CN110565502A - Folding bridge and use method thereof - Google Patents
Folding bridge and use method thereof Download PDFInfo
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- CN110565502A CN110565502A CN201910872279.5A CN201910872279A CN110565502A CN 110565502 A CN110565502 A CN 110565502A CN 201910872279 A CN201910872279 A CN 201910872279A CN 110565502 A CN110565502 A CN 110565502A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000013459 approach Methods 0.000 claims description 5
- 206010039203 Road traffic accident Diseases 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/124—Folding or telescopic bridges; Bridges built up from folding or telescopic sections
Abstract
The invention discloses a folding bridge and a using method thereof, and the folding bridge comprises at least two bridge units, wherein each bridge unit comprises a supporting platform, a plurality of supporting piers are arranged on the supporting platforms, and each supporting pier can slide along the supporting platform; the upper end surface of each supporting pier is provided with a main beam, each main beam is hinged with two bridge decks, the bridge decks between two adjacent supporting piers are hinged, the bridge decks on the outer sides of the two supporting piers at the two ends of the supporting platform are connected to a main tower through slings, and the main tower is fixed on the supporting platform; when two adjacent supporting piers are close to each other, two adjacent bridge deck boards are folded; when two adjacent supporting piers are far away, two adjacent bridge decks are unfolded; when the bridge decks of two adjacent bridge units are unfolded, the bridge decks between the two adjacent bridge units are butted. The invention can improve the traffic capacity of the campus landscape space and avoid traffic jam; people and motor vehicles on roads around the landscape are separated and pass, and traffic accidents are prevented.
Description
Technical Field
the invention belongs to the technical field of traffic bridges, and particularly relates to a folding bridge and a using method thereof.
Background
The campus landscape space is not only an important place for leisure, social contact and learning of teachers and students in schools, but also a carrier of school culture. With the change of education concepts and the diversification of the requirements of teachers and students, the campus landscape space design quality is more and more important, and the campus landscape planning also focuses more and more on the humanized requirements of teachers and students in schools in view of the development trend of the current campus planning. In addition, as the artificial lake has the advantages of beautifying the environment, adjusting microclimate and the like, the campus landscape space is often designed into a lake surface space with a certain area.
The campus landscape space belongs to a resident space, the accessibility of the campus landscape space is usually set at a secondary position in the road design, the internal road is more narrow and tortuous, the walking time is prolonged, and the traffic capacity is also reduced, the activities of teachers and students in the campus have the characteristics of integration and regularity, the people flow and traffic volume is relatively large in the peak period of going to and going from classes, and the campus landscape space usually influences the large-scale integration travel of teachers and students to cause traffic jam and large traffic pressure; roads around the landscape are usually lanes, so that the condition of mixed traveling of people and vehicles often occurs, and certain potential safety hazards exist.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a folding bridge and a using method thereof, which can improve the traffic capacity of campus landscape space, and can avoid traffic jam and relieve traffic pressure when the traffic volume of people and stream is relatively large in rush hours; people and motor vehicles on roads around the landscape are separated and pass, and traffic accidents are prevented.
In order to solve the technical problems, the invention solves the problems by the following technical scheme:
A folding bridge comprises at least two bridge units, each bridge unit comprises a support platform, a plurality of support piers are arranged on the support platforms, and each support pier can slide along the support platform; the upper end surface of each supporting pier is provided with a main beam, each main beam is hinged with two bridge decks, the bridge decks between two adjacent supporting piers are hinged, the bridge decks on the outer sides of the two supporting piers at the two ends of the supporting platform are connected to a main tower through slings, and the main tower is fixed on the supporting platform;
When two adjacent supporting piers are close to each other, two adjacent bridge deck boards are folded; when two adjacent supporting piers are far away, two adjacent bridge decks are unfolded;
When the bridge decks of two adjacent bridge units are unfolded, the bridge decks between the two adjacent bridge units are butted.
Furthermore, a sliding groove is formed in the supporting platform, the lower end of each supporting pier extends into the sliding groove, and a pulley matched with the sliding groove is arranged on the lower end face of each supporting pier.
