CN110820532B - Design implementation method of beam type bridge girder structure capable of being repeatedly disassembled and assembled - Google Patents
Design implementation method of beam type bridge girder structure capable of being repeatedly disassembled and assembled Download PDFInfo
- Publication number
- CN110820532B CN110820532B CN201910993489.XA CN201910993489A CN110820532B CN 110820532 B CN110820532 B CN 110820532B CN 201910993489 A CN201910993489 A CN 201910993489A CN 110820532 B CN110820532 B CN 110820532B
- Authority
- CN
- China
- Prior art keywords
- bridge
- joint
- segment
- sections
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A design implementation method of a girder structure of a beam type bridge capable of being repeatedly disassembled and assembled. The main beam structure adopts a segmented prefabrication form and is formed by assembling a plurality of bridge sections; laying a prestressed cable system on the bridge segment: the full-length prestressed cable is mainly subjected to integral stress and is arranged in an integral structure spanning multiple segments in a tensioning mode; the inhaul cable mainly bears the force in the process of installing and disassembling the segments, and simultaneously the inhaul cable and the connecting cable bear the force together after the inhaul cable forms a bridge; the full-length prestressed cable realizes the anchoring of a top end point through an anchoring point, and anchoring steering points are distributed in a segment range in a long distance to assist the steering of the full-length prestressed cable so as to adapt to the design trend of the whole bridge. The steering node and the anchoring point ensure the flexible disassembly and reassembly and layout of the prestressed cable system. The joint section adopts a special joint which can be lapped and disassembled, and the stressed sections are quickly connected to complete 'normal installation'; otherwise, carrying out 'reverse dismantling' to realize the dismantling of each segment; can be assembled again in different places according to the requirements, and the secondary use of the bridge sections is realized.
Description
Technical Field
The application belongs to the field of bridge engineering, in particular to the technical field of prestressed concrete beam bridges, and is suitable for popularization of the current assembling construction technology in China.
Background
China is a big bridge construction country, particularly concrete bridges are large in size and wide in range, densely-arranged assembled bridges are mostly adopted in the upper structure, and the cross section forms comprise hollow slabs, T-shaped beams, small box beams and the like. In recent years, industrialized construction bridges are becoming hot spots in the industry, and the advantages of environmental protection, guaranteed prefabricated part quality inspection system and rapid site construction speed are mainly embodied. Meanwhile, the modern construction method also meets the requirement of technical progress of the industry.
In the field of small-span fabricated bridges, the whole-span prefabrication hoisting is mostly adopted for beam bodies; in the field of large-span bridges, the span of a concrete bridge for prefabricated section assembly construction in China is close to 200 meters; the span of the fabricated construction bridge of the steel-concrete composite bridge is increased to about 70 meters. The assembly type construction process or design considers complete bonding between the sections, and the disassembly or repeated connection construction does not exist.
At present, bridge design and construction are carried out in a 'normal installation' angle, the bridges cannot be 'disassembled backwards', namely how to treat the bridges in the future is not considered at the beginning of design, the influence on the environment caused by the final disassembly of concrete bridges in industry is received, and in addition, the rapid expansion of cities and the rapid development of traffic in China, a plurality of bridges have the problem of short service life, and the bridges are generally disassembled and rebuilt instead of being disassembled and reassembled for use, namely, a complete bridge construction method with the whole service life cycle and a system is not formed.
How to establish a set of complete system, and the range covers from small-span assembled bridge girders to middle-and large-span prefabricated section assembling construction bridge girders, including all detachable and repeatedly assembled bridge structures and construction technologies of concrete bridge girders of large-span cable-stayed bridges, must bring great benefits to the environment and economy of China.
Disclosure of Invention
The purpose of this application lies in: the design implementation method overcomes the defects of the prior art, and provides the design implementation method for the beam type bridge girder capable of being repeatedly disassembled and assembled.
