CN218521020U

CN218521020U - Supporting steel beam dismantling platform for climbing of follow-up arm tower crane

Info

Publication number: CN218521020U
Application number: CN202222256895.8U
Authority: CN
Inventors: 冯冶; 李博; 王奠卿; 罗毓莹; 邝楚钊; 韦国豪; 崔喜莹; 温朕博
Original assignee: China Construction Eighth Engineering Division Co Ltd
Current assignee: China Construction Eighth Engineering Division Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-02-24
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses a supporting steel beam dismantling platform for climbing of a trailing arm tower crane, which comprises a platform supporting beam, a platform plate (13), a lifting hook (15), a lifting rope (16), an electric hoist (18) and a lifting lug (19); the platform supporting beam is fixedly arranged at the bottom of the platform plate to form a platform body, and the plurality of lifting hooks are arranged on the platform body at intervals; one end of each of the lifting ropes is connected with the lifting hook, and the other end of each of the lifting ropes is connected with the electric hoists; a plurality of lifting lugs are arranged at the bottom of the movable arm tower crane (3) at intervals, so that a plurality of electric hoists can be arranged at the bottom of the movable arm tower crane through the plurality of lifting lugs; the platform body is hung below the movable arm tower crane through a lifting rope, and the platform body is positioned in the core barrel (4) and below a supporting steel beam required to be detached. The utility model discloses can follow the synchronous promotion of cantilever tower crane to provide a relative confined operation platform for supporting demolising of girder steel in the below of movable arm tower crane, guarantee to support dismantling the operation security of girder steel.

Description

Supporting steel beam dismantling platform for climbing of follow-up arm tower crane

Technical Field

The utility model relates to a construction auxiliary platform especially relates to a platform is demolishd to support girder steel that trailing arm tower crane climbed.

Background

The modern society is highly developed, and the super high-rise building has constantly pulled out the ground, and in the construction process of super high-rise building, the application of swing arm tower crane is very extensive, for example: internal climbing type movable arm tower crane. The internal climbing type movable arm tower crane is attached to and installed on building structures such as a core barrel shear wall through the supporting steel beam, and the supporting steel beam needs to be continuously converted along with climbing of the internal climbing type movable arm tower crane so as to guarantee reliable attachment of the internal climbing type movable arm tower crane at different heights. After the internal climbing type movable arm tower crane climbs upwards, the supporting steel beam is not used any more to demolish below the internal climbing type movable arm tower crane.

Because the mounting height of the supporting steel beam is higher, especially in high-rise and super high-rise buildings, the supporting steel beam is dismantled, which belongs to high-altitude operation, and the construction danger is higher. Because the floor is not under construction to the below of supporting the girder steel, and the swing arm tower crane has climbed upwards, to the operation of demolising of below support girder steel, can't provide effectual work platform and safety protection, lead to supporting dismantling the degree of difficulty of girder steel big. Therefore, it is necessary to provide a dismantling platform for safely dismantling the support steel beam under the boom tower crane during climbing of the boom tower crane.

Disclosure of Invention

An object of the utility model is to provide a platform is demolishd to support girder steel that trailing arm tower crane climbed, can follow the synchronous promotion of trailing arm tower crane to for the demolising of supporting the girder steel provide a relative confined operation platform in the below of swing arm tower crane, guarantee to support dismantling the operation security of girder steel.

The utility model discloses a realize like this:

a supporting steel beam dismantling platform for climbing of a trailing arm tower crane comprises a platform supporting beam, a platform plate, a lifting hook, a lifting rope, an electric hoist and a lifting lug; the platform supporting beam is fixedly arranged at the bottom of the platform plate to form a platform body, and the plurality of lifting hooks are respectively arranged on the platform body at intervals; one end of each of the lifting ropes is connected to the lifting hook, and the other end of each of the lifting ropes is connected to the output end of each of the electric hoists; the bottom of the movable arm tower crane is respectively provided with a plurality of lifting lugs at intervals, so that a plurality of electric hoists can be arranged at the bottom of the movable arm tower crane through the plurality of lifting lugs; the platform body is hung below the movable arm tower crane through a lifting rope, and the platform body is located in the core barrel and located below a supporting steel beam needing to be detached.

