CN215857266U - Adhesion articulated type sectional prefabricated assembled arch bridge - Google Patents
Adhesion articulated type sectional prefabricated assembled arch bridge Download PDFInfo
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- CN215857266U CN215857266U CN202121927978.4U CN202121927978U CN215857266U CN 215857266 U CN215857266 U CN 215857266U CN 202121927978 U CN202121927978 U CN 202121927978U CN 215857266 U CN215857266 U CN 215857266U
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Abstract
The utility model discloses an adhesion hinged type sectional prefabricated assembled arch bridge, wherein the number of arch bases is two; a sliding inclined plane is formed on the installation side of the arch support; the number of the segmental arch rings is multiple and the segmental arch rings are arranged in parallel; two ends of the segmental arch ring are respectively attached to the two sliding inclined planes and are fixedly poured; the segmental arch ring comprises a plurality of sections of prefabricated wedge-shaped blocks; an adhesive layer is formed on the top surface of the multi-section prefabricated wedge block; the adhesive layer consists of a polymer adhesive and a reinforcer; the adhesive layer connects the prefabricated wedge blocks in series, and enables two adjacent prefabricated wedge blocks to form a movable connection structure. On one hand, the manufacturing precision of the structural unit is improved, and the problem that the shape of the formed bridge line is not consistent with the designed line is solved; meanwhile, on the basis of retaining the excellent characteristics of the arch bridge in aspects of unique appearance, durability and the like, the construction efficiency and the site applicability are improved, the construction flow is simplified, the cost of manpower and material resources is saved, and the bridge type has higher competitiveness in a medium and small span range.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to an adhesion hinged type sectional prefabricated assembled arch bridge.
Background
Along with the promotion of the joyful strategy of the country and the call for constructing the forest city of the country in recent years, the construction of ecological parks of cities and villages in various places is very fierce, and the construction demand of medium and small span bridges such as pedestrian bridges, bicycle axles and the like in scenic spots is continuously increased. The stone arch bridge has the characteristics of convenient material taking, simple structure, beautiful shape, good durability, low maintenance cost and the like, and is widely applied to the bridges with medium and small span of 5-30 meters. On the other hand, in the construction of the traditional masonry arch bridge structure, a support needs to be erected, the requirements on the site construction process are high, the problems of inaccurate structural line shape control, uneven material strength distribution and the like are often caused, and the rapid construction field is more limited.
Therefore, how to provide an arch bridge structure that can be easily constructed and is stable is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an adhesion hinged type segmental prefabricated assembled arch bridge, and aims to solve the above technical problems.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an adhesion articulated segmental prefabrication assembled arch bridge, comprising:
an arch support; the number of the arch seats is two; a sliding inclined plane is formed on the installation side of the arch support;
a segmental arch ring; the number of the segment arch rings is multiple and the segment arch rings are arranged in parallel; two ends of the segmental arch ring are respectively attached to the two sliding inclined planes and are fixedly poured; the segmental arch ring comprises a plurality of sections of prefabricated wedge-shaped blocks; adhesive layers are formed on the top surfaces of the multiple sections of prefabricated wedge-shaped blocks; the adhesive layer consists of a polymer adhesive and a reinforcer; the adhesive layer connects multiple sections of the prefabricated wedge-shaped blocks in series, and enables two adjacent prefabricated wedge-shaped blocks to form a movable connection structure.
According to the technical scheme, the wedge-shaped blocks are connected through the adhesive layer consisting of the polymer adhesive and the reinforcer, so that the wedge-shaped blocks have the capability of rotating, the segmental arch ring can be horizontally placed on a loading platform of a transport vehicle, and the transport is very convenient on the premise of ensuring the structural integrity; on one hand, the manufacturing precision of the structural unit is improved, and the problem that the shape of the formed bridge line is not consistent with the designed line is solved; meanwhile, on the basis of retaining the excellent characteristics of the arch bridge in aspects of unique appearance, durability and the like, the construction efficiency and the site applicability are improved, the construction flow is simplified, the cost of manpower and material resources is saved, and the bridge type has higher competitiveness in a medium and small span range.
Preferably, in the adhesion hinged type segmental prefabrication and assembly arch bridge, the reinforcement is high-performance carbon fiber cloth; and the polymer adhesive is used for bonding the high-performance carbon fiber cloth on the top surface of the prefabricated wedge block. The high-performance carbon fiber cloth has the characteristics of light dead weight, thin thickness, strong plasticity, short construction period and good corrosion resistance, and can well meet the construction requirement as a connecting structure.
