CN110468680B - Novel combined prefabricated assembled corrugated steel plate arch bridge and construction process thereof - Google Patents
Novel combined prefabricated assembled corrugated steel plate arch bridge and construction process thereof Download PDFInfo
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- CN110468680B CN110468680B CN201910887605.XA CN201910887605A CN110468680B CN 110468680 B CN110468680 B CN 110468680B CN 201910887605 A CN201910887605 A CN 201910887605A CN 110468680 B CN110468680 B CN 110468680B
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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
- E01D4/00—Arch-type bridges
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Abstract
The invention relates to the technical field of arch bridges, in particular to a novel combined prefabricated assembled corrugated steel plate arch bridge and a construction process thereof, wherein the construction process comprises the following steps: the first precast concrete plate, the second precast concrete plate, the first corrugated steel plate arch, the second corrugated steel plate arch, the connecting block and the connecting assembly; connecting block fixing grooves are formed in the first precast concrete plate and the second precast concrete plate, and the connecting blocks are connected with the steel plate arch springing and clamped in the connecting block fixing grooves; the connecting assembly is arranged at the arch tops of the first corrugated steel plate arch and the second corrugated steel plate arch and used for connecting the first corrugated steel plate arch and the second corrugated steel plate arch to form a complete arch bridge structure; and the guide grooves and the guide blocks are arranged on the opposite sides of the first precast concrete plate and the second precast concrete plate, and the guide grooves are butted with the guide blocks. The structural design can adapt to various complex terrains, large settlement, deformation and different roadbed filling heights, the formed components can be assembled on site, the manufacturing process is simple, and the manufacturing cost is low.
Description
Technical Field
The invention relates to the technical field of arch bridges, in particular to a novel combined prefabricated assembled corrugated steel plate arch bridge and a construction process thereof.
Background
The arch bridge channel with large span is one of important components in highway engineering, and has the characteristics of large cross-domain capacity, strong material adaptability, attractive bridge shape, good durability, maintenance and maintenance cost saving and the like. Because a cast-in-place process is generally adopted, the appearance quality fluctuation is large, the construction period required by a single-width traffic vehicle is long, and the prefabricated assembly type concrete arch bridge with short construction period, high quality and good durability is gradually popularized and applied in recent years along with the upgrading and transformation of the road traffic engineering construction from labor intensive industry to industrialized and standardized construction. But the prefabricated concrete arch bridge has higher requirements on the foundation because of horizontal thrust when being prefabricated.
In view of the existing defects, the designer actively makes research and innovation based on the practical experience and professional knowledge of the product design and manufacture for many years and by matching with the application of the theory, and creates a novel combined prefabricated assembled corrugated steel plate arch bridge and a construction process in due course, so that the novel combined prefabricated assembled corrugated steel plate arch bridge has higher practicability. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention mainly aims to overcome the defects of the existing cast-in-place concrete arch bridge, and provides a novel combined prefabricated assembled corrugated steel plate arch bridge and a construction process thereof, so that the construction period is shortened, and the construction is convenient.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme.
One aspect of the present invention provides a novel combined prefabricated assembled corrugated steel arch bridge, which comprises: the first precast concrete plate, the second precast concrete plate, the first corrugated steel plate arch, the second corrugated steel plate arch, the connecting block and the connecting assembly;
connecting block fixing grooves are formed in the first precast concrete plate and the second precast concrete plate, and the connecting blocks are respectively connected with the arch legs of the first corrugated steel plate arch and the second corrugated steel plate arch and clamped in the connecting block fixing grooves;
the connecting assembly is arranged at the arch tops of the first corrugated steel plate arch and the second corrugated steel plate arch and is used for connecting the first corrugated steel plate arch and the second corrugated steel plate arch to form a complete arch bridge structure;
and the opposite sides of the first precast concrete plate and the second precast concrete plate are provided with a guide groove and a guide block, and the guide groove is butted with the guide block.
Preferably, the connection assembly includes: a fastener and a fastener; the clamping piece and the locking fastener are respectively connected with the arch tops of the first corrugated steel plate arch and the second corrugated steel plate arch;
the clamping piece further comprises a connecting rotating shaft and two clamping wing plates, the two clamping wing plates are hinged to the connecting rotating shaft, and clamping grooves and fixing holes are formed in the clamping wing plates; after the two clamping wing plates are closed, the locking fastener is clamped in the clamping groove, a hole position corresponding to the fixing hole is arranged at the corrugated steel plate arch connected with the locking fastener, and the other end of the clamping fastener is fastened on the corrugated steel plate arch connected with the locking fastener through a fastening piece.
