CN112813851A - Hanging system before basket is hung in bridge construction - Google Patents
Hanging system before basket is hung in bridge construction Download PDFInfo
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- CN112813851A CN112813851A CN202110175477.3A CN202110175477A CN112813851A CN 112813851 A CN112813851 A CN 112813851A CN 202110175477 A CN202110175477 A CN 202110175477A CN 112813851 A CN112813851 A CN 112813851A
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- hanging
- hanging basket
- basket
- fastener
- suspender
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a hanging system before a hanging basket in bridge construction, which comprises a hanging basket hanging rod, wherein the hanging basket hanging rod is a straight rod and is provided with a top threaded section and a bottom threaded section; the bottom threaded section is in threaded connection with a second fastener, a suspender converter is hung on the second fastener, and the bottom of the suspender converter is hinged with the lower distribution beam. When the hanging system before hanging the basket uses, will hang the basket jib and pass first fastener, its upper end is through fastener locking, and the lower extreme passes through the jib converter and passes through the pin with the gallows and articulate, can guarantee effectively to hang the perpendicular atress all the time of basket jib, makes to hang basket jib atress more reasonable, and the installation operation is more convenient, has successfully solved the potential safety quality hazard problem that appears in the traditional preceding hanging basket jib work progress, is showing the work efficiency who has improved hanging the basket construction.
Description
Technical Field
The invention belongs to the technical field of bridge construction equipment, and particularly relates to a front hanging system of a hanging basket for bridge construction.
Background
The hanging basket construction refers to the operation of segmenting a cantilever on site by adopting a hanging basket method when a cantilever beam bridge is poured. It does not need to erect a bracket and use a large crane. Compared with other methods, the construction of the hanging basket has the advantages of light structure, simple and convenient splicing, no pressure, heavy weight and the like.
With the rapid development of national economy, continuous rigid frame bridges and continuous bridge suspension construction technologies are more and more widely applied. In hanging basket cantilever work progress, hang the preceding basket jib of basket and often adopt finish rolling screw-thread steel as hanging the basket jib, be connected with lower distribution beam, lower distribution beam bottom surface is the curved surface more, is connected the straightness that hangs down that hardly guarantees to hang the basket jib through hanging the basket jib and directly being connected with lower distribution beam, and then can cause to hang the basket jib and receive to turn round because finish rolling screw-thread steel is brittle material, produces the potential safety hazard easily.
Disclosure of Invention
The invention aims to provide a hanging basket front hanging system for bridge construction, which is used for ensuring that a hanging basket hanging rod is directly connected with a lower distribution beam and always bears vertical downward force in the construction process of the front hanging basket hanging rod, ensuring that the verticality of the hanging basket hanging rod is stressed in balance and eliminating potential safety hazards.
The invention adopts the following technical scheme: a suspension system before a hanging basket for bridge construction comprises a hanging basket suspension rod, wherein the hanging basket suspension rod is a straight rod and is provided with a top threaded section and a bottom threaded section, the top threaded section is in threaded connection with a first fastener, and the upper part of the hanging basket suspension rod is used for penetrating through and being suspended on a front upper cross beam and an upper distribution beam of the hanging basket through the first fastener;
a second fastening piece is connected to the threaded section of the bottom in a threaded manner, a suspender converter is hung on the second fastening piece, and the bottom of the suspender converter is hinged with the lower distribution beam;
the suspender converter comprises a seat plate, wherein the seat plate is provided with a first through hole for the basket hanging suspender to pass through;
two ear plates are oppositely arranged below the seat plate at intervals;
the lower ends of the two lug plates are respectively positioned at two sides of the lower distribution beam, the bottoms of the two lug plates are respectively provided with a transverse second through hole, and a third through hole is arranged on the lower distribution beam at a position corresponding to the second through hole;
pins are arranged in the second through hole and the third through hole in a penetrating manner and are used for hinging the lower distribution beam to the two lug plates.
Furthermore, the first fastener and the second fastener respectively comprise an anchor backing plate and a nut which are sleeved on the hanging basket hanging rod;
the nut in the first fastener is positioned above the anchor backing plate;
the nut in the second fastener is located below the anchor backing plate.
Furthermore, the anchor backing plate is a flat plate, and the stress surface of the anchor backing plate is tightly attached to the upper surface of the upper distribution beam or the lower surface of the bottom plate.
