CN113336075A - Prefabricated part hoisting steel beam and using method - Google Patents
Prefabricated part hoisting steel beam and using method Download PDFInfo
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- CN113336075A CN113336075A CN202110582183.2A CN202110582183A CN113336075A CN 113336075 A CN113336075 A CN 113336075A CN 202110582183 A CN202110582183 A CN 202110582183A CN 113336075 A CN113336075 A CN 113336075A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 301
- 239000010959 steel Substances 0.000 title claims abstract description 301
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000002787 reinforcement Effects 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000005728 strengthening Methods 0.000 claims abstract description 12
- 230000006978 adaptation Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 44
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims 2
- 230000008569 process Effects 0.000 abstract description 8
- 238000005452 bending Methods 0.000 abstract description 2
- 238000009435 building construction Methods 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a prefabricated part hoisting steel beam and a using method thereof, and relates to the technical field of assembly type building construction hoisting. In order to promote hoist and mount reliability, this girder steel includes main steel sheet and strengthening mechanism, and strengthening mechanism sets up in main steel sheet both sides, and strengthening mechanism includes that first reinforcement channel-section steel and second consolidate the channel-section steel, and first reinforcement channel-section steel and second consolidate the channel-section steel and set up about main steel sheet symmetry, the length adaptation of channel-section steel and main steel sheet is consolidated to first reinforcement channel-section steel and second, and the central line of first reinforcement channel-section steel and second reinforcement channel-section steel and the coincidence of the central line of main steel sheet. The hoisting method comprises the following steps: mounting the steel beam on a crane through the upper assembly hole and the two groups of steel wire ropes; and the other two groups of steel wire ropes respectively pass through the lower assembling holes at the two ends of the steel beam. The prefabricated part hoisting steel beam provided by the invention can ensure the stability in the hoisting process; and the vertical shearing force of the prefabricated part is dispersed during hoisting, so that the bending deformation of the prefabricated part caused by self weight is reduced.
Description
Technical Field
The invention relates to the technical field of assembly type construction, in particular to a large prefabricated part hoisting steel beam with the transverse length exceeding 4m and a using method thereof.
Background
At present, the allowable spreading angle of the steel wire rope is limited within the allowable range of safe operation of hoisting operation, and according to the relevant hoisting regulation of an assembly type structure in the technical Standard for assembled concrete buildings GB/T51231-; therefore, the distance between two lifting points distributed along the length direction of the prefabricated part to be lifted is small; therefore, when the specification of the component is too long, the distance between two groups of lifting points distributed along the length direction of the component is small, the plates on two sides of the lifting points extend out for a long time, the balance is difficult to keep in the lifting process under the influence of the dead weight, the component is difficult to lift, and even the danger of slipping in the lifting process due to the fact that two ends of the component collapse seriously is caused.
Through retrieval, chinese patent application number is CN201821225251.X discloses a hoist of area protection hasp, including rings and tool to lock, the welding of rings bottom surface has the connecting hole, and is connected with the connecting piece through connecting bolt between the connecting hole. The hanger in the above patent has the following disadvantages: although a certain hoisting requirement can be met, two hoisting points with a long distance are arranged on the prefabricated part to the maximum extent during hoisting, so that the prefabricated part is easy to bend and deform due to self weight, and therefore, the improvement is needed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a prefabricated part hoisting steel beam and a hoisting method.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a prefabricated component hoist and mount girder steel, including main steel sheet and strengthening mechanism, strengthening mechanism sets up in main steel sheet both sides, strengthening mechanism consolidates the channel-section steel including first reinforcement channel-section steel and second, first reinforcement channel-section steel and second are consolidated the channel-section steel and are set up about main steel sheet symmetry, the length adaptation of channel-section steel and main steel sheet is consolidated to first reinforcement channel-section steel and second, and the central line coincidence of the central line of channel-section steel and main steel sheet is consolidated to first reinforcement channel-section steel and second, last assembly hole and lower assembly hole have been seted up on the main steel sheet, go up the assembly hole and correspond with the upper and lower position in lower assembly hole.
Preferably: all adopt between main steel sheet and the first channel-section steel of consolidating, main steel sheet and the second and lead to long full weld's mode welded fastening, the leg height is 8 mm.
Further: the main steel plate was a 16mm thick Q235B steel plate with a length of 4600m and a height of 450 mm.
Further preferred is: the first reinforcing channel steel and the second reinforcing channel steel both adopt 20# a channel steel.
