Building stand column and bridge connecting joint for gallery bridge structure

Abstract

The invention provides a building stand column and bridge connecting joint for a gallery bridge structure, and belongs to the technical field of gallery bridge connection, the building stand column and bridge connecting joint comprises a bridge cross beam and a bridge longitudinal beam in the gallery bridge structure, anchor boxes are fixedly arranged on the lower portion of the bridge cross beam and the lower portion of the bridge longitudinal beam, and bridge floor concrete is arranged on the upper portion of the bridge cross beam and the upper portion of the bridge longitudinal beam; a plurality of gallery bridge stand columns are arranged on the upper portion of the bridge deck concrete, and fixing assemblies are arranged on the lower portions of the gallery bridge stand columns and used for being fixed to bridge cross beams, bridge longitudinal beams and the bridge deck concrete. The leveling mechanism comprises a lower circular plate fixedly arranged on the upper portion of the joint of the bridge cross beam and the bridge longitudinal beam, an upper circular plate is arranged on the upper portion of the lower circular plate, a plurality of reciprocating transverse moving assemblies and lifting adjusting assemblies are arranged between the lower circular plate and the upper circular plate, and the reciprocating transverse moving assemblies and the lifting adjusting assemblies are matched with each other to achieve leveling of the upper circular plate. Influences caused by earthquakes and driving vibration can be effectively resisted, dislocation of buildings on the bridge is avoided, stable stress performance of the structure is guaranteed, and components are prevented from being damaged.

Description

Technical Field

[0001] This invention belongs to the field of covered bridge connection technology, specifically relating to a building column and bridge connection node for covered bridge structures. Background Technology

[0002] Covered bridges are a traditional bridge structure in my country, specifically referring to bridges with rain shelters, and their history can be traced back approximately 2000 years. Because the structures on these bridges can not only achieve different designs to reflect local characteristics but also provide shelter from wind and rain and rest for pedestrians, many covered bridges have become local landmarks. Conventional covered bridges are mainly wooden structures or arched bridges, with the structures on the bridge being wooden, often single-story, and primarily serving as pedestrian bridges. The structures are supported on the bridge using stone slabs and other construction methods, and the connection between the two is hinged.

[0003] However, for double-deck covered bridges with large superstructures in areas with high seismic intensity, traditional wooden superstructures with hinged connections to the bridge are not suitable. Due to the large scale of the superstructures, traditional hinged column bases would increase the bending moment at the column tops, requiring larger structural members to meet the structural load-bearing requirements. This wastes materials and increases the self-weight of the superstructures, negatively impacting the bridge's load-bearing capacity. Earthquakes and traffic vibrations during bridge operation can also cause misalignment of the superstructures, affecting their structural performance and potentially causing component failure. Summary of the Invention

[0004] The purpose of this invention is to provide a connection node between building columns and bridges for covered bridge structures, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A connection node between a building column and a bridge for a covered bridge structure includes a bridge crossbeam and a bridge longitudinal beam in the covered bridge structure. Anchor boxes are fixedly installed at the lower part of the bridge crossbeam and the bridge longitudinal beam. Bridge deck concrete is installed on the upper part of the bridge crossbeam and the bridge longitudinal beam. Several covered bridge columns are installed on the upper part of the bridge deck concrete. Fixing components are installed at the lower part of the covered bridge columns for fixing to the bridge crossbeam, the bridge longitudinal beam and the bridge deck concrete.

[0007] The leveling mechanism includes a lower circular plate fixedly installed at the upper part of the connection between the bridge crossbeam and the bridge longitudinal beam. An upper circular plate is provided on the upper part of the lower circular plate. A plurality of reciprocating lateral movement components and lifting adjustment components are provided between the lower circular plate and the upper circular plate. The reciprocating lateral movement components and the lifting adjustment components cooperate with each other to achieve leveling of the upper circular plate.

