CN107217865A - 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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- CN107217865A CN107217865A CN201710469339.XA CN201710469339A CN107217865A CN 107217865 A CN107217865 A CN 107217865A CN 201710469339 A CN201710469339 A CN 201710469339A CN 107217865 A CN107217865 A CN 107217865A
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- flat beam
- concrete
- body frame
- main body
- construction method
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of increasing reinforced construction method of the flat beam section of main body frame, including first treat the step of flat beam progress base treatment of reinforcing, unwrapping wire and bar planting, it is characterised in that after bar planting, also comprise the following steps：Waiting that the bottom for reinforcing flat beam picks out multiple be placed equidistant along its length and the translot of insertion in the width direction according to unwrapping wire position, the depth of translot is untill picking out beam main tendon, according to the beam main tendon position picked out, the position that cage bar is avoided in selection drills through vertically communicated pouring hole；Then the reinforcing for carrying out template is installed；From pouring hole into template casting concrete, in casting process, vibrating spear is inserted concrete vibrated in template, cement mortar of being emerged above concreting to the template for waiting to reinforce flat beam both sides, and when concrete no longer sinks at pouring hole, complete pouring for concrete.There is the present invention operation more to facilitate, and advantageously reduce the difficulty of construction of concreting；The waste of concrete is reduced, construction cost is saved；The advantages of being conducive to improving the intensity of crossbeam reinforcing.
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 technology
In the engineered neutralization New Buildings major project construction of concrete structure old building, portion occasionally there are
The phenomenon for dividing concrete members intensity not enough, so that causing component to produce substantial amounts of structural cracks because bearing capacity is reduced, influences
Normal use and durability to building；When the concrete strength wretched insufficiency of a large amount of components, it will cause building structure because
Lose bearing capacity and collapse.To make each concrete component in building structure to meet bearing capacity and serviceability limit state
Design requirement and overall Seismic Design Requirements, it is necessary to carry out reinforcement and strengthening to these components.
Being presently used for the reinforcement and strengthening method of 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, when being reinforced using section-increased method to crossbeam, pass
The construction method of system is：First after the bottom bar planting of crossbeam, installation form, and the template of beam width direction side is leaned outward
It is oblique into horn mouth（As shown in Figure 1）, then from casting concrete at the horn mouth, after after concrete initial set, by prominent crossbeam side
Reject at the cast gate position of wall.But, when the crossbeam needed reinforcement is flat beam, due to original flat beam bottom and upper strata floor bottom
The distance between portion is smaller（As shown in Figure 2）, it is tubaeform to pour the distance between mouth and upper strata floor slab bottoms after model sheetinstallat
Also it is smaller, it is impossible to carry out concreting work, bring great difficulty to construction.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are：How to provide it is a kind of using with
Flat beam is reinforced, easy to operate, advantageously reduces difficulty of construction, and 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 following technical scheme：
A kind of increasing reinforced construction method of the flat beam section of main body frame, including first treat the flat beam progress base treatment of reinforcing, put
The step of line and bar planting, it is characterised in that after bar planting, also comprise the following steps：
Waiting that the bottom for reinforcing flat beam picks out multiple be placed equidistant along its length and insertion in the width direction according to unwrapping wire position
Translot, the depth of translot is untill picking out beam main tendon, according to the beam main tendon position picked out, and chooses and avoids the position of cage bar and drill through
Vertically communicated pouring hole；Then the reinforcing for carrying out template is installed；
From pouring hole into template in casting concrete, casting process, vibrating spear is inserted concrete vibrated in template,
Concreting to concrete at emerge above the template for waiting to reinforce flat beam both sides cement mortar, and pouring hole no longer sink when, it is complete
Into pouring for concrete.
Using above-mentioned construction method, multiple vertically communicated pouring holes are drilled through on flat beam waiting to reinforce, because pouring hole is passed through
Through upper strata floor so that whole upper strata floor turns into the scope of operation of concreting, operation more facilitates, and reduces coagulation
The difficulty of construction that soil is poured.In addition, concreting is carried out using this method, without the both sides of template are arranged into horn mouth,
The follow-up work for rejecting protruding parts concrete is reduced, the waste of concrete is decreased, is conducive to saving construction cost.By
In pouring hole through waiting to reinforce after the concrete setting in flat beam, pouring hole, the combination between former flat beam is even closer, favorably
Beam strength after further raising is poured.Due to being provided with pouring hole, facilitate vibrating spear to insert and concrete is entered in template
Row vibrates, and is conducive to increasing the compactness of concrete, eliminates concrete because depression is cracked in new and old joint part and is carefully stitched,
Be conducive to improving the intensity that crossbeam is reinforced.
Further, when being vibrated using vibrating spear to concrete, the template use for treating the both sides for reinforcing flat beam is flat
Slab vibrator and the mode manually hammered are vibrated.
