CN116122165A - Lifting device and lifting method for bridge construction platform - Google Patents

Abstract

The invention discloses a lifting device and a platform lifting method of a bridge construction platform, and relates to the field of bridge construction, wherein the device comprises a lifting device of the bridge construction platform, and the lifting device comprises the following components: a support assembly and a lifting assembly; the support assembly is used for being erected on a ground foundation; the lifting assembly comprises a driving part and a suspender part, wherein the driving part is erected on the supporting assembly, one end of the suspender part is used for being connected with a construction platform, the driving part is movably connected with the suspender part, and the driving part can drive the suspender part to axially move along the suspender part so as to drive the construction platform to ascend or descend. Compared with the conventional construction platform, the lifting device is simpler in construction, the lifting device can be used for adjusting the height according to the requirement, and multiple dismounting and mounting construction is avoided.

Description

Lifting device and lifting method for bridge construction platform

Technical Field

The invention relates to the technical field of bridge construction, in particular to a lifting device and a platform lifting method for a bridge construction platform.

Background

Along with the continuous transition of the times, the traffic industry rapidly develops, bridges are indispensable in traffic construction, and the bridges generally refer to buildings which are erected on rivers, lakes and seas and enable vehicles, pedestrians and the like to pass smoothly, and along with the gradual increase of the requirements of bridge construction, the bridge construction needs to face different environments. When constructors perform bridge construction in mountain areas of the highland, due to complex geological conditions of the mountain areas, the construction sites are located in deep canyon zones. In order to meet the construction requirement, a construction platform is required to be built. The setting of construction platform often needs to throw in a large amount of cost, in order to satisfy the job face of different altitudes, need carry out dismantlement and repacking many times to the steel platform, causes the time limit for a project extension, and the cost increases.

Disclosure of Invention

Aiming at the problems of prolonged construction period and increased input cost caused by repeated disassembly, assembly and deletion of bridge construction platforms in the prior art in order to meet the operation requirements of different heights.

The invention aims to provide a lifting device of a bridge construction platform, which comprises: the support component is used for being erected on a ground foundation; the lifting assembly comprises a driving part and a suspender part, wherein the driving part is erected on the supporting assembly, one end of the suspender part is used for being connected with a construction platform, the driving part is movably connected with the suspender part, and the driving part can drive the suspender part to axially move along the suspender part so as to drive the construction platform to ascend or descend.

In some embodiments, the driving part includes:

the first anchoring piece is erected on the supporting component and is used for anchoring or releasing the anchoring with the suspender part;

the lifting piece is placed on the first anchoring piece, the lifting piece can stretch out and draw back in the vertical direction, a second anchoring piece is arranged on the lifting piece and used for anchoring or releasing anchoring with the suspender part, and the lifting piece enables the second anchoring piece to ascend or fall back through stretching action.

In some embodiments, the boom portion comprises:

a boom body for anchoring with the first anchor and/or the second anchor;

the distribution beam is arranged at one end of the boom main body in a group mode and is used for bearing the construction platform.

In some embodiments, the second anchor comprises a hanger beam having an end for anchoring or de-anchoring with the hanger beam.

In some embodiments, the support assembly comprises:

the high support is supported on the ground foundation;

the Bailey beam is erected on the height-connecting support, and the Bailey beam is arranged below the hanging beam body of the second anchoring piece.

In some embodiments, two sides of the bailey beam in the width direction are provided with upper limiting pieces, and the upper limiting pieces are propped against the lower part of the first anchoring piece.

In some embodiments, the height-engaging bracket is engaged with the ground foundation.

In another aspect, the present application provides a platform lifting method using the lifting device, which includes the following steps:

constructing a supporting component, and installing at least one lifting component and the construction platform on the supporting component;

the driving part of the lifting assembly drives the suspender part to axially move so as to enable the construction platform to ascend or descend until the construction platform moves to a preset construction position.

