CN105442440A - Cross-linking-type curved-beam-bridge combined expansion joint - Google Patents
Cross-linking-type curved-beam-bridge combined expansion joint Download PDFInfo
- Publication number
- CN105442440A CN105442440A CN201511014672.9A CN201511014672A CN105442440A CN 105442440 A CN105442440 A CN 105442440A CN 201511014672 A CN201511014672 A CN 201511014672A CN 105442440 A CN105442440 A CN 105442440A
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- expansion
- shrinkage joint
- joint
- bridge
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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
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a cross-linking-type curved-beam-bridge combined expansion joint. Expansion-joint boundary beams on the left side and the right side and an expansion-joint middle beam in the middle are arranged in the bridge expansion joint to divide the expansion joint into two parts, steel-structure combined cross-linking-type expansion fences are installed in the two parts respectively, and hinging is carried out with a parallelogram principle. Expansion rods are installed at the bottoms of the expansion fences, and the two ends of the expansion rods are spherical movable ends, are embedded into steel-beam inner sliding grooves, can freely rotate and can move in the direction of the steel beams. U-shaped thin metal plates are further erected on the surfaces of the portions between the expansion-joint boundary beams and the expansion-joint middle beam, factice is laid on the thin metal plates, and the impact resistance of the thin metal plates is improved; a mechanical spring device is connected to the lower portion of the expansion-joint middle beam in a bearing mode for quake resisting. The cross-linking-type curved-beam-bridge combined expansion joint is simple in structure, convenient to install and high in applicability, and has the function of adjusting the initial expansion amount, the influence of installation temperature on the displacement of the expansion joint is reduced, the vehicle impacting effect is effectively buffered, damage caused by vehicle impacting is reduced, and the service life is longer.
Description
Technical field
The present invention relates to technical field of bridge construction, be specifically related to a kind of crosslinked formula curved beam bridges combination shrinkage joint.
Background technology
For ensureing under all kinds of factor impact such as temperature Change, creep and shrinkage of concrete and load action, bridge span structure can freely be out of shape, the stationarity that vehicle passes through can be taken into account simultaneously, between two adjacent beam-ends, need to arrange bridge expanssion joint between beam-ends and abutment parados, and stretching device is set at shrinkage joint place.Bridge extension joint is directly exposed to bridge floor, bear vehicle, the repeated action of pedestrian load and beam body and vary with temperature flexible impact, very little defect and deficiency, namely shrinkage joint can be made to be damaged, reduce its application life, even having influence on the life security of bridge construction itself and passenger, is the position of the most fragile more difficult repairerment again in bridge construction.
Bridge expanssion joint especially destroys based on Large Span Bridges, skew bridge, curved bridge in destroying, wherein the destruction at curved beam bridges shrinkage joint occupies greatly, and this is due to the as broad as long tectonic type in general girder construction during most of curved beam bridges design and installation shrinkage joint or anchoring process.Curved beam bridges is compared with general linear pattern bridge, and stretching device is stressed very different.Under the impact of all kinds of factor such as variations in temperature, creep and shrinkage of concrete and load action, what its geometrical construction made longitudinally to produce shrinkage joint by both sides inside and outside bridge draws (pressure) power uneven; Meanwhile, due to unique mechanical characteristic of curved beam bridges, bridge direction across bridge also can produce certain active force to shrinkage joint; In conjunction with beam-ends vertical deflection variable effect, shrinkage joint is stressed very complicated.Therefore, in the malicious event of most of curved beam bridges shrinkage joint, the extremely uneven main reason being its generation and destroying that shrinkage joint is stressed.
At present, the research both at home and abroad for curved beam bridges shrinkage joint is extremely rare, and common bridge connection type steel plate shrinkage joint, rubbery expansion joint, interdigitated electrode structure shrinkage joint, composite extendible seam all can not be applicable in curved beam bridges completely.Especially the Telescopic rubber device widely applied at present, because rubber can not adapt to multidirectional deformation, destroys particularly outstanding, inquires into the shrinkage joint modifying device being applicable to Curved Beam Bridge and has Research Significance.
Summary of the invention
Technical problem to be solved by this invention is the deficiency for above-mentioned existence, there is provided a kind of structure simple, easy for installation, can ensure all kinds of bridge particularly Curved Beam Bridge shrinkage joint vertical bridge to, perpendicular bridge to and direction across bridge three direction displacement, applicability is strong, possesses initial stroke regulatory function, reduce temperature to be installed on the impact of its displacement, effective buffering vehicle percussion, weakens the destruction that vehicular impact causes, the crosslinked formula curved beam bridges combination shrinkage joint of longer service life.
(4) combined type structure, simplifies mounting process, and maintenance more for convenience.
The technical solution adopted for the present invention to solve the technical problems is:
Crosslinked formula curved beam bridges combination shrinkage joint, it is characterized in that, the shrinkage joint side bar of the left and right sides and middle shrinkage joint central sill are set in the shrinkage joint of bridge, shrinkage joint is divided into two parts, and the crosslinked formula of steel work combination is all installed in two parts stretches fence, utilization parallelogram principle is hinged, be provided with expansion link bottom flexible fence, expansion link two ends are spherical movable end, are embedded in girder steel internal chute, free to rotate, and movable along girder steel direction; Between shrinkage joint side bar and shrinkage joint central sill, surface is also erected with matrix metal sheet roof covering, and metal sheet roof covering lays ointment, increases its impact resistance; Accepting spring mechanism under the central sill of shrinkage joint carries out shockproof.
In such scheme, described spring mechanism is along the equidistant setting in direction, shrinkage joint, and each spring mechanism includes some layers of gripper shoe, is provided with spring between gripper shoe, is also provided with spring between gripper shoe and steel casing.
In such scheme, described metallic sheet stock adopts copper sheet or galvanized steel plain sheet, plays the effect of preventing dust foreign matter and draining.
A whole set of expansion gap device, emphasis improves for stretching device, rubber strip is replaced with expansion link and metal sheet roof covering, ensure that the three direction displacement distortion of bridge, also serves drainage simultaneously.
Specific construction installation procedure is: reserved construction groove before the construction of shrinkage joint, and at beam body embedded bar, first assembly welding is carried out to steel casing and spring assembly, to be placed in bridge expanssion joint groove and to position, on the downside of steel casing, the equal welded reinforcement in outside, carrying out weld anchor solid with embedded bar on beam body and become steel mesh reinforcement, an entirety is formed with steel casing, on steel casing, stretching device is installed again, finally builds slightly expanded concrete, and pour into ointment on metal sheet roof covering.
The beneficial effect that the present invention produces is:
(1) can ensure all kinds of bridge particularly Curved Beam Bridge shrinkage joint vertical bridge to, perpendicular bridge to and direction across bridge three direction displacement, applicability is strong;
(2) possess initial stroke regulatory function, reduce temperature to be installed on the impact of its displacement;
(3) effectively cushion vehicle percussion, weaken the destruction that vehicular impact causes, longer service life;
(4) combined type structure, simplifies mounting process, and maintenance more for convenience.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention planar configuration schematic diagram;
Fig. 2 is embodiment of the present invention cross section A-A organigram;
Fig. 3 is embodiment of the present invention cross section B-B organigram;
Fig. 4 is embodiment of the present invention vertical cross section C-C organigram;
Fig. 5 is embodiment of the present invention shrinkage joint partial enlarged drawing;
In figure: 1. expansion link, 2. shrinkage joint side bar, 3. shrinkage joint central sill, 4. spherical movable end, 5. chute, 6. steel casing, 7. spring, 8. steel plate, 9. compressing support, 10. fixed bearing, 11. metal sheet roof coverings, 12. ointment, 13. anchor bars.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated:
Crosslinked formula curved beam bridges combination shrinkage joint as shown in Figure 1, the shrinkage joint side bar 2 of the left and right sides and middle shrinkage joint central sill 3 are set in the shrinkage joint of bridge, shrinkage joint is divided into two parts, and the crosslinked formula of steel work combination is all installed in two parts stretches fence, shrinkage joint side bar 2 is connected with expansion link 1 with shrinkage joint central sill 3, expansion link 1 two ends are spherical movable end 4, spherical movable end 4 is embedded in chute 5, below jointly stretching device is formed, when beam body stretches, expansion link 1 is similar to parallelogram and moves in chute 5, the direction across bridge of guarantee beam body and vertical bridge are to displacement, be arranged to spherical movable end 4 simultaneously and also ensure that perpendicular bridge is to displacement, stretching device lower end is steel casing 6, and shrinkage joint side bar 2 is positioned on steel casing 6, and shrinkage joint central sill 3 is arranged on casing spring assembly, consisting of of spring assembly: connect with spring 7 between upper lower steel plate 8, be fixed by compressing support 9 fixed bearing 10, matrix metal sheet roof covering 11 is overlapped between shrinkage joint side bar 2 and shrinkage joint central sill 3, metal sheet roof covering 11 is laid one deck ointment 12, increases its impact resistance, and this arranges and does not have an impact to the free-extension of stretching device, and dust-proof draining has concurrently.A whole set of stretching device welds anchoring by anchor bar 13 with beam body reserved steel bar.