[0008] Fixing mechanism, including a transmission shaft arranged in the reciprocating transverse movement component, one end of the transmission shaft is provided with a hexagonal plug for fixing and limiting the reciprocating transverse movement component, and the other end of the transmission shaft is provided with a limiting component for fixing and limiting the lifting and adjusting component.

[0009] As a preferred solution for the connection node between the building column and the bridge of the廊桥结构 in the present invention, the fixing component includes a bottom plate abutted on the bottom surface of the column foot of the廊桥立柱, several column foot stiffeners are fixedly arranged on the upper part of the bottom plate, the column foot stiffeners are fixedly connected with the廊桥立柱, several column foot fixing bolts are arranged between the column foot stiffeners, the column foot fixing bolts penetrate through the lower circular plate, the upper circular plate, the bridge cross beam and the bridge longitudinal beam, and nuts are threadedly connected to both ends of the column foot fixing bolts.

[0010] As a preferred solution for the connection node between the building column and the bridge of the廊桥结构 in the present invention, the fixing component further includes stud bolts fixedly arranged in the inner cavity, and the stud bolts are used to increase the stability when pouring concrete in the inner cavity of the anchor box.

[0011] As a preferred solution for the connection node between the building column and the bridge of the廊桥结构 in the present invention, several of the reciprocating transverse movement components include a fixed support plate fixedly arranged on the upper surface of the lower circular plate, a艹-shaped groove is formed in the upper part of the fixed support plate, a艹-shaped slider is slidably arranged in the inner cavity of the艹-shaped groove, a square guide block is fixedly arranged in the middle of the lower part of the艹-shaped slider, a threaded rod is threadedly penetrated through the middle of the square guide block, and the threaded rod is used to drive the square guide block and the艹-shaped slider to reciprocate in the inner cavity of the艹-shaped groove.

[0012] As a preferred solution for the connection node between the building column and the bridge of the廊桥结构 in the present invention, the threaded rod is rotatably connected with the fixed support plate, and one end of the threaded rod far from the square guide block movably penetrates through the side wall of the fixed support plate, and a hexagonal socket is formed in the middle of the end of the threaded rod movably penetrating through the side wall of the fixed support plate, and the hexagonal socket is used to conveniently rotate the threaded rod to drive the square guide block to reciprocate.

[0013] As a preferred solution for the connection node between the building column and the bridge of the廊桥结构 in the present invention, several of the lifting and adjusting components include two fixed seats fixedly arranged on the upper part of the艹-shaped slider, push rods are rotatably arranged on both of the fixed seats, one end of the push rod far from the fixed seat is rotatably connected with a telescopic rod, the telescopic end of the telescopic rod is fixedly connected with the bottom surface of the inner cavity of the艹-shaped groove, a support ring is fixedly arranged on the top surface of the retracted end of the telescopic rod, a knob is rotatably connected to the upper part of the support ring, a lifting and adjusting rod is threadedly connected in the inner cavity of the knob, and the upper part of the lifting and adjusting rod is fixedly connected with the lower surface of the upper circular plate.

[0014] It should be noted that the "廊桥结构" in the text seems to be a specific term that may need to be accurately defined according to the context. If there is a more specific and accurate translation for it, it can be further refined.As a preferred embodiment of the present invention for the connection node between the building column and the bridge in the structure of the covered bridge, the lifting and adjusting assembly further includes a large circular groove fixedly disposed in the middle of the upper surface of the lower circular plate, a large sphere disposed on the upper part of the large circular groove, and the upper surface of the large sphere being fixedly connected to the lower surface of the upper circular plate.

[0015] As a preferred embodiment of the present invention for the connection node between the building column and the bridge in the structure of the covered bridge, the drive shaft movably passes through the middle of the upper part of the fixed support plate, and the hexagonal pin and the hexagonal socket are inserted and fixed to each other.

