CN220450677U

CN220450677U - Be applied to and hang equipment of irritating continuous beam number 0 section

Info

Publication number: CN220450677U
Application number: CN202321677283.4U
Authority: CN
Inventors: 周光忠; 郭波; 姜敏; 王冰; 常祝; 李方柯; 杨建福; 姜海军; 朵君泰; 刘卫华; 孙野; 胡莲
Original assignee: China Railway Fifth Survey and Design Institute Group Co Ltd; China Railway Construction Corp Ltd CRCC
Current assignee: China Railway Fifth Survey and Design Institute Group Co Ltd; China Railway Construction Corp Ltd CRCC
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-02-06
Anticipated expiration: 2033-06-29

Abstract

The embodiment of the application provides a be applied to and hang equipment of irritating continuous beam number 0 section, include: the first beam erecting machine and the second beam erecting machine. The first girder erection machine is provided with a first girder, the second girder erection machine is provided with a second girder, the second girder and the first girder are symmetrically arranged on two sides of the construction girder section, and the first girder and the second girder are detachably connected. The equipment applied to the No. 0 section of the cantilever continuous beam can adopt a pretensioning method to construct No. Duan Shuxiang prestressed tendons in a cantilever mode, and the problem that no matched equipment is applied to the No. Duan Shuxiang prestressed tendons in the pretensioning method in the prior art can be solved by simply assembling and constructing other beam sections.

Description

Be applied to and hang equipment of irritating continuous beam number 0 section

Technical Field

The application relates to the field of bridge cantilever pouring construction, in particular to equipment applied to a No. 0 section of a cantilever pouring continuous beam.

Background

The vertical prestressed tendons are applied to the continuous box girder bridge, so that the main tensile stress caused by load can be effectively overcome, the development of web cracks is restrained, and the durability of the bridge is improved. At present, the vertical prestress material of the box girder bridge designed in China is finish rolling twisted steel, and post-tensioning construction is adopted.

At present, the vertical prestress of the continuous beam construction adopts a post-tensioning method, no. 0 Duan Hunning soil is poured by utilizing a cast-in-situ bracket method, the longitudinal prestress rib and the vertical prestress rib are tensioned after the concrete reaches a certain strength, and then suspension grouting equipment is arranged on the No. 0 section to construct other beam sections.

However, the vertical prestressed tendons have the risk of slurry leakage caused by vibration in the construction process by adopting a post-tensioning method, the grouting quality is difficult to ensure, and the prestressed tendons are easy to corrode. Aiming at the problems existing in post-tensioning construction, the method adopts the pre-tensioning construction method to construct the vertical prestressed tendons: the continuous beam No. 0 section is divided into a No. A0-1 beam section and a No. A0-2 beam section, the No. A0-2 beam section is positioned on the No. A0-1 beam Duan Liangce, the No. A0-1 beam section is directly cast and molded, and the No. A0-2 beam section needs to be constructed with a pretensioning method to construct a vertical prestressed tendon. However, the extension length of the A0-1 beam section of the continuous beam is small (for example, 4 meters), when the A0-2 beam section is constructed, the A0-1 beam section cannot accommodate two girder erection machines with conventional sizes at the same time, only the girder erection machines can be disassembled to reduce the sizes, if the two girder erection machines are still arranged independently after the disassembly, the space on the A0-1 beam section is less, the fixing structures for respectively fixing the two girder erection machines are difficult to set, the stability of the two girder erection machines is poor, and the construction quality is not beneficial to improvement.

Disclosure of Invention

The embodiment of the application provides equipment applied to a No. 0 section of a suspension-grouting continuous beam, and solves the problem that no matched equipment is applied to a No. Duan Shuxiang prestressed reinforcement in pretensioning construction at present.

The application provides the following technical scheme:

an apparatus for use in a cantilever beam segment 0, comprising:

a first beam erecting machine having a first main beam;

the second girder erection machine is provided with a second girder, the second girder and the first girder are symmetrically arranged on two sides of the construction girder section, and the first girder and the second girder are detachably connected.

Optionally, the equipment applied to the No. 0 section of the suspension irrigation continuous beam comprises a connecting piece;

the connecting piece is detachably connected with the first girder and the second girder respectively.

