CN111287140B - Steel template for automatic wharf box corner beam and construction method of box corner beam - Google Patents
Steel template for automatic wharf box corner beam and construction method of box corner beam Download PDFInfo
- Publication number
- CN111287140B CN111287140B CN202010166481.9A CN202010166481A CN111287140B CN 111287140 B CN111287140 B CN 111287140B CN 202010166481 A CN202010166481 A CN 202010166481A CN 111287140 B CN111287140 B CN 111287140B
- Authority
- CN
- China
- Prior art keywords
- steel
- box corner
- corner beam
- elevation
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 100
- 239000010959 steel Substances 0.000 title claims abstract description 100
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 24
- 238000005498 polishing Methods 0.000 claims description 21
- 238000009415 formwork Methods 0.000 claims description 14
- 238000012423 maintenance Methods 0.000 claims description 13
- 229910000838 Al alloy Inorganic materials 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000013102 re-test Methods 0.000 claims description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 208000034158 bleeding Diseases 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/068—Landing stages for vessels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a steel template for an automatic wharf box corner beam and a construction method of the box corner beam, wherein the steel template comprises a steel template body, the steel template body comprises a cuboid-shaped framework, a plurality of vertical support frames are welded in the framework at equal intervals, a plurality of reinforcing rods are welded at the bottom of the framework, and the reinforcing rods are positioned between two adjacent support frames; the fine adjustment device comprises an adjusting screw rod, an adjusting bolt is connected to the adjusting screw rod in a threaded manner, and the adjusting bolt is fixed on the reinforcing rod; the bottom of the adjusting screw rod is provided with a gasket, and the bottom of the adjusting screw rod is abutted to the gasket. The steel template for the automatic wharf box corner beam is stable and reliable in structure, the elevation of the steel template can be finely adjusted through the fine adjustment device, the adjustment process is simple and easy to operate, and the adjustment precision is high. The construction method of the automatic wharf box corner beam is easy to operate and implement, can meet the precision requirement of the automatic wharf box corner beam, and has the top surface elevation and flatness error of +/-2.5 mm.
Description
Technical Field
The invention relates to the technical field of box corner beams, in particular to a steel template for an automatic wharf box corner beam and a construction method of the box corner beam.
Background
In recent years, with the rapid development of global economic resuscitation and international trade, domestic ports are constructed with automated wharfs in order to improve comprehensive competitiveness of port container services. The method is characterized in that the automatic container grabbing success rate is the main index in the automatic wharf, key factors for guaranteeing the automatic container grabbing success rate in civil engineering construction are box corner beam top surface elevation and flatness error control, construction is carried out according to a traditional box corner beam concrete pouring process and the existing water transportation engineering construction specification, and the box corner beam top surface elevation and the flatness error can not meet the high-precision requirement of civil engineering of the automatic wharf, so that the automatic container grabbing success rate is influenced, and the loading and unloading efficiency is reduced. In addition, failure to successfully grab a container can also cause serious security accidents.
Disclosure of Invention
The invention aims to provide a steel template for an automatic wharf box corner beam and a construction method of the box corner beam, and aims to overcome the defect that the top surface elevation and flatness errors of the box corner beam can not meet the high-precision requirement.
Therefore, the invention provides a steel template for an automatic wharf box corner beam, which comprises a steel template body, wherein the steel template body comprises a cuboid-shaped framework, a plurality of vertical support frames are welded in the framework at equal intervals, a plurality of reinforcing rods are welded at the bottom of the framework, and the reinforcing rods are positioned between two adjacent support frames; the fine adjustment device comprises an adjusting screw rod, an adjusting bolt is connected to the adjusting screw rod in a threaded manner, and the adjusting bolt is fixed on the reinforcing rod; and a gasket is arranged at the bottom of the adjusting screw rod, and the bottom of the adjusting screw rod is abutted to the gasket.
Preferably, a support plate is fixed to one side surface of the frame in the longitudinal direction.
