CN114045748A - Movable formwork installation construction method for bridge guardrail - Google Patents
Movable formwork installation construction method for bridge guardrail Download PDFInfo
- Publication number
- CN114045748A CN114045748A CN202111340303.4A CN202111340303A CN114045748A CN 114045748 A CN114045748 A CN 114045748A CN 202111340303 A CN202111340303 A CN 202111340303A CN 114045748 A CN114045748 A CN 114045748A
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- Prior art keywords
- template
- guardrail
- bridge
- connecting piece
- formwork
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- 238000009415 formwork Methods 0.000 title claims abstract description 35
- 238000009434 installation Methods 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 title abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a movable formwork installation construction method for a bridge guardrail, and relates to the technical field of bridge construction. The movable formwork installation and construction method for the bridge guardrail specifically comprises the following operations: s1, customizing an outer template according to the size of the guardrail, arranging a connecting piece on each of the left and right sides of the outer template, arranging a cylinder in the middle of each connecting piece, arranging a tie rod on each connecting piece, fixedly penetrating one side of the tie rod on each connecting piece, arranging a convex groove at the lower end of the outer template, and installing a magnet pendant at the lower opening of the outer template before S2 and hoisting. The movable template installation construction method of the bridge guardrail mainly comprises the steps that a U-shaped magnet pendant is arranged at the lower end of a template on the outer side of the guardrail, and the weight is obtained through calculation; the upper side of the template adopts a traction rod inserted into the inner template to realize the assembly of the template, the inner template is supported on the surface of the bridge through an inclined rod, and the inner side of the template and a protective layer cushion block of the steel bar play a role in protection.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a movable formwork installation construction method for a bridge guardrail.
Background
The guardrail of bridge plays anticollision and hindrance in the bridge function, effectively prevents the emergence of incident, plays pleasing to the eye effect simultaneously. The common bridge is designed with different guardrail structures according to the structural form, the section size and the functional use of the bridge.
Bridge guardrails are generally divided into more rail type and concrete type. On the main bridge, most adopt the guardrail of concrete structure, main function is for protecting to hit the safety function as the main, assists pleasing to the eye.
In the construction of guardrails of concrete structures, steel moulds are mostly adopted as main templates, steel templates on the inner side and the outer side are usually adopted, the templates are fastened through fastening of pull bolts, but in the installation process of the templates, the installation of the outer templates is empty, the safety is difficult to control, and the safety factor of installers is low; in recent years, a guardrail template trolley is adopted for installing templates and pouring concrete, the equipment is generally in a trolley type, the lease cost is not economical, and the economic effect is not good for small bridges and projects with short guardrails; and an inner template and an outer template are adopted for connecting and supporting, and an inner steel strand and an outer steel strand are adopted for anchoring at the upper part or the lower part on an embedded steel bar hook of the bridge floor, so that the method is complex in installation and multiple in operation procedures.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a movable template installation construction method for a bridge guardrail, which solves the problems that in the guardrail construction of a concrete structure, a steel mould is mostly adopted as a main template, steel templates on the inner side and the outer side are usually adopted, the templates are fastened through fastening of pull bolts, but in the installation process of the templates, the installation of the outer template is empty, the safety is difficult to control, and the safety coefficient of an installer is low; in recent years, a guardrail template trolley is adopted for installing templates and pouring concrete, the equipment is generally in a trolley type, the lease cost is not economical, and the economic effect is not good for small bridges and projects with short guardrails; the method also adopts an inner template and an outer template to carry out connection supporting, adopts an inner steel strand and an outer steel strand to carry out anchoring on the upper part or the lower part of the embedded steel bar hook of the bridge floor, and has the problems of complex installation and more operation procedures.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a movable formwork installation construction method for a bridge guardrail specifically comprises the following operations:
s1, customizing an outer template according to the size of the guardrail, wherein the left and right sides of each outer template are respectively provided with a connecting piece, the middle of each connecting piece is provided with a cylinder, the connecting piece is provided with a tie rod, one side of the tie rod is fixedly penetrated on the connecting piece, and the lower end of the outer template is provided with a convex groove;
s2, before hoisting, mounting the magnet drop at the lower opening of the outer template;
s3, standing the inner template on the inner side of the guardrail steel bars which are laid out in advance, and assisting the inclined struts on the inner template to install the inner template in place;
s4, bridging the tie rods connected with the connectors on the outer template to the connectors on the inner template, and then firmly penetrating by using penetrating rods to finish the installation operation, wherein the weight and the magnetic force of the magnets are set according to the size of the guardrail and the distance between the steel bars so as to ensure that the outer template and the outer concrete of the bridge are tightly clamped together;
s5, pouring concrete;
s6, after concrete pouring is completed, when the maintenance reaches the specified strength and the formwork can be disassembled, taking out the penetrating rods of the inner formwork, slightly prying the inner formwork, prying the outer formwork outwards by using the cross rods, and installing the cross rods again after the formworks on the two sides are loosened;
and S7, pulling the template to the non-poured concrete direction by using a pulling hook, and realizing the subsequent installation of the bridge guardrail template.
