CN115976986B - Anti-seismic protection structure for ancient building bridge and installation method - Google Patents

Anti-seismic protection structure for ancient building bridge and installation method Download PDF

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Publication number
CN115976986B
CN115976986B CN202310005292.7A CN202310005292A CN115976986B CN 115976986 B CN115976986 B CN 115976986B CN 202310005292 A CN202310005292 A CN 202310005292A CN 115976986 B CN115976986 B CN 115976986B
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China
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arch
frame
mounting
shaped
arm
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CN115976986A (en
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任悦萍
万金红
钱立群
李国美
金建明
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Xinjing Construction Co ltd
China Institute of Water Resources and Hydropower Research
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Xinjing Construction Co ltd
China Institute of Water Resources and Hydropower Research
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/30Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

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Abstract

The invention discloses an anti-seismic protection structure for an ancient building bridge and an installation method, which relate to the field of ancient building seismic protection and comprise the following steps: the anti-vibration supporting mechanism is used for fixing the protection structure and buffering vibration and comprises a positioning base; at least one arched base frame arranged on the inner side of the shockproof supporting mechanism and used for being connected with the protective structure; the arch-shaped mounting frames are arranged on the inner sides of the arch-shaped base frames and are used for supporting bridges and buffering vibration, the adjacent arch-shaped mounting frames are spliced into a whole, and at least one limiting groove is formed in the middle of each arch-shaped mounting frame; and the damping ball is arranged at the bottom of the arched mounting frame and used for balancing the displacement of the bridge. According to the invention, the anti-vibration supporting mechanism, the movable frame, the arch base frame and the damping ball are arranged, so that the service life of the ancient building bridge is prolonged, and the stability of the structure is maintained.

Description

Anti-seismic protection structure for ancient building bridge and installation method
Technical Field
The invention relates to the antiknock field of ancient buildings, in particular to an antiknock protection structure for an ancient building bridge and an installation method.
Background
China is the hometown of the bridge, and is called as the country of the bridge from ancient times, and is developed in the inert world and flourished in the Song. The bridge distributed over the Shenzhou earth is woven into a four-way traffic network, and is connected with all directions of the country. The building art of the ancient Chinese bridge is not only an innovation in the bridge history of the world, but also fully shows the remarkable wisdom and talent of the ancient Chinese workers.
The ancient building bridge contains building culture accumulation of China civilization for thousands of years, is cultural magnificent of world civilization, but because the building time of the ancient building bridge is long, the internal support piece is aged to cause the unstable structure of the ancient building bridge, so that the ancient building bridge is easy to collapse when being subjected to vibration, the buffering performance of the traditional temporary support truss is insufficient, the ancient building bridge structure is difficult to return to the original position after vibration displacement, and an effective anti-seismic effect cannot be achieved on the ancient building bridge.
Disclosure of Invention
In order to solve the technical problems, the technical scheme provides an anti-seismic protection structure for an ancient building bridge and an installation method, and solves the problems that the buffering performance of the conventional temporary support truss provided in the prior art is insufficient, the ancient building bridge structure is difficult to return to an original position after vibration displacement, and an effective anti-seismic effect cannot be achieved on the ancient building bridge structure.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an earthquake-resistant protection structure for an historic building bridge, comprising:
the anti-vibration supporting mechanism is used for fixing a protection structure and buffering vibration and comprises a positioning base, an embedded inserting rod is connected to the middle of the positioning base in a threaded manner, a movable shaft is connected to the right side of the positioning base in a rotating manner, a main damper is connected to the right end of the movable shaft in a rotating manner, a fixed block is connected to the right end of the main damper in a rotating manner, a rotating shaft is fixedly connected to the right end of the fixed block, a mounting base is connected to the right end of the rotating shaft in a rotating manner, an embedded substrate is fixedly connected to the bottom of the right end of the positioning base, at least one buffer spring is fixedly connected to the upper surface of the right side of the embedded substrate, and a buffer rubber pad is fixedly connected to the top end of the buffer spring and is abutted to the bottom of the mounting base;
at least one arched base frame arranged on the inner side of the shockproof supporting mechanism and used for being connected with the protective structure;
the device comprises at least one arch-shaped mounting frame, at least one guide rail, a movable frame, at least one bearing block, a longitudinal damper, a positioning block and a positioning block, wherein the arch-shaped mounting frame is arranged on the inner side of an arch-shaped base frame and is used for supporting a bridge and buffering vibration;
the damping balls are arranged at the bottom of the arched mounting frame and are used for balancing the displacement of the bridge;
