CN201411926Y

CN201411926Y - Arc beam hoisting structure

Info

Publication number: CN201411926Y
Application number: CN2009203042142U
Authority: CN
Inventors: 胡伟山; 曾祥勇
Original assignee: MCC Shijiu Construction Co Ltd
Current assignee: China 19th Metallurgical Corp
Priority date: 2009-06-10
Filing date: 2009-06-10
Publication date: 2010-02-24
Anticipated expiration: 2019-06-10

Abstract

The utility model discloses an arc beam hoisting structure which is used for dismounting and mounting the large-scale crane in the old workshop. The hoisting structure is locate in the workshop. The workshop includes multiple pairs of workshop roof trusses which are arranged at intervals and supported by the workshop upright column, wherein at least a pair of workshop upright columns are mounted with the arc beam in a mode of simple strut-beams; and the arc beam is provided with a hanger. Compared with the hoisting device of a tower crane, the hoisting structure formed by the arc beam or its combined structure adapts to local conditions, saves the cost and operation time, has high safety and small operation area. The process of constructing the arc beam hoisting structure does not influence the normal production in other areas, therefore, the arc beam hoisting structure has strong practicability and pertinence and is especially suitable as the hoisting structure for dismounting and mounting the large-scale hoisting device in the old workshop.

Description

Arc beam lifting structure

Technical field

The utility model relates to a kind of lifting structure that large-scale crane in the old factory building is carried out dismounting, especially a kind of arc beam lifting structure.

Background technology

At present, domestic when in new factory building, the large-scale bridge type crane gear being installed, mainly be to utilize large-tonnage mobile job crane tool or tower crane lifting to put in place.Large-scale bridge type crane gear in the old factory building is dismantled, when installing, also mainly considered to utilize large-tonnage mobile job crane tool or tower crane lifting to put in place.But, when effects limit such as place, produced on-site situations mobile job crane tool or tower crane march into the arena or when using, directly lift with regard to unrenewable mobile job crane tool or tower crane, at this moment, can only realize dismounting and installation with other lifting structure to large-scale bridge type crane gear in the old factory building.Common in this case lifting structure is exactly: the house roof truss that utilizes old factory building is as spandrel girder, and equipped suitable suspender carries out lifting operation.Yet, for large-tonnage overhead traveling crane equipment, its deadweight is bigger, generally reach 30～40 tons even bigger, this moment, above-mentioned structure just seemed powerless, at this moment, generally be selected near the mode that heavy tower crane is set the factory building, but this kind mode engineering time is long, the construction cost height, and can interfere ordinary production operation in the factory building.

The utility model content

For overcome existing lifting structure can not the compliance factory building in the deficiency of large-scale crane dismounting, technical problem to be solved in the utility model provides a kind of arc beam lifting structure that can be used in large-scale crane dismounting in the old factory building.

The technical scheme that its technical problem that solves the utility model adopts is: arc beam lifting structure, described lifting structure is positioned at factory building, factory building comprises by many factory building roof trusses to the factory building upright supports that is provided with along factory building longitudinal separation, wherein with the simply supported beam form arc beam is installed at least one pair of factory building column, the arc beam is provided with suspender.

The beneficial effects of the utility model are: form lifting structure with arc beam or its combining structure, with tower crane be set compare as crane gear, suit measures to local conditions, it is good to provide cost savings with activity duration, safety, simultaneously, the operation area is little, does not influence the ordinary production operation in other each district in the factory building in constructing arc beam lifting structure process of the present utility model, have very strong practicality and specific aim, be particularly suitable for dismounting, installation lifting structure as large-scale lifting appliance in the old factory building.

Description of drawings

Fig. 1 is a schematic diagram of the present utility model.

Be labeled as among the figure, factory building roof truss 1, factory building column 2, arc beam 3, auxilliary beam 4, lifting longeron 5, suspender 6, large-scale crane 7, intercolumniation support 8, factory building are reinforced column 9.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As shown in Figure 1, arc beam lifting structure of the present utility model, described lifting structure is positioned at factory building, factory building comprises the factory building roof truss 1 that the factory building column 2 that is provided with along factory building longitudinal separation is supported by many, wherein with the simply supported beam form arc beam 3 is installed at least one pair of factory building column 2, arc beam 3 is provided with suspender 6.Each is meant at the same laterally two relative factory building columns 2 of factory building of striding factory building column 2.

Utilize the arc beam of making separately as the lifting spandrel girder, utilize factory building roof truss 1 as the lifting spandrel girder, its supporting power increases greatly, the lifting capacity that allows is big, simultaneously, adopt arc beam form can obtain higher sling height, thereby arc beam lifting structure of the present utility model can be used for the dismounting or the installation of large-scale lifting appliance in the factory building, its lifting capacity is all bigger when generally needing to use this structure, and therefore described arc beam is generally selected the structural shape of box-girder.In case of necessity, if lifting capacity is very big, also the factory building column of reply support arc beam is reinforced, to guarantee safety.

When the bigger lifting capacity of needs, during higher lifting height, can further select to have the lifting structure of two arc beams 3, the adjacent two pairs of factory building columns 2 of this appropriate to the occasion selection support two arc beams 3, a pair of auxilliary beam 4 is set on two arc beams 3, to assisting the lifting longeron 5 that suspender 6 is installed is set on the beam 4 at this, promptly adopt the multi-layer combined type lifting structure that comprises arc beam 3, at this moment, it is unfavorable for load and the auxilliary beam material of waste if select 2 on non-conterminous two pairs of factory building columns, system becomes bad scheme, and described suspender 6 is complementary with the weight of equipment to be lifted, and considers certain safety factor.

At this moment, can also reinforce column 9, reinforce column 9 by factory building column 2 and factory building and come together support arc beam 3, to guarantee safety at the described every factory building column 2 adjacent factory buildings that are provided with.

In the said structure, in described two pairs of factory building columns 2, the intercolumniation that can be provided with truss-like along factory building longitudinally between two factory building columns 2 in case of necessity supports 8, to reinforce whole lifting structure, ensures safety.

In the said structure, described lifting longeron 5 should be arranged on the midpoint of auxilliary beam 4, and is stressed more even.

In the said structure, described arc beam 3 is considered the stressed less of factory building roof truss if deadweight is bigger, can adopt the method that assembly unit is shaped behind the sectional making to make arc beam 3.

For this reason, can be erected with arc beam assembly platform on described factory building roof truss 1, the handled easily personnel are spliced each section arc beam, and described assembly platform can adopt checkered plates or plank, bamboo clappers etc. to build, and assembly platform should be provided with the security protection facility.

For this reason, arc beam lifting structure can be set on described factory building roof truss 1, arc beam lifting structure can adopt hoisting machine to cooperate realization liftings such as assembly pulley, is used for assembly unit arc beam 3.

Embodiment:

Weigh in the old factory building to certain large enterprise and use arc beam lifting structure of the present utility model when 46 tons large-scale crane is dismantled with installation exercise.Its key operation process comprises: treat that the crane gear relevant parameter is (long, wide, sling height, weight etc.) appraise and decide → job site mapping (determine select for use factory building column) → the on-site hoisting ability appraises and decides → makeshift device design → construction suspender prepares → in case of necessity the factory building roof truss reinforce → be provided with factory building column suspension centre → be provided with in case of necessity factory building and reinforce column → be provided with the in case of necessity intercolumniation between adjacent two pairs of factory building columns and support → arc beam lifting structure → setting up arc beam assembly platform → arc beam sectional making on the factory building roof truss and lifting are being set on the factory building roof truss put in place → assembly unit of each section arc beam connects → building auxilliary beam assembly platform → the be provided with auxilliary beam of auxilliary beam suspension centre → lifting and is being connected → lifts to lift by crane longeron and be connected with auxilliary beam → lifting by crane with the arc beam and be provided with on the longeron that hoisting sling → lifting need be dismantled or the large-scale crane of installation on the arc beam.

To those skilled in the art, as long as above-mentioned structure has been arranged, the structure design of arc beam, auxilliary beam, lifting longeron, hoisting sling selection and lifting safety checking computations all are conventional.

Claims

1. arc beam lifting structure, it is characterized in that: described lifting structure is positioned at factory building, factory building comprises the factory building roof truss (1) that the factory building column (2) that is provided with along factory building longitudinal separation is supported by many, wherein at least one pair of factory building column (2) is gone up and with the simply supported beam form arc beam (3) is installed, and arc beam (3) is provided with suspender (6).

2. arc beam lifting structure as claimed in claim 1, it is characterized in that: described factory building column (2) comprises adjacent two couple, two arc beams (3) are separately positioned on these two pairs of factory building columns (2), two arc beams (3) are provided with a pair of auxilliary beam (4), this is provided with lifting longeron (5) to auxilliary beam (4), on lifting longeron (5) suspender (6) is installed.

3. arc beam lifting structure as claimed in claim 2 is characterized in that: the adjacent factory building that is provided with of described every factory building column (2) is reinforced column (9), and factory building column (2) and factory building are reinforced column (9) together support arc beam (3).

4. as claim 2 or 3 described arc beam lifting structures, it is characterized in that: in described two pairs of factory building columns (2), the intercolumniation that respectively is provided with truss-like along factory building longitudinally between two factory building columns (2) supports (8).

5. as claim 2 or 3 described arc beam lifting structures, it is characterized in that: described lifting longeron (5) is arranged on the midpoint of auxilliary beam (4).

6. as claim 1,2 or 3 described arc beam lifting structures, it is characterized in that: assembly unit is shaped behind described arc beam (3) sectional making.

7. arc beam lifting structure as claimed in claim 5 is characterized in that: be erected with arc beam assembly platform on the described factory building roof truss (1).