CN215562554U - Tower crane foundation structure - Google Patents
Tower crane foundation structure Download PDFInfo
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- CN215562554U CN215562554U CN202122056121.6U CN202122056121U CN215562554U CN 215562554 U CN215562554 U CN 215562554U CN 202122056121 U CN202122056121 U CN 202122056121U CN 215562554 U CN215562554 U CN 215562554U
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Abstract
The utility model belongs to the technical field of the technique of construction and specifically relates to a tower crane foundation structure is related to, including the bored concrete pile, be provided with the reinforcing bar cylinder mould in the bored concrete pile, the reinforcing bar cylinder mould includes longitudinal reinforcement and first circular stirrup, longitudinal reinforcement is provided with many, first circular stirrup sets up at the lateral wall of longitudinal reinforcement along the length direction interval of longitudinal reinforcement has many, the fixed second circular stirrup that is provided with of horizontal direction is followed to the inside wall of longitudinal reinforcement, the second circular stirrup is provided with a plurality ofly along the length direction interval of longitudinal reinforcement, the fixed spiral hoop that is provided with of length direction along longitudinal reinforcement in the reinforcing bar cylinder mould, the inside wall fixed connection of spiral hoop and vertical reinforcement, the fixed back up coat that is provided with between the lateral wall of bored concrete pile and the reinforcing bar cylinder mould. The spiral hoops and the second circular stirrups are arranged inside the steel reinforcement net cage, so that the stability of the steel reinforcement net cage is improved; the reinforcing layer can improve the stability of bored concrete pile to improve tower crane foundation structure's stability.
Description
Technical Field
The application relates to the technical field of building construction, in particular to a tower crane foundation structure.
Background
The tower crane is the most common hoisting equipment in the construction site, also known as tower crane, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction.
At present, when a worker installs a tower crane foundation, the worker firstly digs a cast-in-place pile on the ground, then places a steel reinforcement mesh cage in the cast-in-place pile, and then pours concrete in the cast-in-place pile.
In view of the above-mentioned related art, the inventors found that the following drawbacks exist: the height of the building is higher, and workers can only deepen the depth of the cast-in-place pile or enlarge the size of the cast-in-place pile so as to meet the stability of the tower crane foundation, and the stability of the tower crane foundation structure is poor.
SUMMERY OF THE UTILITY MODEL
In order to improve tower crane foundation structure's stability, this application provides a tower crane foundation structure.
The application provides a tower crane foundation structure adopts following technical scheme:
the utility model provides a tower crane foundation structure, includes the bored concrete pile, be provided with the steel reinforcement cylinder mould in the bored concrete pile, the steel reinforcement cylinder mould includes longitudinal reinforcement and first circular stirrup, longitudinal reinforcement is provided with many along the circumference interval of first circular stirrup, first circular stirrup sets up there are many at the lateral wall of longitudinal reinforcement along the length direction interval of longitudinal reinforcement, the fixed second circular stirrup that is provided with of horizontal direction is followed to the inside wall of longitudinal reinforcement, the second circular stirrup is provided with a plurality ofly along the length direction interval of longitudinal reinforcement, the fixed spiral hoop that is provided with of length direction along longitudinal reinforcement in the steel reinforcement cylinder mould, the inside wall fixed connection of spiral hoop and longitudinal reinforcement, the fixed back up coat that is provided with between the lateral wall of bored concrete pile and the steel reinforcement cylinder mould.
By adopting the technical scheme, the spiral hoop and the second circular hoop are arranged inside the steel reinforcement net cage, and when the steel reinforcement net cage deforms inwards, the spiral hoop and the second circular hoop can effectively block the internal deformation of the steel reinforcement net cage, so that the stability of the steel reinforcement net cage is improved; be provided with the back up coat between bored concrete pile and reinforcing bar cylinder mould, the back up coat can improve bored concrete pile's stability to improve tower crane foundation structure's stability.
Optionally, vertical reinforcing steel bars and a third circular stirrup are arranged in the reinforcing layer along the vertical direction, the vertical reinforcing steel bars are arranged at intervals along the circumferential direction of the reinforcing layer, and the third circular stirrup is arranged on the inner side wall of the vertical reinforcing steel bars along the vertical direction at intervals.