Preferably, the outer sides of the first precast concrete plate and the second precast concrete plate are provided with a step structure.
Preferably, the first precast concrete plate and the second precast concrete plate are both provided with first prestressed holes, a through passage is arranged between the first prestressed holes, prestressed ribs are arranged in the through passage, an anchorage device is arranged in the first prestressed holes, and the prestressed ribs are tensioned through the anchorage device, so that the first precast concrete plate and the second precast concrete plate are tightly connected.
Preferably, the through passage passes through guide way and guide block, the crack department of guide way and guide block is provided with the water-swelling rubber sealing rod.
Preferably, an I-shaped steel slide rail is arranged in the connecting block fixing groove, and a corresponding sliding groove is formed in the bottom of the connecting block.
Preferably, a reinforced connecting piece is arranged in the connecting block and is fixed with the arch springing of the first corrugated steel plate arch and the second corrugated steel plate arch.
Preferably, the first precast concrete plate and the second precast concrete plate are connected in pairs in the depth direction to form a whole, the first precast concrete plate and the second precast concrete plate are respectively provided with a second prestressed hole, and the two second prestressed holes are tensioned through the prestressed tendons and anchored by an anchorage device.
Preferably, connecting holes are formed in two sides of the first corrugated steel plate arch and the second corrugated steel plate arch, and the connecting holes are used for being connected in the depth direction of the first corrugated steel plate arch and the second corrugated steel plate arch.
The invention also provides a construction process of the novel combined prefabricated assembled corrugated steel plate arch bridge, which comprises the following steps:
measuring the length of the arch bridge, determining materials required by the construction of the arch bridge, and manufacturing corresponding prefabricated parts in a factory;
according to design construction requirements, a first precast concrete plate, a second precast concrete plate, a first corrugated steel plate arch and a second corrugated steel plate arch are built in a factory, and the first corrugated steel plate arch, the second corrugated steel plate arch and connecting blocks form an integral component;
transporting the first precast concrete plates, the second precast concrete plates and the assembled integral components with corresponding quantity and specification to a construction site, placing the first precast concrete plates and the second precast concrete plates at preset positions, connecting the first precast concrete plates and the second precast concrete plates into the integral precast concrete plates by using prestress tensioning, and performing sealing and waterproof treatment on the joints of the precast concrete plates;
sliding the assembled integral structure to a preset position through an I-shaped steel slide rail in the precast concrete plate and fixing, and performing sealing waterproof treatment on the joint;
precisely attaching the two clamping wing plates of the clamping piece to the locking piece, and screwing the two clamping wing plates at the position of the fixing hole by using a bolt to connect into an integral arch structure; the two arch sets are screwed and connected by bolts through connecting holes;
backfilling the top and two sides of the tunnel, and compacting to a specified compactness;
and paving a waterproof coiled material on the precast concrete plate in the arch bridge, and pouring a concrete slope.
By means of the technical scheme, the novel combined prefabricated assembled corrugated steel plate arch bridge and the construction process thereof at least have the following advantages:
according to the novel combined prefabricated assembled corrugated steel plate arch bridge and the construction process thereof, the precast concrete plate is hoisted to a preset position in the construction of the arch bridge with a complex terrain, so that the defect of difficulty in on-site construction is overcome, and the on-site foundation cast-in-place construction is reduced; the assembled corrugated steel plate arch passes through the reserved rail groove, so that the assembling precision is ensured, and the hoisting is facilitated; the connection of the high-strength bolt ensures the integral strength of the corrugated steel plate arch; the water-swelling water stop strip and other waterproof projects greatly improve the durability and the service life of the corrugated steel plate prefabricated arch bridge; the prefabricated arch bridge of corrugated steel plate can adapt to various complicated terrains, adapts to great settlement, deformation and different roadbed fill heights, and the component parts can be assembled on site, and the manufacturing process is simpler, and the cost is also cheaper.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of a novel combined prefabricated assembled corrugated steel arch bridge according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a novel combined prefabricated assembled corrugated steel plate arch bridge in the embodiment of the invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of an opening structure of the engaging member according to the embodiment of the present invention.