The invention provides an automatic wharf box corner beam construction method, wherein a steel formwork of an automatic wharf box corner beam is the steel formwork; the construction method comprises the following steps: (1) preparing the steel template, polishing the top surface of the steel template, and controlling the allowable deviation of the surface flatness within 1 mm; (2) welding the adjusting bolt of the fine adjustment device to the reinforcing bar; (3) pouring a box corner beam cushion layer and installing a steel reinforcement framework; (4) the steel templates are respectively arranged on two sides of the steel reinforcement framework, and the supporting plates of the steel templates are abutted against the side faces of the steel reinforcement framework; (5) adjusting the elevation of the steel formwork by rotating the adjusting screw rod, and then fixing the steel formwork; (6) repeatedly measuring the elevation; (7) pouring concrete; (8) collecting concrete; (9) and (5) concrete curing.
Preferably, in step (6), the elevation retest process includes: rechecking and leveling the elevation of the steel template again by using an electronic level and a laser leveling instrument according to the height point of the guide measurement index, and finely adjusting the elevation of the steel template by using the adjusting screw rod; and adjusting the verticality of the template through a tensioner, finally measuring the elevation and the verticality of the steel template again, and reinforcing the steel template after the steel template is qualified.
Preferably, in the step (7), the concrete pouring process includes: when pouring, parallel pushing is adopted in the horizontal direction, and a continuous pouring mode of oblique layering, thin layer pouring, natural flowing, sequential pushing and one-time in-place is adopted in the vertical direction.
Preferably, the step (8) includes: a50 mm control line is leveled through the top surface of the beam body before the face folding construction, the elevation of the top surface of the box corner beam is preliminarily determined, a polishing machine is adopted for the face folding construction process by matching with an aluminum alloy rod, the flatness and the elevation of the top surface of the box corner beam can be effectively guaranteed, the height difference of the adjacent box corner beam is controlled within +2.5mm, and the impression quality of concrete is improved.
Preferably, in the step (8), the concrete surface collecting process includes: after pouring and mixing are finished, an aluminum alloy rod is used for strickling and primary slurry lifting, after strickling is finished, the elevation of the top surface of the upper edge of the template is repeatedly measured by a high-precision level gauge and a laser super-level gauge in a double-control mode, if the elevation changes, the fine adjustment device is used for fine adjustment, and after fine adjustment, strickling is carried out again; and observing and judging 6 hours after pouring, polishing and slurry lifting twice by using a grinding disc at the moment close to initial setting, polishing the surface by following the manual grinding of the fine part, detaching the grinding disc from the polishing machine at the moment when the concrete reaches the initial setting, polishing twice by using the grinding disc, polishing the surface by using the manual grinding of the fine part, and finally roughening and collecting the surface.
Preferably, in the step (9), the concrete curing process includes: in the winter construction stage, the maintenance is carried out in a greenhouse and coal stove mode before the form removal, and the moisture-preserving and heat-preserving maintenance is carried out by covering a plastic film, geotextile and a cotton quilt after the form removal, wherein the maintenance time is not less than 14 days; and in the non-winter construction stage, water spraying maintenance is carried out according to the temperature condition.