In order to achieve the above object, the present application provides the following technical solutions:
technical scheme one
A design implementation method of a beam type bridge girder structure capable of being repeatedly disassembled and assembled is characterized in that,
firstly, designing and prefabricating a bridge section;
secondly, the integral structure adopts segmented prefabricated sections which are distributed by a plurality of bridge sections;
thirdly, the whole structure is formed by assembling a plurality of bridge sections;
laying a prestressed cable system consisting of a through-length prestressed cable 5, short connecting cables 6 among the sections, anchoring points and steering nodes on the bridge sections; the full-length prestressed cable 5 is mainly subjected to integral stress and is arranged in an integral structure spanning multiple segments in a tensioning mode; the stay cable 6 mainly bears the stress in section installation and disassembly, and simultaneously bears the stress together with the connecting cable 5 after forming a bridge; the full-length prestressed cable 5 realizes the anchoring of a top end point through an anchoring point, and anchoring steering points are distributed in a segment range in a long distance to assist the steering of the full-length prestressed cable to adapt to the design trend of the whole bridge; the structural design of the steering node and the anchoring point ensures the flexible assembly and layout of a prestressed cable system; the joint section adopts a special joint which can be lapped and disassembled, and the stressed sections are quickly connected to complete 'normal installation';
fourthly, conversely, carrying out 'reverse dismantling' to realize the dismantling of each segment;
and fifthly, the bridge sections can be assembled again in different places according to requirements, so that the secondary use of the bridge sections is realized.
Technical scheme two
A longitudinal structure of a detachable beam type bridge is characterized in that a prefabricated and assembled beam type bridge is adopted, and comprises bridge sections, a prestressed cable system and special joints; each bridge section is used as a stressed section and is connected through a prestressed short stay cable 6 and a special joint, and the whole bridge section is connected through a prestressed long stay cable 5.
The prestressed cable system is designed into a detachable cable steering and fixing piece through an anchoring point, so that rapid steering and anchoring pieces, flexible disassembly and reassembly are realized;
the special joint realizes the quick assembly, disassembly and re-assembly of the bridge sections.
Technical scheme three
The anchoring node comprises a body, an embedded part 93 and a fastener 94, wherein the body is installed on the embedded part 93, and an anchoring point 9 is embedded into the segment through one end of the embedded part 93; the body comprises an upper clamping plate 91 and a lower clamping plate 92, the upper clamping plate and the lower clamping plate are mutually combined to form a connecting hole 95 through which a cable end penetrates, and the free end of a fastener 94 is screwed and fastened by the fastener 94.
Technical scheme four
A joint mechanism comprises a plurality of joints distributed between adjacent sections, wherein each joint is distributed on the cross section of the end part of the adjacent section. The joint comprises a female head, a male head and a pin bolt piece; the sub-head and the female head are respectively embedded and fixed with the bridge segment and are distributed at the section in an arranging way; the pin bolt piece is a male and female connector. The female joint 2 comprises a body and feet 22, and the female joint 2 is embedded into the segment through the feet 22 or welded at the end part of the segment; the body comprises an external base plate 211 and a flat introducing cavity 212 embedded in the segment, wherein an inlet 213 is formed in the plane of the base plate 211, and a through hole 214 is formed in the side of the introducing cavity 212. The sub-joint 3 comprises a body and feet 32, and the sub-joint 3 is embedded into the segment through the feet 32 or welded at the end part of the segment; the body comprises an external substrate 311 and a flat tongue 312 inserted into the flat introducing cavity 212, wherein the flat tongue 312 is arranged on the plane of the substrate 311, and a through hole 314 is arranged on the side part of the flat tongue 312. Also included are pins 4 and through holes distributed in adjacent segments. Each sub-joint 3 is inserted into the corresponding female joint 2, and after the assembly reaches a preset position, a pin bolt 4 is inserted into a through hole in the segment for realizing the integral fixation of the joint mechanism.
Compared with the prior art, the technical scheme provided by the application is taken as an example and is not limited, and has the following beneficial effects: the repeated dismounting design method and the structure are suitable for an upper main beam structure of a bridge and are not suitable for a lower structure of the bridge. The structure provided by the application provides a brand new thought for protecting resources or environment in China, reducing material and economic waste and realizing the repeated use of bridges, has great economic and social benefits and has great popularization and application values.
Drawings
FIG. 1: conventional prefabricated bridge basic assembly in the prior art
FIG. 2: the overall structure composition of the application is schematic
FIG. 3: the structure of the application is separated and arranged schematically
FIG. 4: the present application relates to a joint connection
FIG. 5: sectional schematic view of internally-detachable inhaul cable and mounting structure
FIG. 6: anchoring state (a) of anchoring point 9, exploded state diagram (b)
The illustration shows only the form of a girder of the section of the box girder, and other section girders or flexural elements are not shown.