(III) advantageous effects
The invention provides a movable formwork installation construction method for a bridge guardrail. The method has the following beneficial effects:
the movable template installation construction method of the bridge guardrail mainly comprises the steps that a U-shaped magnet pendant is arranged at the lower end of a template on the outer side of the guardrail, and the weight is obtained through calculation; and the upper side of the template adopts a traction rod inserted into the inner template to realize the assembly of the template. The inner formwork is supported on the surface of the bridge through the inclined rods, the inner side of the formwork and the protective layer cushion block of the steel bar play a role in protection; meanwhile, the end of the template can be plugged by adopting a sealing baffle plate. When the template is adopted, the template adopts an outer template with a magnet, the outer template and the internal steel bar adopt magnetic force, the magnet has certain weight, the outer template can realize functions without additional reinforcement, meanwhile, the upper part of the template adopts a cross-under type fixing mode, the installation is convenient and reliable, and the installation can be realized by adopting a small crane in the initial stage if the template is idle; simultaneously after using, can realize loosening the mould through opening and shutting of horizontal pull rod, the removal that the manual work adopted to drag the hook and can implement the template about, does not need to install in addition and lifts by crane.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: the steel plate comprises an outer formwork 1, an inner formwork 2, a magnet weight 3, guardrail steel bars 4, connecting pieces on the outer formwork 5, penetrating rods 6, tie rods 7, connecting pieces on the inner formwork 8, inclined struts on the inner formwork 9 and a bridge deck 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a movable formwork installation construction method for a bridge guardrail specifically comprises the following operations:
s1, customizing an outer template according to the size of the guardrail, wherein the left and right sides of each outer template are respectively provided with a connecting piece, the middle of each connecting piece is provided with a cylinder, the connecting piece is provided with a tie rod, one side of the tie rod is fixedly penetrated on the connecting piece, and the lower end of the outer template is provided with a convex groove;
s2, before hoisting, mounting the magnet drop at the lower opening of the outer template;
s3, standing the inner template on the inner side of the guardrail steel bars which are laid out in advance, and assisting the inclined struts on the inner template to install the inner template in place;
s4, bridging the tie rods connected with the connectors on the outer template to the connectors on the inner template, and then firmly penetrating by using penetrating rods to finish the installation operation, wherein the weight and the magnetic force of the magnets are set according to the size of the guardrail and the distance between the steel bars so as to ensure that the outer template and the outer concrete of the bridge are tightly clamped together;
s5, pouring concrete;
s6, after concrete pouring is completed, when the maintenance reaches the specified strength and the formwork can be disassembled, taking out the penetrating rods of the inner formwork, slightly prying the inner formwork, prying the outer formwork outwards by using the cross rods, and installing the cross rods again after the formworks on the two sides are loosened;
and S7, pulling the template to the non-poured concrete direction by using a pulling hook, and realizing the subsequent installation of the bridge guardrail template.
In summary, the movable formwork installation construction method for the bridge guardrail is mainly characterized in that a U-shaped magnet pendant is arranged at the lower end of the outer side formwork of the guardrail, and the weight is obtained through calculation; and the upper side of the template adopts a traction rod inserted into the inner template to realize the assembly of the template. The inner formwork is supported on the surface of the bridge through the inclined rods, the inner side of the formwork and the protective layer cushion block of the steel bar play a role in protection; meanwhile, the end of the template can be plugged by adopting a sealing baffle plate. When the template is adopted, the template adopts an outer template with a magnet, the outer template and the internal steel bar adopt magnetic force, the magnet has certain weight, the outer template can realize functions without additional reinforcement, meanwhile, the upper part of the template adopts a cross-under type fixing mode, the installation is convenient and reliable, and the installation can be realized by adopting a small crane in the initial stage if the template is idle; simultaneously after using, can realize loosening the mould through opening and shutting of horizontal pull rod, the removal that the manual work adopted to drag the hook and can implement the template about, does not need to install in addition and lifts by crane.
