CN214362945U - Reverse hoisting system suitable for post-cast flange plate during construction of front supporting point hanging basket main beam - Google Patents
Reverse hoisting system suitable for post-cast flange plate during construction of front supporting point hanging basket main beam Download PDFInfo
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- CN214362945U CN214362945U CN202022481837.6U CN202022481837U CN214362945U CN 214362945 U CN214362945 U CN 214362945U CN 202022481837 U CN202022481837 U CN 202022481837U CN 214362945 U CN214362945 U CN 214362945U
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Abstract
The utility model discloses a reverse hanging system of a post-pouring flange plate suitable for constructing a girder by hanging a basket at a front fulcrum, which comprises a supporting unit, a reverse hanging unit and a template unit; the supporting unit is horizontally and adjustably mounted on the bridge body, and one end of the supporting unit extends out of the side of the bridge body; the reverse hanging unit is arranged on the part, extending out of the side of the bridge body, of the supporting unit, the template unit is hung below the reverse hanging unit, and the template unit is suspended at the flange plate pouring position by adjusting the reverse hanging unit. The reverse hoisting system can be repeatedly used, is convenient to install/disassemble, is low in construction difficulty, is not influenced by landform and landform, and greatly saves the construction cost of the flange plate. And the height adjusting function of the reverse hanging system can ensure the connection precision of the flange plate and the bridge body, and the horizontal line type of the formed flange plate can be ensured to be good by the horizontal adjusting function of the reverse hanging system, so that the flange plate is perfectly butted with the finished flange plate.
Description
Technical Field
The utility model belongs to bridge building field especially relates to a backward hoisting system of post-cast flange plate when being applicable to preceding fulcrum hanging basket construction girder.
Background
Whether the sidewalk flange plate of the cable-stayed bridge keeps the line shape neat or not is the most visual expression of the appearance and the quality of the bridge. Therefore, the conditions that all flange plates are regularly and smoothly arranged along the line, have no break points, waves and warping and the like are strictly controlled, and the conditions are important standards for ensuring the appearance quality of the bridge.
The construction of the main beam of the cable-stayed bridge is usually carried out by hanging a basket at a front supporting point and casting. The construction of the flange plate adopts a front supporting point hanging basket post-pouring flange plate support template. Namely, when the standard suspension casting section of the Nth section of the girder is constructed, the construction of the flange plate of the standard suspension casting section of the (N-1) th section of the girder is synchronously completed. When the construction of all main girders of the bridge is finished, the problem that one flange plate needs to be constructed independently exists.
In the existing scheme, a mode of building a support at the bottom of a bridge is adopted to support a mold, and pouring construction of the flange plate is completed. But because the river bank revetment or river surge is arranged below the bridge. The support is difficult to build, high in risk, poor in stability and prone to collapse accidents.
Therefore, a reverse hoisting system capable of depending on the bridge is urgently needed, which is used for bearing the die of the flange plate, realizing position adjustment and completing pouring construction of the flange plate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a backward hoisting system of watering flange plate when being applicable to preceding fulcrum string basket construction girder erects backward hoisting system in pontic side, and the template that will pour flange plate usefulness suspends in midair in the target construction position and is under construction. The problem of when the flange board is under construction alone the support is built difficultly, the risk is high is solved.
The utility model discloses a realize through following technical scheme:
a reverse hoisting system suitable for post-cast flange plates during construction of a main beam of a front-fulcrum hanging basket comprises a supporting unit, a reverse hoisting unit and a template unit; the supporting unit is horizontally and adjustably mounted on the bridge body, and one end of the supporting unit extends out of the side of the bridge body; the reverse hanging unit is arranged on the part, extending out of the side of the bridge body, of the supporting unit, the template unit is hung below the reverse hanging unit, and the template unit is suspended at the flange plate pouring position by adjusting the reverse hanging unit.
By the proposal, the utility model discloses at least, obtain following technological effect:
the reverse hanging unit is hung on the side of the bridge body through the supporting unit, and the bottom of the reverse hanging unit is hung on the template unit. The height of the template unit is adjusted by controlling the lifting height of the reverse lifting unit, so that the template unit can be accurately suspended at the flange plate pouring construction position. And pouring concrete into the formwork unit, and finishing the construction of the side flange plate of the bridge after the formwork unit is connected with the bridge body and is dried and fixed.