the device comprises an arched base frame, a frame connecting plate, a positioning hole, at least one bearing block, a transverse damper, a limiting block, a lower support arm and a hole, wherein the front side and the rear side of the left end of the arched base frame are fixedly connected with the reinforced mounting plate, the reinforced mounting plate is in threaded connection with at least one bolt, the front side and the rear side of the right end of the arched base frame are fixedly connected with the frame connecting plate, the side surface of the frame connecting plate is provided with the positioning hole in a penetrating way, the upper surface of the arched base frame is fixedly connected with the at least one bearing block, the bearing block is rotationally connected with the transverse damper, the right end of the transverse damper is rotationally connected with the limiting block, the limiting block is fixedly connected with the end part of the adjacent arc plate, the bottom of the arched base frame is fixedly connected with the lower support arm, and the bottom end of the lower support arm is provided with the hole in a penetrating way;
the reinforcing arm is installed at the bottom end of the lower support arm, one end, far away from the lower support arm, of the reinforcing arm is installed at the bottom end of the support leg, the arc-shaped arm is installed at the bottom end of the support leg, screw holes are formed in the two ends of the arc-shaped arm in a penetrating mode, the middle of the arc-shaped arm is connected with the rigid beam in a sliding mode, nuts are connected with the two ends of the rigid beam in a threaded mode, at least one reinforcing chain is fixedly connected with the middle of each nut, and damping balls are fixedly connected to the bottom of each reinforcing chain.
Preferably, the embedded substrate right side and front and back side all rotate and are connected with the dwang, dwang tip fixedly connected with movable block, and the positive rotation of movable block is connected with vice attenuator, and the fixed support block with the equal fixedly connected with in front and back side in mounting base right side, vice attenuator top rotate and connect in corresponding the support block surface, the mounting hole has been seted up in the mounting base front, and the mounting base passes through the mounting hole and installs the mounting panel that reinforces.
Preferably, the arc lower surface butt arch mounting bracket upper surface, adjustable shelf lower surface butt arc upper surface, the equal fixedly connected with butt joint board of side around the arch mounting bracket both ends, the butt joint hole has been run through to the butt joint board side, arch mounting bracket bottom fixedly connected with supporting leg, is adjacent the butt joint board is butt jointed each other, and the frame link plate is adjacent the butt joint board is butt jointed, and the size of butt joint hole is unanimous with the locating hole size, and butt joint hole and locating hole internal thread connection have the screw.
The method for installing the antiknock protection structure of the ancient building bridge is suitable for the antiknock protection structure of the ancient building bridge, and comprises the following steps:
and (3) field investigation: performing field survey on an ancient building bridge to be installed with an anti-seismic structure, recording survey data, and designing size data of each structural component according to the survey data;
and (3) manufacturing a component: manufacturing each structural component according to the designed size data of each structural component, wherein each structural component comprises a shockproof supporting mechanism, an arched base frame, an arched mounting frame, a reinforced arm, an arc arm and a damping ball;
the shockproof supporting mechanism is installed: embedding bases at the positions of the river levees on two sides of the bridge, embedding and welding the embedded base plates on the bases, nailing the embedded inserted bars into the river levees, and supporting and fixing the positioning bases;
and (3) installing an arch base frame: the reinforced mounting plate is in butt joint with the mounting base, the reinforced mounting plate is arranged on the lower surface of the bridge, a certain distance exists between the reinforced mounting plate and the lower surface of the bridge, the distance is used for accommodating the transverse damper, bolts are screwed into the reinforced mounting plate and the mounting holes, and the arched base frame is fixed on the shockproof supporting mechanism;
and (3) installing an arch-shaped installation frame: the arch-shaped mounting frames are butted on the inner side of the arch-shaped base frame according to a design drawing, the arch-shaped mounting frames are arranged on the lower surface of the bridge, a certain distance exists between the arch-shaped mounting frames and the lower surface of the bridge, the distance is used for accommodating the movable frame and the arc-shaped plate, the positioning holes and the butting holes are mutually aligned, screws are screwed into the positioning holes and the butting holes, the arch-shaped mounting frames are fixed on the arch-shaped base frame, the arch-shaped mounting frames are mutually butted in sequence according to the design drawing, the butting holes are mutually butted, screws are screwed into the butting holes, and the arch-shaped mounting frames are fixed;
and (3) reinforcing arm installation: the strengthening arm is in butt joint with the lower support arm and the adjacent support leg, screws are screwed into two ends of the strengthening arm, and the strengthening arm is fixed at the bottom ends of the lower support arm and the support leg;
arc arm installation: the arc-shaped arm is in butt joint with the bottom end of the adjacent supporting leg, a screw is screwed into a screw hole of the arc-shaped arm, and the arc-shaped arm is fixed at the bottom end of the supporting leg;
damping ball installation: the damping ball is welded in the middle of the rigid beam through a reinforced chain, the rigid beam is inserted in the middle of the arc-shaped arm, and nuts are arranged at two ends of the rigid beam;
and after the installation is finished, detecting the earthquake-resistant structure.