As a preferable aspect of the present invention: the number of the upper assembling holes and the number of the lower assembling holes are even, and the upper assembling holes and the lower assembling holes on the two sides are symmetrical about the vertical center line of the main steel plate.
Further preferred as the invention: the number of the upper assembling holes and the lower assembling holes is further limited to 6.
As a still further scheme of the invention: the aperture of the upper assembly hole and the aperture of the lower assembly hole are both 40 mm.
On the basis of the scheme: and the upper assembly hole and the lower assembly hole are provided with protection ribs made of round steel.
A hoisting method for hoisting a steel beam by a prefabricated part comprises the following steps:
s1: mounting the steel beam on a crane through the upper assembly hole and the two groups of steel wire ropes;
s2: respectively penetrating the other two groups of steel wire ropes through lower assembling holes at two ends of the steel beam;
s3: then fixing the steel wire rope penetrating through the lower assembly hole at a certain included angle to the prefabricated part to be hoisted, forming a four-point hoisting structure, and enabling the geometric center of the hoisted steel beam and the geometric center of the member to be in a vertical state;
s4: carefully checking the fixation of each connection point to ensure that the fixation is qualified;
s5: and starting the hoisting operation.
It is further preferable on the basis of the foregoing scheme that: in the steps S1 and S2, the selected upper assembling hole and the lower assembling hole are symmetrical about the central line of the main steel plate, the stress balance is ensured, and the included angle of the steel wire rope is ensured to be within a specified range; in the step S4, the firmness of the welding between the suspension point and the contact surface of the hoisting steel beam, the main steel plate and the first reinforcing channel steel, and the contact surface of the main steel plate and the second reinforcing channel steel should be checked to determine whether the leg height is 8 mm.
It is further preferable on the basis of the foregoing scheme that: triangular steel pieces are welded between the outer walls of the top and the bottom of the first reinforcing channel steel and the second reinforcing channel steel and the main steel plate, the number of the triangular steel pieces is 8 or more than 8, and the triangular steel pieces are symmetrical about three central lines of the main steel plate; two groups of symmetrical reinforcing steel columns are welded between the inner walls of the tops and the inner walls of the bottoms of the first reinforcing channel steel and the second reinforcing channel steel, and each group of reinforcing steel columns are distributed at equal intervals; the position of the triangular steel piece corresponds to each group of reinforced steel columns.
It is further preferable on the basis of the foregoing scheme that: the outer wall welding of first reinforcement channel-section steel, second reinforcement channel-section steel bottom has the connection steel column that corresponds with the reinforcement steel column position, connects the steel column and is crisscross distribution setting with lower assembly hole, and connects steel column bottom outer wall integral type and be provided with the hoist and mount steel ring.
It is further preferable on the basis of the foregoing scheme that: the hoisting steel ring comprises an inner steel ring and an outer steel ring, the inner steel ring and the outer steel ring are concentric, and the inner steel ring is connected to the inner wall of the outer steel ring in a sliding mode.
A hoisting method for hoisting a steel beam by a prefabricated part comprises the following steps:
s1: mounting the steel beam on a crane through the upper assembly hole and the two groups of steel wire ropes;
s2: checking whether the inner steel ring rotates smoothly inside the outer steel ring;
s3: the other two groups of steel wire ropes respectively penetrate through the steel beam to be connected into the hoisting steel rings at the bottom ends of the steel columns;
s4: then fixing the steel wire rope penetrating through the hoisting steel ring at a certain included angle to the prefabricated part to be hoisted, forming a four-point hoisting structure, and keeping the geometric center of the hoisting steel beam and the geometric center of the member in a vertical state;
s5: carefully checking the fixation of each connection point to ensure that the fixation is qualified;
s6: and starting the hoisting operation.
It is further preferable on the basis of the foregoing scheme that: in the steps of S1 and S2, the selected upper assembling hole and the selected hoisting steel ring are symmetrical about the central line of the main steel plate, the stress balance is ensured, and the included angle of the steel wire rope is ensured to be within a specified range.
The invention has the beneficial effects that:
1. the hoisting steel beam for the prefabricated part can reduce the construction space in the vertical direction, reduce the gravity center of hoisting machinery and improve the safety of a construction site.
2. The prefabricated part hoisting steel beam provided by the invention can shorten the length of a hoisting rod of hoisting machinery, reduce the number of hoisting machinery used in a hoisting process and save the cost of construction machinery.