Optionally, one end of the first main beam, which is close to the second main beam, is provided with a plurality of first connecting holes;

one end of the second main beam, which is close to the first main beam, is provided with a plurality of second connecting holes;

the connecting piece is connected to the first connecting hole and the second connecting hole through fasteners respectively.

Optionally, the connecting piece comprises a backing plate;

the backing plates are respectively attached to the first main beam and the second main beam;

the two sides of the backing plate are respectively provided with the third connecting hole and the fourth connecting hole;

each third connecting hole is connected with the corresponding first connecting hole through a fastener, and each fourth connecting hole is connected with the corresponding second connecting hole through a fastener.

Optionally, the first main beam and the second main beam are provided with four plate bodies along the circumferential direction;

the four plate bodies of the first main beam are provided with the first connecting holes, and the four plate bodies of the second main beam are provided with the second connecting holes;

the connecting piece comprises four groups of backing plates, and each group of backing plates are respectively attached to two opposite plate bodies of the first main beam and the second main beam.

Optionally, each set of backing plates includes an inner backing plate and an outer backing plate;

the inner backing plates are attached to the inner surfaces of the plate bodies of the first main beam and the second main beam, and the outer backing plates are attached to the outer surfaces of the plate bodies of the first main beam and the second main beam;

fasteners are disposed through the inner and outer backing plates.

Optionally, the fastener includes a bolt and a nut;

the nut of the bolt is positioned in the inner cavity of the first girder or the second girder, and the nut is positioned outside the first girder or the second girder.

Optionally, the device applied to the No. 0 section of the suspension irrigation continuous beam further comprises an additional beam section;

the additional beam Duan Yongyu is disposed between the first and second girders when one of the first and second girders is moved, and connects the moved first or second girders.

Optionally, the device applied to the No. 0 section of the suspension irrigation continuous beam further comprises a walking beam and two reaction frames;

the walking beam is arranged between the construction beam section and the main beam;

the two reaction frames are used for being fixed at two ends of a construction beam section respectively, a first jack and a second jack are arranged on the two reaction frames, the first jack is used for supporting the walking beam, and the second jack is used for supporting the first main beam or the second main beam.

Optionally, the reaction frame comprises a longitudinal beam and a plurality of cross beams;

one end of each cross beam is used for being connected and fixed to a construction beam section, and the other end of each cross beam is connected to the longitudinal beam;

the first jack is connected to the cross beam, and the second jack is connected to the longitudinal beam.

Optionally, the equipment applied to the suspension irrigation continuous beam No. 0 section comprises: the concrete bridge comprises a bottom platform and a plurality of counterforce columns, wherein the bottom platform is respectively arranged at two sides of the concrete bridge pier, the counterforce columns are respectively connected with the bottom platform and the first girder or the second girder, one end of each vertical prestressed tendon is connected with the bottom platform, and the other end of each vertical prestressed tendon is connected with an anchor device arranged on the first girder or the second girder.

By adopting the technical scheme, the embodiment of the application has the following technical effects:

the equipment applied to the No. 0 section of the cantilever continuous beam can adopt a pretensioning method to construct No. Duan Shuxiang prestressed tendons in a cantilever mode, and the problem that no matched equipment is applied to the No. Duan Shuxiang prestressed tendons in the pretensioning method in the prior art can be solved by simply assembling and constructing other beam sections.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 shows a schematic structural diagram of a connection between a first main beam and a second main beam of an apparatus applied to a section 0 of a cantilever continuous beam according to an embodiment of the present application;

fig. 2 is a schematic cross-sectional structure diagram of a connection between a first main beam and a second main beam of an apparatus for a No. 0 section of a continuous beam for suspension irrigation according to an embodiment of the present application;

fig. 3 shows a state diagram of a beam segment A0-2 of the equipment construction applied to a beam segment 0 of a cantilever-irrigation continuous beam provided in an embodiment of the present application;

FIG. 4 shows a schematic illustration of further casting of A0-2 beam section concrete on the basis of FIG. 3;

fig. 5 shows a schematic view of a further installation of a reaction frame on the basis of fig. 4;

FIG. 6 shows a schematic view of the walking beam further mounted on the right side of FIG. 5;

FIG. 7 shows a schematic view of further mounting of additional beam segments on the basis of FIG. 6;

FIG. 8 shows a schematic view of the further installed post anchor system based on FIG. 7;

fig. 9 shows a schematic view of further controlling the travel beam back to section 0 of the continuous beam on the basis of fig. 8.