[0016] As a preferred embodiment of the present invention for the connection node between the building column and the bridge in a covered bridge structure, the limiting component includes a pull rope fixedly installed at one end of the drive shaft away from the hexagonal pin, and a trapezoidal push block fixedly connected to the other end of the pull rope. A fixed groove is slidably provided on the outside of the trapezoidal push block. The fixed groove is fixedly installed on the upper side wall of the retracted end of the telescopic rod. A limiting top rod is abutted on the upper part of the inclined surface of the trapezoidal push block. A small ball is abutted on the upper part of the limiting top rod. A small circular groove is engaged on the upper part of the small ball. The small circular groove is opened on the outer ring side of the lower surface of the supporting ring.

[0017] As a preferred embodiment of the present invention for the connection node between the building column and the bridge structure of the corridor bridge, the limiting top rod and the small ball are fitted with a fixing sleeve rod. The fixing sleeve rod is fixedly installed on the upper side wall of the retracted end of the telescopic rod. The inner cavity of the fixing sleeve rod and the inner cavity of the fixing slide groove are both provided with a return spring. The return spring is used to reset the small ball and the trapezoidal push block respectively.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. Through the synergistic effect of the base plate, column base stiffening ribs, column base fixing bolts, anchor box studs, and filling concrete in the fixed components, the corridor bridge columns and bridge structure are rigidly connected, reducing the column top bending moment. This eliminates the need for excessively large component cross-sectional dimensions, saving materials, reducing the self-weight of the bridge structure, and optimizing the stress state of the bridge.

[0020] 2. By using the precise coordination of the reciprocating lateral movement component and the lifting adjustment component in the leveling mechanism for leveling, and by using the fixed mechanism to lock the lateral movement and lifting components synchronously after leveling through hexagonal pins and limit components, the effects of earthquakes and traffic vibrations are effectively resisted, the misalignment of the bridge structure is avoided, the structural stress performance is ensured, and component damage is prevented. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. 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.

[0022] Figure 1 This is an overall schematic diagram of the building columns and bridge connection nodes used in the covered bridge structure.

[0023] Figure 2 This is a schematic diagram showing the location of the leveling structure at the connection point between the building columns and the bridge structure used in the covered bridge.

[0024] Figure 3 An enlarged schematic diagram of the leveling structure used for the connection between the building columns and the bridge in the covered bridge structure;

[0025] Figure 4 An exploded view of the leveling structure used for the connection between the building columns and the bridge in a covered bridge structure;

[0026] Figure 5 This is a front view schematic diagram of the lifting and adjusting components used in the connection nodes between the building columns and the bridge structure of the covered bridge.

[0027] Figure 6 This is a rear view schematic diagram of the lifting and adjusting components used in the connection nodes between the building columns and the bridge structure of the covered bridge.

[0028] Figure 7 A front view schematic diagram of the lifting and adjusting assembly used in the connection nodes between the building columns and the bridge structure of the covered bridge.

[0029] Figure 8 This is a side sectional view of the lifting and adjusting assembly used in the connection nodes between the building columns and the bridge structure of the covered bridge.

[0030] Figure 9 for Figure 8 An enlarged schematic diagram of the structure at point A.

[0031] In the diagram: 10. Bridge crossbeam; 11. Bridge longitudinal beam; 12. Anchor box; 13. Bridge deck concrete; 14. Corridor bridge column; 15. Fixing component; 151. Base plate; 152. Column base stiffening rib; 153. Column base fixing bolt; 154. Nut; 155. Stud; 20. Lower circular plate; 21. Upper circular plate; 22. Reciprocating lateral movement component; 221. Fixed support plate; 222. T-shaped groove; 223. T-shaped slider; 224. Square guide block; 225. Threaded rod; 226. Hexagonal... 23. Socket; 231. Lifting and adjusting assembly; 232. Fixed base; 233. Push rod; 234. Telescopic rod; 235. Support ring; 236. Knob; 237. Lifting and adjusting rod; 238. Large circular groove; 239. Large sphere; 30. Drive shaft; 31. Hexagonal pin; 32. Limiting assembly; 321. Pull rope; 322. Trapezoidal push block; 323. Fixed slide groove; 324. Limiting top rod; 325. Small sphere; 326. Small circular groove; 327. Fixed sleeve rod; 328. Return spring. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 1 - Figure 9 A connection node between a building column and a bridge for a covered bridge structure is provided, which achieves the effects of rapid leveling, stable connection and convenient installation between the column and the bridge. It includes a bridge crossbeam 10 and a bridge longitudinal beam 11 in the covered bridge structure. Anchor boxes 12 are fixedly installed at the lower part of the bridge crossbeam 10 and the bridge longitudinal beam 11. Bridge deck concrete 13 is installed on the upper part of the bridge crossbeam 10 and the bridge longitudinal beam 11. Several covered bridge columns 14 are installed on the upper part of the bridge deck concrete 13. Fixing components 15 are installed at the lower part of the covered bridge columns 14 for fixing to the bridge crossbeam 10, the bridge longitudinal beam 11 and the bridge deck concrete 13.