By adopting the installation construction method of the template, the installation of the bridge guardrail template is safe and economic, the labor is saved, the falling caused by unsafe factors when the outer side template is installed is avoided, and the like. The adoption of the method on a plurality of projects proves that the method is reliable and economical in practicability and worthy of reference of other units.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The movable formwork installing and constructing method for the bridge guardrail is characterized by comprising the following steps of: the specific operation is as follows:
s1, customizing an outer template according to the size of the guardrail, wherein the left and right sides of each outer template are respectively provided with a connecting piece, the middle of each connecting piece is provided with a cylinder, the connecting piece is provided with a tie rod, one side of the tie rod is fixedly penetrated on the connecting piece, and the lower end of the outer template is provided with a convex groove;
s2, before hoisting, mounting the magnet drop at the lower opening of the outer template;
s3, standing the inner template on the inner side of the guardrail steel bars which are laid out in advance, and assisting the inclined struts on the inner template to install the inner template in place;
s4, bridging the tie rods connected with the connectors on the outer template to the connectors on the inner template, and then firmly penetrating by using penetrating rods to finish the installation operation, wherein the weight and the magnetic force of the magnets are set according to the size of the guardrail and the distance between the steel bars so as to ensure that the outer template and the outer concrete of the bridge are tightly clamped together;
s5, pouring concrete;
s6, after concrete pouring is completed, when the maintenance reaches the specified strength and the formwork can be disassembled, taking out the penetrating rods of the inner formwork, slightly prying the inner formwork, prying the outer formwork outwards by using the cross rods, and installing the cross rods again after the formworks on the two sides are loosened;
and S7, pulling the template to the non-poured concrete direction by using a pulling hook, and realizing the subsequent installation of the bridge guardrail template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111340303.4A CN114045748A (en) | 2021-11-12 | 2021-11-12 | Movable formwork installation construction method for bridge guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111340303.4A CN114045748A (en) | 2021-11-12 | 2021-11-12 | Movable formwork installation construction method for bridge guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114045748A true CN114045748A (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111340303.4A Pending CN114045748A (en) | 2021-11-12 | 2021-11-12 | Movable formwork installation construction method for bridge guardrail |
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| Country | Link |
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| CN (1) | CN114045748A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05280012A (en) * | 1992-03-31 | 1993-10-26 | Hazama Gumi Ltd | Movable formwork process and device used therefor |
| CN102182150A (en) * | 2011-04-20 | 2011-09-14 | 中国十七冶集团有限公司 | Installation method of externally hung steel template for anti-collision guardrail construction outside viaduct |
| CN202849933U (en) * | 2012-08-20 | 2013-04-03 | 中建七局第一建筑有限公司 | Anti-collision guardrail |
| CN204491424U (en) * | 2015-04-01 | 2015-07-22 | 王欣荣 | Novel road bridge concrete guardrail construction formwork |
| CN107013037A (en) * | 2017-03-14 | 2017-08-04 | 中国十七冶集团有限公司 | It is a kind of to be used for the buried concrete wall construction method without through-wall bolt |
| CN109914239A (en) * | 2019-03-27 | 2019-06-21 | 中国一冶集团有限公司 | Bridge cast-in-place concrete anticollision barrier constructing device and its method |
| CN109944443A (en) * | 2019-03-29 | 2019-06-28 | 西京学院 | A kind of non-porous template is to pull system |
| CN209703298U (en) * | 2019-02-15 | 2019-11-29 | 重庆交通职业学院 | The template system of concrete anti-collision guard bar for bridge |
-
2021
- 2021-11-12 CN CN202111340303.4A patent/CN114045748A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05280012A (en) * | 1992-03-31 | 1993-10-26 | Hazama Gumi Ltd | Movable formwork process and device used therefor |
| CN102182150A (en) * | 2011-04-20 | 2011-09-14 | 中国十七冶集团有限公司 | Installation method of externally hung steel template for anti-collision guardrail construction outside viaduct |
| CN202849933U (en) * | 2012-08-20 | 2013-04-03 | 中建七局第一建筑有限公司 | Anti-collision guardrail |
| CN204491424U (en) * | 2015-04-01 | 2015-07-22 | 王欣荣 | Novel road bridge concrete guardrail construction formwork |
| CN107013037A (en) * | 2017-03-14 | 2017-08-04 | 中国十七冶集团有限公司 | It is a kind of to be used for the buried concrete wall construction method without through-wall bolt |
| CN209703298U (en) * | 2019-02-15 | 2019-11-29 | 重庆交通职业学院 | The template system of concrete anti-collision guard bar for bridge |
| CN109914239A (en) * | 2019-03-27 | 2019-06-21 | 中国一冶集团有限公司 | Bridge cast-in-place concrete anticollision barrier constructing device and its method |
| CN109944443A (en) * | 2019-03-29 | 2019-06-28 | 西京学院 | A kind of non-porous template is to pull system |
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Application publication date: 20220215 |
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