CN212895948U - Curved steel beam pushing system - Google Patents
Curved steel beam pushing system Download PDFInfo
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- CN212895948U CN212895948U CN202021452511.4U CN202021452511U CN212895948U CN 212895948 U CN212895948 U CN 212895948U CN 202021452511 U CN202021452511 U CN 202021452511U CN 212895948 U CN212895948 U CN 212895948U
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Abstract
The utility model provides a curve girder steel pushes away system, the girder steel bottom is equipped with pulley and foraminiferous connecting plate, foraminiferous connecting plate is connected through the bolt with the push pedal, the pulley sets up on the curve track, according to the orbital length of constant curvature curve, sets up a track buttress at every certain distance, the push is pushed away the buttress setting in the girder steel below, and first push is pushed away the buttress setting and is assembled the support within range at the girder steel, and the middle part that the roof beam strides within range sets up second push and pushes away the buttress, sets up a pair of three-dimensional top on every push away the buttress and pushes away the jack, it is used for girder steel hoist and mount welding to assemble the support, is located the prelude that the construction pushed away the section, set up ultra.
Description
Technical Field
The utility model relates to a top of curve girder steel pushes away construction field, in particular to curve girder steel pushes away system.
Background
The box girder is also called a steel plate box girder, and is a common structural form of a large-span bridge. The steel box girder is generally used on bridges with large span and is called as a steel box girder because the steel box girder is shaped like a box. In a large-span cable support bridge, the span of a steel box girder reaches hundreds of meters or even thousands of meters, and the steel box girder is generally manufactured and installed by a plurality of girder sections. Because the pushing construction method does not influence the traffic under the bridge and the beam sections are periodically constructed on the fixed site, the construction quality and the construction progress are easily ensured. Therefore, the incremental launching construction method is often adopted in the installation construction of the urban bridge extra-large span bridge, the long-line approach bridge or the flyover crossing.
However, the incremental launching construction method has some disadvantages, the traditional incremental launching construction method usually needs to be provided with a guide beam, the limitation on the geometric shape of a bridge structure is more, and the incremental launching construction method cannot be well applied to the construction of curved beam shafts and variable-gradient bridges. In addition, because the stress of the bridge span structure is constantly changed in the pushing process, the beam height and the material consumption are increased, time and labor are consumed, and the cost is greatly increased.
Therefore, a curved steel beam pushing system which is convenient to construct, balanced in pushing stress and free of guide beam is urgently needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a construction convenience, the top pushes away the balanced curve girder steel top that just does not have the nose girder formula of atress and pushes away the system.
In order to realize the purpose, the technical scheme provides a curve steel beam pushing system
The utility model provides a curve girder steel pushes away system for push away curve girder steel, wherein on two at least girder steel buttresses were arranged in to curve girder steel, a plurality of girder steel buttresses formed the bending curve, include: the device comprises a curved track, a track buttress, a pulley, a connecting plate with a hole, a jacking plate, a three-dimensional jacking jack, a jacking buttress, an assembling bracket and an ultrathin vertical jack; the track buttresses are arranged on two sides of the steel beam buttress to form bending curves on two sides of the steel beam buttress, the pushing buttresses are arranged between the alternate steel beam buttresses, the track buttresses are provided with curve tracks with fixed curvature, three-dimensional pushing jacks are fixedly arranged on the pushing buttresses, and ultrathin vertical jacks are fixedly arranged on the steel beam buttress; the bottom of the steel beam is provided with a pulley, wherein the pulley is arranged on a curved track, two sides of the bottom of the steel beam are respectively welded with two through-long connecting plates with holes, the connecting plates with the holes are connected with a pushing plate, a three-dimensional pushing jack pushes the pushing plate, and assembling supports are erected on two sides of a steel beam buttress positioned at the starting position of a beam span.
In some embodiments, the pushing buttress is arranged below the steel beam, the first pushing buttress is arranged in the range of the steel beam assembling support, the second pushing buttress is arranged in the middle of the range of the beam span of the steel beam, and the assembling support is positioned at the head part of the construction pushing section.
In some embodiments, the ejector plate is composed of an L-shaped steel plate and a reinforcing triangular steel plate with holes, and the reinforcing triangular steel plate with holes is arranged on the L-shaped steel plate at intervals.
