CN115284418A - Liftable prefabricated bridge steel structure stand column die and using method thereof - Google Patents
Liftable prefabricated bridge steel structure stand column die and using method thereof Download PDFInfo
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- CN115284418A CN115284418A CN202211029679.8A CN202211029679A CN115284418A CN 115284418 A CN115284418 A CN 115284418A CN 202211029679 A CN202211029679 A CN 202211029679A CN 115284418 A CN115284418 A CN 115284418A
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- liftable
- base platform
- die
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 12
- 239000004567 concrete Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000746 Structural steel Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007306 turnover Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 10
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/384—Treating agents
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a liftable prefabricated bridge steel structure upright column die and a using method thereof. The liftable prefabricated bridge steel structure upright post mold is simple and easy to install, the base platform is driven to lift through the hydraulic support rod, the function of flexibly customizing the height of the upright post according to engineering requirements is realized, the turnover rate of the mold is high, and the manufacturing cost of the mold is saved. And the mould has an integral structure without turning, is convenient to open and close, has high automation level of the construction process, saves manpower and improves the construction efficiency.
Description
Technical Field
The invention relates to the field, in particular to a liftable prefabricated bridge steel structure stand column die and a using method thereof.
Background
According to the manufacturing and construction method, the bridge upright post is divided into a cast-in-place post and a prefabricated post. The cast-in-situ reinforced concrete column has good integrity, but the work load of formwork support is large, the efficiency of the cast-in-situ construction process is low, the energy consumption is high, and the environmental pollution is large. The prefabricated column has the advantages of high structural reliability, high engineering progress, small influence on the surrounding environment and the like. In recent years, with the rapid development of prestressed concrete continuous rigid frame bridges, the demand for prefabricated rigid frame bridge columns is increasing. Due to the connection characteristics of the rigid upright columns and the engineering geological conditions, a large number of upright columns with different heights need to be prefabricated. The height of an existing stand column can not be flexibly customized according to engineering requirements, and the existing stand column mold is often required to be provided with various specifications and models, so that the mold is large in manufacturing cost, low in turnover rate and serious in waste phenomenon. The existing prefabricated stand column construction process is that a mould is firstly assembled in a flat and lying mode, then concrete is integrally and vertically lifted and poured, the process is time-consuming and labor-consuming, demoulding is not easy to occur, and the construction efficiency is low.
The comparison file CN102409621A provides an easily detachable steel mould for a hollow bridge beam, which comprises an inner membrane, an outer membrane and an end cover, wherein the inner membrane comprises an inner membrane bottom plate, a hydraulic lifting mechanism, an inner membrane upper template, a hydraulic closing mechanism and an inner membrane side plate, the outer membrane comprises an outer membrane bottom plate and an outer membrane upper template, the function that the inner membrane is separated from a bridge center hole of a bridge beam body without resistance in the recovery process is realized in the comparison file, the demoulding is quick, and the technical problem of customizing the height of an upright column cannot be solved.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a lifting type prefabricated bridge steel structure upright post die and a using method thereof, wherein the height of a prefabricated bridge upright post can be adjusted. The technical solution of the invention is as follows:
the utility model provides a liftable formula precast bridge steel constructs stand mould, including first external mold, the base platform, the second external mold, a plurality of hydraulic pressure bracing piece and a plurality of base vaulting pole, be equipped with the opening on the first external mold, the opening size and the size phase-match of second external mold, be equipped with a plurality of round pins on the open-ended one side of first external mold, one side of second external mold is articulated with first external mold through the round pin axle, the opposite side of second external mold is equipped with a plurality of bolt holes, be equipped with the screw that the same quantity corresponds with the bolt hole on the open-ended opposite side of first external mold, the hydraulic pressure bracing piece includes hydraulic cylinder, hydraulic cylinder's the cylinder body and the bottom of base vaulting pole are all fixed on the upper surface of the bottom plate of first external mold, hydraulic cylinder's piston and base platform's lower terminal surface fixed connection, the base vaulting pole sets up in the below of base platform, the base vaulting pole is connected with the base platform is detachable.
As preferred technical scheme, the quantity of hydraulic pressure bracing piece is four, and four hydraulic pressure bracing pieces are central symmetric distribution under base platform.
As the preferred technical scheme, the base support rod comprises a plurality of hollow rods which are sequentially sleeved from outside to inside, an adjustable lifting hole is formed in each hollow rod, and a positioning pin is inserted into each adjustable lifting hole of the base support rod in a fixed state.
As the preferred technical scheme, the number of the base support rods is not less than four.
According to a preferable technical scheme, in a mold closing state, one side, far away from the pin shaft, of the second outer mold is fixedly connected with the first outer mold through a plurality of bolts.