Description of reference numerals:
in the figure:
1 segment;
2, a sub-joint; 3, a female joint; 4, pin bolt;
5, a long stay cable; 6 short stay cables;
8 internal steel bars or steel plates of the structure;
9 anchor point mechanism: an upper clamping plate 91, a lower clamping plate 92, an embedded part 93, a fastener 94 and a connecting hole 95
Detailed Description
The technical solutions provided in the present application will be further described with reference to the following specific embodiments and accompanying drawings. The advantages and features of the present application will become more apparent in conjunction with the following description.
It should be noted that the embodiments of the present application have a better implementation and are not intended to limit the present application in any way. The technical features or combinations of technical features described in the embodiments of the present application should not be considered as being isolated, and they may be combined with each other to achieve a better technical effect. The scope of the preferred embodiments of this application may also include additional implementations, and this should be understood by those skilled in the art to which the embodiments of this application pertain.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
The drawings in the present application are in simplified form and are not to scale, but rather are provided for convenience and clarity in describing the embodiments of the present application and are not intended to limit the scope of the application. Any modification of the structure, change of the ratio or adjustment of the size of the structure should fall within the scope of the technical disclosure of the present application without affecting the effect and the purpose of the present application. And the same reference numbers appearing in the various drawings of the present application designate the same features or components, which may be employed in different embodiments.
A design implementation method of a girder structure of a beam type bridge capable of being repeatedly disassembled and assembled is characterized in that,
firstly, designing and prefabricating a bridge section;
secondly, the integral structure adopts segmented prefabricated sections which are distributed by a plurality of bridge sections;
thirdly, the whole structure is formed by assembling a plurality of bridge sections;
laying a prestressed cable system consisting of a through-length prestressed cable 5, short connecting cables 6 among the sections, anchoring points and steering nodes on the bridge sections; the full-length prestressed cable 5 is mainly subjected to integral stress and is arranged in an integral structure spanning multiple segments in a tensioning mode; the stay cable 6 mainly bears the stress in section installation and disassembly, and simultaneously bears the stress together with the connecting cable 5 after forming a bridge; the full-length prestressed cable 5 realizes the anchoring of a top end point through an anchoring point, and anchoring steering points are distributed in a segment range in a long distance to assist the steering of the full-length prestressed cable to adapt to the design trend of the whole bridge; the structural design of the steering node and the anchoring point ensures the flexible assembly and layout of a prestressed cable system; the joint section adopts a special joint which can be lapped and disassembled, and the stressed sections are quickly connected to complete 'normal installation';
fourthly, conversely, carrying out 'reverse dismantling' to realize the dismantling of each segment;
and fifthly, the bridge sections can be assembled again in different places according to requirements, so that the secondary use of the bridge sections is realized.
As an embodiment, the longitudinal structure of the beam type bridge capable of being disassembled and assembled is realized by the method, and the beam type bridge which is prefabricated and assembled is adopted and comprises bridge sections, prestressed cable systems and special joints; each bridge section is used as a stressed section and is connected through a prestressed short stay cable 6 and a special joint, and the whole bridge section is connected through a prestressed long stay cable 5.
First part, bridge section
The bridge sections can be disassembled into small sections for assembly, and can also be installed in a hoisting mode after being butted on the ground of a whole span structure or a construction platform, and the corresponding connection is only aimed at the butt joint of the sections under the condition of meeting the specific construction requirements.
The bridge sections are repeatable existing beam type bridge section forms formed by reinforced concrete structures, steel structures or steel-concrete composite structures, such as section forms of boxes, I-shaped, T-shaped, U-shaped, rectangles and the like, and are divided into different section forms according to a certain rule, so that prefabrication construction is facilitated.
The bridge segment, itself structurally, needs to meet design specification conditions, which are prior art specifications.
Second part, prestressed guy system
The system comprises a full-length prestressed cable 5, short connecting cables 6 among sections, anchoring points and crossing or steering nodes.