[0034] The leveling mechanism includes a lower circular plate 20 fixedly installed at the upper part of the connection between the bridge crossbeam 10 and the bridge longitudinal beam 11, an upper circular plate 21 is provided on the upper part of the lower circular plate 20, and a plurality of reciprocating lateral movement components 22 and lifting adjustment components 23 are provided between the lower circular plate 20 and the upper circular plate 21. The reciprocating lateral movement components 22 and the lifting adjustment components 23 cooperate with each other to achieve the leveling of the upper circular plate 21.

[0035] The fixing mechanism includes a drive shaft 30 disposed in the reciprocating transverse component 22. One end of the drive shaft 30 is provided with a hexagonal pin 31 for fixing and limiting the reciprocating transverse component 22, and the other end of the drive shaft 30 is provided with a limit component 32 for fixing and limiting the lifting adjustment component 23.

[0036] The fixing component 15 includes a base plate 151 that abuts against the bottom surface of the column base of the bridge column 14. Several column base stiffening ribs 152 are fixedly installed on the upper part of the base plate 151. The column base stiffening ribs 152 are fixedly connected to the bridge column 14. Several column base fixing bolts 153 are provided between the several column base stiffening ribs 152. The column base fixing bolts 153 pass through the lower circular plate 20 and the upper circular plate 21, as well as the bridge crossbeam 10 and the bridge longitudinal beam 11. Both ends of the column base fixing bolts 153 are threaded with nuts 154. The fixing component 15 also includes studs 155 fixedly installed in the inner cavity. The studs 155 are used to increase stability when concrete is poured in the inner cavity of the anchor box 12.

[0037] The bridge superstructure is a steel-concrete composite beam structure. To facilitate the subsequent installation of the fixed anchor boxes 12, the steel beams of the composite beam structure are welded H-beams, which consist of an upper flange, a lower flange, and a web, forming an open cross-section. This type of bridge first forms a beam grid support structure by welding the H-beams longitudinally to form bridge crossbeams 10 and transversely to bridge longitudinal beams 11. Then, bridge deck concrete 13 is poured on the top surface of its upper flange. The bridge deck concrete 13 is used for vehicle and pedestrian traffic during bridge operation, fulfilling its traffic function. It also transfers live loads to the substructure, which consists of the bridge crossbeams 10 and longitudinal beams 11, further transferring them to the substructure and foundation.

[0038] The bridge pillar 14 is made of steel, which effectively reduces the self-weight of the structure on the bridge and facilitates on-site connection with the bridge crossbeams 10 and longitudinal beams 11. A base plate 151 is installed at the connection between the bridge pillar 14 and the bridge crossbeams 10 and longitudinal beams 11, and the base plate 151 is connected to the bridge pillar 14 by welding. To meet the stress requirements at the connection between the bridge pillar 14 and the base plate 151, stiffening ribs 152 are usually installed at the connection between the pillar base and the base plate 151. During factory processing, bolt holes are pre-drilled in the base plate 151, and the bridge pillar 14 is later fixed to the bridge crossbeams 10 and longitudinal beams 11 using pillar base fixing bolts 153.