Furthermore, the cross section of the support platform is fan-shaped, and the sliding groove is formed along the fan-shaped arc direction.
furthermore, the main tower is arranged on a connecting line between the midpoint of the sector arc and the center of the sector.
further, the bridge deck between two adjacent supporting piers is hinged through a hinge shaft.
Further, a driving device for driving the supporting piers to slide is arranged between every two adjacent supporting piers.
Furthermore, the driving device is a hydraulic machine which is fixed on the supporting platform; the telescopic rod end of the hydraulic machine is hinged with one end of each of two connecting rods, the other end of one connecting rod is hinged with one supporting pier, and the other end of the other connecting rod is hinged with the other supporting pier;
When the telescopic rod of the hydraulic press extends out, two adjacent supporting piers are driven to be far away through the connecting rod, and two adjacent bridge decks are unfolded; when the telescopic rod of the hydraulic press retracts, the two adjacent supporting piers are driven to be close through the connecting rod, and the two adjacent bridge panels are folded.
Furthermore, a platform ladder is further arranged on the support platform, the bottom of the platform ladder is fixedly connected with the support platform, and the top of the platform ladder extends to the bridge deck.
Furthermore, the girder is I-shaped steel, the upper end surface of the support pier is fixedly connected with the lower end surface of the I-shaped steel, and one side of the bridge deck is hinged to the upper end surface of the I-shaped steel.
a use method of a folding bridge comprises the following steps: when the bridge deck is required to be used, the control driving device drives the adjacent supporting piers to be away from each other, and the supporting piers drive the bridge deck to be unfolded; after the folding bridge deck is used, the control driving device drives the adjacent supporting piers to approach each other, and the supporting piers drive the bridge deck to fold.
Compared with the prior art, the invention has at least the following beneficial effects: the invention relates to a folding bridge, which is characterized in that at least two bridge units are arranged in resident space places such as campus landscape space, each bridge unit comprises a supporting platform, a plurality of supporting piers are arranged on the supporting platform, each supporting pier can slide along the supporting platform, the upper end surface of each supporting pier is provided with a main beam, each main beam is hinged with two bridge decks, the bridge decks between two adjacent supporting piers are hinged, the bridge decks on the outer sides of the two supporting piers at the two ends of the supporting platform are connected to a main tower through slings, the main tower is fixed on the supporting platform, and the slings play a role in reinforcing the bridge. Such structural design can realize folding and the expansion of bridge: when the pedestrian traffic volume is relatively large in the rush hour, two adjacent support piers are controlled to be away from each other, so that the bridge deck on the main beam hinged to the support piers is unfolded along with the distance of the support piers, when the bridge deck of two adjacent bridge units is unfolded, the bridge deck between the two adjacent bridge units is in butt joint, pedestrians can pass through the bridge deck quickly, traffic jam can be avoided, traffic pressure is relieved, pedestrians and motor vehicles on roads around the landscape can pass through the bridge deck in a separated mode, and traffic accidents are prevented; in other time periods, two adjacent support piers are controlled to be close to each other, so that the bridge deck on the main beam hinged on the support piers is folded along with the distance of the support piers, the lower space after the bridge deck is folded can be used for designing a sheltered rest place, namely a building ash space in an outdoor park, and matched facilities can be set according to requirements. Therefore, the folding bridge is formed by combining a plurality of small-span bridge units, can be spliced according to span requirements of different places, and greatly increases the universality and practicability of the bridge; building products are formed when the personnel are closed in sparse time, the bridge is integrated into the landscape, corresponding functionality is provided according to the requirements of all colleges and universities by utilizing the space formed after folding, and the residence function of the landscape space is effectively improved.
Furthermore, the spout has been seted up on a supporting bench, and in the lower extreme of every support pier all stretched into the spout, and every lower terminal surface of supporting the pier all was provided with the pulley that matches with the spout, realized the slip of supporting the pier through the cooperation of pulley spout, can effectively reduce the bridge and support the frictional resistance between pier and the supporting bench when expansion and folding, realized sliding smoothly of bridge support pier, improved the life of bridge.