Reference numerals: 1. a first main beam; 2. a second main beam; 3. walking the walking beam; 4. a reaction frame; 41. a longitudinal beam; 42. a cross beam; 5. an additional beam section; 6. a first jack; 7. a second jack; 8. prestress rib; 9. a bottom platform; 10. a reaction column; 11. a first driving device; 12. a second driving device; a. a number A0-1 beam section; b. a number A0-2 beam section; c. an inner backing plate; d. an outer backing plate; e. a fastener; e1, a bolt; e2, nuts; f. a plate body; g. and (3) pier.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is given with reference to the accompanying drawings, and it is apparent that the described embodiments are only some of the embodiments of the present application and not exhaustive of all the embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

In the description of the present application and its embodiments, it should be understood that the terms "top," "bottom," "height," and the like indicate an orientation or positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application.

In this application and in its embodiments, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed, unless otherwise explicitly stated and defined as such; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application and in its embodiments, unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1 to 9, an embodiment of the present application provides an apparatus for a number 0 section of a cantilever continuous beam, including a first beam erecting machine and a second beam erecting machine. The first girder erection machine is provided with a first girder 1, the second girder erection machine is provided with a second girder 2, the second girder 2 and the first girder 1 are symmetrically arranged on two sides of a construction girder section, and the first girder 1 and the second girder 2 are detachably connected. The equipment applied to the No. 0 section of the suspension irrigation continuous beam further comprises a bottom platform 9 and reaction columns 10, wherein the bottom platform 9 is arranged on two sides of the concrete bridge pier g, and the reaction columns 10 are respectively connected with the bottom platform 9 and the corresponding main beams. One end of the vertical prestressed tendon 8 is connected with the bottom platform 9, and the other end is connected with an anchorage device arranged on the main girder.

The continuous beam No. 0 section is divided into a No. A0-1 beam section a and a No. A0-2 beam section b, the No. A0-2 beam section b is positioned on two sides of the No. A0-1 beam section a, the No. A0-1 beam section a is directly cast and molded, and the No. A0-2 beam section b can be used for constructing the vertical prestressed tendons 8 by adopting the pretensioning method by adopting the equipment of the application. The extension length of the A0-1 beam section a of the continuous beam is small (for example, 4 meters), when the A0-2 beam section b is constructed, the A0-1 beam section a is small in size and small in provided space. And when other beam sections are constructed in the later period, the two beam erecting machines can be detached and are respectively and independently arranged, and the problem that no matched equipment is applied to pre-tensioning method construction No. Duan Shuxiang prestressed tendons 8 at present is solved by simply assembling and constructing other beam sections.

The equipment applied to the No. 0 section of the suspension irrigation continuous beam comprises connecting pieces, wherein the connecting pieces are respectively detachably connected with the first main beam 1 and the second main beam 2. Through the setting of connecting piece, can conveniently connect first girder 1 and second girder 2 respectively, make things convenient for the dismouting of later stage first girder 1 and second girder 2.

The first girder 1 is close to the one end of second girder 2 sets up a plurality of first connecting holes, the second girder 2 is close to the one end of first girder 1 sets up a plurality of second connecting holes, the connecting piece pass through fastener e connect in first connecting hole with the second connecting hole respectively. Through reserving the connecting hole at the tip of first girder 1 and second girder 2, make things convenient for connecting piece both sides to be connected in first girder 1 and second girder 2 through fastener e respectively. The arrangement of a plurality of connecting holes increases the number of fasteners e between the main beam and the connecting pieces, and increases the strength of the assembly structure.

The connecting piece may include a pad, which is attached to the first girder 1 and the second girder 2, respectively. The two sides of the backing plate are respectively provided with the third connecting hole and the fourth connecting hole. Each third connecting hole is connected with the corresponding first connecting hole through a fastener e, and each fourth connecting hole is connected with the corresponding second connecting hole through a fastener e. The ends of the first main beam 1 and the second main beam 2 can be propped against each other, the gaskets are respectively attached to the first main beam 1 and the second main beam 2, and the cushion plate does not occupy the space between the first main beam 1 and the second main beam 2, so that the space is saved.

