CN222138451U - Hoisting structure suitable for single-baffle steel box girder - Google Patents
Hoisting structure suitable for single-baffle steel box girder Download PDFInfo
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- CN222138451U CN222138451U CN202420016456.6U CN202420016456U CN222138451U CN 222138451 U CN222138451 U CN 222138451U CN 202420016456 U CN202420016456 U CN 202420016456U CN 222138451 U CN222138451 U CN 222138451U
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- steel box
- plate
- box girder
- lifting
- shoulder pole
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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
- 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
- B66C1/62—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 comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—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 comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
本申请涉及一种适用于单隔板钢箱梁的吊装结构，包括：单隔板钢箱梁，该单隔板钢箱梁内安装有小加劲板，所述单隔板钢箱梁的顶板连接有位于横隔板正上方的钢梁临时吊点和位于小加劲板正上方的拽拉牛腿；钢箱梁吊具，该钢箱梁吊具包括短扁担梁，所述短扁担梁与所述钢梁临时吊点连接，所述短扁担梁与拽拉牛腿之间连接有导链。本申请相比于原吊具通过主梁进行钢梁多点起吊的方式，改装后的新吊具实现了从四点吊装到两点吊装的快速改制。若单隔板钢箱梁采用四点起吊，须有四个吊耳及在单隔板钢箱梁内新增两道横隔板，而采用双吊耳吊装时，吊耳直接设置在位于横隔板上的顶板，不仅减少了钢梁内部加固钢材的用量，且提高了起吊施工的效率。
The present application relates to a lifting structure suitable for a single-diaphragm steel box girder, comprising: a single-diaphragm steel box girder, a small stiffening plate is installed in the single-diaphragm steel box girder, the top plate of the single-diaphragm steel box girder is connected with a temporary lifting point of the steel beam located directly above the transverse diaphragm and a pulling bracket located directly above the small stiffening plate; a steel box girder lifting device, the steel box girder lifting device comprises a short shoulder pole beam, the short shoulder pole beam is connected to the temporary lifting point of the steel beam, and a guide chain is connected between the short shoulder pole beam and the pulling bracket. Compared with the original lifting device that lifts the steel beam at multiple points through the main beam, the modified new lifting device in the present application realizes a rapid transformation from four-point lifting to two-point lifting. If the single-diaphragm steel box girder adopts four-point lifting, four lifting ears and two new transverse diaphragms are required in the single-diaphragm steel box girder. When double lifting ears are used for lifting, the lifting ears are directly set on the top plate located on the transverse diaphragm, which not only reduces the amount of reinforcing steel inside the steel beam, but also improves the efficiency of the lifting construction.
Description
Technical Field
The application relates to the technical field of bridge engineering construction, in particular to a hoisting structure suitable for a single-partition steel box girder.
Background
With the rise of large-scale hoisting equipment, the steel bridge construction generally adopts a large-section assembly method, and the bridge of the large section is obvious due to the expansion with heat and contraction with cold effect, so that the length of a closure section is often shorter for ensuring the smooth closure of the steel girder section, and the condition that a single-baffle steel box girder section is easy to appear in the closure section is also caused.
The prior large hoisting equipment lifts the steel girder segment by the lifting appliance, the lifting appliance is arranged between the crane and the object to be lifted, the lug plates at the top and the bottom of the lifting appliance are respectively connected with the lifting hook and the steel girder lug plates, and in order to save the steel consumption of the crane and the lifting appliance, the steel girder lug plates are often arranged on the top plate at the positions of the transverse partition plates, and the steel girder segment with a plurality of transverse partition plates can be stably lifted due to the fact that the stress limit of the transverse partition plates is higher, and the lifting appliance is connected with the lifting lug on the end partition plate.
However, when the existing hoisting equipment is applied to a single-partition steel box girder segment, the defect that if all lug plates of the single-partition steel box girder are arranged on a top plate at the same partition position, the risk of instability and damage of a system caused by local deformation occurs when the hoisting equipment is hoisted because the gravity center of stress is concentrated on the part of the steel box girder.