[0039] The anchor box 12, fixed at the column base, is installed under the bridge deck concrete 13 of the bridge superstructure. Its main purpose is to increase the anchorage length of the column base fixing bolts 153, thereby ensuring that the connection between the bridge column 14 and the bridge crossbeam 10 and the bridge longitudinal beam 11 is a fixed connection. The anchor box 12 is made of steel plate and consists of four side plates and one bottom steel plate. They are connected to each other by welding and finally fixed to the bottom of the upper flange of the upper H-shaped steel beam of the bridge crossbeam 10 and the bridge longitudinal beam 11 by welding.

[0040] Inside the anchor box 12, studs 155 are installed on the side walls, and the anchor box 12 is filled with concrete to increase the overall rigidity of the anchor box 12. The concrete is self-compacting concrete, which can ensure the compaction of the concrete without vibration. At the same time, an expansion agent is added to the concrete to ensure that the concrete fills the anchor box 12.

[0041] The main function of the column base fixing bolt 153 is to connect the corridor bridge column 14 and the fixed anchor box 12. After passing through the bolt holes reserved in the base plate 151 and the steel plate under the anchor box 12, it is tightened with the upper and lower nuts 154.

[0042] Several reciprocating transverse components 22 include a fixed support plate 221 fixedly mounted on the upper surface of the lower circular plate 20. A U-shaped groove 222 is formed on the upper part of the fixed support plate 221. A U-shaped slider 223 is slidably mounted inside the U-shaped groove 222. A square guide block 224 is fixedly mounted at the lower center of the U-shaped slider 223. A threaded rod 225 is threaded through the center of the square guide block 224. The threaded rod 225 drives the square guide block 224 and the U-shaped slider 223 to reciprocate within the cavity of the U-shaped groove 222. The threaded rod 225 is rotatably connected to the fixed support plate 221, and one end of the threaded rod 225 away from the square guide block 224 movably passes through the side wall of the fixed support plate 221. A hexagonal insertion hole 226 is formed at the center of the end of the threaded rod 225 that movably passes through the side wall of the fixed support plate 221. The hexagonal insertion hole 226 facilitates rotation of the threaded rod 225 for driving. The square guide block 224 reciprocates, and several lifting adjustment components 23 include two fixed seats 231 fixedly mounted on the upper part of the T-shaped slider 223. Each fixed seat 231 is rotatably mounted with a push rod 232. The end of the push rod 232 away from the fixed seat 231 is rotatably connected to a telescopic rod 233. The telescopic end of the telescopic rod 233 is fixedly connected to the bottom surface of the inner cavity of the T-shaped groove 222. The top surface of the retracted end of the telescopic rod 233 is fixedly mounted with a support ring 234. The upper part of the support ring 234 is rotatably connected with a knob 235. The inner cavity of the knob 235 is threadedly connected to a lifting adjustment rod 236. The upper part of the lifting adjustment rod 236 is fixedly connected to the lower surface of the upper circular plate 21. The lifting adjustment component 23 also includes a large circular groove 237 fixedly mounted in the middle of the upper surface of the lower circular plate 20. A large sphere 238 is mounted on the upper part of the large circular groove 237. The upper surface of the large sphere 238 is fixedly connected to the lower surface of the upper circular plate 21.

[0043] The combination of the T-shaped groove 222 and the slider enables precise guidance for lateral movement, preventing deviation. The threaded transmission structure allows for fine-tuning of the input amount. The hexagonal socket 226 design facilitates quick operation with tools, improving leveling efficiency and accuracy. The push rod 232 and telescopic rod 233 work together to provide auxiliary support for lifting and lowering adjustment, enhancing structural load-bearing stability. The threaded lifting and lowering adjustment rod 236 enables fine-tuning of height. The combination of the large ball 238 and the large circular groove 237 provides all-around rotational support for the upper circular plate 21, ensuring uniform force distribution during leveling and preventing localized damage.