Through adopting above-mentioned technical scheme, vertical reinforcing bar and third circular stirrup can improve the stability of back up coat to improve tower crane foundation structure's stability.
Optionally, the reinforcing layer is provided with a plurality of along vertical direction, and each one side of the lateral wall of the bored concrete pile is kept away from to the reinforcing layer is provided with the inclined plane, the opening at the top of reinforcing layer is less than the opening at the bottom of reinforcing layer, the roof of reinforcing layer has seted up the fixed slot, the bottom joint of reinforcing layer is to the diapire of the fixed slot of the adjacent reinforcing layer downwards along vertical direction.
Through adopting above-mentioned technical scheme, in the fixed slot at the top of the adjacent back up coat of mutual butt and the bottom butt of back up coat of vertical direction, improve the stability of back up coat to improve tower crane foundation structure's stability.
Optionally, the roof of bored concrete pile is provided with the base station along the circumference annular of back up coat, the base station internal fixation is provided with the closed stirrup, the one end of closed stirrup extends and wears to establish in the back up coat that is located the top to the direction of back up coat, be provided with a plurality of fourth circular stirrups in the base station, the inside wall fixed connection of fourth circular stirrups and closed stirrup.
Through adopting above-mentioned technical scheme, set up the base station at the roof of the back up coat at top to set up closed stirrup and fourth circular stirrup in the base station, and closed stirrup is close to the one end of back up coat and wears to establish in the back up coat at top, has improved tower crane foundation structure's stability.
Optionally, a second reinforcement stirrup is fixedly arranged on the top wall of the first circular stirrup, the second reinforcement stirrup comprises a first bending section steel bar, a second bending section steel bar and a third bending section steel bar, the first bending section steel bar, the second bending section steel bar and the third bending section steel bar are connected with each other, and joints of the first bending section steel bar and the second bending section steel bar and the first bending section steel bar and the third bending section steel bar are respectively abutted to the outer edges of the vertical steel bars.
Through adopting above-mentioned technical scheme, enclose into a triangle-shaped between first bending segment reinforcing bar, second bending segment reinforcing bar and the third bending segment reinforcing bar, can effectively hinder reinforcing bar cylinder mould to warp to inside, improve reinforcing bar cylinder mould's stability to improve tower crane foundation structure's stability.
Optionally, a cushion layer is fixedly arranged on the bottom wall of the cast-in-place pile.
Through adopting above-mentioned technical scheme, the bottom that the bed course can effectively avoid bored concrete pile takes place to subside, effectively improves bored concrete pile's stability to improve tower crane foundation structure's stability.
Optionally, a steel casing is fixedly arranged between the side wall of the cast-in-place pile and the steel mesh cage.
Through adopting above-mentioned technical scheme, when the lateral wall soil of bored concrete pile is loose or there is the drift sand, adopt the steel to protect a section of thick bamboo and can effectively prevent the cliff collapse or the loss accident, improve tower crane foundation structure's security.
Optionally, the steel reinforcement cylinder mould is provided with a plurality ofly along vertical direction, the top of vertical reinforcing bar is fixed and is provided with the steel reinforcement sleeve that is used for connecting the adjacent vertical reinforcing bar that makes progress along vertical direction.
Through adopting above-mentioned technical scheme, when the degree of depth of bored concrete pile is darker, can adopt the mode of a plurality of steel reinforcement cylinder moulds concatenations to install, adjacent steel reinforcement cylinder mould is fixed through the steel reinforcement sleeve, with the top fixed mounting steel reinforcement sleeve of vertical reinforcing bar, the bottom of the vertical reinforcing bar of the adjacent steel reinforcement cylinder mould that makes progress along vertical direction and steel reinforcement sleeve's other end threaded connection, and fixed adjacent steel reinforcement cylinder mould is firm.
In summary, the present application includes at least one of the following beneficial technical effects:
the spiral hoop and the second circular hoop are arranged inside the steel bar net cage, and when the steel bar net cage deforms inwards, the spiral hoop and the second circular hoop can effectively block the internal deformation of the steel bar net cage, so that the stability of the steel bar net cage is improved; a reinforcing layer is arranged between the cast-in-place pile and the steel reinforcement mesh cage, and the reinforcing layer can improve the stability of the cast-in-place pile, so that the stability of the tower crane foundation structure is improved;
when the soil on the side wall of the cast-in-place pile is loose or quicksand exists, the steel pile casing can effectively prevent the collapse or loss accident of the soil wall, and the safety of the tower crane foundation structure is improved;
when the degree of depth of bored concrete pile is darker, can adopt the mode of a plurality of steel reinforcement cylinder mould concatenations to install, adjacent steel reinforcement cylinder mould is fixed through the steel reinforcement sleeve, with the top fixed mounting steel reinforcement sleeve of vertical reinforcing bar, the bottom of the vertical reinforcing bar of the adjacent steel reinforcement cylinder mould that makes progress along vertical direction and steel reinforcement sleeve's other end threaded connection, and fixed adjacent steel reinforcement cylinder mould is firm.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.
Fig. 2 is a partial sectional view of embodiment 1 of the present application.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a top view of a reinforcement cage of embodiment 1 of the present application.
Fig. 5 is a partially enlarged schematic view of a portion B in fig. 2.
Fig. 6 is a schematic view of the overall structure of embodiment 2 of the present application.
Fig. 7 is a schematic view of a connection structure of two adjacent longitudinal steel bars according to embodiment 3 of the present application.
Description of reference numerals: 1. filling piles; 2. a steel bar net cage; 21. longitudinal reinforcing steel bars; 22. a first circular stirrup; 3. a second circular stirrup; 4. a spiral hoop; 5. a reinforcement layer; 51. an inclined surface; 52. fixing grooves; 53. vertical reinforcing steel bars; 54. a third circular stirrup; 6. a second reinforcement stirrup; 61. a first bend section steel bar; 62. a second bend section steel bar; 63. a third bend section steel bar; 7. a base station; 71. closing the stirrups; 72. a fourth circular stirrup; 8. a cushion layer; 9. a steel casing; 10. and (4) a steel bar sleeve.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses tower crane foundation structure.
Example 1;
referring to fig. 1 and 2, the tower crane foundation structure comprises a cast-in-place pile 1, a steel reinforcement cage 2 is installed in the cast-in-place pile 1, a reinforcing layer 5 is installed between the cast-in-place pile 1 and the steel reinforcement cage 2, and a base station 7 is arranged on the reinforcing layer 5 located at the topmost portion.
Referring to fig. 3 and 4, the reinforcement cage 2 includes longitudinal reinforcements 21 and a first circular stirrup 22, and in this embodiment, the longitudinal reinforcements 21 and the first circular stirrup 22 both use HRB400 reinforcements. First circular stirrup 22 is that a reinforcing bar is buckled for the confined annular, and many are installed along the circumference interval of first circular stirrup 22 to longitudinal reinforcement 21, and in this embodiment, twenty three are installed to longitudinal reinforcement 21, and every longitudinal reinforcement 21 welds on the inside wall of first circular stirrup 22 along the circumference interval of first circular stirrup 22. A plurality of first round stirrups 22 are welded at intervals along the length direction of the longitudinal steel bars 21.
Referring to fig. 3 and 4, the second circular stirrup 3 is welded to the inner side wall of the longitudinal steel bar 21 along the horizontal direction, and in this embodiment, the second circular stirrup 3 is a closed annular steel bar formed by bending an HRB400 steel bar. The second circular stirrup 3 is fixedly arranged on the inner side wall of the longitudinal steel bar 21, and a plurality of second circular stirrups 3 are arranged at intervals along the length direction of the longitudinal steel bar 21. The second circular stirrup 3 effectively improves the shear strength of the steel bar net cage 2, and improves the stability of the steel bar net cage 2.
Referring to fig. 2 and 3, a spiral hoop 4 is welded in the reinforcement cage 2 along the length direction of the longitudinal reinforcement 21, and the spiral hoop 4 is a single hoop bent into a continuous shape. The spiral hoop 4 is welded on the inner side wall of the longitudinal steel bar 21 along the vertical direction, and the contact point of the spiral hoop 4 and the second circular stirrup 3 is welded. The spiral hoop 4 effectively avoids the transverse expansion deformation of concrete under the axial pressure when the reinforcement cage 2 is poured, and effectively improves the compressive strength, the bearing capacity and the anti-damage capacity of the reinforcement cage 2.
