CN108755448B - Tool and method for positioning, installing and dismantling large-span continuous rigid frame suspension irrigation end template - Google Patents
Tool and method for positioning, installing and dismantling large-span continuous rigid frame suspension irrigation end template Download PDFInfo
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- CN108755448B CN108755448B CN201810931872.8A CN201810931872A CN108755448B CN 108755448 B CN108755448 B CN 108755448B CN 201810931872 A CN201810931872 A CN 201810931872A CN 108755448 B CN108755448 B CN 108755448B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention discloses a tool and a method for positioning, installing and dismantling a large-span continuous rigid frame suspension irrigation end template, wherein the tool comprises an integral beam end template formed by a plurality of template units, and the template units are divided according to the reserved hole positions of reinforcing steel bars as boundaries and comprise a fixed-length steel plate and fixed-length angle steel; the steel bar hole slotting is arranged on the fixed-length angle steel; the part without holes or with few holes inside is a fixed-length steel plate; during construction, cutting a fixed-length steel plate and fixed-length angle steel according to the size of the template unit; and correspondingly arranging a steel bar hole for grooving; fixedly mounting fixed-length angle steel to the designed beam end line position; installing a fixed-length steel plate, fixing angle steel with the steel plate by using short steel bars, and penetrating longitudinal steel bars; adopting reinforcing measures to the beam end templates, and pouring concrete; and when the beam end template is removed, the short steel bars connected with each part of the beam end template are removed, and each template unit is independently removed. The invention can greatly improve the construction efficiency of positioning, installing and dismantling the end mould, reduce the construction investment and improve the construction quality.
Description
Technical Field
The invention relates to the technical field of end mold design, in particular to a tool and a method for positioning, installing and dismantling a large-span continuous rigid frame suspension irrigation end mold plate.
Background
Along with the discharge of the related construction process instruction of the continuous beam by the railway head office, the construction quality of the continuous beam is obviously improved. The prior form of adopting a wood die and a steel plate to process an end template can not meet the requirements of the current society on the construction quality of the continuous beam.
The traditional mode of directly perforating on the template in the end mould design easily leads to the lower, higher construction risk of form removal efficiency, and template deformation serious cycle use number of times is few to throw-in greatly.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the tool and the method for positioning, mounting and dismounting the large-span continuous rigid frame cantilever-irrigation end template, which can greatly improve the construction efficiency of positioning, mounting and dismounting the end template, save the construction time and reduce the construction investment, and effectively improve the construction quality of the end part of the beam body. The technical proposal is as follows:
the tool for positioning, mounting and dismounting the large-span continuous rigid frame suspension irrigation end template comprises an integral beam end template formed by a plurality of template units, wherein the template units are divided according to the positions of reserved holes of reinforcing steel bars as boundaries, and the tool comprises a fixed-length steel plate and fixed-length angle steel; the steel bar hole slotting is arranged on the fixed-length angle steel; the part without holes or with few holes is a fixed-length steel plate.
Further, the fixed-length steel plate and the fixed-length angle steel are fixedly connected through short steel bars.
A method for positioning, installing and dismantling a large-span continuous rigid frame cantilever irrigation end template comprises the following steps:
step 1: cutting a fixed-length steel plate and fixed-length angle steel according to the size of a template unit divided by an integral beam end template;
step 2: forming a steel bar hole slot on the fixed-length angle steel, and forming a hole on the fixed-length steel plate reserved with a small number of steel bar holes;
step 3: mounting fixed-length angle steel to the designed beam end line position, and connecting the fixed-length angle steel with the bottom die and the side die in a spot welding manner;
step 4: installing a fixed-length steel plate, fixing the fixed-length angle steel with the fixed-length steel plate by using a short steel bar, and penetrating a longitudinal steel bar;
step 5: adopting reinforcing measures to the beam end templates, and pouring concrete;
step 6: and when the beam end template is removed, the short steel bars connected with each part of the beam end template are removed, and each template unit is independently removed.