Compared with the prior art, the invention has the advantages and positive effects that: the invention provides a steel template for an automatic wharf box corner beam and a construction method of the box corner beam, wherein the steel template comprises a steel template body which comprises a cuboid-shaped frame, a plurality of vertical support frames are welded in the frame at equal intervals, a plurality of reinforcing rods are welded at the bottom of the frame, and the reinforcing rods are positioned between two adjacent support frames; the fine adjustment device comprises an adjusting screw rod, an adjusting bolt is connected to the adjusting screw rod in a threaded manner, and the adjusting bolt is fixed on the reinforcing rod; and a gasket is arranged at the bottom of the adjusting screw rod, and the bottom of the adjusting screw rod is abutted to the gasket. The steel template for the automatic wharf box corner beam is stable and reliable in structure, the elevation of the steel template can be finely adjusted through the fine adjustment device, the adjustment process is simple and easy to operate, and the adjustment precision is high. The fine adjustment device comprises an adjusting screw rod, an adjusting bolt is connected to the adjusting screw rod in a threaded manner, and the elevation of the steel template can be adjusted by rotating the adjusting screw rod; the bottom of adjusting screw is contradicted and is had the gasket, and the gasket can play the supporting role to adjusting screw. The construction method of the automatic wharf box corner beam is easy to operate and implement, can meet the precision requirement of the automatic wharf box corner beam, and has the advantages that the top surface elevation and the flatness error of the box corner beam are +/-2.5 mm; the box corner beam has good apparent quality, meets the requirements of over-standard elevation, flatness and settlement (PHC pile foundation), and avoids the phenomenon that the container loading and unloading equipment cannot identify and stop grabbing in the debugging process because the traditional process precision cannot meet the requirements and the box stacking error exceeds the allowable range; the total debugging time of the equipment is reduced from eleven months at one stage to about seven months at two stages, so that the debugging time is greatly shortened; meanwhile, the efficiency of identifying, grabbing and loading and unloading the container automation equipment can be improved.
Other features and advantages of the present invention will become more apparent upon reading of the following detailed description of the invention in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a steel form for an automated quay box corner beam of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a rear view of FIG. 1;
FIG. 4 is a schematic structural diagram of one embodiment of a fine adjustment device for steel templates of an automated wharf box corner beam according to the present invention;
fig. 5 is a top view of the structure of an embodiment of the invention in which the steel form and the steel skeleton are combined.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided to illustrate and explain the present invention and to be understood not to limit the present invention.
As shown in fig. 1 to 4, the steel formwork for the automatic wharf box corner beam of the embodiment includes a steel formwork body, which includes a rectangular frame 10, a plurality of vertical support frames 11 are welded at equal intervals in the frame, a plurality of reinforcing rods 12 are welded at the bottom of the frame 10, and the reinforcing rods 12 are located between two adjacent support frames 11; the fine adjustment device comprises an adjusting screw rod 21, an adjusting bolt 22 is connected to the adjusting screw rod 21 in a threaded mode, and the adjusting bolt 22 is fixed on the reinforcing rod; the bottom of the adjusting screw 21 is provided with a gasket 23, and the bottom of the adjusting screw 21 is abutted against the gasket 23.
The steel form structure for the automatic wharf box corner beam of the embodiment is stable and reliable, the elevation of the steel form can be finely adjusted through the fine adjustment device, the adjustment process is simple and easy to operate, and the adjustment precision is high. The fine adjustment device comprises an adjusting screw rod 21, an adjusting bolt 22 is connected to the adjusting screw rod 21 in a threaded mode, and the elevation of the steel formwork can be adjusted by rotating the adjusting screw rod 21; the bottom of the adjusting screw rod 21 is abutted with a gasket 23, and the gasket 23 can support the adjusting screw rod 21.
A plurality of vertical support frames 11 are welded at equal intervals in the frame, a plurality of reinforcing rods 12 are welded at the bottom of the frame 10, the reinforcing rods 12 are located between the two adjacent support frames 11, the whole steel formwork structure can be stable and reliable, and the strength is high.
In this embodiment, a support plate 13 is welded and fixed to one side surface of the frame 10 in the longitudinal direction.
The construction method of the automatic wharf box corner beam is easy to operate and implement, the precision requirement of the automatic wharf box corner beam can be met, and the top surface elevation and the flatness error of the box corner beam are +/-2.5 mm; the box corner beam has good apparent quality, meets the requirements of over-standard elevation, flatness and settlement (PHC pile foundation), and avoids the phenomenon that the container loading and unloading equipment cannot identify and stop grabbing in the debugging process because the traditional process precision cannot meet the requirements and the box stacking error exceeds the allowable range; the total debugging time of the equipment is reduced from eleven months in one period to about seven months in two periods, and the debugging time is greatly shortened. The efficiency of container automation equipment discernment, snatching, handling can be improved, it snatchs, deposits the container and influences the handling time to avoid handling equipment adjustment repeatedly that ground unevenness causes.
