Common foundation for tower crane conversion

Abstract

The utility model relates to a common foundation for tower crane conversion, and relates to the technical field of building construction.The common foundation for tower crane conversion comprises an embedded section used for being embedded in a foundation pit, a plurality of first ground feet and a plurality of second ground feet are arranged at the top of the embedded section, the first ground feet are used for being connected with a heavy tower crane, and the second ground feet are used for being connected with a light tower crane; the first ground feet are arranged in a surrounding mode, the second ground feet are arranged on the inner sides of the first ground feet in a surrounding mode, and a connecting piece used for being connected with a foundation pit is arranged at the bottom of the embedded section. According to the common foundation, different tower cranes can be converted, installation of the tower cranes of different specifications can be met at the same time, in the construction process, the tower cranes can be connected with the first ground foot or the second ground foot according to actual construction requirements, and therefore replacement of the different tower cranes in different construction stages is achieved through the common foundation; while the manufacturing cost of the tower crane foundation is reduced, the construction quality is improved, and the safety risk is reduced.

Description

Technical Field

[0001] The present application relates to the field of building construction technology, and in particular to a common foundation for tower crane conversion. Background Art

[0002] The structural form of large-scale sports stadiums and exhibition halls is generally: the main structure adopts a reinforced concrete frame structure, and the partial structure adopts a rigid structure; the roof structure adopts steel trusses, grids and other steel structures. When organizing the construction of such large-scale venues, the selection of lifting and hoisting equipment is particularly important. Different lifting and hoisting equipment needs to be selected at different construction stages to fully present the overall technical solution.

[0003] In actual operations, QTZ615 type tower crane is mostly used in the main structure construction phase. QTZ615 type tower crane has a smaller lifting weight and is a light tower crane. Taking 80-meter arm length as an example, the maximum lifting weight of QTZ615 type tower crane is about 26 tons, and the end lifting weight is about 3.5 tons. It is mainly suitable for reinforced concrete structure construction and the lifting of small H-shaped steel structure components such as steel rods and steel beams of rigid structures; QTZ1800 type tower crane is mostly used in the roof steel structure construction phase. QTZ1800 type tower crane has a larger lifting weight and is a heavy tower crane. Taking 80-meter arm length as an example, the maximum lifting weight of QTZ1800 type tower crane is about 64 tons, and the end lifting weight is about 18 tons. It can be used for lifting larger steel structure components.

[0004] In order to achieve the replacement of different tower cranes at different construction stages, two independent tower crane embedded sections and foundations need to be prepared on site. On the one hand, this leads to an increase in economic costs. The production of two embedded sections and foundations requires more materials such as steel bars and concrete. On the other hand, in order to install two tower cranes at different positions, the construction site has to reserve more openings, which will lead to reduced construction quality and increased safety risks. Utility Model Content

[0005] In order to improve the problem in the prior art that in order to achieve the replacement of different tower cranes at different construction stages, it is necessary to prepare embedded sections and foundations of two independent tower cranes, the present application provides a common foundation for tower crane conversion.

[0006] The common foundation for tower crane conversion provided in this application adopts the following technical solution:

[0007] A common foundation for tower crane conversion includes a pre-buried section for being buried in a foundation pit, a plurality of first anchors and a plurality of second anchors are arranged on the top of the pre-buried section, the first anchor is used to connect with a heavy tower crane, the second anchor is used to connect with a light tower crane, a plurality of the first anchors are arranged in a surrounding manner, a plurality of the second anchors are arranged in a surrounding manner on the inner side of the plurality of the first anchors, and a connecting piece for connecting with the foundation pit is arranged at the bottom of the pre-buried section.

[0008] By adopting the above technical scheme, when the common foundation is used, the embedded section is connected to the foundation pit through the connecting piece, thereby the embedded section is installed in the foundation pit, and then concrete is poured into the foundation pit, thereby the embedded section is buried in the foundation pit. At this time, the anchors 1 and 2 at the bottom of the embedded section are exposed to the ground and are used to connect with the tower crane; after the concrete poured in the foundation pit solidifies and takes shape, the anchors 1 and 2 are fixed, and multiple anchors 1 are arranged around and located on the outside of multiple anchors 2. The anchors 1 can be used to connect with heavy tower cranes, and multiple anchors 2 can be used to connect with light tower cranes, thereby making the common foundation available for conversion of different tower cranes, which can simultaneously meet the installation of tower cranes of different specifications. During the construction process, the tower crane can be connected to the anchor 1 or the anchor 2 according to actual construction needs, so that different tower cranes can be replaced at different construction stages through a common foundation, while reducing the production cost of the tower crane foundation, improving the construction quality and reducing safety risks.