The beneficial effects of the invention are as follows: the invention fully utilizes the characteristic of the reserved holes of the reinforcing steel bars in the process of end die processing, and divides the end die into a plurality of units by taking the positions of the reserved holes of the reinforcing steel bars as boundaries. The steel bar hole slotting design is on the fixed-length angle steel, the hole-free or hole-less part is designed as a fixed-length steel plate, the steel plate and the angle steel are connected by adopting short steel bar spot welding, the design is convenient to install and reinforce, the die stripping time can be greatly shortened after the concrete pouring is finished, and meanwhile, the tool is repeatedly used for a plurality of times, and the damage to the concrete at the end of the beam body is less.
Drawings
Fig. 1 is a schematic diagram of beam-end template unit division.
Fig. 2 is a schematic diagram of grooving of fixed-length angle steel.
Fig. 3 is a schematic view of the angle steel formwork installation.
Fig. 4 is a schematic diagram of an end form assembly installation.
In the figure: 1-a beam end template; 2-template units; 3-fixed-length angle steel; 4-slotting the holes of the reinforcing steel bars; 5-sizing steel plates; 6, longitudinal steel bars; 7-short steel bars.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples. The utility model provides a frock that end template was installed and demolishd is hung to continuous rigid frame of large-span, includes the whole beam-end template 1 that comprises a plurality of template units 2, template unit 2 divides according to the reinforcing bar reservation hole position as the boundary. The template unit 2 comprises a fixed-length steel plate 5 and fixed-length angle steel 3; the steel bar hole slotting 4 is arranged on the fixed-length angle steel 3; the part without holes or with few holes is a fixed-length steel plate 5. Wherein, fixed length steel sheet 5 and fixed length angle steel 3 pass through short reinforcing bar 7 fixed connection.
Working principle: the device fully utilizes the principle that the whole end template is formed by the template units. The fixed-length angle steel with the length of 5cm multiplied by 5cm is grooved according to the design space of the steel bars, and is not only a fixture for positioning the steel bars, but also a reference device for assembling the templates. The steel plate and the angle steel are welded by adopting short steel bars, so that the installation and disassembly speed is accelerated. The steel plate is cut by using steel cutting equipment after the template is removed by utilizing the characteristics that the steel plate is not grooved and the size change of the steel bar of the beam body is not large, and the requirements of thickness and height of the web plate, the top plate and the bottom plate of the beam body can be rapidly met.
The specific construction method comprises the following steps:
step 1: the fixed-length steel plate 5 and the fixed-length angle steel 3 are cut according to the size of the formwork unit 2 divided by the integral beam end formwork 1. The beam-end template unit division is shown in fig. 1.
Step 2: the fixed-length angle steel 3 is provided with a steel bar hole slot 4, and a fixed-length steel plate 5 reserved with a few steel bar holes is provided with holes to be used as a fixture for steel bar positioning. The fixed-length angle steel is slotted as shown in figure 2.
Step 3: mounting fixed-length angle steel 3 to the designed beam end line position, and connecting with the bottom die and the side die in a spot welding manner; as shown in fig. 3.
Step 4: a fixed-length steel plate 5 is installed, the fixed-length angle steel 3 and the fixed-length steel plate 5 are fixed by using a short steel bar 7, and a longitudinal steel bar 6 is penetrated; as shown in fig. 4.
The fixed-length angle steel installed in advance provides a reference position for the assembly of the fixed-length steel plate, so that the assembly of the fixed-length steel plate is more convenient and accurate. The fixed length steel plate and the fixed length angle steel are welded by the short steel bars 7, so that the installation and disassembly speeds are increased.
Step 5: adopting reinforcing measures to the beam end template 1, and pouring concrete;
step 6: and during the dismantling, the short steel bars 7 connected with each part of the beam end template 1 are dismantled, and each template unit 2 is independently dismantled. The demolding time can be greatly shortened, and meanwhile, the tool is repeatedly used for a plurality of times, so that the concrete at the end of the beam body is less damaged.