So, concrete can be vibrated to greatest extent, it is ensured that the compactness of coagulation body, improves what crossbeam was reinforced
Intensity.
Further, the step of obtaining before concreting in funnelform chute is additionally included in, will during concreting
In the chute insertion pouring hole.
So, using funnelform chute, pouring down or forth for concrete can be avoided, facilitates concreting, improves what is poured
Efficiency.
Further, before concreting, the slump to concrete is detected, it is ensured that the slump of concrete is
180±20mm。
So, be conducive to improving the mobility of concrete, be easy to concrete to be quickly filled in template, be easy to apply
Work.
Further, after the completion of concreting, in pre-hardening previous hour, secondary vibration is carried out to concrete.
So, be conducive to the compactness of further increase concrete, eliminate concrete because depression is produced in new and old joint part
Raw crackle and thin seam.
Further, the width of the translot is 50~150mm；The central moment of the two neighboring translot be 1000~
1500mm, and close to end translot apart from end distance be more 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.
So, the effective area of vibrating spear vibrated concrete can be increased.
Further, the step of base treatment is：Before construction, it will wait to reinforce the substrate surface aging of flat beam, open
Split, the with serious pollution structure of loose and surface and oil contaminant thoroughly cut to firm basic unit is cleaned, to ensure that body structure surface is hard
Gu it is intact.
Further, before bar planting, in addition to the step of flat beam of reinforcing carries out dabbing is treated：Waiting to reinforce according to unwrapping wire position
The bottom of flat beam carries out artificial chiseling processing, picks laitance and exposes stone, forms concavo-convex pitted skin.
So, be conducive to beam concrete and existing concrete that the later stage pours organically to be combined into an entirety, improve
Concrete construction Forming Quality.
Further, the step of bar planting is：Drilled according to unwrapping wire position in the bottom for waiting to reinforce flat beam, aperture
Than the big 4mm of diameter for being implanted into reinforcing bar, then surface dust is blown off untill hole inwall is water stain without floating dust with inflator；Use professional injecting glue
Rifle injecting glue since opposite side gos deep into bottom hole, irrigator is slowly transferred on marginal not side, untill filling the 2/3 of pore volume；By steel
Muscle is slowly rotated in reeve hole for injecting glue, so that bubble is discharged, it is ensured that reinforcing bar is in hole center；Treat that anchoring adhesive curing period terminates
The welding such as laggard cross girders cage bar and stirrup, colligation work.
In summary, there is the present invention operation more to facilitate, and advantageously reduce the difficulty of construction of concreting；Reduce
The waste of concrete, saves construction cost；The advantages of being conducive to improving the intensity of crossbeam reinforcing.
Brief description of the drawings
Fig. 1 is the structural representation that traditional beam section is reinforced.
Fig. 2 is structural representation of the flat beam when conventional cross-section is reinforced.
Fig. 3 is that the flat beam section in the inventive method reinforces schematic diagram.
Embodiment
With reference to embodiment, the present invention is described in further detail.
During specific implementation：Flat beam section reinforced construction method is as follows：A base treatments：Before construction, by substrate surface Ying Jian
In fact, clean, without greasy dirt and other pollutants, aging, cracking, the with serious pollution structure of loose and surface and oil contaminant will thoroughly be dug
Except to firm basic unit 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 needed reinforcement on beam section size positions line and beam
Need the line of rabbet joint picked out.
C dabbings：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 concavo-convex pitted skin, is so conducive to beam concrete and existing concrete that the later stage pours organically to be combined into one
It is overall, improve concrete construction Forming Quality.
D drillings, borehole cleaning, injecting glue, bar planting：Drilled, aperture should be greater than being implanted into bar diameter 4mm, then will with inflator
Surface dust is blown off untill hole inwall is water stain without floating dust.With professional colloid-injecting gun since opposite side gos deep into bottom hole injecting glue, marginal not side
Irrigator is slowly transferred to, untill filling the 2/3 of pore volume.Reinforcing bar is slowly rotated in reeve hole for injecting glue, so that bubble is arranged
Go out, it is ensured that reinforcing bar is in hole center.
E reinforcing bar colligations：Bar planting completes to treat that anchoring adhesive curing period terminates the welding such as laggard cross girders cage bar and stirrup, colligation work
Make.
F tick slots：Beam section is reinforced according to unwrapping wire position edge（Back portion）The wide elongated grooves of 100mm are picked out, until picking out
Untill beam main tendon, groove center is away from for 1000mm, and slot pitch beam-ends distance is 500mm.So it is effectively prevented in follow-up drilling,
Hurt beam main tendon.According to the situation for picking out beam main tendon, the suitable position of selection carries out brill circular hole.Boring aperture is that top is
100mm, bottom is 300mm, can so increase the effective area of vibrating spear vibrated concrete.
