CN108824189A - A kind of steel plate connection prefabricated assembling type reinforced concrete side crashproof guardrail - Google Patents
A kind of steel plate connection prefabricated assembling type reinforced concrete side crashproof guardrail Download PDFInfo
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- CN108824189A CN108824189A CN201810822711.5A CN201810822711A CN108824189A CN 108824189 A CN108824189 A CN 108824189A CN 201810822711 A CN201810822711 A CN 201810822711A CN 108824189 A CN108824189 A CN 108824189A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 128
- 239000010959 steel Substances 0.000 title claims abstract description 128
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 14
- 230000004888 barrier function Effects 0.000 claims abstract description 25
- 238000005452 bending Methods 0.000 claims abstract description 14
- 239000003292 glue Substances 0.000 claims description 13
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
本发明公开了一种钢板连接预制装配式钢筋混凝土侧边防撞护栏，包括预制防撞护栏和预制主梁，预制防撞护栏由混凝土预制构成并在内部预埋有纵向钢筋、抗弯钢筋、护栏连接钢筋及角钢，角钢位于预制防撞护栏底部迎撞端面，护栏连接钢筋、抗弯钢筋均与角钢焊接接连，预制主梁预埋具有预埋钢筋和预埋钢板，预埋钢板位于预制主梁顶面，预埋钢板与角钢焊接连接以将预制防撞护栏与预制主梁相连，通过将预制防撞护栏内部钢筋与角钢焊接，并将角钢与预埋在预制主梁的预制钢板焊接，可有效地将预制防撞护栏与预制主梁连接成整体，现场施工便捷，装配化程度高，适宜防撞护栏工业化生产、装配化施工，具有显著的技术经济效益。
The invention discloses a steel plate connection prefabricated assembled reinforced concrete side anti-collision guardrail, which comprises a prefabricated anti-collision guardrail and a prefabricated main beam. Guardrail connection reinforcement and angle steel, the angle steel is located at the bottom of the prefabricated anti-collision guardrail to meet the impact end face, the guardrail connection reinforcement and bending reinforcement are welded to the angle steel, the prefabricated main beam is pre-embedded with pre-embedded steel bars and pre-embedded steel plates, and the pre-embedded steel plates are located in the prefabricated main beam. On the top surface of the beam, the embedded steel plate and the angle steel are welded to connect the prefabricated anti-collision barrier to the prefabricated main beam. It can effectively connect the prefabricated anti-collision guardrail and the prefabricated main girder into a whole, the on-site construction is convenient, the degree of assembly is high, it is suitable for the industrial production and assembly construction of the anti-collision guardrail, and it has significant technical and economic benefits.
Description
技术领域technical field
本发明涉及桥梁施工结构技术领域，特别涉及一种钢板连接预制装配式钢筋混凝土侧边防撞护栏。The invention relates to the technical field of bridge construction structures, in particular to a steel plate connection prefabricated assembled reinforced concrete side anti-collision guardrail.
背景技术Background technique
近年来，快速化、装配化的绿色桥梁建造理念得到长足的发展，装配式桥梁下部结构、上部结构、附属设施发展迅速。防撞护栏是桥梁的重要组成部分，传统钢筋混凝土防撞护栏采用现场装模浇筑，需要花费大量人力物力进行钢筋运输、弯折与现场绑扎，增加了施工工期和成本，且现场浇筑造成污染较大，不符合国家发展绿色建筑的要求。In recent years, the rapid and prefabricated green bridge construction concept has been greatly developed, and the prefabricated bridge substructure, superstructure and auxiliary facilities have developed rapidly. The anti-collision barrier is an important part of the bridge. The traditional reinforced concrete anti-collision barrier is cast on site, which requires a lot of manpower and material resources for steel transportation, bending and on-site binding, which increases the construction period and cost, and the pollution caused by on-site pouring is relatively high. Large, does not meet the national requirements for the development of green buildings.
发明内容Contents of the invention
本发明所要解决的技术问题是提供一种结构简单、施工简便、绿色环保的钢板连接预制装配式钢筋混凝土侧边防撞护栏。The technical problem to be solved by the present invention is to provide a steel plate connection prefabricated assembled reinforced concrete side collision guardrail with simple structure, convenient construction and environmental protection.
为解决上述技术问题所采用的技术方案：一种钢板连接预制装配式钢筋混凝土侧边防撞护栏，包括预制防撞护栏和预制主梁，所述预制防撞护栏由混凝土预制构成并在内部预埋有纵向钢筋、抗弯钢筋、护栏连接钢筋及角钢，所述角钢位于预制防撞护栏底部迎撞端面，所述护栏连接钢筋与角钢焊接接连，所述预制主梁预埋具有预埋钢筋和预埋钢板，所述预埋钢板位于预制主梁顶面，所述预埋钢板与角钢焊接连接以将预制防撞护栏与预制主梁相连。The technical solution adopted to solve the above technical problems: a steel plate connected prefabricated reinforced concrete side crash guardrail, including a prefabricated crash guardrail and a prefabricated main beam, the prefabricated crash guardrail is composed of prefabricated concrete and prefabricated inside Embedded with longitudinal steel bars, bending steel bars, guardrail connecting steel bars and angle steel, the angle steel is located at the bottom of the prefabricated anti-collision guardrail to meet the impact end face, the guardrail connecting steel bars are welded and connected with the angle steel bars, and the prefabricated main girder is pre-embedded with pre-embedded steel bars and The pre-embedded steel plate is located on the top surface of the prefabricated main girder, and the pre-embedded steel plate is welded to the angle steel to connect the prefabricated anti-collision guardrail to the prefabricated main girder.
优选地，所述护栏连接钢筋和抗弯钢筋为同一钢筋弯，所述抗弯钢筋环绕一圈布置并在弯折处与角钢焊接接连接。Preferably, the guardrail connecting steel bars and the bending steel bars are bent from the same steel bar, and the bending steel bars are arranged in a circle and welded to the angle steel at the bend.
优选地，所述角钢设有坡口，所述角钢与预埋钢板之间采用坡口焊焊接。Preferably, the angle steel is provided with a groove, and the angle steel and the embedded steel plate are welded by groove welding.
优选地，所述预埋钢板与角钢之间设有连接钢板，所述连接钢板与预埋钢板、角钢之间通过角焊缝连接。Preferably, a connecting steel plate is provided between the embedded steel plate and the angle steel, and the connecting steel plate, the embedded steel plate and the angle steel are connected by fillet welds.
优选地，所述预制主梁端部向上延伸形成与预制防撞护栏配合定位的挡块，所述预制主梁与预制防撞护栏之间具有砂浆垫层，所述预埋钢板凸出预制主梁顶面预定高度。Preferably, the end of the prefabricated main girder extends upwards to form a stopper cooperating with the prefabricated anti-collision barrier, there is a mortar cushion between the prefabricated main beam and the prefabricated anti-collision barrier, and the pre-embedded steel plate protrudes from the prefabricated main beam. The predetermined height of the top surface of the beam.
优选地，所述预制防撞护栏底部设有剪力槽，所述预制主梁设有与剪力槽嵌固配合的剪力键，所述预制防撞护栏与预制主梁之间具有环氧树脂胶层，所述预制防撞护栏底部沿纵向间隔设有出胶槽，所述预制防撞护栏底部外壁具有假缝。Preferably, the bottom of the prefabricated anti-collision guardrail is provided with a shear groove, and the prefabricated main beam is provided with a shear key that fits firmly with the shear groove. Resin glue layer, the bottom of the prefabricated anti-collision guardrail is provided with glue outlets at intervals along the longitudinal direction, and the outer wall of the bottom of the prefabricated anti-collision guardrail has false seams.
优选地，所述护栏连接钢筋、抗弯钢筋与角钢之间通过辅助钢筋进行双面焊接。Preferably, the guardrail connecting steel bar, the bending steel bar and the angle steel are welded on both sides by auxiliary steel bars.
优选地，所述预制防撞护栏内部还预埋有PVC管。Preferably, a PVC pipe is pre-embedded inside the prefabricated crash barrier.
有益效果：Beneficial effect:
(1)通过将预制防撞护栏内部钢筋与角钢焊接，并将角钢与预埋在预制主梁的预制钢板焊接，可有效地将预制防撞护栏与预制主梁连接成整体，现场施工便捷，装配化程度高；(1) By welding the internal reinforcement of the prefabricated anti-collision guardrail with the angle steel, and welding the angle steel with the prefabricated steel plate embedded in the prefabricated main beam, the prefabricated anti-collision guardrail and the prefabricated main beam can be effectively connected as a whole, and the on-site construction is convenient. High degree of assembly;
(2)角钢设置坡口并与预埋钢板采用坡口焊焊接，可减少角钢与预埋钢板的用量，同时提高防撞护栏抗冲击能力；(2) The angle steel is provided with a groove and welded with the embedded steel plate by groove welding, which can reduce the amount of angle steel and embedded steel plate, and at the same time improve the impact resistance of the anti-collision guardrail;
(3)预制主梁设置的挡块或剪力键可有效承受防撞护栏的水平力。(3) The block or shear key set by the prefabricated main beam can effectively bear the horizontal force of the anti-collision barrier.
附图说明Description of drawings
下面结合附图和实施例对本发明做进一步的说明；Below in conjunction with accompanying drawing and embodiment the present invention will be further described;
图1为本发明第一实施例的断面结构示意图；Fig. 1 is the cross-sectional structure schematic diagram of the first embodiment of the present invention;
图2为本发明第一实施例的侧面结构示意图；Fig. 2 is the side structural schematic diagram of the first embodiment of the present invention;
图3为本发明第二实施例的断面结构示意图；3 is a schematic cross-sectional structure diagram of a second embodiment of the present invention;
图4为本发明第二实施例的另一断面结构示意图；Fig. 4 is another cross-sectional structural schematic diagram of the second embodiment of the present invention;
图5为本发明第二实施例的侧面结构示意图Fig. 5 is the side structure schematic diagram of the second embodiment of the present invention
具体实施方式Detailed ways
参照图1至图5，本发明钢板连接预制装配式钢筋混凝土侧边防撞护栏，包括预制防撞护栏20和预制主梁10，预制防撞护栏20由混凝土预制构成并在内部预埋有纵向钢筋21、抗弯钢筋22、护栏连接钢筋23及角钢24，角钢24位于预制防撞护栏20底部迎撞端面，角钢24的外侧端面裸露在外，纵向钢筋21沿纵向布置，抗弯钢筋22于预制防撞护栏20外侧底部的纵向钢筋21位置处弯折，护栏连接钢筋23的其中一端于预制防撞护栏20外侧底部的纵向钢筋21位置处弯折，并在预制防撞护栏20内侧底部的纵向钢筋21位置处弯折与角钢24焊接连接，另外一端继续延伸伸入预制防撞护栏20内部，优选地，护栏连接钢筋23、抗弯钢筋22与角钢24之间通过辅助钢筋进行双面焊接连接。当然，可以取消护栏连接钢筋23，此时抗弯钢筋22环绕一圈布置并在弯折处与角钢24焊接；同时，为方便构件预制，角钢24可以采用较厚的钢板替换，此时，可以不设置辅助钢筋。Referring to Fig. 1 to Fig. 5, the steel plate of the present invention is connected to the prefabricated assembled reinforced concrete side crash guardrail, including the prefabricated crash guardrail 20 and the prefabricated main beam 10, and the prefabricated crash guardrail 20 is made of prefabricated concrete and embedded with longitudinal Steel bar 21, bending steel bar 22, guardrail connecting steel bar 23 and angle steel 24, angle steel 24 is located at the bottom face of the prefabricated anti-collision guardrail 20, the outer end face of angle steel 24 is exposed, longitudinal steel bar 21 is arranged longitudinally, and bending steel bar 22 is placed on the prefabricated anti-collision guardrail 20. The longitudinal steel bar 21 at the outer bottom of the anti-collision barrier 20 is bent, and one end of the guardrail connecting steel bar 23 is bent at the longitudinal steel bar 21 at the outer bottom of the prefabricated anti-collision barrier 20, and at the longitudinal direction of the inner bottom of the prefabricated anti-collision barrier 20 The steel bar 21 is bent and welded to the angle steel 24, and the other end continues to extend into the inside of the prefabricated crash barrier 20. Preferably, the guardrail connecting steel bar 23, the bending steel bar 22 and the angle steel 24 are connected by double-sided welding through auxiliary steel bars . Of course, the guardrail connection reinforcing bar 23 can be cancelled. At this time, the bending-resistant reinforcing bar 22 is arranged in a circle and welded with the angle steel 24 at the bend; at the same time, for the convenience of component prefabrication, the angle steel 24 can be replaced by a thicker steel plate. At this time, it can be No auxiliary reinforcement is provided.
预制主梁10预埋具有预埋钢筋11和预埋钢板12，预埋钢筋11完全预埋在预制主梁10内部，且为保证锚固长度将其向两侧弯曲，预埋钢板12位于预制主梁10顶面。The prefabricated main beam 10 is pre-embedded with pre-embedded steel bars 11 and pre-embedded steel plates 12. The pre-embedded steel bars 11 are completely pre-embedded inside the prefabricated main girder 10, and are bent to both sides to ensure the anchorage length. Beam 10 top surface.
安装时，首先在预制主梁10上方对应位置设置砂浆垫层30，为保证砂浆垫层30有足够的放置空间，预埋钢板12凸出预制主梁10一定高度，随后吊装所述预制防撞护栏20，并对角钢24与预埋钢板12进行焊接连接，以将预制防撞护栏20与预制主梁10相连。During installation, a mortar cushion 30 is first installed at the corresponding position above the prefabricated main beam 10. In order to ensure sufficient space for the mortar cushion 30, the pre-embedded steel plate 12 protrudes from the prefabricated main beam 10 to a certain height, and then the prefabricated anti-collision guardrail 20, and weld the angle steel 24 and the embedded steel plate 12 to connect the prefabricated anti-collision guardrail 20 with the prefabricated main girder 10.
其中，为了减少角钢24与预埋钢板12的用量，同时提高防撞护栏抗冲击能力，吊装前在角钢24设置坡口，角钢24与预埋钢板12之间采用坡口焊焊接。此外，预埋钢板12与角钢24之间还可以设置多个连接钢板25，连接钢板25与预埋钢板12、角钢24之间通过角焊缝连接。Among them, in order to reduce the amount of angle steel 24 and embedded steel plate 12, and at the same time improve the impact resistance of the anti-collision barrier, a groove is provided on the angle steel 24 before hoisting, and groove welding is used between the angle steel 24 and the embedded steel plate 12. In addition, a plurality of connecting steel plates 25 can also be arranged between the embedded steel plate 12 and the angle steel 24, and the connecting steel plates 25, the embedded steel plate 12 and the angle steel 24 are connected by fillet welds.
预制主梁10端部向上延伸形成与预制防撞护栏20配合定位的挡块13，以抵抗预制防撞护栏20的水平推力。在预制主梁10端部下方设置滴水线14，滴水线14内部按构造配置钢筋并与预制主梁10共同预制。The end of the prefabricated main girder 10 extends upward to form a block 13 cooperating with the prefabricated anti-collision barrier 20 to resist the horizontal thrust of the prefabricated anti-collision barrier 20 . A drip line 14 is arranged below the end of the prefabricated main girder 10 , and the interior of the drip line 14 is configured with steel bars according to the structure and prefabricated together with the prefabricated main girder 10 .
当然，为减小桥面宽度，可以取消挡块13的设置，并在预制防撞护栏20底部设置剪力槽26与出胶槽27，出胶槽27沿纵向间隔布置，相应地，预制主梁10设有与剪力槽26嵌固配合的剪力键15，并将滴水线14移至预制主梁10端部。在预制防撞护栏20底面与预制主梁10顶面留设胶接缝，胶接缝优选为3mm。Of course, in order to reduce the width of the bridge deck, the setting of the block 13 can be canceled, and the shear force groove 26 and the glue outlet groove 27 are arranged at the bottom of the prefabricated crash barrier 20, and the glue outlet groove 27 is arranged at intervals along the longitudinal direction. The beam 10 is provided with a shear key 15 that fits firmly with the shear groove 26 and moves the drip line 14 to the end of the prefabricated main beam 10 . A glue joint is left on the bottom surface of the prefabricated anti-collision guardrail 20 and the top surface of the prefabricated main beam 10, and the glue joint is preferably 3mm.
安装时，首先在预制主梁10对应的顶面均匀涂抹环氧树脂胶剂，环氧树脂胶剂厚度不小于3mm，随后吊装预制防撞护栏20并将剪力槽26与剪力键15对准，利用预制防撞护栏20的自重与出胶槽27将环氧树脂胶剂挤出，环氧树脂胶剂固化形成环氧树脂胶层16。预制防撞护栏20底部外壁具有假缝28，环氧树脂胶剂挤出后沿假缝28刮除溢出的多余环氧树脂胶剂，使得结构更为美观。During installation, firstly apply epoxy resin glue evenly on the top surface corresponding to the prefabricated main beam 10, the thickness of the epoxy resin glue is not less than 3mm, then hoist the prefabricated anti-collision guardrail 20 and make the shear groove 26 and the shear force key 15 pair The epoxy resin adhesive is extruded by the weight of the prefabricated anti-collision guardrail 20 and the glue outlet 27, and the epoxy resin adhesive is cured to form the epoxy resin adhesive layer 16. The outer wall of the bottom of the prefabricated anti-collision guardrail 20 has a false seam 28, and after the epoxy resin glue is extruded, the excess epoxy resin glue overflowed along the false seam 28 is scraped off to make the structure more beautiful.
作为优选，预制防撞护栏20内部还预埋有PVC管29，可以方便路灯电线或通信光缆等线材的放置，并减轻预制防撞护栏20的重量。Preferably, a PVC pipe 29 is pre-embedded inside the prefabricated anti-collision barrier 20 , which can facilitate the placement of wires such as street lamp wires or communication optical cables, and reduce the weight of the prefabricated anti-collision barrier 20 .
上面结合附图对本发明的实施方式作了详细说明，但是本发明不限于上述实施方式，在所述技术领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and can also be made without departing from the gist of the present invention within the scope of knowledge of those of ordinary skill in the art. Variations.
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Cited By (5)
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| CN110205931A (en) * | 2019-07-03 | 2019-09-06 | 广州市市政工程机械施工有限公司 | A kind of prefabricated assembled Collison fence for bridge |
| CN110820553A (en) * | 2019-10-30 | 2020-02-21 | 上海市政工程设计研究总院（集团）有限公司 | Combined prefabricated bridge guardrail |
| CN112281654A (en) * | 2020-11-05 | 2021-01-29 | 安徽省公路桥梁工程有限公司 | A kind of semi-fabricated steel frame bridge anti-collision guardrail and its construction method |
| CN114164756A (en) * | 2021-12-22 | 2022-03-11 | 武汉理工大学 | Light high-strength assembly type bridge anti-collision guardrail |
| CN115030030A (en) * | 2022-06-30 | 2022-09-09 | 湖北益通建设股份有限公司 | Installation and construction method of assembled anti-collision wall |
-
2018
- 2018-07-16 CN CN201810822711.5A patent/CN108824189A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205931A (en) * | 2019-07-03 | 2019-09-06 | 广州市市政工程机械施工有限公司 | A kind of prefabricated assembled Collison fence for bridge |
| CN110820553A (en) * | 2019-10-30 | 2020-02-21 | 上海市政工程设计研究总院（集团）有限公司 | Combined prefabricated bridge guardrail |
| CN112281654A (en) * | 2020-11-05 | 2021-01-29 | 安徽省公路桥梁工程有限公司 | A kind of semi-fabricated steel frame bridge anti-collision guardrail and its construction method |
| CN114164756A (en) * | 2021-12-22 | 2022-03-11 | 武汉理工大学 | Light high-strength assembly type bridge anti-collision guardrail |
| CN115030030A (en) * | 2022-06-30 | 2022-09-09 | 湖北益通建设股份有限公司 | Installation and construction method of assembled anti-collision wall |
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