3. According to the hoisting steel beam for the prefabricated part, provided by the invention, because the upper assembling hole and the lower assembling hole with the diameter of 40mm are reserved on the hoisting steel beam, and two groups of steel wire ropes are respectively penetrated on the steel beam when the hoisting steel beam is used, the distance between two farthest hoisting points in the length direction of the member can be effectively increased, so that the length of the member outside the hoisting points is reduced, the member is kept balanced in the hoisting process, meanwhile, the bending deformation generated in the hoisting process is reduced, and the quality is ensured not to be influenced; the prefabricated part hoisting steel beam provided by the invention has the advantages of simple structure, obvious effect, convenience in use and low cost.
4. According to the invention, the reinforcing steel column is arranged, so that the first reinforcing channel steel and the second reinforcing channel steel can be reliably supported at multiple points, the first reinforcing channel steel and the second reinforcing channel steel are prevented from being deformed by better counteracting stress, and in addition, the firmness of connection among the first reinforcing channel steel, the second reinforcing channel steel and the main steel plate can be further enhanced by arranging the triangular steel piece, so that the structural reliability is improved.
5. According to the invention, by arranging the connecting steel column and the hoisting steel ring, the hoisting space can be further expanded, so that different hoisting requirements are met, and the reliability and the practicability are improved; through setting up interior steel ring and outer steel ring, can slide in the mode of outer steel ring through interior steel ring and unload power at hoist and mount in-process, further reduce the wearing and tearing degree of lifting rope, promote the reliability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural view of an integral hoisting steel beam of a prefabricated part provided by the invention;
FIG. 2 is a diagram showing the relationship between the leg height of a prefabricated member hoisting steel beam and the structural firmness of the steel beam;
fig. 3 is a schematic structural view of an integral hoisting steel beam of a prefabricated part according to embodiment 3 of the present invention;
fig. 4 is a schematic structural view of an integral hoisting steel beam of a prefabricated part according to embodiment 4 of the present invention;
fig. 5 is a schematic structural view of a hoisting steel beam of a prefabricated part according to embodiment 5 of the present invention.
In the figure: the steel column comprises a main steel plate 1, a first reinforcing channel steel 2, an upper assembling hole 3, a lower assembling hole 4, a second reinforcing channel steel 5, a triangular steel piece 6, a reinforcing steel column 7, a hoisting steel ring 8, a connecting steel column 9, an inner steel ring 10 and an outer steel ring 11.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, 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 only partial 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.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1:
the utility model provides a prefabricated component hoist and mount girder steel, as shown in figure 1, including main steel sheet 1 and strengthening mechanism, strengthening mechanism sets up in 1 both sides of main steel sheet, strengthening mechanism includes that first reinforcement channel-section steel 2 and second consolidate channel-section steel 5, first reinforcement channel-section steel 2 and second consolidate channel-section steel 5 about 1 symmetry setting of main steel sheet, the length of channel-section steel 5 and the length adaptation of main steel sheet 1 are consolidated to first reinforcement channel-section steel 2 and second, and the central line that channel-section steel 5 was consolidated to first reinforcement channel-section steel 2 and second coincides with the central line of main steel sheet 1, last assembly hole 3 and lower assembly hole 4 have been seted up on the main steel sheet 1, the upper and lower position of going up assembly hole 3 and lower assembly hole 4 corresponds.
In order to ensure the connection firmness; as shown in fig. 1 and 2, the main steel plate 1 and the first reinforcing channel steel 2, and the main steel plate 1 and the second reinforcing channel steel 5 are welded and fixed in a full-length welding mode, and the height of the leg is 7-9 mm, even 8 mm.
In order to ensure structural firmness; as shown in FIG. 1, the main steel plate 1 was a Q235B steel plate 16mm thick, 4600m in length and 450mm in height.
In order to ensure structural firmness; as shown in fig. 1, 20# a channels are used for the first reinforcing channel 2 and the second reinforcing channel 5.
The hoisting is convenient; as shown in fig. 1, the number of the upper and lower fitting holes 3 and 4 is even, and the upper and lower fitting holes 3 and 4 on both sides are symmetrical with respect to the vertical center line of the main steel plate 1.
The hoisting is convenient; as shown in fig. 1, the number of upper and lower fitting holes 3 and 4 is further defined to be 6.