The support unit can adjust levelness, ensures that the constructed flange plates keep a horizontal line type, is perfectly butted with other finished horizontal line type flange plates, and is tidy, smooth, free of break points, waves and warping. The appearance quality is improved.
Preferably, the supporting unit comprises a supporting seat and an adjusting seat; one end of the supporting seat is fixedly arranged on the bridge body, and the other end of the supporting seat extends out of the side of the bridge body; the adjusting seat is connected with the bridge body in a height-adjustable manner, one end of the adjusting seat is installed on the bridge body, and the other end of the adjusting seat extends out of the side of the bridge body; the supporting seat and the adjusting seat are equal in height, and the part of the supporting seat and the part of the adjusting seat extending out of the side of the bridge body are used for supporting the reverse hanging unit, so that the reverse hanging unit is suspended on the side of the bridge body.
Preferably, the adjusting seat comprises an adjusting plate and an outrigger; one end of the cantilever beam is connected with the bridge body through the anchoring assembly, and the other end of the cantilever beam extends out of the side of the bridge body; the adjusting plate pad is arranged between the cantilever beam and the bridge body, and the height of the cantilever beam is adjusted by replacing adjusting plates with different thicknesses or increasing/reducing the stacking number of the adjusting plates.
Preferably, the anchoring assembly comprises an anchor rod for connecting the bridge body and the cantilever beam in series, and an anchor rod gasket and an anchor rod nut which are respectively arranged at two ends of the anchor rod.
Preferably, the reverse hanging unit comprises a reverse hanging beam and a reverse hanging rod piece; the reverse hanging beam is erected on the top surfaces of the supporting seat and the cantilever beam; and the top of the reverse hanging rod piece is fixed by penetrating through the reverse hanging beam, and the template unit is hung on the flange plate pouring position below the cantilever beam.
Preferably, the anti-hanging beam is a truss structure formed by connecting two groups of Bailey beams in parallel through Bailey brackets; any one of the Bailey beams is formed by combining Bailey sheets and Bailey bolts.
Preferably, the reverse hanging rod piece comprises a hanging rod, an upper gasket, a lower gasket and hanging rod nuts respectively arranged at two ends of the hanging rod; the bottom end of the suspender is sleeved in the lower gasket and is provided with a suspender nut, and the top end of the suspender sequentially penetrates through the template unit and the pull rod hole on the bailey from bottom to top; the top end of the suspender protrudes out of the top end opening of the bailey piece pull rod hole, and is sleeved with the upper gasket and the other suspender nut to finish the installation.
Preferably, the lower gasket is wedge-shaped, flat plate-shaped or arc-shaped to fit the shape of the bottom surface of the formwork unit.
Preferably, the formwork unit comprises a panel and a rib plate, the panel is used for bearing and containing concrete for casting the flange plate, and the rib plate is perpendicular to the plate surface and fixed on the outer layer of the panel for reinforcement.
Preferably, a limiting plate is mounted at the bottom of the reverse hanging beam; the limiting plate is a right-angled triangular steel plate, one right-angled side of the limiting plate is attached to the surface of the reverse hanging beam, and the other right-angled side of the limiting plate is attached to the surface of the supporting seat or the cantilever beam.
The utility model has the advantages that: the reverse hoisting system can be repeatedly used, is convenient to install/disassemble, is low in construction difficulty, is not influenced by landform and landform, and greatly saves the construction cost of the flange plate. And the height adjusting function of the reverse hanging system can ensure the connection precision of the flange plate and the bridge body, and the horizontal line type of the formed flange plate can be ensured to be good by the horizontal adjusting function of the reverse hanging system, so that the flange plate is perfectly butted with the finished flange plate.
Drawings
Fig. 1 is a schematic view of a back-hanging system of a rear-pouring flange plate suitable for a front-fulcrum hanging basket construction girder according to an embodiment of the present invention.
