CN108316153B - A kind of construction method of multistory reinforced concrete slab - Google Patents
A kind of construction method of multistory reinforced concrete slab Download PDFInfo
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- CN108316153B CN108316153B CN201810122616.4A CN201810122616A CN108316153B CN 108316153 B CN108316153 B CN 108316153B CN 201810122616 A CN201810122616 A CN 201810122616A CN 108316153 B CN108316153 B CN 108316153B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The present invention provides a kind of construction method of multistory reinforced concrete slab, the construction method, which includes that reinforcing bar is folded, pricks step, clear mould moistens step, concreting step and curing step, the construction method binds distance by changing the folded reinforcing bar binding structure pricked in step of reinforcing bar and reinforcing bar pad, change the spacing of vibrating of the vibrator in concreting step, what the single of concrete slab poured thickness and concrete layer pours interval time, change the parameters such as the curing time of concrete slab in curing step, so that the multistory reinforced concrete slab constructed out has the compression strength for improving the multistory reinforced concrete slab constructed out, honeycomb is sewed and mend and eliminated to the intensity for reducing multistory reinforced concrete slab, the advantages of leaking muscle.
Description
Technical field
The present invention relates to bridge panel technical field of construction, specifically, being to be related to a kind of multilayer for bridge panel
The construction method of armored concrete panel.
Background technique
With the fast development of the infrastructures such as highroad, railway, so that science of bridge building technology also obtains significantly
It is promoted, this also causes, quality requirement higher and higher to the technical requirements of bridge construction to be increasingly stringenter.And it is built in modern bridge
If in, bridge panel, bridge pier etc. are of crucial importance, wherein for bridge panel, the size of compression strength
There is important influence to the total quality of bridge, and in modern bridge panel, concrete is the important composition of bridge panel
Part, and current most bridges are directly poured using concrete, are had it from great, discontinuity, are led
Bridge panel is caused to be easy uneven by weight, when over time, bridge panel is easy for slight crack occur and collapse, to jeopardize the public
Safety.For this purpose, bridge panel has developed the method that some multilayers pour, still, mesh on the basis of traditional single layer pours
Before the multilayer casting method that is widely used be also to carry out concreting according to traditional panel pouring construction method, and it is this
The bridge panel of method output is still difficult to meet actual demand, and when bridge panel occurs damaged, carries out secondary
Repairing will increase economic loss, and the difficulty repaired is big, technical requirements are high.Furthermore it, also can be one even if having carried out secondary repairing
Determine the actual performance that bridge is influenced in degree, there are security risks.
Summary of the invention
To solve the above-mentioned problems, the main object of the present invention is to provide a kind of multistory reinforced concrete for improving and constructing out
The compression strength of panel eliminates honeycomb, leakage muscle, and reduces the multistory reinforced concrete of multistory reinforced concrete slab intensity distribution
The construction method of panel.
In order to realize that the main object of the present invention, the present invention provide a kind of construction method of multistory reinforced concrete slab,
Wherein, including reinforcing bar is folded and pricks step, is bound respectively to multistory reinforced layer using traditional planar process, in adjacent two layers reinforcing bar
Multiple reinforcing bar pads, multiple reinforcing bar pad rectangular array settings, and the distance between two neighboring reinforcing bar pad is arranged in interval between layer
It is 5 times to 8 times of the distance between adjacent two layers steel bar layer；Clear mould moistens step, carries out mould to the multistory reinforced layer bound
Plate is built, and is watered into the template put up, and keeps template wet；Concreting step, the placement layer by layer coagulation into template
Soil to carry out concreting to each layer of steel bar layer, the concrete layer poured every time with a thickness of between adjacent two layers steel bar layer
Distance half to 2/3rds, and the thickness of concrete layer is at least 5 centimetres, after every layer concrete layer pours, makes
It is vibrated with vibrator to concrete layer, carries out next layer concrete layer after the completion of vibrating and pour, vibrate, until completing multilayer
The one-piece casting of armored concrete panel；Curing step, it is right within 12 hours after multistory reinforced concrete slab pours
Multistory reinforced concrete slab is covered, and carries out water seasoning, curing period be 5 round the clock to 8 round the clock.
