Swing self-resetting pier with energy dissipation mechanism

Abstract

This invention discloses a swing self-resetting bridge pier with an energy dissipation mechanism, relating to the field of bridge structure technology. An energy-absorbing support pad is embedded at the top of the pier cap, and several buffer support ribs are equidistantly embedded on the inner side of the pier cap. Buffer limiting sleeves are sleeved on the side ends of the buffer support ribs, and load-bearing hollow frames are sleeved on the side ends of the multiple buffer limiting sleeves. Insertion and pressing sleeves are sleeved on the inner side of the load-bearing hollow frame, and several spring telescopic rods are equidistantly installed on the inner side of the load-bearing hollow frame. This invention solves the problems of stress concentration and reset overload caused by unidirectional external support in traditional structures. This structure adopts internal and external bidirectional composite support, combined with a multi-component linkage design including universal connecting balls, buffer rubber sheets, and energy-absorbing springs. It can adapt to multi-dimensional earthquake excitation, achieve multi-path energy dissipation, and automatically achieve multi-point reset after swaying, significantly improving the structure's buffer energy absorption capacity and seismic stability, effectively reducing the risk of short-term overload damage, and enhancing the overall seismic toughness and reliability of the bridge pier.

Description

Technical Field

[0001] This invention relates to the field of bridge structure technology, specifically to a swing self-resetting bridge pier with an energy dissipation mechanism. Background Technology

[0002] Bridge piers are key substructure structures that support the bridge span and transfer the load to the foundation. They are located between two abutments and divide the bridge into multiple spans. The swing self-resetting bridge pier is a new type of earthquake-resistant structure. Through the synergistic effect of the swing mechanism, self-resetting capability and energy dissipation mechanism, it can achieve the function of controllable damage during earthquakes and rapid recovery after earthquakes.

[0003] However, existing swaying piers mostly use a single external support, such as a viscous damper or prestressed tendon, which has the following drawbacks: The mismatch between the support system and the deformation mode of the pier body leads to stress concentration in the plastic hinge zone at the bottom of the pier; Unidirectional support cannot adapt to multidimensional earthquake excitation, and its energy consumption path is singular; Traditional spring return elements have poor stiffness matching, which can easily lead to self-reset overload damage. Summary of the Invention

[0004] This invention provides a swing self-resetting bridge pier with an energy dissipation mechanism, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a swing self-resetting bridge pier with an energy dissipation mechanism, comprising a pier cap, wherein a bridge pier assembly is provided at the top of the pier cap; The pier assembly includes an energy-absorbing support pad; An energy-absorbing support pad is embedded at the top of the foundation, and several buffer support ribs are embedded at equal intervals on the inner side of the foundation. The buffer support rib is fitted with a buffer limiting sleeve on its side end, and a load-bearing hollow frame is fitted with the side end of the multiple buffer limiting sleeves. An insertion and pressing sleeve is fitted inside the load-bearing hollow frame, and several spring telescopic rods are installed at equal intervals inside the load-bearing hollow frame. Several buffer hollow sleeves are equidistantly installed on the side end of the insertion pressing sleeve, and a universal connecting ball is rotatably connected to the inner side of the buffer hollow sleeve; A threaded reinforcing rod is inserted and installed at the bottom end of the bearing platform corresponding to the position of the load-bearing hollow frame, and an internally threaded fixing ring is embedded and installed at the bottom end of the bearing platform near the position of the threaded reinforcing rod.

[0006] According to the above technical solution, the bottom end of the load-bearing hollow frame is attached to the top end of the energy-absorbing support pad, the buffer support rib is placed inside the load-bearing hollow frame, and one end of the spring telescopic rod is snapped into the side end of the universal connecting ball.

