CN112320561A - Device and method for correcting eccentric hoisting of prefabricated culvert side wall components - Google Patents
Device and method for correcting eccentric hoisting of prefabricated culvert side wall components Download PDFInfo
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- CN112320561A CN112320561A CN202011356719.0A CN202011356719A CN112320561A CN 112320561 A CN112320561 A CN 112320561A CN 202011356719 A CN202011356719 A CN 202011356719A CN 112320561 A CN112320561 A CN 112320561A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 230000005484 gravity Effects 0.000 claims description 12
- 238000009417 prefabrication Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 22
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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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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Abstract
本发明属于侧墙吊装技术领域，具体为一种用于纠正预制涵洞侧墙构件偏心吊装的装置，包括通过多个支撑板固定连接的第一面板和第二面板，每个支撑板上均开设有两间隔设置的第一通孔，第一通孔上穿设有第一杆件，第一面板上穿设有与第一杆件连接的吊绳；第二面板上间隔设置有第一侧板和第二侧板，第一侧板远离空隙的一面上还设有竖直板，竖直板上还开设有第二通孔，第一侧板远离第二面板的一端还开设有供预制涵洞侧墙构件的吊环露出的槽口，第二通孔和吊环上同时穿设有第二杆件。本发明不仅能解决预制侧墙构件在起吊过程的偏心吊装问题，使构件在起吊过程减少碰撞，保护了预制侧墙构件的完整性，而且还能提高预制侧墙构件在起吊过程的安全系数。
The invention belongs to the technical field of side wall hoisting, in particular to a device for correcting the eccentric hoisting of prefabricated culvert side wall components, comprising a first panel and a second panel that are fixedly connected by a plurality of support plates, each support plate is provided with an opening There are two first through holes arranged at intervals, the first through hole is provided with a first rod, the first panel is provided with a hanging rope connected with the first rod; the second panel is provided with a first side at intervals plate and the second side plate, the side of the first side plate away from the gap is also provided with a vertical plate, the vertical plate is also provided with a second through hole, and the end of the first side plate away from the second panel is also provided with a prefabricated plate for prefabrication. The notch exposed by the hanging ring of the culvert side wall member, the second through hole and the hanging ring are simultaneously provided with a second rod. The invention can not only solve the problem of eccentric hoisting of the prefabricated side wall components during the hoisting process, reduce the collision of the components during the hoisting process, protect the integrity of the prefabricated side wall components, but also improve the safety factor of the prefabricated side wall components during the hoisting process.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of side wall hoisting, in particular to a device and a method for correcting eccentric hoisting of a prefabricated culvert side wall component.
[ background of the invention ]
With the rapid development of economy in China, the construction of infrastructure is vigorous, and with the acceleration of infrastructure, project construction is required to be completed rapidly in the construction process. The assembly type prefabricated part can quickly finish the installation and construction of projects on the premise of ensuring the quality, the construction requirements of the current infrastructure are met, and more concrete prefabricated parts are adopted for construction of the infrastructure to realize quick construction. In the rapid application of prefabricated parts, the hoisting of the parts is a key process for completing assembly type construction, and the requirements of the construction on the hoisting of the concrete prefabricated parts are higher and higher along with the application of the assembly type construction in various projects.
In the infrastructure, when facilities such as a highway or a railway are newly built or expanded in traffic facility construction, culvert construction is a key project for determining whether a project can enter the comprehensive construction, and the assembly type culvert construction provides guarantee for quickly completing the culvert construction. At present, the prefabricated culvert side wall structure is adopted to reserve the lifting ring on one side for lifting, so that the manufacturing of a prefabricated mould is simplified, the prefabricated concrete member is also convenient to pour, the requirement of culvert clearance is met, and the potential safety hazard of the operation process caused by the lifting ring in the culvert clearance is prevented.
In the construction process of the fabricated culvert, the hoisting construction of the side wall component mainly takes eccentric hoisting as a main part. But the eccentric hoist and mount of side wall component mainly has the problem in the current culvert assembled work progress: 1. the concrete member collides with the ground or the like, damaging the structural lines and structures. 2. The unilateral is lifted by crane and is easily caused inaccurate in positioning, the position needs to be repeatedly lifted and adjusted, and the like, so that the efficiency of lifting the culvert is reduced. 3. The single-side hoisting concrete is stressed on one side, reinforcing steel bars need to be laid, and the cost is increased. 4. The components are lifted on one side, the stress of the mooring rope is large, and the lifting safety of the prefabricated culvert side wall components is reduced under the same condition. How to solve the eccentric hoisting problem of the member in the hoisting process becomes a key point in the rapid construction of the current traffic facilities, therefore, a method and a model for correcting the eccentric hoisting problem of the prefabricated side wall member are urgently needed to be applied to ensure the vertical hoisting installation of the prefabricated side wall member and reduce the damage of the eccentric hoisting to the member and the increase of the economic cost, which is also a technical problem urgently needed to be solved by the infrastructure.
