CN107217865B - A kind of increasing reinforced construction method of the flat beam section of main body frame - Google Patents
A kind of increasing reinforced construction method of the flat beam section of main body frame Download PDFInfo
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- CN107217865B CN107217865B CN201710469339.XA CN201710469339A CN107217865B CN 107217865 B CN107217865 B CN 107217865B CN 201710469339 A CN201710469339 A CN 201710469339A CN 107217865 B CN107217865 B CN 107217865B
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- concrete
- flat beam
- template
- body frame
- main body
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Classifications
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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
-
- 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
- E04C3/22—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 built-up by elements jointed in line
Abstract
The invention discloses a kind of increasing reinforced construction methods of the flat beam section of main body frame, include the steps that first treating and reinforces flat beam progress base treatment, unwrapping wire and bar planting, it is characterized in that, after bar planting, further include following steps: multiple translots being placed equidistant with along its length and penetrate through in the width direction are picked out in the bottom wait reinforce flat beam according to unwrapping wire position, the depth of translot is until picking out beam main tendon, according to the beam main tendon position picked out, the position that main reinforcement is avoided in selection drills through vertically communicated pouring hole；Then the reinforcing installation of template is carried out；From pouring hole into template casting concrete, in casting process, vibrating spear is inserted into template and is vibrated to concrete, cement slurry of emerging above concreting to the template wait reinforce flat beam two sides, and when concrete no longer sinks at pouring hole, pouring for concrete is completed.The present invention has operation more convenient, advantageously reduces the difficulty of construction of concreting；Reduce the waste of concrete, saves construction cost；Be conducive to the advantages that improving the intensity that crossbeam is reinforced.
Description
Technical field
The present invention relates to technical field of building construction, the increasing reinforcing in particular to a kind of flat beam section of main body frame is applied
Work method.
Background technique
Concrete structure old building it is engineered in and New Buildings major project construction in, occasionally there are portions
Divide the phenomenon of concrete members intensity deficiency, so that component is caused to generate a large amount of structural cracks because bearing capacity reduces, influences
To the normal use and durability of building；When the concrete strength wretched insufficiency of a large amount of components, it will cause building structure because
It loses bearing capacity and collapses.To make each concrete component in building structure be able to satisfy bearing capacity and serviceability limit state
Design requirement and whole Seismic Design Requirements, need to carry out reinforcement and strengthening to these components.
Currently, the reinforcement and strengthening method for concrete structure member has section-increased method, Covered with Angles method, sticking carbon fiber
Method, external prestressing method, suspension method and increase supporting methods etc.；Wherein, it when being reinforced using section-increased method to crossbeam, passes
The construction method of system are as follows: first after the bottom bar planting of crossbeam, installation template, and the template of beam width direction side is leaned outward
It is oblique at horn mouth (as shown in Figure 1),, will prominent crossbeam side after concrete initial set then from casting concrete from the horn mouth
It rejects at the cast gate position of wall.But when the crossbeam to need reinforcement is flat beam, due to original flat beam bottom portion and upper floor board bottom
The distance between portion is smaller (as shown in Figure 2), and after template installation, tubaeform pours the distance between mouth and upper layer floor slab bottoms
Also smaller, concreting work can not be carried out, brings great difficulty to construction.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are: how to provide a kind of use with
Flat Liang Jiagu, it is easy to operate, difficulty of construction is advantageously reduced, the increasing for improving the flat beam section of main body frame of construction quality is reinforced
Construction method.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
A kind of increasing reinforced construction method of the flat beam section of main body frame, including first treat and reinforce at flat beam progress base
The step of reason, unwrapping wire and bar planting, which is characterized in that further include following steps after bar planting:
Multiple be placed equidistant with along its length and in the width direction is picked out in the bottom wait reinforce flat beam according to unwrapping wire position
The translot of perforation, the depth of translot, according to the beam main tendon position picked out, choose the position for avoiding main reinforcement until picking out beam main tendon
Drill through vertically communicated pouring hole；Then the reinforcing installation of template is carried out；
From pouring hole into template casting concrete, in casting process, vibrating spear is inserted into template, concrete is carried out
It vibrates, cement slurry of emerging above concreting to the template wait reinforce flat beam two sides, and concrete no longer sinks at pouring hole
When, complete pouring for concrete.