[0007] According to the above technical solution, the threaded reinforcing rod and the internal threaded fixing ring are connected by a double threaded connecting ring, and a number of energy-absorbing spring plates are installed at equal intervals on the top inner side of the load-bearing hollow frame, and an inner pressure limiting sleeve is glued to the side end of the energy-absorbing spring plate. The top of the side end of the threaded reinforcing rod is equipped with a support top hole block by a fixing nut. The top of the support platform and the bottom of the support top hole block are both connected to a rotating alignment frame by fixing bolts and fixing nuts. The rotating alignment frame has a snap-fit ​​rotating frame on its side end, and several spring return rods are installed at equal intervals on the inner side of the snap-fit ​​rotating frame. The top and bottom ends of the load-bearing hollow frame are each secured with a load-bearing mating frame by fixing bolts and fixing nuts. One end of the load-bearing mating frame is rotatably connected to an inner circle mating frame. The inner circular mating frame is rotatably connected to a universal positioning ball, and a buffer rubber sheet is bonded to the side end of the universal connecting ball and the universal positioning ball. An inner hollow rubber sleeve is bonded to the inner side of the support top hole block.

[0008] According to the above technical solution, the threaded reinforcing rod is fitted with the side end of the insertion pressing sleeve, the inner pressure limiting sleeve and the inner hollow rubber sleeve, and the double threaded connecting ring is connected to the threaded reinforcing rod and the inner threaded fixing ring through threads.

[0009] According to the above technical solution, the longitudinal section of the threaded reinforcing rod is T-shaped, and the inner pressure limiting sleeve is placed inside the load-bearing hollow frame.

[0010] According to the above technical solution, the side end of the support top hole block is fitted with the side end of the inner pressure limiting sleeve, and one end of the spring reset rod is engaged with the side end of the universal positioning ball.

[0011] According to the above technical solution, the side ends of the multiple fixing bolts are fitted and connected to the rotating alignment frame and the load-bearing fitting frame, and the top end of the hollow rubber sleeve is fitted with the bottom end of the fixing nut.

[0012] According to the above technical solution, a pier cap assembly is provided on the side end of the supporting top hole block; The pier cap assembly includes an embedded mating block; An embedded mating block is installed at the bottom end of the support top hole block, and several manual hydraulic cylinders are installed at equal intervals at the top end of the support top hole block. Multiple manual hydraulic cylinders are fitted with support bearing plates at their top ends, and several suspended energy-absorbing plates are equidistantly embedded in the top ends of the support bearing plates. The top of the support plate is provided with several micro-sliding energy-absorbing plates, and the tops of the multiple micro-sliding energy-absorbing plates are embedded with load-bearing fixing plates. The tops of both the support plate and the load-bearing fixing plates are provided with combined limiting holes. A swing buffer sleeve is embedded inside the combined limiting hole, and a double threaded support rod is sleeved inside the swing buffer sleeve. A clamping nut is threadedly connected to the side end of the double threaded support rod.

[0013] According to the above technical solution, the bottom end of the load-bearing fixed plate is attached to the top of the side end of the suspended energy-absorbing plate, and the side ends of the plurality of clamping nuts are attached to the side ends of the supporting load-bearing plate and the side ends of the load-bearing fixed plate.