Furthermore, the cross section of the support table is fan-shaped, the sliding grooves are formed in the direction of the fan-shaped circular arc, the opening and closing process of the main beam of the folding bridge can be completed along a small radius, the occupied area of the folding bridge in a crowd dense area or a park is reduced, and therefore the influence of the opening and closing of the bridge on the surrounding environment is reduced to the minimum degree.
Furthermore, the main tower is arranged on a connecting line between the middle point of the fan-shaped circular arc and the center of the fan-shaped circle, the stay cable and the main beam are always kept in the same plane in the opening and closing processes of the main beam, the stress state of the stay cable and the main beam is not greatly changed along with the movement of the beam, so that the stability of force transmission and the reliability of the whole structure are ensured, the occupied area of the folding bridge can be further reduced in the position, the stay cable and the main beam can share the foundation with a pier, and the whole bridge is stronger in integrity.
furthermore, the bridge deck between two adjacent supporting piers is hinged through the hinge shaft, so that the structure is simple, the installation is convenient, and the construction is easy.
Furthermore, the driving device is a hydraulic machine which is fixed on the support table, when a telescopic rod of the hydraulic machine extends out, two adjacent support piers are driven to be far away through the connecting rod, and two adjacent bridge decks are unfolded; when the telescopic rod of the hydraulic press retracts, the two adjacent supporting piers are driven to be close through the connecting rod, and the two adjacent bridge decks are folded, so that the expansion and the folding of the bridge are conveniently controlled and realized.
further, be provided with the platform ladder on a supporting bench, the bottom and a supporting bench fixed connection of platform ladder, the top stretches to the decking, makes things convenient for the pedestrian to step on the decking through the stage body.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a folded deck structure of the present invention;
FIG. 2 is a front view of the deck structure of the present invention after deployment;
FIG. 3 is a front view of the unfolded full bridge configuration of the present invention;
FIG. 4 is a top plan view of the unfolded full bridge configuration of the present invention;
FIG. 5 is a left side view of the unfolded full bridge configuration of the present invention;
Fig. 6 is a front view of the folded full bridge configuration of the present invention.
FIG. 7 is a top view of the folded full bridge configuration of the present invention;
FIG. 8 is a left side view of the folded full bridge configuration of the present invention;
FIG. 9 is a front view of the folding power system in an unfolded state;
FIG. 10 is a top plan view of the folded power system in an unfolded state;
FIG. 11 is a front view of the folding power system in a closed state;
FIG. 12 is a top plan view of the folding powertrain in a closed state.
In the figure: 1-a main beam; 2-supporting piers; 3-a bridge deck; 4-hinge axis; 5-a sling; 6-a main column; 7-a support table; 8-a chute; 9-a ladder; 10-a drive device; 11-connecting rod.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
as a preferred embodiment of the present invention, the folding bridge of the present invention comprises at least two bridge units, as shown in fig. 3 to 8, each bridge unit comprises a support platform 7, a plurality of support piers 2 are disposed on the support platform 7, and each support pier 2 can slide along the support platform 7, preferably, the cross section of the support platform 7 has a sector shape with an angle of 90 °. Support mound 2 and show as figure 4 and figure 7 along the gliding concrete structural design of brace table 7, seted up spout 8 on brace table 7, spout 8 is seted up along fan-shaped circular arc direction, and in the lower extreme of every support mound 2 all stretched into spout 8, and every lower terminal surface of supporting mound 2 all was provided with the pulley that matches with spout 8.