When steel reinforcement cylinder mould 2 takes place to warp to inside at the in-process of pouring concrete or at the in-process that supports the tower crane, spiral hoop 4 and the circular stirrup of second 3 can effectively hinder steel reinforcement cylinder mould 2's inside to warp, improve steel reinforcement cylinder mould 2's stability to improve tower crane foundation structure's stability.
Referring to fig. 3 and 4, the welding has the second to strengthen stirrup 6 on the roof of first circular stirrup 22, second is strengthened stirrup 6 and is included first bending section reinforcing bar 61, second bending section reinforcing bar 62 and third bending section reinforcing bar 63, second is strengthened stirrup 6 and is adopted HRB400 reinforcing bar to buckle into a triangle-shaped, and interconnect between first bending section reinforcing bar 61, second bending section reinforcing bar 62 and the third bending section reinforcing bar 63, the junction of first bending section reinforcing bar 61 and second bending section reinforcing bar 62 and first bending section reinforcing bar 61 and third bending section reinforcing bar 63 respectively with the outward flange butt of vertical reinforcing bar 53. Enclose into a triangle-shaped between first bending segment reinforcing bar 61, second bending segment reinforcing bar 62 and the third bending segment reinforcing bar 63, can effectively hinder reinforcing bar cylinder mould 2 to inside warp, improve reinforcing bar cylinder mould 2's stability to improve tower crane foundation structure's stability.
The reinforcement cage 2, the second circular stirrup 3, the spiral stirrup 4 and the second reinforcement stirrup 6 are integrally formed by pouring C30 concrete.
Referring to fig. 2, in the present embodiment, a plurality of reinforcing layers 5 are provided in the vertical direction, and two adjacent reinforcing layers 5 abut against each other. The side of each reinforcing layer 5 facing away from the side wall of the cast-in-place pile 1 is provided with an inclined surface 51 so that the opening at the top of the reinforcing layer 5 is smaller than the opening at the bottom of the reinforcing layer 5. The top wall of each reinforcing layer 5 is formed with fixing grooves 52, and the bottom of the reinforcing layer 5 is snapped to the bottom wall of the fixing groove 52 of the vertically downward adjacent reinforcing layer 5. In order to improve the stability of back up coat 5, install vertical reinforcement 53 and third circular stirrup 54 along vertical direction in the back up coat 5, vertical reinforcement 53 installs many along back up coat 5's circumference interval, in this embodiment, eighteen are installed to vertical reinforcement 53, third circular stirrup 54 is a HRB400 reinforcing bar and buckles to a confined annular reinforcing bar, third circular stirrup 54 has many along vertical direction interval welding on vertical reinforcement 53's inside wall. The reinforcing layer 5 is formed by pouring C30 concrete, the vertical steel bars 53 and the third circular stirrups 54 integrally. Installation vertical reinforcing bar 53 and third circular stirrup 54 can improve the stability of back up coat 5 in back up coat 5, and the outward flange butt of the concrete of back up coat 5's inclined plane 51 and the pouring of reinforcing bar cylinder mould 2 can improve the stability of back up coat 5, and adjacent back up coat 5 passes through the mutual butt of the mode of fixed slot 52 joint, further improves the stability of back up coat 5, to sum up, can improve tower crane foundation structure's stability.
Referring to fig. 2 and 5, the top wall of the cast-in-place pile 1 is annularly provided with a base platform 7 along the circumferential direction of the reinforcing layer 5, a closed stirrup 71 is arranged in the base platform 7, one end of the closed stirrup 71, which is close to the reinforcing layer 5, extends in the direction of the reinforcing layer 5 and penetrates through the reinforcing layer 5 at the topmost part, a plurality of fourth circular stirrups 72 are arranged in the base platform 7, and the fourth circular stirrups 72 are welded with the inner side wall of the closed stirrup 71. In this embodiment, the closed stirrup 71 is made of an HRB400 steel bar, and the steel bar is bent into a structure shaped like "Jiong" with the opening of the steel bar facing downward. One end that closed stirrup 71 is close to reinforced layer 5 extends to reinforced layer 5 to wear to establish in reinforced layer 5, fourth circular stirrup 72 buckles an HRB400 reinforcing bar for closed annular structure, and four circular stirrup 72 installs two along the horizontal direction interval, installs three along vertical direction interval, and the outward flange of every fourth circular stirrup 72 and the inside wall welding of closed stirrup 71. The base 7 is integrally cast with the closed stirrup 71 and the fourth circular stirrup 72 by using C30 concrete. Set up base station 7 at the roof of the back up coat 5 at topmost to set up closed stirrup 71 and third in base station 7 and strengthen the stirrup, and the one end of closed stirrup 71 is worn to establish in the back up coat 5 at topmost, has improved tower crane foundation structure's stability.
