CN103171052A - Double-column wave-dissipating body one-time prefabricating construction method - Google Patents
Double-column wave-dissipating body one-time prefabricating construction method Download PDFInfo
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- CN103171052A CN103171052A CN2013101201696A CN201310120169A CN103171052A CN 103171052 A CN103171052 A CN 103171052A CN 2013101201696 A CN2013101201696 A CN 2013101201696A CN 201310120169 A CN201310120169 A CN 201310120169A CN 103171052 A CN103171052 A CN 103171052A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a double-column wave-dissipating body one-time prefabricating construction method which comprises the following steps: (1) prefabricating a concrete bottom tire; (2) paying off and bottoming; (3) binding steel bars; (4) erecting a template; (5) hoisting top steel bars; (6) reserving a lifting hole; (7) grouting the template; (8) concrete pouring; (9) removing the template; and (10) maintaining. According to the double-column wave-dissipating body one-time prefabricating construction method, by adoption of the one-time casting molding of set combined spliced steel template, the novel lifting design and the grouting method, the field construction process is simplified, various quality problems in the traditional prefabricating process for the double-column wave-dissipating body are solved, the working efficiency is improved, the cost is saved, and an obvious effect is achieved.
Description
Technical field
The present invention relates to the hydraulic engineering production field, relate to specifically the disposable prefabricated construction engineering method of a kind of twin columns wave-breaking body.
Background technology
The protective such as breakwater, shore protection engineering is occupied critical role in port construction, wave-breaking body as basic building block is widely used in hydraulic engineering, a kind of doubie-column type wave eliminating block structure is disclosed in Chinese patent CN01225082.1, this kind wave-breaking body structure is piled up stable, the wave that disappears is effective, and now queen post wave-breaking body structure commonly used mostly is the deformable body of this structure or this structure.The twin columns wave-breaking body is comprised of upper and lower plates, there are connecting plate or post in the upper and lower plates both sides, middle part between upper and lower plates also has a Long Circle upright supports, therefore, traditional queen post wave-breaking body precasting process is generally with upper and lower plates and column is prefabricated respectively is integrated again, the material that takes consuming time not only, and also many common quality defects can't overcome in prefabricated process, make the wave-breaking body visual defects that precasts serious, affect efficiency of construction.
Summary of the invention
Technical problem to be solved by this invention will provide a kind of construction that can disposable prefabricated twin columns wave-breaking body exactly.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
The disposable prefabricated construction engineering method of a kind of twin columns wave-breaking body comprises the steps:
(1) at the bottom of concrete, tire is prefabricated
Carry out end tire unwrapping wire on the concrete terrace of having poured into a mould, guarantee fetal position at the bottom of concrete accurately;
Prop up loose tool plate at the bottom of vertical concrete along the line that discharges, high with spirit level measurement module top mark, guarantee level;
Carry out concrete after acceptance(check) and water, artificial lower ash, vibration board vibrates, and guarantees that concrete is closely knit smooth;
(2) unwrapping wire shop fixtures
After at the bottom of concrete, the tire construction is completed, adopt the fixed length steel wire rope to carry out twin columns wave-breaking body circular arc unwrapping wire, press the rich 5cm in the every limit of twin columns wave-breaking body base plate two layers, tire upper berth saturating felts at the bottom of concrete, adjacent saturating felts overlap joint, the levels overlapping the slot is staggered, the upper strata overlapping the slot is bonding with adhesive tape, and with ink line case line of ink marker on bullet on tire at the bottom of concrete;
(3) assembling reinforcement
Assembling reinforcement from bottom to top, first colligation bottom and column position reinforcing bar, the independent good top rebars of colligation is with standby;
During reinforcing bar binding with the reinforcing bar binding of two oblique pulls on every face wall body, two muscle are Eight characters racking seizing, after colligation is complete, holds wall steel bar with steel wire rope and prevent that wall steel bar is subjected to displacement, and Concrete seat pad is installed;
(4) formwork support arrangement
Remove template plate face foreign material, check the grouting bar, evenly brushing template is oily, and loop wheel machine lifting template puts in place and carries out composite assembly;
(5) lifting top rebars
After formwork support arrangement is completed, with the good top rebars integral hoisting of colligation to backform;
(6) lifting hole(eyelet) is reserved
Pre-buried pvc pipe in the top rebars cage;
(7) template grouting
The template base angle is bumped into T-shaped rubber strip, make rubber strip and concrete at the bottom of tire pressure tight, at the bottom of template and concrete, certain pressure is reserved in the tire junction; Template splicing seam place is bumped into T-shaped rubber strip, spillage when preventing from pouring into a mould;
(8) concrete cast
Concrete self-template window pours into, should be from bottom to top, and symmetrical layering, the drop height degree that inclines must not be over 2 meters;
Adopt poker vibrator to carry out concrete and vibrate, vault mainly adopts form vibrator to vibrate, and each vibrating time of shaking is preferably 20-30s;
Vibrate and wipe one's face for the first time after completing, initial set noseplate quadric-plastering;
(9) form removal
Twin columns wave-breaking body concrete strength reaches to be needed to carry out form removable after intensity, first carrying out the side form of top layer template removes, carry out successively model of the column dismounting, bottom form removable, in demolishing process, carry out the support conversion of top layer template bed die, make top layer template bed die pass through the leading screw supporting ﹠ stablizing in plate top surface, remove at last top layer template bed die;
(10) maintenance
Adopt film covering curing twin columns wave-breaking body.