Preferably, in the adhesion hinged type segmental prefabricated assembled arch bridge, the reinforcement is an FRP stiffening cable, a steel cable or a steel strand; the polymer adhesive is bonded on the top surface of the prefabricated wedge-shaped block, and the FRP stiffening cables, the steel cables or the steel strands are wrapped inside the polymer adhesive. The FRP material has light weight, high strength, good corrosion resistance, flexible design and good elastic property, is very suitable for factory processing and manufacturing, and is a common bridge member and reinforcing material; the structural stability of the steel cables and the steel strands is stronger.
Preferably, in the adhesion hinge type segmental prefabrication and assembly arch bridge, the height of the prefabricated wedge block is 400 mm, the distance between the top surfaces of the segmental arch rings in the length direction is 500 mm, the distance between the prefabricated wedge blocks in the width direction is 1000 mm, and the dimension of the prefabricated wedge block can be properly adjusted according to requirements. The arch bridge structure provided by the utility model is suitable for pedestrian landscape bridges or vehicle arch bridges with medium and small spans of 5-30 meters.
Preferably, in the adhesion hinged type segmental prefabricated assembled arch bridge, the top surfaces of three of the prefabricated wedge-shaped blocks of the segmental arch ring are movably connected with hanging rings; three said rings are disposed at the mid-point and on either side of said segment arch.
Specifically, in the three suspension loops, one suspension point is located on the central line of the prefabricated wedge block in the center, and the other two suspension points are located on the central line of the seventh prefabricated wedge block from two ends. During hoisting, the temporary cantilever structure can be seen from the hoisting point to the end.
Preferably, in the prefabricated arched bridge of assembling of adhesion articulated segmentation, prefabricated wedge is solid concrete structure, and adjacent two prefabricated wedge has the lug notch structure that can peg graft the complex on the binding face of prefabricated wedge. The assembling mode is simple and convenient to operate, high in precision and high in installation speed, other connecting materials are not needed, and cost is saved.
Preferably, in the adhesion articulated type segmental prefabrication and assembly arch bridge, the lug notch structure is a convex cross-shaped structure and a concave cross-shaped groove. The stability of the clamping structure is stronger.
Preferably, in the adhesion articulated type segmental prefabrication and assembly arch bridge, the prefabricated wedge block is of a hollow box type concrete structure with two open ends, and the open end of the prefabricated wedge block faces the length direction of the segmental arch ring. The section has large hollowing rate and light dead weight, can save a large amount of masonry, and reduces the consumption of the segment connecting piece; and the box-shaped section is a closed hollow section, so that the torsional rigidity is high and the integrity is good.
The utility model provides an intelligent construction control method of an adhesion hinged type sectional prefabricated assembled arch bridge, which comprises the following steps:
s1, pouring the arch support and maintaining;
s2, prefabricating the prefabricated wedge-shaped blocks in a factory, and connecting the prefabricated wedge-shaped blocks through the adhesive layer according to the required length; simultaneously selecting a plurality of binding points of two adjacent prefabricated wedge blocks, installing stress strain gauges on the binding points, and installing laser displacement sensors on the prefabricated wedge blocks; the prefabricated wedge-shaped blocks which are assembled and molded are transported to a construction site;
s3, hoisting the segment prefabricated wedge block to form the segment arch ring, and erecting two ends of the segment prefabricated wedge block on the sliding inclined plane of the arch center;
s4, repeating the step S3, and erecting a plurality of segmental arches on the sliding inclined plane of the arch center in parallel;
and S5, connecting a tensioning mechanism between two ends of the segmental arch ring through a guy cable, adjusting the radian of the segmental arch ring, collecting the numerical value of the stress strain gauge until the radian and the stress value of the segmental arch ring are consistent with the design value, stopping tensioning, and pouring concrete on the sliding inclined plane to fix the arch springing.
According to the technical scheme, the method provided by the utility model has the advantages that the monitoring data of the sensor is collected, the prefabricated arch ring is tensioned in a grading and subsection mode according to the established arch bridge digital twin model and the numerical simulation calculation result of the construction load on the arch through intelligent numerical control tensioning equipment, the linear shape and the internal force of the prefabricated arch ring are adjusted to be consistent with the design, and the problem that the linear shape of the formed bridge is not consistent with the linear shape of the designed bridge is solved.
The fitting points are the ends, the middle points and the quartering points of the segmental arch rings, and the measurement requirements can be met.
After the segmental arch rings are lifted and erected on the arch support through the lifting equipment, the wall surfaces of the prefabricated wedge blocks are mutually abutted under the action of self weight, and the segmental arch rings naturally present an arch camber shape. The arch ring linear shape is monitored by the stress and displacement sensors arranged on the two arch seats, the quartering point and the arch crown, and the position and the linear shape of the arch ring are timely adjusted by the crane and the tensioning mechanism according to data collected by the stress and displacement sensors in the hoisting process.
