CN111074768A - Template-free rapid construction bridge anti-collision guardrail - Google Patents
Template-free rapid construction bridge anti-collision guardrail Download PDFInfo
- Publication number
- CN111074768A CN111074768A CN202010034345.4A CN202010034345A CN111074768A CN 111074768 A CN111074768 A CN 111074768A CN 202010034345 A CN202010034345 A CN 202010034345A CN 111074768 A CN111074768 A CN 111074768A
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- panel
- guardrail
- outer panel
- steel bars
- template
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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
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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
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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 template-free rapid construction bridge anti-collision guardrail; the method is characterized in that: the anti-collision guardrail comprises an outer panel and an inner panel, wherein anchoring steel bars are embedded in the inner side of the inner panel, so that the outer panel and the inner panel are fixed through pull rods, and concrete is poured in inner cavities of the outer panel and the inner panel. The inner walls of the outer panel and the inner panel are provided with transverse grooves at certain intervals to increase the bonding between the inner panel and the outer panel and the post-cast concrete. The invention solves the problems of low factory degree, long construction period, poor appearance quality and the like of the traditional guardrail.
Description
Technical Field
The invention relates to the field of bridge anti-collision guardrail construction, in particular to a template-free rapid construction bridge anti-collision guardrail taking ultra-high performance concrete (UHPC) as a panel.
Background
The traditional bridge reinforced concrete anti-collision guardrail mainly adopts pre-embedded steel bars at the edge of a beam body, after an upper bridge deck is integrally formed, the guardrail steel bars are bound, a template is erected, and concrete is cast in situ.
Traditional reinforced concrete crash barrier batch production degree is low, adopts cast in situ's mode shaping, and the template often need have enough to meet the need the use, and construction cycle is longer. As a later auxiliary structure, construction can be carried out after the main structure is finished, so that the construction period is short, the construction environment has more uncontrollable factors, the appearance quality is difficult to guarantee, and a series of problems of honeycomb pitted surface, color difference, easiness in cracking and the like exist on the outer surface of the guardrail.
The invention adopts a new structural form, and well solves a series of problems of the traditional reinforced concrete guardrail on the premise of not changing the appearance of the guardrail and ensuring the anti-collision grade.
Disclosure of Invention
Therefore, in order to solve the above disadvantages, the present invention provides a template-free rapid construction bridge crash barrier using Ultra High Performance Concrete (UHPC) as a face plate; the problems of low factory degree, long construction period, poor appearance quality and the like of the traditional guardrail are solved.
The invention is realized in such a way that a template-free and rapid construction bridge anti-collision guardrail is constructed, which is characterized in that: the anti-collision guardrail comprises an outer panel and an inner panel, wherein anchoring steel bars are embedded in the inner side of the inner panel, so that the outer panel and the inner panel are fixed through pull rods, and concrete is poured in inner cavities of the outer panel and the inner panel.
The invention discloses a template-free rapid construction bridge anti-collision guardrail, which is characterized in that: the inner walls of the outer panel and the inner panel are provided with transverse grooves at certain intervals to increase the bonding between the inner panel and the outer panel and the post-cast concrete.
The invention discloses a template-free rapid construction bridge anti-collision guardrail, which is characterized in that: positioning steel bars are arranged in the outer panel; the bottom of the outer panel forms a drip edge.
The invention discloses a template-free rapid construction bridge anti-collision guardrail, which is characterized in that: the outer panel, the panel thickness of interior panel is 2 ~ 4cm, and the material is Ultra High Performance Concrete (UHPC).
The invention discloses a template-free rapid construction bridge anti-collision guardrail, which is characterized in that: the installation and construction process is as follows: after the guardrail steel bars are bound on site, the panel is conveyed to the site for installation; the outer panel is positioned through positioning steel bars pre-embedded in the panel, and the connection between the inner panel and the outer panel is stable through anchoring steel bars and pull rods pre-embedded in the inner panel; after the panels are installed, pouring concrete between the panels and vibrating the concrete to finish the construction of the anti-collision guardrail;
the method specifically comprises the following steps:
(1) when a main bridge structure is constructed, UHPC inner and outer panels are prefabricated in a factory;
(2) binding guardrail steel bars after the main body structure meets the bearing requirement, and simultaneously conveying the inner and outer panels to a bridge location area;
(3) hoisting and installing the inner panel and the outer panel, and fixing the inner panel and the outer panel to the main body steel bars of the guardrail through the positioning steel bars and the tie bars;
(4) pouring concrete between the inner panel and the outer panel, and vibrating to finish the construction of the guardrail;
(5) for the precast beam, binding of guardrail steel bars and installation of inner and outer panels can be completed on the boundary beam, and then the boundary beam is integrally hoisted; and (4) finishing the construction of the guardrail.
