Telescopic device and bridge expansion joint structure
By incorporating a combination of anchors, expansion joint holes, and waterstops within the bridge expansion joints, the stability and waterproofing of the bridge expansion joint system are addressed, thereby enhancing the safety and durability of the bridge.
Patent Information
- Application Number
- CN202520511728.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Traditional bridge expansion joint devices have low stability and poor waterproof performance, leading to structural damage, increased maintenance costs, and safety hazards.
Anchors are used to fix the expansion panels, and expansion displacement holes and waterstops are set to form a grid structure, which enhances the reliability of the connection. A waterstop is set at the bottom of the expansion panel to store infiltrated water and prevent rainwater erosion.
It improves the bridge's adaptability to expansion and contraction, enhances connection reliability, reduces the risk of loosening, extends the bridge's service life, and reduces maintenance frequency and costs.
Smart Images
Figure CN223951606U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge technical field especially is related to a telescopic device and bridge expansion joint structure. BACKGROUND
[0002] In bridge construction, due to temperature change, concrete shrinkage, vehicle load impact and other factors, the bridge structure will produce telescopic deformation.
[0003] The expansion joint device in the prior art comprises a tooth-shaped structure located in the bridge expansion joint.
[0004] The applicant finds that the prior art at least has the following technical problems: the conventional expansion joint device has low stability in long-term use, and rainwater erodes the bridge structure through the tooth-shaped structure, so that the waterproof performance is poor. The expansion amount is insufficient, which limits the bridge expansion and causes structural damage; the bolt fastening system is loose, causing local damage of the expansion joint. These not only affect the normal use performance of the bridge, shorten the service life of the bridge, but also increase the maintenance cost and safety hazards. UTILITY MODEL CONTENT
[0005] The utility model discloses a telescopic device and bridge expansion joint structure to solve the technical problems of poor waterproof performance and poor stability of the bridge expansion joint device in the prior art. The preferred technical solutions in the many technical solutions provided by the utility model can produce many technical effects, which are described below.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] The telescopic device provided by the utility model comprises an anchoring piece, a telescopic panel and a water stop belt.
[0008] The anchoring piece is fixed on opposite sides of the telescopic panel and is used for fixed connection with the bridge body on both sides of the expansion joint.
[0009] The telescopic panel is provided with telescopic displacement holes, the number of the telescopic displacement holes is multiple, and the telescopic displacement holes are arranged at intervals along the length direction and / or the width direction of the telescopic panel.
[0010] The water stop belt is fixed on the anchoring pieces on both sides and is located at the bottom of the telescopic panel and is used for storing water seeping into the telescopic panel.
[0011] Preferably, the telescopic displacement holes are provided with more than two rows on the telescopic panel, each row of the telescopic displacement holes is arranged at intervals along the width direction of the telescopic panel, the number of the telescopic displacement holes in the same row is multiple, and all the telescopic displacement holes in the same row are arranged at intervals along the length direction of the telescopic panel.
[0012] Preferably, expansion ribs are formed between two adjacent expansion displacement holes in the same row, and the expansion ribs in different rows are arranged at intervals along the length direction of the expansion panel.
[0013] Preferably, the water stop belt comprises a supporting plate and a water storage groove, wherein:
[0014] The water storage groove is located between two supporting plates, and the supporting plates are fixedly connected with the corresponding anchor.
[0015] The expansion panel further comprises a panel surface part and an opening part, the expansion displacement hole is formed in the opening part, the supporting plate is located at the bottom of the opening part and is attached to the opening part, and the water storage groove is located at the bottom of the panel surface part.
[0016] Preferably, the cross section of the water storage groove is V-shaped or U-shaped.
[0017] Preferably, the supporting plate is in a straight plate structure, and the supporting plate and the water storage groove are an integral structure formed by bending a stainless steel plate.
[0018] Preferably, on the same side of the expansion panel, the number of anchor is two or more, and all the anchors are arranged at intervals along the length direction of the expansion panel.
[0019] Preferably, the anchor comprises an anchor plate, and the anchor plate is provided with a hole site.
[0020] Preferably, the expansion displacement hole is in a long strip hole structure.
[0021] The utility model provides a kind of bridge expansion joint structure, including expansion joint and the expansion device described above in the expansion joint.
[0022] The expansion device and the bridge expansion joint structure provided by the utility model have the following beneficial effects compared with the prior art: when the bridge structure is deformed due to temperature changes, concrete shrinkage, vehicle load impact and other factors, the expansion displacement hole increases or decreases, providing space for the expansion panel to expand, better meeting the complex expansion deformation requirements of the bridge, reducing damage to the bridge structure due to limited expansion. The expansion panel is a whole plate structure, which can ensure the integrity of the bridge and avoid bumps and loud noises. The anchor enhances the connection reliability of the expansion panel and the bridge, reduces the risk of loosening, reduces maintenance frequency and cost, and improves the safety and durability of the bridge. The water stop belt is located at the bottom of the expansion panel and is used to store water that penetrates into the expansion panel, preventing rainwater and other substances from penetrating into the bridge structure, greatly improving the waterproof and debris prevention effect, and effectively extending the service life of the bridge. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0024] Figure 1 is a side view of the telescopic device embodiment one;
[0025] Figure 2 is a top view of the telescopic device embodiment one;
[0026] Figure 3 is a side view of the telescopic device embodiment two;
[0027] Figure 4 is a top view of the telescopic device embodiment two;
[0028] Figure 5 is a side view of the telescopic device embodiment three;
[0029] Figure 6 is a top view of the telescopic device embodiment three.
[0030] In the figure, 1 is a telescopic panel;11 is a panel surface part;12 is an opening part;121 is a telescopic displacement hole;122 is a telescopic rib;2 is an anchoring piece;3 is a water stop;31 is a supporting plate;32 is a water storage groove. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.
[0032] In the description of the present application, it should be understood that the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] This utility model provides an expansion joint device and a bridge expansion joint structure, which can better meet the various complex expansion and contraction requirements of bridges, enhance the connection reliability between the expansion panel and the bridge, and prevent rainwater and other substances from seeping into the bridge structure.
[0035] The following is combined Figures 1-6 The technical solution provided by this utility model will be described in more detail.
[0036] Example 1:
[0037] The expansion joint device provided by this utility model includes anchors 2, expansion panels 1, and waterstops 3, wherein: the anchors 2 are fixed on opposite sides of the expansion panels 1 for fixed connection with the bridge bodies on both sides of the expansion joint; the expansion panels 1 are provided with multiple expansion displacement holes 121, which are spaced apart along the length and / or width of the expansion panels 1; the waterstops 3 are fixed on the anchors 2 on both sides and are located at the bottom of the expansion panels 1 for storing water that seeps into the expansion panels 1.
[0038] In this embodiment, when the bridge structure undergoes expansion and contraction due to factors such as temperature changes, concrete shrinkage, and vehicle load impact, the expansion displacement hole 121 increases or decreases, providing space for the expansion and contraction of the expansion panel 1. This better meets the various complex expansion and contraction requirements of the bridge and reduces damage to the bridge structure caused by restricted expansion and contraction. The expansion panel 1 is an integral panel structure, which ensures the integrity of the bridge and avoids bumps and excessive noise.
[0039] Anchor 2 enhances the connection reliability between the expansion joint 1 and the bridge, reduces the risk of loosening, reduces maintenance frequency and cost, and improves the safety and durability of the bridge.
[0040] The waterstop 3 is located at the bottom of the expansion joint panel 1 and is used to store water that seeps into the expansion joint panel 1, preventing rainwater and other substances from seeping into the bridge structure. This greatly improves the waterproof and debris-proof effect and effectively extends the service life of the bridge.
[0041] As an optional implementation, see Figure 2 , Figure 4and Figure 6 As shown in FIG. 1, FIG. 2 and FIG. 3, the telescopic displacement holes 121 are arranged in two or more rows on the telescopic panel 1, the telescopic displacement holes 121 in the same row are arranged along the width direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same row is multiple, and all the telescopic displacement holes 121 in the same row are arranged along the length direction of the telescopic panel 1.
[0042] As an optional embodiment, referring to FIG. 4, FIG. 5 and FIG. 6, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1. Figure 2 Figure 4 As an optional embodiment, referring to FIG. 7, FIG. 8 and FIG. 9, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1. Figure 6 As shown in FIG. 1, FIG. 2 and FIG. 3, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1.
[0043] As an optional embodiment, referring to FIG. 4, FIG. 5 and FIG. 6, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1.
[0044] Figure 1 As an optional embodiment, referring to FIG. 7, FIG. 8 and FIG. 9, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1. Figure 3 Figure 5 As shown in FIG. 1, FIG. 2 and FIG. 3, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1.
[0045] As shown in FIG. 1, FIG. 2 and FIG. 3, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1.
[0046] As an optional embodiment, referring to FIG. 4, FIG. 5 and FIG. 6, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1.
[0047] As an optional embodiment, referring to FIG. 7, FIG. 8 and FIG. 9, the telescopic displacement holes 121 in the same row are arranged in two or more columns, the telescopic displacement holes 121 in the same column are arranged along the length direction of the telescopic panel 1, the number of the telescopic displacement holes 121 in the same column is multiple, and all the telescopic displacement holes 121 in the same column are arranged along the width direction of the telescopic panel 1. Figure 1 Figure 3 Figure 5 As shown, the cross section of the water storage groove 32 is V-shaped.
[0048] The cross section of the water storage groove 32 is V-shaped, which can be pushed together or stretched according to the temperature change stress, that is, the width of the V-shaped structure changes, which can better adapt to the expansion and contraction deformation of the expansion device.
[0049] As an optional embodiment, as shown in Figure 1 、 Figure 3 and Figure 5 , the supporting plate 31 is a straight plate structure, and the supporting plate 31 and the water storage groove 32 are an integrated structure formed by bending a stainless steel plate.
[0050] The above-mentioned water stop belt 3 has a stable structure and does not require additional connecting structures.
[0051] As an optional embodiment, as shown in Figure 2 、 Figure 4 and Figure 6 , on the same side of the expansion panel 1, the number of anchor members 2 is two or more, and all the anchor members 2 are arranged along the length direction of the expansion panel 1.
[0052] The anchor member 2 is welded with the steel bars in the bridge body on both sides of the expansion joint, or extends into the concrete for fixation. The above-mentioned structure improves the stability of the expansion device in the expansion joint and prevents the expansion panel 1 from being separated from the expansion joint of the bridge.
[0053] As an optional embodiment, the anchor member 2 includes an anchor plate, and the anchor plate is provided with a hole position, which can reduce the self-weight of the anchor member 2 and facilitate installation.
[0054] As an optional embodiment, as shown in Figure 2 、 Figure 4 and Figure 6 , the expansion displacement hole 121 is a long strip-shaped hole structure. The length direction of the expansion displacement hole 121 is arranged along the length direction of the expansion panel 1, which is convenient for processing. When the bridge structure is deformed due to factors such as temperature change, concrete shrinkage, vehicle load impact, etc., the long strip-shaped expansion displacement hole 121 provides space for the expansion and contraction of the expansion panel 1 by increasing or decreasing, which can better meet the various complex expansion deformation requirements of the bridge.
[0055] Example 2:
[0056] As shown in Figure 3 and Figure 4 , the difference between this embodiment 2 and the embodiment 1 is that the number of rows of the expansion displacement hole 121 is different.
[0057] Example 3:
[0058] As shown in Figure 5 and Figure 6As shown, the difference between the present embodiment 3 and the embodiment 1 is that the number of rows of the telescopic displacement holes 121 is different.
[0059] Specifically, the number of the telescopic displacement holes 121 is selected according to the width of the expansion joint on the bridge.
[0060] Embodiment 4
[0061] The present embodiment provides a bridge expansion joint structure, which comprises an expansion joint and the above-mentioned telescopic device located in the expansion joint.
[0062] The bridge expansion joint structure of the present embodiment can better meet the various complex telescopic deformation requirements of the bridge by installing the above-mentioned high-strength telescopic device in the expansion joint, and improves the overall structural strength, stability and waterproof performance.
[0063] In the description of the present specification, specific features, structures or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0064] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.
[0065] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A telescoping device, characterized by, The expansion joint device comprises an anchor, an expansion panel and a water stop belt, wherein: The anchor is fixed to opposite sides of the expansion panel to be fixedly connected with the bridge on both sides of the expansion joint. The expansion panel is provided with expansion displacement holes, and the number of the expansion displacement holes is multiple. The expansion displacement holes are arranged along the length direction and / or the width direction of the expansion panel.
2. The retractor device of claim 1, wherein, The water stop belt is fixed to the anchors on both sides and is located at the bottom of the expansion panel to store water seeping into the expansion panel.
3. The retractor device of claim 1, wherein, The expansion displacement holes are arranged in two or more rows on the expansion panel.
4. The retractor of claim 1, wherein, The expansion displacement holes in the same row are arranged along the width direction of the expansion panel. The number of the expansion displacement holes in the same row is multiple. The expansion displacement holes in the same row are arranged along the length direction of the expansion panel.
5. The telescoping device of claim 4, wherein, Adjacent two expansion displacement holes in the same row form an expansion rib.
6. The telescoping device of claim 4, wherein, The expansion ribs in different rows are arranged along the length direction of the expansion panel.
7. The retractor of claim 1, wherein The water stop belt comprises a supporting plate and a water storage groove, wherein:
8. The retractor of claim 1, wherein, The water storage groove is located between two supporting plates.
9. The retractor of claim 1, wherein, The supporting plate is fixedly connected with the corresponding anchor.
10. A bridge expansion joint structure, characterized by, The expansion panel further comprises a panel surface part and an opening part. The expansion displacement holes are arranged in the opening part. The supporting plate is located at the bottom of the opening part and is attached to the opening part. The water storage groove is located at the bottom of the panel surface part. The cross section of the water storage groove is V-shaped or U-shaped. The supporting plate is a straight plate structure. The supporting plate and the water storage groove are an integral structure formed by bending a stainless steel plate. The number of the anchors on the same side of the expansion panel is two or more. All the anchors are arranged along the length direction of the expansion panel. The anchor comprises an anchor plate. The anchor plate is provided with a hole site. The expansion displacement hole is a long strip hole structure. The expansion joint device comprises an expansion joint and the expansion device according to any one of claims 1-9 located in the expansion joint.