[0014] According to the above technical solution, the double-threaded support rod is placed inside the combined limiting hole, and the embedded mating block is placed inside the load-bearing hollow frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The bridge pier assembly is equipped with threaded reinforcing rods, internal threaded fixing rings, and double threaded connecting rings for interlocking. This, combined with buffer support ribs, restricts the support of the pier cap, the positioning of the load-bearing hollow frame and the support top hole block, achieving a unified interlocking connection. Multiple sets of load-bearing mating frames are installed to the side of the load-bearing hollow frame using fixing nuts and bolts. The pier cap and the load-bearing hollow frame, as well as the load-bearing hollow frame and the support top hole block, are fixed and interlocked using spring return rods, internal circular mating frames, and universal positioning balls, enabling the combined installation of the bridge pier. Through central support, ring connections, and the alignment and interlocking of the top and bottom of the side ends, multi-segment separate support of the bridge deck is achieved. Furthermore, the positioning combination ensures stable interlocking, guaranteeing that each part bears independent force during swaying, achieving damping and buffering energy absorption. A spring-loaded return rod drives the universal positioning ball, inner circular mating frame, and buffer rubber sheet to rotate in multiple directions, providing elastic buffering and energy absorption. This achieves positioning and buffering of the support platform, load-bearing hollow frame, and support top hole block, thus providing external buffering and locking. A spring-loaded telescopic rod drives the universal connecting ball, buffer hollow sleeve, and buffer rubber sheet to rotate and buffer the swing, achieving internal swing reversal and energy absorption. This is coordinated with the synchronous disordered swing of the buffer support rib and threaded reinforcing rod. The energy-absorbing spring sheet and inner pressure limiting sleeve buffer and absorb energy from the embedded mating block and load-bearing hollow frame. This, along with the energy-absorbing support pad, buffer limiting sleeve, insertion pressing sleeve, inner pressure limiting sleeve, and buffer... The rubber sheet and hollow rubber sleeve provide mutual buffering between multiple components, enabling slight misalignment and continuous buffering and reset. They also provide support and limitation, achieving damping energy absorption and swing self-reset energy absorption and dissipation. This effectively solves the problems in existing technologies where external support is used for bridge piers during swing self-reset, leading to insufficient support points and damage due to fixed support forces. By utilizing bidirectional internal and external support, the positioning and limiting points are increased, the force-bearing area is expanded, and the damage caused by insufficient force is reduced. Furthermore, the buffer components work quickly in coordination with the vibration direction, improving the reset and shock absorption effect and efficiency.

[0016] 2. A pier cap assembly is installed. By inserting a manual hydraulic cylinder into the inner side of the support top hole block, the support bearing plate is fixed and locked. The bearing fixed plate and the micro-sliding energy-absorbing plate are placed on top of the suspended energy-absorbing plate and the support bearing plate. The bearing fixed plate and the support bearing plate are positioned by using a swing buffer sleeve, double threaded support rod and clamping nut to achieve locking and limit, and to make elastic adjustments of different amplitudes. The load-bearing effect is adjusted according to the load-bearing requirements. The suspended energy-absorbing plate and the micro-sliding energy-absorbing plate slide and extend and reciprocate between the support bearing plate and the bearing fixed plate. With the help of the swing buffer sleeve, damping elastic treatment is performed to achieve positioning and locking. Small-amplitude swing treatment is performed to achieve elastic reset and energy absorption and dissipation treatment, thereby improving the stability of the pier top support.

