of the back is run through frame column；
U-shaped stirrup arrangement of grooves is opened up on the base of the prefabricated ledger beam and left and right sides, in the stirrup cloth
Put and arrange in groove stirrup, and beam by the stirrup on the prefabricated ledger beam chooses ear；
The vertical muscle in beam bottom is respectively provided with the outside of described prefabricated ledger beam bottom or so two, and the second stirrup is set by these beam bottoms
Vertical muscle is coupled together；
The vertical muscle arrangement space of the back is poured using concrete is filled up, so as to formed pour the vertical muscle of the back
Gu the first concrete backfill area in the inner；The stirrup arrangement of grooves is filled up using grouting material, so that formed will be described
Stirrup pours solid grouting material back filled region in the inner；Using concreting in prefabricated ledger beam bottom periphery, so as to be formed institute
State the vertical muscle in beam bottom and pour solid the second concrete backfill area in the inner.
This reinforcement means of the application on the basis of above-mentioned technical proposal, also including following preferred scheme：
The vertical muscle in the beam bottom is located at the outside of left and right two of the frame column.
When original structure whole casting layer relevant range at the top of prefabricated ledger beam is cut, it is ensured that the steel not destroyed in whole casting layer
Muscle structure, again pour smashing after should being restored to the original state if any destruction.
The advantage of the application is：
1) using this reinforcing way, can improve prefabricated ledger beam by curved, shear resistance capacity.
2) the vertical muscle in newly-increased beam bottom is avoided through frame column, the destruction to original frame column.
3) destruction of traditional increasing section method for strengthening to trough plate is avoided.
4) difficulty of construction and reinforcement cost are largely reduced.
Brief description of the drawings
The application is described further with specific embodiment below in conjunction with the accompanying drawings：
The ruggedized construction schematic diagram that Fig. 1 is connected with former steel bar stress for newly-increased steel bar stress in conventional art using short muscle；
Fig. 2 is setting u tie muscle in conventional art, and u tie muscle is welded in the ruggedized construction schematic diagram on original stirrup；
Fig. 3 is reinforced to be covered using coagulation fortifield village in conventional art, sets the ruggedized construction schematic diagram of ring-shaped stirrup；
Fig. 4 is reinforced to be covered using coagulation fortifield village in conventional art, sets the ruggedized construction schematic diagram of anchor formula stirrup；
Fig. 5 is when limit ruggedized construction schematic diagram that u tie is buried using bar planting mode by structural environment in conventional art；
Fig. 6 is the existing prefabricated ledger beam ruggedized construction schematic diagram of multilayer Box linear programming in the embodiment of the present application；
Wherein：1- raw steel muscle, 2- connects short muscle, and 3- links reinforcing bar, and 4- increases reinforcing bar newly, and 5- newly adds U-shaped stirrup with former stirrup
Weld, 6- newly adds U-shaped stirrup, and 7- is used to anchor the structure glue for planting stirrup, and 8- newly adds stirrup, 9- bolts, 10- steel plates, 11-
Plus anchor formula stirrup, 12- increases steel bar stress newly, and 13- fills in the structure glue in hole, 14- glue anchor formula stirrups；
The prefabricated ledger beams of 15-, 15a- beams choose ear, 16- frame columns, and 17- backs indulge muscle, and muscle is indulged at 18- stirrups, 19- beams bottom,
The first concrete backfills of 20- area, 21- grouting materials back filled region, the second concrete backfills of 22- area, the stirrups of 23- second, 24- is former vertical
Muscle, 25- original stirrups, 26- original structure whole casting layers.
Specific embodiment
A kind of structure shape of the typical existing prefabricated ledger beam of multilayer Box linear programming is shown shown in reference picture 6, in figure
Formula, it includes prefabricated ledger beam 15 connected vertically and frame column 16, wherein prefabricated ledger beam 15 chooses ear 15a including beam.
And the present embodiment is based on said structure, this existing prefabricated ledger beam of multilayer Box linear programming to be added
Gu treatment, the reinforcing and processing method is mainly included the following steps that (shown in reference picture 6)：
1) the top original structure whole casting layer relevant range of prefabricated ledger beam 15 is cut, and forms the vertical muscle arrangement space of back,
In the newly-increased vertical muscle 17 of many backs of setting of the vertical muscle arrangement space of the back, and the vertical muscle 17 of these backs is set to run through frame column 16.
It should be noted that when 15 top original structure whole casting layer relevant range of prefabricated ledger beam is cut, it is ensured that no
Bar construction in destruction whole casting layer, again pour smashing after should being restored to the original state if any destruction.