The bridge segment is designed and installed with prestressed cable anchoring, crossing or steering node or structure, so that the structure can realize prestressed application and prestressed cable replacement. Particularly, the anchoring cables on the segments need to meet the stress of the segments in the installation and removal processes, so that the corresponding cables need to be stressed and flexible disassembly and reassembly are guaranteed, the cables 5 are mainly stressed integrally and arranged according to the construction process of assembling the bridge according to the conventional segments, the cables 6 are mainly stressed in the installation and disassembly of the segments and are stressed together with the cables 5 after the bridge is formed.
As shown in fig. 2, the prestressed cable comprises a full-length prestressed cable 5 and an intersegment short connecting cable 6; the design of the cables is configured based on the external prestress design concept of the bridge, but the difference is that the cable is required to be disassembled, so that the anchoring point mechanism and the steering node of the cable are different from the existing design. The main reason is to ensure the need of reinstallation after the removal of the anchor point mechanism and the need of cable hanging or steering, so the anchor point mechanism with flexible arrangement function and the steering device designed by the application need to be disclosed.
The prefabricated segment is longitudinally assembled by a plurality of prefabricated segments, and each segment can be integrally formed by a connecting cable 6 between the segments in addition to a conventional full-length prestressed cable 5. Besides the long cable 5 and the segment cable 6 are required to meet the stress of the structure during installation and use, the segment cable 6 has more functions of repeated removal and installation.
Meanwhile, the tensioning and arrangement of the cable after replacement during the structure reinstallation are considered, so that the crossing and connection between the cable and the segment are also considered during the design. The full-length prestressed cable 5 realizes the anchoring of the end point at the top through the anchoring point, and the anchored steering point is arranged at the bottom of the segment in a long distance for assisting the steering of the segment so as to adapt to the design trend of the whole bridge.
The prestressed inhaul cable can be flexibly unloaded and replaced according to the bridge dismantling requirement by means of the anchoring and steering devices preset on the top bottom plate and the web plate of the beam body on the basis of ensuring the standard requirement of the durability of the bridge.
The anchoring point mechanism is specifically realized as shown in fig. 6: the anchoring point mechanism 9 comprises a body, an embedded part 93 and a fastener 94, wherein the body is installed on the embedded part 93, and the anchoring point 9 is embedded into the segment through one end of the embedded part 93; the body comprises an upper clamping plate 91 and a lower clamping plate 92, the upper clamping plate and the lower clamping plate are mutually combined to form a connecting hole 95 through which a cable end penetrates, and the free end of a fastener 94 is screwed and fastened by the fastener 94.
The anchoring point mechanism 9 is designed as a detachable cable steering and fixing piece, namely, an anchor piece for realizing rapid steering.
Third part, connection system between adjacent segments
Besides the arrangement of the prestressed cables, the bridge segment needs to be connected with the adjacent segments.
For this reason, the present application is named as a connection joint mechanism.
The connecting joint mechanism consists of a plurality of connecting joints, and the connecting joints can be pre-embedded or welded with prefabricated sections (reinforced concrete and steel structures).
The positions of the embedded or welded joints are used as key structural parts for shearing resistance, bending resistance and even torsion resistance of the structure according to the stress requirement of the structure, so that the embedded or welded joints can be arranged at the positions of the sections according to the requirement, wherein the positions mainly comprise a tension area with larger positive and negative bending moments and a region with larger main stress of the section, and the embedded or welded joints are common knowledge of structural mechanics of ordinary technicians in the field.
The joint mechanism comprises a female head, a male head and a pin bolt piece; the sub-head and the female head are respectively embedded and fixed with the bridge segment and are regularly distributed at the cross section according to the stress requirement; the pin bolt pieces are the male and female connecting pieces, the pin bolt pieces on the same section can be multiple according to the stress requirement, the pin bolt pieces coaxially penetrate through the male and female connecting pieces, and the position distribution is determined according to the stress requirement of the beam section. The specific structural design is as follows:
the joint mechanism comprises a plurality of joints distributed between adjacent sections, and each joint is distributed on the cross section of the end part of the adjacent section;
each joint is divided into a sub-joint 3 (fig. 4 b) and a female joint 2 (fig. 4 a), which are respectively pre-buried or welded to adjacent sections (fig. 4a is pre-buried in the left section of fig. 3, and fig. 4b is pre-buried in the right section of fig. 3), and the two sub-joint and the female joint are provided with a certain positioning and guiding mechanism to realize flexible butt joint of structures. The structure is realized as follows: the female joint 2 comprises a body and feet 22, and the female joint 2 is embedded into the segment through the feet 22 or welded at the end part of the segment; the body comprises an external base plate 211 and a flat introducing cavity 212 embedded in the segment, wherein an inlet 213 is formed in the plane of the base plate 211, and a through hole 214 is formed in the side of the introducing cavity 212. The sub-joint 3 comprises a body and feet 32, and the sub-joint 3 is embedded into the segment through the feet 32 or welded at the end part of the segment; the body comprises an external substrate 311 and a flat tongue 312 inserted into the flat introducing cavity 212, wherein the flat tongue 312 is arranged on the plane of the substrate 311, and a through hole 314 is arranged on the side part of the flat tongue 312.