Using above-mentioned construction method, multiple vertically communicated pouring holes are being drilled through wait reinforce on flat beam, since pouring hole passes through
Through upper layer floor, so that entire upper layer floor becomes the work surface of concreting, operation is more convenient, reduces coagulation
The difficulty of construction that soil pours.In addition, concreting is carried out using this method, it is not necessary that the two sides of template are arranged to horn mouth,
Reduce the subsequent work for rejecting protruding parts concrete, decrease the waste of concrete, is conducive to save construction cost.By
Run through in pouring hole wait reinforce flat beam, after the concrete setting in pouring hole, the combination between former flat beam is even closer, favorably
In further increasing the beam strength after pouring.Due to being provided with pouring hole, facilitate in vibrating spear insertion template to concrete into
Row vibrates, and is conducive to the compactness for increasing concrete, eliminates concrete since depression cracks and fine crack in new and old joint part,
Be conducive to improve the intensity that crossbeam is reinforced.
Further, when being vibrated using vibrating spear to concrete, treat reinforce the templates of the two sides of flat beam use it is flat
Slab vibrator and the mode manually hammered are vibrated.
In this way, can vibrate to the maximum extent to concrete, guarantee the compactness of coagulation body, improves what crossbeam was reinforced
Intensity.
Further, further include the steps that obtaining chute funnel-shaped before concreting, it, will when concreting
In the chute insertion pouring hole.
In this way, using funnelform chute, can pouring down or forth to avoid concrete, facilitate concreting, improve and pour
Efficiency.
Further, before concreting, the slump of concrete is detected, it is ensured that the slump of concrete is
180±20mm。
In this way, being conducive to improve the mobility of concrete, can be quickly filled in template convenient for concrete, convenient for applying
Work.
Further, after the completion of concreting, in initial set previous hour, secondary vibration is carried out to concrete.
In this way, be conducive to further increase the compactness of concrete, concrete is eliminated since depression is produced in new and old joint part
Raw crackle and fine crack.
Further, the width of the translot is 50~150mm；The central moment of the two neighboring translot be 1000~
1500mm, and the distance by the translot of close end apart from end is greater than 500mm.
Further, the pouring hole is up-small and down-big horn-like, and the aperture of upper end is 100mm, the aperture of lower end
For 300mm.
In this way, the effective area of vibrating spear vibrated concrete can be increased.
Further, the step of base treatment are as follows: before construction, by the aging of the substrate surface wait reinforce flat beam, open
It splits, loose and seriously polluted surface and oil contaminant structure thoroughly cut to firm base is cleaned, to ensure body structure surface heavily fortified point
Gu intact.
Further, before bar planting, further include the steps that treating and reinforce flat beam progress dabbing: according to unwrapping wire position wait reinforce
The bottom of flat beam carries out artificial chiseling processing, picks laitance and exposes stone, forms concave-convex pitted skin.
In this way, being conducive to the beam concrete that the later period pours organically is combined into an entirety with existing concrete, improve
Concrete construction Forming Quality.
Further, the step of bar planting are as follows: it is drilled according to unwrapping wire position in the bottom wait reinforce flat beam, aperture
Diameter than being implanted into reinforcing bar is 4mm big, is then blown off surface dust until hole inner wall is water stain without floating dust with inflator；With professional injecting glue
Syringe is slowly transferred on rifle injecting glue since bottom hole is goed deep into the other side, marginal not side, until filling the 2/3 of pore volume；By steel
Muscle, which slowly rotates, to be injected in hole for injecting glue, so as to bubble discharge, it is ensured that reinforcing bar is in hole center；To the end of anchoring adhesive curing period
The welding such as laggard cross girders main reinforcement and stirrup, binding work.
In conclusion the present invention has operation more convenient, the difficulty of construction of concreting is advantageously reduced；Reduce
Construction cost is saved in the waste of concrete；Be conducive to the advantages that improving the intensity that crossbeam is reinforced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that traditional beam section is reinforced.
Fig. 2 is structural schematic diagram of the flat beam when conventional cross-section is reinforced.
Fig. 3 is that the flat beam section in the method for the present invention reinforces schematic diagram.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
When specific implementation: flat beam section reinforced construction method is as follows: a base treatment: before construction, by substrate surface Ying Jian
In fact, it cleans, without greasy dirt and other pollutants, aging, cracking, loose and seriously polluted surface and oil contaminant structure will thoroughly be dug
Except to firm base is cleaned, to ensure that body structure surface is firm intact.
B unwrapping wire: the size indicated according to drawing is released on frame column and is needed reinforcement on the beam section size position line and beam
The line of rabbet joint for needing to pick out.