In addition, after the single-baffle steel box girder segment is hoisted to a designed elevation, the alignment posture of the steel girder is difficult to adjust because the prior hoisting tool is generally not provided with a device for specially adjusting the posture, which makes hoisting construction more difficult. If a multi-partition structure is formed by adding a new diaphragm plate in the steel beam section and an ear plate is arranged on the top plate of the diaphragm plate, the lifting problem is solved, and adverse factors such as larger size of the new diaphragm plate, numerous stiffening plate members, heavy weight and the like are caused, so that the material cost is increased, and the construction period is delayed.
Disclosure of Invention
The embodiment of the application provides a hoisting structure suitable for a single-baffle steel box girder, which aims at solving the problems of how to meet the stress requirement of hoisting the single-baffle steel box girder and save the time and the material cost of construction on the basis of ensuring the hoisting safety and retaining part of the original hoisting tool structure aiming at the single-baffle steel box girder hoisting construction of a closure section of a steel bridge in the related art.
The embodiment of the application provides a hoisting structure suitable for a single-baffle steel box girder, which comprises the following components:
The steel box girder with the single partition plate is characterized in that a small stiffening plate is arranged in the steel box girder with the single partition plate, and a top plate of the steel box girder with the single partition plate is connected with a steel girder temporary lifting point positioned right above a transverse partition plate and a dragging bracket positioned right above the small stiffening plate;
the steel box girder lifting appliance comprises a short shoulder pole girder, wherein the short shoulder pole girder is connected with a temporary lifting point of the steel girder, and a guide chain is connected between the short shoulder pole girder and a dragging bracket.
In some embodiments, two small stiffening plates are arranged, the two small stiffening plates are fixed on the inner wall of the top plate of the single-partition steel box girder, and the two small stiffening plates are respectively positioned in the front-back direction of the diaphragm plate.
In some embodiments, the guide chain is a manual guide chain or an electric chain block, one end of the guide chain is connected with the short shoulder pole beam, the other end of the guide chain is connected with the dragging bracket, and the guide chain adjusts the hoisting posture of the single-partition steel box girder by changing the length of the guide chain.
In some embodiments, the short shoulder pole beam comprises a short shoulder pole beam main beam, an upper lug plate and a lower lug plate, wherein the upper lug plate is provided with a pair and is positioned at the upper part of the short shoulder pole beam main beam, and the lower lug plate is provided with a pair and is positioned at the lower part of the short shoulder pole beam main beam.
In some embodiments, the short shoulder pole beam further comprises an upper ear plate stiffener connected between the upper ear plate and the short shoulder pole beam main beam and a lower ear plate stiffener connected between the lower ear plate and the short shoulder pole beam main beam.
In some embodiments, the steel box girder lifting appliance is further connected with a lifting appliance main lug plate, the lifting appliance main lug plate is connected with the steel box girder lifting appliance through a lifting appliance main pin shaft, and the distance between the lifting appliance main lug plates is larger than the distance between the upper lug plates of the short shoulder pole girders.
In some embodiments, the spacing between the temporary suspension points of the steel beams is equal to the spacing between the lower ear plates of the short shoulder pole beams.
In some embodiments, the small stiffening plates comprise longitudinal stiffening plates, transverse stiffening plates and bottom stiffening plates, the longitudinal stiffening plates are arranged on the inner walls of the top plate in front of and behind the transverse partition plates of the single-partition steel box girder, the transverse stiffening plates are arranged below the longitudinal stiffening plates, and the bottom stiffening plates are arranged on two sides of the joint of the longitudinal stiffening plates and the top plate.
In some embodiments, the pulling brackets include a pulling Niu Tuier plate and a pulling bracket stiffener plate disposed on the single bulkhead steel box girder and in the same longitudinal plane as the longitudinal stiffener plate, the pulling bracket stiffener plate being located on both sides of the pulling bracket stiffener plate and in the same longitudinal plane as the bottom stiffener plate.