[0009] Optionally, the embedded section includes a plurality of support rods, each of which is provided with a first anchor, the plurality of support rods are arranged in a surrounding manner, a connecting rod is provided between two adjacent support rods, and each of the connecting rods is provided with a second anchor.

[0010] By adopting the above technical solution, the support rods and the connecting rods are used to support the anchors one and two, and the support rods and the connecting rods cooperate to form the basic frame of the embedded section. The embedded section as a whole is composed of a frame structure, which can reduce the dead weight of the embedded section, improve the convenience of transporting the embedded section, facilitate transporting the embedded section to the construction site, and facilitate installing the embedded section in the foundation pit.

[0011] Optionally, a reinforcing rod is further arranged between two adjacent support rods.

[0012] By adopting the above technical solution, by arranging a reinforcing rod between two adjacent supporting rods, the tightness of the connection between the supporting rods can be improved, thereby improving the overall strength of the embedded node.

[0013] Optionally, the support rod, the connecting rod and the reinforcing rod are all selected to be H-shaped steel structures.

[0014] By adopting the above technical solution, the support rods, connecting rods and reinforcing rods are made of H-shaped steel commonly used in construction projects, which are simple to manufacture and low in cost.

[0015] Optionally, a plurality of bolts are provided on the support rod along the length and width directions.

[0016] By adopting the above technical solution, after the embedded section is installed in the foundation pit, concrete needs to be poured into the foundation pit, thereby fixing the embedded section and burying it in the foundation pit, and the bolts can be used to enhance the bonding ability between the support rod and the concrete, thereby improving the stability of the embedded section when it is located in the foundation pit.

[0017] Optionally, a support plate is provided at the bottom of the embedded section, the connecting member includes a plurality of connecting bolts threadedly connected to the support plate, a horse stool is provided in the foundation pit, a plurality of first threaded holes are opened on the horse stool, and the first threaded holes correspond to the connecting bolts and can be threadedly connected to the connecting bolts.

[0018] By adopting the above technical scheme, when the embedded section is installed in the foundation pit, a horse stool is installed in the foundation pit in advance, and the horse stool can be fixed by the cushion layer to control the horizontality of the horse stool. After that, the embedded section is placed in the foundation pit, the connecting bolt is docked with the corresponding first threaded hole, and the connecting bolt is rotated to screw the connecting bolt into the first threaded hole, thereby fixing the support plate on the horse stool, and then installing and fixing the embedded section in the foundation pit. The connection method is simple, flexible and easy to operate. In addition, in the process of screwing the connecting bolt to realize the installation of the embedded section, the embedded section can also be aligned by rotating the connecting bolt, thereby controlling the verticality of the embedded section.

[0019] Optionally, ventilation holes are provided on the support plate.

[0020] By adopting the above technical solution, the density of the concrete filled under the support plate is improved through the air holes, thereby avoiding affecting the bearing capacity of the common foundation.

[0021] Optionally, the first anchor and / or the second anchor comprises a mounting plate, a first connecting seat is vertically arranged on the mounting plate, a pin hole is opened on the first connecting seat, and a reinforcing plate is arranged between the first connecting seat and the mounting plate.

[0022] By adopting the above technical solution, the pin hole is used for the pin shaft to pass through. When connecting the tower crane with the first anchor and / or the second anchor, the hole processed on the tower crane is connected to the pin hole, and then the pin shaft is passed through the hole and the pin hole at the same time, thereby completing the connection between the tower crane and the corresponding anchor. The connection method is simple, convenient and easy to operate, thereby improving the convenience of the construction project; the reinforcement plate between the first connecting seat and the mounting plate can improve the tightness of the connection between the two, thereby improving the stability of the first connecting seat when it is installed.

[0023] Optionally, the first connecting seat includes a connecting plate, the pin hole is opened on the connecting plate, supporting plates are fixed on both sides of the connecting plate, the top of the supporting plate is abutted against the tower crane, and the reinforcing plate is arranged between the supporting plate and the mounting plate.

[0024] By adopting the above technical solution, when connecting the first connecting seat with the corresponding tower crane, the bottom end of the tower crane is abutted against the supporting plate. At this time, the holes processed on the tower crane are connected with the pin holes on the connecting plate, and the pin shaft is passed through the holes and the pin holes at the same time, thereby completing the connection of the tower crane. The cooperation between the supporting plate and the connecting plate can improve the stability of the connection between the tower crane and the corresponding anchor.