Further embodiment is concreting step further include: pouring between the time between adjacent two layers concrete layer
It is divided into 15 minutes to 30 minutes.
Further scheme is, 1 times to 1.5 of the operating radius of the vibrating spear that spacing is vibrator of vibrating of vibrator
Times.
Further scheme is concreting step further include: is being vibrated using vibrator to concrete layer
When, if vibrator is close to steel bar layer, the spacing of vibrating of vibrator is reduced into 0.8 times to 1 times of the operating radius of vibrating spear.
Further scheme is concreting step further include: is carrying out when vibrating of next layer concrete layer, vibration
Upper 4 centimetres to 6 centimetres of layer concrete layer of tamper insertion.
Further scheme is that clear mould moistens step further include: after the completion of template is built, first to the sundries in template
Be purged with the greasy dirt in steel bar layer, and check template template seam between plastic layer or mortar whether pad, then into
Row waters into the template put up.
One Preferable scheme is that, the distance between two neighboring reinforcing bar pad is the distance between adjacent two layers steel bar layer
5 times, the half with a thickness of the distance between adjacent two layers steel bar layer of the concrete layer poured every time, curing period is 5
Round the clock, the time interval that pours between adjacent two layers concrete layer is 15 minutes, the vibration that spacing is vibrator of vibrating of vibrator
1 times of the operating radius of tamper, and if vibrator close to steel bar layer when, vibrator vibrate spacing be vibrating spear operating radius
0.8 times.
Another Preferable scheme is that, the distance between two neighboring reinforcing bar pad is the distance between adjacent two layers steel bar layer
6.5 times, the concrete layer poured every time with a thickness of 7th/12nd of the distance between adjacent two layers steel bar layer, curing period
Round the clock for 6.5, the time interval that pours between adjacent two layers concrete layer is 22.5 minutes, and the spacing of vibrating of vibrator is vibration
1.25 times for smashing the operating radius of the vibrating spear of device, and if vibrator close to steel bar layer when, vibrator vibrate spacing be vibrate
0.9 times of the operating radius of stick.
Another Preferable scheme is that, the distance between two neighboring reinforcing bar pad is the distance between adjacent two layers steel bar layer
8 times, the concrete layer poured every time with a thickness of 2/3rds of the distance between adjacent two layers steel bar layer, curing period 8
A the time interval that pours between adjacent two layers concrete layer is 30 minutes round the clock, and the spacing of vibrating of vibrator is vibrator
1.5 times of the operating radius of vibrating spear, and if vibrator close to steel bar layer when, vibrator vibrate spacing be vibrating spear effect
1 times of radius.
Further embodiment is that concreting step further includes pouring observation of steps, and pouring observation of steps includes: per complete
At one layer of steel bar layer concreting when, check whether reinforcing bar, the built-in fitting of template and the steel bar layer poured move
Dynamic, deformation or blocking if so, stopping concreting immediately, and are modified before the concrete layer initial set poured.
Therefore the construction method of the multistory reinforced concrete slab of offer of the invention have improve construct out it is more
The compression strength of layer armored concrete panel eliminates honeycomb, leakage muscle, and reduces the excellent of multistory reinforced concrete slab intensity distribution
Point mainly passes through the vibration of the binding distance, vibrator of the reinforcing bar binding structure, reinforcing bar pad for changing multistory reinforced concrete slab
Smash spacing, the single of concrete layer pours thickness, concrete layer pours interval time and multistory reinforced concrete slab
Curing time enables the multistory reinforced concrete slab poured out to have excellent physical property, and can effectively improve
The compression strength of multistory reinforced concrete slab, so that the multistory reinforced concrete slab poured out can satisfy bridge panel
Actual demand, and eliminate honeycomb, leak the defects of muscle.
Detailed description of the invention
Fig. 1 is the flow diagram of the construction method first embodiment of the multistory reinforced concrete slab of the present invention.
