CN211895671U - Large-span arched pipe truss hoisting auxiliary device - Google Patents
Large-span arched pipe truss hoisting auxiliary device Download PDFInfo
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- CN211895671U CN211895671U CN202020484568.6U CN202020484568U CN211895671U CN 211895671 U CN211895671 U CN 211895671U CN 202020484568 U CN202020484568 U CN 202020484568U CN 211895671 U CN211895671 U CN 211895671U
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Abstract
The utility model discloses a large-span arched pipe truss hoisting auxiliary device, which comprises a seamless round steel pipe, wherein the seamless round steel pipe is horizontally arranged and is provided with a plurality of groups of lug plates, two lug plates of each group of lug plates are symmetrically arranged at the upper side and the lower side of the seamless round steel pipe, all the groups of lug plates are distributed along the longitudinal direction of the seamless round steel pipe, and each lug plate is provided with a lug hole; end lug plates are arranged at two ends of the seamless circular steel tube, the end lug plates are vertically arranged and correspond to the diameter of the seamless circular steel tube in the vertical direction, two round holes are arranged on the end lug plates, and the two round holes are arranged in an up-and-down symmetrical manner; the end lug plate is fixed on the seamless circular steel tube through a connecting plate, the connecting plate is vertically arranged, one side face of the connecting plate is welded and fixed on the end face of the seamless circular steel tube, and the other side face of the connecting plate is used for welding and fixing the end lug plate. The hoisting auxiliary device is simple in structure, can be assembled to adjust the length of the hoisting auxiliary device, and is suitable for fast hoisting of large-span arched pipe trusses with different spans.
Description
Technical Field
The utility model belongs to the technical field of the construction of building steel construction, concretely relates to large-span arched pipe truss hoist and mount auxiliary device.
Background
With the rapid development of economy in China, people have higher and higher pursuits for mental culture, and various exhibition centers, large-scale viewing platforms, movie theaters, gymnasiums and other large-scale public buildings are produced. The large-span pipe truss, which is one of the advanced building technology representatives, is widely applied to large public buildings because of the advantages of light dead weight, high strength, good overall performance, beautiful appearance and the like.
However, the construction technology of the pipe truss structure is complex, especially in the hoisting process, for a long-span arched pipe truss, the angle of the steel wire rope often cannot meet the requirement of hoisting a reasonable angle during integral hoisting, the steel wire rope is stressed unevenly during operation, and the member is easy to deform. Hoisting auxiliary devices similar to shoulder pole beams are often adopted in steel structure hoisting construction. The shoulder pole beams can play a role in uniformly distributing force and changing the angle of the steel wire rope, and the deformation of the component during hoisting is reduced. However, the length of a common carrying pole beam is fixed, only two fixed lifting lugs are arranged, and the length of the carrying pole beam and the distance between the lifting lugs cannot be adjusted according to needs, so that the common carrying pole beam is not suitable for hoisting large-span arched pipe trusses with different arched section spans.
Therefore, an assembled adjustable hoisting auxiliary device is provided to be suitable for fast hoisting of large-span arched pipe trusses with different spans, which is a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
The above-mentioned not enough to prior art exists, the utility model aims at providing a large-span arched pipe truss hoists auxiliary device, this hoist and mount auxiliary device simple structure, simple to operate, its length is adjusted to the assemblable, is applicable to the quick hoist and mount of large-span arched pipe truss of different spans.
A large-span arched pipe truss hoisting auxiliary device comprises a seamless circular steel pipe, wherein the seamless circular steel pipe is horizontally arranged, a plurality of groups of lug plates are arranged on the seamless circular steel pipe, two lug plates of each group of lug plates are symmetrically arranged on the upper side and the lower side of the seamless circular steel pipe, all the groups of lug plates are distributed along the longitudinal direction of the seamless circular steel pipe, and each lug plate is provided with a lug hole for arranging a steel wire rope to facilitate hoisting; end lug plates are arranged at two ends of the seamless round steel pipe, the end lug plates are vertically arranged and correspond to the diameter of the seamless round steel pipe in the vertical direction, two round holes are arranged on the end lug plates, and the two round holes are arranged in an up-and-down symmetrical manner; the end ear plate is fixed on the seamless circular steel tube through the connecting plate, the connecting plate is vertically arranged, one side face of the connecting plate is welded and fixed on the end face of the seamless circular steel tube, and the other side face of the connecting plate is used for welding and fixing the end ear plate.