FIG. 5 is an enlarged view of a portion of FIG. 2 at D in accordance with an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 2 at E in accordance with an embodiment of the present invention;
FIG. 7 is a sectional view taken along line B-B of FIG. 2 in accordance with an embodiment of the present invention;
FIG. 8 is a top view of FIG. 2 in an embodiment of the present invention;
fig. 9 is a sectional view taken along the direction C-C of fig. 2 in accordance with an embodiment of the present invention.
Reference numerals: 2-I-steel slide rail, 3-connecting block, 4-first corrugated steel plate arch, 9-second corrugated steel plate arch, 10-first precast concrete plate, 11-second precast concrete plate, 13-water-swelling rubber water stop bar, 14-slope, 16-reinforcing connecting piece, 19-anchorage device, 20-prestressed tendon, 21-connecting hole, 31-chute, 3-connecting rod, 9-second precast concrete plate arch, 3-second precast concrete plate, 13-water-swelling rubber water stop bar, 14-slope, 16-reinforcing connecting piece, 19-anchorage device, 20-prestressed,
50-connecting component, 51-clamping component, 52-locking component, 101-connecting block fixing groove, 102-first prestress hole, 111-guide groove, 112-guide block, 113-second prestress hole, 511-connecting rotating shaft and 512-clamping wing plate.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments of the present invention is given with reference to the accompanying drawings and preferred embodiments.
In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless clearly indicated to the contrary. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features considered to be preferred or advantageous.
The terms "first", "second", and the like in the present invention are merely for convenience of description to distinguish different constituent elements having the same name, and do not denote a sequential or primary-secondary relationship.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner" and "outer" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the scope of the present invention.
The novel combined prefabricated assembled corrugated steel plate arch bridge shown in fig. 1 and 2 comprises: a first precast concrete plate 10, a second precast concrete plate 11, a first corrugated steel plate arch 4, a second corrugated steel plate arch 9, a connecting block 3 and a connecting assembly 50; the first precast concrete plate 10 and the second precast concrete plate 11 are in the same horizontal plane when being installed, and the arches of the first corrugated steel plate arch 4 and the second corrugated steel plate arch 9 are butted to form a complete arch bridge structure.
Connecting block fixing grooves 101 are formed in the first precast concrete plate 10 and the second precast concrete plate 11, and the connecting blocks 3 are respectively connected with arch legs of the first corrugated steel plate arch 4 and the second corrugated steel plate arch 9 and clamped in the connecting block fixing grooves 101; the fixing groove 101 is used for fixing the arch springing of the arch bridge structure, and specifically, as shown in fig. 1, the fixing groove is of an inverted T-shaped structure, and the connecting block 3 may penetrate through the side wall, but the connecting block 3 cannot be directly pulled out from the top or both ends.
The connecting assembly 50 is arranged at the arch tops of the first corrugated steel plate arch 4 and the second corrugated steel plate arch 9 and is used for connecting the first corrugated steel plate arch 4 and the second corrugated steel plate arch 9 to form a complete arch bridge structure;
the opposite sides of the first precast concrete plate 10 and the second precast concrete plate 11 are provided with a guide groove 111 and a guide block 112, and the guide groove 111 is butted against the guide block 112. The arrangement of the guide groove 111 and the guide block 112 ensures that the first precast concrete plate 10 and the second precast concrete plate 11 are in the same horizontal plane when they are butted, and ensures the precision of the butt joint.
In the above-mentioned embodiment, only need with the precast concrete board concatenation that prefabricates, wear to locate connecting block fixed slot 101 department with connecting block 3, then use coupling assembling 50 to connect the vault that two corrugated steel sheet arches and can realize the installation of arched bridge, compare construction convenient and fast more with prior art, the installation effectiveness is very improved, installation period also consequently obtains shortening.
Specifically, as shown in fig. 3 and 4, the connection assembly 50 includes: the engaging piece 51 and the locking piece 52; the clamping piece 51 and the locking piece 52 are respectively connected with the arches of the first corrugated steel plate arch 4 and the second corrugated steel plate arch 9; here, the engaging piece 51 is connected to the dome of one of the two corrugated steel plate arches, and the locking piece 52 is connected to the other.