In some embodiments, the perforated triangular steel plate and the perforated connecting plate have bolt holes 13 formed therein, and the bolt holes of the perforated triangular steel plate and the perforated connecting plate are matched with each other.
In some embodiments, the track buttress and the pushing buttress are both made of steel pipe piles and section steel, wherein the steel pipe piles are vertically arranged, and the section steel is transversely paved on the steel pipe piles to be used as a distribution beam of a temporary buttress top layer.
In some embodiments, one track abutment is provided at intervals, depending on the length of the curved track of constant curvature.
In some embodiments, 4 pulleys are arranged at the bottom of the steel beam of the 1 st unit, and 2 pulleys are arranged at the bottom of the steel beam of every 1-2 units.
Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:
1. the utility model discloses set up the camber curve track, form the curve girder steel top that does not have the nose girder formula and push away the system, simple to operate not only reduces the processing and the dismouting process of nose girder moreover to the time limit for a project and the cost of construction have been reduced.
2. The utility model discloses a top push pedal and foraminiferous connecting plate, simple structure, easy dismounting pushes away the in-process and makes the girder steel structure not receive the power directly, need not to increase the roof beam height and the material quantity adapts to the atress and changes and guaranteed girder steel non-deformable.
3. The utility model discloses the three-dimensional top that well adopted pushes up the jack and can make progress the jacking, can advance forward again, can also transversely rectify simultaneously, is fit for curve bridge top pushing operation, and the accurate control bridge moves towards.
Drawings
FIG. 1 is a schematic view of a curved steel beam jacking system;
FIG. 2 is a schematic view of a curved steel beam jacking system
FIG. 3 is a schematic cross-sectional view of a medium-curve steel beam jacking system;
FIG. 4 is a schematic perspective view of the top blade;
FIG. 5 is a schematic view of the longitudinal arrangement of temporary buttresses and curved tracks;
FIG. 6 is a schematic view of the transverse arrangement of temporary buttresses and curved tracks;
FIG. 7 is a schematic layout of a steel girder erection support;
FIG. 8 is a schematic view of the lateral arrangement of the pulley and the top board;
FIG. 9 is a schematic view of the jacking completion of a curved steel beam.
Figure 10 is a plan view of a curved steel beam jacking completion.
Wherein: 1-steel beam; 2-curved track; 3-rail buttress; 4-a pulley; 5-connecting plate with holes; 6-pushing the plate; 7-bolt; 8-a three-dimensional pushing jack; 9-pushing the buttress; 10-steel beam buttress; 11-splicing support; 12-ultrathin vertical jack; 13-bolt hole; 14-L-shaped steel plate; 15-triangular steel plate with holes; 16-distribution beam; 17-temporary buttress foundation.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.
The curve steel beam pushing system is used for pushing a curve steel beam, wherein the curve steel beam is arranged on at least two steel beam buttresses 10, a plurality of steel beam buttresses 10 form a bending curve, and the curve steel beam pushing system comprises a steel beam 1, a curve track 2, a track buttress 3, a pulley 4, a connecting plate 5 with holes, a pushing plate 6, a bolt 7, a three-dimensional pushing jack 8, a pushing buttress 9, steel beam buttresses 10, an assembling support 11 and an ultrathin vertical jack 12.
Wherein a plurality of track buttresses 3 are arranged at two sides of the steel beam buttress 10 to form bending curves at two sides of the steel beam buttress 10, the radian of the bending curve formed by the track buttresses 3 is the same as that formed by the steel beam buttress 10, and the pushing buttresses 9 are arranged between the alternate steel beam buttresses 10.
The track buttress 3 and the pushing buttress 9 are both formed by steel pipe piles and profile steel, wherein the steel pipe piles are vertically arranged, the profile steel is transversely paved on the steel pipe piles to serve as a distribution beam 16 on the top layer of a temporary buttress, the temporary buttress is arranged on a temporary buttress foundation 17, the temporary buttress foundation 17 is in a reinforced concrete form, the temporary buttress foundation 17 is buried underground, and the upper surface of the temporary buttress foundation 17 is flush with the ground.