The invention has the following advantages:
(1) adopt fashioned UHPC prefabricated panel of mill as the skin of anticollision barrier, improved the batch production degree of this structure, ensured appearance quality, when guaranteeing that the structure is pleasing to the eye, solved traditional anticollision barrier and easily cracked, have a series of problems such as honeycomb pitted skin and colour difference.
(2) The UHPC prefabricated panel can be used as a template in the construction process of the anti-collision guardrail, compared with the traditional anti-collision guardrail, the on-site template-free construction is realized, a series of links such as the manufacturing, transportation, installation and dismantling of the template are omitted, the construction speed is increased, and the rapid construction is realized.
(3) The lower end of the outer panel is provided with a water dripping edge which wraps the flange plate to protect the beam body, so that the durability of the main body structure is improved.
(4) For the precast beam structure, the inner and outer panels and the boundary beam can be considered to be installed together, and the precast beam structure is integrally hoisted, so that the construction speed can be further accelerated, and the construction quality can be guaranteed.
Drawings
FIG. 1 is a schematic view of the inner and outer panels of the guardrail of the present invention;
FIG. 2 is a schematic view showing the arrangement of grooves on the inner walls of the inner and outer panels according to the present invention;
figure 3 is a simplified view of the installation of the guard rail of the present invention (only a portion of the reinforcement is shown, the inner wall groove not shown).
In the figure, panel 1 outside, interior panel 2, panel inner wall recess 3, pull rod 4, spacer bar 5, pre-buried anchor reinforcing bar 6, edge 7 drips.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 3, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The invention provides a template-free rapid construction bridge anti-collision guardrail taking ultra-high performance concrete (UHPC) as a panel by improvement, which is shown in figures 1-3 and can be implemented as follows; this anticollision barrier includes outer panel 1 and interior panel 2, and the pre-buried anchor reinforcing bar 6 of the inboard of interior panel 2 makes its outer panel 1 and interior panel 2 fixed through pull rod 4, pours the concrete in the inner chamber of outer panel 1 and interior panel 2.
In addition, the inner walls of the outer panel 1 and the inner panel 2 are provided with transverse grooves 3 at certain intervals to increase the bonding between the inner and outer panels and the post-cast concrete.
In addition, when the method is implemented, the positioning steel bars 5 are arranged in the outer panel 1; the bottom of the outer panel 1 forms a drip edge 7.
The thickness of the outer panel 1 and the inner panel 2 is 2-4 cm, and the material is ultra-high performance concrete (UHPC).
The installation and construction process of the template-free rapid construction bridge anti-collision guardrail taking ultra-high performance concrete (UHPC) as the panel comprises the following steps: after the guardrail steel bars are bound on site, the panel is conveyed to the site for installation; the outer panel is positioned through positioning steel bars pre-embedded in the panel, and the connection between the inner panel and the outer panel is stable through anchoring steel bars and pull rods pre-embedded in the inner panel; after the panels are installed, pouring concrete between the panels and vibrating the concrete to finish the construction of the anti-collision guardrail;
the method specifically comprises the following steps:
(1) when a main bridge structure is constructed, UHPC inner and outer panels are prefabricated in a factory;
(2) binding guardrail steel bars after the main body structure meets the bearing requirement, and simultaneously conveying the inner and outer panels to a bridge location area;
(3) hoisting and installing the inner panel and the outer panel, and fixing the inner panel and the outer panel to the main body steel bars of the guardrail through the positioning steel bars and the tie bars;
(4) pouring concrete between the inner panel and the outer panel, and vibrating to finish the construction of the guardrail;
(5) for the precast beam, binding of guardrail steel bars and installation of inner and outer panels can be completed on the boundary beam, and then the boundary beam is integrally hoisted; and (4) finishing the construction of the guardrail.
In conclusion, the invention provides a novel reinforced concrete anti-collision guardrail form on the premise of ensuring the anti-collision grade without changing the appearance of the guardrail, and solves the problems of low factory degree, long construction period, poor appearance quality and the like of the traditional guardrail.
According to the invention, the inner and outer panels (figure 1) of the guardrail are prefabricated in a factory, the thickness of the panels is 2-4 cm, the materials are Ultra High Performance Concrete (UHPC), no steel bars are arranged in the panels, and transverse small grooves (figure 2) are arranged on the inner wall at intervals for increasing the bonding between the inner and outer panels and post-cast concrete. And after the guardrail steel bars are bound on site, conveying the panel to the site for installation. The outer panel realizes the location through the positioning steel bar of pre-buried in the panel to the connection of outer panel and inner panel is firm (fig. 3) through anchor reinforcing bar and the pull rod of pre-buried in the inner panel realization. And after the panels are installed, pouring concrete between the panels and vibrating to finish the construction of the anti-collision guardrail.