In some embodiments, the driving part of the lifting assembly drives the boom part to move axially so as to lift the construction platform, including:

s1, anchoring a boom part of the lifting assembly and a second anchoring part of the driving part, and keeping the boom part and a first anchoring part of the driving part in an unbuckled state;

s2, controlling a jacking piece of the driving part to jack the second anchoring piece so as to enable the suspender part to axially move along the suspender part and drive the construction platform to ascend;

s3, anchoring the boom portion with the first anchoring member, and de-anchoring the boom portion with the second anchoring member;

s4, controlling the jacking piece to fall back to the initial height so that the second anchoring piece falls back together with the jacking piece;

s5, repeating the steps S1-S4 until the construction platform rises to a first preset height.

In some embodiments, the driving part of the lifting assembly drives the boom part to move axially so as to lower the construction platform, including:

A1. anchoring the boom portion to the first anchor and maintaining the boom portion and the second anchor in an un-anchored state;

A2. after the jacking piece is controlled to jack the second anchoring piece to a limit height, the boom part and the second anchoring piece are anchored;

A3. releasing the anchoring of the boom portion and the first anchoring member, and controlling the jacking member to fall back to an initial state;

A4. repeating the steps A1-A3 until the construction platform descends to a second preset height.

Compared with the prior art, the invention has the advantages that: compared with the conventional construction platform, the lifting device is simpler in construction and can be adjusted in height according to the requirement by arranging the lifting rod as the fixing and lifting device of the platform, so that multiple dismounting and mounting construction is avoided. According to the lifting device, the lifting piece and the anchoring piece are matched with the hanging rod, the platform is lifted and lowered simply, conveniently and skillfully, the height of the platform can be adjusted on the premise that heavy equipment is not required to be used or the heavy equipment is dismounted and mounted again, and the lifting device is more suitable for bridge construction in a mountain area complex environment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of a bridge construction platform according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the embodiment of FIG. 1 taken at a perspective 1-1 in accordance with the present invention;

FIG. 3 is a cross-sectional view of the embodiment of FIG. 1 taken at a perspective 1-1 in accordance with the present invention;

FIG. 4 is a cross-sectional view at 3-3 in accordance with the embodiment of the present invention.

In the figure: 1. a support assembly; 11. a height-connecting bracket; 111. bracket; 12. bailey beam; 121. an upper limit member; 122. a lower limit member; 13. a support beam; 2. a ground foundation; 3. a lifting assembly; 31. a driving section; 311. a first anchor; 312. a jacking member; 313. a second anchor; 32. a boom portion; 321. a boom body; 4. a construction platform; 41. a distribution beam.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein. The following describes embodiments of the present invention in further detail with reference to the accompanying drawings, and aims at the problems of prolonged construction period and increased input cost caused by multiple disassembly and assembly operations of bridge construction platforms in the prior art in order to meet the operation requirements of different heights, as shown in fig. 1, the present application provides a lifting device of the bridge construction platform, which is characterized in that the lifting device comprises: a support assembly 1, at least one lifting assembly 3; wherein,,

a support assembly 1 mounted on a ground foundation 2; the lifting assembly 3 comprises a driving part 31 and a boom part 32, the driving part 31 is erected on the supporting assembly 1, the boom part 32 is connected with a construction platform 4, the driving part 31 is movably connected with the boom part 32, and the driving part 31 is used for driving the boom part 32 to axially move so as to enable the construction platform 4 to ascend or descend.

In some embodiments, as shown in fig. 1, the lifting device comprises four lifting assemblies 3 in total for the force demand. It should be noted that the number of lifting assemblies 3 is determined by the constructor according to factors such as the weight and shape of the platform, and is not limited to the number defined above.

It can be understood that, in the present application, the driving portion 31 and the boom portion 32 move axially to drive the construction platform 4 to rise or fall, so that the constructor can perform safe construction operations at different heights without repeated disassembly and assembly.