As the preferred technical scheme, sealing strips are arranged on two sides of the opening and made of rubber.
As a preferable technical scheme, the first outer die, the second outer die and the base platform are all made of carbon structural steel plates, and the wall thickness of each steel plate is 8-22 mm.
A use method of a liftable prefabricated bridge steel structure stand column mold comprises the following steps:
the method comprises the following steps: one side of the opening of the first outer die is hinged with the second outer die through a plurality of pin shafts, the second outer die is opened, and the base platform is driven to rise to a specified height through a hydraulic oil cylinder of the hydraulic support rod;
step two: stretching the base support rod to enable the top end of the base support rod to abut against the lower side of the base platform, and inserting the positioning pin into the corresponding adjustable lifting hole to fix the base support rod;
step three: coating an oil film on the inner side of the mold, placing the lifting reinforcement cage on the base platform, and spraying polyurethane foam along the circumference of the lower side of the base platform for filling;
step four: closing the second outer die, and fixedly connecting one side of the second outer die, which is far away from the pin shaft, with the first outer die through a plurality of bolts;
step five: pouring concrete and naturally curing;
step six: after the concrete has hoisting strength after hardening, taking down the bolts on the two sides of the opening, rotating the second outer die to an open state around the pin shaft, and completing demoulding by hoisting the upright post;
step seven: and cleaning the die and entering the next construction cycle.
Compared with the prior art, the invention has the beneficial effects that:
(1) The liftable prefabricated bridge steel structure upright post mold is simple and easy to install, the adjustable lifting of the base platform is realized by the up-and-down movement of the piston of the hydraulic support rod, so that the height of the prefabricated bridge upright post is adjusted, the height of the upright post can be flexibly customized according to engineering requirements, the turnover rate of the mold is high, and the manufacturing cost of the mold is saved.
(2) The liftable prefabricated bridge steel structure stand column die has an integral structure without turning, is convenient to open and close, and avoids the complex process of horizontally laying, assembling and vertically lifting the die.
(3) The construction process of the liftable prefabricated bridge steel structure stand column die is high in automation level, manpower is saved, and construction efficiency is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of a liftable prefabricated bridge steel structure column mold.
FIG. 2 is a schematic view of an open state of the liftable prefabricated bridge steel structure column mold.
In the figure: 1. a first outer mold; 2. a base platform; 3. a hydraulic support rod; 4. a base brace rod; 5. a second outer mold; 6. a pin shaft; 7. and (4) bolts.
Detailed Description
The technical solution of the present invention is further described below with reference to the specific embodiments:
as shown in fig. 2, this embodiment provides a liftable prefabricated bridge steel structure stand column die, including first external mold 1, base platform 2, second external mold 5, a plurality of hydraulic support rods 3 and a plurality of base vaulting poles 4, be equipped with the opening on first external mold 1, the opening size matches with the size of second external mold 5, be equipped with a plurality of round pin axles 6 on one side of the opening of first external mold 1, one side of second external mold 5 is articulated with first external mold 1 through round pin axle 6, the opposite side of second external mold 5 is equipped with a plurality of bolt holes, be equipped with the screw that the same quantity corresponds with the bolt hole on the opposite side of the opening of first external mold 1, hydraulic support rod includes hydraulic cylinder and servo motor, hydraulic cylinder's cylinder body and base vaulting pole 4's bottom are all fixed on the upper surface of first external mold 1's bottom plate, hydraulic cylinder's piston and base platform 2's lower terminal surface fixed connection, base vaulting pole 4 sets up in base platform 2's below, base vaulting pole 4 and base platform 2 detachable connection. The hydraulic oil cylinder is driven by the servo motor, so that the piston of the hydraulic oil cylinder moves up and down, and the base platform 2 is driven to lift to a specified position, thereby realizing the function of customizing the height of the prefabricated bridge upright post.
As shown in fig. 2, the number of the hydraulic support rods 3 is four, and the four hydraulic support rods 3 are distributed under the base platform 2 in a central symmetry manner, so that the hydraulic support rods 3 can stably support the base platform 2.
As shown in fig. 2, the base stay bar 4 includes a plurality of hollow bars sequentially sleeved from outside to inside, the hollow bars are provided with adjustable lifting holes, and the base stay bar 4 is in a fixed state, and positioning pins are inserted in the adjustable lifting holes. The number of the base support rods 4 is not less than four. After the height of base platform 2 is adjusted, base stay bar 4 is stretched to enable the innermost hollow bar to be abutted to the lower side of base platform 2, then the positioning pin is inserted into the corresponding adjustable lifting hole to fix base stay bar 4, the effect of temporarily assisting in supporting base platform 2 is achieved, and base platform 2 is prevented from settling when a reinforcement cage is placed and concrete is poured.
