CN108726358B - A batch hoisting device and method for main bars of a towering concrete structure - Google Patents

Abstract

The invention discloses a batch hoisting device and method for main bars of a high-rise concrete structure, wherein the batch hoisting device for the main bars of the high-rise concrete structure comprises a main framework, a lifting appliance and bar positioning frames, wherein the middle part of the main framework is provided with two hanging tables, the inner side edges of the two hanging tables are oppositely arranged, the hanging tables are provided with hanging table ear plates, the hanging table ear plates are hinged with the main framework, the lifting appliance comprises two groups of hanging arms, the two hanging arms are respectively used for driving the two hanging tables to rotate, so that the inner side edges of the two hanging tables are close to or far away from each other, the bar positioning frames are positioned at positions to be installed of bars and comprise limiting plates, the front side and the rear side of each limiting plate are respectively provided with a positioning plate and a positioning frame, and positioning grooves are formed between. According to the invention, the clamping and loosening of the steel bar group are realized through the self-weight of the main framework and the hanging table plate, the problems of difficult positioning and low efficiency in the steel bar hoisting process are solved, the hoisting method is simple, the use is flexible and effective, and the advantages of energy conservation and consumption reduction are also realized.

Description

A batch hoisting device and method for main bars of a towering concrete structure

technical field

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

Background technique

With the vigorous development of bridge construction, the spanning capacity and bearing capacity of bridges are getting larger and larger, and towering concrete structures such as bridge towers are more and more widely used in bridge engineering; while the main bars of high-altitude concrete construction generally use 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 main methods for installing large-diameter and super-long steel bars are as follows: First, use lifting equipment to hoist them to the construction platform in bundles, and then install them one by one by two people or even three people, and manually install them on the construction platform one by one. Labor force; another is to assemble the whole section of concrete and steel bars 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. This construction method is only suitable for the construction of piers with lower heights, and the high-altitude operation tower lift The heavy load is generally about 10 tons, which cannot meet the overall hoisting of the standard section steel bars of the column that can easily exceed hundreds of tons.

In order to improve the hoisting efficiency of steel bars and give full play to the advantages of tower cranes, a method for hoisting large-diameter steel bars in towering concrete structures in batches is specially researched and invented. 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 tall concrete structures, and provides a construction method.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is aimed at the problem of the hoisting effect of the steel bar of the towering concrete structure.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is to provide a bulk hoisting device for the main bars of a towering concrete structure, including:

The main frame is provided with a hanging plate in the middle, the two hanging plates are arranged in two, and the inner edges are opposite to each other. The hanging plate is provided with a hanging lug, and the hanging lug The main frame is hinged;

The hanger includes a hanger arm, and the hanger arm is arranged in two groups, which are respectively used to drive the two hanging platens to rotate, so that the inner edges of the two hanging platens are close to each other or away from each other;

The steel bar positioning frame is located at the position where the steel bar is to be installed, and includes a limit plate. The front and rear sides of the limit 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 central part, the table-hanging lugs are arranged on the outer edge of the table-hanging plate, and a gap is formed between the table-hanging plate and the main frame.

In the above solution, the suspension arm drives the hanging plate to rotate through a bracket, the bracket is hinged with the lower end of the suspension arm, the main frame is provided with a bracket seat, and one end of the bracket is The bracket is hinged with the bracket base, and the other end of the bracket is provided with a support for receiving the hanging plate.

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 base 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 plate is provided with a notch for clamping the steel bar.

In the above solution, the hoisting tool further includes a hoisting beam, the hoisting beam is hinged with the upper end of the hoisting arm, and the middle part of the hoisting beam is provided with a hoisting lug.

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

In the above solution, the positioning plate is in a curved shape that is bent upward, 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 main bars of a towering concrete structure, comprising the following steps:

S1. The main frame is lifted by the sling, so that the main frame is located above the steel support bracket on which the steel bar group is placed, the main frame is lowered, and the horizontal positioning of the main frame is completed through the guide device on the steel support bracket;

S2. In the process of lowering the main frame, make the steel bar group on the steel support bracket push the two hanging plates; and pass through the gap between the two hanging plates, and continue to lower, so that the two hanging plates are in the closed under the action of its own weight;

S3. Slowly lift the main frame to make the two hanging plates clamp the steel bar group;

S4. Move the steel bar group to the top of the steel bar positioning frame, and slowly lower the main frame, so that each steel bar of the steel bar group passes through the positioning grooves on the positioning plate respectively, and continue to lower the main frame, so that the bracket drives the two hanging platens to open , to make the hanging platform give up the support, and replace the steel bar group to the steel bar spacer;

S5. Lift the main frame so that the main frame is separated from the steel bar group.

Compared with the prior art, the present invention, through the self-weight of the main frame and the hanging plate, realizes the clamping and loosening of the steel bar group, so that the large-diameter steel bars with sleeves can be automatically slotted into and out of the slot, which can effectively speed up the large-diameter steel bar with sleeves. The hoisting speed of the super-long diameter steel bar reduces the hoisting process of the large-diameter steel bar, and solves the problems of difficult positioning and low efficiency during the hoisting process of the steel bar.

Description of drawings

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

Fig. 2 is the structural representation of main frame in the present invention;

Fig. 3 is the structural representation of hanging platen in the present invention;

4 is a schematic diagram of the connection between the boom and the bracket in the present invention;

5 is a schematic structural diagram of a bracket in the present invention;

6 is a schematic structural diagram of a spreader in the present invention;

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

Fig. 8 is the schematic diagram of the hoisting steel 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 present invention aims at the problems existing in the current hoisting system, and solves the defects of repeated disassembly and assembly in use, complicated construction, low efficacy, and inability to achieve batch and rapid hoisting of large-length steel bars. The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments of the description.

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

The main frame 1 includes a main frame body 1-1, which is a rectangular frame and includes a frame. The inner side of the frame is vertically provided with a vertical plate, and a reinforcing rib 1-5 is arranged between the vertical plate and the frame.

There are two hanging platens 2, and the inner edges are opposite to each other. The hanging plate 2 includes a main body 2-1 of the hanging plate. The main body 2-1 of the hanging plate is rectangular, and the main body 2-1 of the hanging plate is provided with a hanging plate. The table lug plate 2-2 and the table hanging lug plate 2-2 are arranged on the outer edge of the table hanging plate main body 2-1. The main frame 1 is provided with an ear plate 1-2, the hanging table ear plate 2-2 is hinged with the ear plate 1-2, and the inner edge of the hanging table main body 2-1 is provided with a notch 2-3 for clamping steel bars. The two hanging plate bodies 2-1 are rotated around the hinge point to change the facing distance of the notches 2-3 on the two hanging plate bodies 2-1, thereby realizing the clamping and loosening of the steel bars.

The hanger 4 includes a hanger arm 4-1, and the hanger arm 4-1 is arranged in two groups, which are respectively used to drive the two hanging platens 2 to rotate, so that the inner edges of the two hanging platens 2 are close to each other or away from each other, thereby Realize the clamping and loosening of steel bars. The main frame 1 is a rectangular frame with a hollow center, and a gap is formed between the hanging table lugs 2-2 and the main frame 1, and the gap is used to pass through the boom 4-1, so that the boom 4-1 can move freely. The hanging arm 4-1 drives the main body 2-1 to rotate through the bracket 3, the bracket 3 is hinged with the lower end of the hanging arm 4-1, the main frame 1 is provided with a bracket seat 1-3, and one end of the bracket 3 Hinged with the bracket base 1-3, the other end of the bracket 3 is provided with a support 3-1 for receiving the main body 2-1 of the hanging platen. Preferably, one end and the middle of the 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 are respectively matched with the pin post and the bracket The frame base 1-3 and the lower end of the boom 4-1 are hinged. The middle of the bracket 3 is provided with a groove 3-3 with an upward opening, and the lower end of the boom 4-1 is located in the groove 3-3. Preferably, the bracket base 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 to limit the position. It can prevent the bracket 3 from rotating excessively and cause unnecessary bumps.

The hanger 4 further includes a hanger beam 4-2, the hanger beam 4-2 is hinged with the upper end of the hanger arm 4-1, and the middle part of the hanger beam 4-2 is provided with a hanger 4-3. Preferably, the suspending beam 4-2 is in strip shape, and four suspending arms 4-1 are provided, which are respectively arranged on the four corner edges of the suspending beam 4-2, and are hinged to the suspending beam 4-2 through pins.

The reinforcing bar locating frame 5 is located at the position where the reinforcing bar is to be installed, and is used to cooperate with the main frame 1, the hanging plate 2, the bracket 3 and the spreader 4 to realize the automatic unloading of the reinforcing bar, and place the reinforcing bar in the designated position. The reinforcing bar locating frame 5 includes the limit The front and rear sides of the limit plate are respectively provided with a positioning plate 5-4 and a positioning frame 5-1, 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 limit plate are respectively provided with support seats 5-3, and guide plates 5-2 are inclined on the support seats 5-3. The positioning plate 5-4 is curved upward, and the top surface of the positioning frame 5-1 is higher than the upper surface of the limiting plate. When the main frame 1 is placed on the reinforcement positioning frame 5, the bracket 3 can be supported, so that the hanging plate 2 is folded down under the gravity of the bracket 3, the hanger 4 and the reinforcement group, so that the hanging plate 2 is opened. Release the rebar group.

The working principle of the present invention is:

Lifting the steel bar group: When the crane lifts the main frame 1 and is located directly above the steel support bracket, slowly lower the main frame 1, and at the same time, locate the guide device on the steel support bracket, so that the steel bar group lifts the hanging platform 2 to open and close. After the main frame 1 is lowered to a certain position, after the sleeve on the top of the steel bar passes through the hanging platen 2, the hanging platen 2 will return to its original position under the action of its own weight. The notches 2-3 are clamped, lift the main frame 1 of the hanger, and lift the steel bar group away from the steel support bracket;

Rebar group drop frame: place the steel bar group above the steel bar positioning frame 5 through the spreader 4, slowly lower the main frame 1, and embed each steel bar of the steel bar group under the action of the guide plate 5-2 and the positioning frame 5-1 In the positioning groove 5-5, when the main frame 1 is lowered onto the support base 5-3, the main frame 1 continues to be lowered through the hanger 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 plate 2 hang in the air. Under the action of the steel bar and the gravity of the hanging plate 2, the hanging plate 2 is folded downward, so that the hanging plate 2 is opened, the steel bars are released, and the main frame 1 is lifted upwards. The whole steel bar group can be replaced on the positioning plate 5-4, and the main frame 1 can be separated from the steel bar group for the next lifting.

As shown in Figures 8-9, the present invention also provides a method for hoisting the main bars of a towering concrete structure in batches, which is used to realize the batch and hoisting of the bars, and includes the following steps:

S1. The main frame is lifted by the sling, so that the main frame is located above the steel support bracket on which the steel bar group is placed, the main frame is lowered, and the horizontal positioning of the main frame is completed through the guide device on the steel support bracket;

S2. In the process of lowering the main frame, make the steel bar group on the steel support bracket push the two hanging plates; and pass through the gap between the two hanging plates, and continue to lower, so that the two hanging plates are in the closed under the action of its own weight;

S3. Slowly lift the main frame to make the two hanging plates clamp the steel bar group;

S4. Move the steel bar group to the top of the steel bar positioning frame, and slowly lower the main frame, so that each steel bar of the steel bar group passes through the positioning grooves on the positioning plate respectively, and continue to lower the main frame, so that the bracket drives the two hanging platens to open , to make the hanging platform give up the support, and replace the steel bar group to the steel bar spacer;

S5. Lift the main frame so that the main frame is separated from the steel bar group.

Compared with the prior art, the present invention, through the self-weight of the main frame and the hanging plate, realizes the clamping and loosening of the steel bar group, so that the large-diameter steel bars with sleeves can be automatically slotted into and out of the slot, which can effectively speed up the large-diameter steel bar with sleeves. The hoisting speed of the super-long diameter steel bar reduces the hoisting process of the large-diameter steel bar, and solves the problems of difficult positioning and low efficiency during the hoisting process of the steel bar.

The present invention is not limited to the above-mentioned best embodiment. Anyone should be aware of the structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to those of the present invention shall fall within the protection scope of the present invention. Inside.

Claims (9)

1. The utility model provides a high concrete structure owner muscle is hoist device in batches which characterized in that includes:

the middle of the main framework is provided with two hanging table plates, the inner side edges of the two hanging table plates are oppositely arranged, and the hanging table plates are provided with hanging table ear plates which are hinged with the main framework;

the lifting appliance comprises two groups of lifting arms, wherein the two groups of lifting arms are respectively used for driving the two hanging table plates to rotate through brackets, so that the inner side edges of the two hanging table plates are close to or far away from each other, the brackets are hinged with the lower ends of the lifting arms, a bracket seat is arranged on the main framework, one end of each bracket is hinged with the corresponding bracket seat, and the other end of each bracket is provided with a bearing for bearing the corresponding hanging table plate;

the reinforcing bar locating rack is located the mounted position of treating of reinforcing bar, and it includes the limiting plate, both sides are equipped with locating plate and locating rack respectively around the limiting plate, form the constant head tank between the locating plate, the left and right sides of limiting plate is equipped with the supporting seat respectively, the slope is equipped with the deflector on the supporting seat.

2. The batch hoisting device for the main bars of the high-rise concrete structure as claimed in claim 1, wherein the main frame is a rectangular frame with a hollow middle part, the hanging platform ear plate is arranged at the outer edge of the hanging platform plate, and a gap is formed between the hanging platform plate and the main frame.

3. The batch hoisting device for the main reinforcement of the high-rise concrete structure as claimed in claim 1, wherein the bracket is provided with a groove at the middle part, and the lower end of the boom is positioned in the groove.

4. The device for batch hoisting of the main reinforcement of the high-rise concrete structure as claimed in claim 1, wherein the bracket seat is provided with a bracket stop rail, and the bracket is provided with a bearing stop rail adapted to the bracket stop rail.

5. The mass hoisting device of the main reinforcement of the high-rise concrete structure as claimed in claim 1, wherein the inside edge of the hanging plate is provided with a notch for clamping the reinforcement.

6. The batch hoisting device for the main reinforcement of the high-rise concrete structure as claimed in claim 1, wherein the lifting tool further comprises a lifting beam, the lifting beam is hinged with the upper end of the lifting arm, and a lifting lug is arranged in the middle of the lifting beam.

7. The batch hoisting device for the main reinforcement of the high-rise concrete structure as claimed in claim 1, wherein the left and right sides of the position-limiting plate are respectively provided with a support seat, and the support seats are provided with guide plates thereon.

8. The batch hoisting device for the main reinforcement of the high-rise concrete structure as claimed in claim 1, wherein the positioning plate is bent upwards, and the top surface of the positioning frame is higher than the upper surface of the limiting plate.

9. A method for batch hoisting of main reinforcement of a high-rise concrete structure, which is carried out by using the hoisting device as claimed in claim 1, and comprises the following steps:

s1, hoisting the main framework through the lifting appliance, enabling the main framework to be located above the steel bar positioning frame for placing the steel bar group, lowering the main framework, and completing horizontal positioning of the main framework through a guide device on the steel bar positioning frame;

s2, in the process of lowering the main framework, the steel bar group on the steel bar positioning frame jacks up the two hanging bedplate; the hanging plates pass through the gap between the two hanging plates and are continuously lowered, so that the two hanging plates are closed under the action of self weight;

s3, slowly lifting the main framework to enable the two hanging platform boards to clamp the steel bar group tightly;

s4, moving the steel bar group to the upper part of the steel bar positioning frame, slowly lowering the main framework to enable each steel bar of the steel bar group to penetrate through the positioning groove on the positioning plate, continuously lowering the main framework to enable the bracket to drive the two hanging table plates to be opened, enabling the hanging table plates to give up support, and replacing the steel bar group to the steel bar positioning frame;

and S5, lifting the main framework to separate the main framework from the steel bar group.

Images