CN214194623U - Special-shaped tower crane foundation - Google Patents

Abstract

The utility model relates to a dysmorphism tower crane basis belongs to the technical field on tower crane basis, has solved the technical problem of installing the tower crane basis on existing subway upper cover structure, and it is including the base that is used for installing the tower crane, the base includes two frame roof beams, two the frame roof beam sets up respectively on the existing structure girder of two parallels, just frame roof beam intermediate position is located existing structure post top, the frame roof beam with the existing structure girder passes through fixed subassembly fixed connection, and fixed subassembly includes fixed plate and fixed beam, links together fixed plate and fixed beam through connecting bolt to fix the base on the existing structure girder. This application has can be at existing structural installation tower crane basis, and does not produce the effect that influences existing structure, provides safe feasible scheme for follow-up other subway upper cover projects.

Description

Special-shaped tower crane foundation

Technical Field

The application relates to the field of tower crane foundations, in particular to a special-shaped tower crane foundation.

Background

The tower crane foundation is a platform for mounting a tower crane, and the tower crane has a very large dumping moment due to the fact that a heavy object is hung by the suspended suspension arm, so that the tower crane foundation is very important and is a necessary condition for keeping the safe operation of the tower crane.

The existing project is the first project of the upper cover of the subway in China, and an assembly type structure building is constructed on the upper part of the original subway station. The tower crane foundation position has been reserved on original subway upper cover when the construction, nevertheless because the time of shelving is more of a specified duration in second grade development, the structure takes place important change, and original tower crane foundation reservation position has been useless, and does not have the lid region and can utilize, and covers upper region structure roof and only 300mm thick, is not enough to bear the tower crane load, can not place the tower crane foundation at will. Therefore, the inventor considers that how to design the tower crane foundation and not only can ensure the bearing capacity of the tower crane foundation, but also reduce the influence on the original structure is the technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that can guarantee the bearing capacity of tower crane foundation, reduce the influence to the primary structure again, this application provides a dysmorphism tower crane foundation.

The application provides a pair of dysmorphism tower crane basis adopts following technical scheme:

the utility model provides a dysmorphism tower crane foundation, is including the base that is used for installing the tower crane, the base includes two frame roof beams, two the frame roof beam sets up respectively on the existing structure girder of two parallels, just frame roof beam intermediate position is located existing structure post top, the frame roof beam with the existing structure girder passes through multiunit fixed subassembly fixed connection.

By adopting the technical scheme, the frame beam is positioned on the main beam of the existing structure, the middle position of the frame beam in the length direction is positioned above the column of the existing structure, and the pressure of the pressed position of the base is transferred to the main beam of the existing structure and then transferred to the column of the existing structure in the use process of the tower crane; the pull-up force that produces when existing structure girder can also resist the tower crane and use simultaneously because the frame roof beam is located existing structure post top, the pull-up force that existing structure girder received can be undertaken through existing structure post to prevent that existing structure girder from producing big deformation and influencing existing structure safety. The method and the device provide safe and feasible schemes for other subway upper cover projects.

Optionally, the fixing assembly includes a plurality of fixing plates, fixing beams and connecting bolts, the fixing plates are horizontally arranged, the fixing plates are all fixedly connected to the bottom surfaces of the frame beams, and the outer edges of the fixing plates extend out of the side surfaces of the main beams of the existing structure; the fixed beam is positioned at the bottom of the main beam of the existing structure; the fixed beams correspond to the fixed plates one by one and are connected through the connecting bolts.

Through adopting above-mentioned technical scheme, fixed plate, fixed beam and connecting bolt embrace on existing structure girder, be connected the base firm with existing structure girder.

Optionally, a rubber pad is arranged between the fixed beam and the existing structural main beam.

Through adopting above-mentioned technical scheme, the rubber pad has certain elasticity, in the tower crane use, can take place certain deformation, can further prevent that existing structure girder from receiving the destruction.