Fig. 2 is the experimental data table of each embodiment of construction method of the multistory reinforced concrete slab of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
The construction method of multistory reinforced concrete slab provided by the invention is constructed for the panel to bridge floor, into
And the compression strength for improving the multistory reinforced concrete slab constructed out is played, honeycomb, leakage muscle are eliminated, and effectively reduce composite steel
The distribution intensity of reinforced concrete panel, so that multistory reinforced concrete slab can satisfy the actual demand of bridge.
The construction method first embodiment of multistory reinforced concrete slab:
As shown in Figure 1, the construction method of multistory reinforced concrete slab, which includes that reinforcing bar is folded, pricks the wet step of step S1, clear mould
S2, concreting step S3 and curing step S4.
Wherein, the folded step S1 that pricks of reinforcing bar includes: the reinforcing bar that dimension is chosen according to Practical Project requirement, using traditional
Planar process respectively binds multistory reinforced layer, and multiple reinforcing bar pads are arranged in interval between adjacent two layers steel bar layer, multiple
Reinforcing bar pads rectangular array setting, and the distance between two neighboring reinforcing bar pad is the 5 of the distance between adjacent two layers steel bar layer
Again to 8 times.
Specifically, first bottom layer of the reinforcing steel layer is bound using planar process, then, on the bottom layer of the reinforcing steel layer upper berth bound
If multiple reinforcing bar pads, and multiple reinforcing bars pad rectangular array is arranged, then, used on the multiple reinforcing bar pads laid
Planar process carries out the binding of second layer steel bar layer.Then, above-mentioned reinforcing bar pad lay-up operation and steel bar layer binding operation completion pair are repeated
The binding of remaining steel bar layer, until completing all reinforcing bars binding of multistory reinforced concrete slab.
In addition, the number of plies of steel bar layer is three layers or three layers or more, and the distance between bottom layer of the reinforcing steel layer and template bottom surface are
/ 5th of the distance between adjacent two layers steel bar layer are to a quarter, and the maximum between bottom layer of the reinforcing steel layer and template bottom surface
Distance is less than 5 centimetres；The distance between top layer steel bar layer and template top surface are five points of the distance between adjacent two layers steel bar layer
One of to a quarter, and the maximum distance between top layer steel bar layer and template top surface is less than 5 centimetres.The present embodiment bottom layer of the reinforcing steel
The distance between layer and template bottom surface are 1/5th of the distance between adjacent two layers steel bar layer, top layer steel bar layer and template top
The distance between face is 1/5th of the distance between adjacent two layers steel bar layer.Also, the two neighboring reinforcing bar of the present embodiment
The distance between pad is 5 times of the distance between adjacent two layers steel bar layer.
It includes: to carry out template to the multistory reinforced layer bound to build that clear mould, which moistens step S2, after the completion of template is built,
Greasy dirt in the sundries such as soil, rubbish in template and steel bar layer is carried out it is clear, in order to avoid influence multistory reinforced concrete surface
The pouring quality of plate.Then, whether the plastic layer or mortar detected between the template seam of template pads, and avoids in casting process
Concrete leaks.Then, it waters into the template put up, template is made to keep wet.
Concreting step S3 includes: that concrete is stirred according to the formula of design requirement, be then segmented concrete,
In the injection template of layering.Specifically, to template by concreting in lifts to carry out concreting to each layer of steel bar layer,
When pouring, guarantee the half with a thickness of the distance between adjacent steel bar layer of concrete layer poured every time to three/
One, and the thickness of concrete layer is at least 5 centimetres.In addition, after every layer concrete layer pours, using vibrator to the concrete layer
It vibrates, carries out next layer concrete layer after the completion of vibrating and pour, vibrate, until completing the whole of multistory reinforced concrete slab
Body pours.
Specifically, two points with a thickness of the distance between adjacent steel bar layer of the concrete layer poured every time of the present embodiment
One of.In addition, between adjacent two layers concrete layer pour time interval be 15 minutes to 30 minutes, adjacent the two of the present embodiment
The time interval that pours between layer concrete layer is 15 minutes.