Preferably, a transverse damper is arranged on the surface of the arched base frame, and the limiting block is welded at the end part of the adjacent arc-shaped plate.
Preferably, the movable frame and the arc plate are stacked on the arch-shaped mounting frame in advance, the upper surface of the movable frame is abutted to the lower surface of the bridge, and the front side and the rear side of the inner part of the movable frame are abutted to the front side and the rear side of the bridge.
Preferably, a certain interval exists between the movable frame and the arched mounting frame, and the interval is used for mounting the longitudinal damper.
Preferably, the detection of the earthquake-resistant structure specifically comprises: and carrying out earthquake-resistant detection on the assembled earthquake-resistant structure, and checking the assembly installation effect by using manual shaking or strong machine shaking.
Compared with the prior art, the invention provides the earthquake-resistant protection structure for the ancient building bridge and the installation method, and the earthquake-resistant protection structure has the following beneficial effects:
through setting up supporting mechanism, adjustable shelf, arch bed frame and damping ball take precautions against earthquakes, support the bridge, reduce its own gravity's load, simultaneously, can strengthen shock-resistant protective structure's buffer performance, whole shock-resistant protective structure can follow the vibrations of the different directions of bridge, produce the displacement to can make bridge structure resume the normal position after vibrations, thereby reduce the loss of vibrations to the bridge, and then promote the life of ancient building bridge, maintain the stability of its structure.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of a shock-proof supporting mechanism according to the present invention;
FIG. 3 is a schematic view of an explosion configuration of an arch-shaped mounting bracket of the present invention;
FIG. 4 is a schematic view of the arcuate arm and damping ball mounting structure of the present invention;
FIG. 5 is a schematic view of an arch-shaped base frame structure according to the present invention;
the reference numerals in the figures are:
101. a reinforcing arm; 102. an arc arm; 103. a rigid beam; 104. a screw hole; 105. a screw cap; 106. a reinforcement chain; 107. damping balls; 108. strengthening the mounting plate; 109. a bolt; 110. an arched base frame; 111. the frame is connected with the plate; 112. positioning holes; 113. a limiting block; 114. a lateral damper; 115. a bearing block; 116. a lower support arm; 117. a hole;
200. a shockproof supporting mechanism; 201. positioning a base; 202. embedding a inserted link; 203. a movable shaft; 204. a main damper; 205. a fixed block; 206. a rotating shaft; 207. a mounting base; 208. a mounting hole; 209. a support block; 210. a secondary damper; 211. a movable block; 212. a rotating lever; 213. a buffer spring; 214. buffering rubber cushion; 215. pre-burying a substrate;
301. a movable frame; 302. a receiving block; 303. a positioning block; 304. a longitudinal damper; 305. a guide rail; 306. an arc-shaped plate; 307. a guide bar; 308. a guide groove; 309. a butt joint hole; 310. a limit groove; 311. an arch-shaped mounting rack; 312. support legs; 313. and an abutting plate.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
Referring to fig. 1 to 5, an earthquake-proof protection structure for an ancient building bridge and an installation method thereof, comprising:
the anti-vibration supporting mechanism 200 is used for fixing a protection structure and buffering vibration, the anti-vibration supporting mechanism 200 comprises a positioning base 201, an embedded inserting rod 202 is connected to the middle of the positioning base 201 in a threaded mode, a movable shaft 203 is connected to the right side of the positioning base 201 in a rotating mode, a main damper 204 is connected to the right end of the movable shaft 203 in a rotating mode, a fixed block 205 is connected to the right end of the main damper 204 in a rotating mode, a rotating shaft 206 is fixedly connected to the right end of the rotating shaft 206 in a rotating mode, a mounting base 207 is connected to the right end of the rotating shaft 206 in a rotating mode, an embedded base 215 is fixedly connected to the bottom of the right end of the positioning base 201, at least one buffer spring 213 is fixedly connected to the upper surface of the right side of the embedded base 215, a buffer rubber pad 214 is fixedly connected to the top end of the buffer spring 213, and the buffer rubber pad 214 is abutted to the bottom of the mounting base 207;
