CN114319096A - Bridge expansion joint structure - Google Patents
Bridge expansion joint structure Download PDFInfo
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- CN114319096A CN114319096A CN202210100576.XA CN202210100576A CN114319096A CN 114319096 A CN114319096 A CN 114319096A CN 202210100576 A CN202210100576 A CN 202210100576A CN 114319096 A CN114319096 A CN 114319096A
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Abstract
The invention discloses a bridge expansion joint structure, which comprises two beam bodies, wherein an expansion joint is formed between the beam bodies, a preset groove is formed in the top surface of each beam body, a cover plate is arranged between the beam bodies, the cover plate is placed in the preset groove and covers the expansion joint, a vertical buffer mechanism is arranged between the bottom surface of the cover plate and the bottom surface of the preset groove, a horizontal buffer mechanism is arranged between the side surface of the cover plate and the inner side wall of the preset groove, the cover plate is connected with the expansion joint through a support mechanism, and the support mechanism is fixed at the corner where the preset groove and the expansion joint are connected through an installation frame; a water stop is arranged below the supporting mechanism, two side edges of the water stop are inserted into the beam inlet body and cover the expansion joint; according to the scheme, the horizontal buffer mechanism and the vertical buffer mechanism are arranged to support the cover plate, and simultaneously play roles in damping and buffering and stabilizing the position of the cover plate, so that the cover plate is prevented from being misplaced and deviated; through setting up stagnant water and drainage structures, carry out abundant separation and discharge to moisture, avoid during moisture infiltration advances the expansion joint.
Description
Technical Field
The invention relates to the technical field of bridge expansion joints, in particular to a bridge expansion joint structure.
Background
With the rapid development of urban construction, the development of various traffic facilities is leap forward; various bridges such as expressways, urban viaducts and the like are built in succession; the damage of the bridge expansion joint is very common because the vehicle flow, the vehicle speed and the vehicle load are continuously improved and some small problems are left in the construction of the bridge; the expansion joints of the bridge are usually arranged between two beam ends, between the beam ends and a bridge abutment or at the hinged position of the bridge in order to meet the requirement of bridge deck deformation, and are required to be freely expandable and contractible in two directions parallel to and perpendicular to the axis of the bridge at present, so that the expansion joints are firm and reliable, smooth and free from sudden jump and noise when a vehicle runs, and can also prevent rainwater and garbage and soil from permeating and blocking; therefore, the expansion joint is an important component of a bridge structure, the normal telescopic function of a beam body is guaranteed, however, under the repeated action of vehicle load and the environment, the expansion joint structure is easy to damage, the water stop belt is easy to age, the phenomena of collapse, dislocation, water leakage and the like of the beam end are caused, the defects of corrosion of a steel plate or a steel bar of the beam end, whitening of the surface of a bridge lower structure, water stain and the like are caused, sundries are filled in the beam end in serious cases, the normal telescopic function of the structure is influenced, and the structure safety is finally influenced.
Disclosure of Invention
The invention aims to solve the problems that an expansion joint is easy to age, collapse, misplace and leak under the repeated action of load and environment in the prior art, and provides a bridge expansion joint structure.
The technical scheme of the invention is as follows:
the utility model provides a bridge expansion joint structure, includes the roof beam body of two adjacent and symmetries, form the expansion joint between the roof beam body, and preset groove has been seted up on the top surface of the roof beam body, a serial communication port, be provided with the apron between the roof beam body, the apron is placed in the preset groove, and cover the expansion joint, the apron bottom surface with install vertical buffer gear between the bottom surface of preset groove, the side of apron with install horizontal buffer gear between the inside wall of preset groove, be provided with between apron and the expansion joint and be used for supporting the supporting mechanism of apron.
Preferably, a rubber plate is arranged between the cover plate and the beam body, and two ends of the rubber plate are respectively fixed on the top surfaces of the beam body and the cover plate and cover the horizontal buffer mechanism.