In addition, the spacing of vibrating that vibrator when vibrating to concrete layer, controls vibrator is vibrating for vibrator
1 times to 1.5 times of the operating radius of side, the vibrator of the present embodiment vibrate spacing be vibrator the side that vibrates operating radius
1 times.And when being vibrated using vibrator to concrete layer, if vibrator close to steel bar layer or when touching steel bar layer,
The spacing of vibrating of vibrator is reduced into 0.8 times to 1 times of the operating radius of vibrating spear, the vibrator of the present embodiment is close to reinforcing bar
The spacing of vibrating of vibrator, is reduced into 0.8 times of the operating radius of vibrating spear by layer or when touching steel bar layer.Furthermore into
When vibrating of the next layer concrete layer of row, i.e., vibrator when vibrating to the concrete layer more than second layer, answer by vibrating spear
It is inserted into upper 4 centimetres to 6 centimetres of layer concrete layer, it is preferable that vibrating spear should be inserted into 5 centimetres of a layer concrete layer.
Concreting step S3 further includes pouring observation of steps, and pouring observation of steps includes: to complete each layer of reinforcing bar
When the concreting of layer, check whether reinforcing bar, the built-in fitting of template and the steel bar layer poured mobile, deformation or stifled occur
Plug.If so, stopping concreting immediately, and to template and the steel bar layer poured before the concrete layer initial set poured
Reinforcing bar, built-in fitting is modified.
Curing step S4 includes: after multistory reinforced concrete slab pours, to composite steel within 12 hours
Reinforced concrete panel is covered, and pour maintenance, curing period be 5 round the clock to 8 round the clock, the curing period of the present embodiment
Round the clock for 5.
The construction method second embodiment of multistory reinforced concrete slab:
Using the inventive concept of the construction method first embodiment of multistory reinforced concrete slab, multistory reinforced concrete surface
The construction method second embodiment and first embodiment of plate the difference is that:
In the folded bundle step of reinforcing bar, the distance between two neighboring reinforcing bar point is the distance between adjacent two layers steel bar layer
6.5 times, and the distance between top layer steel bar layer and template top surface are 9th/40th of the distance between adjacent two layers steel bar layer,
The distance between bottom layer of the reinforcing steel layer and template bottom surface are 9th/40th of the distance between adjacent two layers steel bar layer.
Poured in step in concreting, the concrete layer poured every time with a thickness of between adjacent two layers steel bar layer
7th/12nd of distance, the time interval that pours between adjacent two layers concrete layer is 22.5 minutes.In addition, the vibration of vibrator
1.25 times for smashing the operating radius for the vibrating spear that spacing is vibrator, and when being vibrated using vibrator to concrete layer,
If vibrator is reduced into the operating radius of vibrating spear close to steel bar layer or when touching steel bar layer, by the spacing of vibrating of vibrator
0.9 times.
In curing step, to the curing period of the multistory reinforced concrete slab poured be 6.5 round the clock.
The construction method 3rd embodiment of multistory reinforced concrete slab:
Using the inventive concept of the construction method first embodiment of multistory reinforced concrete slab, multistory reinforced concrete surface
The construction method 3rd embodiment and first embodiment of plate the difference is that:
In the folded bundle step of reinforcing bar, the distance between two neighboring reinforcing bar point is the distance between adjacent two layers steel bar layer
8 times, and the distance between top layer steel bar layer and template top surface are a quarter of the distance between adjacent two layers steel bar layer, bottom
The distance between steel bar layer and template bottom surface are a quarter of the distance between adjacent two layers steel bar layer.
Poured in step in concreting, the concrete layer poured every time with a thickness of between adjacent two layers steel bar layer
2/3rds of distance, the time interval that pours between adjacent two layers concrete layer is 330 minutes.In addition, vibrator vibrates
Spacing is 1.5 times of the operating radius of the vibrating spear of vibrator, and when being vibrated using vibrator to concrete layer, if vibration
Device is smash close to steel bar layer or when touching steel bar layer, the spacing of vibrating of vibrator is reduced into 1 times of the operating radius of vibrating spear.
In curing step, to the curing period of the multistory reinforced concrete slab poured be 8 round the clock.