Further, in step (3), the iron wire of assembling reinforcement is buckled and should be bent to the inside, must not be overhanging.
Further, top rebars is Double-level Reticulated chip architecture form.
Further, concrete is answered continuous placing, and when occuring for some reason intermittently, its intermittent time should be not less than the concrete presetting period of anterior layer and maybe can reinvent the time; When producing cold seam, do in advance treatment of construction joints.
Further, the concrete horizontal slice is carried out, lift height≤400mm, and poring rate is controlled at≤1m/ hour.
Further, when adopting the poker vibrator vibrated concrete, the moving interval of vibrator is not more than 1.5 times of acting radial of vibrator, should keep the distance of 50～100mm with side form, inserts lower-layer concrete 50～100mm; When vibrate complete after, should vertically slowly extract, must not put down in building the storehouse and drag.
Further, in step (10), portland cement is mixed the concrete of system, and its curing time must not be less than 7 days; Be mixed with additive or the concrete of seepage resistance demand is arranged, must not be less than 14 days, during concrete curing, poor, the surface temperature of concrete internal temperature and surface temperature and the difference of environment temperature should not be greater than 20 ℃, maintenance must not be greater than 15 ℃ with the difference of coolant-temperature gage and surface temperature of concrete, should not water during lower than 5 ℃ when ambient air temperature.
The invention has the beneficial effects as follows:
The disposable prefabricated construction engineering method of twin columns wave-breaking body disclosed in this invention adopts typing composite assembly steel form one-time cast-forming, novel hoisting Design and grouting method, simplified on-site construction processes, solved the every common quality defect in twin columns wave-breaking body tradition precasting process, improved operating efficiency, save cost, obtained tangible result.Specifically, mainly comprise the following aspects:
Adopt composite erecting formwork, compare with traditional layering is prefabricated, template once Zhi Li is completed, one-time cast-forming, and formwork rigidity requires little, saving steel, and reduced the apparent mass defective of twin columns wave-breaking bodies, saved repairing link in the past.
Bar one-time colligation moulding does not need the bar splicing colligation, has reduced the waste of reinforcing bar, has improved the efficient of assembling reinforcement cage.
Concrete is built one-shot forming, does not need to carry out that concrete connects stubble rushes hair or dabbing, can greatly shorten the prefabricated duration of twin columns wave-breaking body.
Traditional handicraft is by the suspension ring lifting method of pre-buried suspension ring, during the pre-buried installation of suspension ring, needs encryption suspension centre place reinforcing bar, bring certain difficulty to concrete vibrating, the present invention changes suspension ring into pre-buried pvc pipe, and by the lifting of round steel latch, not only the construction lifting is convenient, and can save round steel, also saved concrete simultaneously.