[0017] In summary, by cooperating with the pier components and pier cap components, and utilizing the combined effects of bottom rigid support, middle swing buffer energy absorption, top swing buffer energy absorption, and top pressing swing energy absorption, multi-segment dispersed buffer swing self-resetting treatment is achieved. This dissipates the energy generated by vibration, improves the effect of buffer swing reset, reduces the occurrence of damage due to insufficient short-term force buffering, and enhances the seismic resistance of the pier. By setting the pier components and pier cap components to work together, a triple structure is formed, consisting of rigid support at the bottom, multi-dimensional buffering and energy absorption in the middle, and elastic limiting and reset at the top. This solves the stress concentration and reset overload problems caused by unidirectional external support in traditional structures. The structure adopts internal and external bidirectional composite support, combined with the linkage design of multiple components such as universal connecting balls, buffer rubber sheets, and energy-absorbing springs. It can adapt to multi-dimensional earthquake excitation, realize multi-path energy dissipation, and automatically achieve multi-point reset after shaking. This significantly improves the structure's buffering and energy absorption capacity and seismic stability, effectively reduces the risk of short-term overload damage, and enhances the overall seismic toughness and reliability of the pier. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the bridge pier assembly of the present invention; Figure 3 This is a schematic diagram of the mounting structure of the fixing nut of the present invention; Figure 4 This is a schematic diagram of the installation structure of the support top hole block of the present invention; Figure 5 This is a schematic diagram of the installation structure of the universal connecting ball of the present invention; Figure 6This is a schematic diagram of the installation structure of the buffer rubber sheet of the present invention; Figure 7 This is a structural schematic diagram of the cap assembly of the present invention; Figure 8 This is a schematic diagram of the installation structure of the combined limiting hole of the present invention; Labels in the diagram: 1. Foundation; 2. Pier Components; 201. Energy-absorbing support pad; 202. Buffer support rib; 203. Buffer limiting sleeve; 204. Load-bearing hollow frame; 205. Insertion pressing sleeve; 206. Spring telescopic rod; 207. Buffer hollow sleeve; 208. Universal connecting ball; 209. Threaded reinforcing rod; 210. Internal threaded fixing ring; 211. Double threaded connecting ring; 212. Energy-absorbing spring sheet; 213. Internal pressure limiting sleeve; 214. Fixing nut; 215. Support top hole block; 216. Fixing bolt; 217. Rotating alignment frame; 218. Snap-fit ​​rotating frame; 219. Spring return rod; 220. Load-bearing mating frame; 221. Inner circle mating frame; 222. Universal positioning ball; 223. Buffer rubber sheet; 224. Inner hollow rubber sleeve; 3. Pier cap assembly; 301. Embedded mating block; 302. Manual hydraulic cylinder; 303. Support bearing plate; 304. Suspended energy-absorbing plate; 305. Micro-sliding energy-absorbing plate; 306. Load-bearing fixing plate; 307. Combined limiting hole; 308. Swing buffer sleeve; 309. Double threaded support rod; 310. Clamping nut. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-8 As shown, the present invention provides a technical solution, a swing self-resetting bridge pier with an energy dissipation mechanism, including a pier cap 1, and a bridge pier assembly 2 is provided at the top of the pier cap 1; The pier assembly 2 includes an energy-absorbing support pad 201, a buffer support rib 202, a buffer limiting sleeve 203, a load-bearing hollow frame 204, an insertion pressing sleeve 205, a spring telescopic rod 206, a buffer hollow sleeve 207, a universal connecting ball 208, a threaded reinforcing rod 209, an internal thread fixing ring 210, a double thread connecting ring 211, an energy-absorbing spring sheet 212, an internal pressure limiting sleeve 213, a fixing nut 214, a support top hole block 215, a fixing bolt 216, a rotating alignment frame 217, a snap-fit ​​rotating frame 218, a spring return rod 219, a load-bearing mating frame 220, an inner circle mating frame 221, a universal positioning ball 222, a buffer rubber sheet 223, and an inner hollow rubber sleeve 224. An energy-absorbing support pad 201 is embedded in the top of the foundation 1. Several buffer support ribs 202 are embedded in the inner side of the foundation 1 at equal intervals. Buffer limiting sleeves 203 are sleeved on the side ends of the buffer support ribs 202. Load-bearing hollow frames 204 are sleeved on the side ends of the multiple buffer limiting sleeves 203. The bottom end of the load-bearing hollow frame 204 is in contact with the top of the energy-absorbing support pad 201. The buffer support ribs 202 are placed inside the load-bearing hollow frame 204 to achieve buffer connection and alignment, and ensure the limiting engagement and alignment support. An insertion and pressing sleeve 205 is sleeved inside the load-bearing hollow frame 204. Several spring telescopic rods 206 are equidistantly installed inside the load-bearing hollow frame 204. Several buffer hollow sleeves 207 are equidistantly installed on the side end of the insertion and pressing sleeve 205. A universal connecting ball 208 is rotatably connected inside the buffer hollow sleeve 207. One end of the spring telescopic rod 206 is snapped into the side end of the universal connecting ball 208 to realize combined reversal and vibration coordination. A threaded reinforcing rod 209 is inserted and installed at the bottom end of the bearing platform 1, corresponding to the position of the load-bearing hollow frame 204. The longitudinal section of the threaded reinforcing rod 209 is T-shaped, which realizes the locking support and locking restriction. An internal threaded fixing ring 210 is embedded and installed at the bottom end of the bearing platform 1 near the position of the threaded reinforcing rod 209. A double threaded connecting ring 211 is connected to the threaded reinforcing rod 209 and the internal threaded fixing ring 210 by threads, which realizes bottom positioning support and support locking, increases the restriction area, and improves the stability of the restriction. Several energy-absorbing spring plates 212 are equidistantly installed on the top inner side of the load-bearing hollow frame 204. An inner pressure limiting sleeve 213 is bonded to the side end of the energy-absorbing spring plate 212. A support top hole block 215 is installed on the top side end of the threaded reinforcing rod 209 through a fixing nut 214. The inner pressure limiting sleeve 213 is placed inside the load-bearing hollow frame 204. The side end of the support top hole block 215 fits into the side end of the inner pressure limiting sleeve 213 to achieve the stability of load-bearing limitation and buffer limitation. The top of the base 1 and the bottom of the supporting top hole block 215 are both connected to a rotating alignment frame 217 by fixing bolts 216 and fixing nuts 214. The side end of the rotating alignment frame 217 is connected to a locking rotating frame 218. Several spring return rods 219 are installed at equal intervals on the inner side of the locking rotating frame 218. The top and bottom ends of the load-bearing hollow frame 204 are connected to load-bearing mating frames 220 by fixing bolts 216 and fixing nuts 214. One end of the load-bearing mating frame 220 is rotatably connected to an inner circle mating frame 221. The inner circle mating frame 221 is rotatably connected to a universal positioning ball 222. One end of the spring return rod 219 is engaged with the side end of the universal positioning ball 222 to achieve energy absorption and buffering, ensuring the stability of the swing buffer. The universal connecting ball 208 and the side end of the universal positioning ball 222 are bonded with a buffer rubber sheet 223. The inner side of the support top hole block 215 is bonded with an inner hollow rubber sleeve 224. The threaded reinforcing rod 209 is fitted with the side end of the insertion pressing sleeve 205, the inner pressure limiting sleeve 213 and the inner hollow rubber sleeve 224 to achieve central alignment support and positioning restriction, and to achieve full-body support and fixation. The side ends of multiple fixing bolts 216 are fitted with the rotating alignment frame 217 and the load-bearing mating frame 220. The top end of the inner hollow rubber sleeve 224 is fitted with the bottom end of the fixing nut 214 to achieve threaded engagement and anti-slip damping restriction.

