Bridge seamless expansion joint structure
By designing components such as arc grooves and arc plate sliding connections, support wheels and compression springs, the bridge is seamlessly expanded and contracted, solving the problem of gaps in traditional expansion joints, and enhancing structural stability and deformation compensation capabilities.
Patent Information
- Application Number
- CN202411389264.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2024-12-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The expansion joints of traditional bridges inevitably appear during the expansion process, making seamless expansion and contraction impossible, which affects structural stability and deformation compensation effect.
A seamless expansion joint structure of bridges is designed, using a sliding connection between arc grooves and arc plates, combined with supporting wheels, compression springs and vertical grooves, to ensure that arc plates maintain stable displacement during expansion and contraction, and avoid gap formation. It is closely combined with the bridge concrete through connecting plates, hook plates and springs to ensure seamless expansion and contraction.
The bridge is seamlessly stretched and retracted under temperature changes and load conditions, avoiding the generation of gaps, enhancing the stability of the structure and deformation compensation ability, and ensuring the safety of the bridge's long-term use.
Smart Images
Figure CN119121781A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of bridge expansion joints, and more particularly to a seamless bridge expansion joint structure. Background Art
[0002] Bridge expansion joints are an important part of bridge structures, mainly used to adapt to the deformation and displacement of bridges caused by temperature changes, bridge loads and other factors. The functions of expansion joints include:
[0003] Compensating for deformation: As the temperature changes, the material of the bridge will expand or contract. Expansion joints can effectively compensate for these deformations and avoid structural damage caused by excessive deformation.
[0004] Maintaining structural stability: Expansion joints can reduce the interaction between the various parts of the bridge and reduce the impact of vibration caused by traffic or other factors on the bridge structure. Traditional bridge expansion joints inevitably have gaps and cannot achieve seamless expansion. Summary of the invention
[0005] In order to overcome the deficiencies of the prior art, the present invention provides a seamless expansion joint structure for a bridge, which has the beneficial effect of preventing gaps from appearing during expansion and contraction.
[0006] A seamless expansion joint structure for a bridge comprises seat blocks, wherein two seat blocks are arranged on the left and right, arc grooves are arranged on opposite sides of the seat blocks, and two ends of the arc piece are respectively slidably connected to the two arc grooves.
[0007] A plurality of retaining screws are threadedly connected to the front and rear sides of the seat block, and the retaining screws are retained on the side surfaces of the arc-shaped piece.
[0008] A supporting wheel is arranged on the lower side of the arc-shaped piece, and the front and rear ends of the supporting wheel are respectively rotatably connected to the middle parts of the two transverse columns, and the two ends of each transverse column are respectively slidably connected to the two seat blocks.
[0009] Round pieces are fixed at both ends of each transverse column, and compression springs are sleeved at both ends of the transverse column. The compression springs are located between the seat block and the round piece.
[0010] The middle parts of the two seat blocks are both provided with vertical grooves, and the left and right ends of the arc-shaped piece are both fixed with vertical bars, and the two vertical bars are respectively inserted into the two vertical grooves.
[0011] A connecting plate is fixed on the outer side of the seat block, a groove piece is fixed on the outer side of the connecting plate, and a plurality of columns are fixed on the groove piece from front to back.
[0012] A plurality of convex edges are fixed on the connecting plate, a supporting plate is fixed on the groove member, and the other end of the supporting plate is fixed on the seat block.
[0013] It also includes a hook plate, which is provided with a hook portion, and the hook plate is hooked on the cylinder through the hook portion. Each cylinder is provided with a hook plate, and the hook portion is threadedly connected with a hand screw, and the hand screw is blocked on the cylinder. A spring is welded on the hook plate.
[0014] It also includes a strip plate, on which a plurality of round seats are fixed from front to back, the plurality of round seats are respectively arranged at the outer ends of a plurality of hook plates, the outer ends of the hook plates are threadedly connected with pins, and the pins pass through the round seats.