It should be noted that the tensioning mechanism may be a through jack, and is connected to the segment arch ring through a guy cable and a ring, and the tensioning mechanism is of a conventional structure and is not described herein again.
According to the technical scheme, compared with the prior art, the utility model discloses and provides the adhesion hinge type segmental prefabrication and assembly arch bridge, which has the following beneficial effects:
1. on one hand, the manufacturing precision of the structural unit is improved, and the problem that the shape of the formed bridge line is not consistent with the designed line is solved; meanwhile, on the basis of retaining the excellent characteristics of the arch bridge in aspects of unique appearance, durability and the like, the construction efficiency and the site applicability are improved, the construction flow is simplified, the cost of manpower and material resources is saved, and the bridge type has higher competitiveness in a medium and small span range.
2. The method provided by the utility model comprises the steps of collecting sensor monitoring data, stretching the prefabricated arch ring in a grading and subsection manner according to the built arch bridge digital twin model and the numerical simulation calculation result of the construction load on the arch through intelligent numerical control stretching equipment, adjusting the line shape and the internal force of the prefabricated arch ring to be consistent with the design, and solving the problem that the line shape of the formed bridge is not consistent with the line shape of the design.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an adhesion hinge type segmental prefabrication and assembly arch bridge provided by the utility model;
FIG. 2 is a schematic structural diagram of a prefabricated wedge block connection according to example 1 of the present invention;
FIG. 3 is a schematic structural diagram of a prefabricated wedge block connection according to embodiment 2 of the utility model;
FIG. 4 is a schematic structural diagram of the position arrangement of the hanging ring provided by the utility model;
FIG. 5 is a schematic structural diagram of a prefabricated wedge block of embodiment 3 provided by the utility model;
FIG. 6 is a schematic structural diagram of a prefabricated wedge block of embodiment 4 provided by the utility model;
fig. 7 is a schematic structural diagram of the intelligent construction control method provided by the utility model.
Wherein:
1-abutment;
11-a sliding ramp;
2-segment arch ring;
21-prefabricating a wedge block; 211-bump notch configuration; 22-an adhesive layer; 221-a polymer adhesive;
222-a reinforcement;
3-hoisting rings;
4-a steel cord;
5-a tensioning mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1 to fig. 3, an embodiment of the present invention discloses an adhesion hinge type segmental prefabricated arch bridge, including:
an arch support 1; the number of the arch bases 1 is two; a sliding inclined plane 11 is formed on the installation side of the arch support 1;
a segment arch ring 2; the number of the segment arch rings 2 is multiple and the segment arch rings are arranged in parallel; two ends of the segmental arch ring 2 are respectively attached to the two sliding inclined planes 11 and are fixedly poured; the segmental arch ring 2 comprises a plurality of sections of prefabricated wedge-shaped blocks 21; the top surface of the multi-section prefabricated wedge block 21 is provided with an adhesive layer 22; the adhesive layer 22 is composed of a polymer adhesive 221 and a reinforcement 222; the adhesive layer 22 connects the plurality of prefabricated wedge blocks 21 in series, and enables two adjacent prefabricated wedge blocks 21 to form an active connection structure.
In order to further optimize the above technical solution, the height of the prefabricated wedge block 21 is 400 mm, the distance of the top surface along the length direction of the segment arch 2 is 500 mm, and the distance along the width direction of the segment arch 2 is 1000 mm.
Referring to fig. 4, the top surfaces of three of the prefabricated wedge-shaped blocks 21 of the segmental arch ring 2 are movably connected with a lifting ring 3; three lifting rings 3 are arranged at the midpoint and on both sides of the segmental arch 2.
Example 1:
referring to fig. 2, the reinforcement 222 is a high performance carbon fiber cloth; polymer adhesive 221 bonds the high performance carbon fiber cloth to the top surface of the preformed wedge block 21.
Example 2:
referring to FIG. 3, the reinforcement 222 is an FRP stiffening cable, a steel cable or a steel strand; the polymer adhesive 221 is bonded to the top surface of the prefabricated wedge block 21, and the FRP stiffening cables, steel cables or steel strands are wrapped inside the polymer adhesive 221.
Example 3:
referring to fig. 5, the prefabricated wedge-shaped blocks 21 are of a solid concrete structure, and a lug and notch structure 211 capable of being in splicing fit is prefabricated on the binding surface of two adjacent prefabricated wedge-shaped blocks 21; the bump notch structure 211 is a raised cross-shaped structure and a recessed cross-shaped groove.
Example 4:
referring to fig. 6, the prefabricated wedge-shaped block 21 is a hollow box-type concrete structure with two open ends, and the open end of the prefabricated wedge-shaped block 21 faces the length direction of the segmental arch ring 2.