Optionally, the fixing assembly further comprises a plurality of rib plates arranged on two sides of the frame beam, the rib plates are perpendicular to the side faces of the frame beam, one side of each rib plate is welded to the side face of the frame beam, and the other side of each rib plate is welded to the upper surface of the fixing plate.

Through adopting above-mentioned technical scheme, the fixed subassembly's intensity has been strengthened to the floor, in the tower crane use, avoids the fixed plate to take place to buckle and damage.

Optionally, a plurality of support legs are further fixedly arranged at the bottom of the frame beam, and one side of the rib plate is welded to the side face of the frame beam and the side face of the support leg.

Through adopting above-mentioned technical scheme, the landing leg erects the base, and the protection existing structure girder is not destroyed by the frame roof beam.

Optionally, a connecting plate is fixedly connected between the fixed beam and the fixed plate.

Through adopting above-mentioned technical scheme, the joint strength of fixed plate and fixed beam has been strengthened to the connecting plate, as another kind of connection safeguard measure of fixed plate and fixed beam, acts together with connecting bolt, makes the fixed of base more firm.

Optionally, the base further comprises a plurality of beams arranged in parallel, the beams are fixedly connected between the two frame beams, and the beams are perpendicular to the frame beams.

Through adopting above-mentioned technical scheme, many crossbeams link together the frame roof beam, make the base more firm to provide the platform for the installation tower crane.

Optionally, the base further includes a plurality of secondary beams, and the secondary beams are respectively and fixedly connected between the two adjacent cross beams.

Through adopting above-mentioned technical scheme, many crossbeams are connected into whole with the secondary beam, increase the overall stability of base, improve the intensity of base.

Optionally, the frame beam, the cross beam and the secondary beam enclose a plurality of grids, and diagonal rods are fixedly arranged in the grids respectively and arranged on diagonal lines of the grids.

Through adopting above-mentioned technical scheme, the down tube further improves the wholeness of base, has strengthened the intensity of base.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by positioning the frame beam on the main beam of the existing structure and positioning the middle position of the frame beam in the length direction above the column of the existing structure, the pressure of the pressed position of the base is transmitted to the main beam of the existing structure and then transmitted to the column of the existing structure in the use process of the tower crane; the pull-up force that produces when existing structure girder can also resist the tower crane and use simultaneously because the frame roof beam is located existing structure post top, the pull-up force that existing structure girder received can be undertaken through existing structure post to prevent that existing structure girder from producing big deformation and influencing existing structure safety. The method provides a safe and feasible scheme for other subway upper cover projects;

2. the base can be stably fixed on the main beam of the existing structure through the fixing plate, the fixing beam and the connecting bolt in the fixing assembly.

Drawings

Fig. 1 is a schematic perspective view of the present application.

Fig. 2 is an enlarged view of a in fig. 1.

Description of reference numerals: 1. a base; 11. a frame beam; 12. a cross beam; 13. a secondary beam; 14. grid; 15. a diagonal bar; 16. mounting a plate; 17. a support leg; 2. a fixing assembly; 21. a fixing plate; 22. a fixed beam; 23. a connecting bolt; 24. a connecting plate; 25. a rubber pad; 26. a rib plate; 3. the existing structure main beam; 4. there are existing structural columns.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses dysmorphism tower crane basis. Referring to fig. 1, a special-shaped tower crane foundation includes base 1 and is used for being fixed in base 1 the fixed subassembly 2 on existing structure girder 3.

Base 1 includes two frame roof beams 11, two frame roof beams 11 parallel arrangement each other, two frame roof beams 11 set up on two existing structure girder 3 that are parallel to each other, and the intermediate position of frame roof beam 11 is located existing structure post 4 top, two frame roof beams 11 play the effect of mainly bearing tower crane pressure, and conduct pressure on existing structure girder 3, finally conduct on existing structure post 4, thereby make the special-shaped tower crane basis can the stable stay tower crane.

