CN105839549A - Truss type cantilever construction hanging basket - Google Patents
Truss type cantilever construction hanging basket Download PDFInfo
- Publication number
- CN105839549A CN105839549A CN201610339076.6A CN201610339076A CN105839549A CN 105839549 A CN105839549 A CN 105839549A CN 201610339076 A CN201610339076 A CN 201610339076A CN 105839549 A CN105839549 A CN 105839549A
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- hanging basket
- bailey
- truss
- main
- hanging
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000004873 anchoring Methods 0.000 claims abstract description 17
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 210000002435 tendon Anatomy 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a truss type cantilever construction hanging basket. The hanging basket comprises a main truss bearing system, a limiting anchoring system, a suspension system, a walking system and a hanging basket template system. The main truss bearing system comprises Bailey beam main trusses, a front upper transverse beam, a rear upper transverse beam and a transverse connector. The Bailey beam main trusses at the two sides are connected to form a whole body through the transverse beams. The main trusses of the hanging bracket are the Bailey beam main trusses; assembling type Bailey beams are used as main stressing components and can be adaptive to different structure sizes through adjusting the distance between the Bailey beam main trusses and positions of rear anchoring points. By increasing the quantity and layer quantity of Bailey sheets, the rigidity of the hanging basket is improved; with regard to a bridge with great self weight and large span, the rigidity of the front transverse beam is enhanced through increasing the quantity of the rear anchoring points so as to be adaptive to bridges with different sizes and spans. The truss type cantilever construction hanging basket has the advantages of convenience in operation and construction, good stability, rapidness in construction and the like. Compared with a traditional customized hanging basket, the construction period of the single set of hanging basket is shortened by about one half and the cost is saved by about one half.
Description
Technical Field
The invention belongs to the technical field of bridge hanging basket cantilever construction, and particularly relates to a truss type cantilever construction hanging basket.
Background
The construction of the hanging basket is a common construction method without a support at present, and the application range of the hanging basket is very wide. The hanging basket variety of cantilever construction is also many, and the hanging basket form commonly used mainly has: a rhombic hanging basket, a triangular hanging basket and a truss type hanging basket. No matter what form of hanging basket is adopted, the technical principle is that the continuous truss girder is converted into the cantilever truss girder, so that the stress state in the construction process is consistent with the stress state in the operation period, and powerful support is provided for the construction without a support.
The utility model discloses a utility model patent that the grant publication number is CN 203049458U discloses a bridge construction is with hanging basket, it includes the girder and is used for fixed main longeron in the counter-pressure roof beam of pontic to hang the basket, its characterized in that main longeron is isosceles triangle's triangular prism for the bottom surface, is provided with the connecting rod between the adjacent both sides arris of triangular prism. The hanging basket has the defects of high manufacturing cost, troublesome installation and disassembly and low repeated utilization rate for a shaped product.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the truss type cantilever construction hanging basket, the rigidity of the hanging basket is ensured by reasonably arranging the space between the main trusses of the hanging basket and the rear anchor point position and increasing the number and the number of layers of Bailey sheets of the main trusses, and the hanging basket can adapt to different types of beam lengths and beam widths.
In order to achieve the purpose, the invention adopts the following technical scheme.
A truss-type cantilever construction cradle, comprising: the main truss type steel truss framework comprises a main truss bearing system, a limiting anchoring system, a suspension system, a walking system and a hanging basket template system. Wherein,
the main truss load-bearing system includes: the beam comprises a Bailey beam main truss, a front upper cross beam, a rear upper cross beam and a transverse connection. The Bailey beam main trusses positioned on two sides are connected into a whole through the front upper cross beam, the rear upper cross beam and the transverse connection.
Spacing anchor system includes: anchor beam, anchor bar. The anchoring beam is arranged above the Bailey beam main truss, and the Bailey beam main truss is anchored on the vertical prestressed tendons of the poured and stretched beam sections through the anchor tendons.
