Universal lifting appliance for flat type steel-concrete composite beam

Abstract

The utility model discloses a flat type steel-concrete composite beam universal lifting appliance, which relates to the technical field of steel-concrete composite beam lifting construction and comprises a first steel beam lifting appliance and a second steel beam lifting appliance, and a first connecting beam and a second connecting beam are respectively arranged between the first steel beam lifting appliance and the second steel beam lifting appliance. A first bridge deck slab lifting appliance and a second bridge deck slab lifting appliance are arranged at the bottoms of the first connecting beam and the second connecting beam respectively, the first bridge deck slab lifting appliance comprises an upper bearing beam, a lower bearing beam and the like, and the structure of the second bridge deck slab lifting appliance is the same as that of the first bridge deck slab lifting appliance. When the hoisting tool is used for hoisting the flat steel-concrete composite beam, the transport capacity of a cable crane can be utilized to the greatest extent, the problem of stability control in the transportation process of the flat steel-concrete composite beam is solved, a new measure of sharing the hoisting tool by the beam and the slab is realized, the construction cost can be saved, the construction efficiency is improved, the safety risk is reduced, and the construction quality is ensured; the method can be widely applied to hoisting construction of the flat steel-concrete composite beam.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-concrete combined beam hoisting construction, in particular to a universal hoisting device for flat steel-concrete combined beams. Background Art

[0002] Steel-concrete composite beams share the load with both the steel beam and the concrete slab (bridge deck), relying on shear force transfer to ensure their coordinated operation. This combined cross-section utilizes the tensile strength of the steel beam and the compressive strength of the concrete slab. Flat steel-concrete composite beams have a smaller aspect ratio, maximizing the mechanical properties of both. However, their cross-section has low in-plane torsional stiffness, posing a risk of instability during lifting using existing cable hoists. Furthermore, existing cable hoists are not very versatile and can only be used for steel beams alone, failing to meet the universal lifting requirements for both steel beams and concrete slabs. Existing prefabricated bridge deck lifting devices are often only suitable for bridge decks alone, failing to meet the universal lifting requirements for both steel beams and bridge decks. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a universal hoist for flat steel-concrete composite beams, which is capable of meeting the universal hoisting requirements of steel beams and concrete slabs, in response to the above-mentioned deficiencies in the existing technology.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a universal sling for a flat steel-concrete combined beam, comprising a first steel beam sling and a second steel beam sling, a first connecting beam and a second connecting beam are respectively provided between the first steel beam sling and the second steel beam sling, and a first bridge deck sling and a second bridge deck sling are respectively provided at the bottom of the first connecting beam and the second connecting beam; the first bridge deck sling comprises an upper carrying beam and a lower carrying beam, there is one group of upper carrying beams, and there are two groups of lower carrying beams, the upper carrying beams are connected to the two groups of lower carrying beams through a first hanging plate and a second hanging plate to form two groups of lifting structures, the lower ends of the first hanging plates on both sides of the lifting structure are connected to the upper end of the second hanging plate through a pin sleeve, a first pin shaft and a cotter pin, the upper end of the first hanging plate is connected to the upper carrying beam through a second pin shaft and a cotter pin, the lower end of the second hanging plate is connected to the lower carrying beam through a second pin shaft and a cotter pin, and the structure of the second bridge deck sling is the same as that of the first bridge deck sling.

[0005] Furthermore, the first steel beam hanger includes a hanging beam, a hanging lug is provided in the middle of the hanging beam, rollers are provided at both ends of the hanging beam, and the structure of the second steel beam hanger is the same as that of the first steel beam hanger.

[0006] Furthermore, the first connecting beam is welded by an upper wing plate, two webs arranged vertically at intervals in the middle, and a bottom wing plate, and the structure of the second connecting beam is the same as that of the first connecting beam; the first connecting beam and the second connecting beam are arranged in parallel, and the two ends of the first connecting beam and the second connecting beam are respectively bolted to the first steel beam hanger and the second steel beam hanger.

[0007] Furthermore, two groups of I-beams arranged in a cross shape and two groups of I-beams arranged transversely are welded between the first connecting beam and the second connecting beam.

[0008] Furthermore, the top ends of the first bridge deck hanger and the second bridge deck hanger are respectively provided with connecting ears, and the bottoms of the first connecting beam and the second connecting beam are correspondingly provided with connecting ears, and the two are connected by a pin shaft.

[0009] Furthermore, the upper carrying beam is welded by the upper wing plate, two webs arranged vertically at intervals in the middle, and the bottom wing plate. Reinforcement plates are respectively provided between the upper wing plate and the two connecting ears, and the bottom wing plate is correspondingly provided with a reinforcement plate; the lower carrying beam is welded by the upper wing plate, two webs arranged vertically at intervals in the middle, and the bottom wing plate.

[0010] Furthermore, a rubber gasket is provided on the lower carrying beam.

[0011] Furthermore, a chain is provided on the second hanging plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model can effectively solve the stability control problem of the flat steel-concrete composite beam during transportation by arranging the first connecting beam and the second connecting beam between the first steel beam hoist and the second steel beam hoist;

[0014] The utility model can realize the lifting of the bridge deck by arranging the first bridge deck hoist and the second bridge deck hoist at the bottom of the first connecting beam and the second connecting beam respectively, so as to work together;

[0015] The first bridge deck hoist of the present invention includes an upper carrying beam and a lower carrying beam, there is one group of upper carrying beams, and there are two groups of lower carrying beams. The upper carrying beams are connected to the two groups of lower carrying beams through the first hanging plate and the second hanging plate to form two groups of lifting structures. The lower ends of the first hanging plates on both sides of the lifting structure are connected to the upper ends of the second hanging plates through the pin sleeve, the first pin shaft and the cotter pin. The upper ends of the first hanging plates are connected to the upper carrying beams through the second pin shaft and the cotter pin. The lower ends of the second hanging plates are connected to the lower carrying beams through the second pin shaft and the cotter pin. The structure of the second bridge deck hoist is the same as that of the first bridge deck hoist. After the bridge deck is lifted, the steel beams can be lifted by retracting the first bridge deck hoist and the second bridge deck hoist, which can meet the general lifting requirements of steel beams and concrete slabs.

[0016] In summary, when the utility model is used for the hoisting construction of flat steel-concrete composite beams, the transportation capacity of the cable crane can be utilized to the maximum extent, which not only solves the stability control problem of the flat steel-concrete composite beams during transportation, but also realizes the new measure of beam-slab shared hoisting equipment, which can save construction costs, improve construction efficiency, reduce safety risks, and ensure construction quality. It can be widely used in the hoisting construction of flat steel-concrete composite beams and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view of an embodiment of a universal lifting device for flat steel-concrete composite beams of the utility model;

[0018] Figure 2 for Figure 1 a left side view of the illustrated embodiment;

[0019] Figure 3 for Figure 1 a front view of the illustrated embodiment;

[0020] Figure 4 for Figure 1 A front view of the first bridge deck spreader of the illustrated embodiment;

[0021] Figure 5 for Figure 1 a top view of the first deck spreader of the illustrated embodiment;

[0022] Figure 6 for Figure 1 an enlarged side view of the first bridge deck spreader of the illustrated embodiment;

[0023] Description of reference numerals in the figures:

[0024] 1. First steel beam hoist, 1-1, lifting beam, 1-2, lifting lug, 1-3, roller;

[0025] 2. Second steel beam hoist;

[0026] 3. First connecting beam;

[0027] 4. Second connecting beam;

[0028] 5. First bridge deck hoist, 5-1. Upper carrying beam, 5-2. Lower carrying beam, 5-3. First hanging plate, 5-4. Second hanging plate, 5-5. Pin sleeve, 5-6. First pin shaft, 5-7. Second pin shaft, 5-8. Split pin, 5-9. Rubber gasket, 5-10. Chain;

[0029] 6. Second bridge deck hoist. DETAILED DESCRIPTION

[0030] The present invention is further described below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described are merely a portion of the present invention, not all of its embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0031] Reference Figures 1 to 6 , this embodiment provides a universal hoist for flat steel-concrete composite beams, including a first steel beam hoist 1 and a second steel beam hoist 2; a first connecting beam 3 and a second connecting beam 4 are respectively provided between the first steel beam hoist 1 and the second steel beam hoist 2 to solve the problem of stability control during the transportation of the flat steel-concrete composite beams; a first bridge deck hoist 5 and a second bridge deck hoist 6 are respectively provided at the bottom of the first connecting beam 3 and the second connecting beam 4, and the first bridge deck hoist 5 and the second bridge deck hoist 6 work together to realize the lifting of the bridge deck; the first bridge deck hoist 5 includes an upper carrying beam 5-1 and a lower carrying beam 5-2, and the upper carrying beam 5-1 has a group, and the lower carrying beam 5-2 has a group. There are two groups of beams 5-2. The upper supporting beam 5-1 is connected to the two groups of lower supporting beams 5-2 through the first hanger 5-3 and the second hanger 5-4 to form two groups of lifting structures. The lower ends of the first hangers 5-3 on both sides of the lifting structure are connected to the upper ends of the second hangers 5-4 through the pin sleeve 5-5, the first pin shaft 5-6 and the cotter pin 5-8. The upper end of the first hanger 5-3 is connected to the upper supporting beam 5-1 through the second pin shaft 5-7 and the cotter pin 5-8. The lower end of the second hanger 5-4 is connected to the lower supporting beam 5-2 through the second pin shaft 5-7 and the cotter pin 5-8. The structure of the second bridge panel hoist 6 is the same as that of the first bridge panel hoist 5.

[0032] In this embodiment, the first steel beam hanger 1 includes a hanging beam 1-1, a hanging ear 1-2 is provided in the middle of the hanging beam 1-1 for connecting with a cable hanger, and rollers 1-3 are provided at both ends of the hanging beam 1-1 for connecting with the steel beam. The structure of the second steel beam hanger 2 is the same as that of the first steel beam hanger 1, and both belong to the existing technology.

[0033] In this embodiment, the first connecting beam 3 is welded by an upper wing plate, two webs arranged vertically at intervals in the middle, and a bottom wing plate, and the structure of the second connecting beam 4 is the same as that of the first connecting beam 3; the first connecting beam 3 and the second connecting beam 4 are arranged in parallel; the two ends of the first connecting beam 3 and the second connecting beam 4 are bolted to the first steel beam hanger 1 and the second steel beam hanger 2 respectively, wherein the first steel beam hanger 1 is provided with a bolt hole on the hanging beam for connecting with the first connecting beam 3 and the second connecting beam 4, and the second steel beam hanger 2 is provided with a bolt hole on the hanging beam for connecting with the first connecting beam 3 and the second connecting beam 4. The first connecting beam 3 and the second connecting beam 4 are provided with bolt holes at both ends, respectively, which can be disassembled and assembled through bolt connection, which is convenient for transportation. At the same time, the entire hanger can be flexibly adjusted according to the shape and size of the main beam.

[0034] In this embodiment, two groups of I-beams arranged in a cross shape and I-beams arranged transversely are welded between the first connecting beam 3 and the second connecting beam 4 to enhance the stability of the overall sling.

[0035] In this embodiment, connecting ears are respectively provided at both ends of the top of the first bridge deck hanger 5 and the second bridge deck hanger 6, and connecting ears are correspondingly provided at the bottom of the first connecting beam 3 and the second connecting beam 4, and the two are connected by a pin shaft.

[0036] In this embodiment, the upper shoulder beam 5-1 is welded together by an upper wing plate, two webs spaced vertically in the middle, and a bottom wing plate. Reinforcement plates are provided between the upper wing plate and the two connecting ears, and the bottom wing plate is correspondingly provided with a reinforcement plate. The lower shoulder beam 5-2 is welded together by an upper wing plate, two webs spaced vertically in the middle, and a bottom wing plate. The lower shoulder beam 5-2 is provided with a rubber gasket 5-9 to reduce damage to the bridge deck during construction. The second hanging plate 5-4 is provided with a chain 5-10. When lifting the steel beam, the lower shoulder beam 5-2 is removed, and the first hanging plate 5-3 and the second hanging plate 5-4 are gathered and tied to the upper shoulder beam 5-1 using the chain 5-10 and wire, without removing the first hanging plate 5-3 and the second hanging plate 5-4. The lifting structure is provided with two groups, which can lift two groups of bridge decks at the same time, thereby improving construction efficiency.

[0037] The specific implementation process of this embodiment is as follows:

[0038] Before lifting, connect the first steel beam hanger 1 and the second steel beam hanger 2 to the cable hanger through the lifting lugs 1-2 respectively, remove the lower beams 5-2 of the first bridge deck hanger 5 and the second bridge deck hanger 6 and place them in a suitable lifting position, and stack the bridge deck on the lower beams 5-2 of the first bridge deck hanger 5 and the second bridge deck hanger 6;

[0039] When hoisting the bridge deck, the second hanging plates 5-4 of the first bridge deck hoist 5 and the second bridge deck hoist 6 are connected to the lower beam 5-2 through the second pin shaft 5-7 and the cotter pin 5-8, and then the bridge deck is hoisted. On this basis, the bridge deck is laid on the steel beam;

[0040] When lifting the steel beam, first retract the first bridge deck hoist 5 and the second bridge deck hoist 6, then connect the roller 1-3 steel wires of the first steel beam hoist 1 and the second steel beam hoist 2 to the lifting part of the steel beam, and then implement the lifting of the steel beam. Since the first steel beam hoist 1 and the second steel beam hoist 2 are provided with the first connecting beam 3 and the second connecting beam 4, the problem of instability risk in the lifting process of the existing cable hoist can be effectively solved.

[0041] Although the embodiments of the present invention have been shown and described above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal sling for a flat steel-concrete composite beam, comprising a first steel beam sling and a second steel beam sling, characterized in that: A first connecting beam and a second connecting beam are respectively provided between the first steel beam hanger and the second steel beam hanger, and a first bridge deck hanger and a second bridge deck hanger are respectively provided at the bottom of the first connecting beam and the second connecting beam; the first bridge deck hanger includes an upper carrying beam and a lower carrying beam, there is one group of upper carrying beams, and there are two groups of lower carrying beams, the upper carrying beams are connected to the two groups of lower carrying beams through the first hanging plate and the second hanging plate to form two groups of lifting structures, the lower ends of the first hanging plates on both sides of the lifting structure are connected to the upper end of the second hanging plate through the pin sleeve, the first pin shaft and the cotter pin, the upper end of the first hanging plate is connected to the upper carrying beam through the second pin shaft and the cotter pin, the lower end of the second hanging plate is connected to the lower carrying beam through the second pin shaft and the cotter pin, and the structure of the second bridge deck hanger is the same as that of the first bridge deck hanger.

2. The universal lifting device for flat steel-concrete composite beams according to claim 1, characterized in that: The first steel beam hanger includes a hanger beam, a lifting lug is provided in the middle of the hanger beam, and rollers are provided at both ends of the hanger beam. The structure of the second steel beam hanger is the same as that of the first steel beam hanger.

3. A universal lifting device for flat steel-concrete composite beams according to claim 1 or 2, characterized in that: The first connecting beam is welded by an upper wing plate, two webs arranged vertically at intervals in the middle, and a bottom wing plate. The structure of the second connecting beam is the same as that of the first connecting beam. The first connecting beam and the second connecting beam are arranged in parallel, and the two ends of the first connecting beam and the second connecting beam are bolted to the first steel beam hanger and the second steel beam hanger respectively.

4. The universal lifting device for flat steel-concrete composite beams according to claim 3, characterized in that: Two groups of I-beams arranged in a cross shape and I-beams arranged transversely are welded between the first connecting beam and the second connecting beam.

5. A universal lifting device for flat steel-concrete composite beams according to claim 1 or 2, characterized in that: The top ends of the first bridge deck hanger and the second bridge deck hanger are respectively provided with connecting ears, and the bottoms of the first connecting beam and the second connecting beam are correspondingly provided with connecting ears, and the two are connected by a pin shaft.

6. The universal lifting device for flat steel-concrete composite beams according to claim 5, characterized in that: The upper carrying beam is welded by the upper wing plate, two webs arranged vertically at intervals in the middle, and the bottom wing plate. Reinforcement plates are respectively provided between the upper wing plate and the two connecting ears, and the bottom wing plate is correspondingly provided with a reinforcement plate; the lower carrying beam is welded by the upper wing plate, two webs arranged vertically at intervals in the middle, and the bottom wing plate.

7. A universal hanger for flat steel-concrete composite beams according to claim 1 or 2, characterized in that: A rubber gasket is provided on the lower carrying beam.

8. A universal lifting device for flat steel-concrete composite beams according to claim 1 or 2, characterized in that: The second hanging plate is provided with a chain.

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