the vibration-proof supporting mechanism 200 buffers and supports the whole movement of the bridge, the bridge is connected with the vibration-proof supporting mechanism 200 through the arch-shaped base frame 110, the whole supporting force is from the vibration-proof supporting mechanism 200, when the bridge vibrates, the installation base 207 is driven to move, the installation base 207 drives the buffer rubber pad 214 to generate certain displacement, when the installation base 207 displaces, the main damper 204 and the auxiliary damper 210 absorb the energy generated by the displacement, the amplitude of the displacement is reduced, and the bridge finally swings back to the original position along with the gradual reduction of the vibration of the bridge;
at least one arched frame 110 disposed inside the shock-proof supporting mechanism 200, the arched frame 110 being used for connecting a protection structure, the arched frame 110 not being in direct contact with the bridge, only providing supporting and conducting forces;
the at least one arched mounting frame 311 is arranged on the inner side of the arched base frame 110, the arched mounting frames 311 are used for supporting bridges and buffering vibration, the adjacent arched mounting frames 311 are spliced into a whole, at least one limiting groove 310 is formed in the middle of each arched mounting frame 311, a guide bar 307 is connected in a sliding manner in the limiting groove 310, an arc-shaped plate 306 is fixedly connected to the top of each guide bar 307, at least one guide groove 308 is formed in the middle of each arc-shaped plate 306, a guide rail 305 is connected in a sliding manner in each guide groove 308, a movable frame 301 is fixedly connected to the top of each guide rail 305, at least one bearing block 302 is fixedly connected to the front side and the rear side of each movable frame 301, a longitudinal damper 304 is connected to the bearing block 302 in a rotating manner, a positioning block 303 is connected to the bottom end of each longitudinal damper 304 in a rotating manner, and the positioning block 303 is fixedly connected to the inner side of each arched mounting frame 311;
the movable frame 301 on the arch-shaped mounting frame 311 is used for balancing the longitudinal vibration of the bridge, the longitudinal damper 304 absorbs the longitudinal vibration of the bridge once, and finally the vibration is transmitted to the shockproof support mechanism 200 through the arch-shaped mounting frame 311 and the arch-shaped base frame 110;
the arc plate 306 is used for balancing the transverse vibration of the bridge, and the arc plate 306 is transmitted to the arched pedestal 110 through the transverse damper 114 along with the transverse vibration of the bridge and finally transmitted to the shockproof support mechanism 200;
at least one damping ball 107 sets up in arch mounting bracket 311 bottom, damping ball 107 is used for the displacement of balanced bridge, and when the force of bridge vibrations is too big, only rely on the balance of shockproof supporting mechanism 200, is insufficient to absorb all vibrations, relies on damping ball 107 huge inertia, and the too big force when can balance and absorb the bridge vibrations maintains the stability of whole device, and the range that restricts whole device to rock is in very little scope for shockproof supporting mechanism 200 can balance the vibrations of whole device in this scope.
Specifically, the right side and the front and back sides of the embedded substrate 215 are both rotationally connected with a rotating rod 212, the end part of the rotating rod 212 is fixedly connected with a movable block 211, the front side of the movable block 211 is rotationally connected with a secondary damper 210, the right side of the mounting base 207 is fixedly connected with a supporting block 209 and the front and back sides of the mounting base 207 are both fixedly connected with supporting blocks 209, the top end of the secondary damper 210 is rotationally connected to the surface corresponding to the supporting block 209, the front side of the mounting base 207 is provided with a mounting hole 208, and the mounting base 207 is provided with a reinforced mounting plate 108 through the mounting hole 208.