[0025] Optionally, the first anchor and / or the second anchor includes a second connecting seat, and a second threaded hole is formed on the second connecting seat.

[0026] By adopting the above technical solution, the second threaded hole is used for threaded connection with the bolt. When connecting with the corresponding tower crane through the second connecting seat, the threaded hole processed on the tower crane is connected with the second threaded hole, and the bolt is passed through the threaded hole on the tower crane and the second threaded hole at the same time. The connection between the tower crane and the corresponding anchor is completed by threaded connection. The connection method is simple, convenient and has high stability.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The common foundation can be used for conversion of different tower cranes, which can simultaneously meet the installation of tower cranes of different specifications. During the construction process, the tower crane can be connected to the first or second anchor according to the actual construction needs, so that different tower cranes can be replaced at different construction stages through a common foundation, which can reduce the production cost of the tower crane foundation, improve the construction quality and reduce safety risks;

[0029] 2. The support rod and the connecting rod are used to support the first and second anchors. The support rod and the connecting rod cooperate to form the basic frame of the embedded section. The embedded section as a whole is composed of a frame structure, which can reduce the deadweight of the embedded section, improve the convenience of the embedded section during transportation, facilitate the transportation of the embedded section to the construction site, and facilitate the installation of the embedded section in the foundation pit;

[0030] 3. When installing the embedded section in the foundation pit, install a horse stool in the foundation pit in advance. After that, place the embedded section in the foundation pit, connect the connecting bolts with the corresponding first threaded holes, rotate the connecting bolts to screw the connecting bolts into the first threaded holes, thereby fixing the support plate on the horse stool, and then installing and fixing the embedded section in the foundation pit. The connection method is simple, flexible and easy to operate. In addition, in the process of screwing the connecting bolts to install the embedded section, the embedded section can also be aligned by rotating the connecting bolts, thereby controlling the verticality of the embedded section. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a common foundation that can be used for tower crane conversion in an embodiment of the present application;

[0032] Figure 2 is a top view of an embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of the connection between the embodiment of the present application and the QTZ615 type tower crane selected in the embodiment of the present application;

[0034] Figure 4 It is a schematic diagram of a horse stool in an embodiment of the present application;

[0035] Figure 5 yes Figure 3 A magnified view of part A;

[0036] Figure 6 It is a structural schematic diagram of the QTZ1800 tower crane selected in the embodiment of the present application.

[0037] Explanation of the reference numerals in the accompanying drawings: 1. Embedded section; 2. Anchor one; 3. Anchor two; 4. Support rod; 5. Connecting rod; 6. Reinforcing rod; 7. Bolt; 8. Support plate; 9. Connecting bolt; 10. Horse stool; 11. Air vent; 12. Mounting plate; 13. Connecting plate; 14. Support plate; 15. Pin hole; 16. Reinforcing plate; 17. Second connecting seat; 18. Reinforcement rod; 19. Support foot; 20. Bending section; 21. Pad layer; 22. Bottom steel bar. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-6 This application is described in further detail.

[0039] The present application embodiment discloses a common foundation for tower crane conversion. Figure 1 and Figure 2 The common foundation for tower crane conversion includes a pre-buried section 1 for being buried in a foundation pit, a plurality of anchors 2 and a plurality of anchors 2 3 are arranged on the top of the pre-buried section 1, the anchor 1 2 is used to connect with a heavy tower crane, the anchor 2 3 is used to connect with a light tower crane, the plurality of anchors 1 2 are arranged around, the plurality of anchors 2 3 are arranged around the inner side of the plurality of anchors 1 2, and a connector for connecting with the foundation pit is arranged at the bottom of the pre-buried section 1.

[0040] Reference Figure 1 and Figure 3The embedded section 1 includes a plurality of support rods 4, each of which is provided with a ground foot 2, and the plurality of support rods 4 are arranged in a surrounding manner, and a reinforcing rod 6 is provided between two adjacent support rods 4; a connecting rod 5 is provided between two adjacent support rods 4, and the end of the connecting rod 5 is fixed to the top of the support rod 4, and each connecting rod 5 is provided with a ground foot 2 3.