The suspension system comprises: front and back hanging strips, a longitudinal sliding beam and a bottom die supporting beam. The longitudinal sliding beam provides a supporting platform for the hanging basket template system and can synchronously slide forwards with the Bailey beam main truss through the front and rear hanging strips. The bottom die joist is a main plane stress structure for suspending the bottom die of the box girder bottom plate of the hanging basket template system.
The walking system comprises: the hydraulic lifting device comprises a rail, left-hand thread wheels walking along the rail, a hydraulic jack providing walking power and a hydraulic jack bearing plate. The hydraulic jack is arranged above the track and pulls the back left-hand thread wheel to slide forwards through the steel strand.
Hang basket template system includes: the box girder comprises a box girder web plate outer side die, a box girder top plate inner top die and a box girder bottom plate bottom die.
Furthermore, the number of the Bailey beam main trusses is 2, each Bailey beam main truss is at least composed of 3 rows of Bailey beams, and each row of Bailey beams is formed by splicing 4 Bailey sheets.
Furthermore, different structural sizes are adapted by adjusting the distance between the Bailey beam main trusses and the position of a rear anchor point of the limiting anchoring system; the rigidity of the hanging basket is improved by increasing the number and the number of layers of the bailey pieces; the rigidity of the front upper cross beam and the rear upper cross beam is enhanced by increasing the number of rear anchor points.
Further, the longitudinal sliding beam comprises an inner longitudinal sliding beam and an outer longitudinal sliding beam.
Further, the longitudinal sliding beam is made of I32I-shaped steel.
Furthermore, the bottom die joist is made of I32I-shaped steel.
Furthermore, the anchor bars adopt phi 32 prestressed bars.
Furthermore, the front and rear hanging strips are made of phi 32 fine-rolled deformed steel, and the outer layer of the front and rear hanging strips is wrapped by a polyethylene insulating protective sleeve.
Compared with the prior art, the invention has the following beneficial effects:
according to the truss type cantilever construction hanging basket provided by the invention, the main truss is a Bailey beam main truss, the assembled Bailey beam is adopted as a main stress component, and the distance between the Bailey beam main trusses and the position of the rear anchor point can be adjusted to adapt to different types of beam lengths and beam widths. For a bridge with large self weight and span, the rigidity of the hanging basket is improved by increasing the number of the bailey pieces and the number of layers; the rigidity of the front cross beam is enhanced by increasing the number of the rear anchor points so as to adapt to bridges of different sizes and spans. The method has the advantages of convenient operation and construction, good stability, rapid construction and the like. Compared with the traditional customized hanging basket, the construction period of the single set of hanging basket is shortened by nearly one half, and the cost is saved by nearly one half.
Drawings
FIG. 1 is a schematic structural view of a primary truss load bearing system;
FIG. 2 is a schematic structural view of a suspension system and a hanging basket formwork system;
FIG. 3 is a schematic structural view of an anchoring system and a walking system;
fig. 4 is a side view of the construction of the bailey beam truss type cradle.
In the figure: 11-Bailey beam main truss, 12-front upper beam, 13-rear upper beam, 14-cross connection, 21-anchoring beam, 22-anchor bar, 31-front and rear hanging strip, 32-longitudinal sliding beam, 33-bottom die joist, 41-track, 42-reverse buckle wheel, 43-hydraulic jack, 44-hydraulic jack bearing plate, 51-box beam web plate outer side die, 52-box beam top plate inner top die and 53-box beam bottom plate bottom die.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
The utility model provides a truss-like cantilever construction hanging basket, its structure is shown as figure 1 ~ 4, includes: the main truss type steel truss framework comprises a main truss bearing system, a limiting anchoring system, a suspension system, a walking system and a hanging basket template system. Wherein,
the main truss load-bearing system includes: the beam comprises a Bailey beam main truss 11, a front upper cross beam 12, a rear upper cross beam 13 and a transverse link 14. The Bailey beam main trusses 11 on two sides are connected into a whole through a front upper cross beam 12, a rear upper cross beam 13 and a transverse connection 14.