Referring to fig. 1 and 2, the first main beam 1 and the second main beam 2 are provided with four plates f along the circumferential direction, the four plates f of the first main beam 1 are provided with the first connecting holes, and the four plates f of the second main beam 2 are provided with the second connecting holes. The connecting piece comprises four groups of base plates, and each group of base plates are respectively attached to two opposite plate bodies f of the first main beam 1 and the second main beam 2.

The girder cross-section is the rectangle, totally four faces, and in this application embodiment, four faces (plate body) that first girder 1 and second girder 2 are relative all are connected through the gasket, have improved the connection structural strength of first girder 1 and second girder 2, and first girder 1 and second girder 2 are not unexpected to drop.

Further, referring to fig. 2, each group of the pad plates includes an inner pad plate c and an outer pad plate d, wherein the inner pad plate c is attached to the inner surfaces of the plate bodies f of the first main beam 1 and the second main beam 2, and the outer pad plate d is attached to the outer surfaces of the plate bodies f of the first main beam 1 and the second main beam 2. A fastener e is disposed through the inner pad c and the outer pad d. Through the arrangement of the inner backing plate c and the outer backing plate d, the inner surface and the outer surface of the plate body f of the main beams are protected, and the fastening pieces e are also beneficial to stably connecting the two main beams.

Referring to fig. 1, the fastener e may include a bolt e1 and a nut e2, the nut of the bolt e1 being located in the inner cavity of the first girder 1 or the second girder 2, and the nut e2 being located outside the first girder 1 or the second girder 2. The main beam can be provided with an opening, so that an operator can conveniently enter the main beam. In the assembly process, an operator enters the main beam, and the screw rod of the bolt e1 penetrates through the inner base plate c and the plate body f, so that the screw rod extends out of the outer base plate d, and the nut e2 is conveniently installed on the screw rod outside the main beam by another operator.

Referring to fig. 7, the apparatus applied to the section 0 of the cantilever continuous beam further includes an additional beam section 5, wherein the additional beam section 5 is configured to be disposed between the first main beam 1 and the second main beam 2 when one of the first main beam 1 and the second main beam 2 moves, and to connect the moved first main beam 1 or second main beam 2. The additional beam section 5 can be fixed on the A0-1 beam section a of the No. 0 section of the suspension irrigation continuous beam through a rear anchor system, and plays a role in fixing the corresponding main beam. The connection structure of the additional beam section 5 and the main beams may be identical to the connection structure of the two main beams above.

Referring to fig. 5 and 6, the device applied to the section 0 of the cantilever continuous beam further comprises a walking beam 3 and two reaction frames 4, wherein the walking beam 3 is arranged between the construction beam section and the main beam. The two reaction frames 4 are used for being fixed in the both ends of construction beam section respectively, all set up first jack 6 and second jack 7 on two reaction frames 4, first jack 6 is used for supporting walk walking beam 3, provide and walk walking beam 3 walking support, second jack 7 and walk walking beam 3 and be used for supporting the girder, do benefit to the girder and remove.

Referring to fig. 6, a first driving device 11 and a second driving device 12 may be disposed between the main beam and the walking beam, the first driving device 11 is used for driving the walking beam 3 to move, and the second driving device 12 is used for driving the main beam to move.

Referring to fig. 5 and 6, the reaction frame 4 includes a longitudinal beam 41 and a plurality of cross beams 42, wherein a uniform end of each cross beam 42 is used for connecting and fixing to a construction beam section (such as a number A0-2 beam section b connected to a number 0 continuous beam section), the other end of each cross beam 42 is connected to the longitudinal beam 41, the first jack 6 is connected to the cross beam 42, and the second jack 7 is connected to the longitudinal beam 41. The A0-2 beam section b of the No. 0 continuous beam section can be provided with an embedded part, and the cross beam 42 can be connected to the embedded part.

The following provides a workflow employing the present application to the equipment of section 0 of a cantilever beam.

S1, referring to FIG. 3, pouring an A0-1 beam section a of a continuous beam 0 section, connecting a first main beam of a first beam erecting machine and a second main beam of a second beam erecting machine together through a connecting piece in the A0-1 beam section a, adjusting the height of a vertical formwork to bind common reinforcing steel bars, and tensioning the vertical prestressed tendons 8.

And S2, referring to FIG. 4, pouring the concrete of the A0-2 beam section b of the No. 0 continuous beam section.