As shown in fig. 3, the joint mechanism further comprises a pin 4 and through holes distributed in adjacent segments. Each sub-joint 3 is inserted into the corresponding female joint 2, and after the assembly reaches a preset position, a pin bolt 4 is inserted into a through hole in the segment for realizing the integral fixation of the joint mechanism.
The above segments, joints and cotters, when the segments are removed and moved: according to the requirement, the pin bolt can be pulled out, the joint can be separated, and the prestress can be released after the pin bolt is unloaded when needed.
The joint mechanism and the bridge section are fixed, embedded and welded enough to meet safety standards, and the joint mechanism and the bridge section can be completely realized by the traditional prior art and only serve as a statement in the specification, so that the stress after assembly, the operation during disassembly and assembly and the installation during re-assembly are ensured.
All components of the application can be assembled again in different places except the prestressed inhaul cable which is updated as required, and secondary use of the beam bridge is realized.
The structure provided by the application provides a brand new thought for protecting resources or environment in China, reducing material and economic waste and realizing the repeated use of bridges, has great economic and social benefits and has great popularization and application values.
The application provides a dismantled and assembled beam type bridge structures, can be for bridge design and construction, especially bridge used repeatedly, reduce building rubbish and have important economic and social value to the influence of environment.
It should be noted that, at present, the building industrialization is greatly promoted in China, and the assembly construction is easy to be disassembled to realize the assembly construction in the house construction due to the fact that the number of the components is the same, the size and the weight are small, but the assembly construction is only directed at the permanent construction, and the problem of repeated folding and assembling is not considered. On the other hand, the building is a three-dimensional structure, the length, width and height proportions of all components are close to each other, the structural stress characteristics can be decomposed into components such as beams, columns and plates to realize targeted design, and the size and weight of the building have no difficulty in splicing construction. Compared with the building construction, what show to the structural style of the subject beam type bridge of this application is the member characteristic, and length direction is not at same magnitude of a magnitude than the cross-sectional dimension, and the load that uses is mostly removal heavy load in addition, and the moment of flexure and the shear force characteristic that it shows also are different from the building construction completely, and the open-air environment of whereabouts also is different from the building construction structure, and geographical environment also puts forward different requirements to the construction mode. Although the detachable concept proposed by the present application is partially similar to the building construction field, such as steel structure and wood structure, based on the above differences, the present application cannot be used for reference in the building construction field in terms of the structure, the structure design method, and the connector design.