As shown in fig. 4, the engaging member 51 further includes a connecting shaft 511 and two engaging wings 512, the two engaging wings 512 are hinged to the connecting shaft 511, and the engaging wings 512 are provided with engaging slots and fixing holes; after the two fastening flanges 512 are closed, the locking element 52 is locked in the locking groove, and a hole corresponding to the fixing hole is provided at the corrugated steel plate arch connected to the locking element 52, so that the other end of the locking element 51 is fastened to the corrugated steel plate arch connected to the locking element 52 by a fastener. The engaging slot is disposed near the connecting rotation shaft 511, and the fixing hole is disposed far from the connecting rotation shaft 511, when the fixing is performed, the locking element 52 is first placed in the engaging slot of the engaging element 51, then the two engaging wings 512 are closed, the locking element 52 is fixed in the space formed by the two engaging slots, the size of the locking element 52 is the same as the size of the space formed by the two engaging slots, so as to prevent the unstable connection caused by the movement of the locking element 52 in the engaging slot. The two fastening wing plates 512 can rotate on the connecting rotating shaft 511, the connecting rotating shaft 511 is connected with the vault of the corrugated steel plate arch, and during specific installation, the locking fastener 52 is only required to be clamped in the two fastening wing plates 512, and then the fixing holes on the fastening wing plates 512 are fixed on the corrugated steel plate arch through fasteners. The fixing mode is convenient, fast, stable and reliable, and the waterproof performance is improved because the two clamping wing plates 512 completely wrap the locking fastener 52.
After the corrugated steel plate arch connection is completed, since the outward force of the first precast concrete plate 10 and the second precast concrete plate 11 is caused to separate the first precast concrete plate 10 and the second precast concrete plate 11 when the arch crown of the steel plate arch is pressed by an external force, in order to reinforce the overall strength of the precast concrete plates, with continued reference to fig. 1, the outer sides of the first precast concrete plate 10 and the second precast concrete plate 11 are provided with a step structure. When the precast concrete slab is installed, the step structure is fixed, namely, the inner lining applied by the corrugated steel plate arch can be offset, so that the probability of deformation of the precast concrete slab is reduced.
Referring to fig. 5, in order to further enhance the connection strength between the first precast concrete panel 10 and the second precast concrete panel 11, first prestressed holes 102 are formed in the first precast concrete panel 10 and the second precast concrete panel 11, a through passage is formed between the first prestressed holes 102, a prestressed rib 20 is disposed in the through passage, an anchor 19 is disposed in the first prestressed hole 102, and the prestressed rib 20 is tensioned by the anchor 19, thereby tightly connecting the first precast concrete panel 10 and the second precast concrete panel 11. The integrity of the two precast concrete panels is further improved by the tension of the anchorage 19 and the tendon 20 to connect the two precast concrete panels together and the cooperation of the guide groove 111 and the guide block 112.
When the prestressed tendon 20 is tensioned, in order to ensure uniform stress, the penetration passage penetrates through the guide groove 111 and the guide block 112, and the prestressed tendon 20 penetrates through the middle positions of the guide groove 111 and the guide block 112, so that the stress of the upper and lower parts of the precast concrete slab is uniform. In addition, in order to improve the waterproof performance at the gap, a water-swellable rubber water stop 13 is provided at the gap between the guide groove 111 and the guide block 112.
When the connecting block 3 penetrates into the connecting block fixing groove 101, in order to reduce the resistance when the connecting block 3 penetrates, as shown in fig. 6, an i-shaped steel slide rail 2 is arranged in the connecting block fixing groove 101, and a corresponding sliding groove 31 is arranged at the bottom of the connecting block 3.
In the above embodiment, in order to further enhance the connection reliability between the arch springing and the connection block 3, the connection block 3 is provided with the reinforcing connection member 16, and the reinforcing connection member 16 is fixed to the arch springing of the first corrugated steel plate arch 4 and the second corrugated steel plate arch 9. The reinforced connecting piece 16 increases the contact area with the connecting block 3, so that the friction force between the arch springing and the connecting block 3 is increased, and when the arch springing is stressed, the reinforced connecting piece 16 transmits the force to the whole position in contact with the reinforced connecting piece 16, so that the possibility that the arch springing falls off or the connecting block 3 is damaged due to overlarge stress is reduced.
As a preferred example of the above embodiment, as shown in fig. 7, when it is required to increase the width of the arch bridge, the arch bridge may be spliced in the width direction of the arch bridge, the first precast concrete panel 10 and the second precast concrete panel 11 are connected in pairs in the depth direction to form a whole, the first precast concrete panel 10 and the second precast concrete panel 11 are provided with second prestressed holes 113, and the two second prestressed holes 113 are tensioned by the prestressed ribs 20 and anchored by the anchors 19. The precast concrete plates are connected with prestressed tendons 20 through anchors 19.