And S3, referring to FIG. 5, tensioning the longitudinal prestressed tendons 8, grouting, then placing Zhang Shuxiang prestressed tendons, and installing a reaction frame 4 on the A0-2 beam sections b at two sides.

In step S4, referring to fig. 6, the right walking beam 3 is installed in place, and the walking beam 3 is supported by the first jack 6 on the reaction frame 4.

Step S5, referring to FIG. 7, the first main beam 1 and the second main beam 2 are removed, the second main beam 2 is moved forward by 2m, the additional beam section 5 is installed, and the two additional ends are fixedly connected with the second main beam 2.

Step S6, referring to FIG. 8, a rear anchor system is arranged on the additional beam section 5, and the rear anchor system is fixed on the A0-1 beam section a.

Step S7, referring to FIG. 9, the operation walking beam 3 is retreated to the No. 0 section of the continuous beam and fixed.

And S8, after the left second main beam 2 is shaped and positioned in the same way as the above, casting the concrete of the next section.

The device applied to the No. 0 section of the cantilever continuous beam, which is disclosed by the application, is convenient to adopt the pretensioning method to cantilever the No. 0 Duan Shuxiang prestressed tendons 8, and can also construct the rest beam sections through simple assembly and cantilever, so that the problem that no matched device is applied to the pretensioning method to construct the No. 0 Duan Shuxiang prestressed tendons 8 at present is solved. The equipment of this application can the furthest reuse construction equipment, need not to develop equipment again to the No. 0 section, avoids the material extravagant, has practiced thrift the cost.

The vertical prestressed tendons 8 can be constructed by adopting the pretensioning method smoothly through the device, the prestress is applied through the bonding of the concrete and the prestressed tendons, the pre-buried pipeline and grouting are not needed, hidden danger caused by the existing post-tensioning method construction is avoided, and the safe operation of business lines is ensured.

The application method of the device applied to the No. 0 section of the cantilever continuous beam provided by the patent not only can adopt the pretensioning method to cantilever the No. 0 Duan Shuxiang prestressed tendons 8, but also can construct other beam sections through simple assembly cantilever equipment, and solves the problem that no matched device is applied to the pretensioning method to construct the No. 0 Duan Shuxiang prestressed tendons 8 at present.

The above disclosure provides many different embodiments or examples for implementing different structures of the present application. The components and arrangements of specific examples are described above in order to simplify the disclosure of this application. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. Be applied to and hang equipment of irritating continuous beam number 0 section, characterized in that includes:

a first beam erecting machine having a first main beam;

2. The apparatus for use in section 0 of a cantilever continuous beam of claim 1, comprising a connector;

3. The device for applying to section 0 of the cantilever-irrigation continuous beam according to claim 2, wherein the first main beam has a plurality of first connection holes near one end of the second main beam;

4. The apparatus for use in section 0 of a cantilever continuous beam of claim 3, wherein the connector comprises a backing plate;

the two sides of the backing plate are respectively provided with a third connecting hole and a fourth connecting hole;

5. The apparatus for use in section 0 of a cantilever continuous beam according to claim 4, wherein the first main beam and the second main beam are each provided with four plates along a circumferential direction;

6. The apparatus for applying to section 0 of a suspension-grouting continuous beam as recited in claim 5, wherein each set of pads includes an inner pad and an outer pad;

fasteners are disposed through the inner and outer backing plates.

7. The apparatus for use in cantilever beam section 0 according to claim 3, wherein the fastener comprises a bolt and a nut;

8. The apparatus for use in cantilever beam segment 0 according to claim 1, further comprising an additional beam segment;

9. The apparatus for use in section 0 of a cantilever continuous beam of claim 1, further comprising a walking beam and two reaction frames;

10. The apparatus for applying to section 0 of a cantilever continuous beam according to claim 9, wherein the reaction frame comprises a longitudinal beam and a plurality of cross beams;

11. The apparatus for use in a cantilever beam segment 0 according to any one of claims 1-10, comprising: the concrete bridge pier comprises a vertical prestressed rib, a bottom platform and a plurality of counterforce columns, wherein the bottom platform is respectively arranged on two sides of the concrete bridge pier, the counterforce columns are respectively connected with the bottom platform and the first girder or the second girder, one end of the vertical prestressed rib is connected with the bottom platform, and the other end of the vertical prestressed rib is connected with an anchor device arranged on the first girder or the second girder.