It should be understood that the embodiments and illustrations described herein are merely box girder examples and are intended to merely illustrate and not limit the application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (1)
1. A design implementation method of a beam type bridge girder structure capable of being repeatedly disassembled and assembled is characterized in that,
firstly, designing and prefabricating a bridge section;
secondly, the integral structure adopts segmented prefabricated sections which are distributed by a plurality of bridge sections;
thirdly, the whole structure is formed by assembling a plurality of bridge sections;
laying a prestressed cable system consisting of a long stay cable (5), short stay cables (6) among the sections, anchoring points and steering nodes on the bridge sections; the long stay cable (5) is mainly used for overall stress and is arranged in an overall structure spanning multiple sections in a tensioning manner; the short stay cable (6) mainly bears the stress in section installation and disassembly, and simultaneously bears the stress together with the long stay cable (5) after forming a bridge; the long stay cable (5) realizes the anchoring of the end point at the top through the anchoring point, and the anchoring steering node is arranged in the segment range in the long distance for assisting the steering of the long stay cable so as to adapt to the design trend of the whole bridge; the structural design of the steering node and the anchoring point ensures the flexible assembly and layout of a prestressed cable system; the adjacent segments adopt a special joint which can be lapped and disassembled, and the stressed segments are quickly connected to complete 'normal installation';
fourthly, conversely, carrying out 'reverse dismantling' to realize the dismantling of each segment;
fifthly, assembling again in different places according to needs to realize secondary use of the bridge sections;
the method realizes the detachable beam type bridge longitudinal structure which is a prefabricated and assembled beam type bridge and comprises three parts, namely bridge sections, a prestressed cable system and special joints; each bridge section is used as a stressed section and is connected through a short stay cable (6) and a special joint, and the whole bridge section is connected through a long stay cable (5);
first part, bridge section
The bridge sections are decomposed into small sections for assembly, or the whole span structure ground or a construction platform is butted and then installed in a hoisting mode;
the bridge segment is in the form of a repeatable section of an existing beam bridge formed by a reinforced concrete structure, a steel structure or a steel-concrete combined structure;
second part, prestressed cable system
The system comprises a long stay cable (5), a short stay cable (6) between sections, an anchoring point mechanism and a crossing or steering node;
the short stay cable (6) is repeatedly dismounted and mounted;
the long stay cable (5) realizes the anchoring of an end point at the top through an anchoring point, and a steering node which is anchored is arranged at the bottom of the segment in a long distance and is used for assisting the steering of the segment so as to adapt to the design trend of the whole bridge;
the anchoring point mechanism (9) comprises a body, an embedded part (93) and a fastener (94), wherein the body is installed on the embedded part (93), and the anchoring point mechanism (9) is embedded into the segment through one end of the embedded part (93); the body comprises an upper clamping plate (91) and a lower clamping plate (92), the upper clamping plate and the lower clamping plate are combined to form a connecting hole (95) through which a cable end penetrates, and the free end of the embedded part is fastened by a fastener (94) in a threaded manner;
a third part,Special joint
The bridge segment is a connecting joint mechanism except for considering the arrangement of the prestressed cables and needing to consider the connection with the adjacent segments;
the connecting joint mechanism consists of a plurality of connecting joints, and the connecting joints are embedded or welded with the prefabricated sections;
the joint mechanism comprises a female joint (3), a sub-joint (2) and a pin bolt (4); the sub-joint (2) and the female joint (3) are respectively embedded and fixed with the bridge section; the pin bolts (4) are connectors of the sub-connectors (2) and the female connectors (3), a plurality of pin bolts (4) with the same section are arranged according to the stress requirement, the pin bolts coaxially penetrate through the connectors of the sub-connectors (2) and the female connectors (3), and the position distribution is determined according to the stress requirement of the beam section; the specific structural design is as follows:
the joint mechanism comprises a plurality of joints distributed between adjacent sections, and each joint is distributed on the cross section of the end part of the adjacent section;
