CN209741676U - Main arch rib auxiliary structure for accurately hoisting large-span steel tube arch bridge - Google Patents
Main arch rib auxiliary structure for accurately hoisting large-span steel tube arch bridge Download PDFInfo
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- CN209741676U CN209741676U CN201920265125.5U CN201920265125U CN209741676U CN 209741676 U CN209741676 U CN 209741676U CN 201920265125 U CN201920265125 U CN 201920265125U CN 209741676 U CN209741676 U CN 209741676U
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Abstract
The utility model relates to an auxiliary structure for accurately hoisting a main arch rib of a long-span steel tube arch bridge, which comprises a plurality of auxiliary supports, wherein the lower end of each auxiliary support is fixedly arranged, and the upper ends of the auxiliary supports are supported on the arch rib; the arch rib comprises a first arch rib and a second arch rib, and the right end of the first arch rib is fixedly connected with the left end of the second arch rib. The arch rib supporting device has the advantages that the arch ribs are supported through the auxiliary support, so that the first arch rib can be pre-fixed on the auxiliary support, the second arch rib is hoisted on the auxiliary support through hoisting, welding fixation can be better achieved, and the effect that the center lines of all the arch ribs can be on the same straight line after the arch ribs form a bridge is achieved.
Description
Technical Field
The utility model relates to an accurate hoist and mount large-span steel pipe arched bridge owner arch rib auxiliary structure.
background
When the arch ribs of the large-span steel pipe arch bridge are hoisted, the interfaces of two adjacent arch ribs need to be welded and fixed, one arch rib needs to be fixed first, the other arch rib is hoisted by utilizing a traveling crane and is welded after being aligned with the fixed arch rib, at present, the alignment adopts the hoisting and positioning of a total station instrument by a constructor after lofting and positioning, the speed is low, the operation is complex, and the line shape after the bridge formation is not ensured.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an accurate hoist and mount large-span steel pipe arched bridge owner arch rib auxiliary structure to solve the arch rib and become the problem that the central line of each arch rib can be on same straight line behind the bridge.
the utility model provides a technical scheme that its technical problem adopted is:
The auxiliary structure for accurately hoisting the main arch rib of the long-span steel tube arch bridge comprises a plurality of auxiliary supports, wherein the lower ends of the auxiliary supports are fixedly arranged, and the upper ends of the auxiliary supports are supported on the arch rib;
the arch rib comprises a first arch rib and a second arch rib, and the right end of the first arch rib is fixedly connected with the left end of the second arch rib.
Furthermore, the upper end of the auxiliary support is fixedly connected with a distribution beam, and a support steel plate is arranged at the upper end of the distribution beam;
The support steel sheet includes stiff end and crescent support end, the stiff end fixed connection of support steel sheet is on the up end of distribution beam, the crescent support end of support steel sheet supports on the arch rib, and makes the central line of arch rib coincides mutually with the central line of support steel sheet.
Furthermore, be equipped with the spacing stand of side on the distributive girder, the lower extreme fixed connection of the spacing stand of side is on the up end of distributive girder, the vertical direction setting of the spacing stand of side is in one side of arch rib.
Further, be equipped with the hand plate calabash between second arch rib and the distribution roof beam, the lifting hook end fixed connection of hand plate calabash is on the distribution roof beam, the chain end fixed connection of hand plate calabash is in the left end of second arch rib, and rotates the spanner of hand plate calabash in order to adjust the vertical degree of second arch rib.
Furthermore, an L-shaped adjusting plate is arranged at the right end of the first arch rib, and a vertical plate of the L-shaped adjusting plate is fixedly connected to the first arch rib;
A jack is arranged between the horizontal plate of the L-shaped adjusting plate and the upper end face of the distribution beam, the lower end of the jack is tightly propped against the distribution beam, the upper end of the jack is tightly propped against the horizontal plate of the L-shaped adjusting plate, the jack is pressed to adjust the inclination of the first arch rib, and the right port of the first arch rib is matched with the left port of the second arch rib.
Furthermore, a plurality of temporary fixing straps are arranged at the right end of the first arch rib, and all the temporary fixing straps are uniformly distributed on the right port of the first arch rib;
the temporarily fixed horse board includes first stiff end and second stiff end, the first stiff end fixed connection of temporarily fixed horse board is on the right port of first arch rib, the second stiff end fixed connection of temporarily fixed horse board is on the left port of second arch rib.