C dabbing: according to the beam section position line of releasing and former beam bottom, artificial chiseling processing is carried out, laitance is picked and exposes stone
Son forms concave-convex pitted skin, is conducive to the beam concrete that the later period pours in this way and is organically combined into one with existing concrete
It is whole, improve concrete construction Forming Quality.
D drilling, borehole cleaning, injecting glue, bar planting: drilling, and aperture should be greater than implantation bar diameter 4mm, then will with inflator
Surface dust is blown off until hole inner wall is water stain without floating dust.With professional colloid-injecting gun since bottom hole is goed deep into the other side injecting glue, marginal not side
Syringe is slowly transferred to, until filling the 2/3 of pore volume.Reinforcing bar is slowly rotated and is injected in hole for injecting glue, so as to bubble row
Out, it is ensured that reinforcing bar is in hole center.
The binding of e reinforcing bar: bar planting is completed to carry out the welding such as beam main tendon and stirrup, binding work after to anchoring adhesive curing period
Make.
F tick slot: the elongated slot of 100mm wide is picked out along reinforcing beam section (back portion) according to unwrapping wire position, until picking out
Until beam main tendon, for groove center away from for 1000mm, slot pitch beam-ends distance is 500mm.It is effectively prevented in this way in subsequent drilling,
Hurt beam main tendon.The case where according to beam main tendon is picked out, selects suitable position to carry out brill circular hole.Boring aperture is that top is
100mm, lower part 300mm can increase the effective area of vibrating spear vibrated concrete in this way.
G installation template: after the completion of drilling, formwork reinforcement installation is carried out.
H casting concrete: as shown in figure 3, being inserted in the hole using funneling chute is made by oneself, surrounding is fixed using frame body,
The slump of casting concrete generally requires as 180 ± 20mm, mobility when being conducive to pour in this way, the side of bringing when to construction
Just.During casting concrete, top is vibrated using vibrating spear, and beam sides is manually hammered using vibration board
Beam side cooperation is vibrated, and is vibrated to greatest extent to concrete in this way, is guaranteed its compactness.Casting concrete is until reinforcing
It emerges above side template cement slurry, concrete no longer sinks at hole on beam, stops pouring.
After the completion of concreting, or so initial set previous hour, secondary vibration is carried out to it, is conducive to increase so mixed
The compactness of soil is coagulated, eliminates concrete since depression cracks and fine crack in new and old joint part.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limitation with the present invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of increasing reinforced construction method of the flat beam section of main body frame, including first treat reinforce flat beam carry out base treatment,
The step of unwrapping wire and bar planting, which is characterized in that further include following steps after bar planting:
It is picked out according to unwrapping wire position in the bottom wait reinforce flat beam and multiple are placed equidistant with and penetrate through in the width direction along its length
Translot, the depth of translot is until picking out beam main tendon, according to the beam main tendon position picked out, chooses and avoids the position of main reinforcement and drill through
Vertically communicated pouring hole；Then carry out template reinforcing installation, including be close to wait reinforce flat beam two sides setting side form and
It is connected to the bed die of two side form bottoms；
From pouring hole into template casting concrete, in casting process, vibrating spear is inserted into template and is vibrated to concrete,
It emerges above concreting to template wait reinforce flat beam two sides cement slurry, and when concrete no longer sinks at pouring hole, it is complete
At pouring for concrete；
The width of the translot is 50~150mm；The central moment of the two neighboring translot is 1000~1500mm, and leans on proximal end
Distance of the translot in portion apart from end is greater than 500mm；The pouring hole is up-small and down-big horn-like, and the aperture of upper end is
100mm, the aperture of lower end are 300mm；The step of base treatment are as follows: before construction, by the substrate surface wait reinforce flat beam
Aging, cracking, loose and seriously polluted surface and oil contaminant structure thoroughly cut to firm base is cleaned, to ensure structure
Surface is firm intact.
2. the increasing reinforced construction method of the flat beam section of main body frame as described in claim 1, which is characterized in that use and vibrate
When stick vibrates to concrete, the mode that the template of the two sides of flat beam is hammered using vibration board and manually of reinforcing is treated
It vibrates.
3. the increasing reinforced construction method of the flat beam section of main body frame as described in claim 1, which is characterized in that further include
When concreting, the chute is inserted into pouring hole for the step of chute funnel-shaped is obtained before concreting.
4. the increasing reinforced construction method of the flat beam section of main body frame as described in claim 1, which is characterized in that concrete pours
Before building, the slump of concrete is detected, it is ensured that the slump of concrete is 180 ± 20mm.