Fig. 2 is a schematic view of a cross-sectional structure a-a of a portion of a support base according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a section B-B of a portion of an adjusting seat provided in an embodiment of the present invention.
Legend:
1 a support unit; 2, reversely hanging the unit; 3, a template unit; 4 a bridge body;
11 a supporting seat; 12 an adjusting seat; 13 an anchor assembly;
21, a reverse hanging beam; 22 reverse hanging rod piece; 23 limiting plates;
31 a faceplate; 32 ribs;
121 adjusting plate; 122 cantilever beam;
131 anchor rods; 132 anchor pad; 133 an anchor nut;
a 221 boom; 222, an upper gasket; 223 lower gasket; 224 a boom nut.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1:
as shown in fig. 1, the embodiment provides a reverse hanging system suitable for a post-cast flange plate when a main beam is constructed by a front pivot hanging basket, which is composed of a supporting unit 1, a reverse hanging unit 2 and a template unit 3; one end of the supporting unit 1 is connected with the bridge body 4, the other end of the supporting unit is provided with the reverse hanging unit 2 and supports the reverse hanging unit 2 to be hung above the flange plate installation position, the template unit 3 is hung below the reverse hanging unit 2, the template unit 3 can be adjusted to the construction position by the reverse hanging unit 2, concrete is injected into the template unit 3, and the flange plate connected with the side wing of the bridge body 4 is formed after the template unit 3 is dried and fixed by the shape of the template unit 3.
As shown in fig. 1, in order to stably support the reverse hanging unit 2, the supporting unit 1 needs to provide at least two stable supporting points, so that the supporting unit 1 is divided into a supporting seat 11 and an adjusting seat 12. As shown in fig. 2, the supporting seat 11 is a basic supporting structure, one end of which is directly and fixedly connected with the bridge 4, and the other end of which extends out of the side of the bridge 4 for supporting the reverse hanging unit 2. As shown in fig. 3, the height of the adjusting seat 12 needs to be adjusted to maintain the horizontal state with the supporting seat 11, so as to avoid the inclination problem caused by the dimension error of the bridge 4. The adjusting seat 12 comprises an adjusting plate 121 and an outrigger 122, the adjusting plate 121 is divided into two groups and is arranged between the outrigger 122 and the bridge 4, and the supporting heights of the two groups of adjusting plates 121 are respectively changed to enable the outrigger 122 to be kept horizontal and consistent with the height of the supporting seat 11. After the levelness and height of the outrigger 122 are adjusted, one end of the outrigger is fixed to the bridge 4 through the anchor assembly 13, and the other end of the outrigger also extends out of the side of the bridge 4 to support the reverse hanging unit 2. After the horizontal adjustment of the adjusting seat 12, the levelness of the reverse hanging unit 2 supported by the supporting seat 11 and the adjusting seat 12 can be ensured.
It should be noted that the adjusting plate 121 may be a whole plate structure with different thicknesses as shown in fig. 3, or may be a plate group structure formed by stacking a plurality of thin plates. The support height of the adjusting plate 121 can be changed by replacing the whole plate structure with different thicknesses, or by increasing or decreasing the number of layers of thin plates to change the whole height of the plate group structure.
As shown in fig. 3, the anchor assembly 13 is composed of an anchor rod 131, an anchor rod spacer 132 and an anchor rod nut 133 which are separately assembled to both ends of the anchor rod 131. The structure is convenient to install or disassemble, only through holes are drilled in the outriggers 122 and the bridge body 4, the anchor rods 131 are inserted, the anchor rod gaskets 132 and the anchor rod nuts 133 are installed at one ends, protruding out of the outriggers 122, of the anchor rods 131, and then the anchor rod gaskets 132 and the anchor rod nuts 133 are installed at one ends, protruding out of the bottom of the bridge body 4, of the anchor rods 131. The anchor nuts 133 on both sides are fastened, and the cantilever 122 can be fixedly installed. The structure can be repeatedly used, and construction cost and material loss are saved.