Spacing anchor system includes: anchor beam 21, anchor bar 22. The anchoring beam 21 is arranged above the Bailey beam main truss 11, and the Bailey beam main truss 11 is anchored on the vertical prestressed tendons of the poured and tensioned beam sections through the anchor tendons 22. The limiting anchoring system is mainly used for anchoring and limiting the cradle. In order to prevent the hanging basket from overturning and shifting, the setting of the rear anchor point is calculated and designed according to the characteristics of the bridge, the Bailey beam main truss 11 and the finished beam section vertical prestressed tendons are connected to be used as the rear anchor point, and therefore construction operation is convenient.
The suspension system comprises: front and rear straps 31, a longitudinal slide beam 32, and a bottom die joist 33. The longitudinal sliding beam 32 provides a supporting platform for the hanging basket template system and can synchronously slide forwards with the Bailey beam main truss 11 through the front and rear hanging strips 31. The front and rear straps 31 are a main part of the transmission of force, and transmit the force received by the lower die joists 33 to the front upper cross member 12 and the rear upper cross member 13. The bottom die joist 33 is a main plane stress structure suspending the bottom die 53 of the hanging basket formwork system, and is used for lifting and walking the bottom die 53.
The walking system comprises: the hydraulic lifting device comprises a rail 41, a left-hand thread wheel 42 walking along the rail 41, a hydraulic jack 43 providing walking power and a hydraulic jack bearing plate 44, wherein the hydraulic jack 43 is arranged above the rail 41, and the left-hand thread wheel 42 behind is pulled by a steel strand to slide forwards.
Hang basket template system includes: the box girder comprises a box girder web plate outer side die 51, a box girder top plate inner top die 52 and a box girder bottom plate bottom die 53. The box girder web outer side die 51 is used for outer side web concrete forming; the box girder top plate inner top die 52 is used for top plate concrete forming, and the box girder bottom plate bottom die 53 is used for bottom plate concrete forming. All the templates adopt high-strength bamboo rubber plates special for bridges, the templates of the cantilever construction section adopt customized steel templates, and the steel templates and the hanging baskets walk synchronously.
The number of the Bailey beam main trusses 11 is 2, each Bailey beam main truss 11 at least comprises 3 rows of Bailey beams, and each row of Bailey beams is formed by splicing 4 Bailey sheets.
Preferably, the adjustment of the distance between the main trusses 11 of the beret beam and the position of the rear anchor point of the limit anchoring system can adapt to different structural dimensions (beam length and beam width). For a bridge with large self weight and span, the rigidity of the hanging basket is improved by increasing the number of the bailey pieces and the number of layers; the rigidity of the front upper cross beam 12 and the rear upper cross beam 13 is enhanced by increasing the number of rear anchor points so as to adapt to bridges of different sizes and spans.
The longitudinal slide beam 32 includes an inner longitudinal slide beam and an outer longitudinal slide beam.
The longitudinal sliding beam is made of I32I-shaped steel.
The bottom die joist 33 is made of I32I-shaped steel.
The anchor bars 22 adopt phi 32 prestressed bars.
The front and rear braces 31 are made of phi 32 fine-rolled deformed steel, and the outer layer of the front and rear braces is wrapped by a polyethylene insulating protective sleeve.
The hanging basket provided by the invention can be widely applied to the field of bridge construction of cantilever cast-in-place and hoisting. The on-site construction proves that the method has the advantages of convenience in operation and construction, good stability, quickness in construction and the like. Compared with the traditional hanging basket, the construction period of the single hanging basket is shortened by nearly one half, and the cost is saved by nearly one half.
The present invention is not limited to the above-described embodiments, and any obvious modifications or alterations to the above-described embodiments may be made by those skilled in the art without departing from the spirit of the present invention and the scope of the appended claims.