Further, seamless circular steel tube comprises a plurality of sections, and two sections that are located the tip constitute the tip festival section, are located the constitution regulation festival section at middle part, and regulation festival section both ends all are equipped with the ring flange, and it is fixed to pass the bolt hole that corresponds on the ring flange through the bolt between the adjacent regulation festival section, and the tip festival section is equipped with the ring flange with the one end that the regulation festival section corresponds, and it is fixed that regulation festival section and tip festival section pass the bolt hole that corresponds on the ring flange through the bolt.
Furthermore, a plurality of stiffening plates are arranged at the joints of the end sections, the adjusting sections and the flange plate, the stiffening plates are arranged along the circumference of the flange plate, and each stiffening plate is welded and fixed with the flange plate and the seamless round steel pipe respectively and used for improving the rigidity of the device.
Further, the adjusting section has a plurality of adjusting sections, and the lengths of all the adjusting sections are the same or different.
Furthermore, a first stiffening rib is horizontally arranged between the two round holes on the two side faces of the end ear plate, a second stiffening rib is horizontally arranged on the end ear plate of the round hole above the first stiffening rib, the corresponding ends of the first stiffening rib and the connecting plate and the corresponding ends of the second stiffening rib are respectively welded and fixed with the connecting plate, and the length of the second stiffening rib is smaller than that of the first stiffening rib.
Furthermore, the area of the connecting plate is larger than the area of the end face of the seamless circular steel tube, so that the welding area of the connecting plate, the end lug plate and the seamless circular steel tube is increased conveniently.
Furthermore, the lower end of the connecting plate is away from the seamless circular steel tube by a length, a supporting and connecting plate is arranged between the lower portion of the connecting plate and the seamless circular steel tube conveniently, and the supporting and connecting plate is welded and fixed with the connecting plate and the seamless circular steel tube respectively.
Furthermore, one end of each lifting lug plate, which is far away from the seamless circular steel tube, is semicircular, so that abrasion to the steel wire rope is reduced conveniently.
Furthermore, the lower end of the end lug plate is arc-shaped, so that abrasion to the steel wire rope is reduced conveniently.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses simple structure, simple to operate can assemble into the adjustable hoist and mount auxiliary device of assembled of different length as required fast, are applicable to the different large-span arch pipe truss of each arch segment section span and hoist smoothly, and in addition, this hoist and mount auxiliary device repeatedly usable, economic benefits is good.
Drawings
Fig. 1-the structure of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a sectional view taken along line B-B of fig. 1.
Figure 4-the utility model discloses hoist and mount middle part owner truss's structural schematic.
Wherein: 1-seamless round steel pipe; 1 a-an end segment; 1 b-a regulatory segment; 2-lifting lug plates; 3-end ear plate; 4-connecting plates; 5-a flange plate; 6-a stiffening plate; 7-a first stiffener; 8-a second stiffener; 9-supporting the connecting plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-4, the large-span arched pipe truss hoisting auxiliary device comprises a seamless circular steel pipe 1, wherein the seamless circular steel pipe 1 is horizontally arranged, a plurality of groups of lug plates 2 are arranged on the seamless circular steel pipe 1, two lug plates of each group of lug plates 2 are symmetrically arranged on the upper side and the lower side of the seamless circular steel pipe 1, all the groups of lug plates 2 are distributed along the longitudinal direction of the seamless circular steel pipe 1, and each lug plate 2 is provided with a lug hole for arranging a steel wire rope to facilitate hoisting; end lug plates 3 are arranged at two ends of the seamless circular steel tube 1, the end lug plates 3 are vertically arranged and correspond to the diameter of the seamless circular steel tube 1 in the vertical direction, and two round holes are formed in the end lug plates 3 and are arranged in an up-and-down symmetrical mode; the end ear plate 3 is fixed on the seamless circular steel tube 1 through the connecting plate 4, the connecting plate 4 is vertically arranged, one side surface of the connecting plate is welded and fixed on the end surface of the seamless circular steel tube 1, and the other side surface of the connecting plate is used for welding and fixing the end ear plate 3.
