CN215561835U

CN215561835U - Quick expandable bridge based on X-shaped two-dimensional tensioning integral structure

Info

Publication number: CN215561835U
Application number: CN202120498804.4U
Authority: CN
Inventors: 于晓明; 纪燕霞
Original assignee: Suqian College
Current assignee: Suqian College
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2022-01-18
Anticipated expiration: 2031-03-09

Abstract

The utility model discloses a rapid expandable bridge based on an X-shaped two-dimensional tensioning integral structure, which comprises a bridge structure, wherein the bridge structure comprises a plurality of three-dimensional structure units, the three-dimensional structure units comprise four two-dimensional tensioning integral structure units, a plurality of supporting steel beams are uniformly arranged at the top of the bridge structure, and upper bridge decks are arranged at the tops of the supporting steel beams. Compared with the traditional temporary bridge structure, the structure utilizes the tensioning integral structure as a carrier, and the tensioning integral structure consists of the first connecting steel pipe, the second connecting steel pipe and the connecting steel cable, so that the storage rate is very high, all rod pieces can be folded together after storage, the weight is small, the size is small, and the transportation is convenient, therefore, the structure has great advantages compared with the traditional expandable bridge.

Description

Quick expandable bridge based on X-shaped two-dimensional tensioning integral structure

Technical Field

The utility model belongs to the technical field of bridging systems, and particularly relates to a rapid expandable bridge based on an X-shaped two-dimensional tensioning integral structure.

Background

The bridge system capable of being rapidly unfolded is an ideal choice for emergency rescue actions after natural disasters and artificial disasters occur. The traditional complete system type and assembly type bridge has the disadvantages of heavy weight, large volume and complex erection mechanism, so that a plurality of operators are required, the labor intensity is high, the erection speed is slow, the integral air-drop and air-transport of the equipment cannot be realized, and the maneuvering performance of the equipment is seriously influenced. Existing temporary bridge types: more or less beret bridges, TLB drag bridges, etc. have some of the disadvantages described above.

The expandable truss well overcomes the defects and can be used as a structural form of an expandable bridge. The expandable truss with more applications is mainly formed by combining the substructures of the scissor units and is driven by a jack, a hydraulic press and other equipment. Such structures are often used as temporary longitudinally stressed structures or as less stressed horizontal members. When the transverse force is large, the structure bears large axial force and bending moment, the stress of the truss rods is also large, and the stress is unreasonable. The drive device is always connected to the structure as part of the structure and cannot be removed. As a result, scissor-type expandable trusses rarely appear as bridge structures.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rapid expandable bridge based on an X-shaped two-dimensional tensioning integral structure, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a can expand bridge fast based on "X" type two dimension stretch-draw overall structure, includes the bridge construction, the bridge construction includes a plurality of three-dimensional constitutional units, and is a plurality of three-dimensional constitutional unit includes four two dimension stretch-draw overall structure units, the bridge construction top evenly is provided with a plurality of support girder steels, and is a plurality of support girder steel top all is provided with upper portion decking.

Preferably, two-dimentional stretch-draw overall structure unit includes plane cross unit, tip locking device, connecting cable and fixing device, plane cross unit end department all fixes and is provided with tip locking device, and is a plurality of be provided with connecting cable between the tip locking device, it is a plurality of the connecting cable all is provided with fixing device near the one end outside of tip locking device.

Preferably, the plane crossing unit comprises a first connecting steel pipe and a second connecting steel pipe, and both ends of the first connecting steel pipe and the second connecting steel pipe are connected with the end locking device.

Preferably, the middle parts of the first connecting steel pipe and the second connecting steel pipe are connected through a bolt.

Preferably, the four two-dimensional tensioning integral structure units are connected through connecting steel cables and fixing devices.

Preferably, the lower connecting parts of a plurality of three-dimensional structure units are connected through hinge joints.

Preferably, the bridge structure is formed by combining one or more rows of three-dimensional structure units.