The hoisting is convenient; as shown in fig. 1, the upper and lower fitting holes 3 and 4 each have a hole diameter of 40 mm.
In order to reduce the wear of the steel cord; as shown in fig. 1, the upper assembling hole 3 and the lower assembling hole 4 are both provided with a protection rib made of round steel; through setting up the protection muscle, can effectively reduce wire rope's wearing and tearing, reliability when having promoted wire rope's life and hoist and mount.
Example 2:
a hoisting method for hoisting a steel beam by a prefabricated part comprises the following steps as shown in figure 1:
s1: mounting the steel beam on a crane through the upper assembling hole 3 and the two groups of steel wire ropes;
s2: the other two groups of steel wire ropes respectively pass through the lower assembly holes 4 at the two ends of the steel beam;
s3: then fixing the steel wire rope penetrating through the lower assembly hole 4 at a certain included angle to the prefabricated part to be hoisted, forming a four-point hoisting structure, and enabling the geometric center of the hoisted steel beam and the geometric center of the member to be in a vertical state;
s4: carefully checking the fixation of each connection point to ensure that the fixation is qualified;
s5: and starting the hoisting operation.
In order to improve reliability; in the steps S1 and S2, the selected upper assembling hole 3 and the selected lower assembling hole 4 are symmetrical about the central line of the main steel plate 1, the stress balance is ensured, and the included angle of the steel wire rope is ensured to be within a specified range; in the step S4, the firmness of the welding between the suspension point and the contact surface of the hoisting steel beam, the main steel plate 1 and the first reinforcing channel steel 2, and the contact surface of the main steel plate 1 and the second reinforcing channel steel 5 should be checked, and it is determined whether the leg height is 8 mm.
Example 3:
in order to improve structural firmness, the embodiment improves the following steps based on embodiment 1, as shown in fig. 3: triangular steel pieces 6 are welded between the outer walls of the top and the bottom of the first reinforcing channel steel 2 and the second reinforcing channel steel 5 and the main steel plate 1, the number of the triangular steel pieces 6 is 8 or more than 8, and the triangular steel pieces 6 are symmetrical about three central lines of the main steel plate 1; two groups of symmetrical reinforcing steel columns 7 are welded between the inner walls of the tops and the inner walls of the bottoms of the first reinforcing channel steel 2 and the second reinforcing channel steel 5, and the reinforcing steel columns 7 of each group are distributed at equal intervals; the position of the triangular steel piece 6 corresponds to each group of reinforced steel columns 7; through setting up reinforcing steel column 7, can consolidate channel-section steel 2, second to first reinforcing channel-section steel 5 and carry out the reliable support of multiple spot to better offset stress avoids first reinforcing channel-section steel 2, the second to consolidate channel-section steel 5 deformation, and in addition, set up triangle steel spare 6 and can further strengthen the firm in connection degree between first reinforcing channel-section steel 2, the second reinforcing channel-section steel 5 and the main steel sheet 1, promoted structural reliability.
Example 4:
in order to improve structural firmness, the embodiment improves the following improvements on the basis of embodiment 3, as shown in fig. 4: connecting steel columns 9 corresponding to the reinforcing steel columns 7 are welded on the outer walls of the bottoms of the first reinforcing channel steel 2 and the second reinforcing channel steel 5, the connecting steel columns 9 and the lower assembling holes 4 are arranged in a staggered mode, and hoisting steel rings 8 are integrally arranged on the outer walls of the bottoms of the connecting steel columns 9; through setting up connection steel column 9 and hoist and mount steel ring 8, can further expand the hoist and mount space to satisfy different hoist and mount demands, promoted reliability and practicality.
Example 5:
in order to improve structural firmness, the embodiment improves the following improvements on the basis of embodiment 4, as shown in fig. 5: the hoisting steel ring 8 comprises an inner steel ring 10 and an outer steel ring 11, the inner steel ring 10 and the outer steel ring 11 are concentric, and the inner steel ring 10 is connected to the inner wall of the outer steel ring 11 in a sliding manner; through setting up interior steel ring 10 and outer steel ring 11, can slide in the mode of outer steel ring 11 through interior steel ring 10 and unload power in hoist and mount in-process, further reduce the wearing and tearing degree of lifting rope, promote the reliability.