On the basis of the above embodiment, referring to fig. 7, the intelligent construction control method for the adhesion hinged type segmental prefabrication and assembly arch bridge comprises the following steps:
s1, pouring the arch center 1 and maintaining;
s2, prefabricating the wedge-shaped blocks 21 in a factory, and connecting the prefabricated wedge-shaped blocks 21 through adhesive layers 22 according to the required length; simultaneously selecting a plurality of joint points of two adjacent prefabricated wedge blocks 21, wherein the joint points are the end, the middle point and the quartering point of the segmental arch ring 2; installing stress strain gauges on the multiple binding points, and installing laser displacement sensors on the prefabricated wedge-shaped blocks 21; the prefabricated wedge block 21 formed by assembling is transported to a construction site;
s3, hoisting the prefabricated wedge block 21 to form a segmental arch ring 2, and erecting two ends of the segmental arch ring on the sliding inclined plane 11 of the arch support 1;
s4, repeating the step S3, and erecting a plurality of segmental arches 2 on the sliding inclined plane 11 of the arch center 1 in parallel;
s5, connecting a tensioning mechanism 7 between two ends of the segmental arch ring 2 through a steel cable 6, adjusting the radian of the segmental arch ring 2, collecting the numerical value of a stress strain gauge until the radian and the stress value of the segmental arch ring 2 are consistent with the design value, stopping tensioning, and pouring concrete on the sliding inclined plane 11 to fix the arch springing.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides an arch bridge is assembled in prefabricated section of adhesion articulated formula which characterized in that includes:
an arch support (1); the number of the arch seats (1) is two; a sliding inclined plane (11) is formed on the installation side of the arch support (1);
a segment arch ring (2); the number of the segment arch rings (2) is multiple and the segment arch rings are arranged in parallel; two ends of the segmental arch ring (2) are respectively attached to the two sliding inclined planes (11) and are fixedly poured; the segmental arch ring (2) comprises a plurality of segments of prefabricated wedge-shaped blocks (21); an adhesive layer (22) is formed on the top surface of the prefabricated wedge-shaped blocks (21); the adhesive layer (22) consists of a polymer adhesive (221) and a reinforcer (222); the adhesive layer (22) connects a plurality of sections of the prefabricated wedge-shaped blocks (21) in series, and enables two adjacent prefabricated wedge-shaped blocks (21) to form an active connection structure.
2. The adhesively-hinged segment-prefabricated erection arch bridge of claim 1, wherein said reinforcement (222) is a high-performance carbon fiber cloth; and the polymer adhesive (221) is used for bonding the high-performance carbon fiber cloth on the top surface of the prefabricated wedge-shaped block (21).
3. The adhesively-hinged segmented prefabricated arch bridge of claim 1, wherein said reinforcement (222) is an FRP stiffener, wire rope or strand; the polymer adhesive (221) is bonded on the top surface of the prefabricated wedge-shaped block (21), and the FRP stiffening cables, the steel cables or the steel strands are wrapped inside the polymer adhesive (221).
4. An adhesively hinged segmental prefabricated arch bridge according to any one of claims 1 to 3, characterised in that the height of the prefabricated wedge blocks (21) is 400 mm, the distance of the top surface along the length of the segmental arch ring (2) is 500 mm and the distance along the width of the segmental arch ring (2) is 1000 mm.
5. The adhesion-hinged segmental prefabricated arch bridge according to any one of claims 1 to 3, characterized in that the top surfaces of three of said prefabricated wedge blocks (21) of said segmental arch rings (2) are movably connected with lifting rings (3); the three lifting rings (3) are arranged at the middle point and on both sides of the segmental arch ring (2).
6. The adhesion-hinged segmented prefabricated arch bridge according to any one of claims 1 to 3, characterized in that the prefabricated wedge blocks (21) are of a solid concrete structure, and the abutting surfaces of two adjacent prefabricated wedge blocks (21) are prefabricated with lug and slot structures (211) capable of being inserted and matched.
7. The adhesion-hinged segmental prefabricated arch bridge according to claim 6, wherein the lug-notch structures (211) are a raised cross-shaped structure and a recessed cross-shaped groove.
8. The adhesion-hinged segmental prefabricated arch bridge according to any one of claims 1 to 3, wherein the prefabricated wedge block (21) is a hollow box-type concrete structure with two open ends, and the open end of the prefabricated wedge block (21) faces the length direction of the segmental arch ring (2).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882256A (en) * | 2021-08-17 | 2022-01-04 | 中国港湾工程有限责任公司 | Adhesion hinged type sectional prefabricated assembled arch bridge and intelligent construction control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113882256A (en) * | 2021-08-17 | 2022-01-04 | 中国港湾工程有限责任公司 | Adhesion hinged type sectional prefabricated assembled arch bridge and intelligent construction control method |
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