each joint is divided into a sub-joint (2) and a female joint (3) which are respectively pre-buried or welded to adjacent sections, and the sub-joint (2) and the female joint (3) are provided with a certain positioning guide mechanism to realize flexible butt joint of structures; the structure is realized as follows: the female joint (3) comprises a body and feet (22), and the female joint (3) is pre-embedded into the segment through the feet (22) or welded at the end part of the segment; the body comprises an external base plate (211) and a flat introducing cavity (212) embedded in the segment, wherein an inlet (213) is formed in the plane of the base plate (211), and a through hole (214) is formed in the side part of the introducing cavity (212); the sub-joint (2) comprises a body and feet (32), and the sub-joint (2) is pre-embedded into the segment through the feet (32) or welded at the end part of the segment; the body of the sub-joint comprises an external substrate (311) and a flat tongue (312) inserted into the flat introducing cavity (212), the flat tongue (312) is arranged on the plane of the substrate (311) of the sub-joint, and a through hole (314) is arranged on the side part of the flat tongue (312);
the joint mechanism further comprises a pin bolt (4) and through holes distributed in adjacent sections; each sub-joint (2) is inserted into the corresponding female joint (3), and after the assembly reaches a preset position, a pin bolt (4) is inserted into a through hole in the segment to realize the integral fixation of the joint mechanism;
the above segments, joints and cotters, when the segments are removed and moved: according to the requirement, the pin bolt is pulled out, the joint is separated and the prestress is released after the pin bolt is unloaded when needed;
all the components except the prestressed inhaul cable are updated according to needs, and the components except the prestressed inhaul cable are assembled again in different places, so that the secondary use of the beam bridge is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993489.XA CN110820532B (en) | 2019-10-18 | 2019-10-18 | Design implementation method of beam type bridge girder structure capable of being repeatedly disassembled and assembled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993489.XA CN110820532B (en) | 2019-10-18 | 2019-10-18 | Design implementation method of beam type bridge girder structure capable of being repeatedly disassembled and assembled |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110820532A CN110820532A (en) | 2020-02-21 |
| CN110820532B true CN110820532B (en) | 2021-06-08 |
Family
ID=69549549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910993489.XA Active CN110820532B (en) | 2019-10-18 | 2019-10-18 | Design implementation method of beam type bridge girder structure capable of being repeatedly disassembled and assembled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110820532B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2286240A1 (en) * | 1974-09-24 | 1976-04-23 | Gozaloff Jean De | Self-supporting and demountable foot bridge - has modules held together by post-tensioned cables through them |
| EP0953088B1 (en) * | 1997-01-17 | 2001-06-20 | INDUO Gesellschaft zur Verwertung von Schutzrechten mbH & Co. KG | Supporting structure and its structural members |
| DE202005016209U1 (en) * | 2005-10-13 | 2006-02-09 | Rausch, Albert | Detachable building used as carport, includes supports comprising of metal strips formed with overlapping flanges that are bolted together |
| CN101050661A (en) * | 2007-04-17 | 2007-10-10 | 中铁工程设计咨询集团有限公司 | Pretensioning prestressed concrete T-shape beam and its producing method |
| CN102720123A (en) * | 2012-06-13 | 2012-10-10 | 田平绪 | Mountable and demountable road bridge |
| CN103015307A (en) * | 2012-12-13 | 2013-04-03 | 江苏省交通科学研究院股份有限公司 | Prestressed concrete pontoon |
| CN204589785U (en) * | 2015-04-14 | 2015-08-26 | 西安中交土木科技有限公司 | A kind of rectangular steel pipe negative and positive interfix joint |
| CN105064202A (en) * | 2015-07-17 | 2015-11-18 | 安徽省交通建设有限责任公司 | Profile steel and reinforced concrete slab assembled light composite beam bridge and construction method thereof |
| KR20180091310A (en) * | 2017-02-06 | 2018-08-16 | 주식회사 포유텍 | Modular truss girder for temporary bridge and installation structure thereof |
| CN108589916A (en) * | 2018-05-17 | 2018-09-28 | 东北林业大学 | A kind of precast prestressed assembled dry type node and assembly method |
| CN108842591A (en) * | 2018-06-29 | 2018-11-20 | 东南大学 | Configure the precast segment T beam bridge construction and construction method of internal external pre-stress bundle |
| CN109629421A (en) * | 2018-11-20 | 2019-04-16 | 同济大学 | A kind of subsection beam construction method for adding steel pipe and horizontal distribution reinforcing bar |
| CN109898404A (en) * | 2019-04-18 | 2019-06-18 | 重庆锦森腾建筑工程咨询有限公司 | A kind of unit construction bridge girder construction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9932734B1 (en) * | 2016-10-03 | 2018-04-03 | Roger Winter | Deck component with post sleeve and flanges |
-
2019