The invention has the beneficial effects that:
(1) adopt fashioned UHPC prefabricated panel of mill as the skin of anticollision barrier, improved the batch production degree of this structure, ensured appearance quality, when guaranteeing that the structure is pleasing to the eye, solved traditional anticollision barrier and easily cracked, have a series of problems such as honeycomb pitted skin and colour difference.
(2) The UHPC prefabricated panel can be used as a template in the construction process of the anti-collision guardrail, compared with the traditional anti-collision guardrail, the on-site template-free construction is realized, a series of links such as the manufacturing, transportation, installation and dismantling of the template are omitted, the construction speed is increased, and the rapid construction is realized.
(3) The lower end of the outer panel is provided with a water dripping edge which wraps the flange plate to protect the beam body, so that the durability of the main body structure is improved.
(4) For the precast beam structure, the inner and outer panels and the boundary beam can be considered to be installed together, and the precast beam structure is integrally hoisted, so that the construction speed can be further accelerated, and the construction quality can be guaranteed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a no template, rapid construction bridge anticollision barrier which characterized in that: the anti-collision guardrail comprises an outer panel (1) and an inner panel (2), wherein anchoring steel bars (6) are embedded in the inner side of the inner panel (2) in a pre-buried mode, so that the outer panel (1) and the inner panel (2) are fixed through a pull rod (4), and concrete is poured in inner cavities of the outer panel (1) and the inner panel (2).
2. The template-free rapid construction bridge anti-collision guardrail of claim 1, which is characterized in that: the inner walls of the outer panel (1) and the inner panel (2) are provided with transverse grooves (3) at certain intervals to increase the bonding between the inner panel and the outer panel and the post-cast concrete.
3. The template-free rapid construction bridge anti-collision guardrail according to claim 1 or 2, characterized in that: positioning steel bars (5) are arranged in the outer panel (1); the bottom of the outer panel (1) forms a drip edge (7).
4. The template-free rapid construction bridge anti-collision guardrail according to claim 1 or 2, characterized in that: the panel thickness of the outer panel (1) and the inner panel (2) is 2-4 cm, and the material is Ultra High Performance Concrete (UHPC).
5. The template-free rapid construction bridge anti-collision guardrail of claim 1, which is characterized in that: the installation and construction process is as follows: after the guardrail steel bars are bound on site, the panel is conveyed to the site for installation; the outer panel is positioned through positioning steel bars pre-embedded in the panel, and the connection between the inner panel and the outer panel is stable through anchoring steel bars and pull rods pre-embedded in the inner panel; after the panels are installed, pouring concrete between the panels and vibrating the concrete to finish the construction of the anti-collision guardrail;
the method specifically comprises the following steps:
(1) when a main bridge structure is constructed, UHPC inner and outer panels are prefabricated in a factory;
(2) binding guardrail steel bars after the main body structure meets the bearing requirement, and simultaneously conveying the inner and outer panels to a bridge location area;
(3) hoisting and installing the inner panel and the outer panel, and fixing the inner panel and the outer panel to the main body steel bars of the guardrail through the positioning steel bars and the tie bars;
(4) pouring concrete between the inner panel and the outer panel, and vibrating to finish the construction of the guardrail;
(5) for the precast beam, binding of guardrail steel bars and installation of inner and outer panels can be completed on the boundary beam, and then the boundary beam is integrally hoisted; and (4) finishing the construction of the guardrail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010034345.4A CN111074768A (en) | 2020-01-14 | 2020-01-14 | Template-free rapid construction bridge anti-collision guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010034345.4A CN111074768A (en) | 2020-01-14 | 2020-01-14 | Template-free rapid construction bridge anti-collision guardrail |
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| Publication Number | Publication Date |
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| CN111074768A true CN111074768A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010034345.4A Pending CN111074768A (en) | 2020-01-14 | 2020-01-14 | Template-free rapid construction bridge anti-collision guardrail |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593660A (en) * | 2020-05-28 | 2020-08-28 | 宁波市交通规划设计研究院有限公司 | Device for improving anti-collision capacity of existing guardrail and construction method thereof |
| CN111827112A (en) * | 2020-09-08 | 2020-10-27 | 重庆长赛新材料科技有限公司 | Construction method of concrete railing upright post in middle of bridge road |
| CN111877229A (en) * | 2020-08-06 | 2020-11-03 | 湖南大学 | Functionally-gradient anti-collision guardrail and construction method thereof |
| CN113152339A (en) * | 2021-04-28 | 2021-07-23 | 北京华路安交通科技有限公司 | Concrete guardrail attached type fixed die pouring construction method |
| CN113957787A (en) * | 2021-12-06 | 2022-01-21 | 中交公路长大桥建设国家工程研究中心有限公司 | Semi-assembly type concrete guardrail and mounting method thereof |
| CN114635355A (en) * | 2022-03-28 | 2022-06-17 | 东南大学 | Bridge guardrail with prefabricated UHPC (ultra high performance polycarbonate) formwork filled with concrete and construction method thereof |
| WO2022166164A1 (en) * | 2021-02-05 | 2022-08-11 | 上海核工程研究设计院有限公司 | Cast-in-place ultra-high performance concrete (uhpc) composite shielding shell |
| WO2022166163A1 (en) * | 2021-02-05 | 2022-08-11 | 上海核工程研究设计院有限公司 | Semi-fabricated ultra-high performance concrete (uhpc) combined shielding housing |
| CN115075170A (en) * | 2022-07-15 | 2022-09-20 | 正升环境科技股份有限公司 | Sound absorption anti-collision guardrail |
| CN115478476A (en) * | 2021-05-31 | 2022-12-16 | 上海浦东建筑设计研究院有限公司 | Steel shell anti-collision guardrail and bridge deck integrated combined bridge deck system structure and construction method |
| CN115652781A (en) * | 2022-12-26 | 2023-01-31 | 北京新桥技术发展有限公司 | Bridge anti-collision guardrail, bridge anti-collision panel and construction method |
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2020
- 2020-01-14 CN CN202010034345.4A patent/CN111074768A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593660A (en) * | 2020-05-28 | 2020-08-28 | 宁波市交通规划设计研究院有限公司 | Device for improving anti-collision capacity of existing guardrail and construction method thereof |
| CN111593660B (en) * | 2020-05-28 | 2022-03-22 | 宁波市交通规划设计研究院有限公司 | Device for improving anti-collision capacity of existing guardrail and construction method thereof |
| CN111877229A (en) * | 2020-08-06 | 2020-11-03 | 湖南大学 | Functionally-gradient anti-collision guardrail and construction method thereof |
| CN114232475A (en) * | 2020-09-08 | 2022-03-25 | 重庆长赛新材料科技有限公司 | Concrete railing post in middle of bridge road |
| CN111827112A (en) * | 2020-09-08 | 2020-10-27 | 重庆长赛新材料科技有限公司 | Construction method of concrete railing upright post in middle of bridge road |
| CN114232475B (en) * | 2020-09-08 | 2024-03-01 | 重庆长赛新材料科技有限公司 | Bridge road middle concrete railing post |
| WO2022166163A1 (en) * | 2021-02-05 | 2022-08-11 | 上海核工程研究设计院有限公司 | Semi-fabricated ultra-high performance concrete (uhpc) combined shielding housing |
| WO2022166164A1 (en) * | 2021-02-05 | 2022-08-11 | 上海核工程研究设计院有限公司 | Cast-in-place ultra-high performance concrete (uhpc) composite shielding shell |
| CN113152339A (en) * | 2021-04-28 | 2021-07-23 | 北京华路安交通科技有限公司 | Concrete guardrail attached type fixed die pouring construction method |
| CN115478476A (en) * | 2021-05-31 | 2022-12-16 | 上海浦东建筑设计研究院有限公司 | Steel shell anti-collision guardrail and bridge deck integrated combined bridge deck system structure and construction method |
| CN113957787A (en) * | 2021-12-06 | 2022-01-21 | 中交公路长大桥建设国家工程研究中心有限公司 | Semi-assembly type concrete guardrail and mounting method thereof |
| CN114635355A (en) * | 2022-03-28 | 2022-06-17 | 东南大学 | Bridge guardrail with prefabricated UHPC (ultra high performance polycarbonate) formwork filled with concrete and construction method thereof |
| CN115075170A (en) * | 2022-07-15 | 2022-09-20 | 正升环境科技股份有限公司 | Sound absorption anti-collision guardrail |
| CN115075170B (en) * | 2022-07-15 | 2024-05-17 | 正升环境科技股份有限公司 | Sound absorption anti-collision guardrail |
| CN115652781A (en) * | 2022-12-26 | 2023-01-31 | 北京新桥技术发展有限公司 | Bridge anti-collision guardrail, bridge anti-collision panel and construction method |
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