As shown in Fig. 2, Fig. 2 is that the multistory reinforced concrete slab that various embodiments of the present invention are constructed out is applied with the prior art
The parameter comparison table for the multistory reinforced concrete slab that work goes out.According to " Standard for inspection and assessment of strength of concrete " (GBJ107-87)
The multistory reinforced concrete slab constructed out to construction method of the invention of the defined method of inspection and technological means it is related
Performance is detected, and can be seen that by taking the first embodiment of the present invention to 3rd embodiment as an example and in conjunction with Fig. 2 of the invention
The multistory reinforced concrete slab that construction method is constructed out is compared with for the prior art, and multistory reinforced coagulation can be effectively eliminated
The honeycomb of native panel leaks the problem of muscle, and then can effectively improve the performance of multistory reinforced concrete slab, and can obviously drop
The deviation of low built-in fitting and the deviation of absolute altitude improve the quality and assembly precision of multistory reinforced concrete slab.In addition, of the invention
The compression strength of the multistory reinforced concrete slab constructed out significantly improve compared with the prior art, intensity distribution is compared to existing
There is technology to be effectively reduced, so that multistory reinforced concrete slab there can be better stability.
As it can be seen that reinforcing bar binding structure, the reinforcing bar pad of construction method of the invention by the multistory reinforced concrete slab of change
Binding distance, the spacing of vibrating of vibrator, concrete layer pour thickness, concrete layer pours interval time and multilayer
The parameters such as the curing time of armored concrete panel, and then the problem of leaking muscle is eliminated from source, and because effective control steel
The distribution relation of muscle layer and spacing is controlled by reinforcing bar pad, thus the case where leaking muscle caused by preventing reinforcing steel bars exposed hair
It is raw.Furthermore for the multistory reinforced concrete slab that construction method of the invention is constructed out, due to can be according to adjacent reinforcing bar
The position of the spacing of layer and reinforcing bar pad controls vibrate position and the number that vibrates (spacing determines by vibrating) of concrete layer,
And then it reduces or eliminates possible existing for honeycomb.And for intensity, due to stable bar construction and and reinforcing bar
The corresponding vibrating method of structure, and then the concrete structure of multistory reinforced concrete slab has been tamped, it improves multistory reinforced
The intensity of concrete slab.Further, since using multistory reinforced layer structure, and make between keeping certain between adjacent steel bar layer
Away from so that be capable of forming between steel bar layer be combined with each other but mutually independent space structure, enable to general beat
Hole operation is only burdened with influence on a certain steel bar layer, and the performance without will affect other steel bar layers ensure that multistory reinforced concrete
The stability of panel.
In conclusion the construction method of multistory reinforced concrete slab provided by the invention is by changing multistory reinforced coagulation
The reinforcing bar binding structure of native panel, the binding distance of reinforcing bar pad, the spacing of vibrating of vibrator, concrete layer single pour thickness
Degree, concrete layer pour the curing time of interval time and multistory reinforced concrete slab, so that the composite steel poured out
Reinforced concrete panel can have excellent physical property, and can effectively improve the pressure resistance of multistory reinforced concrete slab
Degree, so that the multistory reinforced concrete slab poured out can satisfy the actual demand of bridge panel, and eliminate honeycomb, leakage muscle etc.
The multistory reinforced concrete that defect, the compression strength for the multistory reinforced concrete slab constructed out with raising and reduction are constructed out
The intensity distribution of panel.
Finally it is emphasized that the above description is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is right
For those skilled in the art, the present invention can have various change and change, all within the spirits and principles of the present invention,
Any modification, equivalent substitution, improvement and etc. done, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of construction method of multistory reinforced concrete slab characterized by comprising
Reinforcing bar is folded to prick step, is bound respectively to multistory reinforced layer using planar process, between the steel bar layer described in adjacent two layers
Interval is arranged multiple reinforcing bar pads, multiple reinforcing bars pad rectangular arrays settings, and between the two neighboring reinforcing bar pad away from
From 5 times to 8 times for the distance between steel bar layer described in adjacent two layers；
Clear mould moistens step, and the steel bar layer described in the multilayer bound carries out template and builds, and into the template put up
Watering keeps the template wet；
Concreting step, concreting in lifts is poured with carrying out concrete each layer steel bar layer in Xiang Suoshu template
It builds, the half with a thickness of the distance between steel bar layer described in adjacent two layers of the concrete layer poured every time to three/
Two, and the thickness of the concrete layer is at least 5 centimetres, after every layer of concrete layer pours, using vibrator to described mixed
Solidifying soil layer vibrates, and carries out next layer concrete layer after the completion of vibrating and pours, vibrates, until completing the multistory reinforced coagulation
The one-piece casting of native panel；
Curing step, after the multistory reinforced concrete slab pours, to the multistory reinforced coagulation within 12 hours
Native panel is covered, and carries out water seasoning, curing period be 5 round the clock to 8 round the clock.