As shown in fig. 3 to 8, the upper end surface of each support pier 2 is fixedly connected with a main beam 1, each main beam 1 is hinged with two bridge decks 3, and the bridge decks 3 between two adjacent support piers 2 are hinged, specifically, the main beam 1 is an i-shaped steel, the upper end surface of each support pier 2 is fixedly connected with the lower end surface of the i-shaped steel, and one side of each bridge deck 3 is hinged with the upper end surface of the i-shaped steel; the bridge deck 3 between two adjacent piers 2 is hinged by hinge shaft 4, hinge shaft 4 being similar to the hinge connecting the door frame and the door leaf. A main tower 6 is fixedly mounted on the support platform 7, and the bridge decks 3 positioned on the outer sides of the two support piers 2 at both ends of the support platform 7 are connected to the main tower 6 through slings 5. Preferably, as shown in fig. 4 and 7, the main tower 6 is disposed on a line connecting the midpoint of the circular arc of the sector and the center of the sector. The support platform 7 is further provided with a platform ladder 9, the bottom of the platform ladder 9 is fixedly connected with the support platform 7, the top of the platform ladder 9 extends to the bridge deck 3, and when the bridge deck is unfolded, pedestrians can step on the bridge deck through the platform ladder 9.
A driving device 10 for driving the supporting piers 2 to slide is arranged between two adjacent supporting piers 2, specifically, as shown in fig. 9 to 12, the driving device 10 is a hydraulic machine which is fixed on the supporting table 7, a telescopic rod end of the hydraulic machine is hinged with one end of two connecting rods 11, the other end of one connecting rod 11 is hinged with one supporting pier 2, and the other end of the other connecting rod 11 is hinged with the other supporting pier 2.
As shown in fig. 9 and 10, when the telescopic rod of the hydraulic press is extended, the telescopic rod drives two adjacent supporting piers 2 to be far away through the connecting rod 11, and two adjacent bridge deck boards 3 are unfolded to form a bridge deck for pedestrians to pass through. As shown in fig. 11 and 12, when the telescopic rod of the hydraulic machine is retracted, the telescopic rod drives two adjacent support piers 2 close by the connecting rod 11, and two adjacent bridge decks 3 are folded.
Referring to fig. 2 and 10, when the bridge of the present invention is needed, the telescopic rod of the driving device 10 is controlled to extend out, so as to drive the adjacent supporting piers 2 to slide away along the sliding groove 8, the distance of the supporting piers 2 can drive the bridge deck 3 to expand to form a bridge deck, and the bridge deck 3 between two adjacent bridge units can be completely butted after being expanded to form a bridge crossing the water surface.
After use, as shown in fig. 1 and 12, the telescopic rod of the driving device 10 is controlled to retract, so as to drive the adjacent supporting piers 2 to slide and approach along the sliding groove 8, the approach of the supporting piers 2 can drive the bridge deck 3 to fold, and the two bridge deck 3 hinged between the two adjacent supporting piers 2 through the hinge shaft 4 folds upwards.
in a preferred embodiment of the invention:
The main beams 1 adopt steel main beams as cantilever beams to support the bridge deck 3, and the two steel main beams at the outermost edges are suspended to the top of a main tower 6 by steel cables. The embodiment comprises four bridge units, each bridge unit comprises nine bridge deck boards 3, and the bridge deck boards 3 can be folded upwards at the steel girders and can be folded downwards at the hinge shafts 4. The unfolding and folding of the bridge adopt an electric hydraulic rod as a power device, the power device is arranged on the support table 7, and the type is YTZ1000-/110 electro-hydraulic push rod so as to be suitable for reciprocating push-pull linear motion, provide 1000kgf push force and 750kgf pull force and meet the structural stress requirement.
The bridge deck plates 3 in the embodiment have different lengths, the longest beam is stressed by using a stay cable, the rest beams are single cantilever beams, the length of a single bridge is 15m, and the length of the bridge deck plates 3 of four bridge units after being unfolded, combined and spliced is 62 m. The bridge deck 3 is made of steel plate and has a thickness of 20 mm.