The base 1 further comprises a plurality of cross beams 12, the number of the cross beams 12 is four, the four cross beams 12 are uniformly spaced and fixedly connected between the two frame beams 11, and the four cross beams 12 are all perpendicular to the frame beams 11; the secondary beam 13 is fixedly connected between two adjacent cross beams 12, two secondary beams 13 are arranged between two adjacent cross beams 12, and the cross beams 12 are equally divided into three sections by the two secondary beams 13.

Frame roof beam 11, crossbeam 12 and secondary beam 13 enclose into nine squares 14, have set firmly down tube 15 in the square 14 respectively, and down tube 15 sets up the diagonal position at square 14, and many down tubes 15 have strengthened base 1's wholeness along 11 length direction of parallel frame roof beam and perpendicular to 11 length direction of frame roof beam angle setting respectively, and base 1's bearing capacity can be improved to down tube 15.

The four corners of the square 14 at the center are respectively and fixedly provided with an installation plate 16, the installation plate 16 provides a platform for installing the tower crane, and four support legs of the tower crane are respectively welded with the four installation plates 16.

Referring to fig. 1 and 2, the fixing assembly 2 includes a plurality of fixing plates 21, the fixing plates 21 are welded to the bottom surfaces of the frame beams 11, the fixing plates 21 are horizontally disposed, both ends of the fixing plates 21 protrude from both sides of the existing structural girder 3, a plurality of fixing beams 22 are disposed on the bottom surface of the existing structural girder 3, the positions of the fixing beams 22 and the fixing plates 21 correspond to each other one by one, first bolt holes are formed at both ends of the fixing plates 21 protruding from the existing structural girder 3, second bolt holes corresponding to the first bolt holes are formed in the fixing beams 22, connecting bolts 23 are inserted into the first bolt holes and the second bolt holes, the fixing plates 21 and the fixing beams 22 are fixedly connected, so that the base 1 is fixed to the existing structural girder 3, connecting plates 24 are further disposed on both sides of the connecting bolts 23, one ends of the connecting plates 24 are welded to the bottom surfaces of the fixing plates 21, and the other ends are welded to the top surfaces of the fixing beams 22, the connecting plate 24 enhances the connecting strength of the fixing plate 21 and the fixing beam 22, so that the base 1 is more stably fixed.

Be provided with multiunit floor 26 in frame roof beam 11 both sides, every group is provided with three floor 26, and floor 26 is perpendicular to the setting of frame roof beam 11 side, and floor 26 can be right angled triangle, and a right-angle side and the welding of frame roof beam 11 side of floor 26, another right-angle side and fixed plate 21 upper surface welding, and floor 26 has strengthened the intensity of fixed subassembly 2, makes the base 1 whole more firm.

Further, be provided with rubber pad 25 between fixed beam 22 and existing structure girder 3 bottom surface, rubber pad 25 has certain elasticity, in the tower crane use, can take place certain deformation, prevents that existing structure girder 3 bottom surface from receiving destruction.

Referring to fig. 1 and 2, further, a leg 17 is fixed on the bottom surface of the frame beam 11, the leg 17 is a rectangular box, the leg 17 is arranged between the frame beam 11 and the fixing plate 21, and one side of the rib 26 is welded to the side surfaces of the frame beam 11 and the leg 17; the support legs 17 support the frame beams 11, and protect the main beams 3 of the existing structure from being damaged.

The implementation principle of a special-shaped tower crane foundation in the embodiment of the application is as follows: firstly, arranging a mounting hole for mounting a fixed component on an existing structural floor slab, then placing a base 1 on an existing structural top plate to enable a frame beam 11 to be positioned on an existing structural main beam 3, and the middle position of the frame beam 11 in the length direction to be positioned above an existing structural column 4, then the base 1 is fixed on the main beam 3 of the existing structure through the fixing component 2, the connecting bolt 23 and the connecting plate 24 are penetrated, and is connected with a fixing beam 22 provided on the bottom surface of the existing structural main beam 3, thereby fixing the base 1 to the existing structural main beam 3, then filling foamed concrete into the mounting holes, filling the mounting holes to install the tower crane in the center of the base 1, transmitting the pressure of the tower crane to the girder 3 of the existing structure through the base 1, then conduct on existing structure post 4, existing structure girder 3 and existing structure post 4 bear base 1 jointly to can provide firm mounting platform for the tower crane on existing building.