In some specific embodiments, as shown in fig. 2, the driving part 31 includes: a first anchor 311, a jacking member 312, and a second anchor 313; wherein,,

a first anchor 311 installed on the support assembly 1, the first anchor 311 being configured to be anchored to or released from the boom portion 32; a jacking member 312 is placed on the first anchor 311, the jacking member 312 being for jacking or dropping back in the vertical direction; a second anchor 313 provided on the jacking member 312, the second anchor 313 being for anchoring or un-anchoring with the boom portion 32. Specifically, the first anchor 311 is mounted on the support assembly 1 without moving throughout the lifting process, and the lifting member 312 is located between the first anchor 311 and the second anchor 313.

When it is necessary to raise the construction platform 4, the constructor anchors the boom 32 to the second anchor 313 and does not anchor the boom 32 to the first anchor 311. The second anchor 313 is then lifted by the lifting member 312, so that the boom portion 32 and the construction platform 4 connected to the second anchor 313 are lifted together with the second anchor 313. It is obvious that the lifting distance of the lifting member 312 is limited, so when the construction platform 4 has not yet lifted to the preset height after the lifting member 312 reaches the lifting limit distance, the lifting distance of the lifting member 312 needs to be fallen back, and specifically the falling-back step includes: the jack 312 is self-locked, at this time, the first anchor 311 is anchored to the boom portion 32, then the boom portion 32 is un-anchored to the second anchor 313, and the jack 312 is un-self-locked and falls back to the initial state, so that the falling back of the jack 312 by the lifting distance is completed. And repeating the steps again until the height of the construction platform 4 reaches the preset requirement.

In some embodiments, the boom portion 32 comprises: boom body 321 and distribution beam 41; wherein,,

a boom body 321 for anchoring with said first anchor 311 and/or said second anchor 313; a distribution beam 41 is assembled at one end of the boom body 321, and the distribution beam 41 is used for bearing the construction platform 4.

It will be appreciated that the distribution beam 41 serves to support the construction platform 4 and to bring the construction platform 4 up or down as the boom body 321 is raised or lowered.

In some preferred embodiments, the distributing beam 41 may be selected from the original supporting beam at the bottom of the preliminary construction of the construction platform 4, without the need for additional construction of a new beam to provide lifting force for the construction platform 4.

For more convenient concrete construction, the second anchoring member 313 includes a hanging beam body, and the first anchoring member 311 also includes a hanging beam body, and an end portion of the hanging beam body is used for anchoring or un-anchoring with the hanger rod portion 32. The hanging beam acts like a shoulder pole, providing a fulcrum for the lifting member 312 to rise or fall back.

And the boom body 321 may be anchored to the first anchor 311 or the second anchor 313 by means of a hanging anchor.

Further, as shown in fig. 3, the support assembly 1 includes: a height-connecting bracket 11 and a bailey beam 12; wherein,,

the height-connecting bracket 11 is supported on the ground foundation 2, and a supporting beam 13 is arranged on the height-connecting bracket 11; the bailey beam 12 is supported on the height-connecting bracket 11 through a supporting beam 13, and the bailey beam 12 is arranged below the hanging beam bodies of the first anchoring piece 311 and the second anchoring piece 313.

It should be understood that the height-engaging brackets 11 and the bailey beams 12 are not in direct contact with the work platform 4. The bailey beam 12 is used to support the drive section 31. Wherein the height-receiving bracket 11 is required to be preset according to the lifting or lowering height of the ground foundation 2 and the construction platform 4.

In some preferred embodiments, as shown in fig. 3 and 4, the ground foundation 2 may use a foundation steel casing, the bottom of the height-connecting bracket 11 is provided with a bracket 111, the height-connecting bracket 11 is clamped with the foundation steel casing through the bracket 111, and the bracket 111 and the foundation steel casing may be plugged into a rubber gasket to enable the two to be closely attached.