Installing a curved track 2 with a fixed curvature on a track buttress 3 to form a track on the side of a steel beam buttress 10, and arranging one track buttress 3 at certain intervals according to the length of the curved track 2 with the fixed curvature; three-dimensional jacking jacks 8 are fixedly mounted on the jacking buttress 9, a pair of three-dimensional jacking jacks 8 is arranged on each jacking buttress 9, and ultrathin vertical jacks 12 are fixedly mounted on the steel beam supporting beam 10.
1 bottom of girder steel is equipped with pulley 4 and foraminiferous connecting plate 5, wherein pulley 4 welds in 1 bottom of girder steel and arranges in on curved track 2, respectively weld the foraminiferous connecting plate 5 of twice logical length in the both sides of the bottom of girder steel 1, namely, the length of foraminiferous connecting plate 5 is the same with the length of girder steel 1, lie in the foraminiferous connecting plate 5 interval setting of twice with one side, foraminiferous connecting plate 5 is connected through bolt 7 with push-up plate 6, push-up plate 6 arranges in the passageway that foraminiferous connecting plate 5 formed twice in.
Erect at the both sides that are located the girder steel buttress 10 that the starting point was striden to the roof beam and assemble support 11, wherein assemble support (11) and constitute by the bracing and the stull of stand and channel-section steel, wherein the setting is erect to the stand, and the stull of channel-section steel is connected perpendicularly in the avris of stand, and the stull and the stand that are connected in the bracing slope of channel-section steel, assemble support 11's top side and lay angle steel and decorative pattern steel sheet, as constructor operation platform.
The pushing buttress 9 is arranged below the steel beam 1, the first pushing buttress 9 is arranged in the range of the steel beam assembling support 11, the second pushing buttress 9 is arranged in the middle of the beam span range of the steel beam 1, and the assembling support 11 is used for hoisting and welding the steel beam 1 and is positioned at the head part of the construction pushing section.
The ejector plate 6 is composed of an L-shaped steel plate 14 and three reinforcing triangular steel plates 15 with holes, and the reinforcing triangular steel plates 15 with holes are arranged on the L-shaped steel plate 14 at intervals to form a triangular block structure. The triangular steel plate with the hole 15 and the connecting plate with the hole 5 are provided with bolt holes 13, the triangular steel plate with the hole 15 and the bolt holes 13 on the connecting plate with the hole 5 are matched with each other, the width of the stress surface of the jacking plate 6 is larger than that of the three-dimensional jacking jack 8, and the three-dimensional jacking jack 8 jacks the jacking plate 6.
1 bottom of girder steel of 1 st unit (first) sets up 4 pulleys 4, and 1 bottom of girder steel of every 1 ~ 2 units sets up 2 pulleys 4, and pulley 4's position is located curved track 2 just.
The curved track 2 is composed of a steel rail combining a groove shape and an I shape.
The three-dimensional pushing jack 8 can not only lift upwards, but also push forwards, and can also horizontally correct the deviation, so that the three-dimensional pushing jack is suitable for pushing operation of curved bridges and accurately controls the trend of the bridges.
Specifically, the construction principle of the curve steel beam pushing system is as follows: hoisting a steel beam unit to an assembling support 11 by using a truck crane, preliminarily aligning the steel beam unit by using a temporary connecting plate, welding to form a steel beam 1, hanging a pulley 4 at the lower part of the first steel beam unit on a curve track 2 with a fixed curvature, placing an anti-slip wedge block behind the pulley 4 to temporarily fix the steel beam unit, bolting a jacking plate 6 to a perforated connecting plate 5 at the bottom of the steel beam 1 at the position of a first pair of three-dimensional jacking jacks 8, starting the three-dimensional jacking jacks 8 to jack the jacking plate 6, temporarily fixing the steel beam 1 by using the anti-slip wedge block after the jacking travels a full stroke, restoring the three-dimensional jacking jacks 8 to the original position, detaching the jacking plate 6, reinstalling the jacking plate 6 according to the position of the three-dimensional jacking jacks 8, and carrying out jacking operation. And repeating the steps, hoisting and welding the 2 nd and 3 rd steel beam units in sequence after the 1 st steel beam unit reaches the preset position, and starting a second pair of three-dimensional pushing jacks 8 on the pushing buttress 9 in the middle to perform pushing operation when the steel beam 1 reaches the middle part of the beam span.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a curve girder steel pushes away system for push away curve girder steel, wherein curve girder steel is arranged in on two at least girder steel buttresses (10), and a plurality of girder steel buttresses (10) form the bending curve, its characterized in that includes:
the device comprises a curved track (2), a track buttress (3), a pulley (4), a connecting plate (5) with a hole, a jacking plate (6), a three-dimensional jacking jack (8), a jacking buttress (9), an assembling bracket (11) and an ultrathin vertical jack (12);
the track support piers (3) are arranged on two side sides of the steel beam support pier (10) to form bending curves on two sides of the steel beam support pier (10), the pushing support piers (9) are arranged between the steel beam support piers (10) which are arranged alternately, the track support pier (3) is provided with a curve track (2) with a fixed curvature, the pushing support pier (9) is fixedly provided with a three-dimensional pushing jack (8), and the steel beam support pier (10) is fixedly provided with an ultrathin vertical jack (12);
the bottom of the steel beam (1) is provided with a pulley (4), wherein the pulley (4) is arranged on the curved track (2), two sides of the bottom of the steel beam (1) are respectively welded with two through-long connecting plates with holes (5), the connecting plates with holes (5) are connected with a pushing plate (6), a three-dimensional pushing jack (8) pushes the pushing plate (6), and two sides of a steel beam buttress (10) positioned at the initial part of the beam span are erected with an assembling support (11).