[0022] A pier cap assembly 3 is provided on the side end of the supporting top hole block 215; The pier cap assembly 3 includes an embedded mating block 301, a manual hydraulic cylinder 302, a support bearing plate 303, a suspended energy-absorbing plate 304, a micro-sliding energy-absorbing plate 305, a load-bearing fixing plate 306, a combined limiting hole 307, a swing buffer sleeve 308, a double threaded support rod 309, and a clamping nut 310. An embedded mating block 301 is installed at the bottom of the support top hole block 215. The embedded mating block 301 is placed inside the load-bearing hollow frame 204 to achieve top alignment support and alignment snap-fit, ensuring the stability of the combined support and combined limit. Several manual hydraulic cylinders 302 are installed at equal intervals at the top of the support top hole block 215. The top of the multiple manual hydraulic cylinders 302 is snap-fitted with a support bearing plate 303. Several suspended energy-absorbing plates 304 are embedded at equal intervals at the top of the support bearing plate 303. Several micro-sliding energy-absorbing plates 305 are placed on the top of the supporting load plate 303. The energy-absorbing spring plate 212, the suspended energy-absorbing plate 304 and the micro-sliding energy-absorbing plate 305 are all made of elastic steel sheets. The top of the multiple micro-sliding energy-absorbing plates 305 is embedded in the load-bearing fixing plate 306. The top of both the supporting load plate 303 and the load-bearing fixing plate 306 are provided with combined limiting holes 307. A swing buffer sleeve 308 is embedded inside the combined limiting hole 307. The energy-absorbing support pad 201, buffer limiting sleeve 203, insertion pressing sleeve 205, buffer rubber sheet 223, hollow rubber sleeve 224 and swing buffer sleeve 308 are all made of high-damping elastic rubber. A double-threaded support rod 309 is sleeved inside the swing buffer sleeve 308. The side end of the double-threaded support rod 309 is connected to a clamping nut 310 by thread. The bottom end of the load-bearing fixing plate 306 is in contact with the top side end of the suspended energy-absorbing plate 304. The side ends of multiple clamping nuts 310 are in contact with the side ends of the support load-bearing plate 303 and the side ends of the load-bearing fixing plate 306. The double-threaded support rod 309 is placed inside the combined limiting hole 307 to achieve alignment and energy absorption, and to ensure buffer positioning and buffer fit.