As shown in fig. 2 or fig. 3, the reverse hanging unit 2 is composed of a reverse hanging beam 21 and a reverse hanging rod 221 member 22, the reverse hanging beam 21 is erected on the support base 11 and the adjusting base 12, and the reverse hanging rod 221 member 22 connects the reverse hanging beam 21 and the formwork unit 3. The anti-hanging beam 21 is a truss structure formed by connecting two groups of Bailey beams in parallel through Bailey brackets, and each group of Bailey beams is formed by combining and splicing Bailey pieces and Bailey bolts. Bailey pieces are common building materials, the pipe frame structure of Bailey pieces is hollow, and the Bailey pieces are provided with draw holes, can be used for penetrating through the reverse hanging rod 221 pieces 22, do not interfere with the connection between the reverse hanging rod 221 pieces 22 and the template unit 3, can play the roles of protection and limitation on the reverse hanging rod 221 pieces 22, avoid the reverse hanging rod 221 pieces 22 from exposing too much and generating accidental damage, and simultaneously can also increase the limiting effect, reduce the shaking of the reverse hanging rod 221 pieces 22, and increase the hoisting stability of the template unit 3. The counter-boom 221 includes a boom 221, an upper washer 222, a lower washer 223, and boom nuts 224 attached to both ends of the boom 221. The suspension rod 221 longitudinally penetrates through a pull rod hole in the bailey piece, and a rod body of the suspension rod 221 is provided with threads which can be matched with a nut to form a thread pair. The top end of the suspension rod 221 protrudes from the surface of the bailey piece, and is fixed by a suspension rod nut 224 after being fitted with a spacer 222, and the top end of the suspension rod 221 can be hung on the reverse suspension beam 21, and after the bottom end of the suspension rod 221 penetrates the formwork unit 3, the end portion protruding from the formwork unit 3 is fitted with a lower spacer 223 and fixed by the suspension rod nut 224, and the formwork unit 3 can be fixed to the suspension rod 221. And finishing hoisting.
It should be noted that, as shown in fig. 2 or fig. 3, the lower cushion plate may be wedge-shaped, flat plate-shaped, arc-shaped or other special shapes depending on the shape of the mold. And keeping one side surface of the lower backing plate completely attached to the bottom surface of the template unit 3, and keeping the other side surface stably attached to the top surface of the nut. The problem that the template unit 3 shakes due to the fact that the shape of the nut is not matched with the shape of the bottom face of the template unit 3 can be avoided.
As shown in fig. 2 or fig. 3, a limiting plate 23 is additionally provided to further reinforce the joint between the anti-hanging beam 21 and the supporting seat 11 and between the anti-hanging beam and the adjusting seat 12. And the right angle of the limiting plate 23 of the right triangle is abutted against the vertical joint of the reverse hanging beam 21 and the supporting seat 11, so that two right-angle sides of the right triangle are respectively attached to the surfaces of the reverse hanging beam 21 and the supporting seat 11 and then are fixed in a welding manner. Similarly, the right angle of the limiting plate 23 of the right triangle is abutted against the vertical connection part of the reverse hanging beam 21 and the cantilever beam 122, so that two right-angle sides of the right triangle are respectively attached to the surfaces of the reverse hanging beam 21 and the cantilever beam 122 and then are fixed in a welding manner. This prevents the anti-hanging beam 21 from sliding along the length of the support base 11/outrigger 122.
As shown in fig. 2, the template unit 3 is constituted by a face plate 31 and a rib plate 32. The shape of the face plate 31 is determined according to the shape requirement of the flange plate, and the face plate serves as a container for holding concrete, and can be removed after the concrete is dried on the side wing of the bridge body 4. The ribs 32 serve to reinforce the structural strength of the panel 31 and prevent the panel 31 from breaking due to excessive weight of concrete. After the rib 32 is installed, the thickness of the panel 31 can be reduced appropriately to save material, and the effect of the template unit 3 is not affected.