As shown in fig. 1, in the mold clamping state, one side of the second outer mold 5 away from the pin 6 is fixedly connected with the first outer mold 1 through a plurality of bolts 7. The bolts 7 correspond to the bolt holes and the screw holes one by one, and the bolts 7 sequentially penetrate through the bolt holes and the screw holes to fix the first outer mold 1 and the second outer mold 5, so that mold assembly is completed.
As shown in fig. 2, sealing strips are arranged on two sides of the opening, and the sealing strips are made of rubber. The sealing strips are used for sealing the splicing positions of the first outer die 1 and the second outer die 5 and preventing concrete from flowing out of the gaps of the openings.
As shown in FIG. 2, the first outer mold 1, the second outer mold 5 and the base platform 2 are all made of carbon structural steel plates, and the thickness of the steel plates is 8 mm-22 mm. The carbon structural steel plate is easy to smelt, has higher hardness and longer service life.
As shown in fig. 1 and 2, a method for using a liftable prefabricated bridge steel structure stand column mold comprises the following steps:
the method comprises the following steps: the second outer die 5 is hinged with one side of the opening of the first outer die 1 through a plurality of pin shafts 6, the second outer die 5 is opened, and a servo motor of the hydraulic support rod 3 drives a piston of a hydraulic oil cylinder to move up and down so as to drive the base platform 2 to rise to a specified height;
step two: stretching the base support rod 4 to enable the top end of the base support rod 4 to abut against the lower side of the base platform 2, and inserting the positioning pin into the corresponding adjustable lifting hole to fix the base support rod 4;
step three: coating an oil film on the inner side of the mold, placing the lifting reinforcement cage on the base platform 2, and spraying polyurethane foam along the circumference of the lower side of the base platform 2 for filling;
step four: closing the second outer die 5, and fixedly connecting one side of the second outer die 5, which is far away from the pin shaft 6, with the first outer die 1 through a plurality of bolts 7 to complete die assembly;
step five: pouring concrete and naturally curing;
step six: after the concrete is hardened and has hoisting strength, taking down all the bolts 7, rotating the second outer die 5 around the pin shaft 6 to an open state, and hoisting the upright post to complete demoulding;
step seven: and cleaning the die and entering the next construction cycle.
Liftable formula precast bridge steel constructs stand mould installation simple and easy in this embodiment, drives 2 lifts of base platform through hydraulic support pole 3, realizes can ordering the function of stand height according to the engineering demand is nimble, and the mould turnover rate is high, has saved the mould cost. And the mould has an integral structure without turning, is convenient to open and close, avoids the complex process of horizontally laying, assembling and vertically lifting the mould, has high automation level, saves manpower and improves the construction efficiency.
The present invention is further explained and not limited by the embodiments, and those skilled in the art can make various modifications as necessary after reading the present specification, but all the embodiments are protected by the patent law within the scope of the claims.
Claims (8)
1. The utility model provides a liftable formula prefabricated bridge steel constructs stand mould, its characterized in that, includes first external mold, base platform, second external mold, a plurality of hydraulic pressure bracing piece and a plurality of base vaulting pole, be equipped with the opening on the first external mold, the opening size with the size phase-match of second external mold, first external mold be equipped with a plurality of round pins on open-ended one side, one side of second external mold is passed through the round pin axle with first external mold is articulated, the opposite side of second external mold is equipped with a plurality of bolt holes, first external mold be equipped with on the open-ended opposite side the same quantity with the screw that the bolt hole corresponds, the hydraulic pressure bracing piece includes hydraulic cylinder, hydraulic cylinder's cylinder body with the bottom of base vaulting pole is all fixed on the upper surface of the bottom plate of first external mold, hydraulic cylinder's piston with base platform's lower terminal surface fixed connection, the base vaulting pole sets up base platform's below, the base vaulting pole with the base platform is detachable connection.
2. The liftable prefabricated bridge steel structure stand column mold of claim 1, wherein the number of the hydraulic support rods is four, and the four hydraulic support rods are distributed under the base platform in a central symmetry manner.
3. The liftable prefabricated bridge steel structure stand column mold according to claim 1, wherein the base stay bar comprises a plurality of hollow bars which are sequentially sleeved from outside to inside, adjustable lifting holes are formed in the hollow bars, and positioning pins are inserted into the adjustable lifting holes when the base stay bar is in a fixed state.
4. The liftable prefabricated bridge steel structure stand column mold according to claim 1, wherein the number of the base supporting rods is not less than four.