Further, the threads of the top thread section and the bottom thread section are both trapezoidal threads, and the nut 5 has an internal thread matching the trapezoidal threads.
Further, the hanging basket suspender is a solid cylindrical bar.
Further, the anchor backing plate is a flat plate with an inner circle and an outer square.
Further, at least two rotating handles are arranged on the periphery of the nut.
Furthermore, a gripping hole is formed on the rotating handle.
The invention has the beneficial effects that: when the hanging basket front hanging system is used, a hanging basket suspender penetrates through and is hung on the hanging basket front upper cross beam and the upper distribution beam, the upper end of the hanging basket suspender is locked through a fastener to avoid falling, the lower end of the hanging basket suspender is hinged with the hanging bracket through a suspender converter through a pin, and the hanging basket suspender can be effectively guaranteed to be always vertically stressed by adopting a hinged hanging bracket structure, so that the hanging basket suspender is more reasonably stressed and more convenient to install and operate, the problem of potential safety quality hazards in the traditional front hanging basket suspender construction process is successfully solved, the working efficiency of hanging basket construction is remarkably improved, and good effect is achieved in the hanging basket construction aspect.
Drawings
FIG. 1 is a front view of a front suspension system of a hanging basket of the present invention;
FIG. 2 is a schematic view of a hanger bar converter hinged to a lower distribution beam of a front hanging system of a hanging basket according to the present invention;
FIG. 3 is a top view of a hanger bar converter of a front suspension system of a hanging basket of the present invention;
fig. 4 is a schematic structural diagram of a nut in an embodiment of the invention.
Wherein: 1. an ear plate; 2. a seat plate; 3. a pin; 4. an anchor backing plate; 5. a nut; 6. an upper distribution beam; 7. a front upper cross beam; 8. a cradle boom; 9. a lower distribution beam; 10. a front lower cross beam; 11. rotating the handle; 12. a grasping aperture.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention discloses a hanging basket front hanging system for bridge construction, which comprises a hanging basket hanging rod 8, wherein the hanging basket hanging rod 8 is a straight rod and is provided with a top threaded section and a bottom threaded section, the top threaded section of the hanging basket hanging rod 8 is in threaded connection with a first fastener, and the upper part of the hanging basket hanging rod 8 is used for penetrating through and hanging on a front upper cross beam 7 and an upper distribution beam 6 of a hanging basket; threaded connection has the second fastener on the bottom screw thread section, hangs on the second fastener and is equipped with the jib converter, and jib converter bottom is articulated through pin 3 with lower distributive girder 9, and the effectual straightness that hangs down of hanging the basket jib of having guaranteed of hinge structure makes things convenient for the construction operation simultaneously.
When the hanging basket front hanging system is used, a hanging basket suspender penetrates through and is hung on the hanging basket front upper cross beam and the upper distribution beam, the upper end of the hanging basket suspender is locked through a fastener to avoid falling, the lower end of the hanging basket suspender is hinged with the hanging bracket through the suspender converter, and the hanging basket suspender can be effectively guaranteed to be always vertically stressed by adopting a hinged hanging bracket structure, so that the hanging basket suspender is more reasonably stressed and more convenient to install and operate, the problem of potential safety quality hazards in the traditional front hanging basket suspender construction process is successfully solved, the working efficiency of hanging basket construction is remarkably improved, and good effect is achieved in hanging basket construction.
In this embodiment, the pannier hanger bar 8 is a solid cylindrical bar, cylinder, prism, etc. that meets current regulatory and government requirements. Preferably, hang basket jib 8 and adopt the rod rolling that has trapezoidal thread to form, replace traditional finish rolling screw-thread steel, conveniently hang near basket jib electric welding construction. It may be somewhat shorter in length than the existing threaded steel pannier boom, which is fastened at its bottom end to the underside of the front bottom rail 10 by various means after passing through the bottom distributor rail 9 and the front bottom rail 10. The lower end of the cradle boom 8 in this application does not penetrate the lower distribution beam 9 and the front lower cross beam 10, but only extends above the lower distribution beam 9 and is hinged to the lower distribution beam 9 through the boom converter, and the lower distribution beam 9 is welded to the front lower cross beam 10 in advance, so that the boom converter can directly lift the lower distribution beam 9 and the front lower cross beam 10.