[0023] The working principle and usage process of this invention are as follows: When installing and using the bridge pier, the threaded reinforcing rod 209 and the internal threaded fixing ring 210 are engaged and connected by the double threaded connecting ring 211. The threaded reinforcing rod 209 and the buffer support bar 202 are placed at the pouring position, and the steel reinforcement frame is placed at the pouring position. The formwork is used for limiting the position, and the fixing bolt 216 is embedded into the formwork at the pouring position before pouring. Concrete is then poured to realize the pouring and installation of the pier cap 1. After the pouring is completed, the energy-absorbing support pad 201 is fitted onto the side end of the buffer support bar 202 and inserted into the inside of the foundation 1. The buffer limiting sleeve 203 is fitted onto the side end of the buffer support bar 202. The insertion pressing sleeve 205 is fitted onto the side end of the threaded reinforcing rod 209. At this time, the buffer hollow sleeve 207, the universal connecting ball 208 and the spring telescopic rod 206 are engaged with the side end of the insertion pressing sleeve 205. The spring telescopic rod 206 is fitted onto the side end of the formwork support. The steel frame is placed at the pouring position and the formwork support is used again for limiting. The fixing bolt 216 is embedded into the pouring position of the formwork support before pouring. The concrete is poured and the load-bearing hollow frame 204 is manufactured. During the concrete pouring process, the spring telescopic rod 206 is fixed inside the concrete. The energy-absorbing spring sheet 212 and the inner pressure limiting sleeve 213 are both snapped onto the inner side of the load-bearing hollow frame 204, and the inner hollow rubber sleeve 224 is fitted onto the side end of the threaded reinforcing rod 209 to achieve locking and limiting. The formwork is used again for support and limiting. The steel frame is placed at the pouring position. The fixing bolt 216 is embedded into the formwork pouring position before pouring. The top hole block 215 is created by pouring concrete. The fixing bolt 216 is used to lock and limit the inner hollow rubber sleeve 224 and the threaded reinforcing rod 209 to achieve a stable combination connection. During the pouring process, the embedded matching block 301 is inserted into the inner side of the inner pressure limiting sleeve 213 at the position of the load-bearing hollow frame 204 to achieve positioning and limiting. After casting, multiple sets of rotating alignment frames 217 are fixed to the side positions of the pier cap 1 and the support top hole block 215 by fixing nuts 214. Multiple sets of load-bearing mating frames 220 are installed to the side of the load-bearing hollow frame 204 by fixing nuts 214. The pier cap 1 and the load-bearing hollow frame 204 and the load-bearing hollow frame 204 and the support top hole block 215 are fixedly engaged by spring return rod 219, inner circle mating frame 221 and universal positioning ball 222, so as to realize the combined installation of the pier. Insert the manual hydraulic cylinder 302 into the inside of the support top hole block 215, install the support bearing plate 303 into the bridge support installation position, place the load-bearing fixed plate 306 and the micro-sliding energy-absorbing plate 305 on the top of the suspension energy-absorbing plate 304 and the support bearing plate 303, fit the swing buffer sleeve 308 and the double threaded support rod 309 into the inside of the combined limiting hole 307, use the clamping nut 310 to position the load-bearing fixed plate 306 and the support bearing plate 303 together to achieve locking and limiting, and adjust the whole by the clamping nut 310 and the double threaded support rod 309 to achieve elastic adjustment of different amplitudes, and adjust the load-bearing effect according to the load-bearing requirements; When the bridge is subjected to vibration, the load-bearing hollow frame 204, the supporting top hole block 215, and the bridge body vibrate. At this time, the external spring return rod 219 drives the universal positioning ball 222 to move along the inner circle mating frame 221. Under the action of the rotational damping energy absorption of the buffer rubber sheet 223, the spring inside the spring return rod 219 is stretched and compressed. One end of the spring return rod 219 is fixed to the snap-fit ​​rotating frame 218, so that one end of the spring return rod 219 and the universal positioning ball 222 are stretched and contracted, and the position is changed with the vibration. At this time, the snap-fit ​​rotating frame 218 and the rotating alignment frame 217 rotate and change position. The inner circle mating frame 221 rotates and changes position along the load-bearing mating frame 220. The bearing platform 1 is used for positioning, and the load-bearing hollow frame 204 is positioned. 04 and the support top hole block 215 are positioned and buffered. The spring telescopic rod 206 drives the universal connecting ball 208 to rotate along the buffer hollow sleeve 207, and the buffer rubber sheet 223 buffers its swing. The insertion pressing sleeve 205, the energy-absorbing support pad 201 and the buffer limiting sleeve 203 absorb energy and buffer the support platform 1 and the load-bearing hollow frame 204, and push the load-bearing hollow frame 204 to swing disorderly along the buffer support rib 202 and the threaded reinforcing rod 209 and reset itself. The energy-absorbing spring sheet 212 and the inner pressure limiting sleeve 213 buffer and absorb energy for the embedded mating block 301 and the load-bearing hollow frame 204. The inner hollow rubber sleeve 224 absorbs and disperses energy at the top, thereby limiting the positioning of the support top hole block 215 and achieving buffering. By using suspended energy-absorbing plates 304 and micro-sliding energy-absorbing plates 305 to slide and reciprocate between the support bearing plate 303 and the bearing fixed plate 306, and cooperating with the swing buffer sleeve 308 for damping elastic treatment, positioning and locking treatment is achieved, and small-amplitude swing treatment is performed to achieve elastic reset and energy absorption and dissipation treatment, thereby improving the stability of the pier top support.