Compared with the prior art, the utility model has the beneficial effects that:

(1) compared with the traditional temporary bridge structure, the structure utilizes the tensioning integral structure as a carrier, and the tensioning integral structure consists of the first connecting steel pipe, the second connecting steel pipe and the connecting steel cable, so that the storage rate is very high, all rod pieces can be folded together after storage, the weight is small, the size is small, and the transportation is convenient, therefore, the structure has great advantages compared with the traditional expandable bridge.

(2) The structure only uses the driving device in the unfolding process, when the structure reaches the unfolding position, the structure has a stable shape, and the driving device can be removed to be used as the structure at any time. When the tension member is used as a bridge structure, the rigidity and the bearing capacity of the whole structure are increased due to the existence of the four-side connecting steel cable of the two-dimensional tension integral structure unit, and the lower connecting steel cable is used as a tension member to bear the tension force generated by bending moment and reduce the stress of other members. The steel beam at the lower part of the upper bridge deck is placed at the position of the connecting steel cable at the upper part and can bear the pressure generated by bending moment. Compared with a shear type unit combined structure, each part of the structure is more clearly and reasonably stressed, and the strength of the material is fully utilized.

Drawings

FIG. 1 is a schematic structural view of a two-dimensional tensioned monolithic structural unit of the present invention;

FIG. 2 is a schematic view of the two-dimensional tensioned monolithic structural unit of the present invention in an expanded and locked state;

FIG. 3 is a schematic structural view of a three-dimensional structural unit according to the present invention;

FIG. 4 is a schematic structural diagram of a bridge structure based on three-dimensional structural units according to the present invention;

FIG. 5 is a front elevation view of the bridge construction of the present invention in a semi-collapsed condition;

FIG. 6 is a side elevational view of the bridge construction of the present invention in a semi-collapsed condition;

FIG. 7 is a front elevation view of the bridge construction of the present invention in a collapsed condition;

FIG. 8 is a side elevational view of the bridge construction in a folded condition in accordance with the present invention.

In the figure: 1. a bridge structure; 2. a three-dimensional structural unit; 3. two-dimensional tensioning integral structure units; 4. supporting the steel beam; 5. an upper deck slab; 6. a plane crossing unit; 7. an end locking device; 8. connecting a steel cable; 9. a fixing device; 10. a first connecting steel pipe; 11. and the second connecting steel pipe.

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 8, the utility model provides a rapid expandable bridge based on an X-shaped two-dimensional tensioning integral structure, which comprises a bridge structure 1, wherein the bridge structure 1 comprises a plurality of three-dimensional structural units 2, the plurality of three-dimensional structural units 2 comprise four two-dimensional tensioning integral structural units 3, a plurality of supporting steel beams 4 are uniformly arranged on the top of the bridge structure 1, and upper bridge decks 5 are arranged on the tops of the supporting steel beams 4.

In this embodiment, preferably, the two-dimensional integral tensioning structural unit 3 includes a planar crossing unit 6, an end locking device 7, a connecting steel cable 8 and a fixing device 9, the end of the planar crossing unit 6 is fixedly provided with the end locking device 7, the connecting steel cable 8 is arranged between the end locking devices 7, and the fixing device 9 is arranged outside one end of each connecting steel cable 8 close to the end locking device 7.

In this embodiment, preferably, the plane crossing unit 6 includes a first connecting steel pipe 10 and a second connecting steel pipe 11, and both ends of the first connecting steel pipe 10 and the second connecting steel pipe 11 are connected to the end locking device 7.

In this embodiment, it is preferable that the first connecting steel pipe 10 and the second connecting steel pipe 11 are connected by a bolt at the middle portion.

In this embodiment, preferably, four two-dimensional tension monolithic structural units 3 are connected with each other through connecting cables 8 and fixing devices 9.

In this embodiment, preferably, the lower connecting portions of the three-dimensional structure units 2 are connected by hinge joints.

In the present embodiment, the bridge structure 1 is preferably formed by combining one or more rows of three-dimensional structural units 2.