The front side and the back side of the left end of the arched base frame 110 are fixedly connected with a reinforced mounting plate 108, the reinforced mounting plate 108 is in threaded connection with at least one bolt 109, the front side and the back side of the right end of the arched base frame 110 are fixedly connected with a frame connecting plate 111, the side surface of the frame connecting plate 111 is penetrated and provided with a positioning hole 112, the upper surface of the arched base frame 110 is fixedly connected with at least one bearing block 115, the bearing block 115 is rotationally connected with a transverse damper 114, the right end of the transverse damper 114 is rotationally connected with a limiting block 113, the limiting block 113 is fixedly connected with the end part of an adjacent arc plate 306, the bottom of the arched base frame 110 is fixedly connected with a lower support arm 116, and the bottom end of the lower support arm 116 is penetrated and provided with a hole 117.
The lower surface butt arch mounting bracket 311 upper surface of arc 306, the lower surface butt arc 306 upper surface of movable frame 301, the equal fixedly connected with butt joint board 313 of arc mounting bracket 311 both ends front and back side, the butt joint hole 309 has been seted up in the penetration of butt joint board 313 side, the fixedly connected with supporting leg 312 of arch mounting bracket 311 bottom, adjacent butt joint board 313 dock each other, frame link plate 111 with adjacent butt joint board 313 dock, the size of butt joint hole 309 is unanimous with locating hole 112 size, butt joint hole 309 and locating hole 112 female connection have the screw.
The reinforcing arm 101 is installed at the bottom end of the lower support arm 116, one end, far away from the lower support arm 116, of the reinforcing arm 101 is installed at the bottom end of the supporting leg 312, the arc-shaped arm 102 is installed at the bottom end of the supporting leg 312, the screw holes 104 are formed in the two ends of the arc-shaped arm 102 in a penetrating mode, the middle of the arc-shaped arm 102 is connected with the rigid beam 103 in a sliding mode, two ends of the rigid beam 103 are connected with the nuts 105 in a threaded mode, at least one reinforcing chain 106 is fixedly connected with the middle of the nuts 105, and the damping balls 107 are fixedly connected to the bottoms of the reinforcing chains 106.
The method for installing the antiknock protection structure of the ancient building bridge is suitable for the antiknock protection structure of the ancient building bridge, and comprises the following steps:
and (3) field investigation: performing field survey on an ancient building bridge to be installed with an anti-seismic structure, recording survey data, and designing size data of each structural component according to the survey data;
and (3) manufacturing a component: manufacturing each structural component according to the designed size data of each structural component, wherein each structural component comprises a shockproof support mechanism 200, an arched base frame 110, an arched mounting frame 311, a reinforced arm 101, an arched arm 102 and a damping ball 107;
the shockproof support mechanism 200 is installed: embedding bases at the positions of the river banks on two sides of the bridge, embedding and welding the embedded base plates 215 on the bases, nailing the embedded inserted bars 202 into the river banks, and supporting and fixing the positioning bases 201;
the arched base frame 110 is mounted: the reinforced mounting plate 108 is in butt joint with the mounting base 207, the reinforced mounting plate 108 is arranged on the lower surface of the bridge, a certain distance exists between the reinforced mounting plate 108 and the lower surface of the bridge, the distance is used for accommodating the transverse damper 114, bolts 109 are screwed into the reinforced mounting plate 108 and the mounting holes 208, and the arched base frame 110 is fixed on the shockproof support mechanism 200;
the arch-shaped mounting frame 311 is mounted: the arched mounting frames 311 are butted on the inner side of the arched base frames 110 according to a design drawing, the arched mounting frames 311 are arranged on the lower surface of the bridge, a certain interval exists between the arched mounting frames 311 and the lower surface of the bridge, the interval is used for accommodating the movable frames 301 and the arc plates 306, the positioning holes 112 and the butting holes 309 are mutually aligned, screws are screwed into the positioning holes 112 and the butting holes 309, the arched mounting frames 311 are fixed on the arched base frames 110, the arched mounting frames 311 are mutually butted in sequence according to the design drawing, the butting holes 309 are mutually butted, the screws are screwed into the butting holes 309, and the arched mounting frames 311 are fixed;
reinforcing arm 101 is mounted: the strengthening arm 101 is butted with the lower support arm 116 and the adjacent support leg 312, screws are screwed into the two ends of the strengthening arm 101, and the strengthening arm 101 is fixed at the bottom ends of the lower support arm 116 and the support leg 312;
arc arm 102 is mounted: the arc-shaped arm 102 is abutted to the bottom end of the adjacent supporting leg 312, and screws are screwed into the screw holes 104 of the arc-shaped arm 102 to fix the arc-shaped arm 102 to the bottom end of the supporting leg 312;
damping ball 107 is mounted: the damping balls 107 are welded in the middle of the rigid beam 103 through the reinforced chains 106, the rigid beam 103 is inserted in the middle of the arc-shaped arm 102, and nuts 105 are arranged at two ends of the rigid beam 103;
and after the installation is finished, detecting the earthquake-resistant structure.