[0041] Reference Figure 1 and Figure 3 A plurality of reinforcing rods 18 are staggeredly arranged on the connecting rod 5, some of the reinforcing rods 18 are fixed to the connecting rod 5 and the second anchor 3 at the same time, and another part of the reinforcing rods 18 are fixed to the support rod 4 and the second anchor 3 at the same time. The reinforcing rods 18 are used to improve the tightness of the connection between the second anchor 3 and the connecting rod 5 and the support rod 4, thereby improving the stability of the second anchor 3 when it is located on the embedded node 1.

[0042] Reference Figure 1 and Figure 3 The support rod 4, the connecting rod 5, the reinforcing rod 6 and the reinforcement rod 18 are all selected to be H-shaped steel structures, which are simple to manufacture and low in cost.

[0043] Reference Figure 1 and Figure 3 A plurality of bolts 7 are arranged on the support rod 4 along the length and width directions. After the embedded section 1 is installed in the foundation pit, concrete needs to be poured into the foundation pit to fix the embedded section 1 and bury it in the foundation pit. The bolts 7 are used to enhance the bonding ability between the support rod 4 and the concrete, thereby improving the stability of the embedded section 1 when it is located in the foundation pit.

[0044] Reference Figure 1 and Figure 4 A support plate 8 is fixed at the bottom of the support rod 4, and the connecting piece includes a plurality of connecting bolts 9 threadedly connected to the support plate 8. A horse stool 10 is arranged in the foundation pit, and a plurality of first threaded holes are opened on the horse stool 10. The first threaded holes correspond to the connecting bolts 9 and can be threadedly connected to the connecting bolts 9.

[0045] When installing the embedded section 1 in the foundation pit, a horse stool 10 is installed in the foundation pit in advance. After that, the embedded section 1 is placed in the foundation pit, the connecting bolt 9 is connected with the corresponding first threaded hole, and the connecting bolt 9 is rotated to screw the connecting bolt 9 into the first threaded hole, thereby fixing the support plate 8 on the horse stool 10, and then installing and fixing the embedded section 1 in the foundation pit; and in the process of rotating the connecting bolt 9 to connect the support rod 4, the embedded section 1 can also be aligned, and then the verticality of the embedded section 1 can be controlled.

[0046] In the embodiment of the present application, a plurality of legs 19 are fixed at the bottom of the horse stool 10, and the ends of the plurality of legs 19 away from the horse stool 10 have horizontal bent sections 20. When the horse stool 10 is installed in a foundation pit, the bent sections 20 of the legs 19 are fitted into the foundation pit, and the horizontality of the horse stool 10 is checked to ensure that the horse stool 10 is in a horizontal state. Then, concrete is poured at the legs 19 to form a cushion layer 21. There is space between the cushion layer 21 and the horse stool 10. After the concrete of the cushion layer 21 solidifies, the bottom layer of steel bars 22 connected to the legs 19 are tied between the cushion layer 21 and the horse stool 10.

[0047] Reference Figure 1 and Figure 3 In the embodiment of the present application, air holes 11 are also provided on the support plate 8, and the air holes 11 are used to improve the density of the concrete filled under the support plate 8 to avoid affecting the bearing capacity of the common foundation.

[0048] Reference Figure 1 and Figure 3 The anchor 2 includes a mounting plate 12, which is fixed to the top of the support rod 4. A connecting plate 13 is vertically fixed on the mounting plate 12, and a pin hole 15 is opened on the connecting plate 13. Support plates 14 are attached to both sides of the connecting plate 13. The bottom of the supporting plate 14 is fixed to the connecting plate 13, and the top is used to abut against the tower crane; when the first connecting seat is connected to the corresponding tower crane, the bottom end of the tower crane is abutted against the supporting plate 14. At this time, the holes processed on the tower crane are connected with the pin holes 15 on the connecting plate 13, and the pin shaft is passed through the hole and the pin hole 15 at the same time, thereby completing the connection of the tower crane. The cooperation between the supporting plate 14 and the connecting plate 13 can improve the stability of the connection between the tower crane and the corresponding anchor.

[0049] Reference Figure 3 and Figure 5 The anchor 2 3 includes a second connecting seat 17, and a second connecting hole is opened on the second connecting seat 17. The second threaded hole is used for threaded connection with a bolt. When connecting with the corresponding tower crane through the second connecting seat 17, the threaded hole processed on the tower crane is connected with the second threaded hole, and the bolt is passed through the threaded hole on the tower crane and the second threaded hole at the same time, and the connection between the tower crane and the corresponding anchor is completed by threaded connection.