In tradition twin columns wave-breaking body precasting process, grouting adopts single linear sealing rod, after template is installed, can't reach the effect of complete grouting, makes prefabricated components the spillage phenomenon occur.Changing twin columns wave-breaking body base angle grouting bar into T-shaped rubber strip in the present invention is set in channel-section steel, outstanding department can use fashion of extrusion, rubber strip and end tire pressure is tight, make template and tire junction, the end reserve certain pressure, during casting concrete, good grouting effect can be played in the bottom, and when guaranteeing that the twin columns wave-breaking body is prefabricated, the base angle is straight, attractive in appearance, grouting is effective, has improved the presentation quality of member.
Description of drawings
Fig. 1 is the disclosed twin columns wave-breaking body of the embodiment of the present invention 1 front view;
Fig. 2 is the disclosed twin columns wave-breaking body of the embodiment of the present invention 1 upper plate top view;
Fig. 3 is the disclosed twin columns wave-breaking body of the embodiment of the present invention 1 lower plate top view;
Fig. 4 is the disclosed twin columns wave-breaking body of the embodiment of the present invention 1 backform top view;
Fig. 5 is the disclosed twin columns wave-breaking body of the embodiment of the present invention 1 integral mold plate front view;
Fig. 6 is the disclosed twin columns wave-breaking body of the embodiment of the present invention 1 bed die top view;
Fig. 7 is the disclosed T-shaped grouting rubber strip schematic diagram of the embodiment of the present invention 1.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1, is the disclosed twin columns wave-breaking body of the present embodiment structural representation as Fig. 1-3, and Fig. 4-6 disclose the template schematic diagram of prefabricated this kind twin columns wave-breaking body, and the disposable prefabricated construction engineering method of above twin columns wave-breaking body comprises the steps:
(1) at the bottom of concrete, tire is prefabricated
Carry out end tire unwrapping wire on the concrete terrace of having poured into a mould, guarantee fetal position at the bottom of concrete accurately;
Prop up loose tool plate at the bottom of vertical concrete along the line that discharges, high with spirit level measurement module top mark, guarantee level;
Carry out concrete after acceptance(check) and water, artificial lower ash, vibration board vibrates, and guarantees that concrete is closely knit smooth;
(2) unwrapping wire shop fixtures
After at the bottom of concrete, the tire construction is completed, adopt the fixed length steel wire rope to carry out twin columns wave-breaking body circular arc unwrapping wire, press the rich 5cm in the every limit of twin columns wave-breaking body base plate two layers, tire upper berth saturating felts at the bottom of concrete, adjacent saturating felts overlap joint 5cm, the levels overlapping the slot is staggered, the upper strata overlapping the slot is bonding with adhesive tape, and with ink line case line of ink marker on bullet on tire at the bottom of concrete;
(3) assembling reinforcement
Assembling reinforcement from bottom to top, first colligation bottom and column position reinforcing bar, the independent good top rebars of colligation is with standby;
During reinforcing bar binding with the reinforcing bar binding of two oblique pulls on every face wall body, two muscle are Eight characters racking seizing, after colligation is complete, holds wall steel bar with steel wire rope and prevent that wall steel bar is subjected to displacement, and Concrete seat pad is installed; The iron wire of assembling reinforcement is buckled and should be bent to the inside, must not be overhanging, and top rebars is Double-level Reticulated chip architecture form;
(4) formwork support arrangement
Remove template plate face foreign material, check the grouting bar, evenly brushing template is oily, and loop wheel machine lifting template puts in place and carries out composite assembly;
(5) lifting top rebars
After formwork support arrangement is completed, with the good top rebars integral hoisting of colligation to backform;
(6) lifting hole(eyelet) is reserved
Pre-buried pvc pipe in the top rebars cage;
(7) template grouting
As shown in Figure 7, the template base angle is bumped into T-shaped rubber strip, make rubber strip and concrete at the bottom of tire pressure tight, at the bottom of template and concrete, certain pressure is reserved in the tire junction; Template splicing seam place is bumped into T-shaped rubber strip, spillage when preventing from pouring into a mould;
(8) concrete cast
Concrete self-template window pours into, should be from bottom to top, and symmetrical layering, the drop height degree that inclines must not be over 2 meters; Concrete is answered continuous placing, and when occuring for some reason intermittently, its intermittent time should be not less than the concrete presetting period of anterior layer and maybe can reinvent the time; When producing cold seam, do in advance treatment of construction joints; The concrete horizontal slice is carried out, lift height≤400mm, and poring rate is controlled at≤1m/ hour;
