CN108706438B - Lifting appliance for construction of large I-shaped structure - Google Patents

Abstract

The invention provides a lifting appliance for construction of a large I-shaped structure, which comprises two lifting appliance upper vertical steel plates, lifting appliance upper horizontal steel plates, two lifting appliance lower steel plates, a first rubber gasket and a second rubber gasket; the two vertical steel plates at the upper part of the lifting appliance are arranged on the horizontal steel plate at the upper part of the lifting appliance in parallel, the two steel plates at the lower part of the horizontal steel plate at the upper part of the lifting appliance, second rubber pads are arranged between the two steel plates at the lower part of the lifting appliance and the horizontal steel plate at the upper part of the lifting appliance, and a T-shaped gap is formed among the horizontal steel plate at the upper part of the lifting appliance, the two steel plates at the lower part of the lifting appliance and the second rubber pads; the steel plates at the lower parts of the two lifting appliances are respectively provided with a first rubber pad. The invention has simple structure, flexible use and less turnover investment, and can also solve the problem of damage to the coating of the steel structure. The lifting appliance can adjust the size of the steel plate and the size of the bolt according to the weight of the lifting weight, and the use is very flexible.

Description

A kind of lifting device for large I-shaped structure construction

Technical Field

The invention relates to construction equipment, in particular to a hoisting device for large I-shaped structure construction.

Background technique

I-shaped steel beams are increasingly used in steel bridges. For large-span steel structures, they are hoisted in blocks. The hoisting weight is relatively large, and the hoists used are also different. When the steel structure is painted, the hoists may have a destructive effect on the steel structure itself or the paint.

For I-section structures, the following methods are generally used: (1) Welding special lifting lugs as lifting points, and then connecting wire ropes and shackles. (2) Opening a relatively large diameter hole on the web, using steel plates and large pins to connect, and then connecting wire ropes. (3) Using a large frame to suspend the structure, and then connecting it with wire ropes. These methods all have disadvantages. Method (1) produces a large number of lifting lugs, which consumes a lot of steel and damages the paint. After the lifting is completed, it needs to be cut off and then painted, which increases the cost and has many processes and affects the structure. Method (2) damages the structure and requires structural reinforcement. At the same time, the consent of the designer must be obtained. (3) The material increases a lot, and the lateral limit needs to be increased, which has high costs and risks.

To this end, a construction hanger with an I-shaped cross-section is designed, which can be used repeatedly without damaging the structure and coating, requires little investment, and improves the safety factor of the hanger during the construction process.

Summary of the invention

In order to solve the problem that the traditional slings may damage the structure or coating during the lifting process, or have unnecessary investment and high safety risks, the present invention provides a large-scale I-shaped structure construction sling. One of the purposes of the present invention is to set a non-slip first rubber pad on the lower steel plate of the sling to ensure the integrity of the structure to be lifted. The second purpose of the present invention is that the sling can be used repeatedly without damaging the steel structure and coating, is easy to disassemble, flexible to use and has low investment.

The technical solution adopted by the present invention is:

A sling for construction of a large I-shaped structure, comprising two upper vertical steel plates of the sling, an upper horizontal steel plate of the sling, two lower steel plates of the sling, a first rubber pad and a second rubber pad; the two upper vertical steel plates of the sling are arranged in parallel on the upper horizontal steel plate of the sling, the two lower steel plates of the sling are arranged at the lower end of the upper horizontal steel plate of the sling, the second rubber pad is arranged between the two lower steel plates of the sling and the upper horizontal steel plate of the sling, a T-shaped gap is formed between the upper horizontal steel plate of the sling, the two lower steel plates of the sling and the second rubber pad; the first rubber pad is arranged on the two lower steel plates of the sling.

The lower steel plate of the sling is a 90° bent steel plate, and lower stiffening ribs are respectively arranged on the two lower steel plates of the slings. The lower stiffening ribs 5 are located in the bend of the 90° bent steel plate. The bend of the 90° bent steel plate is an arc, and the first rubber pad is arranged on the two right-angled sides of the 90° bent steel plate.

The upper horizontal steel plate of the sling is connected to the two lower steel plates of the slings by flange bolts.

The lower parts of the lower steel plates of the two slings are connected by web bolts.

Upper stiffening ribs are arranged on the upper vertical steel plates of the two hangers and the upper horizontal steel plates of the hangers.

There are multiple upper stiffening ribs.

The upper parts of the vertical steel plates on the two hangers are both provided with round holes.

The second rubber pad is thicker than the first rubber pad.

The beneficial effects of the present invention are:

The sling provided by the present invention solves the problem that the traditional sling may damage the structure or coating during the lifting process, or cause unnecessary investment and high safety risks. The present invention provides a non-slip first rubber pad on the lower steel plate of the sling to ensure the integrity of the structure to be lifted. The sling provided by the present invention can be used repeatedly without damaging the steel structure and coating, is easy to disassemble, flexible to use and requires little investment.

The present invention solves the problem that traditional slings weld lifting ears or open holes on I-shaped structures and use pins to connect, or invest a large amount of frame steel structure and cannot guarantee anti-slip, solves the disadvantages of high investment and damage to the structure, and at the same time, the structure is simple, flexible to use, and can be turned around with low investment, and can also solve the problem of damage to the steel structure coating. The sling can adjust the size of the steel plate and the size of the bolt according to the weight of the lifting weight, and the use is very flexible.

The present invention will be further described in detail below with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the structure of a construction hanger.

Figure 2 Plan view of the construction hoist.

In the figure, the reference numerals are: 1. upper vertical steel plate of the sling; 2. upper horizontal steel plate of the sling; 3. lower steel plate of the sling; 4. upper stiffening rib; 5. lower stiffening rib; 6. flange bolts; 7. web bolts; 8. first rubber pad; 9. second rubber pad.

Detailed ways

Embodiment 1:

In order to solve the problem that the traditional slings may damage the structure or coating during the hoisting process, or have unnecessary investment and high safety risks, the present invention provides a large-scale I-shaped structure construction sling as shown in Figures 1 and 2. One of the purposes of the present invention is to set a non-slip first rubber pad on the lower steel plate of the sling to ensure the integrity of the structure to be hoisted. The second purpose of the present invention is that the sling can be used repeatedly without damaging the steel structure and coating, is easy to disassemble, flexible to use and has low investment.

A sling for construction of a large I-shaped structure, comprising two upper vertical steel plates 1 of the sling, an upper horizontal steel plate 2 of the sling, two lower steel plates 3 of the sling, a first rubber pad 8 and a second rubber pad 9; the two upper vertical steel plates 1 of the sling are arranged in parallel on the upper horizontal steel plate 2 of the sling, the two lower steel plates 3 of the sling are arranged at the lower end of the upper horizontal steel plate 2 of the sling, the second rubber pad 9 is arranged between the two lower steel plates 3 of the sling and the upper horizontal steel plate 2 of the sling, a T-shaped gap is formed between the upper horizontal steel plate 2 of the sling, the two lower steel plates 3 of the sling and the second rubber pad 9; the first rubber pad 8 is arranged on the two lower steel plates 3 of the sling.

The working principle of a hoist for large I-shaped structure construction provided in this specification is: during the lifting process of the I-shaped steel structure beam 11, four-point vertical lifting is generally adopted. The lifting requires a steel wire rope 10 to connect the two upper vertical steel plates 1 of the hoist. The hoist needs to correctly connect the steel structure and correctly place the I-shaped steel structure beam 11 in a T-shaped gap formed between the upper horizontal steel plate 2 of the hoist, the two lower steel plates 3 of the hoist and the second rubber pad 9. The hoist clamps the I-shaped structure flange through the lower steel plate 3 of the hoist and tightens it with bolts. In order to prevent slippage, a first rubber pad is added to the contact surface of the lower steel plate 3 of the hoist and the I-shaped steel. An I-shaped steel structure beam 11 is hoisted between the upper horizontal steel plate 2 of the sling and the two lower steel plates 3 of the sling. The I-shaped steel structure beam 11 is installed with a second rubber pad 9 except for the flange steel plate. When the flange bolts 6 are tightened, the upper horizontal steel plate 2 of the sling and the two lower steel plates 3 of the sling are prevented from being deformed. The steel wire rope 10 is connected to the sling, and the lifting equipment is used for lifting.

The present invention solves the problem that traditional slings weld lifting ears or open holes on I-shaped structures and use pins to connect, or invest a large amount of frame steel structure and cannot guarantee anti-slip, solves the disadvantages of high investment and damage to the structure, and at the same time, the structure is simple, flexible to use, and can be turned around with low investment, and can also solve the problem of damage to the steel structure coating. The sling can adjust the size of the steel plate and the size of the bolt according to the weight of the lifting weight, and the use is very flexible.

Embodiment 2:

Based on the above embodiments, in this embodiment, the lower steel plate 3 of the sling is a 90° bent steel plate, and lower stiffening ribs 5 are respectively provided on the two lower steel plates 3 of the slings. The lower stiffening ribs 5 are located in the bend of the 90° bent steel plate, and the bend of the 90° bent steel plate is an arc. The first rubber pad 8 is arranged on the two right-angled sides of the 90° bent steel plate.

In this embodiment, the lower steel plate 3 of the sling is a 90° bent steel plate, and the bending part of the 90° bent steel plate is an arc. The design of the arc ensures that the I-shaped steel structure beam 11 will not touch the corner of the lower steel plate 3 of the sling during the lifting process, thereby ensuring the structural integrity of the I-shaped steel structure beam 11.

As shown in FIG. 2 , the upper horizontal steel plate 2 of the sling is connected to the two lower steel plates 3 of the sling via flange bolts 6 .

The lower parts of the two lower steel plates 3 of the slings are connected by web bolts 7 .

Upper stiffening ribs 4 are provided on the two upper vertical steel plates 1 of the hangers and the upper horizontal steel plates 2 of the hangers.

The upper stiffening ribs 4 are multiple.

The upper parts of the vertical steel plates 1 on the two hangers are both provided with round holes.

The second rubber pad 9 is thicker than the first rubber pad 8 .

During the lifting process of the I-shaped steel structure beam 11, four-point vertical lifting is generally adopted. The lifting requires a steel wire rope 10 to connect the two upper vertical steel plates 1 of the lift. The lift needs to correctly connect the steel structure and correctly place the I-shaped steel structure beam 11 in a T-shaped gap formed between the upper horizontal steel plate 2 of the lift, the two lower steel plates 3 of the lift and the second rubber pad 9. The lift clamps the I-shaped structure flange through the lower steel plate 3 of the lift and tightens it with bolts. In order to prevent slippage, a first rubber pad is added to the contact surface of the lower steel plate 3 of the lift and the I-shaped steel. An I-shaped steel structure beam 11 is hoisted between the upper horizontal steel plate 2 of the hoist and the two lower steel plates 3 of the hoist. The I-shaped steel structure beam 11 is installed with a second rubber pad 9 except for the flange steel plate. When the flange bolts 6 are tightened, the upper horizontal steel plate 2 of the hoist and the two lower steel plates 3 of the hoist are prevented from being deformed. The hoist is connected to the I-shaped steel structure beam 11 as a whole by tightening the flange bolts 6 and the web bolts 7. The wire rope 10 is connected to the hoist, and the lifting equipment is used for lifting.

In this embodiment, as shown in FIG1 , FIG1 is a schematic diagram of the structure of the construction hanger, wherein (a) is the main view of the structure, and (b) is the side view of the structure. The two upper vertical steel plates 1 of the hangers are integral with the upper horizontal steel plates 2 of the hangers and the upper stiffening ribs 4; the lower steel plate 3 of the hanger and its corresponding lower stiffening rib 5 are integral, a total of 2 pieces, placed at the lower part of the flange of the I-shaped steel structure beam 11; two small holes are opened in the I-shaped steel structure beam 11 to install small diameter bolts, the main purpose of which is to tighten the lower steel plates 3 of the hanger on both sides of the web of the I-shaped steel structure beam 11.

The present invention solves the problem that traditional slings weld lifting ears or open holes on I-shaped structures and use pins to connect, or invest a large amount of frame steel structure and cannot guarantee anti-slip, solves the disadvantages of high investment and damage to the structure, and at the same time, the structure is simple, flexible to use, and can be turned around with low investment, and can also solve the problem of damage to the steel structure coating. The sling can adjust the size of the steel plate and the size of the bolt according to the weight of the lifting weight, and the use is very flexible.

The above examples are merely illustrative of the invention and do not constitute a limitation on the protection scope of the invention. All designs that are identical or similar to the present invention fall within the protection scope of the present invention.

Claims (6)

1. The utility model provides a large-scale I-shaped structure hoist for construction which characterized in that: the lifting device comprises two lifting device upper vertical steel plates (1), lifting device upper horizontal steel plates (2), two lifting device lower steel plates (3), a first rubber pad (8) and a second rubber pad (9); the two lifting appliance upper vertical steel plates (1) are arranged on the lifting appliance upper horizontal steel plates (2) in parallel, the two lifting appliance lower steel plates (3) are arranged at the lower ends of the lifting appliance upper horizontal steel plates (2), second rubber pads (9) are arranged between the two lifting appliance lower steel plates (3) and the lifting appliance upper horizontal steel plates (2), and a T-shaped gap is formed among the lifting appliance upper horizontal steel plates (2), the two lifting appliance lower steel plates (3) and the second rubber pads (9); a first rubber pad (8) is arranged on each of the two lifting appliance lower steel plates (3); the lower steel plates (3) of the lifting appliances are 90-degree bending steel plates, lower stiffening ribs (5) are respectively arranged on the two lower steel plates (3) of the lifting appliances, the lower stiffening ribs (5) are positioned in the bending of the 90-degree bending steel plates, the bending positions of the 90-degree bending steel plates are arc-shaped, and the first rubber pads (8) are arranged on two right-angle edges of the 90-degree bending steel plates; the second rubber pad (9) is thicker than the first rubber pad (8); the steel plate (3) at the lower part of the lifting appliance and the corresponding lower stiffening rib (5) are integrated and are arranged at the lower part of the flange of the I-shaped steel structure beam (11); two small-diameter bolts are arranged on the H-shaped steel structure beam (11), and the lower steel plates (3) of the lifting appliances on the two sides of the web plate of the H-shaped steel structure beam (11) are tensioned.

2. The lifting appliance for large I-shaped structure construction according to claim 1, wherein: the upper horizontal steel plates (2) of the lifting appliance are connected with the lower steel plates (3) of the two lifting appliances through flange bolts (6).

3. The lifting appliance for large I-shaped structure construction according to claim 1, wherein: the lower parts of the two lifting appliance lower steel plates (3) are connected through web bolts (7).

4. The lifting appliance for large I-shaped structure construction according to claim 1, wherein: the upper stiffening ribs (4) are arranged on the two vertical steel plates (1) on the upper parts of the lifting appliances and the horizontal steel plate (2) on the upper parts of the lifting appliances.

5. The lifting appliance for large I-shaped structure construction according to claim 4, wherein: the number of the upper stiffening ribs (4) is multiple.

6. The lifting appliance for large I-shaped structure construction according to claim 1, wherein: round holes are formed in the upper parts of the two lifting appliance upper vertical steel plates (1).