During specific implementation, seamless circular steel tube 1 comprises a plurality of sections, and two sections that are located the tip constitute tip subsection 1a, are located the constitution regulation subsection 1b at middle part, and regulation subsection 1b both ends all are equipped with ring flange 5, and it is fixed to pass the bolt hole that corresponds on ring flange 5 through the bolt between the adjacent regulation subsection 1b, and the one end that tip subsection 1a and regulation subsection ab correspond is equipped with ring flange 5, and regulation subsection 1b and tip subsection 1a pass the bolt hole that corresponds on ring flange 5 through the bolt and fix.
Like this, in the use, can select to adjust the festival section and two tip sections according to the length of large-span arched pipe truss and assemble into the hoist and mount auxiliary device of suitable length, adopt the ring flange to connect between each section, the ring flange adopts =25 mm's steel sheet to make, and the hole site is accurate on the ring flange, can assemble into a whole through high strength bolt connection according to the device length of needs at the scene fast to it is adjustable to realize hoist and mount auxiliary device's length.
During specific implementation, a plurality of stiffening plates 6 are arranged at the joints of the end sections 1a, the adjusting sections 1b and the flange 5, the stiffening plates 6 are arranged along the circumference of the flange 5, and each stiffening plate 6 is welded and fixed with the flange 5 and the seamless round steel pipe respectively and used for improving the rigidity of the device.
Here, adopt 8 on the ring flange =12mm trapezoidal stiffening plate to carry out the hoop stiffening, the stiffening plate is evenly arranged with the high strength bolt of being connected at interval to improve the holistic rigidity of hoist and mount auxiliary device, the unstability phenomenon during can effectively solving hoist and mount, ensured the safety of lifting by crane.
In a specific implementation, the adjusting sections 1b are provided with a plurality of adjusting sections, and the lengths of all the adjusting sections 1b are the same or different.
Set up the regulation festival section like this, can assemble into the hoist and mount auxiliary device of multiple specification, can set up one of them length of adjusting the festival section longer according to the experience that engineering was used simultaneously to satisfy the installation of the arched pipe truss of multiple specification, other more arch pipe trusses of length can through increasing shorter regulation festival section and assemble hoist and mount auxiliary device.
During specific implementation, a first stiffening rib 7 is horizontally arranged between two round holes on two side faces of the end ear plate 3, a second stiffening rib 8 is horizontally arranged on the end ear plate of the round hole above, the first stiffening rib 7, the second stiffening rib 8 and the corresponding end of the connecting plate 4 are respectively welded and fixed with the connecting plate 4, and the length of the second stiffening rib 8 is smaller than that of the first stiffening rib 7.
Tip otic placode and connecting plate generally adopt =25 mm's steel sheet to make, set up the stiffening rib like this after, carry out local enhancement around the tip otic placode round hole, are favorable to improving the stress intensity of tip otic placode to improve the life of tip otic placode.
When the seamless circular steel tube welding device is specifically implemented, the area of the connecting plate 4 is larger than the area of the end face of the seamless circular steel tube 1, so that the welding area of the connecting plate 4, the end lug plate 3 and the seamless circular steel tube 1 can be increased conveniently.
During concrete implementation, 4 lower extremes of connecting plate are apart from 1 length of seamless circular steel tube, are convenient for be equipped with the supporting connection board 9 between 4 lower parts of connecting plate and seamless circular steel tube 1, supporting connection board 9 respectively with connecting plate 4 and 1 welded fastening of seamless circular steel tube.
During specific implementation, one end of each lifting lug plate 2, which is far away from the seamless circular steel tube 1, is semicircular, so that abrasion to the steel wire rope is reduced conveniently.
When the steel wire rope clamping device is specifically implemented, the lower end of the end lug plate 3 is arc-shaped, so that abrasion to the steel wire rope is reduced conveniently.
Therefore, the lower end of the end lug plate is in arc transition, so that the local stress concentration can be reduced, and the abrasion of sharp edges and corners to the steel wire rope can be prevented.