Preferably, the horizontal buffer mechanism comprises a threaded rod and a support plate, the threaded rod is fixed on the side wall of the cover plate, and the support plate is attached to the inner side wall of the preset groove; be provided with spring A between backup pad and the threaded rod, spring A's one end and backup pad fixed connection, another pot head is established on the threaded rod, and with install tightening nut on the threaded rod contacts.
Preferably, the supporting mechanism comprises an installation sleeve and a telescopic rod which are connected in an adaptive mode, one end of the installation sleeve is provided with an inner cavity used for installing the telescopic rod, a spring B is arranged in the inner cavity, two ends of the spring B are fixed to the inner wall of the inner cavity and one end of the telescopic rod respectively, and the other end of the telescopic rod is connected with a connecting block in a sliding mode, wherein the connecting block is fixed to the center of the bottom surface of the cover plate.
Preferably, the height of the inner cavity is consistent with that of the telescopic rod, and the width of the inner cavity is larger than that of the telescopic rod.
Preferably, the mounting rack comprises a folded plate which is in an inverted L-shaped structure, and a horizontal plate of the folded plate is fixed on the bottom surface of the preset groove through a fastening screw; the foldable plate is characterized in that two symmetrical support plates are mounted on a vertical plate of the folded plate, a connecting rod is mounted between the support plates, the mounting sleeve is connected with the connecting rod through a connecting plate, and the connecting plate is rotatably sleeved on the connecting rod.
Preferably, two symmetrical side surfaces of the connecting block are provided with limiting sliding grooves, limiting sliding blocks are slidably mounted in the limiting sliding grooves, the limiting sliding blocks are rotatably connected with the end parts of the telescopic rods, and the upper end surfaces and the lower end surfaces of the limiting sliding blocks are provided with springs C.
Preferably, a water stop is arranged below the supporting mechanism, and two side edges of the water stop are inserted into the beam body and cover the expansion joint.
Preferably, symmetrically arranged plug connectors are fixed on two sides of the water stop belt, and the plug connectors are of a concave structure which is obliquely arranged; the beam body is provided with a mounting groove for being matched with and mounted with the plug connector, and the fastening screw penetrates through the bottom surfaces of the folded plate and the preset groove and then extends into the mounting groove and is fixedly mounted at the top of the plug connector.
Preferably, a drainage cavity is arranged in the cover plate, and the bottom surface of the drainage cavity is arc-shaped; a plurality of uniformly distributed leak holes are formed in the top surface of the cover plate and communicated with the drainage cavity; and a water outlet communicated with the water drainage groove is formed in the side wall of the cover plate.
The invention has the beneficial effects that:
according to the bridge expansion joint structure provided by the invention, the cover plate is supported by arranging the horizontal buffer mechanism and the vertical buffer mechanism, so that the cover plate and the top surface of the beam body are kept at the same horizontal height; the vertical buffer mechanism provides a shock absorption buffer force in the vertical direction for the cover plate, so that when a vehicle passes through the vertical buffer mechanism, the rigid contact between the cover plate and the beam body is reduced, the cover plate is prevented from being bent and broken due to stress, the service life of the cover plate is prolonged, meanwhile, the noise when the vehicle passes through is reduced, and the phenomenon of vehicle jumping is avoided; through the horizontal buffer mechanism, when the relative position between the beam bodies is changed in a bending way, the cover plate is stably supported, so that the cover plate and the beam bodies are prevented from being extruded in a bending way, and the position of the cover plate is kept stable; the supporting mechanism is arranged, so that the cover plate is further stably supported, and the cover plate is prevented from shaking or displacing due to external force factors;
according to the invention, the plug connectors are arranged on the two side edges of the water stop belt, and the mounting groove matched with the plug connectors is formed in the beam body, so that moisture can be better separated and gathered, and the moisture is prevented from permeating into the expansion joint from the mounting gap; according to the invention, the water outlet is formed on the cover plate, so that water on the cover plate can be drained and discharged in time, and the water is prevented from permeating into the expansion joint in the retention time process.
Drawings
Fig. 1 is a schematic view of the overall structure of a bridge expansion joint structure provided by the present invention;
FIG. 2 is a first schematic view of a top view of a bridge expansion joint structure used in the present invention;
FIG. 3 is a first schematic view of a connection structure of a support mechanism and a mounting frame provided by the present invention;
FIG. 4 is a second schematic view of a connection structure of a support mechanism and a mounting frame provided by the present invention;
FIG. 5 is a schematic view of a mounting bracket structure provided in the present invention;
FIG. 6 is a schematic cross-sectional view of FIG. 1;
FIG. 7 is a schematic top view of the bridge expansion joint structure of the present invention;
FIG. 8 is an enlarged view of portion A of FIG. 6;
FIG. 9 is a first schematic view of a connection block structure according to the present invention;
FIG. 10 is a second schematic diagram of a connecting block structure according to the present invention;
FIG. 11 is a schematic structural view of a limiting slider according to the present invention;
in the figure, 1, a beam body; 101. positioning holes; 102. mounting grooves; 103. presetting a groove; 104. an expansion joint;
2. a cover plate; 201. a leak hole; 202. a drainage cavity; 203. a water outlet; 204. mounting holes;
3. a vertical buffer mechanism;
4. a horizontal buffer mechanism; 401. a threaded rod; 402. a support plate; 403. a spring A; 404. tightening the nut; 405. a cavity;
5. a rubber plate; 501. fixing the bolt A; 502. a fixing bolt B;
6. a support mechanism; 601. installing a sleeve; 602. a telescopic rod; 603. a spring B; 604. a connecting plate; 605. a rotating shaft; 606. an inner cavity;
7. connecting blocks; 701. a limiting chute; 702. a limiting slide block; 703. a spring C; 704. supporting a lug; 705. a placement groove;
8. a mounting frame; 801. folded plate, 802, support plate; 803. a connecting rod; 804. a through hole; 805. fastening screws;
9. a water stop; 901. a plug-in connector.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
It is to be understood that the terms "horizontal, vertical, top, bottom, outside, inside, right and left, two sides, two ends, above, below" and the like are used in the orientations and positional relationships indicated in the drawings only for the convenience of describing the present invention and for simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention.
As shown in fig. 1 to 11, the present invention is a bridge expansion joint structure, which includes two adjacent and symmetrical beam bodies 1, an expansion joint 104 is formed between the two beam bodies 1, and a preset groove 103 is opened on the top end surface of the opposite surface of the two beam bodies 1, the horizontal height of the bottom surface of the preset groove 103 is 15-20cm lower than the horizontal height of the top surface of the beam body 1; a cover plate 2 is arranged between the two preset grooves 103, two ends of the cover plate 2 are respectively placed in the two preset grooves 103, the cover plate 2 is also positioned above the expansion joint 104, and the expansion joint 104 is completely covered by the cover plate 2, so that a vehicle can conveniently pass through the expansion joint of the bridge; in addition, a vertical buffer mechanism 3 is arranged between the bottom surface of the cover plate 2 and the bottom surface of the preset groove 103, and a plurality of horizontal buffer mechanisms 4 which are uniformly distributed at equal intervals are arranged between two side surfaces of the cover plate 2 and the inner wall of the preset groove 103; by arranging the vertical buffer mechanism 3, on one hand, the cover plate 2 is supported, so that the top surface of the cover plate 2 and the top surface of the beam body 1 keep the same horizontal height, on the other hand, the vertical buffer mechanism 3 provides a damping buffer force in the vertical direction for the cover plate 2, so that when a vehicle passes through the cover plate 2, the rigid contact between the cover plate 2 and the preset groove 103 is reduced, the cover plate 2 is prevented from being bent and broken under stress, and the service life of the cover plate 2 is prolonged; the side wall of the cover plate 2 and the inner wall of the preset groove 103 are separated and buffered by arranging the horizontal buffer mechanism 4, and meanwhile, when the relative position between the two beam bodies 1 is changed in a bending way, the horizontal buffer mechanism 4 can play a role in stably supporting the cover plate 2, so that the cover plate 2 and the preset groove 103 are prevented from being extruded in a bending way, and the service life of the cover plate 2 is further guaranteed; in addition, the cover plate 2 is connected with the expansion joint 104 through two groups of symmetrically arranged supporting mechanisms 6, the two groups of supporting mechanisms 6 are respectively fixed at the corner positions where the preset grooves 103 on the two beam bodies 1 are connected with the expansion joint 104 through the mounting frame 8, the two groups of supporting mechanisms 6 are also slidably mounted at the central position of the bottom surface of the cover plate 2, the position of the cover plate 2 is limited through the two groups of supporting mechanisms 6, meanwhile, when the two beam bodies 1 generate relative displacement, the stable support of the cover plate 2 can be ensured through the supporting mechanisms 6, and when the cover plate 2 generates shaking displacement on the beam bodies 1, the stability can still be kept; it should be noted that, in the bridge expansion joint structure of the present invention, the water stop 9 is disposed below the supporting mechanism 6, two side edges of the water stop 9 are respectively inserted and installed on the side walls of the two beam bodies 1 to separate and cover the expansion joint 104, so as to prevent moisture from entering into the expansion joint 104 and affecting the bridge base body.
Further, as shown in fig. 1, fig. 2 and fig. 6, in the embodiment of the present invention, a rubber plate 5 is installed between the cover plate 2 and the beam body 1, two ends of the rubber plate 5 are fixed on the top surfaces of the beam body 1 and the cover plate 2 through a fixing bolt a501 and a fixing bolt B502, respectively, so that the rubber plate 5 is kept fixed, and the rubber plate 5 is located above the horizontal buffer mechanism 4, and covers the horizontal buffer mechanism 4 completely, and by arranging the rubber plate 5, on one hand, the preliminary airtight and waterproof is performed on the preset groove 103 and the expansion joint 104, so as to prevent moisture from entering the preset groove 103 and the expansion joint 104, on the other hand, the rubber plate 5 is made of a rubber material and has good elasticity, and when the relative position between the two beam bodies 1 changes, the device damage caused by a rigid force is avoided; in addition, positioning holes 101 are uniformly distributed on the top surface of the beam body 1, and the positioning holes 101 are matched with the fixing bolts A501 and used for fixedly mounting the fixing bolts A501; the top surface of the cover plate 2 is provided with mounting holes 204 which are uniformly distributed, and the mounting holes 204 are matched with the fixing bolts B502 and used for fixing and mounting the fixing bolts B.
It should be noted that, as shown in fig. 1, 6 to 8, in the embodiment of the present invention, the horizontal buffer mechanism 4 includes a threaded rod 401 and a support plate 402, wherein the threaded rod 401 is horizontally disposed, and one end of the threaded rod 401 is fixed on the side wall of the cover plate 2; the side wall of the supporting plate 402 is contacted and attached with the inner side wall of the preset groove 103, a spring A403 is arranged between the supporting plate 402 and the threaded rod 401, a cavity 405 for placing the spring A403 is formed in the supporting plate 402, one end of the spring A403 extends into the cavity 405 and is fixedly connected with the inner side wall of the cavity 405, and the other end of the spring A403 is sleeved on the threaded rod 401 and is contacted with an adjusting nut 404 arranged on the threaded rod 401; the adjusting nut 404 is in threaded connection with the threaded rod 401, the position of the adjusting nut 404 on the threaded rod 401 is adjusted by rotating the adjusting nut 404, the initial compression amount of the spring A403 is adjusted, and the initial elasticity of the spring A403 is adjusted to meet the installation requirements of bridge expansion joints with different intervals; in addition, in the embodiment of the invention, the vertical buffer mechanism 3 is an air spring which is vertically arranged, the air spring can carry out accurate height control by adjusting the internal air pressure, so that the horizontal height of the cover plate 2 can be accurately positioned, and the air spring avoids the phenomenon that the traditional steel spring can generate self-vibration when receiving impact, thereby achieving a better shock absorption effect and ensuring that the installation stability of the cover plate 2 is better.