In this embodiment the basket suspension bar 8 has a top threaded section and a bottom threaded section, the threads of which are both trapezoidal threads, and the nut 5 has an internal thread that matches the trapezoidal threads. The trapezoidal thread is one of threads and is divided into a metric system and an English system. The tooth form angle of the English trapezoidal thread is 29 degrees, the common Chinese trapezoidal thread is a metric trapezoidal thread, the tooth form angle is 30 degrees, the tooth form is an isosceles trapezoid, the English trapezoidal thread is usually used for transmission of some mechanisms, and certain strength and rigidity requirements are often required.
Specifically, a threaded section of the top of the cradle suspender 8 is in threaded connection with a first fastener, and the upper part of the cradle suspender 8 is used for penetrating and suspending in a preformed hole of a poured section of the cantilever box girder; the bottom thread section is in threaded connection with a second fastening piece, a suspender converter is hung on the second fastening piece, and the bottom of the suspender converter is hinged with a lower distribution beam 9 through a pin 3.
Through threaded connection's mode, can dismantle and connect first fastener and top screw thread section, for fixed connection's mode, it is more convenient to operate, steps such as frequent welding, cutting of avoiding also can reduce the harm to hanging basket jib 8 in the welding cutting process.
The first fastener and the second fastener both comprise an anchor backing plate 4 and a nut 5 which are sleeved on the hanging basket hanging rod 8; the nut 5 in the first fastener is positioned above the anchor backing plate 4; the nut 5 of the second fastener is located below the anchor backing plate 4. In this embodiment the nut 5 is not a conventional nut but is specifically machined according to the thread configuration of the threaded section of the basket hanger bar 8. The nut 5 is large in front end and small in rear end, and is provided with a fastening structure on the same section, so that the operation of a constructor can be facilitated. The fastening structure can be a common nut structure similar to an external hexagon, but a large spanner specially matched with the nut 5 is needed due to the large size of the nut.
Another structure of the nut is shown in fig. 4, at least two turning handles 11 are provided on the outer circumference of the nut 5, and a construction worker can directly turn the nut 5 using a hand or other force applying rod, etc. by turning the turning handles 11. Meanwhile, in order to further facilitate the operation of hands or force application rods, the rotating handle 11 is provided with a grabbing hole 12, the force application rods are directly inserted into the grabbing hole 12 or directly grabbed by the hands, the nuts 5 can be rotated, the operation is convenient, and the working efficiency can be effectively improved.
In this embodiment, since the load-bearing capacity is particularly large, if the anchor pad 4 is not added, the nut 5 and the top thread section of the cradle boom 8 are subjected to very large pressure only by the nut 5 and the upper distribution beam 6 to cooperate to hoist the lower distribution beam 9 and the front lower cross beam 10 (few, several tons, and several tens of tons). After the anchor backing plate 4 is additionally arranged, all pressure is inevitably shared due to the large surface of the anchor backing plate 4, the pressure in a unit area is reduced, and the pressure born by the nut 5 and the top thread section can be further reduced.
As a possible implementation, the anchor backing plate 4 is a flat plate, and more specifically, a flat plate structure with an inner circle and an outer square. The stress surface is tightly attached to the upper surface of the upper distribution beam 6 above the front upper cross beam 7 of the hanging basket or the lower surface of the bottom plate 2. When the first fastening member is tightened, the upper distribution beam 6 is attached against the front upper cross beam 7, the threads of which are trapezoidal threads, and the nut 5 has an internal thread that matches the trapezoidal threads. The hinge structure effectively guarantees the verticality of the hanging basket hanging rod, and meanwhile, construction operation is facilitated. The hanging system has the advantages that the hanging basket hanging rod is more reasonable in stress and more convenient to install and operate, and the hanging basket construction work efficiency is remarkably improved.