The main tower is 6m high, and main part atress component cross-sectional shape is the cylinder, adopts steel pipe concrete material, and the cable tower adopts C50 micro-expansion concrete, exerts the hoop prestressing force to the core concrete through the steel pipe, and the external molding is spiral rising formula geometry concatenation molding, shields outside the cylinder through the sheet steel, does not participate in the atress.
the diameter of the stay cable is 45mm, the stay cable is made of 1860 steel strands, and the elastic modulus is 1.95x108kN/m2, Poisson's ratio of 0.3, coefficient of linear expansion of 1.2x10-51/[C]and a weight of 78.5kN/m3Damping ratio 0.02. The cable arranges in the longest roof beam outside, can not exert an influence to the bridge floor headroom, so can not have negative effects to pedestrian's current.
The girder 1 is an I-shaped steel girder, and ribbed plates at the section change part are thickened to meet the stress requirement of large bending moment.
The foundation for bridge installation adopts cast-in-place bored piles, and the total 2x2 is 4 piles, the length of the pile is 14m, the diameter of the pile is 0.8m, the distance between the centers of the piles is 2.5m in the longitudinal direction of the bridge, and the distance between the centers of the piles is 2.5m in the transverse direction of the bridge. The support table 7 is 2m thick, 4.5m wide along the bridge direction and 4.5m wide along the bridge direction.
The cable-stayed cantilever combined system bridge is a combined system consisting of a high-strength steel cable (stay cable), a main tower and a main beam. The longest girder at the outer side is suspended by utilizing the inclined guy cable led out from the tower column, and the guy cable provides multi-point elastic support, so that the bending moment and the deflection of the girder are obviously reduced, and the spanning capability of the bridge is improved. Meanwhile, the building height is small, the main beam is light and handy, the requirement of under-bridge clearance can be fully met, the appearance of the bridge is attractive, the stress is reasonable, the horizontal component of the tension of the inclined cable provides the pre-throwing height for the main beam, and the deformation resistance of the main beam can be improved.
The construction method of the embodiment is as follows:
1. Constructing a steel pile foundation:
Measuring and positioning and paying-off → installing a pile machine → moving the pile machine to be in place → hanging a pile → inserting a pile → hammering and sinking → connecting a pile → hammering to the designed depth → internally cutting a steel pile → finely cutting → putting a cap
2. Bridge main body construction:
the method comprises the following steps of power device setting → steel pipe concrete tower column construction → temporary support erection → steel truss transportation → cantilever beam hoisting → bridge deck assembly (including parametric slab shell assembly) → temporary support dismantling.
The invention can be applied to urban construction, and can be well hidden in urban buildings due to the standardization of components and the integration of structures and the smaller expansion path and occupied area caused by the special structure, thereby better solving the problems of influence on height limitation of road traffic and transportation, blockage of driver sight and the like caused by the lower height of the pedestrian overpass in the city.
specifically, in urban construction, functional organization and traffic planning are the first solutions to be solved in design. Based on the structural characteristics of the foldable bridge, under the big data era, the foldable bridge has at least two functional attributes of business and traffic, so that the complexity of city functional organization and traffic planning can be greatly reduced, the potential contradiction between the business and the traffic can be effectively coordinated, the multifunctional composite application of city space (such as the application of peak-off travel in different time periods) is realized, the city efficiency is improved, and the development of a tough city is facilitated.
In the future commercial operation popularization, the business complex with large scale and numerous business models has more complex and more important industrial layout and dynamic line planning. Therefore, the foldable bridge with complex functions and flexible elasticity has full development potential around similar functional areas such as urban business complexes and the like. Moreover, the particularity of the working principle of the foldable bridge can make the foldable bridge become a unique landscape in a city, the foldable bridge has great promotion effect on the commercial functions of the commercial complex (or similar functional areas) and the like, and the foldable bridge has great commercial value under the function radiation of the commercial complex.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a folding bridge, its characterized in that: the device comprises at least two bridge units, each bridge unit comprises a support platform (7), a plurality of supporting piers (2) are arranged on the support platforms (7), and each supporting pier (2) can slide along the support platform (7); the upper end surface of each supporting pier (2) is provided with a main beam (1), each main beam (1) is hinged with two bridge deck plates (3), the bridge deck plates (3) between two adjacent supporting piers (2) are hinged, the bridge deck plates (3) on the outer sides of the two supporting piers (2) at the two ends of the supporting platform (7) are connected to a main tower (6) through slings (5), and the main tower (6) is fixed on the supporting platform (7);
When two adjacent supporting piers (2) are close to each other, two adjacent bridge deck plates (3) are folded; when two adjacent supporting piers (2) are far away, two adjacent bridge deck plates (3) are unfolded;
when the bridge deck plates (3) of two adjacent bridge units are unfolded, the bridge deck plates (3) between the two adjacent bridge units are butted.