The platform supporting beam comprises a platform main beam, a platform secondary beam and a steel beam connecting node; the plurality of platform main beams are vertically connected with the bottoms of the plurality of platform secondary beams, and the lap joints of the platform main beams and the platform secondary beams are fixed through steel beam connecting nodes; the tops of the plurality of platform secondary beams are connected to the bottom of the platform plate at intervals.

The steel beam connecting node comprises a hoop, a hoop connecting plate and a locking nut; the hoops are in an inverted U-shaped structure, and a pair of hoops are respectively arranged on two sides of the platform main beam; the closed end at the top of the hoop is sleeved on the secondary platform beam, and the open end at the bottom of the hoop extends to the lower part of the main platform beam and penetrates through the hoop connecting plate; the hoop connecting plate is positioned below the platform main beam, and the pair of locking nuts are screwed on the bottom opening end of the hoop and tightly push the hoop connecting plate against the bottom surface of the platform main beam.

The width of the platform board is smaller than the inner width of the core barrel, and the length of the platform board is smaller than the inner length of the core barrel, so that a gap is reserved between the platform board and the inner wall of the core barrel.

The inner width of the core tube is x, the width of the platform plate is x-40cm, the inner length of the core tube is y, and the length of the platform plate is y-40cm.

The edge of the platform plate can be connected with a turning plate in a turnover mode, the turning plate is obliquely arranged between the edge top of the platform plate and the inner wall of the core tube, and a gap between the platform plate and the inner wall of the core tube is covered.

The width of the turning plate is larger than the width of a gap between the platform plate and the inner wall of the core tube, so that the inclination angle of the turning plate is 45-60 degrees.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model is provided with the platform body and the turning plate, a relatively closed space can be formed below the supporting steel beam, thereby providing a safe operation space and effective construction protection for the removal of the supporting steel beam and reducing the danger of high-altitude operation; simultaneously, utilize the landing slab butt between turning over board and the core section of thick bamboo inner wall all around can prevent effectively that the platform body from taking place to rock, the stability of platform body when guaranteeing the construction avoids object and personnel to fall to further guaranteed the construction safety nature that the support girder steel demolishd.

2. The utility model discloses owing to be equipped with lifting rope and electric block, can hang the platform body in the below of swing arm tower crane through the lifting rope, the platform body can follow the climbing of arm tower crane and promote in step to cooperation electric block adjusts the platform body all the time the best construction height department under the support girder steel that needs demolishd, thereby be convenient for remove the support girder steel of its below in step in the operation process that climbs of following arm tower crane, construction convenience, safety, high efficiency, be applicable to various high-rise, in the construction operation of superelevation layer.

Drawings

FIG. 1 is a front view of a support steel beam dismantling platform for climbing of a trailing arm tower crane of the utility model;

FIG. 2 is a schematic connection diagram of a steel beam connection node in the support steel beam dismantling platform for climbing of the following arm tower crane of the utility model;

FIG. 3 is a top view of a steel beam connection node in the support steel beam dismantling platform for climbing of the follower arm tower crane of the present invention;

fig. 4 is a top view of the installation of the supporting steel beam dismantling platform for climbing the following arm tower crane of the present invention;

fig. 5 is a sectional view of the installation of the supporting steel beam dismantling platform for climbing the following arm tower crane of the present invention;

fig. 6 is a schematic diagram of the working process of the platform is demolishd to the support steel beam that the follow-up arm tower crane climbed of the utility model.