[0044] The drive shaft 30 movably passes through the upper middle part of the fixed support plate 221, and the hexagonal pin 31 and the hexagonal socket 226 are inserted and fixed to each other. The limiting component 32 includes a pull rope 321 fixedly installed at one end of the drive shaft 30 away from the hexagonal pin 31. The other end of the pull rope 321 is fixedly connected to a trapezoidal push block 322. The trapezoidal push block 322 has a fixed groove 323 slidably installed on the outside. The fixed groove 323 is fixedly installed on the upper side wall of the retracted end of the telescopic rod 233. A limiting top rod 324 is abutted on the upper part of the inclined surface of the trapezoidal push block 322. A small ball 325 is abutted on the upper part of the rod 324. A small circular groove 326 is snapped onto the upper part of the small ball 325. The small circular groove 326 is opened on the outer ring side of the lower surface of the support ring 234. A fixing sleeve 327 is sleeved on the outside of the limiting rod 324 and the small ball 325. The fixing sleeve 327 is fixedly installed on the upper side wall of the retracted end of the telescopic rod 233. A return spring 328 is provided in the inner cavity of the fixing sleeve 327 and the inner cavity of the fixing groove 323. The return spring 328 is used to reset the small ball 325 and the trapezoidal push block 322 respectively.

[0045] The horizontal movement component is mechanically locked by inserting the hexagonal pin 31 into the socket. The pull rope 321 drives the trapezoidal push block 322 to drive the limit rod 324. The lifting component is fixed by the engagement of the small ball 325 and the small groove 326. The return spring 328 ensures that the component automatically returns to its position after unlocking. The overall structure achieves one-button synchronous locking after leveling, which is convenient to operate and reliable in locking, effectively preventing the component from loosening due to vibration.

[0046] In use, firstly, the anchor box 12, which is welded from four side plates and a lower steel plate, is fixed to the bottom of the upper flange of the H-shaped bridge crossbeam 10 and the bridge longitudinal beam 11. Studs 155 are pre-installed on the side wall of the anchor box 12. Self-compacting concrete with added expansion agent is poured into the inner cavity of the anchor box 12. The self-compacting concrete ensures density without vibration, while the studs 155 enhance the bond between the concrete and the anchor box 12, strengthening the overall rigidity of the anchor box 12. Simultaneously, bolt holes are pre-drilled in the base plate 151 of the corridor bridge column 14 during factory processing. The base plate 151 is welded to the corridor bridge column 14, and stiffening ribs 152 are installed at the connection to strengthen the bearing area and shear resistance. Then, the assembled corridor bridge column 14 is hoisted to the predetermined position on the bridge, aligning the column foot fixing bolts 153 with the pre-drilled holes in the lower steel plate and base plate 151 of the anchor box 12. After initial insertion, the nuts 154 are not tightened immediately.

[0047] Next, the leveling stage begins. The lower circular plate 20 of the leveling mechanism is pre-fixed to the upper part of the connection between the bridge crossbeam 10 and the bridge longitudinal beam 11. The upper circular plate 21 achieves omnidirectional rotational support through the cooperation of the large sphere 238 and the large circular groove 237 of the lower circular plate 20, ensuring uniform force distribution during the leveling process. The operator inserts a tool into the hexagonal insertion hole 226 of the threaded rod 225 in the reciprocating lateral movement component 22. Rotating the threaded rod 225 drives the square guide block 224 to move the U-shaped slider 223 precisely back and forth within the U-shaped groove 222 of the fixed support plate 221, achieving fine-tuning of the lateral position. At the same time, by rotating the knob 235 of the lifting adjustment component 23, the lifting adjustment rod 236 is moved up and down using threaded transmission. With the auxiliary support of the push rod 232 and the telescopic rod 233, the height of the upper circular plate 21 is finely adjusted. The lateral and vertical adjustments work together to finally complete the precise leveling of the corridor bridge column 14.