At present, an eccentric hoisting solution is not available in the construction process of an assembled culvert.
[ summary of the invention ]
The invention aims to solve the problems, and provides a device and a method for correcting the eccentric hoisting of a prefabricated culvert side wall component, which can solve the problem of eccentric hoisting of the prefabricated side wall component in the hoisting process, reduce collision of the component in the hoisting process, protect the integrity of the prefabricated side wall component, improve the safety coefficient of the prefabricated side wall component in the hoisting process, and provide a foundation for safe construction.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a device for correcting eccentric hoisting of a prefabricated culvert side wall component is provided with hoisting rings, and comprises a first panel and a second panel which are arranged in parallel in the horizontal direction, wherein the first panel and the second panel are fixedly connected through a plurality of supporting plates which are arranged at intervals and vertically, each supporting plate is provided with two first through holes which are arranged at intervals, so that two rows of first through holes are formed in the plurality of supporting plates, a first rod piece penetrates through each row of the first through holes, a hoisting rope penetrates through the first panel, one end of the hoisting rope is fixedly connected with the first rod piece, and the other end of the hoisting rope is connected with a hoisting machine;
a first side plate and a second side plate are arranged on the second panel at intervals, so that a gap for fixedly inserting the prefabricated culvert side wall component is formed between the first side plate and the second side plate; the prefabricated culvert side wall component comprises a first side plate, a second side plate and a lifting ring, wherein the first side plate is arranged on the side, away from the gap, of the first side plate, a vertical plate is further arranged on the side, away from the gap, of the first side plate, a second through hole is further formed in the vertical plate, a notch for exposing the lifting ring is further formed in one end, away from the second panel, of the first side plate, and a second rod piece is arranged on the second through hole and the lifting ring in a penetrating.
Further, the middle part of the one side in space is kept away from to first curb plate still is equipped with the first rectangular plate of horizontal setting and the first set square of vertical setting, vertical board is located the both sides of first set square, first rectangular plate all with first set square and vertical board cross fixed connection, one side of first rectangular plate and a right-angle side of first set square all with the one side fixed connection in space is kept away from to first curb plate, another right-angle side and the second panel fixed connection of first set square.
Furthermore, a third through hole is formed in each of the four corners of the first panel, the lifting rope penetrates through each third through hole, one end of each lifting rope penetrates through the corresponding third through hole and is fixedly connected with the first rod piece, and the other end of each lifting rope is connected to a lifting hook of the crane after being gathered.
Further, the second curb plate with the connection can be dismantled to the second panel, the second curb plate is kept away from the both ends of the one side in space and still is equipped with the second set square of vertical setting, the middle part that the one side in space was kept away from to the second curb plate is equipped with the second rectangular plate of horizontal setting and the third set square of vertical setting, the second rectangular plate with the equal cross fixed connection of second set square, third set square, a right-angle side of second set square and third set square all with the connection can be dismantled to the second panel, one side of second rectangular plate and another right-angle side of third set square all with the one side fixed connection in space is kept away from to the second curb plate.
Further, I-shaped steel is fixedly arranged between the first panel and the second panel, and the vertical portion of the I-shaped steel is located between the two rows of the first through holes.
Further, the one end that the second panel was kept away from to first curb plate and second curb plate all is connected with the swash plate that leans out the setting, the notch is seted up in on the swash plate.
Further, the first rod piece and the second rod piece are both round rods.
Further, the first panel, the second panel and the support plate are all 10mm thick steel plates, and the vertical plate is a 16a channel steel.
The hoisting method by using the device for correcting the eccentric hoisting of the prefabricated culvert side wall component comprises the following steps:
(1) a first rod piece penetrates through the first through hole, the first rod piece is fixed on the supporting plate through a bolt, and one end of the lifting rope penetrates through the third through hole and then is fixed on the first rod piece;
(2) vertically hoisting the device by using a crane through a hoisting rope, and sleeving the device on the prefabricated culvert side wall component by using a gap between the first side plate and the second side plate;
(3) simultaneously penetrating a second rod piece through a second through hole in the vertical plate and a hanging ring on the prefabricated culvert side wall component to connect the device and the prefabricated culvert side wall component to form a combined whole;
(4) and then, hoisting the combined whole formed by connecting the device with the prefabricated culvert side wall component, wherein the hoisting angle alpha is larger than 60 degrees during hoisting, and the second side plate of the device is tightly attached to the prefabricated culvert side wall, so that the components can not swing randomly in the hoisting process, and the hoisting point, the gravity center of the prefabricated culvert side wall component and the gravity center of the combined whole are on the same vertical line.