Adopt poker vibrator to carry out concrete and vibrate, vault mainly adopts form vibrator to vibrate, and each vibrating time of shaking is preferably 20-30s; When adopting the poker vibrator vibrated concrete, the moving interval of vibrator is not more than 1.5 times of acting radial of vibrator, should keep the distance of 50～100mm with side form, inserts lower-layer concrete 50～100mm; When vibrate complete after, should vertically slowly extract, must not put down in building the storehouse and drag; Vibrate and wipe one's face for the first time after completing, initial set noseplate quadric-plastering;
(9) form removal
Twin columns wave-breaking body concrete strength carries out form removable after reaching desirable strength, first carrying out the side form of top layer template removes, carry out successively model of the column dismounting, bottom form removable, in demolishing process, carry out the support conversion of top layer template bed die, make top layer template bed die pass through the leading screw supporting ﹠ stablizing in plate top surface, remove at last top layer template bed die;
(10) maintenance
Adopt film covering curing twin columns wave-breaking body, portland cement is mixed the concrete of system, and its curing time must not be less than 7 days; Be mixed with additive or the concrete of seepage resistance demand is arranged, must not be less than 14 days, during concrete curing, poor, the surface temperature of concrete internal temperature and surface temperature and the difference of environment temperature should not be greater than 20 ℃, maintenance must not be greater than 15 ℃ with the difference of coolant-temperature gage and surface temperature of concrete, should not water during lower than 5 ℃ when ambient air temperature.
Claims (7)
1. the disposable prefabricated construction engineering method of twin columns wave-breaking body, is characterized in that, comprises the steps:
(1) at the bottom of concrete, tire is prefabricated
Carry out end tire unwrapping wire on the concrete terrace of having poured into a mould, guarantee fetal position at the bottom of concrete accurately;
Prop up loose tool plate at the bottom of vertical concrete along the line that discharges, high with spirit level measurement module top mark, guarantee level;
Carry out concrete after acceptance(check) and water, artificial lower ash, vibration board vibrates, and guarantees that concrete is closely knit smooth;
(2) unwrapping wire shop fixtures
After at the bottom of concrete, the tire construction is completed, adopt the fixed length steel wire rope to carry out twin columns wave-breaking body circular arc unwrapping wire, press the rich 5cm in the every limit of twin columns wave-breaking body base plate two layers, tire upper berth saturating felts at the bottom of concrete, adjacent saturating felts overlap joint, the levels overlapping the slot is staggered, the upper strata overlapping the slot is bonding with adhesive tape, and with ink line case line of ink marker on bullet on tire at the bottom of concrete;
(3) assembling reinforcement
Assembling reinforcement from bottom to top, first colligation bottom and column position reinforcing bar, the independent good top rebars of colligation is with standby;
During reinforcing bar binding with the reinforcing bar binding of two oblique pulls on every face wall body, two muscle are Eight characters racking seizing, after colligation is complete, holds wall steel bar with steel wire rope and prevent that wall steel bar is subjected to displacement, and Concrete seat pad is installed;
(4) formwork support arrangement
Remove template plate face foreign material, check the grouting bar, evenly brushing template is oily, and loop wheel machine lifting template puts in place and carries out composite assembly;
(5) lifting top rebars
After formwork support arrangement is completed, with the good top rebars integral hoisting of colligation to backform;
(6) lifting hole(eyelet) is reserved
Pre-buried pvc pipe in the top rebars cage;
(7) template grouting
The template base angle is bumped into T-shaped rubber strip, make rubber strip and concrete at the bottom of tire pressure tight, at the bottom of template and concrete, certain pressure is reserved in the tire junction; Template splicing seam place is bumped into T-shaped rubber strip, spillage when preventing from pouring into a mould;
(8) concrete cast
Concrete self-template window pours into, should be from bottom to top, and symmetrical layering, the drop height degree that inclines must not be over 2 meters;
Adopt poker vibrator to carry out concrete and vibrate, vault mainly adopts form vibrator to vibrate, and each vibrating time of shaking is preferably 20-30s;
Vibrate and wipe one's face for the first time after completing, initial set noseplate quadric-plastering;
(9) form removal
Twin columns wave-breaking body concrete strength reaches to be needed to carry out form removable after intensity, first carrying out the side form of top layer template removes, carry out successively model of the column dismounting, bottom form removable, in demolishing process, carry out the support conversion of top layer template bed die, make top layer template bed die pass through the leading screw supporting ﹠ stablizing in plate top surface, remove at last top layer template bed die;
(10) maintenance
Adopt film covering curing twin columns wave-breaking body.
2. the disposable prefabricated construction engineering method of twin columns wave-breaking body according to claim 1, it is characterized in that: in step (3), the iron wire of assembling reinforcement is buckled and should be bent to the inside, must not be overhanging.
3. the disposable prefabricated construction engineering method of twin columns wave-breaking body according to claim 1, it is characterized in that: in step (3), top rebars is the Double-level Reticulated chip architecture.
4. the disposable prefabricated construction engineering method of twin columns wave-breaking body according to claim 1, it is characterized in that: in step (8), concrete is answered continuous placing, and when occuring for some reason intermittently, its intermittent time should be not less than the concrete presetting period of anterior layer and maybe can reinvent the time; When producing cold seam, do in advance treatment of construction joints.
5. the disposable prefabricated construction engineering method of twin columns wave-breaking body according to claim 5, it is characterized in that: in step (8), the concrete horizontal slice is carried out, lift height≤400mm, poring rate is controlled at≤1m/ hour.
6. the disposable prefabricated construction engineering method of twin columns wave-breaking body according to claim 6, it is characterized in that: in step (8), when adopting the poker vibrator vibrated concrete, the moving interval of vibrator is not more than 1.5 times of acting radial of vibrator, should keep the distance of 50～100mm with side form, insert lower-layer concrete 50～100mm; When vibrate complete after, should vertically slowly extract, must not put down in building the storehouse and drag.
7. the disposable prefabricated construction engineering method of twin columns wave-breaking body according to claim 1, it is characterized in that: in step (10), portland cement is mixed the concrete of system, and its curing time must not be less than 7 days; Be mixed with additive or the concrete of seepage resistance demand is arranged, must not be less than 14 days, during concrete curing, poor, the surface temperature of concrete internal temperature and surface temperature and the difference of environment temperature should not be greater than 20 ℃, maintenance must not be greater than 15 ℃ with the difference of coolant-temperature gage and surface temperature of concrete, should not water during lower than 5 ℃ when ambient air temperature.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103770218A (en) * | 2013-11-29 | 2014-05-07 | 中交第二航务工程局有限公司 | Segment matching and prefabricating method for large-scale standardized structural element |
| CN105780721A (en) * | 2016-03-31 | 2016-07-20 | 中交第三航务工程局有限公司江苏分公司 | Precasting method of single-barrel multi-bin-barrel type structural member for building breakwater |
| CN106120653A (en) * | 2016-08-17 | 2016-11-16 | 中交航局第三工程有限公司 | A kind of torsion-bending ratio prefabricated end tire structure and construction method |
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| CN202344670U (en) * | 2011-11-08 | 2012-07-25 | 中铁十七局集团第四工程有限公司 | Grout stopping device for reserved reinforcement holes of precast beam end template |
| KR20130022566A (en) * | 2011-08-25 | 2013-03-07 | (주)대우건설 | Constructing method of breakwater structure using tetrapod and connecting member |
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| CN103770218A (en) * | 2013-11-29 | 2014-05-07 | 中交第二航务工程局有限公司 | Segment matching and prefabricating method for large-scale standardized structural element |
| CN103770218B (en) * | 2013-11-29 | 2017-01-18 | 中交第二航务工程局有限公司 | Segment matching and prefabricating method for large-scale standardized structural element |
| CN105780721A (en) * | 2016-03-31 | 2016-07-20 | 中交第三航务工程局有限公司江苏分公司 | Precasting method of single-barrel multi-bin-barrel type structural member for building breakwater |
| CN105780721B (en) * | 2016-03-31 | 2018-01-30 | 中交第三航务工程局有限公司江苏分公司 | It is a kind of to construct method for prefabricating of the breakwater with the component of storehouse tub more than single barrel |
| CN106120653A (en) * | 2016-08-17 | 2016-11-16 | 中交航局第三工程有限公司 | A kind of torsion-bending ratio prefabricated end tire structure and construction method |
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| CN103171052B (en) | 2015-09-30 |
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