In some embodiments, the small stiffening plates, the steel beam temporary hanging points and the dragging brackets are welded with the single-baffle steel box girder in an arc welding or submerged arc welding mode.
Compared with the prior art, the hoisting structure suitable for the single-baffle steel box girder has the beneficial effects that:
1. The application is suitable for the hoisting structure of the single-baffle steel box girder, utilizes the short shoulder pole girder which can be processed in the construction site, and is refitted to the existing hoisting tool, compared with the mode that the original hoisting tool carries out multi-point hoisting of the steel girder through the main girder, the refitted new hoisting tool realizes the rapid reconstruction from four-point hoisting to two-point hoisting. If the single-baffle steel box girder adopts four-point hoisting, four lifting lugs are needed and two transverse baffles are newly added in the single-baffle steel box girder, and when double-lifting lug hoisting is adopted, the lifting lugs are directly arranged on the top plate positioned on the transverse baffles, so that the consumption of reinforced steel in the steel girder is reduced, and the hoisting construction efficiency is improved.
2. The application is suitable for a hoisting structure of a single-baffle steel box girder, and small stiffening plates are welded on the inner walls of a top plate in front of and behind a diaphragm of the single-baffle steel box girder so as to strengthen the single-baffle steel box girder.
3. Compared with the prior art that the lifting appliance adopts a single telescopic oil cylinder, the single-baffle steel box girder is fixedly connected by the guide chains, so that the single-baffle steel box girder is stabilized, the non-torsion effect is ensured, and the fine adjustment function on the posture of the single-baffle steel box girder can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a prior art spreader;
Fig. 2 is a front view of a lifting appliance structure suitable for a single-partition steel box girder according to an embodiment of the present application;
FIG. 3 is a side view of a spreader structure for a single-deck steel box girder according to an embodiment of the present application;
fig. 4 is a schematic structural view of a short shoulder pole beam according to an embodiment of the present application;
fig. 5 is a schematic cross-sectional structure of a short shoulder pole beam according to an embodiment of the present application;
FIG. 6 is a schematic view of a connection between a small stiffening plate and a pulling bracket and a top plate according to an embodiment of the present application;
FIG. 7 is a schematic cross-sectional view of a small stiffener and a pulling bracket according to an embodiment of the present application.
Reference numerals:
1. Wire rope, 2, lifting appliance main lug plate, 3, lifting appliance girder, 4, telescopic oil cylinder, 5, pulling plate, 6, lifting appliance main pin shaft, 7, short shoulder pole girder, 71, short shoulder pole girder, 72, upper lug plate, 73, lower lug plate, 8, steel girder temporary lifting point, 9, small stiffening plate, 91, longitudinal stiffening plate, 92, transverse stiffening plate, 93, bottom stiffening plate, 10, pulling bracket, 101, pulling Niu Tuier plate, 102, pulling bracket stiffening plate, 11, guide chain, 12, single-partition steel box girder.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides a hoisting structure suitable for a single-baffle steel box girder, which can solve the problems of how to meet the stress requirement of hoisting the single-baffle steel box girder and save the time and the material cost of construction on the basis of ensuring the hoisting safety and retaining part of the original hoisting tool structure aiming at the single-baffle steel box girder hoisting construction of a closure section of a steel bridge in the related art.
Referring to fig. 2 and 3, an embodiment of the present application provides a hoisting structure suitable for a single-diaphragm steel box girder, where the hoisting structure is mainly applied to hoisting construction of the single-diaphragm steel box girder after reasonably retrofitting an existing hoisting tool (hereinafter abbreviated as an original hoisting tool, including a steel wire rope 1, a hoisting tool main ear plate 2, a hoisting tool main beam 3, a telescopic cylinder 4, a pulling plate 5 and a hoisting tool main pin 6) shown in fig. 1 (hereinafter abbreviated as a new hoisting tool), and the hoisting structure includes:
And a single-baffle steel box girder 12, wherein a small stiffening plate 9 is arranged in the single-baffle steel box girder 12, and the small stiffening plate 9 is arranged along the longitudinal direction of the single-baffle steel box girder 12 to strengthen the local structure of the single-baffle steel box girder 12. The top plate of the single-diaphragm steel box girder 12 is connected with a steel girder temporary lifting point 8 positioned right above a diaphragm (not shown in the figure) and a dragging bracket 10 positioned right above a small stiffening plate 9.
The steel beam temporary suspension points 8 are preferably, but not limited to, two, and the two steel beam temporary suspension points 8 are disposed in a lateral direction of the single-deck steel box girder 12 to form two fixed suspension points at the top of the single-deck steel box girder 12. The pulling brackets 10 are preferably, but not limited to, two, and the two pulling brackets 10 are disposed along the longitudinal direction of the single deck steel box girder 12. The connection line between the two dragging brackets 10 and the connection line between the two steel beam temporary hanging points 8 are crossed to form a cross-shaped structure.
The steel box girder lifting appliance comprises a short shoulder pole girder 7, wherein the short shoulder pole girder 7 is connected with a temporary steel girder lifting point 8, a guide chain 11 is connected between the short shoulder pole girder 7 and a pulling bracket 10, the bottom of the short shoulder pole girder 7 is connected with the temporary steel girder lifting point 8, the top of the short shoulder pole girder 7 is connected with a lifting appliance main lug plate 2 through a lifting appliance main pin shaft 6, and the lifting appliance main lug plate 2 is connected with lifting equipment.
After the single-baffle steel box girder 12 is lifted to a set height by the lifting equipment through the steel box girder lifting tool, the single-baffle steel box girder 12 is stabilized by utilizing the guide chain 11 connected between the short shoulder pole girder 7 and the dragging bracket 10, the effect that the single-baffle steel box girder 12 is not twisted in the lifting process is ensured, and the function of fine tuning the posture of the single-baffle steel box girder 12 can be realized.
In the process of hoisting the single-baffle steel box girder 12 in concrete construction:
After the main pin shaft 6 of the lifting appliance on the main lug plate 2 of the lifting appliance is detached first, all the parts below the main lug plate 2 of the lifting appliance are detached (in the embodiment, the parts to be detached comprise the main girder 3, the pulling plate 5 and the telescopic oil cylinder 4 of the lifting appliance of the original lifting appliance).
Then the short shoulder pole beam 7 is processed on site, the connecting hole of the lifting appliance main lug plate 2 is aligned with the connecting hole of the upper lug plate 72 of the short shoulder pole beam 7, and the short shoulder pole beam 7 is installed at the bottom of the lifting appliance main lug plate 2 by using the lifting appliance main pin shaft 6 to penetrate the connecting hole and then be fixed.
And then, welding small stiffening plates 9 on the inner walls of the top plate before and after the diaphragm plates of the single-diaphragm steel box girder 12 to be hoisted so as to meet the stress requirement of hoisting the single-diaphragm steel box girder 12, and welding a steel girder temporary hoisting point 8 and a dragging corbel 10 on the top of the single-diaphragm steel box girder 12 so as to be used for subsequent sling connection.
Then, the connecting holes of the lower lug plates 73 of the short shoulder pole beams 7 are aligned with the connecting holes of the temporary steel beam hanging points 8, and the connecting holes are penetrated by the pin shafts at the same time and then fixed, so that the single-partition steel box beam 12 is connected to the bottom of the steel box beam hanger.
And finally, the guide chain 11 passes through the main pin shaft 6 of the lifting appliance, and two ends of the guide chain 11 are respectively and fixedly connected with two dragging brackets 10 at the top of the single-partition steel box girder 12, so that the installation of the guide chain 11 is completed.
