CN202705895U - Truss lattice reinforcing support device for concrete bridge deck slab - Google Patents
Truss lattice reinforcing support device for concrete bridge deck slab Download PDFInfo
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- CN202705895U CN202705895U CN 201220149431 CN201220149431U CN202705895U CN 202705895 U CN202705895 U CN 202705895U CN 201220149431 CN201220149431 CN 201220149431 CN 201220149431 U CN201220149431 U CN 201220149431U CN 202705895 U CN202705895 U CN 202705895U
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- 230000003014 reinforcing effect Effects 0.000 title abstract 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 238000003466 welding Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 15
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000004873 anchoring Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 9
- 201000010099 disease Diseases 0.000 description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Abstract
The utility model relates to a truss lattice reinforcing support device for a concrete bridge deck slab. The truss lattice reinforcing support device is formed through assembly of a top surface steel plate and a steel truss in welding mode. Horizontal reinforcing ribs and longitudinal reinforcing ribs are arranged on the bottom face of the top surface steel plate. An upper chord and a lower chord are arranged in parallel mode. Web members comprise vertical rod pieces and inclined rod pieces, and the web members are welded with the upper chord and the lower chord through joint steel plates. The truss lattice reinforcing support device utilizes effective space between lower main beams of the concrete bridge deck slab, and the top surface steel plate is closely attached to the bottom face of the bridge deck slab. Anchor slabs on two ends of the lower chord are respectively fixed with side faces of adjacent main beams through anchor bolts in anchoring mode to supply support for the truss lattice reinforcing support device. The truss lattice reinforcing support device can improve force bearing of a cracked concrete bridge deck slab, guarantees safety of a bridge beam structure and bridge surface vehicles, strengthens horizontal connection between the main beams, and has the advantages of simple assembly and machining, convenient pre-buried construction, simple mounting and dismounting, light and attractive appearance, and no influence on bridge surface traffic.
Description
Technical field
The utility model relates to a kind of concrete slab reinforced support device, refers to especially a kind of truss lattice concrete slab reinforced support device.
Background technology
The bridge main beam bridge deck link to each other with beam rib and diaphragm, and vehicular load is passed to girder, when directly bearing the vehicle wheel load, are again the important component parts of girder section.Compare with girder beam rib, bridge deck are generally thinner, because deck paving and the damage of waterproofing course and the effect of percolating water, under water erosion, carbonization and live loading, the diseases such as the easy cracking of concrete slab, breakage.This kind disease further develops when serious, the bridge deck dangerous situation such as easily subside.Especially some old bridges, the former design of its concrete slab is thinner, and promoting to a higher rank when service load changes or during overload, safety stock is not enough.
Because bridge deck are covered under the deck paving usually, cracking, breakage occur, or even during dangerous situation, its damaged scope, degree are difficult for judging, are difficult to adopt the measures such as steel bonding or sprayed mortar to carry out reinforcement.The general employing covers steel plate or cuts damaged concrete and the mode of again cast is protected and keeped in repair temporarily, sometimes also carries out under the bridge full proping mode and carries out provisional protection.
Cover steel plate and can only tackle bridge deck Local Cracking and damaged dangerous situation temporarily, inapplicable large tracts of land bridge deck disease, and the not anti-skidding problem in surface of covering steel plate can have a negative impact to the bridge floor driving.Set up the protection of support temporary supporting under the bridge, will take space under bridge, affect road under the bridge.Again pour into a mould and cut old concrete in the maintenance mode of bridge deck, combing and assembling reinforcement and cast bridge deck concrete construction period are longer again.Especially the concrete curing time, even adopt the high-early-strength material, also need the construction period of growing.Under the day by day serious prerequisite of present situation urban traffic blocking situation, this kind maintenance mode certainly will produce road traffic and have a strong impact on.
The utility model belongs to a kind of truss lattice concrete slab reinforced support device when above-mentioned bridge deck disease or dangerous situation generation occurring.
The utility model content
The purpose of this utility model provides a kind of truss lattice concrete slab reinforced support device, it has advantages of, and assembling processing is easy, Embedment Construction convenient, assembling and disassembling fast simple, outward appearance lightly attractive in appearance, do not affect bridge deck traffic; It is stressed that this device can improve the cracked concrete bridge deck, guarantees bridge construction and bridge floor traffic safety, strengthens lateral ties between the girder; This device also can pass through in measures such as end face steel plate welding shear connectors simultaneously, and is jointly stressed with new cast bridge deck concrete, uses as permanent member.