Example 2:
this embodiment still provides a reverse hanging system operating procedure suitable for post-cast flange plate when preceding fulcrum hangs basket construction girder on embodiment 1's basis as follows:
the method comprises the following steps: selecting two fulcrum positions at the construction position of the flange plate, and installing and leveling a support seat 11 at the first fulcrum position as shown in fig. 2; as shown in fig. 3, two sets of adjusting plates 121 are laid at the second pivot position, and an outrigger 122 is erected on the top of the two sets of adjusting plates 121, so that the outrigger 122 is kept horizontal and at the same height as the support base 11 by changing the support height of the two adjusting plates 121. One end of the outrigger 122 is then secured to the bridge 4 using the anchor assembly 13.
Step two: as shown in fig. 1, two groups of bailey beams are assembled by bailey pieces and bailey bolts, and are respectively placed at preset positions on a supporting seat 11 and a cantilever beam 122 in a hoisting manner, and then are moved into a bailey bracket to be placed between the two groups of bailey beams, so that the two groups of bailey beams are connected in parallel through the bailey bracket to form an integrally stable truss structure; as shown in fig. 2 and 3, a limiting plate 23 is welded at the joint of the two groups of beret beams, the support seat 11 and the cantilever beam 122.
Step three: as shown in fig. 2 or 3, the reverse hanging bar 221 22 is pre-installed on the formwork unit 3, a lower pad 223 adapted to the shape of the bottom surface of the formwork unit 3 is selected to stabilize the fitting of the reverse hanging bar 221 22 with the formwork unit 3, and then the fixing is performed by a hanging bar nut 224. And then the connecting whole of the reverse suspension rod 221 piece 22 and the template unit 3 is hoisted to the lower part of the reverse suspension beam 21 by a hoisting device to suspend.
Step four: as shown in fig. 2 or fig. 3, the hanger nut 224 at the top end of the hanger 221 is unscrewed, the upper washer 222 is removed, the top end of the hanger 221 passes through the tie bar hole of the bailey piece from bottom to top and penetrates out of the top of the bailey piece, the upper washer 222 is sleeved on the top of the hanger 221 again, and the hanger nut 224 is screwed down, so that the top end of the hanger 221 is clamped on the reverse hanging beam 21. And (4) the connection between the reverse suspension rod 221 piece 22 and the hoisting device is released, and the reverse suspension system installation is completed.
Step five: as shown in fig. 2 or fig. 3, the template elevation is adjusted, the suspension height of the template unit 3 is adjusted according to the design requirement by adjusting and controlling a suspension rod nut 224 at the top of the suspension rod 221, then the sand bag pre-filling template unit 3 is used for pre-pressing, the size change data of the plastic deformation generated by the suspension rod 221 and the template unit 3 is recorded, and the pre-camber adjustment elevation is set through the data, so that the purpose of controlling the line type of the flange plate is achieved.
Various technical features in the above embodiments may be arbitrarily combined as long as there is no conflict or contradiction in the combination between the features, but is limited to the space and is not described one by one.
The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology if they do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a reverse system that hangs of post-cast flange plate when being applicable to preceding fulcrum hanging basket construction girder which characterized in that: comprises a supporting unit, a reverse hanging unit and a template unit; the supporting unit is horizontally and adjustably mounted on the bridge body, and one end of the supporting unit extends out of the side of the bridge body; the reverse hanging unit is arranged on the part, extending out of the side of the bridge body, of the supporting unit, the template unit is hung below the reverse hanging unit, and the template unit is suspended at the flange plate pouring position by adjusting the reverse hanging unit.
2. The reverse hanging system for the post-cast flange plate when the front support basket is used for constructing the main girder according to claim 1, wherein the supporting unit comprises a supporting seat and an adjusting seat; one end of the supporting seat is fixedly arranged on the bridge body, and the other end of the supporting seat extends out of the side of the bridge body; the adjusting seat is connected with the bridge body in a height-adjustable manner, one end of the adjusting seat is installed on the bridge body, and the other end of the adjusting seat extends out of the side of the bridge body; the supporting seat and the adjusting seat are equal in height, and the part of the supporting seat and the part of the adjusting seat extending out of the side of the bridge body are used for supporting the reverse hanging unit, so that the reverse hanging unit is suspended on the side of the bridge body.
3. The reverse hanging system suitable for the post-cast flange plate when the front-point hanging basket constructs the main girder according to claim 2, wherein the adjusting seat comprises an adjusting plate and an outrigger; one end of the cantilever beam is connected with the bridge body through the anchoring assembly, and the other end of the cantilever beam extends out of the side of the bridge body; the adjusting plate pad is arranged between the cantilever beam and the bridge body, and the height of the cantilever beam is adjusted by replacing adjusting plates with different thicknesses or increasing/reducing the stacking number of the adjusting plates.
4. The reverse hanging system suitable for the post-cast flange plate during the construction of the main girder of the front-fulcrum hanging basket according to claim 3, wherein the anchoring assembly comprises an anchor rod for connecting the bridge body and the cantilever beam in series, an anchor rod gasket and an anchor rod nut which are respectively arranged at two ends of the anchor rod.
5. The reverse hanging system suitable for the rear pouring flange plate during the construction of the main girder of the front fulcrum hanging basket according to claim 3, wherein the reverse hanging unit comprises a reverse hanging beam and a reverse hanging rod piece; the reverse hanging beam is erected on the top surfaces of the supporting seat and the cantilever beam; and the top of the reverse hanging rod piece is fixed by penetrating through the reverse hanging beam, and the template unit is hung on the flange plate pouring position below the cantilever beam.
6. The reverse hanging system suitable for the post-cast flange plate during the construction of the main beam of the front-point hanging basket according to claim 5 is characterized in that the reverse hanging beam is a truss structure formed by connecting two groups of Bailey beams in parallel through Bailey brackets; any one of the Bailey beams is formed by combining Bailey sheets and Bailey bolts.
7. The reverse hanging system suitable for the post-pouring flange plate when the front-point hanging basket constructs the main girder according to claim 5, wherein the reverse hanging rod piece comprises a hanging rod, an upper gasket, a lower gasket and hanging rod nuts respectively arranged at two ends of the hanging rod; the bottom end of the suspender is sleeved in the lower gasket and is provided with a suspender nut, and the top end of the suspender sequentially penetrates through the template unit and the pull rod hole on the bailey from bottom to top; the top end of the suspender protrudes out of the top end opening of the bailey piece pull rod hole, and is sleeved with the upper gasket and the other suspender nut to finish the installation.
8. The reverse hanging system of the post-pouring flange plate suitable for the construction of the main girder of the front-point hanging basket according to claim 7, wherein the lower gasket is wedge-shaped, flat plate-shaped or arc-shaped which is adapted to the shape of the bottom surface of the formwork unit.
9. The reverse hanging system suitable for the post-cast flange plate during the construction of a main girder of a front-point hanging basket according to claim 1 is characterized in that the template unit comprises a panel and a rib plate, the panel is used for bearing concrete for casting the flange plate, and the rib plate is fixed on the outer layer of the panel perpendicular to the plate surface and used for reinforcement.
10. The reverse hanging system suitable for the post-pouring flange plate during the construction of the main beam of the front-fulcrum hanging basket according to claim 5, wherein a limiting plate is installed at the bottom of the reverse hanging beam; the limiting plate is a right-angled triangular steel plate, one right-angled side of the limiting plate is attached to the surface of the reverse hanging beam, and the other right-angled side of the limiting plate is attached to the surface of the supporting seat or the cantilever beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481837.6U CN214362945U (en) | 2020-10-30 | 2020-10-30 | Reverse hoisting system suitable for post-cast flange plate during construction of front supporting point hanging basket main beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481837.6U CN214362945U (en) | 2020-10-30 | 2020-10-30 | Reverse hoisting system suitable for post-cast flange plate during construction of front supporting point hanging basket main beam |
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| Publication Number | Publication Date |
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| CN214362945U true CN214362945U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022481837.6U Active CN214362945U (en) | 2020-10-30 | 2020-10-30 | Reverse hoisting system suitable for post-cast flange plate during construction of front supporting point hanging basket main beam |
Country Status (1)
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| CN (1) | CN214362945U (en) |
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- 2020-10-30 CN CN202022481837.6U patent/CN214362945U/en active Active
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