This subway upper cover project can satisfy the atress of tower crane and can satisfy the dual requirement of the existing structure of protection in order to solve the design installation, select the scheme in this application after multiple scheme contrast. By combining the size and the stress characteristic of the tower crane foundation, the multi-dimensional requirements of utilizing the existing structure and not causing damage to the existing structure are fully considered, and finally the design structure and the connection mode of the existing beam column node and the base are ingeniously utilized, so that the problem of the project is solved. Meanwhile, the arrangement of the rib plates 26 and the connecting plates 24 is to find the stress weak points after the model is established for multiple times of calculation, and the adopted reinforcing scheme is economical and convenient to construct; the scheme of packing into the foaming concrete in the mounting hole can utilize the foaming concrete less to connecting bolt's constraint, when satisfying the tower crane use that can be better, connecting bolt's deformation requirement to the protection existing structure girder 3 does not receive destruction with existing structure floor. The scheme provides a safe and feasible scheme and mature design and installation experience for other subway upper cover projects in the follow-up process, and has great economic and social benefits.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a dysmorphism tower crane basis which characterized in that: including base (1) that is used for installing the tower crane, base (1) includes two frame roof beams (11), two frame roof beam (11) set up respectively on existing structure girder (3) of two parallels, just frame roof beam (11) intermediate position is located existing structure post (4) top, frame roof beam (11) with existing structure girder (3) are through multiunit fixed subassembly (2) fixed connection.

2. The special-shaped tower crane foundation of claim 1, wherein: the fixing assembly (2) comprises a plurality of fixing plates (21), fixing beams (22) and connecting bolts (23), wherein the fixing plates (21) are horizontally arranged, the fixing beams (22) are fixedly connected to the bottom surfaces of the frame beams (11), and the outer edges of the fixing plates (21) extend out of the side surfaces of the main beams (3) of the existing structure; the fixed beam (22) is positioned at the bottom of the existing structural main beam (3); the fixing beams (22) correspond to the fixing plates (21) in position one by one and are connected through the connecting bolts (23).

3. The special-shaped tower crane foundation of claim 2, wherein: and a rubber pad (25) is arranged between the fixed beam (22) and the existing structural main beam (3).

4. The special-shaped tower crane foundation of claim 2, wherein: the fixed component (2) further comprises a plurality of rib plates (26) arranged on two sides of the frame beam (11), the rib plates (26) are perpendicular to the side face of the frame beam (11), one side of each rib plate (26) is welded with the side face of the frame beam (11), and the other side of each rib plate is welded with the upper surface of the fixing plate (21).

5. The special-shaped tower crane foundation of claim 4, wherein: a plurality of supporting legs (17) are fixedly arranged at the bottom of the frame beam (11), and one side of the rib plate (26) is welded with the side face of the frame beam (11) and the side face of each supporting leg (17).

6. The special-shaped tower crane foundation of claim 2, wherein: and a connecting plate (24) is fixedly connected between the fixed beam (22) and the fixed plate (21).

7. The special-shaped tower crane foundation of claim 1, wherein: base (1) still includes many mutual parallel arrangement's crossbeam (12), many crossbeam (12) fixed connection is two between frame roof beam (11), just crossbeam (12) perpendicular to frame roof beam (11).

8. The special-shaped tower crane foundation of claim 7, wherein: the base (1) further comprises a plurality of secondary beams (13), and the secondary beams (13) are respectively and fixedly connected between the two adjacent cross beams (12).

9. The special-shaped tower crane foundation of claim 8, wherein: the frame beam (11), the cross beam (12) and the secondary beam (13) enclose a plurality of grids (14), inclined rods (15) are fixedly arranged in the grids (14) respectively, and the inclined rods (15) are arranged on diagonal lines of the grids (14).

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