Further, as shown in fig. 1 to 6, in the embodiment of the present invention, the supporting mechanism 6 includes a mounting sleeve 601 and a telescopic rod 602, which are connected in a fitting manner, wherein an inner cavity 606 for mounting the telescopic rod 602 is opened at one end of the mounting sleeve 601, and the width of the inner cavity 606 is 20-30mm greater than that of the telescopic rod 602, and one end of the telescopic rod 602 extends into the inner cavity 606 and is capable of sliding in the inner cavity 606 with a small displacement; in addition, a spring B603 is further arranged in the cavity 606, the spring B603 is arranged along the length direction of the cavity 606, two ends of the spring B603 are respectively fixed to the bottom surface of the cavity 606 and one end of the telescopic rod 602, and by arranging the spring B603, when the telescopic rod 602 and the mounting sleeve 601 are displaced relatively, a buffering and shock-absorbing effect is achieved between the telescopic rod 602 and the cavity 606, and meanwhile, a tensile force resetting effect is also provided, so that the position relation between the telescopic rod 602 and the mounting sleeve 601 is kept in a constant state under the condition of no external force; in addition, the other end of the telescopic rod 602 is slidably mounted with the connecting block 7 fixed at the center of the bottom surface of the cover plate 2, and the position of the telescopic rod 602 is limited by the connecting block 7, so that the cover plate 2 is prevented from being supported and buffered due to falling off of the telescopic rod 602.
It should be noted that, as shown in fig. 4 and 5, in the embodiment of the present invention, the mounting frame 8 includes a folded plate 801, the folded plate 801 has an inverted "L" shape, and the inward folded angle of the folded plate 801 is disposed corresponding to the corner where the pre-groove 103 and the expansion joint 104 meet; in addition, the horizontal plate at the top of the folded plate 801 is fixed on the bottom surface of the preset groove 103 through a fastening screw 805, so that the side vertical plate of the folded plate 801 is positioned in the expansion joint 104 and is tightly attached to the inner wall of the beam body 1; in addition, two symmetrically arranged support plates 802 are arranged on the vertical plate of the folded plate 801, the support plates 802 are horizontally arranged, and the support plates 802 are perpendicular to the vertical plate of the folded plate 801; a connecting rod 803 is installed between the two support plates 802, the connecting rod 803 is horizontally arranged, two ends of the connecting rod 803 are respectively fixed on the two support plates 802, the installation sleeve 601 is rotatably installed on the connecting rod 803 through a connecting plate 604, one end face of the connecting plate 604 is fixed on the installation sleeve 601, the other end of the connecting plate 604 is sleeved on the connecting rod 803 and is rotatably connected with the connecting rod 803, and the installation sleeve 601 and the telescopic rod 602 rotate through the axial rotation of the connecting plate 604 along the connecting rod 803.