The utility model has the advantages that: the arch ribs are supported by the auxiliary support, so that the first arch rib can be pre-fixed on the auxiliary support, the second arch rib is hoisted on the auxiliary support through hoisting, better welding and fixing can be realized, the center lines of all the arch ribs can be on the same straight line after the arch ribs are bridged,
Drawings
the present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a front view of the auxiliary structure of the present invention;
Fig. 2 is a side view of the auxiliary structure of the present invention;
FIG. 3 is a schematic view of a jack in the auxiliary structure of the present invention;
FIG. 4 is a schematic view of a temporary fixing horse board in the auxiliary structure of the present invention;
Wherein; the auxiliary support 1, the distribution beam 11, the support steel plate 12, the side limit upright post 13, the first arch rib 2, the L-shaped adjusting plate 21, the second arch rib 3, the chain block 4, the jack 5 and the temporary fixing horse board 6.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
as shown in fig. 1-4; the auxiliary structure for accurately hoisting the main arch rib of the long-span steel tube arch bridge comprises a plurality of auxiliary supports 1, wherein the lower end of each auxiliary support 1 is fixedly arranged, and the upper ends of the auxiliary supports 1 are supported on the arch rib; the arch rib comprises a first arch rib 2 and a second arch rib 3, wherein the right end of the first arch rib 2 is fixedly connected with the left end of the second arch rib 3. Specifically, a distribution beam 11 is fixedly connected to the upper end of the auxiliary support 1, and a support steel plate 12 is arranged at the upper end of the distribution beam 11; support steel sheet 12 includes stiff end and crescent support end, support steel sheet 12's stiff end fixed connection is on the up end of distributive girder 11, support steel sheet 12's crescent support end supports on the arch rib, and makes the central line of arch rib and support steel sheet 12's central line coincide mutually. Be equipped with side spacing stand 13 on the distributive girder 11, the lower extreme fixed connection of side spacing stand 13 is on the up end of distributive girder 11, the vertical direction setting of side spacing stand 13 is in one side of arch rib.
and in order to finely adjust the second arch rib 3, a plate hoist 4 is arranged between the second arch rib 3 and the distribution beam 11, a hook end of the plate hoist 4 is fixedly connected to the distribution beam 11, a chain end of the plate hoist 4 is fixedly connected to the left end of the second arch rib 3, and a wrench of the plate hoist 4 is rotated to adjust the verticality of the second arch rib 3.
In addition, an L-shaped adjusting plate 21 is arranged at the right end of the first arch rib 2, and the vertical plate of the L-shaped adjusting plate 21 is fixedly connected to the first arch rib 2; a jack 5 is arranged between the horizontal plate of the L-shaped adjusting plate 21 and the upper end face of the distribution beam 11, the lower end of the jack 5 is tightly pressed on the distribution beam 11, the upper end of the jack 5 is tightly pressed on the horizontal plate of the L-shaped adjusting plate 21, the jack 5 is pressed to adjust the inclination of the first arch rib 2, and the right port of the first arch rib 2 is matched with the left port of the second arch rib 3.
in order to ensure that the right port of the first arch rib 2 and the left port of the second arch rib 3 can be welded in a positioning manner, a plurality of temporary fixing horse plates 6 are arranged at the right end of the first arch rib 2, and the temporary fixing horse plates 6 are uniformly distributed on the right port of the first arch rib 2; temporarily fixed horse board 6 includes first stiff end and second stiff end, the first stiff end fixed connection of temporarily fixed horse board 6 is on the right port of first arch rib 2, the second stiff end fixed connection of temporarily fixed horse board 6 is on the left port of second arch rib 3.
In actual operation, firstly, a positioning cross line is arranged on the upper surface of the distribution beam 11 in a top-measuring mode, the height and the installation position of a support steel plate 12 are determined, the support steel plate 12 and a side limiting upright column 13 are installed in a welding mode, a temporary fixing horse plate 6 is welded on the right port of a first arch rib 2, arch rib hoisting is carried out, a hoisted second arch rib 3 is abutted with the first arch rib 2 installed on an auxiliary support 1, and the beam falls; aligning the center line of the arch rib and the center line of the support steel plate 12 on the beam; adjusting the arch verticality by rotating the hand plate hoist 4 according to the alignment condition of the arch rib and the boom prepared hole of the distribution beam 11 and the axis position of the second arch rib 3, and welding and fixing;
After the adjustment is counterpointed and is accomplished, carry out accurate adjustment, counterpoint with jack 5 pair rib section end opening of a river welding mouth to welding temporary fixation horse board 6, fixed completion back truck crane loose hook carries out the hoist and mount of next segment section, and will after the installation is accomplished the utility model discloses an auxiliary structure demolishs, follows this method and stride to accomplish whole hoist and mount unit installation.
