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CN-117926719-B - Linear regulating and controlling equipment and method for bridge construction girder and arch rib

CN117926719BCN 117926719 BCN117926719 BCN 117926719BCN-117926719-B

Abstract

The invention relates to the technical field of intelligent bridge construction, and discloses linear regulating and controlling equipment for a girder and an arch rib of bridge construction, which comprises a girder, an arch rib, a cable and a regulator shell, wherein the arch rib is arranged on two sides of the girder, the main beam is provided with a regulator shell, the regulator shell is provided with a cable, the cable is fixedly connected with the arch rib, and the inside of the regulator shell is provided with an angle regulating unit and a tension regulating unit. According to the invention, the screw rod shaft is driven to rotate by the regulating motor, the screw rod shaft can drive the sliding sleeve to change in position after rotating, the sliding sleeve drives the guide sleeve to synchronously move, the cable is arranged in the guide sleeve, the position of the bottom of the cable can be driven to move, the connection point of the cable and the arch rib is unchanged, the angle of the cable is driven to deviate, the shape is changed, and the operation is simpler by mechanical operation, can be directly controlled remotely, and is suitable for wide popularization and use.

Inventors

  • LI HAOTIAN
  • QIU RUOFENG
  • LIU YONGJIAN
  • MA YINPING
  • WANG KUN
  • San Jianping
  • GE GUOKU
  • XIAO JUN
  • CHEN HONGJIE
  • CHEN JINGLI

Assignees

  • 中交第二公路工程局有限公司
  • 重庆大学
  • 长安大学

Dates

Publication Date
20260505
Application Date
20240307

Claims (10)

  1. 1. The linear regulation and control equipment for the bridge construction girder and arch rib comprises a girder (101), arch ribs (102), cables (103) and a regulator housing (104), and is characterized in that the arch ribs (102) are arranged on two sides of the girder (101), the regulator housing (104) is arranged on the girder (101), the cables (103) are arranged on the regulator housing (104), the cables (103) are fixedly connected with the arch ribs (102), and an angle regulation and control unit (200), a tension regulation and control unit (300) and a cable unlocking unit (400) are arranged in the regulator housing (104); The angle regulating unit (200) comprises a guide sleeve (202), a cable (103) is inserted into the guide sleeve (202), a sliding sleeve (2012) is arranged on the side wall of the guide sleeve (202), a screw shaft (201) is movably screwed in the sliding sleeve (2012), one end of the screw shaft (201) is movably arranged on the inner wall of a regulator housing (104), and a regulating motor (2011) is arranged at the end of the other end of the screw shaft; The tension regulating unit (300) comprises a rotary table (301), a spiral guide rail (3011) is arranged on the rotary table (301), a sliding block (302) is arranged on the spiral guide rail (3011) in a sliding mode, a third guide wheel (304) is movably arranged on the surface of the sliding block (302), a connecting plate (3041) is fixedly arranged on a central shaft of the third guide wheel (304), a limiting rod (3042) is inserted into the connecting plate (3041), and two ends of the limiting rod (3042) are installed on the side wall of the regulator shell (104) in a penetrating mode; Cable unblock unit (400) is including fixed block (4061), sleeve (406) are installed to fixed block (4061) lateral wall, sleeve (406) inside activity grafting is provided with locating lever (405), montant (404) are installed to locating lever (405) bottom, push pedal (403) are installed to montant (404) end, push pedal (403) end is provided with cardboard (4031), cardboard (4031) outer wall runs through and is provided with fixing base (401), and cardboard (4031) outer wall activity runs through pull ring (1031), pull ring (1031) and cable (103) fixed connection.
  2. 2. The bridge construction girder and arch rib linear regulation and control equipment according to claim 1, wherein an access door (1041) is movably installed on the regulator housing (104), the access door (1041) is mutually communicated with an internal cavity of the regulator housing (104), a handle (1042) is installed on the access door (1041), a mounting plate (1043) is arranged on the regulator housing (104), a mounting hole (1044) is formed in the mounting plate (1043), bolts are arranged in the mounting hole (1044), the bolts are screwed on the girder (101), and a total station (1013) is installed on the girder (101).
  3. 3. The bridge construction girder and arch rib linear regulation and control equipment according to claim 1, wherein a guide chute (2021) is transversely formed in the regulator housing (104), a guide sleeve (202) is slidably arranged in the guide chute (2021), a guide hole (2022) is formed in the guide sleeve (202), a cable (103) is arranged in the guide hole (2022) in a penetrating mode, a pair of second guide wheels (203) are symmetrically arranged at the bottom of the guide sleeve (202), a cable (103) is movably inserted into a gap between the pair of second guide wheels (203), a rubber cover (1045) is mounted on the regulator housing (104), and the top of the rubber cover (1045) is movably inserted into the cable (103).
  4. 4. The bridge construction girder and arch rib linear regulation and control equipment according to claim 3, wherein a first guide wheel (1046) is movably arranged in the regulator housing (104), grooves are formed in the outer walls of the first guide wheel (1046), the second guide wheel (203) and the third guide wheel (304), the size of the grooves is matched with that of the cable (103), the cable (103) is mutually attached to the side wall of the second guide wheel (203), and the tops of the cable (103) and the first guide wheel (1046) are mutually attached.
  5. 5. The bridge construction girder and arch rib linear regulation and control equipment according to claim 1, wherein a driving motor (305) is installed in the regulator housing (104), a worm (3051) is installed at the output end of the driving motor (305), the worm (3051) is transversely distributed, a central shaft of the worm (3051) is movably arranged on the inner wall of the regulator housing (104), a worm wheel (3052) is meshed with the top of the worm (3051), a rotating shaft is installed at the rotating center of the worm wheel (3052), and the tail end of the rotating shaft is fixedly connected with the central shaft of the turntable (301).
  6. 6. The bridge construction girder and arch rib linear regulation and control device according to claim 1, wherein a sliding seat (3021) is installed at the bottom of the sliding seat (302), a sliding rod (3032) is movably arranged in the sliding seat (3021) in a penetrating mode, mounting seats (303) are installed at two ends of the sliding rod (3032), tail ends of the mounting seats (303) are installed on a baffle inside a regulator housing (104), a return spring (3031) is installed on the outer wall of the sliding rod (3032), one side of the return spring (3031) is clamped on the mounting seat (303), the other side of the return spring (3031) is clamped on the sliding seat (3021), and a fixed block (4061) is installed on the side wall of the sliding seat (302).
  7. 7. The bridge construction girder and arch rib linear regulation and control equipment according to claim 1, wherein a baffle (4051) is slidably arranged in the sleeve (406), a positioning rod (405) is arranged in the center of the baffle (4051), a guide seat (4062) is movably inserted and arranged on the outer wall of the sleeve (406), the tail end of the guide seat (4062) is arranged on the regulator housing (104), an inserting rod (4041) is movably inserted and arranged in the vertical rod (404), a connecting arm (4042) is arranged on the side wall of the vertical rod (404), a pressing block (4043) is arranged at the bottom of the connecting arm (4042), and the pressing block (4043) slides on the regulator housing (104).
  8. 8. The bridge construction girder and arch rib linear regulation and control equipment according to claim 7, wherein a pair of fixing seats (401) are installed in the regulator housing (104), pull rings (1031) are arranged in the fixing seats (401) in a clamping mode, clamping grooves (4011) are formed in the surfaces of the fixing seats (401) located in the center, clamping plates (4031) are arranged in the clamping grooves (4011) in an inserting mode, positioning sleeves (402) are installed on the side walls of the fixing seats (401) located in the outer side, the baffles (4051) are slidably arranged in the positioning sleeves (402), compression springs (4033) are arranged in the baffles (4051) in a clamping mode, gaps (4021) are formed in the tops of the positioning sleeves (402), vertical rods (404) are arranged in the gaps (4021) in a sliding mode, and pressure sensors (4032) are installed on the inner walls of the pull rings (1031) and the clamping plates (4031).
  9. 9. The bridge construction girder and arch rib linear regulation and control equipment according to claim 1, wherein the safety protection component (500) is installed at the bottom of the regulator shell (104), the safety protection component (500) comprises a clamping sleeve (501), a mounting groove (1011) formed in the girder (101) in a movable inserting mode is formed in the clamping sleeve (501), a positioning protrusion (502) is movably inserted in the clamping sleeve (501), an unlocking spring (5022) is installed between the bottom of the positioning protrusion (502) and a transverse plate in the clamping sleeve (501), a push rod (5021) is installed at the bottom of the positioning protrusion (502), a clamping rod (5031) is movably inserted in the bottom of the clamping sleeve (501), a guide block (503) is installed at the tail end of the clamping rod (5031), the top of the guide block (503) is subjected to chamfering, the chamfer is formed in the chamfer position and the tail end of the push rod (5021), and a tension spring (5032) is installed on the guide block (5031).
  10. 10. A method for regulating and controlling the alignment of a girder and an arch rib for bridge construction, which is characterized in that the method is applied to the device for regulating and controlling the alignment of the girder and the arch rib for bridge construction according to any one of claims 1 to 9, and comprises the following steps: In the construction process, continuously detecting temperature and humidity monitoring data of a main beam (101) and an arch rib (102) in real time, sending the monitoring data to a computer unit, acquiring the monitoring data by a computer system for analysis and judgment, and calculating the influence of the current environmental effect on a structure; Acquiring the coordinates and the integral line shape of the construction key nodes of each stage of the main beam (101) and the arch rib (102) through a total station (1013), sending the results to a computer, and analyzing the deviation between the line shape of the current main beam and the arch rib and the preset line shape; Thirdly, analyzing the relation between the current linear deviation and the environmental effect by a computer, calculating the coordinate adjustment quantity of each monitoring point, and further calculating the stress and deformation adjustment quantity of each cable (103); And step four, the computer sends the stress and deformation adjustment quantity of the cable (103) to the angle adjusting unit (200) and the tension adjusting unit (300), so as to accurately adjust the cable force and the line shape of the cable (103).

Description

Linear regulating and controlling equipment and method for bridge construction girder and arch rib Technical Field The invention belongs to the technical field of intelligent bridge construction, and particularly relates to linear regulation and control equipment and method for a girder and a arch rib of bridge construction. Background In the arch bridge of cable-stayed bridge and cable-stayed mouth hanging construction, the cable is a crucial component, not only bears the key role in mechanics, but also directly influences the design, construction and long-term use performance and safety of the bridge. In cable-stayed bridges, the cable is one of the main load bearing members. The cable tower is connected with the main beam and anchored and supported by the cable tower, and the load born by the main beam is transferred to the cable tower and the foundation, so that the large-span crossing is realized. In the construction process of the arch bridge diagonal draw buckling, the cable plays a key temporary stress role, and the suspended butt joint of each arch rib section is assisted to form a stable structural system. At present, a weather station is designed on a main beam and used for monitoring weather parameters of a bridge area and surrounding environment in real time, such as temperature, humidity, precipitation and the like, the performance of the bridge under various weather conditions can be estimated and predicted through data analysis of the weather station, a total station is used for acquiring coordinates and integral line shapes of construction key nodes of the main beam or arch rib at each stage, and a force sensor is used for acquiring cable force of a cable. In general, cable assumption construction quality is critical for the entire cable-stayed bridge or arch bridge construction process, and can significantly affect girder and arch rib alignment. The cable adjusting process and means of the arch bridge for the conventional large-span cable-stayed bridge and cable-stayed buckling construction are original, and general construction monitoring staff regularly measure the data such as cable stress and line shape and feed back the data to designers for data analysis and instruction issuing, and then the constructors finish the instruction on site. Generally, the method has lower working efficiency, delays the construction progress and even affects the construction quality. Disclosure of Invention In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: The linear regulation and control equipment for the bridge construction girder and the arch rib comprises a girder, arch ribs, cables and a regulator shell, wherein the arch ribs are arranged on two sides of the girder, the regulator shell is arranged on the girder, the cables are arranged on the regulator shell and fixedly connected with the arch ribs, and an angle regulation and control unit, a tension regulation and control unit and a cable unlocking unit are arranged in the regulator shell; The angle regulating unit comprises a guide sleeve, a cable is inserted into the guide sleeve, a sliding sleeve is arranged on the side wall of the guide sleeve, a screw rod shaft is movably screwed in the sliding sleeve, one end of one side of the screw rod shaft is movably arranged on the inner wall of a regulator shell, and a regulating motor is arranged at the end of the other side of the screw rod shaft; the tension regulating unit comprises a turntable, a spiral guide rail is arranged on the turntable, a sliding block is arranged on the spiral guide rail in a sliding manner, a third guide wheel is movably arranged on the surface of the sliding block, a connecting plate is fixedly arranged on a central shaft of the third guide wheel, a limit rod is inserted into the connecting plate, and two ends of the limit rod penetrate through and are arranged on the side wall of a regulator shell; The cable unlocking unit comprises a fixed block, a sleeve is mounted on the side wall of the fixed block, a positioning rod is movably inserted into the sleeve, a vertical rod is mounted at the bottom of the positioning rod, a push plate is mounted at the tail end of the vertical rod, a clamping plate is arranged at the tail end of the push plate, a fixing seat is arranged on the outer wall of the clamping plate in a penetrating mode, a pull ring is movably arranged on the outer wall of the clamping plate in a penetrating mode, and the pull ring is fixedly connected with the cable. As a preferred implementation mode of the invention, the access door is movably arranged on the regulator housing, the access door is mutually communicated with the cavity in the regulator housing, the handle is arranged on the access door, the regulator housing is provided with the mounting plate, the mounting plate is provided with the mounting hole, the inside of the mounting hole is provided with the bolt, the bolt is screwed on the