The arched pedestal 110 is provided with a transverse damper 114 on the surface, and a limiting block 113 is welded at the end part adjacent to the arc plate 306.
The movable frame 301 and the arc plate 306 are stacked on the arc-shaped mounting frame 311 in advance, the upper surface of the movable frame 301 is abutted to the lower surface of the bridge, and the front side and the rear side of the interior of the movable frame 301 are abutted to the front side and the rear side of the bridge.
There is a space between the movable frame 301 and the arch-shaped mounting frame 311 for mounting the longitudinal damper 304.
The earthquake-resistant structure detection specifically comprises: and carrying out earthquake-resistant detection on the assembled earthquake-resistant structure, and checking the assembly installation effect by using manual shaking or strong machine shaking.
The working principle and the using flow of the invention are as follows: through setting up supporting mechanism 200, adjustable shelf 301, arch bed frame 110 and damping ball 107 take precautions against earthquakes, support the bridge, reduce its own gravity's load, simultaneously, can strengthen shock-resistant protective structure's buffer performance, whole shock-resistant protective structure can follow the vibrations of the different directions of bridge, produce the displacement to can make bridge structure resume the normal position after vibrations, thereby reduce the loss of vibrations to the bridge, and then promote the life of ancient building bridge, maintain the stability of its structure.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. An anti-seismic protection structure for an ancient building bridge, comprising:
the anti-vibration support mechanism (200) is used for fixing a protection structure and buffering vibration, the anti-vibration support mechanism (200) comprises a positioning base (201), an embedded inserting rod (202) is connected to the middle of the positioning base (201) in a threaded mode, a movable shaft (203) is connected to the right side of the positioning base (201) in a rotating mode, a main damper (204) is connected to the right end of the movable shaft (203) in a rotating mode, a fixing block (205) is connected to the right end of the main damper (204) in a rotating mode, a rotating shaft (206) is connected to the right end of the fixing block (205) in a fixed mode, an installation base (207) is connected to the right end of the rotating shaft (206) in a rotating mode, an embedded base plate (215) is fixedly connected to the bottom of the right end of the positioning base (201), at least one buffer spring (213) is fixedly connected to the upper surface of the right side of the embedded base plate (215), and a buffer rubber pad (214) is fixedly connected to the top of the buffer spring (213), and the buffer rubber pad (214) is abutted to the bottom of the installation base (207).
At least one arched base frame (110) arranged at the inner side of the shockproof support mechanism (200), wherein the arched base frame (110) is used for being connected with a protective structure;
the device comprises at least one arch-shaped mounting frame (311), wherein the arch-shaped mounting frame (311) is arranged on the inner side of an arch-shaped base frame (110), the arch-shaped mounting frames (311) are used for supporting a bridge and buffering vibration, the adjacent arch-shaped mounting frames (311) are spliced into a whole, at least one limiting groove (310) is formed in the middle of each arch-shaped mounting frame (311), a guide strip (307) is connected in a sliding mode in each limiting groove (310), an arc-shaped plate (306) is fixedly connected to the top of each guide strip (307), at least one guide groove (308) is formed in the middle of each arc-shaped plate (306), a guide rail (305) is connected in a sliding mode in each guide groove (308), a movable frame (301) is fixedly connected to the top of each guide rail (305), at least one bearing block (302) is fixedly connected to the front side and the rear side of each movable frame (301), a longitudinal damper (304) is rotatably connected to a positioning block (303), and the bottom of each longitudinal damper (304) is fixedly connected to the inner side of each positioning block (303).
At least one damping ball (107) arranged at the bottom of the arch-shaped mounting frame (311), wherein the damping ball (107) is used for balancing the displacement of the bridge;
the device comprises an arch base frame (110), wherein the front side and the rear side of the left end of the arch base frame (110) are fixedly connected with a reinforcing mounting plate (108), the reinforcing mounting plate (108) is in threaded connection with at least one bolt (109), the front side and the rear side of the right end of the arch base frame (110) are fixedly connected with a frame connecting plate (111), a positioning hole (112) is formed in the side surface of the frame connecting plate (111) in a penetrating mode, at least one bearing block (115) is fixedly connected to the upper surface of the arch base frame (110), a transverse damper (114) is rotatably connected to the bearing block (115), the right end of the transverse damper (114) is rotatably connected with a limiting block (113), the limiting block (113) is fixedly connected to the end of an adjacent arc plate (306), the bottom of the arch base frame (110) is fixedly connected with a lower support arm (116), and a hole (117) is formed in the bottom end of the lower support arm (116) in a penetrating mode;
the reinforcing arm (101) is installed to lower support arm (116) bottom, one end that lower support arm (116) was kept away from to reinforcing arm (101) is installed in supporting leg (312) bottom, arc arm (102) are installed to supporting leg (312) bottom, screw (104) have all been seted up in arc arm (102) both ends run through, arc arm (102) middle part sliding connection has rigid beam (103), screw cap (105) are connected with in rigid beam (103) both ends screw thread, at least one reinforcing chain (106) of nut (105) middle part fixedly connected with, damping ball (107) are fixedly connected with in reinforcing chain (106) bottom.
2. The earthquake-resistant protection structure for an historic building bridge of claim 1, wherein: the embedded substrate (215) right side and front and back side all rotate and are connected with dwang (212), dwang (212) tip fixedly connected with movable block (211), and movable block (211) openly rotate and are connected with vice attenuator (210), and mounting base (207) right side is fixed and front and back side all fixedly connected with supporting shoe (209), and vice attenuator (210) top rotate and connect in correspondence supporting shoe (209) surface, mounting base (207) openly have seted up mounting hole (208), and mounting base (207) are installed through mounting hole (208) and are reinforceed mounting panel (108).
3. The earthquake-resistant protection structure for an historic building bridge of claim 2, wherein: arc (306) lower surface butt arch mounting bracket (311) upper surface, activity frame (301) lower surface butt arc (306) upper surface, all fixedly connected with butt joint board (313) around arch mounting bracket (311) both ends, butt joint board (313) side runs through and has seted up butt joint hole (309), arch mounting bracket (311) bottom fixedly connected with supporting leg (312), adjacent butt joint board (313) are butt joint each other, frame link plate (111) with adjacent butt joint board (313) are butt joint, and the size of butt joint hole (309) is unanimous with locating hole (112) size, and butt joint hole (309) and locating hole (112) internal thread connection have the screw.
