CN108726358A - A kind of towering concrete structure main reinforcement batch hanging apparatus and method - Google Patents

Abstract

The invention discloses a batch hoisting device and method for the main bars of a towering concrete structure, wherein the batch hoisting device for the main bars of a towering concrete structure includes a main frame, a hanger and a steel bar positioning frame, and a hanging platform is provided in the middle of the main frame, and a hanging There are two table boards, which are set opposite to each other on the inner edge. There are hanging table lugs on the hanging table, which are hinged with the main frame. The hanger includes booms. Drive the rotation of the two hanging table boards, so that the inner edges of the two hanging table boards are close to each other or far away from each other. The steel bar positioning frame is located at the position where the steel bar is to be installed, and it includes a limit plate. A positioning slot is formed between the positioning plate and the positioning frame. The present invention realizes the clamping and loosening of the steel bar group through the self-weight of the main frame and the hanging platform, which solves the problems of difficult positioning and low efficiency in the hoisting process of the steel bar. advantage of consumption.

Description

Batch hoisting device and method for main reinforcement of towering concrete structure

technical field

The invention relates to the field of bridge construction, in particular to a batch hoisting device and method for the main bars of a towering concrete structure.

Background technique

With the vigorous development of bridge construction, the spanning capacity of bridges is getting bigger and bigger, and the bearing capacity is getting bigger and bigger. High-rise concrete structures such as bridge towers are more and more widely used in bridge engineering; and the main reinforcement of high-altitude concrete construction generally adopts large-diameter straight thread sleeves. With the increase of construction height and the maturity of high-altitude climbing formwork construction technology and on-site control technology, large-diameter steel bars with lengths of 6m and 9m are becoming more and more common.

The installation methods of large-diameter and super-long steel bars mainly include: first, use hoisting equipment to hoist them in bundles on the construction platform, and then install them one by one by two or even three people, and manually install them on the construction platform one by one. The other is to assemble the whole section of concrete steel bars of the column on the ground into a whole, and then install it as a whole by a large crane such as a truck crane or a crawler. The heavy load is generally about 10 tons, which cannot meet the overall hoisting of the steel bars in the standard section of the column with hundreds of tons.

In order to improve the hoisting efficiency of steel bars and give full play to the advantages of tower cranes, a batch hoisting method of large-diameter steel bars for high-rise concrete structures is specially researched and invented. The process is simple, the construction is fast, and safe. One of the feasible construction methods.

The invention aims to solve the technical problem of improving the installation efficiency of large-diameter steel bars in towering concrete structures, and provides a construction method.

Contents of the invention

The technical problem to be solved by the present invention is aimed at the problem of hoisting efficiency of steel bars in towering concrete structures.

In order to solve the above technical problems, the technical solution adopted by the present invention is to provide a batch hoisting device for the main reinforcement of a towering concrete structure, including:

The main frame is provided with a hanging platform in the middle, and the hanging platform is set to two, and is arranged opposite to the inner edge. Main frame hinge;

The spreader includes booms, and the booms are arranged in two groups, which are respectively used to drive the rotation of the two hanging platforms, so that the inner edges of the two hanging platforms are close to each other or far away from each other;

The reinforcing bar positioning frame is located at the position to be installed of the reinforcing bar, and it includes a limiting plate. The front and rear sides of the limiting plate are respectively provided with a positioning plate and a positioning frame, and a positioning groove is formed between the positioning plates.

In the above solution, the main frame is a rectangular frame with a hollow center, the hanging table lugs are arranged on the outer edge of the hanging table, and a gap is formed between the hanging table and the main frame.

In the above scheme, the boom drives the hanging platform to rotate through a bracket, the bracket is hinged to the lower end of the boom, the main frame is provided with a bracket seat, and one end of the bracket Hinged with the bracket seat, the other end of the bracket is provided with a support for receiving the hanging platform.

In the above solution, a groove is provided in the middle of the bracket, and the lower end of the boom is located in the groove.

In the above solution, the bracket seat is provided with a bracket stop rail, and the bracket is provided with a support stop rail adapted to the bracket stop rail.

In the above solution, the inner edge of the hanging platform is provided with a notch for clamping steel bars.

In the above solution, the hanger further includes a hanging beam, the hanging beam is hinged to the upper end of the boom, and the middle part of the hanging beam is provided with lifting lugs.

In the above solution, the left and right sides of the limiting plate are respectively provided with support bases, and guide plates are obliquely provided on the support bases.

In the above solution, the positioning plate is curved upwards, and the top surface of the positioning frame is higher than the upper surface of the limiting plate.