- 2019-10-18 CN CN201910993489.XA patent/CN110820532B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2286240A1 (en) * | 1974-09-24 | 1976-04-23 | Gozaloff Jean De | Self-supporting and demountable foot bridge - has modules held together by post-tensioned cables through them |
| EP0953088B1 (en) * | 1997-01-17 | 2001-06-20 | INDUO Gesellschaft zur Verwertung von Schutzrechten mbH & Co. KG | Supporting structure and its structural members |
| DE202005016209U1 (en) * | 2005-10-13 | 2006-02-09 | Rausch, Albert | Detachable building used as carport, includes supports comprising of metal strips formed with overlapping flanges that are bolted together |
| CN101050661A (en) * | 2007-04-17 | 2007-10-10 | 中铁工程设计咨询集团有限公司 | Pretensioning prestressed concrete T-shape beam and its producing method |
| CN102720123A (en) * | 2012-06-13 | 2012-10-10 | 田平绪 | Mountable and demountable road bridge |
| CN103015307A (en) * | 2012-12-13 | 2013-04-03 | 江苏省交通科学研究院股份有限公司 | Prestressed concrete pontoon |
| CN204589785U (en) * | 2015-04-14 | 2015-08-26 | 西安中交土木科技有限公司 | A kind of rectangular steel pipe negative and positive interfix joint |
| CN105064202A (en) * | 2015-07-17 | 2015-11-18 | 安徽省交通建设有限责任公司 | Profile steel and reinforced concrete slab assembled light composite beam bridge and construction method thereof |
| KR20180091310A (en) * | 2017-02-06 | 2018-08-16 | 주식회사 포유텍 | Modular truss girder for temporary bridge and installation structure thereof |
| CN108589916A (en) * | 2018-05-17 | 2018-09-28 | 东北林业大学 | A kind of precast prestressed assembled dry type node and assembly method |
| CN108842591A (en) * | 2018-06-29 | 2018-11-20 | 东南大学 | Configure the precast segment T beam bridge construction and construction method of internal external pre-stress bundle |
| CN109629421A (en) * | 2018-11-20 | 2019-04-16 | 同济大学 | A kind of subsection beam construction method for adding steel pipe and horizontal distribution reinforcing bar |
| CN109898404A (en) * | 2019-04-18 | 2019-06-18 | 重庆锦森腾建筑工程咨询有限公司 | A kind of unit construction bridge girder construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110820532A (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110820533B (en) | Bridge design method capable of realizing repeated disassembly and assembly and bridge thereof | |
| CN109958049B (en) | Modular steel-concrete combined small box girder simply-supported continuous bridge and construction method thereof | |
| JP2007016594A (en) | Synthetic panel structure, panel bridge structure, and construction method for continuous synthetic beam bridge | |
| CN110725193A (en) | Full-prefabricated steel pipe concrete space truss-UHPC waffle slab composite beam and construction method | |
| KR101335382B1 (en) | Constrution method of Prestressed Composite Truss girder with internal hinge structure | |
| CN110578289A (en) | Novel steel-concrete composite beam shear force connecting key | |
| CN108221636B (en) | Steel-concrete composite beam bridge constructed by adopting bracket-free scheme for midspan and bridge forming method | |
| WO2013081408A1 (en) | Prefabricated hybrid girder capable of applying prestress to girder using gap difference between contact surfaces of connective parts of blocks, method for applying prestress to prefabricated hybrid girder, continuation method for prefabricated hybrid girder, and manufacturing and assembling method thereof | |
| CN110820532B (en) | Design implementation method of beam type bridge girder structure capable of being repeatedly disassembled and assembled | |
| CN114197289A (en) | Assembling method of superposed beam type steel-concrete combined section | |
| KR100374284B1 (en) | A psc beam having above typed anchor blocks and connecting method thereof | |
| CN212103625U (en) | Detachable beam type bridge girder structure | |
| KR20080099061A (en) | Psc beam for connection steel width step of psc bridges | |
| KR20130081606A (en) | Method for continuous supporting structure of corrugated steel plate web-psc composite beam | |
| KR20050018358A (en) | Structure of continuous PSC beam with connection member and steel cross beam and bridge construction method using the same | |
| CN110820531B (en) | Repeatedly-detachable capping beam structure design and implementation method | |
| CN211340374U (en) | Novel steel-concrete composite beam shear force connecting key | |
| KR20140139703A (en) | Steel Connector Between Precast Segments and Connection Method | |
| KR20140065338A (en) | The continuous hybrid girder consist of concrete block and steel block which is can add prestress by gap difference between top and bottom of connection face of blocks | |
| KR20010073900A (en) | Continuous Preflex Beam Bridge and Constructing Method thereof | |
| KR200189311Y1 (en) | A psc beam having above typed anchor blocks | |
| CN212404780U (en) | Bridge capable of being repeatedly disassembled and assembled | |
| CN108729335B (en) | Steel-concrete combined section and installation method thereof | |
| KR100555251B1 (en) | The bridge construction method of having used girder equipped with the side projection fixing block in which multiple-purpose tension is possible, and this | |
| CN212247836U (en) | Special joint structure suitable for can repeat dismouting cylinder type pier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |