CN213059838U

CN213059838U - Large-span girder steel hoist

Info

Publication number: CN213059838U
Application number: CN202021698631.2U
Authority: CN
Inventors: 李勇; 杨文明; 祁亚; 武安峰; 康雄辉; 罗航; 张晶; 胡海波; 杜增伟; 刘宇飞; 孙强; 郎丰硕; 顾明辉; 陈章; 马小飞
Original assignee: China Railway Major Bridge Engineering Group Co Ltd MBEC; 1st Engineering Co Ltd of MBEC
Current assignee: China Railway Major Bridge Engineering Group Co Ltd MBEC; 1st Engineering Co Ltd of MBEC
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-04-27
Anticipated expiration: 2030-08-14

Abstract

The application relates to a large-span girder steel hoist relates to large structure hoist and mount field. This large-span girder steel hoist includes support body and coupling assembling, the support body includes crossbeam and longeron, the crossbeam is used for being connected fixedly with the large-span girder steel, coupling assembling includes four connecting pieces, wherein, each the connecting piece all includes connecting box, first engaging lug and second engaging lug, and the connecting box is hollow structure, one side of connecting box with the longeron links to each other, and first engaging lug is located the bottom of connecting box, first engaging lug with the crossbeam rotates to be connected, and the second engaging lug is located the top of connecting box, be connected with the lifting rope on the second engaging lug. The application provides a large-span girder steel hoist can solve among the correlation technique hoist structure when the atress is inhomogeneous and take place deformation or impaired problem easily.

Description

Large-span girder steel hoist

Technical Field

The application relates to the field of hoisting of large-scale structures, in particular to a large-span steel beam lifting appliance.

Background

At present, along with the gradual improvement of highway traffic construction in China, more and more bridges in sections difficult to construct are encountered in the construction process, if rivers, beaches, swamps and the like need to be crossed, and different from the traditional viaducts, when the viaducts are constructed in places, the investment of pier foundation construction is often large due to terrain reasons, so that the large-span bridge design is often selected to reduce the investment of construction due to complex construction conditions.

Compared with the bridges with medium and small spans, the large-span bridge has different stress, design load, manufacturing cost and the like, the large-span bridge has unique local structure and large integral volume, the size of the bridge is usually 2-5 times that of the medium and small spans, the calculation stages are multiple, the structure is complex, and therefore the required steel beam has large structural size and weight, multiple sections and lengths and various types, and high difficulty in hoisting. In order to ensure that the girder is evenly stressed and not damaged, the girder is stable during hoisting and is safe to hoist, a special hoisting tool is required to be adopted for hoisting.

Among the correlation technique, compare ordinary hoist, it is general bulky to the hoist of large-span girder steel specially, and the hoisting point is more, will guarantee to have sufficient structural strength to smoothly lift by crane the large-span girder steel. However, because the large-span steel beam is large in size and heavy in weight, the steel beam can shake midway during lifting, the lifting appliance can be subjected to large shearing force from all directions in the lifting process, the heavier the steel beam is, the larger the force correspondingly applied by the lifting appliance can be, so that the structure is easy to damage, particularly the joints, or the lifting appliance is deformed, potential safety hazards are generated, the service life of the lifting appliance is greatly reduced, and secondly, the structural stability and the safety of the lifting appliance can be threatened if the lifting appliance is heavy in weight; in addition, the size difference of the steel beams at different parts of the bridge is large, and the same lifting appliance cannot meet the lifting requirements of the steel beams with different lengths.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a large-span girder steel hoist to solve among the prior art hoist and the easy deformation of taking place of structure or impaired problem when the atress is inhomogeneous.

In a first aspect, a large span steel beam hanger is provided, comprising:

the frame body comprises a cross beam and a longitudinal beam, and the cross beam is used for being connected and fixed with the large-span steel beam;

and the connecting assembly comprises four connecting pieces, and each connecting piece is arranged at the joint of one of the cross beam and the corresponding longitudinal beam and is used for rotatably connecting the cross beam and the longitudinal beam.

In some embodiments, the connector comprises:

the connecting box is of a hollow structure, and one side of the connecting box is connected with the longitudinal beam;

the first connecting lug is arranged at the bottom of the connecting box and is rotatably connected with the cross beam;

and the second connecting lug is arranged at the top of the connecting box, and a lifting rope is connected onto the second connecting lug.

In some embodiments, the outer side surface of the connecting box is provided with a plurality of transverse reinforcing ribs and longitudinal reinforcing ribs, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are staggered with each other.

In some embodiments, the stringer comprises a plurality of connected, spliced stringers having different length dimensions.

In some embodiments, the length dimension of the spliced beam ranges from 8.6 m to 15.2 m.

In some embodiments, the adjacent splicing beams and the connecting box are connected and fixed through high-strength bolts.

In some embodiments, the cross beam comprises a beam body and two hanging joints respectively arranged at two ends of the beam body, and the top of each hanging joint is rotatably connected with the corresponding first connecting lug.

In some embodiments, the bottom of the hanging joint is rotatably connected with a hanging plate, and the hanging plate is used for being connected and fixed with the large-span steel beam.

In some embodiments, the hanging joint is connected with the hanging plate and the first connecting lug through pin shafts.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a large-span girder steel hoist, it includes crossbeam, longeron and four connecting pieces, and wherein, the crossbeam mainly used is connected fixedly with the large-span girder steel, and the junction of one of them crossbeam and corresponding longeron is all located to each connecting piece for rotate this crossbeam and longeron to be connected. Because the crossbeam rotates with the longeron to be connected, consequently, can guarantee when lifting by crane the large-span girder steel, make the hoist correspond the node three-dimensional atress, avoid the structure to receive the shearing force to guarantee that the large-span girder steel hoist is not damaged or takes place deformation, thereby avoid the problem that the girder steel atress is inhomogeneous when lifting by crane takes place the deformation, improve the hoist and mount safety of large-span girder steel.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a front view of a large-span steel beam spreader according to an embodiment of the present disclosure;

figure 2 is a side view of a large-span steel beam spreader that the embodiment of this application provides.

In the figure: 10-beam, 100-beam body, 11-longitudinal beam, 12-hanging joint, 20-connecting piece, 200-connecting box, 201-first connecting lug, 202-second connecting lug, 3-lifting rope and 4-lifting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a large-span girder steel hoist, it can solve among the prior art hoist and the easy deformation of taking place of structure or impaired problem when the atress is inhomogeneous.

Referring to fig. 1-2, the large-span steel beam hanger comprises a hanger body and a connecting assembly, wherein the hanger body specifically comprises a cross beam 10 and a longitudinal beam 11, the cross beam 10 is mainly used for being connected and fixed with the large-span steel beam, the connecting assembly specifically comprises four connecting pieces 20, and each connecting piece 20 is arranged at the joint of one cross beam 10 and the corresponding longitudinal beam 11 and is used for rotatably connecting the cross beam 10 and the longitudinal beam 11.

Specifically, connecting piece 20 includes connecting box 200, first engaging lug 201 and second engaging lug 202, wherein, connecting box 200 is hollow structure, one side of connecting box 200 links to each other with longeron 11, the bottom of connecting box 200 is located to first engaging lug 201, first engaging lug 201 rotates with crossbeam 10 and is connected second engaging lug 202 and locate the top of connecting box 200, be connected with lifting rope 3 on the second engaging lug 202, be connected with the main lifting hook of floating crane and hoisting apparatus isotructure on the lifting rope 3.

The girder steel can inevitably take place to rock at the in-process of lifting by crane, and because the size of large-span girder steel is great, weight is heavier, consequently, at the in-process of lifting by crane, in case the large-span girder steel takes place to rock, the junction of crossbeam 10 and longeron 11 will receive great shearing force, because the junction often structural strength ratio is lower again, consequently take place to damage very easily or lead to taking place deformation scheduling problem, thereby lead to the large-span girder steel to take place deformation at the in-process of lifting by crane, influence subsequent construction quality and progress, still influenced the quality of bridge to a certain extent. Consequently, set up connecting piece 20 between crossbeam 10 and longeron 11 for crossbeam 10 rotates with longeron 11 to be connected, when lifting by crane the large-span girder steel, makes the corresponding node three-dimensional atress of hoist, avoids the structure to receive the shearing force to destroy, does not damaged or takes place deformation with the assurance large-span girder steel hoist, thereby avoids the problem that the girder steel atress is inhomogeneous to take place to warp when lifting by crane, improves the hoist and mount safety of large-span girder steel, guarantees the quality of bridge.

Further, because the connecting box 200 is located between the cross beam 10 and the longitudinal beam 11, the connecting box mainly plays a role of stress connection, and therefore, in order to ensure the stability of the structure, a plurality of transverse reinforcing ribs and longitudinal reinforcing ribs are further arranged on the outer side surface of the connecting box 200, the transverse reinforcing ribs and the longitudinal reinforcing ribs are mutually staggered to form a grid shape, and the structural strength of the connecting box 200 is further enhanced. The connecting box 200 is small in structural size, the weight of the lifting appliance can be effectively reduced, materials are saved, and the lifting weight is reduced.