The large-span arch-shaped pipe truss hoisting auxiliary device is adopted to install the large-span arch-shaped pipe truss, and the method specifically comprises the following steps:
(1) building a BIM structural model of an arch-shaped steel truss by using steel structure software, dividing the arch-shaped pipe truss into three sections of main trusses, wherein the two sections of main trusses positioned at two ends form two end part main trusses, the section of main truss positioned in the middle part forms a middle part main truss, and then dividing the three sections of main trusses into a plurality of sections of truss bodies;
(2) the parts of the large-span arch-shaped pipe truss are horizontally and integrally pre-assembled and welded in a factory to form a truss body, and then all the truss bodies are transported to an installation site;
(3) arranging a steel horizontal splicing platform on an outside-crossing site, and splicing truss bodies corresponding to the three sections of main trusses to form three sections of main trusses;
(4) after the hoisting machine is in place, two or four steel wire rope binding points are arranged on the end part main truss according to the total length of the end part main truss, the length of the binding points from the center of the end part main truss is equal to 1/8-1/6 of the total length of the end part main truss, the binding points arranged on the end part main truss are symmetrically arranged, a hoisting auxiliary device is assembled according to the length of the end part main truss, when the two binding points are arranged, the steel wire ropes of the two steel wire rope binding points are respectively connected with round holes positioned below the ear plates at the two end parts of the hoisting auxiliary device, and correspondingly, the round holes positioned above the ear plates at the end parts are connected with a hoisting machine lifting hook by; when the four binding points are arranged, the steel wire ropes of the two steel wire rope binding points positioned on the outer side of the end part main truss are respectively connected with the round holes positioned below the lug plates at the two end parts of the hoisting auxiliary device, correspondingly, the round holes positioned above the lug plates at the end parts are connected with the hoisting machine lifting hook by using the steel wire ropes, the steel wire ropes of the steel wire rope binding points positioned in the middle part of the end part main truss are connected with the lifting lug holes of the lifting lug plates below the middle part of the hoisting auxiliary device, and meanwhile, the lifting lug holes of the lifting lug plates above the middle part of the hoisting auxiliary device are correspondingly connected with the hoisting; the included angles between all the steel wire ropes and the vertical direction are less than or equal to 30 degrees;
in the hoisting process, the two end sections and the plurality of adjusting sections are assembled, the two round holes of the end sections are connected with a hoisting machine lifting hook through a steel wire rope and an arched pipe truss respectively, the lifting lug plates on the seamless circular steel pipes are symmetrically used, the included angle between the steel wire rope and the vertical direction is not more than 30 degrees, for example, alpha and beta in the figure 4 are not more than 30 degrees, so that the hoisting auxiliary device is uniformly stressed, the hoisting auxiliary device is prevented from deforming in the hoisting process of the large-span arched pipe truss, and the quality and the safety in the hoisting process are ensured.
(5) During hoisting, hoisting the end part main truss to a specified position by adopting a total station coordinate measurement method, then welding the end part main truss with a pre-installed support, and then tensioning a cable rope to temporarily fix the end part main truss;
(6) repeating the steps (4) and (5) to complete the installation of the main truss at the other end part;
(7) the method comprises the following steps of folding and hoisting under the conditions of no wind and proper temperature, after the hoisting machine is in place, arranging two or four steel wire rope binding points on a middle main truss according to the total length of the middle main truss, wherein the length of the binding points from the center of an end main truss is 1/8-1/6 of the total length of the end main truss, the binding points arranged on the middle main truss are symmetrically arranged, assembling a hoisting auxiliary device according to the length of the middle main truss, when two binding points are arranged, steel wire ropes of the two steel wire rope binding points are respectively connected with round holes, positioned below the ear plates at two ends of the hoisting auxiliary device, and correspondingly, the round holes, positioned above the ear plates at the ends, are connected with hoisting machine lifting hooks through steel wire; when the four binding points are arranged, the steel wire ropes of the two steel wire rope binding points positioned on the outer side of the middle main truss are respectively connected with the round holes positioned below the lug plates at the two end parts of the hoisting auxiliary device, correspondingly, the round holes positioned above the lug plates at the end parts are connected with the hoisting machine lifting hook by using the steel wire ropes, the steel wire ropes at the steel wire rope binding points in the middle of the middle main truss are connected with the lifting lug holes of the lifting lug plates below the middle part of the hoisting auxiliary device, and meanwhile, the lifting lug holes of the lifting lug plates above the middle part of the hoisting auxiliary device are correspondingly connected with the hoisting machine lifting hook by; the included angles between all the steel wire ropes and the vertical direction are less than or equal to 30 degrees; the schematic structural diagram of hoisting the middle pipe truss is shown in fig. 4;
(8) during hoisting, after the middle main truss is hoisted to a specified position, the two ends of the middle main truss are respectively welded and fixed with the main trusses at the two ends, and therefore the installation of the large-span arched truss is completed.