Example 6:
a method for hoisting a prefabricated part hoisting steel beam is shown in figures 4 and 5, and comprises the following steps:
s1: mounting the steel beam on a crane through the upper assembling hole 3 and the two groups of steel wire ropes;
s2: checking whether the inner steel ring 10 rotates smoothly in the outer steel ring 11;
s3: the other two groups of steel wire ropes respectively penetrate through the steel beam and are connected with the hoisting steel rings 8 at the bottom ends of the steel columns 9;
s4: then fixing the steel wire rope penetrating through the hoisting steel ring 8 at a certain included angle to the prefabricated part to be hoisted, forming a four-point hoisting structure, and keeping the geometric center of the hoisted steel beam and the geometric center of the member in a vertical state;
s5: carefully checking the fixation of each connection point to ensure that the fixation is qualified;
s6: and starting the hoisting operation.
In order to improve reliability; in the steps of S1 and S2, the selected upper assembling hole 3 and the selected hoisting steel ring 8 are symmetrical about the central line of the main steel plate 1, the stress balance is ensured, and the included angle of the steel wire rope is ensured to be within a specified range.
Experiment one:
in order to verify the influence of the height of the welding leg on the structural firmness, other conditions are controlled to be unchanged, the height of the welding leg is changed, multiple tests are carried out, and the test results are analyzed and evaluated to obtain the following data:
| height of leg | 7.0mm | 7.5mm | 8.0mm | 8.5mm | 9.0mm |
| Structural firmness | 79.8 | 87.3 | 92.7 | 90.2 | 86.5 |
From the above, the height of the leg has an obvious influence on the structural firmness, and when the height of the leg is 7.0 mm-8.0 mm, the structural firmness is positively correlated with the height of the leg, and when the height of the leg is 8.0 mm-9.0 mm, the structural firmness is negatively correlated with the height of the leg, so that the height of the leg is preferably 8.0 mm.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a prefabricated component hoist and mount girder steel, includes main steel sheet (1) and strengthening mechanism, its characterized in that, strengthening mechanism sets up in main steel sheet (1) both sides, strengthening mechanism includes that first reinforcement channel-section steel (2) and second consolidate channel-section steel (5), and first reinforcement channel-section steel (2) and second consolidate channel-section steel (5) and set up about main steel sheet (1) symmetry, and the length of first reinforcement channel-section steel (2) and second consolidation channel-section steel (5) and the length adaptation of main steel sheet (1), and the central line coincidence of the central line of first reinforcement channel-section steel (2) and second consolidation channel-section steel (5) and main steel sheet (1), last assembly hole (3) and lower assembly hole (4) have been seted up on main steel sheet (1), the upper and lower position of going up assembly hole (3) and lower assembly hole (4) corresponds.
2. The hoisting steel beam for the prefabricated parts according to claim 1, wherein the main steel plate (1) and the first reinforcing channel steel (2) and the main steel plate (1) and the second reinforcing channel steel (5) are welded and fixed in a full-length welding mode, and the height of a welding leg is 8 mm; the main steel plate (1) is a Q235B steel plate with the thickness of 16mm, the length of the steel plate is 4600m, and the height of the steel plate is 450 mm.
3. The precast member hoisting steel beam according to claim 2, wherein the first reinforcing channel (2) and the second reinforcing channel (5) are 20# a channels.
4. The precast member hoisting steel beam according to claim 3, wherein the number of the upper assembling holes (3) and the lower assembling holes (4) is even, and the upper assembling holes (3) and the lower assembling holes (4) on both sides are symmetrical about the vertical center line of the main steel plate (1); and the upper assembly hole (3) and the lower assembly hole (4) are provided with protection ribs made of round steel.
5. A precast member hoisting steel beam according to claim 1, wherein the upper and lower assembling holes (3, 4) have a hole diameter of 40 mm.
6. The precast element hoisting steel beam according to any one of claims 1 to 5, wherein triangular steel members (6) are welded between the top outer wall and the bottom outer wall of the first reinforcing channel steel (2) and the second reinforcing channel steel (5) and the main steel plate (1), and the triangular steel members (6) are symmetrical about three central lines of the main steel plate (1); two groups of symmetrical reinforcing steel columns (7) are welded between the inner walls of the tops and the inner walls of the bottoms of the first reinforcing channel steel (2) and the second reinforcing channel steel (5), and the reinforcing steel columns (7) of each group are distributed at equal intervals; the position of the triangular steel piece (6) corresponds to each group of reinforced steel columns (7).