The purpose of this utility model is achieved by the following technical programs:
A kind of truss lattice concrete slab reinforced support device, it comprises: end face steel plate, upper chord, lower chord, web member, anchor slab, crab-bolt, end face steel plate bottom surface is provided with stiffening rib, end face steel plate bottom surface center line is provided with upper chord, certain distance is provided with lower chord abreast below the upper chord, connects upper chord and lower chord formation steel truss with web member, is respectively equipped with anchor slab on the cross section at lower chord two ends, being connected between each parts is fixedly connected with, and forms the truss cancelled structure.
The horizontal and vertical stiffening rib that is equipped with in end face steel plate bottom surface, web member comprises oblique rod member and vertical bar, web member is connected by the node steel plate with upper chord, lower chord.Add rubber mat plate at described end face steel plate.Described each parts all adopt conventional Steel section member, and end face steel plate, anchor slab, stiffening rib adopt steel plate, and upper chord, lower chord adopt channel-section steel, and web member adopts channel-section steel or angle steel, are connected to welding between described each parts.
The utility model has following advantage and good effect:
For solve prior art to traffic impact under bridge floor, the bridge problem such as large and duration, adopt truss lattice bracing or strutting arrangement not only to improve bridge deck stressed, guarantee bridge construction and traffic safety, also can strengthen to a certain extent the lateral ties between the girder, more can be the bridge deck maintenance and strive for opportune time and condition.
This installs each parts and all adopts conventional Steel section member, connects to adopt welding manner, and simple and convenient assembly is quick, is convenient to the Batch assemblage production of member factory.Adopt measure such as zinc-plated grade to guarantee its endurance quality.
But bracing or strutting arrangement Fast Installation and dismounting, installation is carried out under bridge, and is little on the bridge deck traffic impact; After the safety guarantee of bracing or strutting arrangement has been arranged, when can being chosen in the traffic pressure less, the bridge deck maintenance constructs; This kind bracing or strutting arrangement weight is lighter, and is little on the impact of girder supporting capacity; By in modes such as end face Plate Welding shear connectors, this kind bracing or strutting arrangement can a permanent part as deck structrue.
This device can reuse, and is with a wide range of applications in the Urban Bridge bridge deck maintenance and renovations such as T-shaped, ∏ type and box-shaped, has good economic benefit and social benefit.
Description of drawings
Fig. 1 is bracing or strutting arrangement front elevation view of the present utility model,
Fig. 2 is bracing or strutting arrangement side elevational view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of truss lattice concrete slab reinforced support device, it comprises: end face steel plate 1, upper chord 2, lower chord 3, web member 4, anchor slab 5, crab-bolt 6, end face steel plate 1 bottom surface is provided with stiffening rib 7, end face steel plate 1 bottom surface center line is provided with upper chord 2, certain distance is provided with lower chord 3 abreast below the upper chord 2, connect upper chord 2 and lower chord 3 formation steel trusss with web member 4, be respectively equipped with anchor slab 5 on the cross section at lower chord 3 two ends, being connected between each parts is fixedly connected with, and forms the truss cancelled structure; This device is installed between two girders under the concrete bridge, and end face steel plate 1 is near the bridge deck bottom surface, two anchor slabs 5 respectively with the side of adjacent girder with crab-bolt 6 anchorings.
The horizontal and vertical stiffening rib 7 that is equipped with in end face steel plate 1 bottom surface, web member 4 comprises oblique rod member and vertical bar, web member is connected by the node steel plate with upper chord, lower chord.Add rubber mat plate at described end face steel plate 1, apply suitable top power at lower chord 3 during installation, make this device end face and bridge deck bottom surface closely connected.Described each parts all adopt conventional Steel section member, and end face steel plate 1, anchor slab 5, stiffening rib 7 adopts steel plates, and upper chord 2, lower chord 3 adopt channel-section steels, and web member 4 adopts channel-section steel or angle steel, are connected to welding between described each parts.