in conclusion, the arch rib is installed through the steps, so that the rapid positioning, the convenient construction and the convenient operation are realized, the working procedures are effectively connected, the arch rib line shape is good after the bridge is formed, and the reserved hole position is accurate.
in light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The auxiliary structure for accurately hoisting the main arch rib of the large-span steel pipe arch bridge is characterized by comprising a plurality of auxiliary supports (1), wherein the lower ends of the auxiliary supports (1) are fixedly arranged, and the upper ends of the auxiliary supports (1) are supported on the arch rib;
The arch rib comprises a first arch rib (2) and a second arch rib (3), and the right end of the first arch rib (2) is fixedly connected with the left end of the second arch rib (3).
2. the auxiliary structure for accurately hoisting the main arch rib of the long-span steel tube arch bridge is characterized in that the upper end of the auxiliary support (1) is fixedly connected with a distribution beam (11), and the upper end of the distribution beam (11) is provided with a support steel plate (12);
support steel sheet (12) support the end including stiff end and crescent, the stiff end fixed connection of support steel sheet (12) is on the up end of distributive girder (11), the crescent of support steel sheet (12) supports the end and supports on the arch rib, and makes the central line of arch rib coincides mutually with the central line of support steel sheet (12).
3. The auxiliary structure for accurately hoisting the main arch rib of the long-span steel pipe arch bridge according to claim 2, wherein the distribution beam (11) is provided with a lateral limit column (13), the lower end of the lateral limit column (13) is fixedly connected to the upper end surface of the distribution beam (11), and the lateral limit column (13) is vertically arranged on one side of the arch rib.
4. The auxiliary structure for accurately hoisting the main arch rib of the long-span steel pipe arch bridge is characterized in that a plate hoist (4) is arranged between the second arch rib (3) and the distribution beam (11), a lifting hook end of the plate hoist (4) is fixedly connected to the distribution beam (11), a chain end of the plate hoist (4) is fixedly connected to the left end of the second arch rib (3), and a wrench of the plate hoist (4) is rotated to adjust the verticality of the second arch rib (3).
5. The auxiliary structure for accurately hoisting the main arch rib of the long-span steel tube arch bridge is characterized in that an L-shaped adjusting plate (21) is arranged at the right end of the first arch rib (2), and the vertical plate of the L-shaped adjusting plate (21) is fixedly connected to the first arch rib (2);
A jack (5) is arranged between the horizontal plate of the L-shaped adjusting plate (21) and the upper end face of the distribution beam (11), the lower end of the jack (5) is tightly propped against the distribution beam (11), the upper end of the jack (5) is tightly propped against the horizontal plate of the L-shaped adjusting plate (21), the jack (5) is pressed to adjust the inclination of the first arch rib (2), and the right end opening of the first arch rib (2) is matched with the left end opening of the second arch rib (3).
6. the auxiliary structure for accurately hoisting the main arch rib of the long-span steel tube arch bridge is characterized in that a plurality of temporary fixing horse boards (6) are arranged at the right end of the first arch rib (2), and the temporary fixing horse boards (6) are uniformly distributed at the right end opening of the first arch rib (2);
Temporarily fixed horse board (6) include first stiff end and second stiff end, the first fixed end fixed connection of temporarily fixed horse board (6) is on the right-hand member mouth of first arch rib (2), the second fixed end fixed connection of temporarily fixed horse board (6) is on the left port of second arch rib (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265125.5U CN209741676U (en) | 2019-02-28 | 2019-02-28 | Main arch rib auxiliary structure for accurately hoisting large-span steel tube arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265125.5U CN209741676U (en) | 2019-02-28 | 2019-02-28 | Main arch rib auxiliary structure for accurately hoisting large-span steel tube arch bridge |
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| CN209741676U true CN209741676U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920265125.5U Active CN209741676U (en) | 2019-02-28 | 2019-02-28 | Main arch rib auxiliary structure for accurately hoisting large-span steel tube arch bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030781A (en) * | 2020-08-19 | 2020-12-04 | 中交路桥建设有限公司 | Installation method and installation structure of arch rib segment of steel arch bridge |
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2019
- 2019-02-28 CN CN201920265125.5U patent/CN209741676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030781A (en) * | 2020-08-19 | 2020-12-04 | 中交路桥建设有限公司 | Installation method and installation structure of arch rib segment of steel arch bridge |
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