[0024] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A swing self-resetting bridge pier with an energy dissipation mechanism, comprising a pier cap (1), characterized in that: The top of the pier (1) is provided with a pier assembly (2); The pier assembly (2) includes an energy-absorbing support pad (201). An energy-absorbing support pad (201) is embedded in the top of the support platform (1), and several buffer support ribs (202) are embedded in the inner side of the support platform (1) at equal intervals. The buffer support rib (202) is sleeved with a buffer limiting sleeve (203) on its side end, and a load-bearing hollow frame (204) is sleeved with the side end of a plurality of buffer limiting sleeves (203). The load-bearing hollow frame (204) is fitted with an insertion pressing sleeve (205) on its inner side, and a number of spring telescopic rods (206) are installed at equal intervals on the inner side of the load-bearing hollow frame (204). The insertion pressing sleeve (205) has several buffer hollow sleeves (207) installed at equal intervals on its side end, and the buffer hollow sleeves (207) are rotatably connected to universal connecting balls (208) on their inner sides. A threaded reinforcing rod (209) is inserted and installed at the bottom end of the bearing platform (1) corresponding to the position of the load-bearing hollow frame (204), and an internal threaded fixing ring (210) is embedded and installed at the bottom end of the bearing platform (1) near the position of the threaded reinforcing rod (209).

2. A swing self-resetting bridge pier with an energy-dissipating mechanism according to claim 1, characterized in that, The bottom end of the load-bearing hollow frame (204) is attached to the top end of the energy-absorbing support pad (201), the buffer support rib (202) is placed inside the load-bearing hollow frame (204), and one end of the spring telescopic rod (206) is snapped into the side end of the universal connecting ball (208).