Claims (8)
1. The utility model provides a truss-like cantilever construction hangs basket which characterized in that includes: the main truss type steel truss structure comprises a main truss bearing system, a limiting anchoring system, a suspension system, a walking system and a hanging basket template system; wherein,
the main truss load-bearing system includes: the structure comprises a Bailey beam main truss (11), a front upper cross beam (12), a rear upper cross beam (13) and a transverse connection (14); the Bailey beam main trusses (11) positioned on two sides are connected into a whole through a front upper cross beam (12), a rear upper cross beam (13) and a transverse connection (14);
spacing anchor system includes: an anchoring beam (21), an anchor bar (22); the anchoring beam (21) is arranged above the Bailey beam main truss (11), and the Bailey beam main truss (11) is anchored on the vertical prestressed tendons of the beam section which is poured and tensioned through the anchor tendons (22);
the suspension system comprises: front and rear hanging strips (31), a longitudinal slide beam (32) and a bottom die joist (33); the longitudinal sliding beam (32) provides a supporting platform for the hanging basket template system and can synchronously slide forwards with the Bailey beam main truss (11) through the front and rear hanging strips (31); the bottom die joist (33) is a main plane stress structure for suspending the bottom die (53) of the box girder bottom plate of the hanging basket template system;
the walking system comprises: the device comprises a rail (41), a reverse buckling wheel (42) walking along the rail (41), a hydraulic jack (43) providing walking power and a hydraulic jack bearing plate (44); the hydraulic jack (43) is arranged above the track (41) and pulls the back reverse buckle wheel (42) to slide forwards through the steel strand;
hang basket template system includes: the box girder comprises a box girder web plate outer side die (51), a box girder top plate inner top die (52) and a box girder bottom plate bottom die (53).
2. The hanging basket according to claim 1, wherein the number of the Bailey beam main trusses (11) is 2, each Bailey beam main truss (11) at least comprises 3 rows of Bailey beams, and each row of Bailey beams is formed by assembling 4 Bailey sheets.
3. Hanging basket according to claim 2, characterized in that different structural dimensions are adapted by adjusting the spacing of the bailey beam main trusses (11) and the position of the rear anchor points of the limit anchoring system; the rigidity of the hanging basket is improved by increasing the number and the number of layers of the bailey pieces; the rigidity of the front upper cross beam (12) and the rear upper cross beam (13) is enhanced by increasing the number of rear anchor points.
4. Hanging basket according to claim 1, characterized in that the longitudinal sliding beam (32) comprises an inner longitudinal sliding beam and an outer longitudinal sliding beam.