It should be further explained that, as shown in fig. 9 to 11, in the specific embodiment of the present invention, the connecting block 7 is a vertically arranged rectangular parallelepiped structure, the two symmetrical lateral surfaces at the left and right of the connecting block 7 are both provided with the limiting sliding grooves 701, the limiting sliding grooves 701 are vertically arranged, and the horizontal cross-sectional shape of the limiting sliding grooves 701 is a "convex" structure; in addition, a limiting slide block 702 is arranged in the limiting slide groove 701, the limiting slide block 702 is matched with the limiting slide groove 701 and is slidably installed in the limiting slide groove 701, and the limiting slide block 702 can vertically move up and down along the limiting slide groove 701; in addition, a support lug 704 and a placement groove 705 are arranged on the side wall of the limit sliding block 702, a horizontally arranged rotating shaft 605 is fixed at the end part of the telescopic rod 602, and the rotating shaft 605 passes through the support lug 704 and is installed in the placement groove 705 so as to realize the relative rotation between the telescopic rod 602 and the limit sliding block 702; in addition, all fixed mounting has spring C703 on the top surface and the bottom surface of spacing slider 702, and spring C703 is vertical to be set up for play the cushioning effect when sliding in spacing spout 701 to spacing slider 702, avoid causing the damage to the device surface because of the impact force is too big, improve the life of device.
Further, as shown in fig. 6, in the embodiment of the present invention, the two sides of the water stop 9 are fixed with the connectors 901, the connectors 901 are symmetrically arranged, and the connectors 901 and the body of the water stop 9 are designed to be integrally formed, wherein, the body of the water stop 9 is arc-shaped, the plug 901 is a concave structure which is arranged obliquely, the inclination angle is 90 degrees, and the inner side wall of the beam body 1 is provided with a mounting groove 102 for mounting the plug 901, the shape of the mounting groove 102 is consistent with that of the plug 901, and the plug 901 is installed in a matching way with the installation groove 102, the bottom end of the fastening screw 805 penetrates through the beam body 1 after being driven into the top surface of the preset groove 103, the bottom end of the fastening screw 805 extends into the installation groove 102 and is installed on the top surface of the plug 901, the position between the plug 901 and the mounting groove 102 is fixed by a fastening screw 805; through the integrally formed plug 901 and the water stop 9, moisture permeating into the expansion joint is blocked and is collected on the water stop 9, and the plug 901 with the inverted concave structure prevents the moisture from continuously permeating from a gap between the plug 901 and the mounting groove 102, so that the overall water blocking effect of the water stop 9 is improved.
Furthermore, as shown in fig. 1 and fig. 6, in the embodiment of the present invention, a drainage cavity 202 is disposed inside the cover plate 2, a bottom surface of the drainage cavity 202 is an arc-shaped surface structure, and an arc surface of the drainage cavity is downwardly convex, so as to facilitate water collection; in addition, a plurality of uniformly distributed leak holes 201 are formed in the top surface of the cover plate 2, the leak holes 201 penetrate through the top surface of the cover plate 201 and then are communicated with the drainage cavity 202, so that water enters the drainage cavity 202 through the leak holes 201 to be collected; in addition, a plurality of water outlets 203 communicated with the water drainage groove 202 are further formed in the side wall of the cover plate 2, and the water outlets 203 are distributed along the bottom surface of the water drainage cavity 202 in an arc line and at equal intervals and are used for discharging water in the water drainage cavity 202 from the two ends of the cover plate 2 so as to prevent the water from entering the expansion joint.
The foregoing description of the specific embodiments of the present invention has been presented for the purposes of illustration and description and is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching, the examples having been selected and described for the purpose of illustrating the particular principles of the invention and the practical application, thereby enabling others skilled in the art to make and use various embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a bridge expansion joint structure, includes two adjacent and symmetrical roof beam bodies (1), form expansion joint (104) between the roof beam body (1), and preset groove (103) have been seted up on the top surface of roof beam body (1), a serial communication port, be provided with apron (2) between the roof beam body (1), apron (2) are placed in preset groove (103), and cover expansion joint (104), apron (2) bottom surface with install vertical buffer gear (3) between the bottom surface of preset groove (103), the side of apron (2) with install horizontal buffer gear (4) between the inside wall of preset groove (103), be provided with between apron (2) and expansion joint (104) and be used for supporting the supporting mechanism (6) of apron (2).