5. The liftable prefabricated bridge steel structure column die as claimed in claim 1, wherein in the die-closing state, one side of the second outer die, which is far away from the pin shaft, is fixedly connected with the first outer die through a plurality of bolts.
6. The liftable prefabricated bridge steel structure stand column mold of claim 1, wherein sealing strips are arranged on two sides of the opening, and the sealing strips are made of rubber.
7. The self-standing light crane for the cargo tank of an LNG ship as claimed in claim 1, wherein the first outer mold, the second outer mold and the base platform are made of carbon structural steel plates, and the wall thickness of the steel plates is 8-22 mm.
8. A use method of a liftable prefabricated bridge steel structure stand column mold is characterized by comprising the following steps:
the method comprises the following steps: one side of an opening of the first outer die is hinged with the second outer die through a plurality of pin shafts, the second outer die is opened, and the base platform is driven to rise to a specified height through a hydraulic oil cylinder of the hydraulic support rod;
step two: stretching the base support rod to enable the top end of the base support rod to abut against the end face below the base platform, and inserting the positioning pin into the corresponding adjustable lifting hole to fix the base support rod;
step three: coating an oil film on the inner side of the mold, placing the lifting reinforcement cage on the base platform, and spraying polyurethane foam along the circumference of the lower side of the base platform for filling gaps;
step four: closing the second outer die, and fixedly connecting one side of the second outer die, which is far away from the pin shaft, with the first outer die through a plurality of bolts to complete die assembly;
step five: pouring concrete and naturally curing;
step six: after the concrete is hardened and has lifting strength, taking down each bolt, rotating the second outer die to an open state around the pin shaft, and lifting the stand column to complete demolding;
step seven: and cleaning the die and entering the next construction cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211029679.8A CN115284418A (en) | 2022-08-25 | 2022-08-25 | Liftable prefabricated bridge steel structure stand column die and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211029679.8A CN115284418A (en) | 2022-08-25 | 2022-08-25 | Liftable prefabricated bridge steel structure stand column die and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115284418A true CN115284418A (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211029679.8A Pending CN115284418A (en) | 2022-08-25 | 2022-08-25 | Liftable prefabricated bridge steel structure stand column die and using method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202428530U (en) * | 2011-12-16 | 2012-09-12 | 北京联东投资(集团)有限公司 | Segment hydraulic internal mold device capable of adjusting size |
| CN205475081U (en) * | 2016-03-31 | 2016-08-17 | 中交第三航务工程局有限公司江苏分公司 | Adjustable template of breakwater bucket formula component |
| CN106677133A (en) * | 2017-02-16 | 2017-05-17 | 中国葛洲坝集团第工程有限公司 | Large-sized multi-rib precast aqueduct formwork anti-deformation supporting device and construction method |
| CN106863555A (en) * | 2017-03-07 | 2017-06-20 | 中铁工程设计咨询集团有限公司 | And of Varying Depth PC track girder adjustable forms |
| CN209158615U (en) * | 2018-05-30 | 2019-07-26 | 河北工业大学 | A kind of radial compression moulding process pipe of cement production mold |
| CN113235472A (en) * | 2021-05-18 | 2021-08-10 | 中国水利水电第七工程局有限公司 | Concrete placement platform truck is contained to apron |
| CN113618886A (en) * | 2021-08-20 | 2021-11-09 | 刘炳书 | Box girder template for municipal administration road and bridge construction |
-
2022
- 2022-08-25 CN CN202211029679.8A patent/CN115284418A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202428530U (en) * | 2011-12-16 | 2012-09-12 | 北京联东投资(集团)有限公司 | Segment hydraulic internal mold device capable of adjusting size |
| CN205475081U (en) * | 2016-03-31 | 2016-08-17 | 中交第三航务工程局有限公司江苏分公司 | Adjustable template of breakwater bucket formula component |
| CN106677133A (en) * | 2017-02-16 | 2017-05-17 | 中国葛洲坝集团第工程有限公司 | Large-sized multi-rib precast aqueduct formwork anti-deformation supporting device and construction method |
| CN106863555A (en) * | 2017-03-07 | 2017-06-20 | 中铁工程设计咨询集团有限公司 | And of Varying Depth PC track girder adjustable forms |
| CN209158615U (en) * | 2018-05-30 | 2019-07-26 | 河北工业大学 | A kind of radial compression moulding process pipe of cement production mold |
| CN113235472A (en) * | 2021-05-18 | 2021-08-10 | 中国水利水电第七工程局有限公司 | Concrete placement platform truck is contained to apron |
| CN113618886A (en) * | 2021-08-20 | 2021-11-09 | 刘炳书 | Box girder template for municipal administration road and bridge construction |
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Application publication date: 20221104 |