Embodiment of the present invention Specific construction installation procedure is: reserved construction groove before the construction of shrinkage joint, and at beam body embedded bar, first assembly welding is carried out to steel casing and spring assembly, to be placed in bridge expanssion joint groove and to position, on the downside of steel casing, the equal welded reinforcement in outside, carrying out weld anchor solid with embedded bar on beam body and become steel mesh reinforcement, an entirety is formed with steel casing, on steel casing, stretching device is installed again, finally builds slightly expanded concrete, and pour into ointment on metal sheet roof covering.
More than illustrate and be only Application Example of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalence change that the present patent application the scope of the claims is done, still belong to protection scope of the present invention.
Claims (3)
1. crosslinked formula curved beam bridges combination shrinkage joint, it is characterized in that, the shrinkage joint side bar of the left and right sides and middle shrinkage joint central sill are set in the shrinkage joint of bridge, shrinkage joint is divided into two parts, and the crosslinked formula of steel work combination is all installed in two parts stretches fence, utilization parallelogram principle is hinged, be provided with expansion link bottom flexible fence, expansion link two ends are spherical movable end, are embedded in girder steel internal chute, free to rotate, and movable along girder steel direction; Between shrinkage joint side bar and shrinkage joint central sill, surface is also erected with matrix metal sheet roof covering, and metal sheet roof covering lays ointment, increases its impact resistance; Accepting spring mechanism under the central sill of shrinkage joint carries out shockproof.
2. crosslinked formula curved beam bridges combination shrinkage joint as claimed in claim 1, it is characterized in that, described spring mechanism is along the equidistant setting in direction, shrinkage joint, each spring mechanism includes some layers of gripper shoe, be provided with spring between gripper shoe, between gripper shoe and steel casing, be also provided with spring.
3. crosslinked formula curved beam bridges combination shrinkage joint as claimed in claim 1, it is characterized in that, described metallic sheet stock adopts copper sheet or galvanized steel plain sheet, plays the effect of preventing dust foreign matter and draining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014672.9A CN105442440A (en) | 2015-12-31 | 2015-12-31 | Cross-linking-type curved-beam-bridge combined expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014672.9A CN105442440A (en) | 2015-12-31 | 2015-12-31 | Cross-linking-type curved-beam-bridge combined expansion joint |
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| Publication Number | Publication Date |
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| CN105442440A true CN105442440A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511014672.9A Pending CN105442440A (en) | 2015-12-31 | 2015-12-31 | Cross-linking-type curved-beam-bridge combined expansion joint |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894335A (en) * | 2017-04-25 | 2017-06-27 | 中国冶集团有限公司 | Modulus bridge expansion device and its installation method |
| CN107083742A (en) * | 2017-06-13 | 2017-08-22 | 山东大学 | Rubber and steel plate combination modulus type bridge floor damping expanded joint structure and application method |
| CN108755986A (en) * | 2018-08-27 | 2018-11-06 | 卢凌凌 | Expanded joint structure is built in a kind of room |
| CN108842560A (en) * | 2018-06-26 | 2018-11-20 | 中国冶集团有限公司 | Concrete road surface and its construction method with expansion joint (E.J.) telescopic device |
| CN111287077A (en) * | 2020-03-05 | 2020-06-16 | 顾轩波 | Height-adjustable bridge expansion joint component capable of realizing transverse connection |
| CN113136796A (en) * | 2021-04-30 | 2021-07-20 | 重庆交通大学 | Reset type bridge expansion joint device |
| CN114016402A (en) * | 2021-12-15 | 2022-02-08 | 张绅 | Assembled bridge butt joint expansion joint structure and prevent blocking drainage mechanism thereof |
| CN114592623A (en) * | 2022-04-01 | 2022-06-07 | 中交第四航务工程勘察设计院有限公司 | Curtain wall connecting device capable of freely deforming in three directions under wide deformation joint and being continuous in vertical surface |
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| US4087191A (en) * | 1977-01-31 | 1978-05-02 | Felt Products Mfg. Co. | Large motion expansion joint |
| CN2174498Y (en) * | 1993-08-30 | 1994-08-17 | 廖祖泉 | Durable waterproof, anti-dust, and antivibrating expansion apparatus for road bridge |
| CN201567527U (en) * | 2009-11-27 | 2010-09-01 | 成都市虹筑路桥机械有限公司 | Double-joint super-shallow buried profile steel bridge expansion device |
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| CN205474814U (en) * | 2015-12-31 | 2016-08-17 | 中国一冶集团有限公司 | Crosslinked formula camber beam bridge combine telescope seam |
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2015
- 2015-12-31 CN CN201511014672.9A patent/CN105442440A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4087191A (en) * | 1977-01-31 | 1978-05-02 | Felt Products Mfg. Co. | Large motion expansion joint |
| CN2174498Y (en) * | 1993-08-30 | 1994-08-17 | 廖祖泉 | Durable waterproof, anti-dust, and antivibrating expansion apparatus for road bridge |
| CN201567527U (en) * | 2009-11-27 | 2010-09-01 | 成都市虹筑路桥机械有限公司 | Double-joint super-shallow buried profile steel bridge expansion device |
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| CN103711074A (en) * | 2013-12-31 | 2014-04-09 | 成都市新筑路桥机械股份有限公司 | Gapless-type large-displacement highway foot-bridge expansion device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894335A (en) * | 2017-04-25 | 2017-06-27 | 中国冶集团有限公司 | Modulus bridge expansion device and its installation method |
| CN107083742A (en) * | 2017-06-13 | 2017-08-22 | 山东大学 | Rubber and steel plate combination modulus type bridge floor damping expanded joint structure and application method |
| CN107083742B (en) * | 2017-06-13 | 2024-01-26 | 山东大学 | Rubber and steel plate combined modular bridge deck damping expansion joint structure and use method thereof |
| CN108842560A (en) * | 2018-06-26 | 2018-11-20 | 中国冶集团有限公司 | Concrete road surface and its construction method with expansion joint (E.J.) telescopic device |
| CN108755986A (en) * | 2018-08-27 | 2018-11-06 | 卢凌凌 | Expanded joint structure is built in a kind of room |
| CN111287077A (en) * | 2020-03-05 | 2020-06-16 | 顾轩波 | Height-adjustable bridge expansion joint component capable of realizing transverse connection |
| CN111287077B (en) * | 2020-03-05 | 2021-08-24 | 顾轩波 | Height-adjustable bridge expansion joint component capable of realizing transverse connection |
| CN113136796A (en) * | 2021-04-30 | 2021-07-20 | 重庆交通大学 | Reset type bridge expansion joint device |
| CN113136796B (en) * | 2021-04-30 | 2022-07-19 | 重庆交通大学 | Reset type bridge expansion joint device |
| CN114016402A (en) * | 2021-12-15 | 2022-02-08 | 张绅 | Assembled bridge butt joint expansion joint structure and prevent blocking drainage mechanism thereof |
| CN114016402B (en) * | 2021-12-15 | 2024-05-03 | 沈阳汇智云创科技有限公司 | Assembled bridge butt joint expansion joint structure and prevent blocking drainage mechanism thereof |
| CN114592623A (en) * | 2022-04-01 | 2022-06-07 | 中交第四航务工程勘察设计院有限公司 | Curtain wall connecting device capable of freely deforming in three directions under wide deformation joint and being continuous in vertical surface |
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Application publication date: 20160330 |