7. The hoisting steel beam for the prefabricated parts as claimed in claim 6, wherein the outer walls of the bottoms of the first reinforcing channel steel (2) and the second reinforcing channel steel (5) are welded with connecting steel columns (9) corresponding to the positions of the reinforcing steel columns (7), the connecting steel columns (9) and the lower assembling holes (4) are arranged in a staggered manner, and the outer walls of the bottoms of the connecting steel columns (9) are integrally provided with hoisting steel rings (8).
8. The precast member hoisting steel beam according to claim 7, wherein the hoisting steel ring (8) comprises an inner steel ring (10) and an outer steel ring (11), the inner steel ring (10) and the outer steel ring (11) are concentric, and the inner steel ring (10) is slidably connected to the inner wall of the outer steel ring (11).
9. A hoisting method for hoisting a steel beam by a prefabricated part is characterized by comprising the following steps:
s1: mounting the steel beam on a crane through the upper assembly hole (3) and the two groups of steel wire ropes;
s2: the other two groups of steel wire ropes respectively pass through the lower assembly holes (4) at the two ends of the steel beam;
s3: then fixing the steel wire rope penetrating through the lower assembly hole (4) at a certain included angle to the prefabricated part to be hoisted, forming a four-point hoisting structure, and enabling the geometric center of the hoisted steel beam and the geometric center of the member to be in a vertical state;
s4: carefully checking the fixation of each connection point to ensure that the fixation is qualified;
s5: and starting the hoisting operation.
10. The method for hoisting a precast member steel girder according to claim 9, wherein the upper assembling hole (3) and the lower assembling hole (4) are selected to be symmetrical with respect to the center line of the main steel plate (1) in the steps of S1 and S2, thereby ensuring the stress balance and the included angle of the steel wire rope within a predetermined range; in the step S4, the firmness of the welding between the suspension point and the contact surface of the hoisting steel beam, the main steel plate (1), the first reinforcing channel steel (2), the main steel plate (1), and the second reinforcing channel steel (5) should be checked, and it is determined whether the leg height is 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110582183.2A CN113336075A (en) | 2021-05-27 | 2021-05-27 | Prefabricated part hoisting steel beam and using method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110582183.2A CN113336075A (en) | 2021-05-27 | 2021-05-27 | Prefabricated part hoisting steel beam and using method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT312234B (en) * | 1970-08-12 | 1973-12-27 | Schwaiger Jos | Device on a precast concrete part for lifting and transporting the same |
| CN205675990U (en) * | 2016-06-15 | 2016-11-09 | 北京城建建设工程有限公司 | A kind of building prefabricated components hanging apparatus |
| CN109422195A (en) * | 2017-08-31 | 2019-03-05 | 上海宝冶集团有限公司 | Lifting gear and its application method for hoisting prefabricated component |
| CN109863108A (en) * | 2016-09-30 | 2019-06-07 | 维斯塔斯风力***有限公司 | Method for manipulating the equipment of wind turbine components and assembling the equipment and use the device manipulation wind turbine components |
| CN209210193U (en) * | 2018-12-25 | 2019-08-06 | 四川阳光坚端铝业有限公司 | A kind of aluminium alloy round cast ingot suspender |
| CN210064905U (en) * | 2019-03-18 | 2020-02-14 | 广州城建职业学院 | Multipurpose hanging beam for assembly type building component |
-
2021
- 2021-05-27 CN CN202110582183.2A patent/CN113336075A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT312234B (en) * | 1970-08-12 | 1973-12-27 | Schwaiger Jos | Device on a precast concrete part for lifting and transporting the same |
| CN205675990U (en) * | 2016-06-15 | 2016-11-09 | 北京城建建设工程有限公司 | A kind of building prefabricated components hanging apparatus |
| CN109863108A (en) * | 2016-09-30 | 2019-06-07 | 维斯塔斯风力***有限公司 | Method for manipulating the equipment of wind turbine components and assembling the equipment and use the device manipulation wind turbine components |
| CN109422195A (en) * | 2017-08-31 | 2019-03-05 | 上海宝冶集团有限公司 | Lifting gear and its application method for hoisting prefabricated component |
| CN209210193U (en) * | 2018-12-25 | 2019-08-06 | 四川阳光坚端铝业有限公司 | A kind of aluminium alloy round cast ingot suspender |
| CN210064905U (en) * | 2019-03-18 | 2020-02-14 | 广州城建职业学院 | Multipurpose hanging beam for assembly type building component |
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