In the figure, 1 supports the girder steel and demolishs the platform, 11 platform girder, 12 platform secondary beam, 13 landing slab, 14 turn-over boards, 15 lifting hooks, 16 lifting ropes, 17 girder steel connected node, 171 staple bolt, 172 staple bolt connecting plate, 173 lock nut, 18 electric block, 19 lugs, 2 support girder steels, 21 third support girder steels, 22 second support girder steels, 23 first support girder steels, 24 fourth support girder steels, 3 swing arm tower cranes, 4 core section of thick bamboo.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 4 to 6, a supporting steel beam dismantling platform 1 for climbing of a trailing arm tower crane comprises a platform supporting beam, a platform plate 13, a lifting hook 15, a lifting rope 16, an electric hoist 18 and a lifting lug 19; the platform supporting beam is fixedly arranged at the bottom of the platform plate 13 to form a platform body, and a plurality of lifting hooks 15 are respectively arranged on the platform body at intervals; one ends of a plurality of lifting ropes 16 are respectively connected to the lifting hooks 15, and the other ends of the plurality of lifting ropes 16 are respectively connected with the output ends of a plurality of electric hoists 18; a plurality of lifting lugs 19 are respectively arranged at the bottom of the movable arm tower crane 3 at intervals, so that a plurality of electric hoists 18 can be arranged at the bottom of the movable arm tower crane 3 through hooks and the plurality of lifting lugs 19; the platform body is hung below the movable arm tower crane 3 through a lifting rope 16, and the platform body is positioned in the core barrel 4 and below the supporting steel beam 2 required to be detached.

The platform plate 13 is used for providing the construction space of demolising the support girder steel 2, hangs the platform body through the lifting rope 16 and sets up in the below of swing arm tower crane 3, and the platform body can follow the synchronous climbing of swing arm tower crane 3 to demolish the support girder steel 2 of its below at the in-process that swing arm tower crane 3 climbed the construction. For the supporting steel beams at different heights, the lifting ropes 16 can be pulled up and down through the electric hoist 18, the height of the platform body is adjusted, and the platform body is adjusted to the optimal operation height for dismantling the supporting steel beams 2.

Preferably, the lifting rope 16 can be a steel wire rope, and the length of the steel wire rope is set according to the distance between the supporting steel beams 2, so that the platform board 13 can be always hung below the supporting steel beams 2 to be detached. The electric hoist 18 is powered on and pulls the steel wire rope 16 up and down through its output end, which is a routine operation for those skilled in the art and will not be described herein.

Referring to fig. 1 to 5, the platform support beam includes a platform main beam 11, a platform secondary beam 12 and a steel beam connection node 17; the plurality of platform main beams 11 are vertically connected with the bottoms of the plurality of platform secondary beams 12, and the lap joints of the platform main beams 11 and the platform secondary beams 12 are fixed through steel beam connecting nodes 17; the tops of the plurality of platform secondary beams 12 are connected to the bottom of the platform plate 13 at intervals.

The platform main beams 11 and the platform secondary beams 12 can be made of i-steel, and the types, the number and the arrangement intervals of the platform main beams 11 and the platform secondary beams 12 can be calculated and designed according to actual bearing requirements. The platform secondary beam 12 can be fixedly connected with the platform plate 13 by welding and the like, and the platform plate 13 can be made of steel plates.

Referring to fig. 2 and 3, the steel beam connection node 17 includes an anchor ear 171, an anchor ear connection plate 172 and a locking nut 173; the hoops 171 are in an inverted U-shaped structure, and a pair of hoops 171 are respectively arranged on two sides of the platform main beam 11; the closed end at the top of the hoop 171 is sleeved on the secondary platform beam 12, and the open end at the bottom of the hoop 171 extends to the lower part of the main platform beam 11 and penetrates through the hoop connecting plate 172; the hoop attachment plate 172 is located below the platform girder 11, and a pair of locking nuts 173 are screwed onto the bottom open end of the hoop 171 to tightly hold the hoop attachment plate 172 against the bottom surface of the platform girder 11.

Preferably, the hoop 171 may be a U-shaped bolt, and the hoop connection plate 172 closes an opening end of the U-shaped bolt to form a closed loop structure for locking the platform main beam 11 and the platform secondary beam 12, and is screwed and fastened by the locking nut 173 to ensure the connection reliability of the lap joint of the platform main beam 11 and the platform secondary beam 12. The pair of hoops 171 are respectively positioned on two sides of the platform main beam 11, so that the stress of the hoop connecting plate 172 is uniform and stable, and the strength of the joint of the platform main beam 11 and the platform secondary beam 12 is further enhanced.