As for the connection between the corrugated steel plate arches in the width direction, referring to fig. 8 and 9, connection holes 21 are provided on both sides of the first corrugated steel plate arch 4 and the second corrugated steel plate arch 9, and the connection holes 21 are used for connecting in the depth direction of the first corrugated steel plate arch 4 and the second corrugated steel plate arch 9. In the particular connection, the corrugations of the arch of corrugated steel sheets have an overlap of at least one corrugation, so that the fastener is passed through the overlapping connection hole 21 to secure it.
The construction process of the novel combined prefabricated assembled corrugated steel plate arch bridge comprises the following steps:
measuring the length of the arch bridge, determining materials required by the construction of the arch bridge, and manufacturing corresponding prefabricated parts in a factory;
according to design construction requirements, a first precast concrete plate 10, a second precast concrete plate 11, a first corrugated steel plate arch 4 and a second corrugated steel plate arch 9 are built in a factory, and the first corrugated steel plate arch 4, the second corrugated steel plate arch 9 and a connecting block 3 form an integral component; here, the integral member means an integral structure formed by fixing the joint block 3 at the arch springing of the steel plate arch.
Transporting a first precast concrete plate 10, a second precast concrete plate 11 and assembled integral components with corresponding quantity and specification to a construction site, placing the first precast concrete plate 10 and the second precast concrete plate 11 at preset positions, connecting the first precast concrete plate and the second precast concrete plate to form the integral precast concrete plates by using prestress tensioning, and performing sealing and waterproof treatment on joints of the precast concrete plates;
sliding the assembled integral structure to a preset position through an I-shaped steel slide rail 2 in the precast concrete plate and fixing, and performing sealing waterproof treatment on the joint;
precisely attaching the two clamping wing plates 512 of the clamping piece 51 to the locking piece 52, and screwing the two clamping wing plates with bolts at the positions of the fixing holes to form an integral arch structure; the two arch sets are screwed and connected by bolts through connecting holes 21; the two-arch is a corrugated steel plate arch spliced in the width direction of the arch bridge.
Backfilling the top and two sides of the tunnel, and compacting to a specified compactness;
and paving a waterproof coiled material on the precast concrete plate in the arch bridge, and pouring a concrete slope.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a novel corrugated steel sheet arched bridge is assembled in prefabricated of combination formula which characterized in that includes: the concrete slab comprises a first precast concrete slab (10), a second precast concrete slab (11), a first corrugated steel plate arch (4), a second corrugated steel plate arch (9), a connecting block (3) and a connecting assembly (50);
connecting block fixing grooves (101) are formed in the first precast concrete plate (10) and the second precast concrete plate (11), and the connecting blocks (3) are connected with arch legs of the first corrugated steel plate arch (4) and the second corrugated steel plate arch (9) respectively and clamped in the connecting block fixing grooves (101);
the connecting assembly (50) is arranged at the arch tops of the first corrugated steel plate arch (4) and the second corrugated steel plate arch (9) and is used for connecting the first corrugated steel plate arch (4) and the second corrugated steel plate arch (9) to form a complete arch bridge structure;
a guide groove (111) and a guide block (112) are arranged on the opposite sides of the first precast concrete plate (10) and the second precast concrete plate (11), and the guide groove (111) is butted with the guide block (112);
the connection assembly (50) comprises: a snap piece (51) and a locking piece (52); the clamping piece (51) and the locking piece (52) are respectively connected with the arches of the first corrugated steel plate arch (4) and the second corrugated steel plate arch (9);
the clamping piece (51) further comprises a connecting rotating shaft (511) and two clamping wing plates (512), the two clamping wing plates (512) are hinged on the connecting rotating shaft (511), and clamping grooves and fixing holes are formed in the clamping wing plates (512); after the two clamping wing plates (512) are closed, the locking fastener (52) is clamped in the clamping groove, a hole position corresponding to the fixing hole is arranged at the arch of the corrugated steel plate connected with the locking fastener (52), and the other end of the clamping fastener (51) is fastened on the arch of the corrugated steel plate connected with the locking fastener (52) through a fastening piece.
2. The novel combined precast assembled corrugated steel plate arch bridge as claimed in claim 1, wherein the outer sides of the first precast concrete plate (10) and the second precast concrete plate (11) are arranged in a step structure.