2) U-shaped stirrup arrangement of grooves is opened up on the base of prefabricated ledger beam 15 and left and right sides, in stirrup arrangement of grooves
Middle arrangement stirrup 18, and the beam that the stirrup 18 runs through on prefabricated ledger beam 15 is chosen into ear 15a.
3) the vertical muscle 19 in many beam bottoms is respectively provided with the outside of bottom of prefabricated ledger beam 15 or so two, and the second stirrup 23 is set
(being different in nature stirrup) couples together the vertical muscle 19 in these beam bottoms.
4) the vertical muscle arrangement space of the back is poured using concrete and is filled up, so as to formed for the back to indulge muscle
17 pour solid the first concrete backfill area 20 in the inner.
The stirrup arrangement of grooves is filled up using grouting material, so as to formed for the stirrup 18 to pour solid filling in the inner
Slurry back filled region 21.
Using concreting in the bottom periphery of prefabricated ledger beam 15, consolidate in the inner so as to be formed and pour the vertical muscle 19 in beam bottom
Second concrete backfill area 22.So that the bottom width of prefabricated ledger beam 15 is increased.And the beam bottom being arranged such
Vertical muscle 19 need not run through the outside of left and right two that the vertical muscle 19 in frame column 16, i.e. beam bottom is located at frame column 16 at bean column node position,
Improve the structural intergrity of frame column 16.
Above-mentioned second stirrup 23 can increase the globality of bottom reinforcement bars.
It can be seen that, the reinforcing knot by after above-mentioned consolidation process, just foring the existing prefabricated ledger beam of multilayer Box linear programming
Structure, the structure includes：
The vertical muscle arrangement space of back that the top original structure whole casting layer of prefabricated ledger beam 15 is cut and formed；
It is arranged in the vertical muscle arrangement space of the back and many backs through frame column 16 indulges muscle 17；
It is opened in the U-shaped stirrup arrangement of grooves on the base of prefabricated ledger beam 15 and left and right sides；
It is arranged in stirrup arrangement of grooves and the stirrup 18 of ear 15a is chosen through beam；
The vertical muscle arrangement space of back is poured to fill up and the vertical muscle 17 of back is poured into solid the first concrete in the inner and is returned
Fill out area 20；
Stirrup arrangement of grooves is poured and is filled up and stirrup 18 is poured into solid grouting material back filled region 21 in the inner；
It is arranged in the vertical muscle 19 in many beam bottoms in the outside of bottom of prefabricated ledger beam 15 or so two；
The second stirrup 23 that the vertical muscle 19 in each beam bottom is linked together；And
Be cast in the bottom periphery of prefabricated ledger beam 15 and by the vertical stirrup 23 of muscle 19 and second in beam bottom pour it is solid in the inner second
Concrete backfill area 22.
Certainly, above-described embodiment is only the technology design and feature for illustrating the application, its object is to make people much of that
Solution present context is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application major technique
Equivalent transformation or modification that the Spirit Essence of scheme is done, should all cover within the protection domain of the application.
Claims (5)
1. a kind of ruggedized construction of the existing prefabricated ledger beam of multilayer Box linear programming, including prefabricated ledger beam connected vertically (15)
With frame column (16), the prefabricated ledger beam (15) chooses ear (15a) including beam, it is characterised in that also include：
The vertical muscle arrangement space of back that prefabricated ledger beam (15) the top original structure whole casting layer is cut and formed；
It is arranged in the vertical muscle arrangement space of the back and some backs through the frame column (16) indulges muscle (17)；
It is opened in the U-shaped stirrup arrangement of grooves on prefabricated ledger beam (15) base and left and right sides；
It is arranged in the stirrup arrangement of grooves and the stirrup (18) of ear (15a) is chosen through the beam；
The vertical muscle arrangement space of the back is poured and is filled up and the vertical muscle (17) of the back is poured into solid first mixing in the inner
Solidifying earthen backfill area (20)；
The stirrup arrangement of grooves is poured and is filled up and the stirrup (18) is poured into solid grouting material back filled region in the inner
(21)；
It is arranged in the vertical muscle (19) in some beam bottoms in the outside of described prefabricated ledger beam (15) bottom or so two；And
It is cast in prefabricated ledger beam (15) bottom periphery and the vertical muscle (19) in the beam bottom is poured into solid the second concrete in the inner and returns
Fill out area (22).
2. the ruggedized construction of the existing prefabricated ledger beam of multilayer Box linear programming according to claim 1, it is characterised in that also
Including the second stirrup (23) that the vertical muscle (19) in some beam bottoms links together, the second concrete backfill area (22)
Second stirrup (23) is poured admittedly in the inner.