Further, the bailey beam 12 is provided with upper limiting members 121 at two sides in the width direction, and the upper limiting members 121 are propped against the lower part of the hanging beam body and are used for resisting the deflection of the first anchoring member 311 beyond the bailey beam 12. Similarly, a lower limiting member 122 is disposed at a position corresponding to the support beam 13 of the bailey beam 12.

In another aspect, the present application provides a platform lifting method using the lifting device, which includes the following steps:

constructing a supporting component 1, and installing a lifting component 3 and a construction platform 4 on the supporting component 1;

the driving part 31 of the lifting assembly 3 drives the boom part 32 to axially move so as to enable the construction platform 4 to ascend or descend until the construction platform 4 moves to a preset construction position.

Specifically, the driving part 31 of the lifting assembly 3 drives the boom part 32 to move axially so as to lift the construction platform 4, which comprises the following steps:

a. the boom portion 32 of the lifting unit 3 is anchored to the second anchor 313, and the boom portion 32 is released from the first anchor 311 to be kept in a released state.

b. The lifting member 312 is controlled to lift up the second anchoring member 313, so that the boom portion 32 moves in the axial direction thereof and drives the construction platform 4 to rise.

c. The boom portion 32 is anchored to the first anchor 311, and the boom portion 32 is un-anchored to the second anchor 313.

d. The lift 312 is controlled to fall back to an initial height to cause the second anchor 313 to fall back.

e. Repeating the steps until the construction platform 4 rises to a first preset height.

It should be noted that, in the steps c, d, and e, in order to cope with the situation that the lifting member 312 is lifted up to the limit distance, the construction platform 4 is not lifted up to the first preset height, and the lifting member 312 is allowed to fall back after the system of the boom portion 32 and the first anchoring member 311 is switched over (in this case, the construction platform 4 is anchored to the first anchoring member 311 by the boom portion 32, so the height is unchanged). After the lifting member 312 falls back to the initial position, the boom portion 32 is anchored to the second anchor 313, and the boom portion 32 is not anchored to the first anchor 311, so that the boom portion 32 can be continuously controlled to lift the construction platform 4.

Further, the driving part 31 of the lifting assembly 3 drives the boom part 32 to move axially so as to lower the construction platform 4, which comprises:

s1, anchoring the boom portion 32 with the first anchor 311, and enabling the boom portion 32 to be in a non-anchoring state with the second anchor 313;

s2, after the jacking piece 312 is controlled to be jacked to a limit height, the boom portion 32 is anchored with the second anchoring piece 313;

s3, the suspension rod part 32 is de-anchored with the first anchoring piece 311, and the jacking piece 312 is controlled to fall back to an initial state;

s4, repeating the steps until the construction platform 4 descends to a second preset height

Also, in step S3, if the construction platform 4 reaches the second preset height during the falling of the lifting member 312, the lifting member 312 is self-locked, and the boom portion 32 is kept anchored to both the first anchor 311 and the second anchor 313. However, in the construction, the single lifting distance of the lifting member 312 is limited, and the construction platform 4 is required to conform to the second preset height after repeated for a plurality of times as in the step S4.

In summary, the boom is arranged as the fixing and lifting device of the platform, so that the construction is simpler compared with the conventional construction platform, and the height can be adjusted according to the requirement, so that the repeated dismounting construction is avoided. Further, this application is through the cooperation of jacking piece and anchor assembly and jib, and simple and convenient ingenious realization platform promotes and descends, under the prerequisite that need not use heavy equipment or carry out dismouting once more, just can realize the altitude mixture control of platform, more is fit for the bridge construction in the narrow environment in mountain area.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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.

It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a elevating gear of bridge construction platform which characterized in that includes:

the support assembly (1) is used for being erected on the ground foundation (2);

at least one lifting assembly (3), it includes drive portion (31) and jib portion (32), drive portion (31) set up in on supporting assembly (1), the one end of jib portion (32) is used for linking to each other with construction platform (4), drive portion (31) with jib portion (32) activity links to each other, just drive portion (31) accessible drive jib portion (32) are along its axial displacement, in order to drive construction platform (4) rise or descend.

2. Lifting device according to claim 1, wherein the drive part (31) comprises:

a first anchor (311) that is erected on the support assembly (1), the first anchor (311) being for anchoring or de-anchoring with the boom portion (32);

the jacking piece (312) is placed on the first anchoring piece (311), the jacking piece (312) can stretch and retract in the vertical direction, a second anchoring piece (313) is arranged on the jacking piece (312), the second anchoring piece (313) is used for anchoring or releasing anchoring with the suspender part (32), and the jacking piece (312) enables the second anchoring piece (313) to ascend or fall back through stretching and retracting actions.

3. The lifting device according to claim 2, wherein the boom portion (32) includes:

-a boom body (321) for anchoring with the first anchor (311) and/or the second anchor (313);

and the distribution beam (41) is assembled at one end of the boom main body (321), and the distribution beam (41) is used for bearing the construction platform (4).

4. The lifting device according to claim 2, wherein the second anchor (313) comprises a hanging beam, the end of which is adapted to be anchored or de-anchored to the boom portion (32).

5. Lifting device according to claim 4, wherein the support assembly (1) comprises:

a height-receiving bracket (11) supported by the ground foundation (2);

the bailey beam (12) is erected on the height-connecting support (11), and the bailey beam (12) is arranged below the hanging beam body of the second anchoring piece (313).

6. The lifting device according to claim 5, wherein upper limiting pieces (121) are arranged on two sides of the beret beam (12) in the width direction, and the upper limiting pieces (121) are abutted under the first anchoring pieces (311).

7. Lifting device according to claim 5, characterized in that the elevation support (11) is clamped with the ground foundation (2).

8. A method of lifting a platform using the lifting device of claim 1, comprising the steps of:

a construction supporting component (1), and at least one lifting component (3) and the construction platform (4) are arranged on the supporting component (1);

the driving part (31) of the lifting assembly (3) drives the suspender part (32) to axially move so as to enable the construction platform (4) to ascend or descend until the construction platform (4) moves to a preset construction position.

9. A platform lifting method according to claim 8, wherein the driving of the boom portion (32) by the driving portion (31) of the lifting assembly (3) to move axially to raise the construction platform (4) comprises:

s1, anchoring a boom part (32) of the lifting assembly (3) and a second anchoring part (313) of the driving part (31), and keeping the boom part (32) and a first anchoring part (311) of the driving part (31) in an unbuckled state;

s2, controlling a jacking piece (312) of the driving part (31) to jack the second anchoring piece (313) so as to enable the suspender part (32) to move along the axial direction of the suspender part and drive the construction platform (4) to ascend;

s3, anchoring the boom portion (32) with the first anchor (311), and de-anchoring the boom portion (32) with the second anchor (313);

s4, controlling the jacking piece (312) to fall back to an initial height so that the second anchoring piece (313) falls back together with the jacking piece (312);

s5, repeating the steps S1-S4 until the construction platform (4) rises to a first preset height.

10. A platform lifting method according to claim 9, wherein the driving of the boom portion (32) by the driving portion (31) of the lifting assembly (3) to move axially to lower the construction platform (4) comprises:

A1. -anchoring the boom portion (32) with the first anchor (311) and maintaining the boom portion (32) with the second anchor (313) in an un-anchored state;

A2. -after controlling the jacking member (312) to jack up the second anchor (313) to a limit height, anchoring the boom portion (32) with the second anchor (313);

A3. -de-anchoring the boom portion (32) with the first anchor (311) and controlling the lifting member (312) to fall back to an initial state;

A4. repeating the steps A1-A3 until the construction platform (4) descends to a second preset height.

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