3. The novel combined precast assembled corrugated steel plate arch bridge of claim 1, wherein the first precast concrete plate (10) and the second precast concrete plate (11) are provided with first prestressed holes (102), a through channel is arranged between the first prestressed holes (102), a prestressed tendon (20) is arranged in the through channel, an anchorage device (19) is arranged in the first prestressed hole (102), and the prestressed tendon (20) is tensioned through the anchorage device (19), so that the first precast concrete plate (10) and the second precast concrete plate (11) are tightly connected.
4. The novel combined prefabricated assembled corrugated steel plate arch bridge of claim 3, wherein a through passage passes through the guide groove (111) and the guide block (112), and a water-swelling rubber water stop strip (13) is arranged at a crack of the guide groove (111) and the guide block (112).
5. The novel combined prefabricated assembled corrugated steel plate arch bridge of claim 1, wherein an I-shaped steel slide rail (2) is arranged in the connecting block fixing groove (101), and a corresponding sliding groove (31) is arranged at the bottom of the connecting block (3).
6. A novel combined prefabricated assembled corrugated steel plate arch bridge according to claim 5, characterized in that a reinforcing connecting piece (16) is arranged in the connecting block (3), and the reinforcing connecting piece (16) is fixed with the arch feet of the first corrugated steel plate arch (4) and the second corrugated steel plate arch (9).
7. The novel combined precast assembled corrugated steel plate arch bridge of claim 3, wherein the first precast concrete plate (10) and the second precast concrete plate (11) are connected in pairs in the depth direction to form a whole, the first precast concrete plate (10) and the second precast concrete plate (11) are provided with second prestressed holes (113), and the two second prestressed holes (113) are tensioned by the prestressed ribs (20) and anchored by anchors (19).
8. The novel combined prefabricated assembled corrugated steel plate arch bridge of claim 7, wherein the first corrugated steel plate arch (4) and the second corrugated steel plate arch (9) are provided with connecting holes (21) at both sides thereof, and the connecting holes (21) are used for connecting in the depth direction of the first corrugated steel plate arch (4) and the second corrugated steel plate arch (9).
9. A construction process of a novel combined prefabricated assembled corrugated steel plate arch bridge according to any one of claims 1 to 8, which comprises the following steps:
measuring the length of the arch bridge, determining materials required by the construction of the arch bridge, and manufacturing corresponding prefabricated parts in a factory;
according to design construction requirements, a first precast concrete plate (10), a second precast concrete plate (11), a first corrugated steel plate arch (4) and a second corrugated steel plate arch (9) are built in a factory, and the first corrugated steel plate arch (4), the second corrugated steel plate arch (9) and a connecting block (3) form an integral component;
transporting a first precast concrete plate (10), a second precast concrete plate (11) and assembled integral components with corresponding quantity and specification to a construction site, placing the first precast concrete plate (10) and the second precast concrete plate (11) at preset positions, connecting the first precast concrete plate and the second precast concrete plate into the integral precast concrete plates by using prestress tensioning, and performing sealing and waterproof treatment on joints of the precast concrete plates;
sliding the assembled integral structure to a preset position through an I-shaped steel slide rail (2) in the precast concrete plate and fixing, and performing sealing and waterproof treatment on a joint;
precisely attaching two clamping wing plates (512) of the clamping piece (51) to the locking piece (52), and screwing down the two clamping wing plates by bolts at the position of the fixing hole to form an integral arch structure; the two arch sets are screwed and connected by bolts through connecting holes (21);
backfilling the top and two sides of the tunnel, and compacting to a specified compactness;
and (3) paving waterproof coiled materials on the precast concrete plates in the arch bridge, and pouring concrete slopes (14).
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| CN111101446B (en) * | 2019-12-29 | 2021-07-16 | 正平路桥建设股份有限公司 | Construction method of soil-covered corrugated steel plate bridge |
| CN111456224B (en) * | 2020-04-14 | 2021-04-27 | 金陵科技学院 | Light steel structure assembly and assembled space structure |
| CN116428248A (en) * | 2023-04-13 | 2023-07-14 | 华中科技大学 | Adjustable fixing device for arch feet of plate arch |
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| US6640505B1 (en) * | 2001-10-25 | 2003-11-04 | Bebotech Corporation | Hybrid arched overfilled structure |
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| JP2006322153A (en) * | 2005-05-17 | 2006-11-30 | Mitsui Eng & Shipbuild Co Ltd | Bridge structure in unequal span |
| KR100941066B1 (en) * | 2009-08-31 | 2010-02-09 | 서평원 | Prestressed-precast-segmental open spendral concrete arch bridge and its constructing method |
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| CN110468680A (en) | 2019-11-19 |
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