The working principle and the using process of the utility model are as follows: in the application process of the rapid expandable bridge, the middle parts of a first connecting steel pipe 10 and a second connecting steel pipe 11 in each plane crossing unit 6 in a two-dimensional tensioning integral structure are connected together through a bolt, the ends of the first connecting steel pipe 10 and the second connecting steel pipe 11 are connected through four sides of connecting steel cables 8, the four sides of connecting steel cables 8 penetrate into an end locking device 7, when each plane crossing unit 6 is expanded along the horizontal direction of the bridge structure 1, a fixing device 9 at the end of each connecting steel cable 8 enters into the end locking device 7 to be locked, the process realizes the automatic shape finding of the two-dimensional tensioning integral structure unit 3, four two-dimensional tensioning integral structure ends can form a three-dimensional structure unit 2 which is a cuboid, the combination of a plurality of three-dimensional structure units 2 can form the bridge structure 1, and the bridge structure 1 of the whole expandable bridge can be formed by combining one or a plurality of rows of three-dimensional structure units 2, the parts that each three-dimensional structure unit 2 lower part links to each other are linked to each other by articulated node, thereby can realize the expansion shrink freely based on "X" type two-dimentional stretch-draw overall structure's quick deployable bridge, the expansion of bridge structures 1 uses accessible hydraulic equipment to exert pressure from the unilateral, when reaching the assigned position, through the use of tip locking device 7 and fixing device 9 with whole structure locking, hydraulic equipment just can be removed after the overall structure state of bridge structures 1 stabilizes, then connect the position of supporting girder steel 4 at each three-dimensional structure unit 2's upper portion connection cable wire 8, lay upper portion decking 5 at last, at this moment, whole bridge erection finishes, under the cooperation of corresponding equipment, the speed of whole process will be very fast, will save a large amount of time for the emergency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quick deployable bridge based on "X" type two dimension stretch-draw overall structure, includes bridge structures (1), its characterized in that: bridge construction (1) includes a plurality of three-dimensional structure unit (2), and is a plurality of three-dimensional structure unit (2) include four two-dimentional stretch-draw overall structure unit (3), bridge construction (1) top evenly is provided with a plurality of supporting girder steel (4), and is a plurality of supporting girder steel (4) top all is provided with upper portion decking (5).

2. The fast expandable bridge based on the X-shaped two-dimensional tensioning monolithic structure as claimed in claim 1, is characterized in that: two-dimensional stretch-draw overall structure unit (3) are including plane cross unit (6), tip locking device (7), connecting cable (8) and fixing device (9), plane cross unit (6) end department all fixes and is provided with tip locking device (7), and is a plurality of be provided with connecting cable (8) between tip locking device (7), it is a plurality of the one end outside that connecting cable (8) are close to tip locking device (7) all is provided with fixing device (9).

3. The fast expandable bridge based on the X-shaped two-dimensional tensioning monolithic structure as claimed in claim 2, is characterized in that: the plane crossing unit (6) comprises a first connecting steel pipe (10) and a second connecting steel pipe (11), and two ends of the first connecting steel pipe (10) and two ends of the second connecting steel pipe (11) are connected with the end locking device (7).

4. The fast expandable bridge based on the X-shaped two-dimensional tensioning monolithic structure as claimed in claim 3, is characterized in that: the middle parts of the first connecting steel pipe (10) and the second connecting steel pipe (11) are connected through bolts.

5. The fast expandable bridge based on the X-shaped two-dimensional tensioning monolithic structure as claimed in claim 2, is characterized in that: the four two-dimensional tensioning integral structure units (3) are connected with each other through connecting steel cables (8) and fixing devices (9).

6. The fast expandable bridge based on the X-shaped two-dimensional tensioning monolithic structure as claimed in claim 1, is characterized in that: the lower connecting parts of the three-dimensional structure units (2) are connected through hinged nodes.

7. The fast expandable bridge based on the X-shaped two-dimensional tensioning monolithic structure as claimed in claim 1, is characterized in that: the bridge structure (1) is formed by combining one or more rows of three-dimensional structure units (2).