2. The folding bridge according to claim 1, wherein: the supporting platform (7) is provided with a sliding groove (8), the lower end of each supporting pier (2) extends into the sliding groove (8), and the lower end face of each supporting pier (2) is provided with a pulley matched with the sliding groove (8).
3. The folding bridge according to claim 2, wherein: the cross section of the supporting platform (7) is fan-shaped, and the sliding groove (8) is formed in the fan-shaped arc direction.
4. The folding bridge according to claim 3, wherein: the main tower (6) is arranged on a connecting line between the midpoint of the fan-shaped arc and the center of the fan-shaped circle.
5. The folding bridge according to claim 1, wherein: the bridge deck (3) between two adjacent supporting piers (2) is hinged through a hinge shaft (4).
6. The folding bridge according to claim 1, wherein: and a driving device (10) for driving the supporting piers (2) to slide is arranged between every two adjacent supporting piers (2).
7. The folding bridge of claim 6, wherein: the driving device (10) is a hydraulic machine which is fixed on the supporting table (7); the telescopic rod end of the hydraulic machine is hinged with one end of two connecting rods (11), the other end of one connecting rod (11) is hinged with one supporting pier (2), and the other end of the other connecting rod (11) is hinged with the other supporting pier (2);
When the telescopic rod of the hydraulic press extends out, the two adjacent supporting piers (2) are driven to be far away through the connecting rod (11), and the two adjacent bridge decks (3) are unfolded; when the telescopic rod of the hydraulic press retracts, the two adjacent supporting piers (2) are driven to approach through the connecting rod (11), and the two adjacent bridge decks (3) are folded.
8. The folding bridge according to claim 1, wherein: the supporting platform (7) is further provided with a platform ladder (9), the bottom of the platform ladder (9) is fixedly connected with the supporting platform (7), and the top of the platform ladder extends to the bridge deck (3).
9. The folding bridge according to claim 1, wherein: the girder (1) is I-shaped steel, the upper end face of the support pier (2) is fixedly connected with the lower end face of the I-shaped steel, and one side of the bridge deck (3) is hinged to the upper end face of the I-shaped steel.
10. The method of using a folding bridge according to any of claims 1 to 9, wherein: when the bridge deck is required to be used, the driving device (10) is controlled to drive the adjacent supporting piers (2) to be away from each other, and the supporting piers (2) drive the bridge deck (3) to be unfolded; after the use, the control driving device (10) drives the adjacent supporting piers (2) to approach each other, and the supporting piers (2) drive the bridge deck (3) to fold.
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| CN201910872279.5A CN110565502B (en) | 2019-09-16 | 2019-09-16 | Folding bridge and application method thereof |
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| CN206736700U (en) * | 2017-05-27 | 2017-12-12 | 云南公投建设集团隧道工程有限公司 | mobile telescopic bridge |
| CN108166377A (en) * | 2017-12-07 | 2018-06-15 | 四川建筑职业技术学院 | A kind of folding combined temporary bridge device |
| CN108018773A (en) * | 2017-12-13 | 2018-05-11 | 李清花 | A kind of self-propelled telescopic interim overline bridge |
| CN109137717A (en) * | 2018-10-29 | 2019-01-04 | 王春阳 | A kind of collapsible emergency bridge |
| CN109371809A (en) * | 2018-10-30 | 2019-02-22 | 于振海 | A kind of bridge construction temporarily builds portable folding footbridge structure |
| CN210946448U (en) * | 2019-09-16 | 2020-07-07 | 长安大学 | Bridge capable of being unfolded and folded |
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