By adopting the technical scheme, the invention has the beneficial effects that:
(1) the device comprises a first panel, a second panel, a first side plate, a second side plate, a vertical plate and the like, and is fixedly connected with the prefabricated side wall component to form a whole, so that a lifting point, the gravity center of the prefabricated side wall and the gravity center of the combined whole are on the same vertical line, and the eccentric hoisting problem of the existing prefabricated culvert side plate is solved; (2) the lifting rope is connected with the circular first rod piece, so that shearing force applied to a steel wire rope at the connection position is reduced, the service life of the steel wire rope is prolonged, and the safety of the hoisting process of the member is improved; (3) be used for consolidating first rectangular plate, first set-square, second rectangular plate, third set-square etc. through the setting, make the device form wholly to the I-steel is the component of main distribution power, makes the whole atress of device even, has reduced steel sheets such as first panel, second panel, first curb plate, second curb plate because the too big great deformation that produces of load, has avoided prefabricated culvert side wall component to take place to rock at hoist and mount process.
Therefore, the method corrects the eccentric hoisting problem of the prefabricated part, is simple and rapid in structural operation and few in hoisting steps, and improves the construction efficiency of the prefabricated culvert.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of a device for correcting eccentric hoisting of prefabricated culvert side wall components according to an embodiment of the present invention;
FIG. 2 is a first structural schematic diagram of the device for correcting the eccentric hoisting of the prefabricated culvert side wall component in the embodiment of the invention when hoisting the prefabricated culvert side wall component;
FIG. 3 is a second structural schematic diagram of the device for correcting the eccentric hoisting of the prefabricated culvert side wall component according to the embodiment of the invention when hoisting the prefabricated culvert side wall component;
figure 4 is a left side view of the prefabricated culvert side wall member hoisted by the device for correcting the eccentric hoisting of the prefabricated culvert side wall member according to the embodiment of the invention.
In the figure, 100-device, 200-prefabricated culvert side wall component, 1-first panel, 2-second panel, 3-support plate, 4-first through hole, 5-first rod piece, 6-lifting rope, 7-first side plate, 8-second side plate, 9-vertical plate, 10-second through hole, 11-notch, 12-second rod piece, 13-first rectangular plate, 14-first triangular plate, 15-third through hole, 16-second triangular plate, 17-second rectangular plate, 18-third triangular plate, 19-I-steel and 20-inclined plate.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-3, a device for correcting eccentric hoisting of a prefabricated culvert side wall component, a hoisting ring is arranged on a prefabricated culvert side wall component 200, the device 100 comprises a first panel 1 and a second panel 2 which are arranged in parallel in the horizontal direction, the first panel 1 and the second panel 2 are fixedly connected through a plurality of supporting plates 3 which are arranged vertically at intervals, each supporting plate 3 is provided with two first through holes 4 which are arranged at intervals, so that the supporting plates 3 are provided with two rows of first through holes 4, each row of first rod members 5 penetrate through the first through holes 4, and the first rod members 5 are fixed on the supporting plates 3 through bolts. Through adopting the bolt fastening, convenient dismantlement reaches and can choose for use suitable wire rope according to the size of different prefabricated component. A lifting rope 6 penetrates through the first panel 1, one end of the lifting rope 6 is fixedly connected with the first rod piece 5, and the other end of the lifting rope is connected to a crane, so that the device 100 and the prefabricated culvert side wall component 200 are lifted by the crane. In this embodiment, the lifting rope 6 is a steel wire rope.