Referring to fig. 4 and 5, the width of the platform plate 13 is smaller than the inner width of the core tube 4, and the length of the platform plate 13 is smaller than the inner length of the core tube 4, so that a gap is left between the platform plate 13 and the inner wall of the core tube 4, thereby facilitating the integral lifting of the support steel beam dismantling platform 1, and avoiding collision between the support steel beam dismantling platform 1 and the inner wall of the core tube 4 in the climbing process of the trailing arm tower crane 3.

Preferably, the internal width of the core tube 4 is x, the width of the platform plate 13 is x-40cm, the internal length of the core tube 4 is y, and the length of the platform plate 13 is y-40cm, so that the collision between the support steel beam dismantling platform 1 and the inner wall of the core tube 4 can be effectively avoided.

Referring to fig. 4 and 5, a flap 14 is turnably connected to the edge of the platform plate 13, and the flap 14 is obliquely disposed between the top of the edge of the platform plate 13 and the inner wall of the core tube 4 and covers the gap between the platform plate 13 and the inner wall of the core tube 4.

The upper end of the turning plate 14 which is obliquely arranged can be tightly propped against the inner wall of the core tube 4, the gap is covered, so that a relatively closed space is formed around the platform plate 13, and the shaking of the platform plate 13 is limited around by utilizing the friction force between the turning plate 14 and the inner wall of the core tube 4, so that objects and personnel are prevented from falling. Preferably, the turning plate 14 can be rotatably connected with the platform plate 13 by a hinge, so that the turning plate can be flexibly turned, and when the supporting steel beam dismantling platform 1 is lifted, the turning plate 14 is turned onto the platform plate 13, so that the lifting is prevented from being influenced; after the supporting steel beam dismantling platform 1 is lifted in place, the turning plate 14 is turned to be tightly propped against the inner wall of the core tube 4, and gaps around the platform plate 13 are sealed.

Referring to fig. 1 and 5, the width of the turning plate 14 is greater than the width of the gap between the flat plate 13 and the inner wall of the core tube 4, so that the inclination angle of the turning plate 14 is 45 to 60 degrees, the gap between the flat plate 13 and the inner wall of the core tube 4 can be effectively closed by the abutting of the turning plate 14 which is arranged in an inclined manner and the inner wall of the core tube 4, and the safety of the disassembly construction of the support steel beam 2 is improved.

As a preferred embodiment, the movable arm tower crane 3 is formed by sequentially connecting a plurality of standard knots, lifting lugs 19 are welded at four corners of the bottom of the last standard knot of the movable arm tower crane 3, and lifting hooks of four electric hoists 18 are tied with the four lifting lugs 19. The upper ends of four lifting ropes 16 are correspondingly connected to four electric hoists 18 respectively, four lifting hooks 15 are welded on the platform secondary beam 12, the four lifting hooks 15 are located on the outer side below four lifting lugs 19 respectively, the lifting hooks 15 can be located at the joint of the platform secondary beam 12 and the platform main beam 11, and the lower ends of the four lifting ropes 16 are correspondingly fixed on the four lifting hooks 15 respectively, so that a whole drawknot is formed, and the synchronous climbing of the platform body and the trailing arm tower crane 3 is ensured. The four electric hoists 18 are synchronously started and pull the four lifting ropes 16 at constant speed, so that the platform body is ensured to stably ascend in the vertical direction.

Referring to fig. 1 to fig. 6, the working process of the present invention is:

in the construction of high-rise and super high-rise buildings, a movable arm tower crane 3 is adopted for construction, after the movable arm tower crane 3 climbs upwards, the movable arm tower crane 3 is fixed through a third supporting steel beam 21 and a second supporting steel beam 22, a first supporting steel beam 23 at the bottom of the movable arm tower crane 3 needs to be dismantled, and the core barrel 4 needs to be lifted out. The platform body is located the below of first way support girder steel 23, and constructor stands and carries out the work of demolising of first way support girder steel 23 on the landing slab 13.

Along with the construction and climbing of the movable arm tower crane 3, a fourth supporting steel beam 24 is arranged above the third supporting steel beam 21, the movable arm tower crane 3 ascends and is fixed through the third supporting steel beam 21 and the fourth supporting steel beam 24, the second supporting steel beam 22 needs to be dismantled, and the core barrel 4 is hoisted.

