CN111519661A - Vertical wall construction movable formwork capable of sliding laterally and construction method thereof - Google Patents

Abstract

The invention discloses a vertical wall construction movable formwork capable of sliding laterally, which comprises a screw rod inclined strut, a main beam, a secondary beam, a balance weight, a formwork hanging bracket, a fixed bracket, a pulley block, a bidirectional hydraulic jack, a variable frequency motor and a travelling wheel, wherein the screw rod inclined strut is arranged on the main beam; the main beam is connected with the secondary beam through a high-strength bolt; the fixed bracket is fixed on the secondary beam; the mould hanging bracket falls on the secondary beam through a pulley block; the mould hanging bracket is connected with the fixed bracket through a bidirectional hydraulic jack; the screw rod inclined strut is connected with the secondary beam through a pin shaft; under the action of the bidirectional hydraulic jack, the mold hanging bracket and the mold plate slide laterally on the secondary beam through the pulley block to perform profiling and demolding operations; the formwork support system is reasonable in structure, fast in field assembly and high in practicability, can realize integral formwork erecting, formwork removing and moving operation of a large-span formwork support system, and improves construction efficiency; the platform is assembled and erected for one-time forming, repeated disassembly and adjustment are not needed subsequently, personnel investment is greatly reduced, and the overhead working amount is effectively reduced.

Description

A laterally slidable vertical wall construction mobile formwork and construction method thereof

technical field

The invention belongs to the technical field of mobile formwork, and in particular relates to a laterally slidable vertical wall construction mobile formwork and a construction method thereof.

Background technique

In the construction of cast-in-place wall structures (such as tunnel open-cut construction and pipe gallery construction), small steel modules are often assembled for large-section construction, and brackets and tie rods are used as formwork support systems. The traditional support method vertical formwork construction requires repeated installation, dismantling, and reverse transport of the formwork and support frame, resulting in low construction efficiency, high-altitude operations, high safety risks, large investment in personnel and materials, and poor economic benefits.

Now some enterprises have begun to use mobile formwork. The mobile formwork system is mainly divided into load-bearing system, formwork installation and dismantling system, and walking system. The mobile formwork process replaces the traditional support method in the construction of the hydraulic system with automatic demoulding and overall walking function. The dismantling, reverse transportation and re-installation procedures greatly improve the construction efficiency and effectively reduce the amount of high-altitude work, but the lateral slip of the formwork is rarely introduced.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention discloses a sideways sliding vertical wall construction mobile formwork, which is suitable for the construction of the large-section and long-span vertical wall structures of the completed bottom plate. High efficiency, high degree of mechanization, reliable safety performance and good economic benefits.

For achieving the above object, technical scheme of the present invention is as follows:

A side-sliding vertical wall construction mobile formwork includes a formwork, a hanging formwork support, a two-way hydraulic jack, a fixed support, a traveling wheel, a secondary beam, a main beam, a pulley block and a frequency conversion motor; the formwork is fixed on on the hanging formwork support; the fixed support is fixed on the secondary beam; the lower part of the hanging formwork support falls on the secondary beam through a pulley group, the hanging formwork support is connected with the fixed support through a two-way hydraulic jack, and the secondary beam is on the main beam Above, the traveling wheels are arranged below the main beam, and the traveling wheels are connected to the frequency conversion motor.

Further, the outer side of the secondary beam is provided with a screw rod diagonal brace, and the end of the screw rod diagonal bracing is supported on the steel bars embedded in the bottom plate to resist the lateral pressure of the cast-in-place concrete.

Further, the outer side of the fixed bracket is provided with a counterweight, and by setting the counterweight, the overall overturning of the mobile formwork is prevented, and the overall stability of the structure is improved.

Further, the counterweight and the lead screw diagonal brace are arranged at one end away from the template.

Further, the main beam and the secondary beam are connected by high-strength bolts, and the shear resistance is strong.

Further, the template is vertically fixed on the hanging mold bracket through the hook and the nut.

Further, the variable frequency motor is placed on the secondary beam.

Further, the secondary beams are arranged at longitudinal intervals according to the force requirements, and have strong structural adaptability and stability.

Further, the fixing bracket is a triangular frame structure or a rectangular frame structure, and the hanging mold bracket is a rectangular frame structure.

Further, the components of the hanging mold bracket and the fixed bracket are vertical rods, inclined rods, horizontal rods and scissor braces, and the spacing is reasonably allocated to meet the requirements of structural stability.

Further, the lateral connection between the fixed bracket and the hanging mold bracket is provided with a steel pipe to enhance the integrity of the movable mold base.

Further, the fixing bracket is made of welded channel steel and square steel pipe, and has strong stability.

Further, the scissor brace is made of angle steel, and is arranged between the fixed bracket and the hanging mold bracket to enhance the stability of the frame body.

Further, 6 two-way hydraulic jacks are arranged between the hanging mold support and the fixed support, arranged in double rows, and the pulleys are arranged in a total of 9 groups with the same spacing as the secondary beam, and the hanging mold support is coordinated under the action of the two-way hydraulic jacks. The bottom pulley group drives the overall lateral sliding of the formwork, and performs the work of aligning and removing the formwork.

The construction method of this device is:

(1) Assembly

Determine the position of the main beam according to the design drawing, hoist the walking wheels and the main beam; hoist the secondary beam according to the opening position on the main beam, and pre-tighten high-strength bolts at the predetermined position; fix the fixed bracket on the secondary beam, and install the two-way side of the fixed bracket Hydraulic jack; after the hanging formwork bracket and pulley block are assembled, they are hoisted to the secondary beam and connected to the two-way hydraulic jack; the formwork is hoisted to the hanging formwork support; After hoisting in place, debug the equipment;

(2) Side shift

The mobile mold base is moved to the area to be poured by the frequency conversion motor and the walking wheel, the screw rod diagonal brace is tightened in place, the remote control two-way jack pushes the hanging mold bracket to the predetermined position, the two-way hydraulic jack is locked, and the pull rod is fixed through the formwork. Carry out the pouring operation, retract the lead screw diagonal brace and the two-way hydraulic jack during demoulding, and enter the next construction cycle after the overall demoulding.

The beneficial effects of the present invention are:

The laterally slidable vertical wall construction mobile formwork of the invention has reasonable structure, quick on-site assembly and strong practicability. The mobile formwork can not only satisfy the stability during pouring, but also realize the overall vertical formwork, formwork removal and moving operations of the large-span formwork support system, which improves the construction efficiency; Reduce personnel input and effectively reduce the amount of high-altitude operations.

Description of drawings

Figure 1 is a front view of a mobile formwork;

Figure 2. Side view of the mobile formwork.

List of reference numbers:

1: Template; 2: Hanging mold bracket; 3: Two-way hydraulic jack; 4: Fixed bracket; 5: Counterweight; 6: Screw diagonal brace; 7: Walking wheel; 8: Secondary beam; 9: Main beam; 10: Pulley block; 11: Frequency conversion motor.

Detailed ways

The present invention will be further clarified below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" ” refer to directions towards or away from the geometric center of a particular part, respectively.

As shown in the figure, a laterally slidable vertical wall construction mobile formwork according to the present invention includes 1: a formwork; 2: a hanging formwork bracket; 3: a two-way hydraulic jack; 4: a fixed bracket; 5 : Counterweight; 6: Lead screw diagonal brace; 7: Walking wheel; 8: Secondary beam; 9: Main beam; 10: Pulley block; 11: Frequency conversion motor. The template 1 is fixed on the hanging mold bracket 2 through the hook and the nut; the fixed bracket 4 is fixed on the secondary beam 8; the hanging mold bracket 2 and the fixed bracket 4 are connected by a two-way hydraulic jack 3; The secondary beam 8 is connected with the main beam 9 by high-strength bolts; the traveling wheel 7 is arranged under the main beam 9 ; the frequency conversion motor 11 is placed on the secondary beam 8 .

When assembling, determine the position of the main beam 9 according to the design drawing, hoist the traveling wheel 7 and the main beam 9; hoist the secondary beam 8 according to the opening position on the main beam, and pre-tighten high-strength bolts at the predetermined position; connect scissors between the fixed brackets 4 Support and install the two-way hydraulic jack 3; after the hanging formwork bracket 2 and the pulley block 10 are assembled, they are hoisted to the secondary beam 8 and connected to the two-way hydraulic jack 3; the formwork 1 is hoisted to the hanging formwork support 2; After the position is correct, screw the bolts finally; after the counterweight 5 is hoisted in place, debug the equipment.

When pouring concrete, the mobile formwork row is moved to the area to be poured through the frequency conversion motor 11 and the traveling wheel 7, the screw rod diagonal brace 6 is tightened in place, the remote two-way hydraulic jack 3 lifts the hanging formwork support 2 to the predetermined position, and the jack is locked. , the tie rod is fixed through the formwork 1, and the pouring operation can be carried out; when demoulding, the lead screw diagonal brace 6 and the two-way hydraulic jack 3 are retracted, and the whole demoulding enters the next construction cycle.

The technical means disclosed in the present invention are not limited to the technical means disclosed in the above-mentioned embodiments, but also include technical solutions composed of any improvement of the above-mentioned technical features.

Claims (10)

1. a side-sliding vertical wall construction mobile formwork is characterized in that: comprising formwork, hanging formwork support, two-way hydraulic jack, fixed support, lead screw diagonal brace, traveling wheel, secondary beam, main beam , a pulley block and a frequency conversion motor; the template is fixed on the hanging mold support; the fixed support is fixed on the secondary beam; the bottom of the hanging mold support falls on the secondary beam through the pulley block, and the hanging mold support is connected to the secondary beam through a two-way hydraulic jack. The fixed bracket is connected, and the lead screw diagonal brace is connected to the outside of the secondary beam through a pin shaft; the secondary beam is serially connected above the main beam through high-strength bolts, the walking wheels are arranged below the main beam, and the walking wheels are connected to the frequency conversion motor. 2. A laterally slidable vertical wall construction mobile formwork according to claim 1, characterized in that: the outer side of the secondary beam is provided with a screw rod diagonal bracing, and the end of the screw rod diagonal bracing It is placed on the steel bar embedded in the bottom plate, and the lead screw diagonal brace is arranged at one end away from the formwork. 3. A laterally slidable vertical wall construction mobile formwork according to claim 1, characterized in that: a counterweight is provided on the outer side of the fixed bracket, and the counterweight is arranged at one end away from the formwork . 4. A laterally slidable vertical wall construction mobile formwork according to claim 2 or 3, wherein the secondary beams are arranged at longitudinal intervals according to the force requirements. 5 . The laterally slidable vertical wall construction mobile formwork according to claim 1 , wherein the main beam and the secondary beam are connected by high-strength bolts. 6 . 6 . A laterally slidable vertical wall construction mobile formwork according to claim 1 , wherein the formwork is vertically fixed on the hanging formwork support by means of hooks and nuts. 7 . 7. A laterally slidable vertical wall construction mobile formwork according to claim 1, wherein the fixed support is a triangular frame structure or a rectangular frame structure, and the hanging formwork support is a rectangular frame structure . 8 . A laterally slidable vertical wall construction mobile formwork according to claim 1 , characterized in that: the fixed support and the hanging formwork support are laterally connected with steel pipes. 9 . 9. A laterally slidable vertical wall construction mobile formwork according to claim 1, characterized in that: 6 two-way hydraulic jacks are arranged between the hanging formwork support and the fixed support, arranged in double rows , the pulleys are arranged in 9 groups, and the spacing is the same as that of the secondary beam. 10. The construction method of a laterally slidable vertical wall construction mobile formwork according to claim 1, characterized in that: (1) Assembly Determine the position of the main beam according to the design drawing, and hoist the walking wheels and the main beam; hoist the secondary beam according to the opening position on the main beam, and pre-tighten high-strength bolts at the predetermined position; fix the fixed bracket on the secondary beam, and install the two-way side of the fixed bracket Hydraulic jack; after the hanging formwork bracket and pulley block are assembled, they are hoisted to the secondary beam and connected to the two-way hydraulic jack; the formwork is hoisted to the hanging formwork support; After hoisting in place, debug the equipment; (2) Side shift The mobile mold base is moved to the area to be poured by the frequency conversion motor and the walking wheel, the screw rod diagonal brace is tightened in place, the remote control two-way jack pushes the hanging mold bracket to the predetermined position, the two-way hydraulic jack is locked, and the pull rod is fixed through the formwork. Carry out the pouring operation, retract the lead screw diagonal brace and the two-way hydraulic jack during demoulding, and enter the next construction cycle after the overall demoulding.

Images