Further, in the process of hoisting a large-span steel beam, the types of the steel beams of the bridge are various, the lifting appliance can be adapted to the steel beams with different lengths, and the safety of the hoisting process is ensured, so that the longitudinal beam 11 comprises a plurality of spliced beams which are connected and have different length sizes, before hoisting, the spliced beams with corresponding sizes and number are selected to be spliced according to the length of the steel beams to be hoisted as required, so that the longitudinal beam 11 which is matched with the steel beams to be hoisted is assembled, and the smooth proceeding of the hoisting process is ensured. The length size range of the spliced beam is 8.6-15.2 m.

Further, it is fixed through high strength bolted connection between the adjacent concatenation roof beam, in addition, also all fix through high strength bolted connection between concatenation roof beam and the connecting box 200, bolted structure connects conveniently, and stability is strong, and easily operation, required time when can effectually sparingly changing.

Further, the beam 10 specifically includes a beam body 100 and two hanging connectors 12 respectively disposed at two ends of the beam body 100, the top of each hanging connector 12 is rotatably connected to the first connecting lug 201, and one side of each hanging connector 12 is fixedly connected to the beam body 100 through a high-strength bolt.

Furthermore, the bottom of the hanging joint 12 is rotatably connected with a hanging plate 4, and the hanging plate 4 is used for being connected and fixed with the large-span steel beam. Here hanger plate 4 and hanging joint 12 are connected with rotating, also can weaken the shearing force that produces when taking place to rock in the long-span girder steel lifting process to a certain extent.

Furthermore, the hanging joint 12 is connected with the hanging plate 4 and the first connecting lug 201 through pin shafts.

When the large-span steel beam lifting appliance is used, firstly, all components of the large-span lifting appliance are respectively processed in a factory, the components are transported to a construction site for assembly after being processed, different spliced beams are selected for assembly and adjustment according to large-span steel beams with different length segments, the installation safety and effectiveness of pin shafts, bolts and the like are guaranteed during installation, and finally, the large-span steel beam lifting appliance can be lifted.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a large-span girder steel hoist which characterized in that, it includes:

the frame body comprises a cross beam (10) and a longitudinal beam (11), wherein the cross beam (10) is used for being connected and fixed with the large-span steel beam;

the connecting assembly comprises four connecting pieces (20), wherein each connecting piece (20) is arranged at the joint of one transverse beam (10) and the corresponding longitudinal beam (11) and is used for rotatably connecting the transverse beam (10) and the longitudinal beam (11).

2. A large span steel girder spreader according to claim 1, wherein the connection member (20) comprises:

the connecting box (200) is of a hollow structure, and one side of the connecting box (200) is connected with the longitudinal beam (11);

the first connecting lug (201) is arranged at the bottom of the connecting box (200), and the first connecting lug (201) is rotatably connected with the cross beam (10);

the second connecting lug (202) is arranged at the top of the connecting box (200), and a lifting rope (3) is connected to the second connecting lug (202).

3. A large span steel girder spreader according to claim 2, wherein: the outer side surface of the connecting box (200) is provided with a plurality of transverse reinforcing ribs and longitudinal reinforcing ribs, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are staggered with each other.

4. A large span steel girder spreader according to claim 2, wherein: the longitudinal beam (11) comprises a plurality of connected spliced beams with different length sizes.

5. The large span steel girder spreader of claim 4, wherein: the length size range of the spliced beam is 8.6-15.2 m.

6. The large span steel girder spreader of claim 4, wherein: the adjacent splicing beams and the connecting box (200) are fixedly connected through high-strength bolts.

7. A large span steel girder spreader according to claim 2, wherein: the beam (10) comprises a beam body (100) and two hanging connectors (12) respectively arranged at two ends of the beam body (100), and the top of each hanging connector (12) is rotatably connected with the first connecting lug (201).

8. The large span steel girder spreader of claim 7, wherein: the bottom of hanging joint (12) is rotated and is connected with hanger plate (4), hanger plate (4) are used for being connected fixedly with the large-span girder steel.

9. The large span steel girder spreader of claim 8, wherein: the hanging joint (12) is connected with the hanging plate (4) and the first connecting lug (201) through pin shafts.