5. Hanging basket according to claim 1, characterized in that the longitudinal sliding beam (32) is I32I-steel.
6. The hanging basket according to claim 1, characterized in that the bottom die joist (33) is made of I32I-steel.
7. Hanging basket according to claim 1, characterized in that the anchor tendons (22) are phi 32 tendons.
8. Hanging basket according to claim 1, characterized in that the front and rear straps (31) are made of phi 32 fine-rolled thread steel, and the outer layer is wrapped with a polyethylene insulating protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339076.6A CN105839549A (en) | 2016-05-20 | 2016-05-20 | Truss type cantilever construction hanging basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339076.6A CN105839549A (en) | 2016-05-20 | 2016-05-20 | Truss type cantilever construction hanging basket |
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| CN105839549A true CN105839549A (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610339076.6A Pending CN105839549A (en) | 2016-05-20 | 2016-05-20 | Truss type cantilever construction hanging basket |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103948A (en) * | 2017-12-25 | 2018-06-01 | 中交路桥华南工程有限公司 | Erection crane and thereafter anchor device |
| CN108999095A (en) * | 2018-09-28 | 2018-12-14 | 广东博昊实业集团有限公司 | A kind of more truss-like supper wide type hanging basket for bridge construction |
| CN109457628A (en) * | 2019-01-18 | 2019-03-12 | 郑州大学 | A kind of novel rhombus Hanging Basket |
| CN109667228A (en) * | 2019-01-24 | 2019-04-23 | 中铁十六局集团第五工程有限公司 | A kind of straight beam formula Hanging Basket and continuous beam cantilever pouring construction method |
| CN110080121A (en) * | 2019-04-16 | 2019-08-02 | 中铁建设集团有限公司 | A kind of Hanging Basket up-link and construction method |
| CN110553595A (en) * | 2019-07-24 | 2019-12-10 | 南昌工程学院 | Rhombic hanging basket construction monitoring method based on fiber bragg grating integration technology |
| CN110700119A (en) * | 2019-08-02 | 2020-01-17 | 中铁建设集团北京工程有限公司 | Upper traveling system of assembled Bailey beam hanging basket and design method thereof |
| CN112323647A (en) * | 2020-10-29 | 2021-02-05 | 德州市公路工程总公司 | Rigid frame bridge hanging basket suspension casting system and construction method thereof |
| CN112627060A (en) * | 2020-12-30 | 2021-04-09 | 中国建筑土木建设有限公司 | Side-span cast-in-place section cantilever bearing system and construction method thereof |
| CN112900287A (en) * | 2021-03-11 | 2021-06-04 | 中铁十六局集团第五工程有限公司 | Cantilever perfusion bridge fabrication machine |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103948A (en) * | 2017-12-25 | 2018-06-01 | 中交路桥华南工程有限公司 | Erection crane and thereafter anchor device |
| CN108999095A (en) * | 2018-09-28 | 2018-12-14 | 广东博昊实业集团有限公司 | A kind of more truss-like supper wide type hanging basket for bridge construction |
| CN109457628A (en) * | 2019-01-18 | 2019-03-12 | 郑州大学 | A kind of novel rhombus Hanging Basket |
| CN109667228B (en) * | 2019-01-24 | 2024-02-02 | 中铁十六局集团第五工程有限公司 | Straight beam type hanging basket and continuous beam cantilever pouring construction method |
| CN109667228A (en) * | 2019-01-24 | 2019-04-23 | 中铁十六局集团第五工程有限公司 | A kind of straight beam formula Hanging Basket and continuous beam cantilever pouring construction method |
| CN110080121A (en) * | 2019-04-16 | 2019-08-02 | 中铁建设集团有限公司 | A kind of Hanging Basket up-link and construction method |
| CN110080121B (en) * | 2019-04-16 | 2024-03-22 | 中铁建设集团有限公司 | Hanging basket uplink system and construction method |
| CN110553595A (en) * | 2019-07-24 | 2019-12-10 | 南昌工程学院 | Rhombic hanging basket construction monitoring method based on fiber bragg grating integration technology |
| CN110700119A (en) * | 2019-08-02 | 2020-01-17 | 中铁建设集团北京工程有限公司 | Upper traveling system of assembled Bailey beam hanging basket and design method thereof |
| CN110700119B (en) * | 2019-08-02 | 2024-04-19 | 中铁建设集团北京工程有限公司 | Design construction method of walking system on assembled bailey beam hanging basket |
| CN112323647B (en) * | 2020-10-29 | 2022-05-03 | 德州市公路工程总公司 | Rigid frame bridge hanging basket suspension casting system and construction method thereof |
| CN112323647A (en) * | 2020-10-29 | 2021-02-05 | 德州市公路工程总公司 | Rigid frame bridge hanging basket suspension casting system and construction method thereof |
| CN112627060A (en) * | 2020-12-30 | 2021-04-09 | 中国建筑土木建设有限公司 | Side-span cast-in-place section cantilever bearing system and construction method thereof |
| CN112900287A (en) * | 2021-03-11 | 2021-06-04 | 中铁十六局集团第五工程有限公司 | Cantilever perfusion bridge fabrication machine |
| CN112900287B (en) * | 2021-03-11 | 2023-01-24 | 中铁十六局集团第五工程有限公司 | Cantilever perfusion bridge fabrication machine |
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Application publication date: 20160810 |
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