The application is suitable for the hoisting structure of the single-baffle steel box girder, utilizes the short shoulder pole girder 7 which can be processed in the construction site, and is refitted to the existing hoisting tool, compared with the mode that the original hoisting tool performs multi-point hoisting of the steel girder through the main girder, the refitted new hoisting tool realizes the rapid reconstruction from four-point hoisting to two-point hoisting.
If the single-baffle steel box girder 12 is lifted by four points, four lifting lugs are needed and two transverse baffles are newly added in the single-baffle steel box girder 12, and when the double-lifting lug is used for lifting, the lifting lugs are directly arranged on the top plate positioned on the transverse baffles, so that the consumption of reinforced steel in the steel girder is reduced, and the lifting construction efficiency is improved.
The application is suitable for a hoisting structure of a single-baffle steel box girder, and small stiffening plates 9 are welded on the inner walls of a top plate in front of and behind a diaphragm of the single-baffle steel box girder 12 so as to strengthen the single-baffle steel box girder 12.
The application fully utilizes the bearing capacity of the original diaphragm of the single-diaphragm steel box girder 12 on the basis of not adding a large amount of reinforced steel materials to meet the stress requirement of hoisting, thereby saving the material cost.
Compared with the prior art that the lifting appliance adopts a single telescopic oil cylinder, the single-baffle steel box girder 12 is fixedly connected by the guide chain 11, so that the single-baffle steel box girder 12 is stabilized, the torsion is not guaranteed, and the fine adjustment of the posture of the single-baffle steel box girder 12 can be realized.
In some alternative embodiments, referring to fig. 2 and 3, the embodiment of the application provides a hoisting structure suitable for a single-partition steel box girder, two small stiffening plates 9 of the hoisting structure are arranged, the two small stiffening plates 9 are fixed on the inner wall of the top plate of the single-partition steel box girder 12, and the two small stiffening plates 9 are respectively positioned in the front-rear direction of a diaphragm.
In order to strengthen the structural strength of the joint of the pulling bracket 10 and the single-partition steel box girder 12, in the embodiment of the application, two small stiffening plates 9 are respectively arranged at the positions of the pulling bracket 10 on the single-partition steel box girder 12, so that the single-partition steel box girder 12 cannot be deformed when the guide chain 11 pulls the pulling bracket 10.
In some alternative embodiments, referring to fig. 2 and 3, embodiments of the present application provide a hoisting structure suitable for single-deck steel box girders, the guide chain 11 of the hoisting structure being a manual guide chain or an electric chain block. One end of the guide chain 11 is connected with the main pin shaft 6 of the lifting appliance on the short shoulder pole beam 7, the other end of the guide chain is connected with the dragging bracket 10, the guide chain 11 adjusts the lifting posture of the single-baffle steel box beam 12 by changing the length of the guide chain, stabilizes the single-baffle steel box beam 12 and ensures that the single-baffle steel box beam 12 does not twist in the lifting process.
In some alternative embodiments, referring to fig. 4 and 5, embodiments of the present application provide a lifting structure suitable for a single-bulkhead steel box girder, the short shoulder pole beam 7 of which comprises a short shoulder pole beam main beam 71, an upper ear plate 72, and a lower ear plate 73. The upper ear plates 72 are provided with a pair and are located at the upper portion of the short shoulder-pole girder 71, and the lower ear plates 73 are provided with a pair and are located at the lower portion of the short shoulder-pole girder 71.
The short shoulder pole beam 7 further includes an upper ear plate stiffener connected between the upper ear plate 72 and the short shoulder pole beam main beam 71, and a lower ear plate stiffener connected between the lower ear plate 73 and the short shoulder pole beam main beam 71.
In the embodiment, one short shoulder pole girder 71 is processed, two upper ear plates 72 are processed, four lower ear plates 73 are processed, two upper ear plates 72 are processed, and eight lower ear plates 73 are processed.