This installs at the construction field (site) integral installation, quick rapidly, does not affect bridge deck traffic.Because own wt is lighter, adopt the small-sized hydraulic jacking equipment can carry out the device installation.For adapting to different bridge horizontal wall inscriptions and the longitudinal gradient gradient, add rubber mat plate on the bracing or strutting arrangement end face steel plate, apply suitable top power during installation, but assurance device end face and bridge deck bottom surface are closely connected.
Bracing or strutting arrangement weight is lighter, and is little on the impact of girder supporting capacity, also can improve to a certain extent the lateral ties between the girder.This device improves bridge deck stressed the time, and the bridge main body structure need not carried out any other reinforcement measure.
This bracing or strutting arrangement is as load-carrying members, adopts truss lattice shaped steel combination member by designing and calculating, and the concrete slab that has serious plant disease and form dangerous situation is effectively supported.Before the bridge deck overhaul, play the effect of guaranteeing bridge construction and bridge floor traffic safety, for suitable execution conditions and opportunity are won in the bridge deck overhaul.During the bridge deck overhaul, can weld shear connector at the end face steel plate, bracing or strutting arrangement and the acting in conjunction of new cast bridge deck use as permanent structure.
Truss lattice concrete slab reinforced support device has that assembling processing is easy, Embedment Construction convenient, assembling and disassembling is simple, the characteristics of the light and handy attractive in appearance and uninterrupted traffic of outward appearance.
Embodiment one
South 3rd Ring Road, west, city bridge, the damaged disease of cracking appears in concrete slab, has a strong impact on the load lateral transport, and the potential safety hazard that dangerous situation occurs is arranged.Because factors such as concrete construction temperature and traffic pressures, bridge deck overhaul construction wouldn't be implemented.For guaranteeing bridge construction and traffic safety, this truss lattice bracing or strutting arrangement is installed in the concrete slab bottom surface, and the bridge deck that have serious plant disease are effectively supported.Bracing or strutting arrangement weight is lighter, analyzes as calculated the impact of girder supporting capacity less.Adopt this kind device to improve the bridge deck stress, strengthened lateral ties between the girder, when guaranteeing that front axle beam structure and bridge floor traffic safety are implemented in the bridge deck overhaul, more the time has been won in the bridge deck overhaul, has obtained good economic and social profit.
In the engineering construction, bracing or strutting arrangement end face steel plate, upper chord, lower chord, web member and supporting node steel plate etc. are at steel work factory flat moulded prefabricated in batches, so steel work adopts galvanized anticorrosive to guarantee endurance quality.In the practice of construction, after the on-the-spot pre-buried installation of anchor slab and crab-bolt, use the small-sized hydraulic jacking equipment and carry out the bracing or strutting arrangement installation.Apply suitable top power at the lower chord place during on-the-spot the installation, guarantee that the end face steel plate is closely connected by rubber mat plate and bridge deck bottom surface.So bracing or strutting arrangement construction content is all carried out under bridge, and bridge deck traffic is not exerted an influence.During the bridge deck overhaul, weld shear connector at the end face steel plate, bracing or strutting arrangement and the acting in conjunction of new cast bridge deck use as permanent structure.
This bracing or strutting arrangement has effectively utilized the space under bridge between the girder, and structure is light and handy, and Total tune is attractive in appearance.
Claims (4)
1. truss lattice concrete slab reinforced support device, it comprises: end face steel plate (1), upper chord (2), lower chord (3), web member (4), anchor slab (5), crab-bolt (6), it is characterized in that: end face steel plate (1) bottom surface is provided with stiffening rib (7), end face steel plate (1) bottom surface center line is provided with upper chord (2), certain distance is provided with lower chord (3) abreast below the upper chord (2), connect upper chord (2) and lower chord (3) formation steel truss with web member (4), be respectively equipped with anchor slab (5) on the cross section at lower chord (3) two ends, being connected between each parts is fixedly connected with, and forms the truss cancelled structure.
2. according to claims 1 described truss lattice concrete slab reinforced support device, it is characterized in that: the horizontal and vertical stiffening rib (7) that is equipped with in end face steel plate (1) bottom surface, web member (4) comprises oblique rod member and vertical bar, and web member is connected by the node steel plate with upper chord, lower chord.
3. according to claims 1 described truss lattice concrete slab reinforced support device, it is characterized in that: add rubber mat plate at described end face steel plate (1).
