Device for longitudinal sliding of cast-in-place beam side mold and using method

Abstract

The invention relates to the technical field of cast-in-place beam construction, in particular to a device for longitudinal sliding of a cast-in-place beam side mold and a using method. Comprising side formworks on the two sides of a box girder, the side formworks on the two sides are both supported by side formwork inclined struts, the side formwork inclined struts are located on a construction cage frame, and walking units are arranged between the side formwork inclined struts and the construction cage frame and comprise rail base frames, angle steel rails, groove-shaped idler wheels and limiting check blocks. The rail base frame is arranged in the construction cage frame in the direction parallel to the length direction of the construction cage frame, the groove-shaped rolling wheels are located at the bottoms of the side formwork inclined struts and slidably connected with the angle steel rails, and limiting check blocks are arranged at the ends of the angle steel rails. The side formwork inclined struts on the two sides are connected with the output ends of the self-locking winches and move along the angle steel rails. According to the device, by changing the transfer mode of the outer side formwork of the bridge, large mechanical equipment is omitted for cooperative operation, the site construction pressure can be effectively relieved, the construction period progress is accelerated, and the construction occupied area is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cast-in-place beam construction, and in particular to a device for longitudinal sliding of a side form of a cast-in-place beam and a use method thereof. Background Art

[0002] During the construction of bridges, the side formwork of cast-in-place beams is often transferred by lifting with large mechanical equipment. The process is as follows: one set of cast-in-place beam formwork requires two cranes to disassemble and assemble the side formwork, one crane is used to disassemble the side formwork, and the other crane is used to transport the side formwork. After the preparation work is completed, the side formwork is assembled. The above methods occupy more resources, have a longer construction period, and are relatively more expensive. The operation frequency of large special equipment is higher, and the safety risks will increase. However, the space in locations with smaller land acquisition scopes is smaller, and the side formwork cannot be transferred by lifting with large mechanical equipment. Therefore, it is urgent to improve the transfer method of the side formwork of cast-in-place beams to improve work efficiency while saving equipment floor space. Summary of the invention

[0003] The problem to be solved by the present invention is to improve the transfer method of the side formwork of the cast-in-place beam so as to improve the work efficiency and save the equipment floor space at the same time.

[0004] In view of the deficiencies in the prior art, the present invention adopts the following technical solution to solve the technical problems: a device for longitudinal sliding of the side formwork of a cast-in-place beam, comprising side formworks on both sides of a box beam, wherein the side formworks on both sides are supported by side formwork diagonal braces, the side formwork diagonal braces are located on a construction cage, a walking unit is provided between the side formwork diagonal braces and the construction cage, the walking unit comprises a track base frame, an angle steel track, a grooved roller and a limit block, the angle steel track is located in the track base frame, the track base frame is arranged in the construction cage parallel to the length direction of the construction cage, the grooved roller is located at the bottom of the side formwork diagonal brace and is slidably connected to the angle steel track, and a limit block is provided at the end of the angle steel track; the side formwork diagonal braces on both sides are connected to the output end of a self-locking winch and move along the angle steel track.

[0005] Preferably, the self-locking winch is connected to the side formwork diagonal braces on both sides of the box beam through a steel wire rope, and a horizontal guide wheel is provided on the steel wire rope.

[0006] Preferably, a winch capstan is provided between the self-locking winch and the steel wire rope.

[0007] Preferably, the self-locking winch is fixed on the pier top by means of pier top embedded parts.

[0008] Preferably, two sets of parallel traveling units are provided under the side form diagonal braces on both sides of the box girder.

[0009] A method for using a device for longitudinal sliding of a cast-in-place beam side formwork comprises the following steps:

[0010] Step 1: Loosen the formwork of the completed beam body, so that the side forms on both sides are 10 cm away from the concrete, and then prepare to install the device for longitudinal sliding of the side forms;

[0011] Step 2: Install the track base frame on the construction cage, lay the angle steel track in the track base frame, install the grooved roller at the bottom of the side formwork diagonal brace and in the angle steel track; fix the self-locking winch on the pier top and install the winch capstan, horizontal guide wheel and wire rope, and connect the wire rope to the side formwork diagonal brace;

