Longitudinal y type anti-tilt and anti-seismic multi-direction displacement support with adjustable friction coefficient

Abstract

The application provides a longitudinal Y-shaped anti-overturning anti-seismic multidirectional displacement support with adjustable friction coefficient, relates to the technical field of bridge construction, and mainly aims to provide a support structure with better anti-overturning and anti-pulling functions. The longitudinal Y-shaped anti-overturning anti-seismic multidirectional displacement support with adjustable friction coefficient comprises a fixed support, a first sliding support, a second sliding support and a friction-resistant assembly. The first sliding support is in sliding connection with the fixed support and the second sliding support and the sliding paths thereof are perpendicular to each other. The friction-resistant assembly is located between the fixed support and the first sliding support and / or between the first sliding support and the second sliding support. The friction-resistant assembly comprises a first sliding piece and a second sliding piece which are in close contact with each other. The contact surfaces of the first sliding piece and the second sliding piece form a sliding plane, and the sliding plane is a smooth surface. The first sliding support is in sliding movement relative to the fixed support and / or the second sliding support through the sliding plane.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement bearing with adjustable friction coefficient. Background Technology

[0002] With the rapid development of highways and urban elevated interchanges, bridge structures have become increasingly diversified, resulting in a large number of curved bridges and ramp bridges. These bridges are typically narrow with small curve radii, generally supported by single piers, and have limited load-bearing capacity. Therefore, they are prone to overturning under significant eccentric loading. In recent years, several tragic accidents have occurred due to bridge overturning or collapse caused by eccentric loading. Bridge construction companies are actively researching ways to improve the construction of various components and implement measures to minimize the risk of such accidents.

[0003] Currently, plate rubber bearings, pot bearings, and spherical bearings are commonly used as the supporting connection structures for highway bridges in China. While each type of bearing has its unique advantages, none possess tensile or overturning resistance. However, both curved highway bridges and spanned traffic bridges require bearings with tensile and overturning resistance. For curved bridges and ramp bridges with ordinary bearings, the probability of bridge overturning is high under significant eccentric loading. Currently, bearings with tensile load capacity mainly include tension-compression pot bearings and center-tension spherical bearings. These bearings can withstand vertical compression, upward tension, and horizontal loads, basically meeting the functional requirements of bridge bearings. However, pot bearings, using rubber as the main material, are prone to aging and have a short service life. Tension-compression spherical bearings, due to their spherical center plate structure, rotate too flexibly, resulting in weak overturning resistance under excessive eccentric loading.

[0004] To address the aforementioned issues, improve the anti-overturning and anti-pull-out effects of bridges and related structures, and enhance the safety and durability of bridge structures, it is necessary to develop a new type of bearing structure. Summary of the Invention

[0005] The purpose of this invention is to provide a longitudinal Y-shaped anti-tilting and seismic multi-directional displacement bearing with adjustable friction coefficient, in order to solve the technical problems of poor anti-tilting and anti-pull-out effects and short service life of existing bridge bearings. The various technical effects of the preferred technical solutions provided by this invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a longitudinal Y-shaped anti-tilting and seismic multi-directional displacement support with adjustable friction coefficient, including a fixed support, a first sliding support, a second sliding support, and a friction-resistant component. The first sliding support is slidably connected to the fixed support and the second sliding support, and their sliding paths are perpendicular to each other.

[0008] The friction-resistant component is located between the fixed support and the first sliding support, and / or the friction-resistant component is located between the first sliding support and the second sliding support;

[0009] The wear-resistant component includes a first sliding member and a second sliding member that are in contact with each other, and the contact surfaces of the first sliding member and the second sliding member form a sliding plane, which is a smooth surface;

[0010] The first sliding support slides relative to the fixed support and / or the second sliding support via the sliding plane.

[0011] Compared with traditional support structures, the above-mentioned support structure can achieve displacement in two different directions, thus giving the support a stronger anti-eccentric load function. The above-mentioned components achieve sliding through friction-resistant components, which not only gives the support better pull-out and overturning resistance, but also gives it better friction resistance, thereby minimizing support wear and extending its service life.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] As a further improvement of the present invention, a transverse guide is formed at the upper end of the fixed support;

[0014] A first sliding support, with a transverse displacement track formed below the first sliding support, and the first sliding support is slidably connected to the transverse guide member via the transverse displacement track;

[0015] The second sliding support is slidably disposed above the first sliding support and can slide relative to the first sliding support.

[0016] As a further improvement of the present invention, the transverse guide and the fixed support are an integral structure and the cross section of the transverse guide is a T-shaped structure, and the transverse displacement track includes L-shaped tensile plates arranged opposite to each other.

[0017] The lateral guide is positioned between the relatively arranged tensile plates and can slide relative to the tensile plates.

[0018] As a further improvement of the present invention, a groove is provided on the side wall of the part of the tensile plate that contacts the transverse guide member, and the wear-resistant plate is fixedly disposed between the tensile plate and the transverse guide member through the groove.

[0019] As a further improvement of the present invention, the tensile plate is also provided with an adjustment hole identical to the groove, and the adjustment bolt is threadedly connected to the tensile plate through the adjustment hole; rotating the adjustment bolt can adjust the coefficient of friction between the transverse guide and the wear-resistant plate.

[0020] As a further improvement of the present invention, the first sliding support further includes a sliding support and a reinforcing rib plate. The sliding support is fixedly disposed on the transverse displacement track, and the reinforcing rib plate is formed outside the transverse displacement track and is fixedly connected to the sliding support and the transverse displacement track.

[0021] As a further improvement of the present invention, the sliding support is welded and fixed to the transverse displacement track.

[0022] As a further improvement of the present invention, the wear-resistant component is located between the fixed support and the first sliding support;

[0023] The first sliding member is a sliding metal plate fixedly installed on the lower surface of the sliding support, and the second sliding member is a sliding PTFE plate fixedly installed on the transverse guide and able to be in contact with the sliding metal plate.

[0024] As a further improvement of the present invention, at least two forward guide members are fixedly provided on the upper surface of the first sliding support, and the two forward guide members are parallel to each other;

[0025] The number of the second sliding supports is the same as the number of the forward guide members and they are arranged in a one-to-one correspondence. The lower surface of the second sliding support forms a forward displacement track that can slide and cooperate with the forward guide member. Any one of the second sliding supports can slide and connect with the corresponding forward guide member through the forward displacement track.

[0026] As a further improvement of the present invention, the support also includes a tensile anchor bolt, one end of which is fixedly connected to the fixed support and / or the second sliding support, and the other end is fixedly installed on the bridge span structure or pier.

[0027] Compared with the prior art, the preferred embodiment of the present invention provides the following beneficial effects:

[0028] Compared to traditional supports, the support structure provided by this technical solution allows for displacement along both lateral and longitudinal paths, thus providing a degree of flexibility for structures such as bridges using this support. Simultaneously, the sliding track structure formed by the interaction of the T-shaped guide and the L-shaped tensile plate provides excellent tensile strength and anti-overturning capabilities, ensuring the safety of the structure while allowing for flexible movement. The coefficient of friction between the wear-resistant plate and the lateral guide is adjustable via adjusting bolts. The friction-resistant components located between the fixed support, the first sliding support, and the second sliding support help reduce wear between the sliding components, making the support structure more durable. The first sliding support, together with the fixed support and the second sliding support, forms an arch-shaped structure, providing good seismic resistance, and the overall supporting force of the support is more balanced. Compared to traditional supports, the support structure provided by this invention is simple, easy to manufacture, and has a significant anti-overturning effect, making it worthy of promotion. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall cross-section of the longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient of the present invention.

[0031] Figure 2 This is a side view of the longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient of the present invention.

[0032] Figure 3 This is a top view of the overall structure of the longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient of the present invention.

[0033] Figure 4 This is a front view of the first sliding support in the longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient of the present invention.

[0034] Figure 5 yes Figure 4 Top view;

[0035] Figure 6 This is a front view of the fixed support in the longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient of the present invention.

[0036] Figure 7 yes Figure 6 Top view.

[0037] In the diagram: 1. Fixed support; 11. Lateral guide; 111. Slip-aiding PTFE plate; 2. First sliding support; 21. Lateral displacement track; 211. Tensile plate; 212. Groove; 213. Wear-resistant plate; 214. Adjusting bolt; 22. Sliding support; 23. Reinforcing rib plate; 24. Slip-aiding metal plate; 3. Second sliding support; 31. Forward displacement track; 4. Forward guide; 5. Tensile anchor bolt. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] This invention provides a longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient, such as... Figures 1-3As shown, it includes three parts: a fixed support 1, a first sliding support 2, and a second sliding support 3. The first sliding support 2 is slidably connected to the fixed support 1 and the second sliding support 3, and their sliding paths are perpendicular to each other. The friction-resistant component is located between the fixed support 1 and the first sliding support 2, and / or, the friction-resistant component is located between the first sliding support 2 and the second sliding support 3.

[0043] The arrangement and quantity of the aforementioned abrasion-resistant components can be flexibly adjusted as needed.

[0044] Specifically, the friction-resistant component includes a first sliding member and a second sliding member that are in contact with each other. The contact surfaces of the first sliding member and the second sliding member form a sliding plane, which is a smooth surface. In use, the first sliding support 2 can slide relative to the fixed support 1 and / or the second sliding support 3 via the sliding plane.

[0045] Compared with traditional support structures, the above-mentioned support structure can achieve displacement in two different directions, thus giving the support a stronger anti-eccentric load function. The above-mentioned components achieve sliding through friction-resistant components, which not only gives the support better pull-out and overturning resistance, but also gives it better friction resistance, thereby minimizing support wear and extending its service life.

[0046] In this embodiment and other similar embodiments, a transverse guide 11 is formed at the upper end of the fixed support 1, and a transverse displacement track 21 is formed below the first sliding support 2. The first sliding support 2 is slidably connected to the transverse guide 11 via the transverse displacement track 21. The second sliding support 3 is slidably disposed above the first sliding support 2 and can slide relative to the first sliding support 2.

[0047] In this embodiment, to ensure that the lateral guide 11 can slide relative to the lateral displacement track 21 without detaching, the lateral guide 11 and the fixed support 1 are to be an integral structure, and the cross-section of the lateral guide 11 is a T-shaped structure, such as... Figure 6 As shown, the lateral displacement track 21 includes L-shaped tensile plates 211 arranged opposite to each other, as... Figure 4 As shown; the transverse guide 11 is limited between the relatively arranged tensile plates 211 and can slide relative to the tensile plates 211.

[0048] At this time, the T-shaped transverse guide 11 and the L-shaped tensile plate 211 can cooperate and restrain each other during the sliding process, thereby achieving a better anti-pull-out effect.

[0049] It should be noted that, in order to further ensure that the lateral guide 11 does not detach from the lateral displacement track 21 during the sliding process, the two ends of the lateral displacement track 21 in the length direction should be provided with corresponding sealing plates or limiting plates to close the track.

[0050] During installation, the aforementioned transverse guide 11 needs to be installed into the transverse displacement rail 21 first, and then the structure for enclosing the rail is fixedly installed at both ends of the rail by welding or bolt fastening. Figure 5 As shown. The above structure and installation method are existing technologies and will not be described in detail here.

[0051] Considering different usage environments and potential errors during parts manufacturing, the transverse guide 11 will experience some swaying in the height direction after being installed in the transverse displacement track 21. To overcome this problem, further improve the stability of the support structure, and avoid damage to the support due to collisions, as an optional implementation, a groove 212 is provided on the side wall of the part of the tensile plate 211 that contacts the transverse guide 11, and a wear-resistant plate 213 is fixedly disposed between the tensile plate 211 and the transverse guide 11 via the groove 212.

[0052] Specifically, the tensile plate 211 is also provided with an adjustment hole identical to the groove 212, and the adjustment bolt 214 is threadedly connected to the tensile plate 211 through the adjustment hole, such as... Figure 4 As shown, the rotating adjusting bolt 214 can adjust the coefficient of friction between the transverse guide 11 and the wear-resistant plate 213 by adjusting the gap formed between them.

[0053] To further enhance the strength of the first sliding support 2, as an optional embodiment, the first sliding support 2 further includes a sliding support 22 and a reinforcing rib 23. The sliding support 22 is fixedly disposed on the transverse displacement track 21, and the reinforcing rib 23 is formed outside the transverse displacement track 21 and fixedly connected to the sliding support 22 and the transverse displacement track 21.

[0054] In this embodiment and other similar implementations, the sliding support 22 and the transverse displacement track 21 can be fixed by welding, or they can be set as an integral structure.

[0055] Since relative sliding will occur between the sliding support 22 and the transverse displacement track 21, in order to enhance the durability of the support and avoid serious damage to the support due to friction, in this embodiment, a sliding aid component is provided between the sliding support 22 and the transverse guide 11.

[0056] The structure of the above-mentioned friction-resistant component will be specifically described below, taking the example of the friction-resistant component being located between the fixed support 1 and the first sliding support 2:

[0057] The first sliding member mentioned above is a sliding metal plate 24 fixedly installed on the lower surface of the sliding support 22, such as... Figure 4 As shown; the second sliding member is a sliding PTFE plate 111 fixedly installed on the upper surface of the transverse guide member 11. The two are attached to each other and form a sliding plane during use.

[0058] Specifically, the aforementioned sliding metal plate 24 is made of stainless steel; the surface of the aforementioned transverse guide 11 facing the sliding support 22 is recessed to form a mounting groove, which is circular, such as... Figure 6 and Figure 7 As shown, the PTFE sliding plate 111 is fixedly mounted on the transverse guide 11 via the mounting groove and can be attached to the sliding metal plate 24.

[0059] The aforementioned sliding metal plate 24 and sliding PTFE plate 111 are bonded together, which not only provides a sliding effect, but also avoids wear problems caused by direct contact friction of related structures, thereby effectively improving the durability of the support.

[0060] As an optional implementation, at least two forward guide members 4 are fixedly provided on the upper surface of the first sliding support 2, protruding outward, and the two forward guide members 4 are parallel to each other; the number of second sliding supports 3 is the same as the number of forward guide members 4 and they are arranged in a one-to-one correspondence; the lower surface of the second sliding support 3 forms a forward displacement track 31 that can slide and cooperate with the forward guide member 4; any second sliding support 3 can be slidably connected to the corresponding forward guide member 4 through the forward displacement track 31.

[0061] like Figure 1 As shown, at this time, the support has a bracket-shaped or Y-shaped structure, which has a better seismic resistance and the bearing capacity of the support is more balanced.

[0062] The structural relationship between the aforementioned forward guide 4 and forward displacement track 31 is as follows: Figure 1 and Figure 2 As shown, its structure is basically the same as that of the lateral guide 11 and the lateral displacement track 21, and will not be described in detail here.

[0063] As an optional implementation, the support further includes a tensile anchor 5, one end of which is fixedly connected to the fixed support 1 and / or the second sliding support 3, and the other end is fixedly installed on the bridge span structure or pier, such as... Figure 1 As shown.

[0064] It is understood that the support structure provided in this embodiment can achieve displacement along two different paths, lateral and longitudinal, thereby giving bridges and other structures using this support a certain degree of flexibility. Simultaneously, the sliding track structure formed by the cooperation of the T-shaped guide and the L-shaped tensile plate 211 has good tensile strength and anti-overturning functions, ensuring the safety of the relevant structure under the premise of flexible movement. Under the action of the adjusting bolt 214, the friction coefficient between the wear-resistant plate 213 and the lateral guide is adjustable. The friction-resistant component located between the fixed support 1, the first sliding support 2, and the second sliding support 3 helps reduce wear between the sliding components, making the support structure more durable. The first sliding support 2, together with the fixed support 1 and the second sliding support 3, forms an arch-shaped structure, which has a good seismic effect, and the overall supporting force of the support is more balanced. Compared with traditional supports, the support structure provided by this invention is simple, easy to manufacture, and has a significant anti-overturning effect, making it worthy of promotion.

[0065] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement bearing with adjustable friction coefficient, characterized in that, It includes a fixed support, a first sliding support, a second sliding support, and a friction-resistant component. The first sliding support is slidably connected to the fixed support and the second sliding support, and their sliding paths are perpendicular to each other. The friction-resistant component is located between the fixed support and the first sliding support, and / or the friction-resistant component is located between the first sliding support and the second sliding support; The wear-resistant component includes a first sliding member and a second sliding member that are in contact with each other, and the contact surfaces of the first sliding member and the second sliding member form a sliding plane, which is a smooth surface; The first sliding support slides relative to the fixed support and / or the second sliding support via the sliding plane; At least two forward guide members are fixedly provided on the upper surface of the first sliding support, and the two forward guide members are parallel to each other; The number of the second sliding supports is the same as the number of the forward guide members and they are arranged in a one-to-one correspondence. The lower surface of the second sliding support forms a forward displacement track that can slide and cooperate with the forward guide member. Any one of the second sliding supports can slide and connect with the corresponding forward guide member through the forward displacement track. A transverse guide is formed at the upper end of the fixed support; A transverse displacement track is formed below the first sliding support, and the first sliding support is slidably connected to the transverse guide member via the transverse displacement track. The second sliding support is slidably disposed on the first sliding support and can slide relative to the first sliding support; The lateral guide and the fixed support are an integral structure and the cross section of the lateral guide is a T-shaped structure. The lateral displacement track includes L-shaped tensile plates arranged opposite to each other. The lateral guide is positioned between the relatively arranged tensile plates and can slide relative to the tensile plates.

2. The longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient according to claim 1, characterized in that, A groove is provided on the side wall of the part of the tensile plate that contacts the transverse guide member, and the wear-resistant plate is fixedly disposed between the tensile plate and the transverse guide member through the groove.

3. The longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient according to claim 2, characterized in that, The tensile plate is also provided with an adjustment hole identical to the groove, and the adjustment bolt is threadedly connected to the tensile plate through the adjustment hole; rotating the adjustment bolt can adjust the coefficient of friction between the transverse guide and the wear-resistant plate.

4. The longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient according to claim 1, characterized in that, The first sliding support further includes a sliding support and a reinforcing rib plate. The sliding support is fixedly disposed on the transverse displacement track, and the reinforcing rib plate is formed outside the transverse displacement track and is fixedly connected to the sliding support and the transverse displacement track.

5. The longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient according to claim 4, characterized in that, The sliding support is welded and fixed to the lateral displacement track.

6. The longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient according to claim 1, characterized in that, The wear-resistant component is located between the fixed support and the first sliding support; The first sliding member is a sliding metal plate fixedly installed on the lower surface of the sliding support, and the second sliding member is a sliding PTFE plate fixedly installed on the transverse guide and able to be in contact with the sliding metal plate.

7. The longitudinal Y-shaped anti-tilting and seismic-resistant multi-directional displacement support with adjustable friction coefficient according to claim 1, characterized in that, The support also includes a tensile anchor bolt, one end of which is fixedly connected to the fixed support and / or the second sliding support, and the other end is fixedly installed on the bridge span structure or pier.

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