4. according to claims 1 described truss lattice concrete slab reinforced support device, it is characterized in that: described each parts all adopt conventional Steel section member, end face steel plate (1), anchor slab (5), stiffening rib (7) adopt steel plate, upper chord (2), lower chord (3) adopt channel-section steel, web member (4) adopts channel-section steel or angle steel, is connected to welding between described each parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149431 CN202705895U (en) | 2012-04-10 | 2012-04-10 | Truss lattice reinforcing support device for concrete bridge deck slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149431 CN202705895U (en) | 2012-04-10 | 2012-04-10 | Truss lattice reinforcing support device for concrete bridge deck slab |
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| CN202705895U true CN202705895U (en) | 2013-01-30 |
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| CN 201220149431 Expired - Lifetime CN202705895U (en) | 2012-04-10 | 2012-04-10 | Truss lattice reinforcing support device for concrete bridge deck slab |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372748A (en) * | 2014-11-15 | 2015-02-25 | 北京市政路桥股份有限公司 | Steel truss diaphragm for bridge broadening new-old bridge connecting |
| CN104727235A (en) * | 2015-03-31 | 2015-06-24 | 吴本刚 | Bridge overall strengthening device |
| CN105464003A (en) * | 2014-09-06 | 2016-04-06 | 任丘市永基建筑安装工程有限公司 | Technology for enhancing strength of tensile region of bridge plate |
| CN107938525A (en) * | 2017-12-20 | 2018-04-20 | 山西省交通规划勘察设计院 | A kind of ruggedized construction and its method of assembled continuous box girder |
| CN108385547A (en) * | 2018-02-07 | 2018-08-10 | 大连理工大学 | A kind of additional truss reinforcement means of arch bridge floorings |
| CN110685211A (en) * | 2019-11-13 | 2020-01-14 | 中国人民解放军陆军工程大学 | Full composite bridge and erection method |
| CN111677321A (en) * | 2020-06-04 | 2020-09-18 | 江苏文博建筑设计有限公司 | Assembled building reinforced structure |
| CN115125875A (en) * | 2022-08-16 | 2022-09-30 | 浙江交工高等级公路养护有限公司 | Bridge deck load shedding and reinforcing structure and construction method |
-
2012
- 2012-04-10 CN CN 201220149431 patent/CN202705895U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464003A (en) * | 2014-09-06 | 2016-04-06 | 任丘市永基建筑安装工程有限公司 | Technology for enhancing strength of tensile region of bridge plate |
| CN104372748A (en) * | 2014-11-15 | 2015-02-25 | 北京市政路桥股份有限公司 | Steel truss diaphragm for bridge broadening new-old bridge connecting |
| CN104727235A (en) * | 2015-03-31 | 2015-06-24 | 吴本刚 | Bridge overall strengthening device |
| CN107938525A (en) * | 2017-12-20 | 2018-04-20 | 山西省交通规划勘察设计院 | A kind of ruggedized construction and its method of assembled continuous box girder |
| CN107938525B (en) * | 2017-12-20 | 2023-06-30 | 山西省交通规划勘察设计院有限公司 | Reinforcing structure and method for assembled continuous box girder |
| CN108385547A (en) * | 2018-02-07 | 2018-08-10 | 大连理工大学 | A kind of additional truss reinforcement means of arch bridge floorings |
| CN110685211A (en) * | 2019-11-13 | 2020-01-14 | 中国人民解放军陆军工程大学 | Full composite bridge and erection method |
| CN111677321A (en) * | 2020-06-04 | 2020-09-18 | 江苏文博建筑设计有限公司 | Assembled building reinforced structure |
| CN111677321B (en) * | 2020-06-04 | 2021-10-08 | 江苏文博建筑设计有限公司 | Assembled building reinforced structure |
| CN115125875A (en) * | 2022-08-16 | 2022-09-30 | 浙江交工高等级公路养护有限公司 | Bridge deck load shedding and reinforcing structure and construction method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING GENERAL MUNICIPAL ENGINEERING DESIGN + RES Free format text: FORMER NAME: BEIJING MUNICIPAL ENGINEERING DESIGN RESEARCH CENTRAL INST. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 100082 Beijing, Xizhimen, North Street, building 32, No., building 3 Patentee after: BEIJING GENERAL MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE CO., LTD. Address before: 100082 Beijing, Xizhimen, North Street, building 32, No., building 3 Patentee before: Beijing General Municipal Engineering Design & Research Institute |
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| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |