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CN-224213132-U - Maintenance system and movable die carrier of cast-in-situ box girder

CN224213132UCN 224213132 UCN224213132 UCN 224213132UCN-224213132-U

Abstract

The utility model relates to the technical field of bridge construction, and provides a maintenance system of a cast-in-situ box girder and a movable formwork, wherein the maintenance system of the cast-in-situ box girder comprises a movable spraying device and a fixed spraying device, and the movable spraying device is used for spraying and maintaining the demolded box girder; the fixed spraying device comprises a water source, a first spraying pipeline and a plurality of rotary spray heads, one end of the first spraying pipeline is connected with the water source, the other end of the first spraying pipeline is connected with the rotary spray heads, and the rotary spray heads are used for carrying out swing type spraying on the upper surface of the demolding-free box girder from the side of the demolding-free box girder. According to the maintenance system for the cast-in-situ box girder, provided by the utility model, the plurality of rotary spray heads are arranged in the fixed spray device, and are enabled to swing-spray the upper surface of the non-demoulding box girder from the side of the non-demoulding box girder, so that maintenance blind areas can be effectively reduced, each corner of the surface of the non-demoulding box girder can be fully sprayed, and the problem of insufficient coagulation maintenance can be avoided.

Inventors

  • Gou Liqian
  • REN HONGWEI
  • LIU FUCANG
  • Lu Benchuan
  • LI XIANG
  • WANG LIANG
  • Xiang Yueling

Assignees

  • 中铁十九局集团华东工程有限公司

Dates

Publication Date
20260508
Application Date
20250415

Claims (10)

  1. 1. A curing system for cast-in-place box girders for spray curing the box girders, the box girders comprising demolded box girders (10) and non-demolded box girders (20), comprising: The movable spraying device (100) is used for spraying and maintaining the demoulded box girder (10); The fixed spraying device (200) comprises a water source (210), a first spraying pipeline (220) and a plurality of rotary spraying nozzles (230), wherein one end of the first spraying pipeline (220) is connected with the water source (210), the other end of the first spraying pipeline is connected with the rotary spraying nozzles (230), and the rotary spraying nozzles (230) are used for swinging spraying on the upper surface of the non-demolding box girder (20) from the side of the non-demolding box girder (20).
  2. 2. The maintenance system of cast-in-place box girders according to claim 1, characterized in that the first spray lines (220) are arranged in a rectangular configuration, the rotary spray heads (230) being arranged at intervals along the rectangular configuration, the shape of the rectangular configuration matching the shape of the non-demolded box girders (20).
  3. 3. The maintenance system of a cast-in-place box girder according to claim 2, further comprising a control system, wherein the water source (210) comprises a pressurized water source, and wherein the mobile spray device (100), the pressurized water source, and the rotary spray head (230) are electrically connected to the control system, respectively.
  4. 4. The maintenance system of cast-in-place box girders according to claim 1, characterized in that the mobile spraying device (100) comprises: a rail (110) provided on the upper surface of the demolded box girder (10); The water storage trolley (120) is slidably arranged on the track (110) and is suitable for reciprocating along the track (110); And the spraying component (130) is arranged on at least one side of the water storage trolley (120), and the shape of the spraying component (130) is matched with the outer contour of the demoulded box girder (10).
  5. 5. The maintenance system of cast-in-place box girders according to claim 4, wherein the spray component (130) comprises: The arm support (131) is arranged on at least one side of the water storage trolley (120), and the shape of the arm support (131) is matched with the outer contour of the demoulded box girder (10); The second spraying pipeline is arranged along the arm support (131) and is connected with the water storage trolley (120); The spray heads (133) are arranged at intervals along the arm support (131) and are connected with the second spraying pipeline.
  6. 6. The maintenance system of cast-in-place box girders according to claim 5, characterized in that two mobile spraying devices (100) are provided, two mobile spraying devices (100) being symmetrically arranged along the center line of the demolded box girders (10), wherein the spraying parts (130) of each group of mobile spraying devices (100) are provided only on one side of the water storage trolley (120) remote from the center line of the demolded box girders (10).
  7. 7. The maintenance system of a cast-in-place box girder according to claim 6, wherein the spray component (130) further comprises a top surface spray head (134), the top surface spray head (134) is arranged at the top end of the arm support (131) and is connected with the second spray pipeline, and the top surface spray head (134) is arranged towards the center line of the demolded box girder (10).
  8. 8. The maintenance system of a cast-in-place box girder according to claim 6, wherein the spray part (130) further comprises a counterweight (135), the counterweight (135) being suspended from a lower end of the boom (131).
  9. 9. The maintenance system of cast-in-place box girders according to claim 4, characterized in that the mobile spraying device (100) further comprises a water tank (140), the water tank (140) being located at the end of the track (110), the water tank (140) being used for assisting the automatic water filling of the water storage trolley (120).
  10. 10. A mobile mould frame, characterized by comprising a curing system for cast-in-place box girders according to any of the preceding claims 1 to 9.

Description

Maintenance system and movable die carrier of cast-in-situ box girder Technical Field The utility model relates to the technical field of bridge construction, in particular to a maintenance system and a movable formwork of a cast-in-situ box girder. Background The movable formwork is a construction machine which is provided with a formwork, and is used for pouring a bridge in situ by taking a bearing platform or pier as a support. The concrete curing plays an extremely important role in the quality of the cast-in-situ box girder of the bridge, the existing main mode generally adopts a mode that a vertical spray head is arranged on a movable mould frame at the top of the box girder for spraying curing, however, the spraying range of the vertical spray head is limited, the spraying quantity difference between a spraying center and an outer ring is large, so that the spraying curing is uneven, the movable mould frame is caused to tend to have the problem that the curing is not in place on the concrete of the cast-in-situ box girder, the quality of a box girder entity is easily influenced, and potential safety hazards exist. Disclosure of utility model The first aspect of the utility model provides a curing system for a cast-in-place box girder, which is used for solving the defect that curing is not in place in the prior art, and the curing blind area can be effectively reduced by arranging a plurality of rotary spray heads in a fixed spray device and enabling the rotary spray heads to swing-spray the upper surface of the un-demolded box girder from the side of the un-demolded box girder, so that each corner of the surface of the un-demolded box girder can be fully sprayed, and the problem that coagulation curing is not in place can be avoided. A second aspect of the present utility model provides a mobile scaffold. The utility model provides a curing system of a cast-in-situ box girder, which is used for spraying and curing the box girder, wherein the box girder comprises a demoulded box girder and a non-demoulded box girder, and the curing system of the cast-in-situ box girder comprises the following components: the movable spraying device is used for spraying and maintaining the demoulded box girder; The fixed spraying device comprises a water source, a first spraying pipeline and a plurality of rotary spray heads, one end of the first spraying pipeline is connected with the water source, the other end of the first spraying pipeline is connected with the rotary spray heads, and the rotary spray heads are used for swinging spraying on the upper surface of the demolding-free box girder from the side of the demolding-free box girder. According to the maintenance system for the cast-in-situ box girder, the first spraying pipelines are arranged in a rectangular structure, the rotary spray heads are arranged at intervals along the rectangular structure, and the shape of the rectangular structure is matched with that of the non-demoulding box girder. The maintenance system of the cast-in-situ box girder provided by the utility model further comprises a control system, wherein the water source comprises a pressurized water source, and the movable spraying device, the pressurized water source and the rotary spray head are respectively and electrically connected with the control system. According to the maintenance system of the cast-in-situ box girder provided by the utility model, the movable spraying device comprises: The rail is arranged on the upper surface of the demoulded box girder; the water storage trolley is arranged on the track in a sliding manner and is suitable for reciprocating along the track; The spraying component is arranged on at least one side of the water storage trolley, and the shape of the spraying component is matched with the outer contour of the demoulded box girder. According to the maintenance system of the cast-in-situ box girder provided by the utility model, the spraying component comprises: The arm support is arranged on at least one side of the water storage trolley, and the shape of the arm support is matched with the outer contour of the demoulded box girder; The second spraying pipeline is arranged along the arm support and is connected with the water storage trolley; And the spray heads are arranged at intervals along the arm support and are connected with the second spraying pipeline. According to the maintenance system for the cast-in-situ box girder, two movable spraying devices are arranged and are symmetrically arranged along the center line of the demoulded box girder, wherein the spraying parts of each group of movable spraying devices are only arranged on one side, far away from the center line of the demoulded box girder, of the water storage trolley. According to the maintenance system of the cast-in-situ box girder provided by the utility model, the spray component further comprises a top surface spray head, wherein the top surface spray head is arranged at the top e