In this embodiment, as shown in fig. 2 and 3, the boom converter includes a seat plate 2, the seat plate 2 is provided with a first through hole, the first through hole is used for the basket hanger rod 8 to pass through, the seat plate 2 below is relative, two ear plates 1 are arranged at intervals, the lower ends of the two ear plates 1 are respectively located at two sides of the lower distribution beam 9, the bottoms of the two ear plates 1 are respectively provided with a transverse second through hole, a third through hole is arranged at a position corresponding to the second through hole on the lower distribution beam 9, a pin 3 penetrates through the second through hole and the third through hole, and the pin is used for hinging the lower distribution beam 9 on the two ear plates 1. When the boom converter lifts the lower distribution beam 9, the front lower cross member 10 is located below the lower distribution beam 9, and the lower distribution beam 9 and the front lower cross member 10 are connected or welded as one body. The hanging basket hanging system is simple in operation process and strong in practicability, can better guarantee the verticality of the hanging basket hanging rod, and effectively improves the safety coefficient of the hanging basket.
Claims (8)
1. The hanging system before bridge construction hanging basket is characterized by comprising a hanging basket hanging rod (8), wherein the hanging basket hanging rod (8) is a straight rod and is provided with a top threaded section and a bottom threaded section, the top threaded section is in threaded connection with a first fastener, and the upper part of the hanging basket hanging rod (8) is used for penetrating through and hanging on a front upper cross beam (7) and an upper distribution beam (6) of the hanging basket through the first fastener;
a second fastening piece is connected to the threaded section of the bottom in a threaded manner, a suspender converter is hung on the second fastening piece, and the bottom of the suspender converter is hinged to a lower distribution beam (9);
the suspender converter comprises a seat plate (2), wherein the seat plate (2) is provided with a first through hole, and the first through hole is used for the hanging basket suspender (8) to pass through;
two ear plates (1) are oppositely arranged below the seat plate (2) at intervals;
the lower ends of the two lug plates (1) are respectively positioned at two sides of a lower distribution beam (9), the bottoms of the two lug plates (1) are respectively provided with a transverse second through hole, and a third through hole is arranged on the lower distribution beam (9) at a position corresponding to the second through hole;
pins (3) penetrate through the second through hole and the third through hole, and the pins (3) are used for hinging the lower distribution beam (9) on the two lug plates (1).
2. The hanging system before bridge construction hanging basket of claim 1, characterized in that, the first fastener and the second fastener both comprise an anchor backing plate (4) and a nut (5) sleeved on the hanging basket suspender (8);
the nut (5) in the first fastener is positioned above the anchor backing plate (4);
the nut (5) in the second fastener is positioned below the anchor backing plate (4).
3. The hanging system before bridge construction hanging basket of claim 2, characterized in that the anchor backing plate (4) is a flat plate, the stress surface of which is tightly attached to the upper surface of the upper distribution beam (6) or the lower surface of the bottom plate (2).
4. The front suspension system for hanging baskets in bridge construction according to claim 1, 2 or 3, characterized in that the threads of the top thread section and the bottom thread section are both trapezoidal threads, and the nut (5) has internal threads matching with the trapezoidal threads.
5. The hanging system before the bridge construction hanging basket of claim 4, characterized in that the hanging basket suspender (8) is a solid cylindrical bar.
6. The front hanging system of the bridge construction hanging basket according to claim 2 or 3, wherein the anchor backing plate (4) is a flat plate with an inner circle and an outer square.
7. The front suspension system of the hanging basket for bridge construction as claimed in claim 6, wherein at least two rotating handles (11) are arranged on the periphery of the nut (5).
8. The front suspension system of the hanging basket for bridge construction according to claim 7, wherein the rotating handle (11) is provided with a gripping hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110175477.3A CN112813851A (en) | 2021-02-09 | 2021-02-09 | Hanging system before basket is hung in bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110175477.3A CN112813851A (en) | 2021-02-09 | 2021-02-09 | Hanging system before basket is hung in bridge construction |
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| Publication Number | Publication Date |
|---|---|
| CN112813851A true CN112813851A (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110175477.3A Pending CN112813851A (en) | 2021-02-09 | 2021-02-09 | Hanging system before basket is hung in bridge construction |
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| CN (1) | CN112813851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000439A (en) * | 2021-11-23 | 2022-02-01 | 江苏省交通工程集团有限公司 | Self-anchored hanging basket sling device |
-
2021
- 2021-02-09 CN CN202110175477.3A patent/CN112813851A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000439A (en) * | 2021-11-23 | 2022-02-01 | 江苏省交通工程集团有限公司 | Self-anchored hanging basket sling device |
| CN114000439B (en) * | 2021-11-23 | 2022-08-05 | 江苏省交通工程集团有限公司 | Self-anchored hanging basket sling device |
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