3. the ruggedized construction of the existing prefabricated ledger beam of multilayer Box linear programming according to claim 2, it is characterised in that institute
The vertical muscle (19) in beam bottom is stated positioned at the outside of left and right two of the frame column (16).
4. a kind of reinforcement means of the existing prefabricated ledger beam of multilayer Box linear programming, it is characterised in that including：
Cut prefabricated ledger beam (15) top original structure whole casting layer relevant range and form the vertical muscle arrangement space of back, described
The vertical muscle arrangement space of back is newly-increased to set the vertical muscle (17) of back, and the back is indulged muscle (17) through frame column (16)；
U-shaped stirrup arrangement of grooves is opened up on the base of the prefabricated ledger beam (15) and left and right sides, in the stirrup cloth
Put and stirrup (18) is arranged in groove, and beam by the stirrup (18) on the prefabricated ledger beam (15) chooses ear (15a)；
The vertical muscle (19) in beam bottom is respectively provided with the outside of described prefabricated ledger beam (15) bottom or so two, and the second stirrup of setting (23) will
The vertical muscle (19) in these beam bottoms is coupled together；
The vertical muscle arrangement space of the back is poured using concrete is filled up, so as to formed pour the vertical muscle (17) of the back
Gu the first concrete backfill area (20) in the inner；The stirrup arrangement of grooves is filled up using grouting material, thus formed by
The stirrup (18) pours solid grouting material back filled region (21) in the inner；Using concreting outside prefabricated ledger beam (15) bottom
Enclose, so as to formed for the vertical muscle (19) in the beam bottom to pour solid the second concrete backfill area (22) in the inner.
5. the reinforcement means of the existing prefabricated ledger beam of multilayer Box linear programming according to claim 4, it is characterised in that institute
The vertical muscle (19) in beam bottom is stated positioned at the outside of left and right two of the frame column (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710272691.4A CN106907017A (en) | 2017-04-24 | 2017-04-24 | The ruggedized construction and method of the existing prefabricated ledger beam of multilayer Box linear programming |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710272691.4A CN106907017A (en) | 2017-04-24 | 2017-04-24 | The ruggedized construction and method of the existing prefabricated ledger beam of multilayer Box linear programming |
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| CN106907017A true CN106907017A (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710272691.4A Pending CN106907017A (en) | 2017-04-24 | 2017-04-24 | The ruggedized construction and method of the existing prefabricated ledger beam of multilayer Box linear programming |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434539A (en) * | 2022-11-10 | 2022-12-06 | 中国建筑设计研究院有限公司 | Newly-increased bare concrete cantilever structure of existing building and connection method |
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| JPH11270146A (en) * | 1998-03-20 | 1999-10-05 | Yahagi Construction Co Ltd | Reinforcement engineering method of existing beam body |
| CN101649678A (en) * | 2009-07-24 | 2010-02-17 | 天地金草田（北京）科技有限公司 | Structure for strengthening node of beam column by section increase method and construction method thereof |
| CN204126295U (en) * | 2014-10-22 | 2015-01-28 | 天颂建设集团有限公司 | Outsourcing reinforcing bar ruggedized construction at the bottom of a kind of beam |
| CN206769438U (en) * | 2017-04-24 | 2017-12-19 | 华东建筑设计研究院有限公司 | The ruggedized construction of the existing prefabricated ledger beam of multilayer Box linear programming |
-
2017
- 2017-04-24 CN CN201710272691.4A patent/CN106907017A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270146A (en) * | 1998-03-20 | 1999-10-05 | Yahagi Construction Co Ltd | Reinforcement engineering method of existing beam body |
| CN101649678A (en) * | 2009-07-24 | 2010-02-17 | 天地金草田（北京）科技有限公司 | Structure for strengthening node of beam column by section increase method and construction method thereof |
| CN204126295U (en) * | 2014-10-22 | 2015-01-28 | 天颂建设集团有限公司 | Outsourcing reinforcing bar ruggedized construction at the bottom of a kind of beam |
| CN206769438U (en) * | 2017-04-24 | 2017-12-19 | 华东建筑设计研究院有限公司 | The ruggedized construction of the existing prefabricated ledger beam of multilayer Box linear programming |
Non-Patent Citations (2)
| Title |
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| 徐怀钊等: "混凝土结构加固基本方法及选择要点", 《建筑结构》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434539A (en) * | 2022-11-10 | 2022-12-06 | 中国建筑设计研究院有限公司 | Newly-increased bare concrete cantilever structure of existing building and connection method |
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Application publication date: 20170630 |
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