Claims (1)
1. The utility model provides a method for carrying out large-span continuous rigid frame cantilever irrigation end template positioning installation and demolition, which adopts a fixture comprising an integral beam end template (1) composed of a plurality of template units (2), wherein the template units (2) are divided according to the reserved hole positions of reinforcing steel bars as boundaries, and the fixture comprises a fixed-length steel plate (5) and fixed-length angle steel (3); the steel bar hole slotting (4) is arranged on the fixed-length angle steel (3); the part without holes or with few holes in the inner part is a fixed-length steel plate (5), and the fixed-length steel plate (5) and the fixed-length angle steel (3) are fixedly connected through a short steel bar (7); the method is characterized by comprising the following steps of:
step 1: cutting a fixed-length steel plate (5) and fixed-length angle steel (3) according to the size of a template unit (2) divided by an integral beam end template (1);
step 2: a steel bar hole slotting (4) is formed on the fixed-length angle steel (3), and a fixed-length steel plate (5) reserved with a few steel bar holes is drilled;
step 3: mounting fixed-length angle steel (3) to the designed beam end line position, and connecting the fixed-length angle steel with the bottom die and the side die in a spot welding manner;
step 4: a fixed-length steel plate (5) is installed, the fixed-length angle steel (3) is fixed with the fixed-length steel plate (5) by utilizing a short steel bar (7), and a longitudinal steel bar (6) is penetrated;
step 5: adopting reinforcing measures to the beam end template (1) and pouring concrete;
step 6: and when the beam end template is detached, the short steel bars (7) connected with each part of the beam end template (1) are detached, and each template unit (2) is independently detached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810931872.8A CN108755448B (en) | 2018-08-16 | 2018-08-16 | Tool and method for positioning, installing and dismantling large-span continuous rigid frame suspension irrigation end template |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810931872.8A CN108755448B (en) | 2018-08-16 | 2018-08-16 | Tool and method for positioning, installing and dismantling large-span continuous rigid frame suspension irrigation end template |
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| Publication Number | Publication Date |
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| CN108755448A CN108755448A (en) | 2018-11-06 |
| CN108755448B true CN108755448B (en) | 2023-06-23 |
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| CN201810931872.8A Active CN108755448B (en) | 2018-08-16 | 2018-08-16 | Tool and method for positioning, installing and dismantling large-span continuous rigid frame suspension irrigation end template |
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| CN114541240B (en) * | 2022-02-14 | 2024-06-04 | 中铁十一局集团第一工程有限公司 | Reinforcing construction method and device for large-section high-web end template of cantilever beam |
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| FR1039305A (en) * | 1950-07-06 | 1953-10-06 | Dyckerhoff & Widmann Ag | Long span reinforced concrete bridge construction process |
| CN100572011C (en) * | 2007-08-31 | 2009-12-23 | 中铁二局股份有限公司 | Post-tensioned method prestressed concrete box beam whole opening prefabricated construction method |
| CN102677593A (en) * | 2012-05-29 | 2012-09-19 | 中铁上海工程局有限公司 | End mould fixing structure using beam section longitudinal embedded bars and fixing method |
| CN103194982B (en) * | 2013-03-25 | 2015-02-25 | 中交路桥建设有限公司 | Construction method for short cantilever support at bridge side span cast-in-situ segment |
| CN207073072U (en) * | 2017-08-24 | 2018-03-06 | 中铁三局集团有限公司 | Cast-in-situ Beam regular reinforcement and reserved steel bar accurate positioning device |
| CN107574762A (en) * | 2017-08-24 | 2018-01-12 | 中铁三局集团有限公司 | A kind of construction method for strengthening Cast-in-situ Beam 0# block construction qualities |
| CN207210965U (en) * | 2017-08-30 | 2018-04-10 | 中铁建大桥工程局集团第三工程有限公司 | A kind of continuous beam pin-connected panel end head formwork |
| CN208748540U (en) * | 2018-08-16 | 2019-04-16 | 中铁四局集团有限公司 | The outstanding tooling for filling Side Template location and installation and dismounting of Long Span Continuous Rigid-Frame Structure |
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