Supporting steel beam demolishs 1 follow-up arm tower crane 3 of platform and promotes upwards in step, and the platform body promotes under the second way supporting steel beam 22, and platform body and the board 14 that turns over all around can provide a relatively sealed and safe operation environment for demolising the personnel, and the constructor stands and carries out the work of demolising of second way supporting steel beam 22 on the landing slab 13.

And repeating the process until the construction of the movable arm tower crane 3 is completed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a platform is demolishd to support girder steel that trailing arm tower crane climbed which characterized by: comprises a platform supporting beam, a platform plate (13), a lifting hook (15), a lifting rope (16), an electric hoist (18) and a lifting lug (19); the platform supporting beam is fixedly arranged at the bottom of the platform plate (13) to form a platform body, and a plurality of lifting hooks (15) are respectively arranged on the platform body at intervals; one end of each of the plurality of lifting ropes (16) is connected to the lifting hook (15), and the other end of each of the plurality of lifting ropes (16) is connected to the output end of each of the plurality of electric hoists (18); a plurality of lifting lugs (19) are respectively arranged at the bottom of the movable arm tower crane (3) at intervals, so that a plurality of electric hoists (18) can be arranged at the bottom of the movable arm tower crane (3) through the plurality of lifting lugs (19); the platform body is suspended below the movable arm tower crane (3) through a lifting rope (16), and the platform body is located in the core barrel (4) and located below the supporting steel beam (2) to be detached.

2. The support steel beam dismantling platform for climbing of the follow-up arm tower crane according to claim 1, which is characterized in that: the platform supporting beam comprises a platform main beam (11), a platform secondary beam (12) and a steel beam connecting node (17); the plurality of platform main beams (11) are vertically connected with the bottoms of the plurality of platform secondary beams (12), and the lap joints of the platform main beams (11) and the platform secondary beams (12) are fixed through steel beam connecting nodes (17); the tops of the plurality of platform secondary beams (12) are connected to the bottom of the platform plate (13) at intervals.

3. The support steel beam dismantling platform for climbing of the follow-up arm tower crane according to claim 2, which is characterized in that: the steel beam connecting node (17) comprises a hoop (171), a hoop connecting plate (172) and a locking nut (173); the hoops (171) are of an inverted U-shaped structure, and a pair of hoops (171) are respectively arranged on two sides of the platform main beam (11); the top closed end of the hoop (171) is sleeved on the secondary platform beam (12), and the bottom open end of the hoop (171) extends to the position below the main platform beam (11) and penetrates through the hoop connecting plate (172); the hoop connecting plate (172) is positioned below the platform main beam (11), and a pair of locking nuts (173) are screwed on the bottom opening end of the hoop (171) and tightly push the hoop connecting plate (172) against the bottom surface of the platform main beam (11).

4. The support steel beam dismantling platform for climbing of the follow-up arm tower crane according to claim 1, which is characterized in that: the width of the platform plate (13) is smaller than the inner width of the core barrel (4), and the length of the platform plate (13) is smaller than the inner length of the core barrel (4), so that a gap is reserved between the platform plate (13) and the inner wall of the core barrel (4).

5. The support steel beam dismantling platform for climbing of the follow-up arm tower crane according to claim 4, which is characterized in that: the inner width of the core tube (4) is x, the width of the platform plate (13) is x-40cm, the inner length of the core tube (4) is y, and the length of the platform plate (13) is y-40cm.

6. A support steel beam dismantling platform for climbing a follow-up arm tower crane according to claim 1, 4 or 5, which is characterized in that: the edge of the platform plate (13) can be connected with a turning plate (14) in a turnover mode, the turning plate (14) is obliquely arranged between the top of the edge of the platform plate (13) and the inner wall of the core tube (4) and covers the gap between the platform plate (13) and the inner wall of the core tube (4).

7. The support steel beam dismantling platform for climbing of the follow-up arm tower crane according to claim 6, which is characterized in that: the width of the turning plate (14) is larger than the width of a gap between the platform plate (13) and the inner wall of the core barrel (4), so that the inclination angle of the turning plate (14) is 45-60 degrees.