Referring to fig. 2, a bottom wall of cast-in-place pile 1 is provided with a cushion layer 8. Cushion 8 can adopt cement mortar, marble, granite, plastics cushion and fine stone concrete cushion, and in this embodiment, cushion 8 adopts fine stone concrete cushion, and the staff piles up fine stone concrete cushion on the diapire of bored concrete pile 1, and 2 butt of reinforcing bar cylinder mould are at the roof of fine stone concrete cushion. The bed course 8 can effectively avoid the bottom of bored concrete pile 1 to take place to subside, effectively improves bored concrete pile 1's stability to improve tower crane foundation structure's stability.
The implementation principle of the embodiment 1 of the application is as follows: the spiral hoop 4 and the second circular hoop 3 are arranged inside the steel reinforcement net cage 2, and when the steel reinforcement net cage 2 deforms inwards, the spiral hoop 4 and the second circular hoop 3 can effectively block the internal deformation of the steel reinforcement net cage 2, so that the stability of the steel reinforcement net cage 2 is improved; be provided with back up coat 5 between bored concrete pile 1 and reinforcing bar cylinder mould 2, back up coat 5 can improve bored concrete pile 1's stability to improve tower crane foundation structure's stability.
Example 2;
referring to fig. 6, the present embodiment 2 is different from embodiment 1 in that a steel casing 9 is fixedly disposed between a side wall of a cast-in-place pile 1 and a reinforcement cage 2.
When soil on the side wall of the cast-in-place pile 1 is loose or quicksand exists to cause unstable soil quality, a steel pile casing 9 is arranged between the side wall of the cast-in-place pile 1 and the steel reinforcement cage 2, and the outer side wall of the steel pile casing 9 is abutted to the side wall of the cast-in-place pile 1. The steel protects a section of thick bamboo 9 for the pipeline of steel matter, and a steel protects a section of thick bamboo 9 can stabilize the pore wall, prevents the hole that collapses, can also keep apart surface water. Adopt steel to protect a section of thick bamboo 9 between bored concrete pile 1's lateral wall and reinforcing bar cylinder mould 2 can effectively prevent the embankment or the loss accident, improve tower crane foundation structure's security.
Example 3;
referring to fig. 7, the difference between this embodiment 3 and embodiment 1 is that a plurality of reinforcement cages 2 are arranged in the vertical direction, and adjacent reinforcement cages 2 are fixedly connected by reinforcement sleeves 10.
A plurality of reinforcing steel bar net cages 2 are installed along the vertical direction, and a reinforcing steel bar sleeve 10 used for connecting the vertical reinforcing steel bars 21 adjacent to each other along the vertical direction is fixedly arranged at the top of the vertical reinforcing steel bar 21 of each reinforcing steel bar net cage 2. When bored concrete pile 1's the degree of depth is darker, can adopt the mode of the 2 concatenations of a plurality of reinforcing bar cylinder moulds to install, the staff is with reinforcing bar sleeve 10 threaded connection at the top of the vertical reinforcing bar 21 of a reinforcing bar cylinder mould 2, thereby it fixes reinforcing bar sleeve 10 on vertical reinforcing bar 21 to be located the one end of reinforcing bar sleeve 10 and reinforcing bar sleeve 10 welding or bonding, then 21 threaded connection of the vertical reinforcing bar 21 of the ascending reinforcing bar cylinder mould 2 of vertical direction in reinforcing bar sleeve 10, can fix adjacent reinforcing bar cylinder mould 2, fixed adjacent reinforcing bar cylinder mould 2 stabilizes.