G installation forms：After the completion of drilling, formwork reinforcement installation is carried out.
H casting concretes：As shown in figure 3, using making by oneself in funneling chute patchhole, surrounding is fixed using support body,
The slump of casting concrete typically requires to be 180 ± 20mm, mobility when so being conducive to pouring, the side of bringing during to construction
Just.During casting concrete, top is vibrated using vibrating spear, and beam sides is manually hammered using vibration board
Beam side, which coordinates, to vibrate, and so concrete is vibrated to greatest extent, it is ensured that its compactness.Casting concrete is until reinforcing
Emerge above side template cement mortar, concrete no longer sinks at hole on beam, stops pouring.
After the completion of concreting, or so pre-hardening previous hour, secondary vibration is carried out to it, be so conducive to increase mixed
The compactness of soil is coagulated, concrete is eliminated because depression is cracked in new and old joint part and is carefully stitched.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limitation, all essences in the present invention with the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of increasing reinforced construction method of the flat beam section of main body frame, including first treat the flat beam of reinforcing carry out base treatment,
The step of unwrapping wire and bar planting, it is characterised in that after bar planting, also comprise the following steps：
Waiting that the bottom for reinforcing flat beam picks out multiple be placed equidistant along its length and insertion in the width direction according to unwrapping wire position
Translot, the depth of translot is untill picking out beam main tendon, according to the beam main tendon position picked out, and chooses and avoids the position of cage bar and drill through
Vertically communicated pouring hole；Then the reinforcing for carrying out template is installed；
From pouring hole into template in casting concrete, casting process, vibrating spear is inserted concrete vibrated in template,
Concreting to concrete at emerge above the template for waiting to reinforce flat beam both sides cement mortar, and pouring hole no longer sink when, it is complete
Into pouring for concrete.
2. the increasing reinforced construction method of the flat beam section of main body frame as claimed in claim 1, it is characterised in that use and vibrate
When rod vibrates to concrete, the mode that the template for the both sides for reinforcing flat beam is hammered using vibration board and manually is treated
Vibrated.
3. the increasing reinforced construction method of the flat beam section of main body frame as claimed in claim 1, it is characterised in that be additionally included in
The step of obtaining before concreting in funnelform chute, during concreting, the chute is inserted in pouring hole.
4. the increasing reinforced construction method of the flat beam section of main body frame as claimed in claim 1, it is characterised in that concrete is poured
Before building, the slump to 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 claimed in claim 1, it is characterised in that concrete is poured
After the completion of building, in pre-hardening 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 claimed in claim 1, it is characterised in that the translot
Width be 50~150mm；The central moment of the two neighboring translot is 1000~1500mm, and close to the translot distance of end
The distance of end is more than 500mm.
7. the increasing reinforced construction method of the flat beam section of main body frame as claimed in claim 1, it is characterised in that described to pour
Hole is up-small and down-big horn-like, and the aperture of upper end is 100mm, and the aperture of lower end is 300mm.
8. the increasing reinforced construction method of the flat beam section of main body frame as claimed in claim 1, it is characterised in that the basic unit
The step of processing is：Before construction, it will wait to reinforce the substrate surface aging of flat beam, cracking, loose and surface and oil contaminant seriously polluted
Structure thoroughly cut to firm basic unit is cleaned, to ensure that body structure surface is firm intact.
9. the increasing reinforced construction method of the flat beam section of main body frame as claimed in claim 1, it is characterised in that before bar planting,
Also include treating the step of flat beam of reinforcing carries out dabbing：Waiting to reinforce at the bottom progress artificial chiseling of flat beam according to unwrapping wire position
Reason, picks laitance and exposes stone, forms concavo-convex pitted skin.
10. the increasing reinforced construction method of the flat beam section of main body frame as claimed in claim 1, it is characterised in that the plant
The step of muscle is：Drilled according to unwrapping wire position in the bottom for waiting to reinforce flat beam, aperture ratio is implanted into the big 4mm of diameter of reinforcing bar,
Then surface dust is blown off untill hole inwall is water stain without floating dust with inflator；With professional colloid-injecting gun since opposite side gos deep into bottom hole
Irrigator is slowly transferred on injecting glue, marginal not side, untill filling the 2/3 of pore volume；Reinforcing bar is slowly rotated in reeve hole for injecting glue,
So that bubble is discharged, it is ensured that reinforcing bar is in hole center；Treat that anchoring adhesive curing period terminates the weldering such as laggard cross girders cage bar and stirrup
Connect, colligation works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| CN107217865A true CN107217865A (en) | 2017-09-29 |
| CN107217865B CN107217865B (en) | 2019-08-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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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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| Publication number | Publication date |
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| CN107217865B (en) | 2019-08-30 |
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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. |