At least two upper lug plates 72 are welded on the top surface of the short shoulder pole girder 71, an upper lug plate stiffening plate is welded between every two upper lug plates 72, at least four lower lug plates 73 are welded on the bottom surface of the short shoulder pole girder 71, every two lower lug plates 73 form a group, and lower lug plate stiffening ribs are welded on the plate surfaces of the lower lug plates 73.
In some alternative embodiments, referring to fig. 2 and 3, the embodiment of the application provides a hoisting structure suitable for a single-partition steel box girder, a main lug plate 2 of the hoisting structure is further connected to a steel box girder hoisting tool, the main lug plate 2 of the hoisting structure is connected with the steel box girder hoisting tool through a main pin shaft 6 of the hoisting tool, and the distance between the main lug plates 2 of the hoisting tool is larger than the distance between two upper lug plates 72 of a short shoulder pole beam 7. The distance between the two steel beam temporary suspension points 8 is equal to the distance between the two groups of lower lug plates 73 of the short shoulder pole beam 7, and the two groups of lower lug plates are connected with each other by a pin shaft.
In some alternative embodiments, referring to fig. 6 and 7, embodiments of the present application provide a lifting structure for a single-deck steel box girder, the small stiffeners 9 of the lifting structure comprising longitudinal stiffeners 91, transverse stiffeners 92, and bottom stiffeners 93. The longitudinal stiffening plates 91 are arranged on the inner walls of the top plate in front of and behind the transverse partition plates of the single-partition plate steel box girder 12, the transverse stiffening plates 92 are arranged below the longitudinal stiffening plates 91, and the bottom stiffening plates 93 are arranged on two sides of the joint of the longitudinal stiffening plates 91 and the top plate. The welding of the small stiffening plates 9 strengthens the structure of the steel beam, so that the stress limit of the internal tensile resistance and shearing resistance of the steel beam is improved, and the stress requirement of the single-baffle steel box girder is met.
The pulling bracket 10 includes a pulling Niu Tuier plate 101 and a pulling bracket stiffener 102, the pulling Niu Tuier plate 101 is disposed on the single-bulkhead steel box girder 12 and is in the same longitudinal plane as the longitudinal stiffener 91, and the pulling bracket stiffener 102 is disposed on two sides of the pulling Niu Tuier plate 101 and is in the same longitudinal plane as the bottom stiffener 93. The pulling bracket stiffening plate 102 can play a role in increasing the transverse rigidity of the pulling Niu Tuier plate 101 and ensuring stability.
The welding mode of the small stiffening plate 9, the steel beam temporary lifting point 8 and the dragging bracket 10 can be selected from arc welding or submerged arc welding, but is not limited to the welding mode, and the targeted welding can be performed according to the welding mode well known to the person skilled in the art, so that the small stiffening plate 9, the steel beam temporary lifting point 8 and the dragging bracket 10 are stably connected and are suitable for subsequent hoisting construction.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intervening medium, or may be in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. Hoisting structure suitable for single baffle steel case roof beam, characterized by includes:
The steel box girder (12) with the single partition plate, wherein a small stiffening plate (9) is arranged in the steel box girder (12) with the single partition plate, and the top plate of the steel box girder (12) with the single partition plate is connected with a steel girder temporary lifting point (8) positioned right above the transverse partition plate and a dragging bracket (10) positioned right above the small stiffening plate (9);
The steel box girder lifting appliance comprises a short shoulder pole girder (7), wherein the short shoulder pole girder (7) is connected with a temporary steel girder lifting point (8), and a guide chain (11) is connected between the short shoulder pole girder (7) and a dragging bracket (10).
2. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 1, wherein:
The small stiffening plates (9) are arranged in two, the two small stiffening plates (9) are fixed on the inner wall of the top plate of the single-partition steel box girder (12), and the two small stiffening plates (9) are respectively located in the front-back direction of the diaphragm plate.
3. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 1, wherein:
The guide chain (11) is a manual guide chain or an electric chain block, one end of the guide chain (11) is connected with the short shoulder pole beam (7), the other end of the guide chain is connected with the dragging bracket (10), and the guide chain (11) is used for adjusting the hoisting posture of the single-baffle steel box beam (12) by changing the length of the guide chain.
4. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 1, wherein:
the short shoulder pole beam (7) comprises a short shoulder pole beam main beam (71), an upper lug plate (72) and a lower lug plate (73), wherein the upper lug plate (72) is provided with a pair of lug plates and is positioned on the upper portion of the short shoulder pole beam main beam (71), and the lower lug plate (73) is provided with a pair of lug plates and is positioned on the lower portion of the short shoulder pole beam main beam (71).
5. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 4, wherein:
The short shoulder pole beam (7) further comprises an upper lug plate stiffening plate and a lower lug plate stiffening rib, the upper lug plate stiffening plate is connected between the upper lug plate (72) and the short shoulder pole beam main beam (71), and the lower lug plate stiffening rib is connected between the lower lug plate (73) and the short shoulder pole beam main beam (71).
6. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 4, wherein:
The steel box girder lifting appliance is characterized in that the steel box girder lifting appliance is also connected with a lifting appliance main lug plate (2), the lifting appliance main lug plate (2) is connected with the steel box girder lifting appliance through a lifting appliance main pin shaft (6), and the distance between the lifting appliance main lug plates (2) is larger than the distance between the upper lug plates (72) of the short shoulder pole girders (7).
7. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 4, wherein:
The distance between the temporary steel beam hanging points (8) is equal to the distance between the lower lug plates (73) of the short shoulder pole beams (7).
8. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 1, wherein:
The small stiffening plate (9) comprises a longitudinal stiffening plate (91), transverse stiffening plates (92) and bottom stiffening plates (93), wherein the longitudinal stiffening plate (91) is arranged on the inner wall of the top plate of the cross slab of the single-partition steel box girder (12) in front of and behind, the transverse stiffening plates (92) are arranged below the longitudinal stiffening plate (91), and the two sides of the joint of the longitudinal stiffening plate (91) and the top plate are provided with the bottom stiffening plates (93).
9. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 8, wherein:
The dragging corbel (10) comprises a dragging Niu Tuier plate (101) and a dragging corbel stiffening plate (102), the dragging Niu Tuier plate (101) is arranged on the single-partition steel box girder (12) and is located in the same longitudinal plane with the longitudinal stiffening plate (91), and the dragging corbel stiffening plate (102) is located on two sides of the dragging Niu Tuier plate (101) and is located in the same longitudinal plane with the bottom stiffening plate (93).
10. A hoisting structure for a single-bulkhead steel box girder as claimed in claim 8, wherein:
The small stiffening plate (9), the steel beam temporary lifting point (8) and the dragging corbel (10) are welded and connected with the single-baffle steel box girder (12) in an arc welding or submerged arc welding mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023100224904 | 2023-01-07 | ||
| CN202310022490.4A CN116253230A (en) | 2023-01-07 | 2023-01-07 | Method suitable for hoisting single-partition steel box girder |
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| Publication Number | Publication Date |
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| CN222138451U true CN222138451U (en) | 2024-12-10 |
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|---|---|---|---|
| CN202310022490.4A Pending CN116253230A (en) | 2023-01-07 | 2023-01-07 | Method suitable for hoisting single-partition steel box girder |
| CN202420016456.6U Active CN222138451U (en) | 2023-01-07 | 2024-01-03 | Hoisting structure suitable for single-baffle steel box girder |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202310022490.4A Pending CN116253230A (en) | 2023-01-07 | 2023-01-07 | Method suitable for hoisting single-partition steel box girder |
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| CN117328356A (en) * | 2023-10-09 | 2024-01-02 | 武船重型工程股份有限公司 | A method for installing box beam reinforcements |
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- 2023-01-07 CN CN202310022490.4A patent/CN116253230A/en active Pending
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| CN116253230A (en) | 2023-06-13 |
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