[0012] Step 3: When the side forms on both sides of the box beam are transferred to the next pouring station, the winch winch is rotated, and the winch winch is wound with a steel wire rope to pull the side form diagonal brace to move to the next pouring station. After the winch is in place, the self-locking winch stops running;

[0013] Step 4: Use the winch capstan to manually adjust the precise position of the side formwork braces on both sides. After the adjustment is completed, fix them and prepare to pour concrete.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The side form can slide freely on the cast-in-place beam, and the side form can be fine-tuned by manual or winch pulling;

[0016] 2. It can save the use of large crane equipment and avoid repeated disassembly, lifting and transportation;

[0017] 3. Avoid the safety risks caused by the upper and lower lifting of the bridge side formwork. By changing the transportation method of the outer side formwork of the bridge, large-scale mechanical equipment can be saved for cooperation, thereby reducing costs and safety risks. Especially in bridge construction with a tight schedule, this solution can effectively alleviate the construction pressure on site, speed up the construction progress, and reduce the construction area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the use of the device of the present invention;

[0019] Figure 2 is a top view of the device of the present invention;

[0020] Figure 3 The present invention Figure 2 The enlarged schematic diagram of part B in the middle;

[0021] Figure 4 The present invention Figure 1 The enlarged schematic diagram of part A in the middle;

[0022] Explanation of the reference numerals in the accompanying drawings: 1. Side form; 2. Side form diagonal brace; 3. Construction cage; 4. Travel unit; 41. Track base frame; 42. Angle steel track; 43. Grooved roller; 44. Limit block; 5. Self-locking winch; 51. Steel wire rope; 52. Pier top embedded parts; 53. Winch capstan; 54. Horizontal guide wheel; 6. Pier top. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0024] In order to solve the problems raised in the background technology, as shown in the figure, the present invention provides a device for longitudinal sliding of the side form of a cast-in-place beam, which is used to transfer the side forms 1 on both sides of the box beam, and the side forms 1 on both sides are supported by side form diagonal braces 2, and the side form diagonal braces 2 are located on the construction cage 3. A walking unit 4 is arranged between the side form diagonal braces 2 and the construction cage 3, and the walking unit 4 includes a track base frame 41, an angle steel track 42, a groove roller 43 and a limit stopper 44. The angle steel track 42 is located in the track base frame 41, and the track base frame 41 is arranged in the construction cage 3 in parallel with the length direction of the construction cage 3. The groove roller 43 is located at the bottom of the side form diagonal brace 2 and is slidably connected to the angle steel track 42. The angle steel track 42 is selected to cooperate with the groove roller 43, so that the walking track of the side form 1 can be fixed, and the side form 1 is more stable during the transfer process. A limit stopper 44 is arranged at the end of the angle steel track 42; the side form diagonal braces 2 on both sides are connected to the output end of the self-locking winch 5 and move along the angle steel track 42.

[0025] The self-locking winch 5 is connected to the side form diagonal braces 2 on both sides of the box beam through a steel wire rope 51, and a horizontal guide wheel 54 is provided on the steel wire rope 51. A winch capstan 53 is provided between the self-locking winch 5 and the steel wire rope 51. The self-locking winch 5 is fixed to the pier top 6 through the pier top embedded part 52, and the track base frame 41 is connected to the pier top embedded part 52 to form an integral unit structure, which improves the stability of the device for longitudinal sliding of the side form.

[0026] like Figure 2 As shown, two sets of parallel walking units 4 are provided under the side formwork braces 2 on both sides of the box beam, and each set of walking units 4 on both sides is arranged in mirror symmetry, which is used to support the movement of the side formwork braces 2 more stably. A method for using a device for longitudinal sliding of the side formwork of a cast-in-place beam comprises the following steps:

[0027] Step 1: loosen the mold of the completed cast beam body, so that the side molds 1 on both sides are separated from the concrete by 10 cm, and then prepare to install the device for longitudinal sliding of the side molds;

[0028] Step 2: Install the track base frame 41 on the construction cage 3, lay the angle steel track 42 in the track base frame 41, and install the grooved roller 43 at the bottom of the side formwork diagonal brace 2 and in the angle steel track 42; fix the self-locking winch 5 on the pier top 6 and install the winch capstan 53, the horizontal guide wheel 54 and the wire rope 51, and the wire rope 51 is connected to the side formwork diagonal brace 2;

[0029] Step 3: When the side forms 1 on both sides of the box beam are transferred to the next pouring station, the winch winch 53 is rotated, and the winch winch 53 is wound around the wire rope 51 to pull the side form diagonal brace 2 to move to the next pouring station. After the side formwork 1 is moved to the next pouring station, the self-locking winch 5 stops running;

[0030] Step 4: Use the winch capstan 53 to manually adjust the precise positions of the side formwork diagonal braces 2 on both sides. After the adjustment is completed, fix them and prepare to pour concrete.

[0031] The present invention transfers the side formwork by pulling the side formwork braces 2 on both sides forward with a self-locking winch 5. Grooved wheels are installed at the bottom of the side formwork braces 2 for easy sliding. The grooved wheels slide along the track. The track is set on the construction cage 3 through the track base frame 41. The walking unit cooperates with the winch to form a system that can slide on the construction cage 3. After being put into use, the turnover rate of the side formwork is greatly improved, the cost is greatly reduced, the investment in manpower and mechanical equipment is reduced, the number of large special equipment used is reduced, thereby reducing the occurrence of safety management risk accidents, and is suitable for scenes with smaller construction areas.

Claims

1. A device for longitudinal sliding of the side form of a cast-in-place beam, characterized in that: The invention comprises side forms (1) on both sides of a box beam, the side forms (1) on both sides are supported by side form diagonal braces (2), the side form diagonal braces (2) are located on a construction cage (3), a walking unit (4) is arranged between the side form diagonal braces (2) and the construction cage (3), the walking unit (4) comprises a track base frame (41), an angle steel track (42), a grooved roller (43) and a limit stopper (44), the angle steel track (42) is located in the track base frame (41), the track base frame (41) is arranged in the construction cage (3) parallel to the length direction of the construction cage (3), the grooved roller (43) is located at the bottom of the side form diagonal brace (2) and is slidably connected to the angle steel track (42), and a limit stopper (44) is arranged at the end of the angle steel track (42); the side form diagonal braces (2) on both sides are connected to the output end of a self-locking winch (5) and move along the angle steel track (42).

2. The device for longitudinal sliding of the side form of a cast-in-place beam according to claim 1, characterized in that: The self-locking winch (5) is connected to the side mold diagonal braces (2) on both sides of the box beam through a steel wire rope (51), and a horizontal guide wheel (54) is arranged on the steel wire rope (51).

3. The device for longitudinal sliding of the side form of a cast-in-place beam according to claim 2, characterized in that: A hoist winch (53) is provided between the self-locking hoist (5) and the steel wire rope (51).

4. The device for longitudinal sliding of the side form of a cast-in-place beam according to claim 3, characterized in that: The self-locking winch (5) is fixed on the pier top (6) via the pier top embedded part (52).

5. The device for longitudinal sliding of the side form of a cast-in-place beam according to claim 1, characterized in that: Two groups of parallel-arranged walking units (4) are provided under the side formwork diagonal braces (2) on both sides of the box beam.

6. A method for using a device for longitudinal sliding of a cast-in-place beam side form, characterized in that: The following steps are included: Step 1: loosen the formwork of the completed cast beam body so that the side forms (1) on both sides are separated from the concrete by 10 cm, and then prepare to install the device for longitudinal sliding of the side forms; Step 2: Install the track base frame (41) on the construction cage (3), lay the angle steel track (42) in the track base frame (41), and install the grooved roller (43) at the bottom of the side formwork diagonal brace (2) and in the angle steel track (42); fix the self-locking winch (5) on the pier top (6) and install the winch capstan (53), horizontal guide wheel (54) and wire rope (51), and the wire rope (51) is connected to the side formwork diagonal brace (2); Step 3: When the side forms (1) on both sides of the box beam are transferred to the next pouring station, the winch winch (53) is rotated, and the winch winch (53) is wound around the steel wire rope (51) to pull the side form diagonal brace (2) to move to the next pouring station. After the side forms (1) are moved to the next pouring station, the self-locking winch (5) stops running; Step 4: Use the winch capstan (53) to manually adjust the precise positions of the side formwork braces (2) on both sides, fix them after the adjustment is completed, and prepare to pour concrete.

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