[0015] A wheel frame is fixed on the lower side of each seat block, a rotating wheel is rotatably connected to the wheel frame, convex rings are fixed to the front and rear ends of the rotating wheel, strip grooves are arranged at the front and rear ends of the base frame, and the two convex rings on the rotating wheel are respectively inserted into the two strip grooves. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0017] Figure 1 A structural diagram of a seamless expansion joint structure for a bridge Figure 1 ;
[0018] Figure 2 A structural diagram of a seamless expansion joint structure for a bridge Figure 2 ;
[0019] Figure 3 A structural diagram of a seamless expansion joint structure for a bridge Figure 3 ;
[0020] Figure 4 The structure of the seat block is shown in Figure 1. Figure 1 ;
[0021] Figure 5 The structure of the seat block is shown in Figure 1. Figure 2 ;
[0022] Figure 6 The structure of the arc piece Figure 1 ;
[0023] Figure 7 The structure of the arc piece Figure 2 ;
[0024] Figure 8 Schematic diagram of the structure of the slot Figure 1 ;
[0025] Fig. 9 Schematic diagram of the structure of the slot Figure 2 ;
[0026] Fig.10 The structure of the hook is shown in Figure 1. Figure 1 ;
[0027] Fig.11 The structure of the hook is shown in Figure 1. Figure 2 ;
[0028] Fig.12 This is a structural diagram of the chassis.
[0029] In the figure: seat block 101; arc groove 102; retaining screw 103; horizontal column 104; support wheel 105; vertical groove 106; disc 107;
[0030] Curved piece 201; vertical strip 202;
[0031] Groove 301; cylinder 302; ridge 303; connecting plate 304; supporting plate 305;
[0032] Hook 401; hook plate 402; pin 403; strip plate 404; round seat 405; spring 406; thumb screw 407;
[0033] Base frame 501; strip groove 502; rotating wheel 503; convex ring 504; wheel frame 505. DETAILED DESCRIPTION
[0034] like Figure 4-5 As shown, this example can achieve the effect of avoiding gaps when the bridge expands and contracts.
[0035] Since the seamless expansion joint structure of the bridge includes a seat block 101, two of the seat blocks 101 are arranged on the left and right, and arc grooves 102 are arranged on opposite sides of the seat blocks 101. The two ends of the arc piece 201 are respectively slidably connected to the two arc grooves 102. When the bridge is expanded or contracted, the distance between the two seat blocks 101 changes. At this time, the arc piece 201 slides on the two arc grooves 102 to adapt to the change in the distance between the two seat blocks 101, thereby avoiding the generation of gaps when the bridge is expanded or contracted.
[0036] like Figure 4-7 As shown, this example can achieve the effect of preventing the arc-shaped sheet 201 from sliding out from the front and rear sides of the arc-shaped groove 102 .
[0037] Since the front and rear sides of the seat block 101 are both threadedly connected with multiple stop screws 103, the stop screws 103 block the sides of the arc piece 201, and the stop screws 103 prevent the arc piece 201 from sliding forward and backward relative to the arc groove 102, thereby preventing the arc piece 201 from sliding out from the front and rear sides of the arc groove 102.
[0038] like Figure 4-7 As shown, this example can achieve the effect that the supporting wheel 105 is always supported on the lower side of the arc-shaped piece 201 .
[0039] Since a support wheel 105 is provided on the lower side of the arc-shaped piece 201, the front and rear ends of the support wheel 105 are respectively rotatably connected to the middle part of the two cross columns 104, and the two ends of each cross column 104 are respectively slidably connected to the two seat blocks 101. The support wheel 105 is always supported on the lower side of the arc-shaped piece 201 to prevent the arc-shaped piece 201 from being deformed too much when being pressed. When the distance between the two seat blocks 101 changes, the two seat blocks 101 will slide accordingly on the cross column 104.
[0040] like Figure 4-5 As shown, this example can achieve the effect of keeping the supporting wheel 105 centered between the two seat blocks 101 at all times.
[0041] Since both ends of each of the cross columns 104 are connected with discs 107 by screws, both ends of the cross columns 104 are sleeved with compression springs, and the compression springs are located between the seat blocks 101 and the discs 107. The compression springs give elastic force to the discs 107 at both ends of the cross columns 104, so that the cross columns 104 always remain centered on the two seat blocks 101, and the support wheels 105 always remain centered between the two seat blocks 101.
[0042] like Figure 4-7 As shown, this example can achieve the effect of preventing the arc-shaped sheet 201 from sliding out of the arc-shaped groove 102.
[0043] Since the middle part of the two seat blocks 101 is provided with a vertical groove 106, vertical bars 202 are fixed on the left and right ends of the arc-shaped piece 201, and the two vertical bars 202 are respectively inserted into the two vertical grooves 106. By inserting the vertical bars 202 into the vertical grooves 106, the arc-shaped piece 201 is prevented from slipping out of the arc-shaped groove 102, and the arc-shaped piece 201 is prevented from sliding left and right and detaching from the corresponding arc-shaped groove 102.
[0044] like Figure 4-9 As shown, this example can achieve the effect of connecting a seamless expansion joint structure to the bridge body.
[0045] Since a connecting plate 304 is welded to the outer side of the seat block 101, a groove member 301 is welded to the outer side of the connecting plate 304, and multiple cylinders 302 are welded on the groove member 301 from front to back, the groove member 301 is connected to the outer side of the seat block 101 through the connecting plate 304, and the concrete on the bridge can be connected through the groove member 301, thereby connecting the seamless expansion joint structure to the bridge body.
[0046] like Figure 4-9 As shown, this example can achieve the effect of preventing the upper side of the connecting plate 304 from slipping when a vehicle passes by.
[0047] Since multiple ridges 303 are welded on the connecting plate 304, a support plate 305 is fixed on the groove member 301, and the other end of the support plate 305 is fixed on the seat block 101, the support plate 305 makes the connection between the groove member 301 and the seat block 101 tighter, and the multiple ridges 303 make the upper side of the connecting plate 304 have an anti-slip effect, thereby preventing the upper side of the connecting plate 304 from slipping when a vehicle passes by.
[0048] like Figure 10-11 As shown, this example can achieve the effect of perfectly combining the concrete and seamless expansion joint structure on the bridge.
[0049] Since the seamless expansion joint structure of the bridge also includes a hook plate 402, the hook plate 402 is provided with a hook portion 401, and the hook plate 402 is hooked on the cylinder 302 through the hook portion 401, each cylinder 302 is provided with a hook plate 402, and the hook portion 401 is threadedly connected with a hand screw 407, and the hand screw 407 is blocked on the cylinder 302, and a spring 406 is welded on the hook plate 402. Multiple hook plates 402 can be connected to the groove 301 through multiple cylinders 302, and then the hook plate 402 and the spring 406 thereon are buried in the concrete on the bridge, so that the concrete on the bridge and the seamless expansion joint structure are perfectly combined.
[0050] like Figure 10-11 As shown, this example can achieve the effect of making multiple hook plates 402 in the concrete of the bridge serve as a supporting structure of the concrete.
[0051] Since the seamless expansion joint structure of the bridge also includes a strip plate 404, a plurality of round seats 405 are fixed on the strip plate 404 from front to back, and the plurality of round seats 405 are respectively arranged at the outer end positions of the plurality of hook plates 402, and the outer end of the hook plate 402 is threadedly connected with a pin 403, and the pin 403 passes through the round seat 405, and the hook plate 402 and the round seat 405 are connected by the pin 403 passing through the round seat 405, and then the strip plate 404 is connected to the plurality of hook plates 402, and is supported between the plurality of hook plates 402 by the strip plate 404, so that the plurality of hook plates 402 remain parallel to each other, so that the plurality of hook plates 402 serve as a supporting structure of concrete in the concrete of the bridge, and effectively support the bridge.
[0052] like Figure 1-12 As shown, this example can achieve the effect of effectively supporting two movable seat blocks 101 through the base frame 501.
[0053] Since a wheel frame 505 is welded to the lower side of each seat block 101, a rotating wheel 503 is rotatably connected to the wheel frame 505, convex rings 504 are welded to the front and rear ends of the rotating wheel 503, and strip grooves 502 are arranged at the front and rear ends of the base frame 501. The two convex rings 504 on the rotating wheel 503 are respectively inserted into the two strip grooves 502. When the bridge is extended or retracted, the seat block 101 is driven to move left and right, so that the seat block 101 rolls left and right on the base frame 501 through the rotating wheel 503 on its lower side. The convex ring 504 is inserted into the strip groove 502 to prevent the rotating wheel 503 from moving forward and backward relative to the base frame 501, and the two movable seat blocks 101 are effectively supported by the base frame 501.
Claims
1. A seamless expansion joint structure for a bridge, comprising a seat block (101), Features: The two seat blocks (101) are arranged on the left and right, and arc grooves (102) are arranged on opposite sides of the seat blocks (101), and the two ends of the arc sheet (201) are respectively slidably connected to the two arc grooves (102).
2. A bridge seamless expansion joint structure according to claim 1, Features: A plurality of retaining screws (103) are threadedly connected to both the front and rear sides of the seat block (101), and the retaining screws (103) are retained on the side surfaces of the arc-shaped piece (201).
3. A bridge seamless expansion joint structure according to claim 2, Features: A support wheel (105) is provided on the lower side of the arc-shaped piece (201), and the front and rear ends of the support wheel (105) are rotatably connected to the middle of the two transverse columns (104), and the two ends of each transverse column (104) are slidably connected to the two seat blocks (101).
4. A bridge seamless expansion joint structure according to claim 3, Features: A disc (107) is fixed at both ends of each transverse column (104), and a compression spring is sleeved at both ends of the transverse column (104), and the compression spring is located between the seat block (101) and the disc (107).
5. A bridge seamless expansion joint structure according to claim 4, Features: A vertical groove (106) is provided in the middle of the two seat blocks (101), and vertical bars (202) are fixed to the left and right ends of the arc-shaped piece (201), and the two vertical bars (202) are respectively inserted into the two vertical grooves (106).
6. A bridge seamless expansion joint structure according to claim 5, Features: A connecting plate (304) is fixed on the outer side of the seat block (101), a groove member (301) is fixed on the outer side of the connecting plate (304), and a plurality of cylinders (302) are fixed on the groove member (301) from front to back.
7. A bridge seamless expansion joint structure according to claim 6, Features: A plurality of ridges (303) are fixed on the connecting plate (304), a support plate (305) is fixed on the groove member (301), and the other end of the support plate (305) is fixed on the seat block (101).
8. A bridge seamless expansion joint structure according to claim 7, Features: The invention also comprises a hook plate (402), wherein the hook plate (402) is provided with a hook portion (401), and the hook plate (402) is hooked on the cylinder (302) through the hook portion (401), and each cylinder (302) is provided with a hook plate (402), and a hand screw (407) is threadedly connected on the hook portion (401), and the hand screw (407) is blocked on the cylinder (302), and a spring (406) is welded on the hook plate (402).
9. A bridge seamless expansion joint structure according to claim 8, Features: The invention also comprises a strip plate (404) on which a plurality of round seats (405) are fixed from front to back. The plurality of round seats (405) are respectively arranged at the outer ends of the plurality of hook plates (402). The outer ends of the hook plates (402) are threadedly connected with inserting pins (403), and the inserting pins (403) pass through the round seats (405).
10. A seamless expansion joint structure for a bridge according to claim 9, Features: A wheel frame (505) is fixed on the lower side of each seat block (101), a rotating wheel (503) is rotatably connected to the wheel frame (505), convex rings (504) are fixed to the front and rear ends of the rotating wheel (503), and strip grooves (502) are arranged at the front and rear ends of the bottom frame (501), and the two convex rings (504) on the rotating wheel (503) are respectively inserted into the two strip grooves (502).