2. The bridge expansion joint structure of claim 1, wherein a rubber plate (5) is installed between the cover plate (2) and the beam body (1), and two ends of the rubber plate (5) are respectively fixed on the top surfaces of the beam body (1) and the cover plate (2) and cover the horizontal buffer mechanism (4).
3. A bridge expansion joint structure according to claim 1, wherein the horizontal buffer mechanism (4) comprises a threaded rod (401) and a support plate (402), the threaded rod (401) is fixed on the side wall of the cover plate (2), and the support plate (402) is attached to the inner side wall of the preset groove (103); be provided with spring A (403) between backup pad (402) and threaded rod (401), the one end and backup pad (402) fixed connection of spring A (403), the other pot head is established on threaded rod (401) to with install tighten nut (404) on threaded rod (401) contact.
4. The bridge expansion joint structure according to claim 1, wherein the support mechanism (6) comprises a mounting sleeve (601) and a telescopic rod (602) which are connected in an adaptive manner, an inner cavity (606) for mounting the telescopic rod (602) is formed in one end of the mounting sleeve (601), a spring B (603) is arranged in the inner cavity (606), two ends of the spring B (603) are respectively fixed on the inner wall of the inner cavity (606) and one end of the telescopic rod (602), and the other end of the telescopic rod (602) is slidably connected with a connecting block (7) fixed on the center of the bottom surface of the cover plate (2).
5. A bridge expansion joint structure according to claim 4, wherein the height of said internal cavity (606) is the same as the height of said telescopic rod (602), and the width of said internal cavity (606) is larger than the width of said telescopic rod (602).
6. A bridge expansion joint structure according to claim 4, characterized in that the mounting rack (8) comprises a flap (801), the flap (801) is in an inverted L-shaped structure, the horizontal plate of the flap (801) is fixed on the bottom surface of the preset groove (103) through a fastening screw (805); two symmetrical support plates (802) are arranged on a vertical plate of the folded plate (801), a connecting rod (803) is arranged between the support plates (802), the installation sleeve (601) is connected with the connecting rod (803) through a connecting plate (604), and the connecting plate (604) is rotatably sleeved on the connecting rod (803).
7. The bridge expansion joint structure of claim 4, wherein two symmetrical side surfaces of the connecting block (7) are respectively provided with a limiting sliding groove (701), a limiting sliding block (702) is slidably mounted in the limiting sliding groove (701), the limiting sliding block (702) is rotatably connected with the end part of the telescopic rod (602), and the upper end surface and the lower end surface of the limiting sliding block (702) are respectively provided with a spring C (703).
8. The bridge expansion joint structure of claim 6, wherein a water stop (9) is arranged below the supporting mechanism (6), and two sides of the water stop (9) are inserted into the beam body (1) and cover the expansion joint (104).
9. The bridge expansion joint structure of claim 8, wherein symmetrically arranged plug connectors (901) are fixed on two sides of the water stop (9), and the plug connectors (901) are in an obliquely arranged concave structure; the beam body (1) is provided with a mounting groove (102) for being matched with and mounting the plug connector (901), and the fastening screw (805) penetrates through the bottom surfaces of the folded plate (801) and the preset groove (103), extends into the mounting groove (102), and is fixedly mounted at the top of the plug connector (901).
10. The bridge expansion joint structure according to claim 1, wherein a drainage cavity (202) is arranged in the cover plate (2), and the bottom surface of the drainage cavity (202) is arc-shaped; a plurality of uniformly distributed leak holes (201) are formed in the top surface of the cover plate (2), and the leak holes (201) are communicated with the drainage cavity (202); and a water outlet (203) communicated with the water drainage groove (202) is formed in the side wall of the cover plate (2).
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|---|---|---|---|
| CN202210100576.XA CN114319096A (en) | 2022-01-27 | 2022-01-27 | Bridge expansion joint structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210100576.XA CN114319096A (en) | 2022-01-27 | 2022-01-27 | Bridge expansion joint structure |
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| CN114319096A true CN114319096A (en) | 2022-04-12 |
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