[0048] Finally, during the synchronous fixing stage, after leveling, the hexagonal pin 31 at one end of the drive shaft 30 is inserted into the hexagonal socket 226 of the threaded rod 225 to achieve mechanical locking of the reciprocating lateral movement component 22 and prevent lateral displacement. At the same time, the other end of the drive shaft 30 pulls the trapezoidal push block 322 through the pull rope 321 to slide in the fixed slide groove 323. The inclined surface of the trapezoidal push block 322 pushes the limiting top rod 324 upward, so that the small ball 325 is inserted into the small round groove 326 on the lower surface of the supporting ring 234, completing the fixed limit of the lifting adjustment component 23 and preventing vertical loosening. The return spring 328 in the fixed sleeve rod 327 ensures that each component automatically returns to its position after unlocking. Then, the nuts 154 at both ends of the column base fixing bolts 153 are tightened to make the base plate 151, upper round plate 21, lower round plate 20, bridge crossbeam 10, and bridge longitudinal beam 11 fit tightly together, realizing the rigid connection between the corridor bridge column 14 and the bridge structure. At this point, the stiffening ribs 152 at the column base enhance shear resistance, the through-type column base fixing bolts 153 resist vertical pressure, and the anchor box 12, together with the internal concrete and studs 155, improve the anchoring effect. The synergistic effect of multiple fixing structures effectively resists horizontal thrust and torque, ensuring the long-term reliability of the connection between the corridor bridge column 14 and the bridge.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A connection node between a building column and a bridge structure for a covered bridge, characterized in that: It includes the bridge cross beam (10) and the bridge longitudinal beam (11) in the covered bridge structure. An anchor box (12) is fixedly arranged below the bridge cross beam (10) and the bridge longitudinal beam (11). The upper part of the bridge cross beam (10) and the bridge longitudinal beam (11) is provided with deck concrete (13). A number of covered bridge columns (14) are arranged on the upper part of the deck concrete (13). A fixing component (15) is arranged at the lower part of the covered bridge column (14) for fixing with the bridge cross beam (10), the bridge longitudinal beam (11) and the deck concrete (13). The leveling mechanism includes a lower circular plate (20) fixedly arranged on the upper part of the joint of the bridge cross beam (10) and the bridge longitudinal beam (11). An upper circular plate (21) is arranged on the upper part of the lower circular plate (20). A number of reciprocating transverse movement components (22) and lifting adjustment components (23) are arranged between the lower circular plate (20) and the upper circular plate (21). The reciprocating transverse movement components (22) and the lifting adjustment components (23) cooperate with each other to achieve the leveling of the upper circular plate (21). The fixing mechanism includes a transmission shaft (30) arranged in the reciprocating transverse movement component (22). A hexagonal plug (31) for fixedly limiting the reciprocating transverse movement component (22) is arranged at one end of the transmission shaft (30). A limiting component (32) is arranged at the other end of the transmission shaft (30). The limiting component (32) is used for fixedly limiting the lifting adjustment component (23).

2. The connection node between a building column and a bridge for a covered bridge structure according to claim 1, characterized in that: The fixing component (15) includes a bottom plate (151) abutted against the bottom surface of the column foot of the covered bridge column (14). A number of column foot stiffening ribs (152) are fixedly arranged on the upper part of the bottom plate (151). The column foot stiffening ribs (152) are fixedly connected with the covered bridge column (14). A number of column foot fixing bolts (153) are arranged between the column foot stiffening ribs (152). The column foot fixing bolts (153) penetrate through the lower circular plate (20), the upper circular plate (21), the bridge cross beam (10) and the bridge longitudinal beam (11). Nuts (154) are threadedly connected to both ends of the column foot fixing bolts (153).

3. The connection node between a building column and a bridge for a covered bridge structure according to claim 2, characterized in that: The fixing component (15) further includes a stud (155) fixedly arranged in the inner cavity. The stud (155) is used to increase the stability when pouring concrete in the inner cavity of the anchor box (12).