3. A swing self-resetting bridge pier with an energy-dissipating mechanism according to claim 1, characterized in that, The threaded reinforcing rod (209) and the internal threaded fixing ring (210) are connected by a double threaded connecting ring (211). Several energy-absorbing spring plates (212) are installed at equal intervals on the top inner side of the load-bearing hollow frame (204). An internal pressure limiting sleeve (213) is glued to the side end of the energy-absorbing spring plate (212). The top of the side end of the threaded reinforcing rod (209) is fitted with a support top hole block (215) by a fixing nut (214). The top of the support platform (1) and the bottom of the support top hole block (215) are both connected to a rotating alignment frame (217) by fixing bolts (216) and fixing nuts (214). The rotating alignment frame (217) has a snap-fit ​​rotating frame (218) on its side end, and a number of spring return rods (219) are installed at equal intervals on the inner side of the snap-fit ​​rotating frame (218). The top and bottom of both ends of the load-bearing hollow frame (204) are connected to load-bearing mating frames (220) by fixing bolts (216) and fixing nuts (214), and one end of the load-bearing mating frame (220) is rotatably connected to an inner circle mating frame (221). The inner circle mating frame (221) is rotatably connected to a universal positioning ball (222), and a buffer rubber sheet (223) is bonded to the side end of the universal connecting ball (208) and the universal positioning ball (222). An inner hollow rubber sleeve (224) is bonded to the inner side of the support top hole block (215).

4. A swing self-resetting bridge pier with an energy dissipation mechanism according to claim 3, characterized in that, The threaded reinforcing rod (209) is fitted to the side of the insertion pressing sleeve (205), the inner pressure limiting sleeve (213) and the inner hollow rubber sleeve (224), and the double threaded connecting ring (211) is connected to the threaded reinforcing rod (209) and the inner threaded fixing ring (210) by threads.

5. A swing self-resetting bridge pier with an energy dissipation mechanism according to claim 3, characterized in that, The longitudinal section of the threaded reinforcing rod (209) is T-shaped, and the inner pressure limiting sleeve (213) is placed inside the load-bearing hollow frame (204).

6. A swing self-resetting bridge pier with an energy dissipation mechanism according to claim 3, characterized in that, The side end of the support top hole block (215) is fitted with the side end of the inner pressure limiting sleeve (213), and one end of the spring reset rod (219) is engaged with the side end of the universal positioning ball (222).

7. A swing self-resetting bridge pier with an energy-dissipating mechanism according to claim 3, characterized in that, The sides of the multiple fixing bolts (216) are fitted and connected to the rotating alignment frame (217) and the load-bearing fitting frame (220), and the top of the hollow rubber sleeve (224) is fitted to the bottom of the fixing nut (214).

8. A swing self-resetting bridge pier with an energy-dissipating mechanism according to claim 3, characterized in that, The support top hole block (215) is provided with a pier cap assembly (3) on its side end; The pier cap assembly (3) includes an embedded mating block (301). The bottom end of the support top hole block (215) is equipped with an embedded mating block (301), and a number of manual hydraulic cylinders (302) are equidistantly installed on the top end of the support top hole block (215). Multiple manual hydraulic cylinders (302) are fitted with a support plate (303) at their top ends, and a number of suspended energy-absorbing plates (304) are equidistantly embedded at the top ends of the support plate (303). The top of the support plate (303) is provided with a number of micro-sliding energy-absorbing plates (305), and the top of the multiple micro-sliding energy-absorbing plates (305) is embedded with a load-bearing fixing plate (306). The top of both the support plate (303) and the load-bearing fixing plate (306) are provided with combined limiting holes (307). A swing buffer sleeve (308) is embedded in the inner side of the combined limiting hole (307), and a double threaded support rod (309) is sleeved on the inner side of the swing buffer sleeve (308). A clamping nut (310) is threadedly connected to the side end of the double threaded support rod (309).

9. A swing self-resetting bridge pier with an energy-dissipating mechanism according to claim 8, characterized in that, The bottom end of the load-bearing fixing plate (306) is attached to the top of the side end of the suspended energy-absorbing plate (304), and the side ends of the multiple clamping nuts (310) are attached to the side ends of the supporting load-bearing plate (303) and the side ends of the load-bearing fixing plate (306).

10. A swing self-resetting bridge pier with an energy-dissipating mechanism according to claim 8, characterized in that, The double-threaded support rod (309) is placed inside the combined limiting hole (307), and the embedded mating block (301) is placed inside the load-bearing hollow frame (204).

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