The present invention also provides a batch hoisting method for the main bars of a towering concrete structure, which includes the following steps:

S1. Lift the main frame with the sling so that the main frame is located above the steel bar bracket where the steel bar group is placed, lower the main frame, and complete the horizontal positioning of the main frame through the guide device on the steel bar bracket;

S2. In the process of lowering the main frame, make the steel bar group on the steel bar support push away the two hanging platforms; closed under its own weight;

S3. Slowly lift the main frame, so that the two hanging boards clamp the steel bar group;

S4. Move the steel bar group to the top of the steel bar positioning frame, slowly lower the main frame so that each steel bar of the steel bar group passes through the positioning groove on the positioning plate, and continue to lower the main frame so that the bracket drives the two hanging platforms to open , so that the hanging platform gives up the support, and the steel bar group is replaced on the steel bar positioning frame;

S5. Lifting the main frame so that the main frame is separated from the reinforcement group.

Compared with the prior art, the present invention realizes the clamping and loosening of the reinforcement group through the self-weight of the main frame and the hanging platform, so that the large-diameter steel bars with sleeves can be automatically grooved and de-grooved, which can effectively speed up the large-scale The hoisting speed of super-long steel bars reduces the hoisting process of large-diameter steel bars, and solves the problems of difficult positioning and low efficiency in the hoisting process of steel bars. The invention has a simple hoisting method, flexible and effective use, and has the advantages of energy saving and consumption reduction.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of main framework among the present invention;

Fig. 3 is a schematic structural view of the hanging platform in the present invention;

Fig. 4 is the schematic diagram that boom is connected with bracket among the present invention;

Fig. 5 is the structural representation of bracket among the present invention;

Fig. 6 is the structural representation of hanger among the present invention;

Fig. 7 is the structural representation of reinforcing bar positioning frame among the present invention;

Fig. 8 is the schematic diagram of hoisting reinforcing bar group of the present invention;

Fig. 9 is a schematic diagram of placing the reinforcing bar group on the reinforcing bar positioning frame according to the present invention.

Detailed ways

The invention aims at the problems existing in the current hoisting system, and solves the defects that it needs to be repeatedly disassembled and assembled during use, the construction is cumbersome, the efficiency is low, and the large-length steel bars cannot be hoisted in batches and quickly. The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 7 , the present invention provides a batch hoisting device for main bars of a towering concrete structure, which includes a main frame 1 , a hanger 4 and a steel bar positioning frame 5 . The middle part of the main frame 1 is provided with a hanging platform 2 . The present invention drives the main frame 1 and the hanging platform 2 to hoist the steel bar group through the hanger 4, and places the steel bar group at a designated position through the steel bar positioning frame 5, so that efficient and fast hoisting of the steel bar group can be realized.

The main frame 1 includes a main frame body 1-1. The main frame body 1-1 is a rectangular frame including a frame. Risers are vertically arranged on the inside of the frame, and reinforcing ribs 1-5 are arranged between the risers and the frame.

The hanging table board 2 is set to two, and is arranged relatively with the inner edge, the hanging table board 2 comprises the hanging table board main body 2-1, and the hanging table board main body 2-1 is rectangular, and the hanging table board main body 2-1 is provided with a hanging table board main body 2-1. The table ear plate 2-2, the hanging table ear plate 2-2 is arranged on the outer edge of the hanging table main body 2-1. The main frame 1 is provided with an ear plate 1-2, the hanging platform ear plate 2-2 is hinged with the ear plate 1-2, and the inner edge of the hanging platform main body 2-1 is provided with a notch 2-3 for clamping steel bars. The two hanging platform main bodies 2-1 change the facing distance of the notches 2-3 on the two hanging platform main bodies 2-1 by rotating around the hinge point, thereby realizing the clamping and loosening of the reinforcing bars.

The spreader 4 includes a boom 4-1, and the boom 4-1 is arranged in two groups, which are respectively used to drive the two hanging platform boards 2 to rotate, so that the inner edges of the two hanging platform boards 2 are close to or far away from each other, thereby Realize the clamping and loosening of steel bars. The main frame 1 is a hollow rectangular frame in the middle, and a gap is formed between the hanger lug 2-2 and the main frame 1, and the gap is used to pass the boom 4-1 so that the boom 4-1 can move freely. The boom 4-1 drives the main body 2-1 of the hanging platform to rotate through the bracket 3, the bracket 3 is hinged with the lower end of the boom 4-1, the main frame 1 is provided with a bracket seat 1-3, and one end of the bracket 3 It is hinged with the bracket seat 1-3, and the other end of the bracket 3 is provided with a support 3-1 for receiving the main body 2-1 of the hanging platform. One end and the middle part on the preferred bracket 3 are respectively provided with a first pin hole 3-4 and a second pin hole 3-5, and the first pin hole 3-4 and the second pin hole 3-5 cooperate with the pin and the bracket respectively. The lower ends of the mount 1-3 and the boom 4-1 are hinged. The middle part of the bracket 3 is provided with an upwardly facing groove 3-3, and the lower end of the boom 4-1 is located in the groove 3-3. Preferably, the bracket seat 1-3 is provided with a bracket stop rail 1-4, and the bracket 3 is provided with a support stop rail 3-2 adapted to the bracket stop rail 1-4, which acts as a limiter. function, preventing the bracket 3 from over-rotating and causing unnecessary bumps.

The spreader 4 also includes a suspension beam 4-2, the suspension beam 4-2 is hinged with the upper end of the suspension arm 4-1, and the middle part of the suspension beam 4-2 is provided with a suspension lug 4-3. Preferably, the suspension beam 4-2 is strip-shaped, and the number of suspension arms 4-1 is set to four, which are respectively arranged on the four corner edges of the suspension beam 4-2, and are hinged to the suspension beam 4-2 through pins.

The steel bar positioning frame 5 is located at the position to be installed of the steel bar, and is used to cooperate with the main frame 1, the hanging plate 2, the bracket 3 and the spreader 4 to realize automatic unloading of the steel bar, and place the steel bar at a designated position. The steel bar positioning frame 5 includes a limit The front and rear sides of the limiting plate are respectively provided with a positioning plate 5-4 and a positioning frame 5-1, and a positioning groove 5-5 is formed between the positioning plates 5-4, and the positioning groove 5-5 is used for positioning a single steel bar .

The left and right sides of the limiting plate are respectively provided with a support seat 5-3, and the support seat 5-3 is inclined to be provided with a guide plate 5-2, and the guide plate 5-2 is used for lowering and guiding of the main frame 1 to realize quick arrival. The positioning plate 5-4 is curved upwards, and the top surface of the positioning frame 5-1 is higher than the upper surface of the limiting plate. After the main frame 1 is placed on the steel bar positioning frame 5, it can support the bracket 3, so that the hanging platform 2 is folded downward under the gravity of the bracket 3, the hanger 4 and the steel bar group, so that the hanging platform 2 is opened. Release the rebar group.

Working principle of the present invention is:

Reinforcement group lifting: When the crane lifts the main frame 1 and is located directly above the steel support, slowly lower the main frame 1, and at the same time, through the positioning of the guide device on the reinforcement support, the reinforcement group pushes the hanging platform 2 back and After the main frame 1 is lowered to a certain position, the sleeve on the top of the steel bar passes through the hanging platform 2, and the hanging platform 2 returns to its original position under the action of its own weight. At this time, the steel bar has been placed on the hanging platform 2 Lock the notch 2-3 of the hanger, lift the main frame 1 of the hanger, and lift the steel bar group away from the steel bar support;

Reinforcement group fall: Place the reinforcement group above the reinforcement positioning frame 5 through the spreader 4, slowly lower the main frame 1, and under the action of the guide plate 5-2 and the positioning frame 5-1, embed each reinforcement in the reinforcement group In the positioning groove 5-5, when the main frame 1 is lowered on the support seat 5-3, the main frame 1 is continuously lowered through the spreader 4 until it cannot be lowered. At this time, the bracket 3 is supported by the positioning plate 5-4 and the positioning frame. The support of 5-1 makes the hanging platform 2 suspended in the air. Under the action of the steel bar and the gravity of the hanging platform 2, the hanging platform 2 is folded downward, so that the hanging platform 2 is opened, the steel bar is released, and the main frame 1 is lifted upwards. The whole reinforcement group can be replaced on the positioning plate 5-4, and the main frame 1 is separated from the reinforcement group, so as to prepare for the next lifting.

As shown in Figures 8 to 9, the present invention also provides a batch hoisting method for the main bars of towering concrete structures, which is used to realize batch hoisting of steel bars, including the following steps:

S1. Lift the main frame with the sling so that the main frame is located above the steel bar bracket where the steel bar group is placed, lower the main frame, and complete the horizontal positioning of the main frame through the guide device on the steel bar bracket;

S2. In the process of lowering the main frame, make the steel bar group on the steel bar support push away the two hanging platforms; closed under its own weight;

S3. Slowly lift the main frame, so that the two hanging boards clamp the steel bar group;

S4. Move the steel bar group to the top of the steel bar positioning frame, slowly lower the main frame so that each steel bar of the steel bar group passes through the positioning groove on the positioning plate, and continue to lower the main frame so that the bracket drives the two hanging platforms to open , so that the hanging platform gives up the support, and the steel bar group is replaced on the steel bar positioning frame;

S5. Lifting the main frame so that the main frame is separated from the reinforcement group.

Compared with the prior art, the present invention realizes the clamping and loosening of the reinforcement group through the self-weight of the main frame and the hanging platform, so that the large-diameter steel bars with sleeves can be automatically grooved and de-grooved, which can effectively speed up the large-scale The hoisting speed of super-long steel bars reduces the hoisting process of large-diameter steel bars, and solves the problems of difficult positioning and low efficiency in the hoisting process of steel bars. The invention has a simple hoisting method, flexible and effective use, and has the advantages of energy saving and consumption reduction.

The present invention is not limited to the above-mentioned best implementation mode, and anyone should know that the structural changes made under the inspiration of the present invention, all technical solutions that are identical or similar to the present invention, all fall within the scope of protection of the present invention Inside.

Claims (10)

1. a kind of towering concrete structure main reinforcement batch hanging apparatus, which is characterized in that including：

Main truss, middle part are equipped with hanging platform plate, and the hanging platform plate is set as two, and is oppositely arranged with inside edge, the extension Platen is equipped with hanging platform otic placode, and the hanging platform otic placode is hinged with the main truss；

Suspender, including arm, the arm are set as two groups, are respectively used for driving two hanging platform plate rotations, make two institutes The inside edge for stating hanging platform plate is close to each other or be located remotely from each other；

Steel bar positioning frame is located at the position to be installed of reinforcing bar comprising the front and rear sides of limiting plate, the limiting plate are respectively equipped with Positioning plate and locating rack form locating slot between the positioning plate.

2. a kind of towering concrete structure main reinforcement batch hanging apparatus according to claim 1, which is characterized in that the master Framework is the hollow rectangular frame in middle part, and the hanging platform otic placode is arranged the outer ledge in the hanging platform plate, the hanging platform plate with Gap is formed between the main truss.

3. a kind of towering concrete structure main reinforcement batch hanging apparatus according to claim 1, which is characterized in that described to hang Arm drives the hanging platform plate to rotate by bracket, and the lower end of the bracket and the arm is hinged, and the main truss is equipped with support Stand, one end of the bracket is hinged with the bearer carrier, and the other end of the bracket is equipped with for accepting the hanging platform plate Support.

4. a kind of towering concrete structure main reinforcement batch hanging apparatus according to claim 3, which is characterized in that the support The middle part of frame is equipped with groove, and the lower end of the arm is located in the groove.

5. a kind of towering concrete structure main reinforcement batch hanging apparatus according to claim 3, which is characterized in that the support Stand stops rail equipped with bracket, and the bracket, which is equipped with, to be stopped the support that rail is adapted to the bracket and stop rail.

6. a kind of towering concrete structure main reinforcement batch hanging apparatus according to claim 1, which is characterized in that the extension The inside edge of platen is equipped with the recess for clamping reinforcing bar.

7. a kind of towering concrete structure main reinforcement batch hanging apparatus according to claim 1, which is characterized in that described to hang Tool further includes hanging beam, and the upper end of the hanging beam and the arm is hinged, and the middle part of the hanging beam is equipped with lifting lug.

8. a kind of towering concrete structure main reinforcement batch hanging apparatus according to claim 1, which is characterized in that the limit Position plate is respectively arranged on the left side and the right side support base, and guide plate is provided tiltedly on the support base.

9. a kind of towering concrete structure main reinforcement batch hanging apparatus according to claim 1, which is characterized in that described fixed Position plate is curved in being folded upward at, and the top surface of the locating rack is higher than the upper surface of the limiting plate.

10. a kind of towering concrete structure main reinforcement batch hanging method, which is characterized in that include the following steps：

S1, main truss is lifted by crane by suspender, main truss is made to be located above the Steel bar rack for placing reinforcing bar group, transfer main truss, led to The guider crossed on Steel bar rack completes the horizontal location of main truss；

In S2, the journey let off under main truss, keep the reinforcing bar group on Steel bar rack that two hanging platform plates are open-top；And across two extensions Gap between platen continues to transfer, and two hanging platform plates is made to be closed under the action of self-weight；

S3, slow raising main truss make the tight reinforcing bar group of two hanging platform boards；

S4, the top that reinforcing bar group is moved to steel bar positioning frame, slowly transfer main truss, and every reinforcing bar of reinforcing bar group is made to be each passed through Locating slot on positioning plate continues to transfer main truss, makes bracket that two hanging platform plates be driven to open, hanging platform plate is made to abandon supporting, will Reinforcing bar group is replaced to steel bar positioning frame；

S5, main truss is promoted, main truss is made to be detached from reinforcing bar group.