2. construction method according to claim 1, it is characterised in that:
The concreting step further include:
The time interval that pours between concrete layer described in adjacent two layers is 15 minutes to 30 minutes.
3. construction method according to claim 2, it is characterised in that:
1 times to 1.5 times of operating radius of the vibrating spear that spacing is the vibrator of vibrating of the vibrator.
4. construction method according to claim 3, it is characterised in that:
The concreting step further include:
It, will if the vibrator is close to the steel bar layer when being vibrated using the vibrator to the concrete layer
The spacing of vibrating of the vibrator is reduced into 0.8 times to 1 times of the operating radius of the vibrating spear.
5. construction method according to claim 4, it is characterised in that:
The concreting step further include:
When vibrating of next layer concrete layer is being carried out, the vibrating spear is inserted into upper one layer of 4 centimetres to 6 lis of concrete layer
Rice.
6. construction method according to claim 5, it is characterised in that:
The clear mould moistens step further include:
After the completion of the template is built, first the greasy dirt on the sundries and the steel bar layer in the template is purged, and
It checks whether plastic layer or mortar between the template seam of the template pad, then waters into the template put up.
7. construction method according to claim 6, it is characterised in that:
The distance between two neighboring described reinforcing bar pad is 5 times of the distance between steel bar layer described in adjacent two layers；
The half with a thickness of the distance between steel bar layer described in adjacent two layers of the concrete layer poured every time；
The curing period be 5 round the clock；
The time interval that pours between concrete layer described in adjacent two layers is 15 minutes；
1 times of operating radius of the vibrating spear that spacing is the vibrator of vibrating of the vibrator, and if the vibrator lean on
When the nearly steel bar layer, 0.8 times of the operating radius that spacing is the vibrating spear of vibrating of the vibrator.
8. construction method according to claim 6, it is characterised in that:
The distance between two neighboring described reinforcing bar pad is 6.5 times of the distance between steel bar layer described in adjacent two layers；
The concrete layer poured every time with a thickness of 7/12nds of the distance between steel bar layer described in adjacent two layers；
The curing period be 6.5 round the clock；
The time interval that pours between concrete layer described in adjacent two layers is 22.5 minutes；
1.25 times of operating radius of the vibrating spear that spacing is the vibrator of vibrating of the vibrator, and if the vibrator
When close to the steel bar layer, 0.9 times of the operating radius that spacing is the vibrating spear of vibrating of the vibrator.
9. construction method according to claim 6, it is characterised in that:
The distance between two neighboring described reinforcing bar pad is 8 times of the distance between steel bar layer described in adjacent two layers；
The concrete layer poured every time with a thickness of 2/3rds of the distance between steel bar layer described in adjacent two layers；
The curing period be 8 round the clock；
The time interval that pours between concrete layer described in adjacent two layers is 30 minutes；
1.5 times of operating radius of the vibrating spear that spacing is the vibrator of vibrating of the vibrator, and if the vibrator
When close to the steel bar layer, 1 times of the operating radius that spacing is the vibrating spear of vibrating of the vibrator.
10. construction method according to any one of claims 1 to 9, it is characterised in that:
The concreting step further includes pouring observation of steps, and the observation of steps that pour include:
When every concreting for completing one layer of steel bar layer, the reinforcing bar of inspection template and the steel bar layer poured,
Whether built-in fitting there is mobile, deformation or blocking；
If so, stopping concreting immediately, and it is modified before the concrete layer initial set poured.
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