The second panel 2 is provided with a first side plate 7 and a second side plate 8 which are vertically arranged and parallel at intervals, so that a gap for fixedly inserting the prefabricated culvert side wall component 200 is formed between the first side plate 7 and the second side plate 8; the one side that the space was kept away from to first curb plate 7 still is equipped with vertical board 9, second through-hole 10 has still been seted up to the one end that second panel 2 was kept away from to vertical board 9, the one end that second panel 2 was kept away from to first curb plate 7 has still been seted up the confession notch 11 that rings exposed, wear to be equipped with second member 12 on second through-hole 10 and the rings simultaneously, so that prefabricated culvert side wall component 200 with vertical board 8 fixed connection, and then make prefabricated culvert side wall component 200 with device 100 fixed connection. The vertical plates 9 not only play a role in fixedly connecting with the hanging rings of the prefabricated culvert side wall components 200, but also play a role in reinforcing the device 100 of the present invention. The first panel 1, the second panel 2 and the support plate 3 are all 10mm thick steel plates, and the vertical plate 9 is a 16a channel steel. The first rod 5 and the second rod 12 are both round rods.
Further, the middle part of one side of the first side plate 7 far away from the gap is also provided with a first rectangular plate 13 which is transversely arranged and a first triangular plate 14 which is vertically arranged, the vertical plates 9 are provided with two groups, the two groups of vertical plates 9 are respectively positioned at two sides of the first triangular plate 14, and each group of vertical plates 9 comprises two vertical plates 9 which are arranged at intervals. First rectangular plate 13 all with first set-square 14 and vertical board 9 cross fixed connection, one side of first rectangular plate 13 and a right-angle side of first set-square 14 all with the one side fixed connection in space is kept away from to first curb plate 7, another right-angle side and the 2 fixed connection of second panel of first set-square 14. The first rectangular plate 13 arranged transversely and the first triangular plate 14 arranged vertically play a role in reinforcement, and the safety performance of the invention is improved.
Furthermore, a third through hole 15 has all been seted up on four angles of first panel 1, all wear to be equipped with on each third through hole 15 lifting rope 6, four the one end of lifting rope 6 passes third through hole 15 respectively with first member 5 fixed connection, four the other end of lifting rope 6 assembles the back and connects in the lifting hook of loop wheel machine. Through the arrangement of the four lifting ropes 6, the service life of the lifting ropes 6 is prolonged, the balance of the lifting ropes 6 during lifting is improved, the lifting points, the gravity centers of the prefabricated side walls and the gravity centers of the combined whole bodies are on the same vertical line, and deviation rectification is further realized.
Further, second curb plate 8 with the connection can be dismantled to second panel 2, the both ends that the one side in space was kept away from to second curb plate 8 still are equipped with the second set-square 16 of vertical setting, the middle part that the one side in space was kept away from to second curb plate 8 is equipped with the second rectangular plate 17 of horizontal setting and the third set-square 18 of vertical setting, second rectangular plate 17 with second set-square 16, the equal cross fixed connection of third set-square 18, a right-angle side of second set-square 16 and third set-square 18 all with the connection can be dismantled to second panel 2, one side of second rectangular plate 17 and another right-angle side of third set-square 18 all with one side fixed connection in space is kept away from to second curb plate 8. The second triangular plate 16, the second rectangular plate 17 and the third triangular plate 18 are arranged on the surface, far away from the gap, of the second side plate 8, so that the device 100 is reinforced, and the safety performance and the service life of the device during hoisting are improved. The second side plate 8 and the second panel 2 are detachably connected, and the right-angled edges of the second triangular plate 16 and the third triangular plate 18 are detachably connected with the second panel 2, so that the size of the gap between the first side plate 7 and the second side plate 8 (i.e. the size of the opening of the prefabricated culvert side wall component 200) can be adjusted according to the size of the prefabricated culvert side wall component 200, and the application range of the prefabricated culvert side wall component is expanded. In this embodiment, the screw and the screw hole are matched to realize detachable connection.
Further, an I-shaped steel 19 is fixedly arranged between the first panel 1 and the second panel 2, and the vertical part of the I-shaped steel 19 is positioned between the two rows of the first through holes 4. The I-steel 19 is used as a component for distributing force, so that the whole stress of the device 100 is uniform, the steel plates such as the first panel 1, the second panel 2, the first side plate 7 and the second side plate 8 are reduced to generate larger deformation due to overlarge bearing force, and the prefabricated culvert side wall component 200 is prevented from shaking in the hoisting process.
Further, the one end of the second panel 2 is kept away from to first curb plate 7 and second curb plate 8 all is connected with the swash plate 20 that leans out the setting to form a great opening between first curb plate 7 and the second curb plate 8, be convenient for with the quick cover of device 100 is on prefabricated culvert side wall component 200. The notch 11 is opened on the sloping plate 20.
The hoisting method by using the device for correcting the eccentric hoisting of the prefabricated culvert side wall component comprises the following steps:
(1) a first rod piece 5 penetrates through the first through hole 4, the first rod piece 5 is fixed on the support plate 3 through a bolt, and one end of a lifting rope 6 penetrates through the third through hole 15 and then is fixed on the first rod piece 5;
(2) after the device 100 is vertically hoisted by a crane through a hoisting rope 6, the device 100 is sleeved on the prefabricated culvert side wall component 200 by utilizing a gap between a first side plate 7 and a second side plate 8;
(3) simultaneously penetrating a second rod 12 through the second through hole 10 on the vertical plate 9 and the hanging ring on the prefabricated culvert side wall component 200 to connect the device 100 and the prefabricated culvert side wall component 200 to form a combined whole;
(4) and then, hoisting the combined whole formed by connecting the device 100 and the prefabricated culvert side wall component 200, wherein the hoisting angle alpha is larger than 60 degrees during hoisting, and the second side plate 8 of the device 100 is tightly attached to the prefabricated culvert side wall component 200, so that the prefabricated culvert side wall component 200 can be ensured to swing randomly in the hoisting process, and the hoisting point, the gravity center of the prefabricated culvert side wall component and the gravity center of the combined whole are on the same vertical line (as shown in figure 4).
In the hoisting process, the device 100 and the prefabricated culvert side wall component 200 are fixedly connected to form a whole, and the prefabricated culvert side wall component 200 is vertically hoisted, so that the hoisting point, the gravity center of the prefabricated side wall and the gravity center of the combined whole are on the same vertical line (as shown in figure 4), and the problem of inaccurate eccentric hoisting positioning is solved. According to the invention, the circular first rod piece 5 is arranged, so that one end of the lifting rope 6 is fixed on the circular first rod piece 5, rather than directly binding the lifting rope 6 on the supporting plate 3 or the first panel 1, the shearing force applied to the steel wire rope at the connecting part is reduced, and the service life of the steel wire rope is prolonged. And in the hoisting process, the hoisting angle alpha is larger than 60 degrees, so that the horizontal shearing force of the hoisting rope 6 is reduced, the service life of the hoisting rope 6 is further prolonged, and the safety of the hoisting process of the prefabricated culvert side wall component 200 is improved. Be used for consolidating first rectangular plate 13 through the setting, first set-square 14, second set-square 16, second rectangular plate 17, third set-square 18 etc. make device 100 form wholly, use I-steel 19 as the component of main distribution power, make the whole atress of device 100 even, reduce steel sheets such as first panel 1, second panel 2, first curb plate 7, second curb plate 8 and vertical board 9 because the too big great deformation of production of load, avoid prefabricated culvert side wall component 200 to take place to rock at hoist and mount process. Therefore, the method corrects the eccentric hoisting problem of the prefabricated culvert side wall component 200, has simple operation and few hoisting steps, and improves the construction efficiency of the prefabricated culvert.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (9)
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| CN202011356719.0A CN112320561B (en) | 2020-11-27 | 2020-11-27 | A device and method for correcting eccentric hoisting of prefabricated culvert side wall components |
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| CN202011356719.0A CN112320561B (en) | 2020-11-27 | 2020-11-27 | A device and method for correcting eccentric hoisting of prefabricated culvert side wall components |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212659A (en) * | 2021-12-03 | 2022-03-22 | 中铁四局集团第二工程有限公司 | Construction method for hoisting prefabricated part |
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| CN203845700U (en) * | 2014-05-30 | 2014-09-24 | 中国化学工程第三建设有限公司 | Self-balancing iron carrying pole for hoisting |
| KR20160008694A (en) * | 2014-07-14 | 2016-01-25 | 삼성물산 주식회사 | Apparatus for simultaneously lifting slab and construction method thereof |
| CN109205463A (en) * | 2018-09-29 | 2019-01-15 | 合肥工业大学 | A kind of hanging apparatus and hanging method of prefabricated panel |
| CN110668301A (en) * | 2019-09-20 | 2020-01-10 | 中国五冶集团有限公司 | A kind of precast concrete slab hoisting method and hoisting accessories |
| CN211283461U (en) * | 2019-12-09 | 2020-08-18 | 中铁七局集团第三工程有限公司 | Detachable prefabricated assembled box culvert rotary lifting ring with variable lifting points |
| CN213738179U (en) * | 2020-11-27 | 2021-07-20 | 广西路桥工程集团有限公司 | Device for correcting eccentric hoisting of prefabricated culvert side wall component |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212659A (en) * | 2021-12-03 | 2022-03-22 | 中铁四局集团第二工程有限公司 | Construction method for hoisting prefabricated part |
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