4. The connection node between a building column and a bridge for a covered bridge structure according to claim 1, characterized in that: A number of the reciprocating transverse movement components (22) include a fixed support plate (221) fixedly arranged on the upper surface of the lower circular plate (20). A +-shaped groove (222) is formed in the upper part of the fixed support plate (221). A +-shaped slider (223) is slidably arranged in the inner cavity of the +-shaped groove (222). A square guide block (224) is fixedly arranged at the lower middle part of the +-shaped slider (223). A threaded rod (225) is threadedly penetrated through the middle part of the square guide block (224). The threaded rod (225) is used to drive the square guide block (224) and the +-shaped slider (223) to reciprocate in the inner cavity of the +-shaped groove (222).

5. A connection node between a building column and a bridge for a covered bridge structure according to claim 4, characterized in that: The threaded rod (225) is rotatably connected to the fixed support plate (221), and the end of the threaded rod (225) away from the square guide block (224) moves through the side wall of the fixed support plate (221). A hexagonal insertion hole (226) is provided in the middle of the end of the threaded rod (225) that moves through the side wall of the fixed support plate (221). The hexagonal insertion hole (226) is used to facilitate the rotation of the threaded rod (225) to drive the square guide block (224) to reciprocate.

6. The connection node between a building column and a bridge for a covered bridge structure according to claim 1, characterized in that: The lifting adjustment components (23) include two fixed seats (231) fixedly mounted on the upper part of the grass-shaped slider (223). Each of the two fixed seats (231) is rotatably mounted with a push rod (232). The end of the push rod (232) away from the fixed seat (231) is rotatably connected to a telescopic rod (233). The telescopic end of the telescopic rod (233) is fixedly connected to the bottom surface of the inner cavity of the grass-shaped groove (222). The top surface of the retracted end of the telescopic rod (233) is fixedly mounted with a support ring (234). The upper part of the support ring (234) is rotatably connected with a knob (235). The inner cavity of the knob (235) is threadedly connected with a lifting adjustment rod (236). The upper part of the lifting adjustment rod (236) is fixedly connected to the lower surface of the upper circular plate (21).

7. A connection node between a building column and a bridge for a covered bridge structure according to claim 6, characterized in that: The lifting adjustment assembly (23) also includes a large circular groove (237) fixedly disposed in the middle of the upper surface of the lower circular plate (20), and a large sphere (238) is disposed on the upper part of the large circular groove (237), and the upper surface of the large sphere (238) is fixedly connected to the lower surface of the upper circular plate (21).

8. The connection node between a building column and a bridge for a covered bridge structure according to claim 1, characterized in that: The drive shaft (30) movably passes through the middle of the upper end of the fixed support plate (221), and the hexagonal pin (31) and the hexagonal socket (226) are inserted and fixed to each other.

9. A connection node between a building column and a bridge for a covered bridge structure according to claim 1, characterized in that: The limiting component (32) includes a pull rope (321) fixedly installed at one end of the drive shaft (30) away from the hexagonal pin (31). The other end of the pull rope (321) is fixedly connected to a trapezoidal push block (322). A fixed groove (323) is slidably provided on the outside of the trapezoidal push block (322). The fixed groove (323) is fixedly installed on the upper side wall of the retracted end of the telescopic rod (233). A limiting top rod (324) is abutted on the upper part of the inclined surface of the trapezoidal push block (322). A small ball (325) is abutted on the upper part of the limiting top rod (324). A small round groove (326) is snapped on the upper part of the small ball (325). The small round groove (326) is opened on the outer ring side of the lower surface of the supporting ring (234).

10. A connection node between a building column and a bridge for a covered bridge structure according to claim 9, characterized in that: The limiting top rod (324) and the small ball (325) are fitted with a fixing sleeve rod (327). The fixing sleeve rod (327) is fixedly installed on the upper side wall of the retracted end of the telescopic rod (233). The inner cavity of the fixing sleeve rod (327) and the inner cavity of the fixing slide (323) are both provided with a return spring (328). The return spring (328) is used to reset the small ball (325) and the trapezoidal push block (322).

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