4. A method for installing an antivibration protection structure of an ancient building bridge, which is applicable to the antivibration protection structure for an ancient building bridge according to any one of claims 1 to 3, and is characterized by comprising the following steps:
and (3) field investigation: performing field survey on an ancient building bridge to be installed with an anti-seismic structure, recording survey data, and designing size data of each structural component according to the survey data;
and (3) manufacturing a component: manufacturing each structural component according to the designed size data of each structural component, wherein the manufacturing method comprises a shockproof supporting mechanism (200), an arched base frame (110), an arched mounting frame (311), a reinforcing arm (101), an arched arm (102) and a damping ball (107);
the shockproof supporting mechanism (200) is installed: embedding bases at the positions of the river banks on two sides of the bridge, embedding and welding an embedded base plate (215) on the bases, driving embedded inserted rods (202) into the river banks, and supporting and fixing the positioning bases (201);
-arch base (110) mounting: the reinforced mounting plate (108) is in butt joint with the mounting base (207), the reinforced mounting plate (108) is arranged on the lower surface of the bridge, a certain distance exists between the reinforced mounting plate (108) and the lower surface of the bridge, the distance is used for accommodating the transverse damper (114), bolts (109) are screwed into the reinforced mounting plate (108) and the mounting holes (208), and the arched base frame (110) is fixed on the shockproof supporting mechanism (200);
an arch-shaped mounting rack (311) is mounted: the arch-shaped mounting frame (311) is butted on the inner side of the arch-shaped base frame (110) according to a design drawing, the arch-shaped mounting frame (311) is arranged on the lower surface of the bridge, a certain interval exists between the arch-shaped mounting frame (311) and the lower surface of the bridge, the interval is used for accommodating the movable frame (301) and the arc-shaped plate (306), the positioning holes (112) and the butt joint holes (309) are mutually aligned, screws are screwed into the positioning holes (112) and the butt joint holes (309), the arch-shaped mounting frame (311) is fixed on the arch-shaped base frame (110), the arch-shaped mounting frame (311) is butted with each other according to the design drawing, the butt joint holes (309) are mutually butted, the screws are screwed into the butt joint holes (309), and the arch-shaped mounting frame (311) is fixed;
and (3) mounting a reinforcing arm (101): the strengthening arm (101) is butted on the lower support arm (116) and the adjacent supporting leg (312), screws are screwed into two ends of the strengthening arm (101), and the strengthening arm (101) is fixed at the bottom ends of the lower support arm (116) and the supporting leg (312);
arc arm (102) installation: the arc-shaped arm (102) is in butt joint with the bottom end of the adjacent supporting leg (312), a screw is screwed into a screw hole (104) of the arc-shaped arm (102), and the arc-shaped arm (102) is fixed at the bottom end of the supporting leg (312);
damping ball (107) installation: the damping balls (107) are welded in the middle of the rigid beam (103) through the reinforced chains (106), the rigid beam (103) is inserted in the middle of the arc-shaped arm (102), and nuts (105) are arranged at two ends of the rigid beam (103);
and after the installation is finished, detecting the earthquake-resistant structure.
5. The method for installing the antivibration protection structure of the historic building bridge according to claim 4, wherein the method comprises the following steps: the surface of the arched base frame (110) is provided with a transverse damper (114), and the limiting block (113) is welded at the end part of the adjacent arc-shaped plate (306).
6. The method for installing the antivibration protection structure of the historic building bridge according to claim 4, wherein the method comprises the following steps: the movable frame (301) and the arc-shaped plate (306) are stacked on the arc-shaped mounting frame (311) in advance, the upper surface of the movable frame (301) is abutted to the lower surface of the bridge, and the front side and the rear side of the interior of the movable frame (301) are abutted to the front side and the rear side of the bridge.
7. The method for installing the antivibration protection structure of the historic building bridge according to claim 4, wherein the method comprises the following steps: a certain interval is arranged between the movable frame (301) and the arched mounting frame (311), and the interval is used for mounting the longitudinal damper (304).
8. The method for installing the antivibration protection structure of the historic building bridge according to claim 4, wherein the method comprises the following steps: the anti-seismic structure detection specifically comprises: and carrying out earthquake-resistant detection on the assembled earthquake-resistant structure, and checking the assembly installation effect by using manual shaking or strong machine shaking.
CN202310005292.7A 2023-01-04 2023-01-04 Anti-seismic protection structure for ancient building bridge and installation method Active CN115976986B (en)

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CN215561860U (en) * 2021-08-25 2022-01-18 江苏泊翔结构加固工程有限公司 A shaped steel integrated configuration for consolidating bridge
CN215593653U (en) * 2021-08-17 2022-01-21 安徽翰荣建设工程有限公司 Anti-seismic fixing structure of garden corridor bridge building
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JPH09137412A (en) * 1995-11-13 1997-05-27 Osaka Bendaa Kogyo Kk Bridge reinforcing structure of viaduct
JP2005188022A (en) * 2003-12-24 2005-07-14 Mitsubishi Heavy Ind Ltd Earthquake-proof bridge
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CN207419240U (en) * 2017-09-27 2018-05-29 中铁第四勘察设计院集团有限公司 A kind of hold-down support with bidirectional damping and girder falling
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CN217356323U (en) * 2022-01-07 2022-09-02 卢浩博 Building antidetonation support with shock-absorbing function

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