5. the increasing reinforced construction method of the flat beam section of main body frame as described in claim 1, which is characterized in that concrete pours
After the completion of building, in initial set previous hour, secondary vibration is carried out to concrete.
6. the increasing reinforced construction method of the flat beam section of main body frame as described in claim 1, which is characterized in that before bar planting,
Further include the steps that treating and reinforce flat beam progress dabbing: being carried out at artificial chiseling according to unwrapping wire position in the bottom wait reinforce flat beam
Reason picks laitance and exposes stone, forms concave-convex pitted skin.
7. the increasing reinforced construction method of the flat beam section of main body frame as described in claim 1, which is characterized in that the bar planting
The step of are as follows: it is drilled according to unwrapping wire position in the bottom wait reinforce flat beam, aperture ratio is implanted into the big 4mm of diameter of reinforcing bar, so
Surface dust is blown off until hole inner wall is water stain without floating dust with inflator afterwards；It is infused since bottom hole is goed deep into the other side with professional colloid-injecting gun
Syringe is slowly transferred on glue, marginal not side, until filling the 2/3 of pore volume；Reinforcing bar is slowly rotated and is injected in hole for injecting glue, with
Just bubble is discharged, it is ensured that reinforcing bar is in hole center；Carried out after to anchoring adhesive curing period beam main tendon and stirrup welding,
Bind work.
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| CN201710469339.XA CN107217865B (en) | 2017-06-20 | 2017-06-20 | A kind of increasing reinforced construction method of the flat beam section of main body frame |
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| CN201710469339.XA CN107217865B (en) | 2017-06-20 | 2017-06-20 | A kind of increasing reinforced construction method of the flat beam section of main body frame |
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| CN107217865B true CN107217865B (en) | 2019-08-30 |
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| CN109812045A (en) * | 2019-03-19 | 2019-05-28 | 中建四局第一建筑工程有限公司 | After a kind of tool-type plus structural slab fast joint structure and method |
| CN115234025A (en) * | 2022-07-20 | 2022-10-25 | 中建八局西南建设工程有限公司 | Concrete floor thickening construction method |
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| CN103556820A (en) * | 2013-10-25 | 2014-02-05 | 杭州固力建筑工程有限公司 | Suspension mold for enlarging and reinforcing concrete beam and construction method of suspension mold |
| CN104746892A (en) * | 2015-03-30 | 2015-07-01 | 山东双得利建设科技有限公司 | Supporting beam wall demolition device and supporting beam wall demolition construction method |
| CN104847130A (en) * | 2015-05-19 | 2015-08-19 | 江苏南通三建集团有限公司 | Reinforcing structure of existing structural beam and construction method thereof |
| CN205314604U (en) * | 2016-01-15 | 2016-06-15 | 镇江中谊抗震科技股份有限公司 | A template for reinforced concrete roof beam increase cross -section |
| CN205637578U (en) * | 2016-04-26 | 2016-10-12 | 湖北建科结构加固有限责任公司 | Roof beam increase cross -section combination steel form |
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2017
- 2017-06-20 CN CN201710469339.XA patent/CN107217865B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556820A (en) * | 2013-10-25 | 2014-02-05 | 杭州固力建筑工程有限公司 | Suspension mold for enlarging and reinforcing concrete beam and construction method of suspension mold |
| CN104746892A (en) * | 2015-03-30 | 2015-07-01 | 山东双得利建设科技有限公司 | Supporting beam wall demolition device and supporting beam wall demolition construction method |
| CN104847130A (en) * | 2015-05-19 | 2015-08-19 | 江苏南通三建集团有限公司 | Reinforcing structure of existing structural beam and construction method thereof |
| CN205314604U (en) * | 2016-01-15 | 2016-06-15 | 镇江中谊抗震科技股份有限公司 | A template for reinforced concrete roof beam increase cross -section |
| CN205637578U (en) * | 2016-04-26 | 2016-10-12 | 湖北建科结构加固有限责任公司 | Roof beam increase cross -section combination steel form |
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Effective date of registration: 20200628 Address after: No.1 Tengfei Road, Junliang City, Dongli District, Tianjin Patentee after: MCC Construction Engineering Group (Tianjin) Construction Engineering Co., Ltd Address before: No. 1 West Road 400084 Dadukou District of Chongqing Patentee before: CHINA METALLURGICAL CONSTRUCTION ENGINEERING GROUP Co.,Ltd. |