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 (8)
1. A tower crane foundation structure is characterized in that: comprises a cast-in-place pile (1), a steel reinforcement cage (2) is arranged in the cast-in-place pile (1), the steel reinforcement cage (2) comprises longitudinal steel bars (21) and first circular stirrups (22), the longitudinal steel bars (21) are provided with a plurality of steel reinforcement cages along the circumferential interval of the first circular stirrups (22), the first circular stirrups (22) are provided with a plurality of steel reinforcement cages along the length direction interval of the longitudinal steel bars (21) at the outer side wall of the longitudinal steel bars (21), the inner side wall of the longitudinal steel bars (21) is fixedly provided with second circular stirrups (3) along the horizontal direction, the second circular stirrups (3) are provided with a plurality of steel reinforcement cages along the length direction interval of the longitudinal steel bars (21), spiral hoops (4) are fixedly arranged in the steel reinforcement cage (2) along the length direction of the longitudinal steel bars (21), and the spiral hoops (4) are fixedly connected with the inner side wall of the longitudinal steel bars (21), and a reinforcing layer (5) is fixedly arranged between the side wall of the cast-in-place pile (1) and the steel reinforcement net cage (2).
2. The tower crane foundation structure of claim 1, wherein: the reinforced layer (5) is provided with a plurality of along vertical direction, and every one side that the lateral wall of bored concrete pile (1) was kept away from in reinforced layer (5) is provided with inclined plane (51), the opening at the top of reinforced layer (5) is less than the opening of the bottom of reinforced layer (5), fixed slot (52) have been seted up to the roof of reinforced layer (5), the bottom joint of reinforced layer (5) is to the diapire of fixed slot (52) of the downward adjacent reinforced layer (5) of edge vertical direction.
3. The tower crane foundation structure of claim 2, wherein: vertical reinforcing bar (53) and third circular stirrup (54) are arranged in reinforcing layer (5) along the vertical direction, vertical reinforcing bar (53) are provided with many along the circumference interval of reinforcing layer (5), third circular stirrup (54) have many along vertical direction interval setting on the inside wall of vertical reinforcing bar (53).
4. The tower crane foundation structure of claim 2, wherein: the fixed second reinforcement stirrup (6) that is provided with on the roof of first circular stirrup (22), second reinforcement stirrup (6) include first bending section reinforcing bar (61), second bending section reinforcing bar (62) and third bending section reinforcing bar (63), interconnect between first bending section reinforcing bar (61), second bending section reinforcing bar (62) and third bending section reinforcing bar (63), the junction of first bending section reinforcing bar (61) and second bending section reinforcing bar (62) and first bending section reinforcing bar (61) and third bending section reinforcing bar (63) respectively with the outward flange butt of vertical reinforcing bar (53).
5. The tower crane foundation structure of claim 1, wherein: the top wall of bored concrete pile (1) is provided with base station (7) along the circumference annular of back up coat (5), base station (7) internal fixation is provided with closed stirrup (71), the one end that closed stirrup (71) are close to back up coat (5) extends and wears to establish in back up coat (5) that are located the top to the direction of back up coat (5), be provided with a plurality of fourth circular stirrup (72) in base station (7), the inside wall fixed connection of fourth circular stirrup (72) and closed stirrup (71).
6. The tower crane foundation structure of claim 1, wherein: and a cushion layer (8) is fixedly arranged on the bottom wall of the cast-in-place pile (1).
7. The tower crane foundation structure of claim 1, wherein: and a steel pile casing (9) is fixedly arranged between the side wall of the cast-in-place pile (1) and the steel reinforcement cage (2).
8. The tower crane foundation structure of claim 1, wherein: the steel bar net cage (2) is provided with a plurality of steel bar net cages along the vertical direction, and the top of the longitudinal steel bar (21) is fixedly provided with a steel bar sleeve (10) used for connecting the vertical steel bar (21) adjacent to each other along the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122056121.6U CN215562554U (en) | 2021-08-28 | 2021-08-28 | Tower crane foundation structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122056121.6U CN215562554U (en) | 2021-08-28 | 2021-08-28 | Tower crane foundation structure |
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| Publication Number | Publication Date |
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| CN215562554U true CN215562554U (en) | 2022-01-18 |
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| CN202122056121.6U Active CN215562554U (en) | 2021-08-28 | 2021-08-28 | Tower crane foundation structure |
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- 2021-08-28 CN CN202122056121.6U patent/CN215562554U/en active Active
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