2. The curve steel beam pushing system according to claim 1, wherein the pushing buttresses (9) are arranged below the steel beam (1), the first pushing buttress (9) is arranged in the range of the steel beam assembling support (11), the second pushing buttress (9) is arranged in the middle of the beam span range of the steel beam (1), and the assembling support (11) is positioned at the head of the construction pushing section.
3. The curved steel beam jacking system according to claim 1, wherein the jacking plate (6) is composed of an L-shaped steel plate (14) and a reinforced perforated triangular steel plate (15), and the reinforced perforated triangular steel plate (15) is arranged on the L-shaped steel plate (14) at intervals.
4. The curved steel beam jacking system according to claim 3, wherein the perforated triangular steel plate (15) and the perforated connecting plate (5) are provided with bolt holes (13), and the bolt holes (13) of the perforated triangular steel plate (15) and the perforated connecting plate (5) are matched with each other.
5. The curved steel beam jacking system according to claim 1, wherein the track buttress (3) and the jacking buttress (9) are both made of steel pipe piles and profile steel, wherein the steel pipe piles are vertically arranged, and the profile steel is transversely paved on the steel pipe piles to serve as the distribution beam (16) of the top layer of the temporary buttress.
6. The curvilinear steel girder jacking system according to claim 1, wherein one track pier (3) is provided at regular intervals according to the length of the curvilinear track (2) of constant curvature.
7. The curved steel beam jacking system according to claim 1, wherein 4 pulleys (4) are arranged at the bottom of the steel beam (1) of the 1 st unit, and 2 pulleys (4) are arranged at the bottom of the steel beam (1) of every 1-2 units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021452511.4U CN212895948U (en) | 2020-07-21 | 2020-07-21 | Curved steel beam pushing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021452511.4U CN212895948U (en) | 2020-07-21 | 2020-07-21 | Curved steel beam pushing system |
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| CN212895948U true CN212895948U (en) | 2021-04-06 |
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| CN202021452511.4U Active CN212895948U (en) | 2020-07-21 | 2020-07-21 | Curved steel beam pushing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764300A (en) * | 2020-07-21 | 2020-10-13 | 安徽省交通建设股份有限公司 | Curved steel beam pushing system and construction method |
| CN113774813A (en) * | 2021-09-23 | 2021-12-10 | 中国建筑土木建设有限公司 | Traction deviation rectifying equipment convenient for installing large-section steel truss box girder |
-
2020
- 2020-07-21 CN CN202021452511.4U patent/CN212895948U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764300A (en) * | 2020-07-21 | 2020-10-13 | 安徽省交通建设股份有限公司 | Curved steel beam pushing system and construction method |
| CN111764300B (en) * | 2020-07-21 | 2022-03-25 | 安徽省交通建设股份有限公司 | Curved steel beam pushing system and construction method |
| CN113774813A (en) * | 2021-09-23 | 2021-12-10 | 中国建筑土木建设有限公司 | Traction deviation rectifying equipment convenient for installing large-section steel truss box girder |
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