Finally, it should be noted that the above-mentioned embodiments of the present invention are only examples for illustrating the present invention, and are not limitations to the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.
Claims (9)
1. The large-span arched pipe truss hoisting auxiliary device is characterized by comprising a seamless circular steel pipe, wherein the seamless circular steel pipe is horizontally arranged, a plurality of groups of lug plates are arranged on the seamless circular steel pipe, two lug plates of each group of lug plates are symmetrically arranged on the upper side and the lower side of the seamless circular steel pipe, all the groups of lug plates are distributed along the longitudinal direction of the seamless circular steel pipe, and each lug plate is provided with a lug hole for arranging a steel wire rope to facilitate hoisting; end lug plates are arranged at two ends of the seamless round steel pipe, the end lug plates are vertically arranged and correspond to the diameter of the seamless round steel pipe in the vertical direction, two round holes are arranged on the end lug plates, and the two round holes are arranged in an up-and-down symmetrical manner; the end ear plate is fixed on the seamless circular steel tube through the connecting plate, the connecting plate is vertically arranged, one side face of the connecting plate is welded and fixed on the end face of the seamless circular steel tube, and the other side face of the connecting plate is used for welding and fixing the end ear plate.
2. The large-span arched pipe truss hoisting auxiliary device according to claim 1, wherein the seamless circular steel pipe is composed of a plurality of sections, two sections at the end constitute end sections, two sections at the middle constitute adjusting sections, flanges are arranged at two ends of each adjusting section, adjacent adjusting sections are fixed through bolts penetrating through corresponding bolt holes in the flanges, one ends of the end sections corresponding to the adjusting sections are provided with the flanges, and the adjusting sections and the end sections are fixed through the corresponding bolt holes in the flanges through the bolts.
3. The large-span arched pipe truss hoisting auxiliary device is characterized in that a plurality of stiffening plates are arranged at the joints of the end sections, the adjusting sections and the flanges, the stiffening plates are arranged along the circumferences of the flanges, and each stiffening plate is welded and fixed with the flange and the seamless round steel pipe respectively and used for improving the rigidity of the device.
4. The hoisting auxiliary device for the large-span arched pipe truss according to claim 2, wherein the number of the adjusting sections is multiple, and the lengths of all the adjusting sections are the same or different.
5. The hoisting auxiliary device for the large-span arched pipe truss according to claim 1, wherein a first stiffening rib is horizontally arranged between the two round holes on the two side surfaces of the end ear plate, and a second stiffening rib is horizontally arranged on the end ear plate of the upper round hole, the first stiffening rib and the second stiffening rib are respectively welded and fixed with the connecting plate at the corresponding ends of the connecting plate, and the length of the second stiffening rib is smaller than that of the first stiffening rib.
6. The hoisting auxiliary device for the large-span arched pipe truss according to claim 1, wherein the area of the connecting plate is larger than that of the end face of the seamless circular steel pipe, so that the welding area of the connecting plate, the end lug plate and the seamless circular steel pipe is increased.
7. The hoisting auxiliary device for the large-span arched pipe truss according to claim 6, wherein the lower end of the connecting plate is a length away from the seamless circular steel pipe, so that a supporting connecting plate is arranged between the lower part of the connecting plate and the seamless circular steel pipe, and the supporting connecting plate is respectively welded and fixed with the connecting plate and the seamless circular steel pipe.
8. The large-span arched pipe truss hoisting auxiliary device as claimed in claim 1, wherein all the lifting lug plates are semicircular at the end far away from the seamless round steel pipe, so as to reduce the abrasion to the steel wire rope.
9. The hoisting auxiliary device for the large-span arched pipe truss according to claim 1, wherein the lower ends of the end ear plates are arc-shaped, so that abrasion to steel wire ropes is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020484568.6U CN211895671U (en) | 2020-04-03 | 2020-04-03 | Large-span arched pipe truss hoisting auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020484568.6U CN211895671U (en) | 2020-04-03 | 2020-04-03 | Large-span arched pipe truss hoisting auxiliary device |
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| Publication Number | Publication Date |
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| CN211895671U true CN211895671U (en) | 2020-11-10 |
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| CN202020484568.6U Active CN211895671U (en) | 2020-04-03 | 2020-04-03 | Large-span arched pipe truss hoisting auxiliary device |
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