The automatic wharf box corner beam construction method of the embodiment optimizes and innovates a box corner beam steel formwork and a concrete surface folding construction process, and specifically (1) steel formwork top surface elevation control innovation: steel form installation micromatic setting cooperates high accuracy electronic level and laser leveling instrument to steel form top surface elevation fine setting, can make elevation fine setting control at 1mm within range, satisfies full automatization pier adjacent case angle beam elevation, roughness error 2.5mm precision requirement completely (standard allowance error top surface elevation +5, -10mm, top surface roughness 5 mm). (2) The concrete surface-closing process is innovative: in order to ensure the surface smoothness of the box corner beam, the concrete surface is changed from 3 times to 6 times, the surface folding time is determined according to the concrete pouring season, temperature, slump and the like, the box corner beam is immediately scraped and extracted with an aluminum alloy rod once after the concrete is poured, a grinding disc with a grinding disc is used for grinding and extracting the concrete twice when the initial setting time is close, the concrete is polished and polished with a manual trowel for detail surface smoothing, the grinding disc with the trowel is dismounted by a polishing machine when the concrete reaches the initial setting time, the trowel is driven to polish and polish twice, the concrete is manually polished and folded again, and finally the surface is roughened and folded once and is covered with a film for moisture preservation and maintenance in time.
The automatic wharf box corner beam construction method comprises the following steps:
(1) preparing a steel template, wherein the steel template is formed by welding steel plates with the thickness of 5 mm; polishing the top surface of the steel template, and controlling the allowable deviation of the surface flatness within 1 mm;
(2) a fine adjustment device is welded on each reinforcing rod 12, and the fine adjustment device is close to the supporting plate 13; an adjusting bolt 23 of the fine adjustment device is welded on the reinforcing rod 12, a gasket 23 is placed at the bottom of the adjusting screw rod 21, and the bottom of the adjusting screw rod 21 is abutted to the gasket 23;
(3) pouring a box corner beam cushion layer to facilitate the supporting and mounting of the steel template and ensure that the steel template has an adjusting space; the gap between the steel template and the box corner beam cushion layer is blocked by cement mortar, so that the leakage and the die running are prevented, and the concrete pouring quality is influenced; then binding a steel reinforcement framework 30 on the cushion layer;
(4) steel templates are respectively arranged on two sides of the steel reinforcement framework 30, and supporting plates 13 of the steel templates are abutted against the side surfaces of the steel reinforcement framework 30;
(5) the elevation of the steel template is adjusted by rotating the adjusting screw rod 21, and then the steel template is fixed;
(6) repeatedly measuring the elevation; rechecking the elevation of the leveling steel template by using an electronic level and a laser leveling instrument according to the height point of the guide measurement index, and finely adjusting the elevation of the steel template by using an adjusting screw 21; adjusting the verticality of the template through a tensioner, finally measuring the elevation and the verticality of the steel template again, and reinforcing the steel template after the steel template is qualified;
(7) pouring concrete; when pouring, parallel propulsion is adopted in the horizontal direction, and a continuous pouring mode of oblique layering, thin layer pouring, natural flowing, sequential propulsion and one-time in-place is adopted in the vertical direction; can simplify the concrete bleeding treatment and ensure that the upper layer and the lower layer of the concrete are well combined.
The concrete is vibrated after being poured, water and gaps generated by the concrete on the lower parts of the coarse aggregate and the horizontal reinforcing steel bars due to bleeding are removed, and the bond stress on the reinforcing steel bars is improved, so that the compactness, the strength and the crack resistance of the concrete are enhanced. Vibration points are uniformly distributed so as to prevent over-vibration and leakage vibration, vibration is dense, concrete does not sink any more and bubbles do not appear, and a vibrating rod is inserted quickly and pulled slowly, preferably at a distance of 300 mm. The depth of the vibrator inserted into the next layer is not less than 50mm, so that the concrete of the upper layer and the lower layer is tightly combined.
The concrete is vibrated by a vibrating rod, the surface of the concrete is vibrated by the vibrating rod when the steel bar is placed under the concrete, the concrete is slightly higher than the designed elevation when the concrete is spread in an imaginary mode, the part of the concrete higher than the steel template after the concrete is uniformly and compactly vibrated is scraped and collected by an aluminum alloy plate, the aluminum alloy plate is close to the upper edge of the steel template, and the upper edge of the steel template is guaranteed to be completely cleaned by floating slurry.
(8) Collecting concrete; leveling out a 50mm control line through the top surface of the beam body before the face folding construction, and preliminarily determining the top surface elevation of the box corner beam; the invention adopts the polishing machine to cooperate with the aluminum alloy rod to carry out the surface folding construction process, can effectively ensure the control of the flatness and the elevation of the top surface of the box corner beam, control the height difference of the adjacent box corner beam within +2.5mm, and improve the impression quality of concrete.
The concrete surface collecting process comprises the following steps: after concrete is poured, an aluminum alloy rod is used for strickling and primary slurry lifting immediately, after strickling is finished, the elevation of the top surface of the upper edge of the template is repeatedly measured by double control of a high-precision level gauge and a laser super-level gauge, if deviation exists, fine adjustment is carried out by using a fine adjustment device, and strickling is carried out again after fine adjustment; and observing and judging 6 hours after pouring (the specific time can be selected according to construction season, temperature and slump, the slump is controlled within the range of 140 +/-20 mm), polishing and extracting slurry twice by using a grinding disc at the moment of approaching initial setting, polishing the surface by following the manual grinding of the fine part, detaching the grinding disc by using a polishing machine at the moment of reaching the initial setting, polishing twice by using the grinding disc and the manual grinding of the fine part, manually grinding the surface again, and finally roughening and collecting the surface.
(9) Curing the concrete; in the winter construction stage, the maintenance is carried out in a greenhouse and coal stove mode before the form removal, and the moisture-preserving and heat-preserving maintenance is carried out by covering a plastic film, geotextile and a cotton quilt after the form removal, wherein the maintenance time is not less than 14 days; and in the non-winter construction stage, water spraying maintenance is carried out according to the temperature condition. The concrete curing is a key link of the box corner beam foundation construction, and aims to reduce the internal and external temperature difference during concrete pouring so as to reduce the internal self-restraint stress of concrete, reduce the cooling speed of a concrete block, and fully utilize the tensile strength of later-stage concrete so as to improve the anti-cracking capacity of the concrete after bearing the external restraint stress. The foundation concrete may have cracks during open-air curing, and during the period, heat-insulating curing measures should be taken on the upper surface of the concrete to increase the curing temperature of the concrete and reduce the temperature difference between the inside and the outside so as to control the occurrence of the cracks.
(10) Dismantling the steel template; firstly, a crane is used for hoisting the hoisting point of the steel formwork, and after the crane hoists the hoisting point and is stable, the steel formwork connecting rod piece is dismantled. When the steel templates are dismantled, the connecting rod pieces are dismantled first, and then the steel templates on the two sides are dismantled first, and then the end cap templates are dismantled. After the steel template is dismantled, the steel template is horizontally placed on a storage yard, and a release agent is uniformly brushed, so that the steel template is convenient to use next time. The positions of pits, salient points and the like which influence the quality of the steel template need to be repaired so as to ensure the appearance quality of the box corner beam. The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (4)
1. A steel form for automizing sign indicating number first case angle beam, its characterized in that includes
The steel template body comprises a rectangular framework, a plurality of vertical support frames are welded in the framework at equal intervals, a plurality of reinforcing rods are welded at the bottom of the framework, and the reinforcing rods are positioned between every two adjacent support frames;
the fine adjustment device comprises an adjusting screw rod, an adjusting bolt is connected to the adjusting screw rod in a threaded manner, and the adjusting bolt is fixed on the reinforcing rod; a gasket is arranged at the bottom of the adjusting screw rod, and the bottom of the adjusting screw rod is abutted against the gasket;
a support plate is fixed on one side surface of the frame in the length direction;
automatic wharf box corner beam construction method
The method comprises the following steps:
(1) preparing the steel template, polishing the top surface of the steel template, and controlling the allowable deviation of the surface flatness within 1 mm;
(2) welding the adjusting bolt of the fine adjustment device to the reinforcing bar;
(3) pouring a box corner beam cushion layer and installing a steel reinforcement framework;
(4) the steel templates are respectively arranged on two sides of the steel reinforcement framework, and the supporting plates of the steel templates are abutted against the side faces of the steel reinforcement framework;
(5) adjusting the elevation of the steel formwork by rotating the adjusting screw rod, and then fixing the steel formwork;
(6) repeatedly measuring the elevation;
(7) pouring concrete;
(8) collecting concrete;
(9) curing the concrete;
the step (8) comprises: a50 mm control line is set through leveling the top surface of a beam body before the face folding construction, the top surface elevation of the box corner beam is preliminarily determined, the face folding construction process is carried out by matching a polishing machine with an aluminum alloy rod, the flatness and the elevation of the top surface of the box corner beam can be effectively guaranteed, the height difference of the adjacent box corner beam is controlled within +2.5mm, and the impression quality of concrete is improved;
in the step (8), the concrete surface collecting process comprises the following steps:
after concrete is poured, an aluminum alloy rod is used for strickling and primary slurry lifting immediately, after strickling is finished, the elevation of the top surface of the upper edge of the template is repeatedly measured by a high-precision level gauge and a laser super-level gauge in a double-control mode, if the elevation changes, the fine adjustment device is used for fine adjustment, and after fine adjustment, strickling is carried out again;
and observing and judging 6 hours after pouring, polishing and slurry lifting twice by using a grinding disc at the moment close to initial setting, polishing the surface by following the manual grinding of the fine part, detaching the grinding disc from the polishing machine at the moment when the concrete reaches the initial setting, polishing twice by using the grinding disc, polishing the surface by using the manual grinding of the fine part, and finally roughening and collecting the surface.
2. The steel form for an automated quay box corner beam of claim 1,
in the step (6), the elevation retest process includes: rechecking and leveling the elevation of the steel template again by using an electronic level and a laser leveling instrument according to the height point of the guide measurement index, and finely adjusting the elevation of the steel template by using the adjusting screw rod;
and adjusting the verticality of the template through a tensioner, finally measuring the elevation and the verticality of the steel template again, and reinforcing the steel template after the steel template is qualified.
3. The steel form for an automated quay box corner beam of claim 1,
in the step (7), the concrete pouring process comprises the following steps: when pouring, parallel pushing is adopted in the horizontal direction, and a continuous pouring mode of oblique layering, thin layer pouring, natural flowing, sequential pushing and one-time in-place is adopted in the vertical direction.
4. The steel form for an automated quay box corner beam of claim 1,
in the step (9), the concrete curing process includes:
in the winter construction stage, the maintenance is carried out in a greenhouse and coal stove mode before the form removal, and the moisture-preserving and heat-preserving maintenance is carried out by covering a plastic film, geotextile and a cotton quilt after the form removal, wherein the maintenance time is not less than 14 days; and in the non-winter construction stage, water spraying maintenance is carried out according to the temperature condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166481.9A CN111287140B (en) | 2020-03-11 | 2020-03-11 | Steel template for automatic wharf box corner beam and construction method of box corner beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166481.9A CN111287140B (en) | 2020-03-11 | 2020-03-11 | Steel template for automatic wharf box corner beam and construction method of box corner beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111287140A CN111287140A (en) | 2020-06-16 |
| CN111287140B true CN111287140B (en) | 2022-03-01 |
Family
ID=71022535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010166481.9A Active CN111287140B (en) | 2020-03-11 | 2020-03-11 | Steel template for automatic wharf box corner beam and construction method of box corner beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111287140B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525871A (en) * | 2009-04-17 | 2009-09-09 | 广西壮族自治区水电工程局 | Multifunctional complete cantilever form and concrete pouring method thereby |
| CN201817814U (en) * | 2010-09-17 | 2011-05-04 | 中国十七冶集团有限公司 | Adjustable fixed support of vertical surface sheet steel form |
| CN204475342U (en) * | 2014-12-30 | 2015-07-15 | 南京道广建筑模板有限公司 | Pile structure concrete in mass plate device |
| CN205134291U (en) * | 2015-10-29 | 2016-04-06 | 中国水利水电第十六工程局有限公司 | Large -scale steel form with adjustable |
-
2020
- 2020-03-11 CN CN202010166481.9A patent/CN111287140B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525871A (en) * | 2009-04-17 | 2009-09-09 | 广西壮族自治区水电工程局 | Multifunctional complete cantilever form and concrete pouring method thereby |
| CN201817814U (en) * | 2010-09-17 | 2011-05-04 | 中国十七冶集团有限公司 | Adjustable fixed support of vertical surface sheet steel form |
| CN204475342U (en) * | 2014-12-30 | 2015-07-15 | 南京道广建筑模板有限公司 | Pile structure concrete in mass plate device |
| CN205134291U (en) * | 2015-10-29 | 2016-04-06 | 中国水利水电第十六工程局有限公司 | Large -scale steel form with adjustable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111287140A (en) | 2020-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101713237B (en) | Construction method of large-volume original decorative large pier stud fair-faced concrete | |
| CN111560976B (en) | Two system conversion pile foundation underpins structure | |
| CN108532466A (en) | A kind of bridge pier over-form construction technique | |
| CN113216010A (en) | Construction method for closure section of corrugated steel web bridge | |
| CN114808776A (en) | Prefabricated installation construction method for prefabricated box culvert pipe | |
| CN110629769A (en) | Cutting slope prismatic anchor rod frame beam rapid construction method | |
| CN112282294A (en) | Construction method of steel fiber wear-resistant terrace | |
| CN108277777A (en) | Wave wall substep pouring construction process | |
| CN111287140B (en) | Steel template for automatic wharf box corner beam and construction method of box corner beam | |
| CN108677722A (en) | Hollow High Pier with Thin Wall stub top section construction technology | |
| CN210117716U (en) | Trapezoidal foundation ditch lateral wall concrete typical forms of elevartor shaft | |
| CN109881699B (en) | Method for molding and installing concrete tire of assembled tongue-and-groove Miller type universal raft foundation | |
| CN114809603B (en) | Construction method for awning facing bare concrete of special-shaped structure of high-speed rail station house | |
| CN110747762A (en) | Cement member crossing highway and its installation method | |
| CN115256615A (en) | Intelligent shower maintenance standard construction system for prefabricated box girder of expressway | |
| CN112726513B (en) | Prestressed hollow truss arch design and construction method | |
| CN210712595U (en) | Cement member crossing road | |
| CN111467846A (en) | Construction method of fine grating and rotational flow grit chamber | |
| CN111877191A (en) | Method for reinforcing enlarged section of double-arch bridge | |
| CN213978845U (en) | Concrete lining board | |
| CN110578298A (en) | Concrete pouring process for top of viaduct upright post | |
| CN110230271A (en) | Bridge biased displacement post-reinforcing resets construction method | |
| CN114016743B (en) | Concrete pouring method for large-sized steel-clad reinforced concrete protective door | |
| CN216839039U (en) | Multi-span crossover continuous beam combined support | |
| CN109267580B (en) | Concrete reinforcing steel bar combined structure and pouring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No.12 Jingba Road, Huangdao District, Qingdao City, Shandong Province Applicant after: QINGDAO PORT INTERNATIONAL Co.,Ltd. Applicant after: QINGDAO PORT (Group) PORT ENGINEERING Co.,Ltd. Address before: The city of north port green road 266000 Shandong city of Qingdao province No. 6 Applicant before: QINGDAO PORT INTERNATIONAL Co.,Ltd. Applicant before: QINGDAO PORT (Group) PORT ENGINEERING Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |