Lifting appliance for lifting special-shaped steel beam of suspension bridge

Abstract

The utility model provides a lifting appliance for lifting a special-shaped steel beam of a suspension bridge, which comprises a longitudinal bridge direction lifting lug, a transverse bridge direction lifting lug and a connecting plate, the longitudinal bridge direction lifting lug and the transverse bridge direction lifting lug are fixedly connected through connecting profile steel, the longitudinal bridge direction lifting lug and the transverse bridge direction lifting lug are both in pin joint with steel plate strips, the other ends of the steel plate strips are both in pin joint with the connecting plate, and the connecting plate is in pin joint with the longitudinal bridge direction lifting lug and the transverse bridge direction lifting lug. And the top end of the connecting plate is connected with hoisting equipment. According to the crane for hoisting the special-shaped steel beam, the longitudinal-bridge-direction lifting lugs and the transverse-bridge-direction lifting lugs are connected with the transverse partition plates and the joints of the transverse partition plates and the longitudinal partition plates of the special-shaped steel beam correspondingly, then the connecting plates, the steel plate strips, the hoisting steel cables and hoisting equipment are connected, and hoisting of the special-shaped steel beam is achieved. The lifting appliance is low in lifting construction cost, safe, reliable and convenient to mount and dismount, solves the lifting problem of the special-shaped steel beam, and can provide beneficial reference for other similar engineering construction.

Description

Technical Field

[0001] This utility model belongs to the field of suspension bridge construction technology, specifically relating to a lifting tool for hoisting irregularly shaped steel beams of suspension bridges. Background Technology

[0002] Steel box girders are widely used in bridges in my country due to their advantages such as high strength, light weight, convenient construction, saving on formwork and support, environmental friendliness, durability, and wide applicability. In recent years, with the continuous development of bridge technology in my country, bridge spans have become increasingly larger.

[0003] Suspension bridges are the bridge type with the strongest span capacity. The main girder of a suspension bridge is divided into two types: steel box girder and truss girder. The bridge layout is also divided into two-span (three or four-span) continuous or single-span double-girder main girder structures. The installation of the main girder is one of the key procedures in the construction of a suspension bridge.

[0004] Lifting lugs for suspension bridge steel box girders are generally located on the top of the girder. Most lifting equipment is designed with a box-shaped structure, which offers good strength, stability, and versatility. However, some steel box girders located at transition piers or towers are designed with irregular shapes. When using hydraulic lifting equipment suspended from the main cables for hoisting, the lifting lugs must be positioned directly below the lifting equipment to prevent them from twisting during hoisting and causing safety accidents. However, because the steel box girder is an irregular structure, with a width smaller than the main cable spacing, it is not possible to install lifting lugs directly below the main cables on the top surface of the girder. Therefore, a specialized design for the lifting equipment is required for the steel box girder structure. Utility Model Content

[0005] The purpose of this utility model is to provide a lifting tool for hoisting irregularly shaped steel beams of suspension bridges, overcoming the aforementioned technical problems existing in the prior art.

[0006] Therefore, the technical solution provided by this utility model is as follows:

[0007] A lifting device for hoisting irregular steel beams of a suspension bridge includes longitudinal bridge lugs, transverse bridge lugs, and connecting plates. The longitudinal bridge lugs and transverse bridge lugs are fixedly connected by connecting steel sections. Each longitudinal bridge lug and transverse bridge lug is pinned to a steel plate strip. The other end of each steel plate strip is pinned to the connecting plate. The top end of the connecting plate is connected to the hoisting equipment.

[0008] The longitudinal bridge lifting lug includes a connecting plate and a vertical plate. The vertical plates are two pieces that are vertically fixed on the connecting plate and are arranged in parallel. A top plate is fixed on the top of the two vertical plates. The top plate is provided with a lifting lug plate and an upper stiffening plate. The upper stiffening plates are symmetrically arranged on both sides of the lifting lug plate and are perpendicular to the vertical plate. Lower stiffening plates are symmetrically arranged on the two vertical plates and are perpendicular to the vertical plate. The top of the lower stiffening plate is fixed to the top plate. The upper stiffening plate and the lower stiffening plate are on the same straight line. A circular ring plate is provided on the inner side of the lifting lug plate.

[0009] The transverse bridge lug includes a connecting plate 2 and a vertical plate 2. The vertical plates 2 are vertically fixed on the connecting plate 2 and are two parallel pieces. A top plate 2 is fixed on the top of the two vertical plates 2. The top plate 2 is provided with a lug plate 2 and a stiffening plate. The stiffening plate is symmetrically arranged on both sides of the lug plate 2. The stiffening plate and the vertical plate 2 are parallel and on the same straight line. A circular ring plate 2 is provided on the inner side of the lug plate 2.

[0010] The longitudinal bridge lugs are fixed to the transverse diaphragms of the irregular steel beam, and the transverse bridge lugs are fixed to the junction of the transverse and longitudinal diaphragms of the irregular steel beam.

[0011] The upper stiffening plate is a trapezoidal stiffening plate, and the lower stiffening plate is a rectangular stiffening plate.

[0012] The connecting steel and the lower stiffening plate are fixedly connected.

[0013] The stiffening plate is trapezoidal.

[0014] The connecting steel and the vertical plate are fixedly connected.

[0015] The connecting plate is a steel plate with a triangular structure and connecting holes at each of the three vertices.

[0016] Both ends of the steel strip are provided with connection holes. The connection hole at one end is connected to the connecting plate by a pin, and the connection hole at the other end is connected to the longitudinal bridge lifting lug or the transverse bridge lifting lug by a pin.

[0017] The beneficial effects of this utility model are:

[0018] The lifting tool for lifting irregularly shaped steel beams of suspension bridges provided by this utility model connects the longitudinal bridge lifting lugs and the transverse bridge lifting lugs to the transverse diaphragms and the junctions of the transverse diaphragms and longitudinal diaphragms of the irregularly shaped steel beams, respectively. Then, it is connected by connecting plates, steel strips, lifting steel cables and lifting equipment to achieve the lifting of irregularly shaped steel beams.

[0019] The lifting tool for irregularly shaped steel beams has a simple structure, low construction cost, high safety and reliability, convenient installation and disassembly, and solves the problem of lifting irregularly shaped steel beams. It can provide a useful reference for the construction of other similar projects. Attached Figure Description

[0020] Figure 1 This is an elevation view of one embodiment of the present utility model;

[0021] Figure 2 This is a side view of one embodiment of the present invention;

[0022] Figure 3 This is a top view of one embodiment of the present invention;

[0023] Figure 4 This is an elevation view of one implementation method of the longitudinal bridge suspension lug;

[0024] Figure 5 This is a side view of one implementation of the longitudinal bridge lifting lug;

[0025] Figure 6 This is an elevation view of one implementation method of the transverse bridge lug;

[0026] Figure 7 This is a side view of one implementation of the transverse bridge lifting lug;

[0027] Figure 8 This is an elevation view of the on-site hoisting of irregularly shaped steel beams;

[0028] Figure 9 This is a side view of the irregularly shaped steel beam being hoisted on site;

[0029] Figure 10 This is a plan view of the on-site hoisting of irregularly shaped steel beams.

[0030] In the diagram: 1. Connecting plate; 2. Steel strip; 3. Longitudinal bridge lifting lug; 31. Lifting lug plate one; 32. Circular ring plate one; 33. Upper stiffening plate; 34. Lower stiffening plate; 35. Connecting plate one; 36. Vertical plate one; 37. Bolt one; 38. Top plate one; 4. Transverse bridge lifting lug; 41. Lifting lug plate two; 42. Circular ring plate two; 43. Stiffening plate; 44. Vertical plate two; 45. Connecting plate two; 46. Bolt two; 47. Top plate two; 5. Connecting steel section; 6. Irregular steel beam; 61. Transverse diaphragm; 62. Longitudinal diaphragm; 7. Lifting equipment; 8. Temporary cable clamp; 9. Main cable. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0032] Exemplary embodiments of the present invention are now described with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to fully and completely disclose the present invention and to fully convey its scope to those skilled in the art. The terminology used in the exemplary embodiments shown in the drawings is not intended to limit the present invention. In the drawings, the same units / elements are referred to by the same reference numerals.

[0033] Unless otherwise stated, the terms used herein (including technical terms) have their common meaning as understood by one of ordinary skill in the art. Furthermore, it is understood that terms defined in commonly used dictionaries should be understood to have a meaning consistent with the context of their relevant field, and not to be interpreted as having an idealized or overly formal meaning.

[0034] Example 1

[0035] This embodiment provides a lifting tool for hoisting irregularly shaped steel beams of suspension bridges, such as... Figure 1 , Figure 2 and Figure 3 As shown, it includes a longitudinal bridge lifting lug 3, a transverse bridge lifting lug 4, and a connecting plate 1. The longitudinal bridge lifting lug 3 and the transverse bridge lifting lug 4 are fixedly connected by connecting steel sections 5. Both the longitudinal bridge lifting lug 3 and the transverse bridge lifting lug 4 are pinned to steel plate strips 2. The other end of each steel plate strip 2 is pinned to the connecting plate 1. The top end of the connecting plate 1 is connected to the lifting equipment 7.

[0036] When hoisting the irregular steel beam 6, the hoisting tool for the irregular steel beam of the suspension bridge provided by this utility model is symmetrically set at both ends of the irregular steel beam 6. The longitudinal bridge lifting lug 3 and the transverse bridge lifting lug 4 are respectively connected to the transverse diaphragm 61 and the junction of the transverse diaphragm 61 and the longitudinal diaphragm 62 of the irregular steel beam 6. Then, the longitudinal bridge lifting lug 3 and the transverse bridge lifting lug 4 are fixedly connected by the connecting steel 5. Then, the longitudinal bridge lifting lug 3 and the transverse bridge lifting lug 4 at both ends are connected to the connecting plate 1 by the steel plate strip 2. The two connecting plates 1 are connected by the hoisting steel cable and the hoisting equipment 7 to realize the hoisting of the irregular steel beam 6.

[0037] Example 2

[0038] Based on Example 1, this example provides a lifting tool for hoisting irregularly shaped steel beams of suspension bridges, such as... Figure 4As shown, the longitudinal bridge lifting lug 3 includes a connecting plate 35 and a vertical plate 36. The vertical plates 36 are two pieces vertically fixed on the connecting plate 35 and arranged in parallel. A top plate 38 is fixed on the top of the two vertical plates 36. The top plate 38 is provided with a lifting lug plate 31 and an upper stiffening plate 33. The upper stiffening plate 33 is symmetrically arranged on both sides of the lifting lug plate 31. The upper stiffening plate 33 is perpendicular to the vertical plate 36. Lower stiffening plates 34 are symmetrically arranged on the two vertical plates 36. The lower stiffening plate 34 is perpendicular to the vertical plate 36. The top of the lower stiffening plate 34 is fixedly connected to the top plate 38. The upper stiffening plate 33 and the lower stiffening plate 34 are on the same straight line. A circular ring plate 32 is provided on the inner side of the lifting lug plate 31.

[0039] like Figure 4 As shown, in this embodiment, the vertical plate 36 is a right trapezoid. Figure 1 As shown, the connecting steel section 5 and the lower stiffening plate 34 are fixedly connected. The upper stiffening plate 33 is a trapezoidal stiffening plate 43, and the lower stiffening plate 34 is a rectangular stiffening plate 43. The upper stiffening plate 33 and the lower stiffening plate 34 improve the stiffness and strength of the longitudinal bridge lug 3, thereby enabling it to bear greater loads without failure.

[0040] Example 3

[0041] Based on Example 1, this example provides a lifting tool for hoisting irregularly shaped steel beams of suspension bridges, such as... Figure 6 As shown, the transverse bridge lug 4 includes a connecting plate 2 45 and a vertical plate 2 44. The vertical plates 2 44 are vertically fixed on the connecting plate 2 45 and are two parallel pieces. A top plate 2 47 is fixed on the top of the two vertical plates 2 44. The top plate 2 47 is provided with a lug plate 2 41 and a stiffening plate 43. The stiffening plates 43 are symmetrically arranged on both sides of the lug plate 2 41. The stiffening plates 43 and the vertical plates 2 44 are parallel and on the same straight line. A circular ring plate 2 42 is provided on the inner side of the lug plate 2 41.

[0042] like Figure 6 As shown, in this embodiment, the vertical plate 44 is a right trapezoid. Figure 1 As shown, the connecting steel section 5 and the vertical plate 44 are fixedly connected. The stiffening plate 43 is trapezoidal and is used to improve the stiffness and strength of the transverse lifting lug 4.

[0043] Example 4

[0044] Based on Embodiment 1, this embodiment provides a lifting tool for hoisting irregular steel beams of suspension bridges. The longitudinal bridge lifting lug 3 is fixed on the transverse diaphragm 61 of the irregular steel beam 6, and the transverse bridge lifting lug 4 is fixed at the junction of the transverse diaphragm 61 and the longitudinal diaphragm 62 of the irregular steel beam 6.

[0045] like Figure 3 and Figure 5As shown, the longitudinal lifting lug 3 is fixed to the transverse diaphragm 61 of the irregular steel beam 6 by bolts 37. Figure 3 and Figure 7 As shown, the transverse bridge lug 4 is fixed to the junction of the transverse diaphragm 61 and the longitudinal diaphragm 62 of the irregular steel beam 6 by bolt 2 46 (i.e., the end of the irregular steel beam 6 along the length direction).

[0046] Example 5

[0047] Based on Embodiment 1, this embodiment provides a lifting tool for hoisting irregular steel beams of suspension bridges, including a connecting plate 1, a steel strip 2, a longitudinal bridge lifting lug 3, a transverse bridge lifting lug 4, and a connecting steel section 5.

[0048] The connecting plate 1 is a steel plate with an overall triangular structure. The connecting plate 1 has three connecting holes. The upper connecting hole is used to connect the hoisting equipment 7, and the two lower connecting holes are used to connect the steel plate strip 2.

[0049] The steel strip 2 is made of steel plate, and both ends are provided with connecting holes. The connecting hole at one end is fixed to the connecting plate 1 by a pin, and the connecting hole at the other end is fixed to the longitudinal bridge lifting lug 3 and the transverse bridge lifting lug 4 by a pin respectively.

[0050] The longitudinal bridge hanger 3 consists of hanger plate 31, circular ring plate 32, trapezoidal stiffening plate (upper stiffening plate 33), rectangular stiffening plate (lower stiffening plate 34), connecting plate 35, vertical plate 36, bolt 37, and top plate 38. Two circular ring plates 32 are attached to the inside of hanger plate 31 to enhance its strength and stability. Vertical plate 36 is aligned with hanger plate 31. Trapezoidal stiffening plate 43 is aligned with rectangular stiffening plate 43. Connecting plate 35 is fixed to the transverse diaphragm 61 of the irregular steel beam 6 by bolt 37.

[0051] The transverse bridge lug 4 consists of lug plate 2 41, annular plate 2 42, trapezoidal stiffening plate 43 (stiffening plate 43), vertical plate 2 44, connecting plate 2 45, bolt 2 46, and top plate 2 47. Two annular plates 2 42 are attached to the inner side of lug plate 2 41 to enhance its strength and stability. Vertical plate 2 44 and trapezoidal stiffening plate 43 are on the same line. Connecting plate 2 45 is fixed to the junction of transverse diaphragm 61 and longitudinal diaphragm 62 within the irregular steel beam 6 by bolt 2 46.

[0052] The connecting steel section 5 adopts an I-beam structure, with the lower stiffening plate 34 of the longitudinal bridge lifting lug 3 and the vertical plate 44 of the transverse bridge lifting lug 4 respectively at both ends, to enhance the overall strength and stability of the lifting device.

[0053] During hoisting, if Figure 8 , Figure 10As shown, the lifting tools for the two sets of irregular steel beams of the suspension bridge are connected to both ends of the irregular steel beam 6, and are lifted by the lifting equipment 7.

[0054] The usage process is as follows:

[0055] 1. When processing the irregular steel beam 6, the bolt holes corresponding to the longitudinal bridge lifting lug 3 and the transverse bridge lifting lug 4 are processed in advance, and then the irregular steel beam 6 is transported to the hoisting position by ship.

[0056] 2. The longitudinal bridge lug 3, the transverse bridge lug 4, and the connecting steel 5 are prefabricated into a whole, and then connected to the irregular steel beam 6 by bolt 37 and bolt 46 respectively.

[0057] 3. Install steel plate strip 2: The connecting hole at one end of steel plate strip 2 is connected to the round hole on the lifting plate 31 on the longitudinal bridge direction lifting lug 3 and the lifting plate 41 on the transverse bridge direction lifting lug 4 by means of a pin.

[0058] 4. Install connecting plate 1: The two holes at the bottom of connecting plate 1 are connected to the connecting holes on steel strip 2 by means of pins.

[0059] 5. Install temporary cable clamps 8 on the main cable 9, then fix the hoisting equipment 7 onto the temporary cable clamps 8, and connect the anchor head of the hoisting equipment 7 to the connecting hole on the connecting plate 1. Start the hoisting equipment 7 to hoist the steel box girder to the designed position. Figure 9 As shown.

[0060] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A lifting device for hoisting irregularly shaped steel beams of a suspension bridge, characterized in that: The application relates to a longitudinal bridge hoist lug, a transverse bridge hoist lug and a connecting plate, wherein the longitudinal bridge hoist lug and the transverse bridge hoist lug are connected by connecting type steel, the longitudinal bridge hoist lug and the transverse bridge hoist lug are both pinned with a steel plate belt, the other end of the steel plate belt is pinned with the connecting plate, and the top end of the connecting plate is connected with hoisting equipment.

2. The sling according to claim 1, characterized in that: The longitudinal bridge hoist lug comprises a connecting plate one and two vertical plates one, the two vertical plates one are vertically fixed on the connecting plate one and are arranged in parallel, the top of the two vertical plates one is fixed with a top plate one, the top plate one is provided with a lug plate one and an upper stiffening plate, the upper stiffening plate is symmetrically arranged on the two sides of the lug plate one, the upper stiffening plate is perpendicular to the vertical plate one, the two vertical plates one are symmetrically provided with a lower stiffening plate, the lower stiffening plate is perpendicular to the vertical plate one, the top of the lower stiffening plate is fixed with the top plate one, the upper stiffening plate and the lower stiffening plate are on the same straight line, and the inner side of the lug plate one is provided with a circular ring plate one.

3. The sling according to claim 1, characterized in that: The transverse bridge hoist lug comprises a connecting plate two and two vertical plates two, the two vertical plates two are vertically fixed on the connecting plate two and are arranged in parallel, the top of the two vertical plates two is fixed with a top plate two, the top plate two is provided with a lug plate two and a stiffening plate, the stiffening plate is symmetrically arranged on the two sides of the lug plate two, the stiffening plate is parallel to the vertical plate two and is on the same straight line, and the inner side of the lug plate two is provided with a circular ring plate two.

4. The sling according to claim 1, characterized in that: The longitudinal bridge hoist lug is fixed on the transverse partition plate of the special-shaped steel beam, and the transverse bridge hoist lug is fixed at the joint of the transverse partition plate and the longitudinal partition plate of the special-shaped steel beam.

5. The sling according to claim 2, characterized in that: The upper stiffening plate is a trapezoidal stiffening plate, and the lower stiffening plate is a rectangular stiffening plate.

6. The sling according to claim 2, characterized in that: The connecting type steel is fixed with the lower stiffening plate.

7. The sling according to claim 3, characterized in that: The stiffening plate is trapezoidal.

8. The sling according to claim 3, characterized in that: The connecting type steel is fixed with the vertical plate two.

9. The sling according to any one of claims 1-8, characterized in that: The connecting plate is a steel plate, has a triangular structure and is provided with connecting holes at three top points.

10. The sling according to any one of claims 1-8, characterized in that: The two ends of the steel plate belt are provided with connecting holes, the connecting hole at one end is connected with the connecting plate through a pin shaft, and the connecting hole at the other end is connected with the longitudinal bridge hoist lug or the transverse bridge hoist lug through a pin shaft.

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