[0050] In the embodiment of the present application, in order to improve the overall strength of the common foundation, the top of the support rod 4 is connected to the mounting plate 12 by welding, the bottom is connected to the support plate 8 by welding, the two ends of the connecting rod 5 are connected to the two support rods 4 by welding, the second anchor 3 is welded and fixed to the connecting rod 5, and the second anchor 3, the connecting rod 5, the support rod 4 and the reinforcement rod 18 are also fixedly connected by welding.

[0051] In the embodiment of the present application, according to the structure of most tower cranes used at the construction site, the number of anchors 2 and anchors 3 is set to four, and the connecting lines between the four anchors 2 form a rectangular frame; in other embodiments, the number and specific structure of anchors 2 and anchors 3 can be adjusted for suitability of the tower cranes actually under construction.

[0052] In the embodiment of the present application, the structures of the foot 1 2 and the foot 2 3 are designed with reference to the QTZ615 tower crane and QTZ1800 tower crane required for construction. Figure 3 The standard section size of QTZ615 tower crane is 2300×2300×6000mm (length×width×height), which can be installed on the common foundation through anchor 23; refer to Figure 6 The standard section size of QTZ1800 tower crane is 3200×3200×6000mm (length×width×height), which can be installed on a common foundation through anchor 1 2; in other embodiments, the specific structure of anchor 1 2 and anchor 2 3 can be designed according to the tower crane selected in the actual construction, and the structure of anchor 1 2 and anchor 2 3 can be the same or different; in other embodiments, the required pin holes 15 or threaded holes can be processed on the corresponding tower crane according to the structure of anchor 1 2 and anchor 2 3, so that the tower crane can establish a connection with the corresponding anchor.

[0053] In the embodiment of the present application, the common foundation is installed in the foundation pit. After the installation of the common foundation is completed, C35 concrete needs to be poured into the foundation pit, thereby burying the common foundation underground. At this time, anchor 1 2 and anchor 2 3 are exposed to the ground. After the common foundation is installed in the foundation pit, steel bars need to be provided on the common foundation according to factors such as the tower crane model and foundation conditions to improve the stability of the common foundation when it is located in the foundation pit.

[0054] The implementation principle of a common foundation for tower crane conversion in the embodiment of the present application is as follows: when the common foundation is used, the embedded section 1 is connected to the foundation pit by a connecting piece, thereby installing the embedded section 1 in the foundation pit, and then pouring concrete into the foundation pit, thereby burying the embedded section 1 in the foundation pit. At this time, the foot 1 2 and the foot 2 3 at the bottom of the embedded section 1 are exposed to the ground and connected to the tower crane; after the concrete poured in the foundation pit solidifies and takes shape, the foot 1 2 and the foot 2 3 are fixed, and multiple foot 1s 2 are arranged around and located at multiple On the outside of anchor 2 3, anchor 1 2 can be used to connect to a heavy tower crane, while multiple anchors 2 3 can be used to connect to a light tower crane, so that the common foundation can be used for conversion of different tower cranes, which can simultaneously meet the installation of tower cranes of different specifications. During the construction process, the tower crane can be connected to anchor 1 2 or anchor 2 3 according to actual construction needs, so that different tower cranes can be replaced at different construction stages through a common foundation, which can reduce the production cost of the tower crane foundation, improve construction quality and reduce safety risks.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A common foundation for tower crane conversion, characterized by: The invention comprises a pre-buried section (1) for being buried in a foundation pit, wherein a plurality of first anchors (2) and a plurality of second anchors (3) are arranged on the top of the pre-buried section (1), wherein the first anchor (2) is used to be connected to a heavy tower crane, and the second anchor (3) is used to be connected to a light tower crane, wherein the plurality of first anchors (2) are arranged in a surrounding manner, and the plurality of second anchors (3) are arranged in a surrounding manner on the inner side of the plurality of first anchors (2), and a connecting piece for connecting to the foundation pit is arranged at the bottom of the pre-buried section (1).

2. A common foundation for tower crane conversion according to claim 1, characterized in that: The embedded section (1) comprises a plurality of support rods (4), each of which is provided with a first anchor (2), the plurality of support rods (4) are arranged in a surrounding manner, a connecting rod (5) is provided between two adjacent support rods (4), and each of which is provided with a second anchor (3).

3. A common foundation for tower crane conversion according to claim 2, characterized in that: A reinforcing rod (6) is also provided between two adjacent support rods (4).

4. The common foundation for tower crane conversion according to claim 3 is characterized in that: The support rod (4), the connecting rod (5) and the reinforcing rod (6) are all selected to be H-shaped steel structures.

5. The common foundation for tower crane conversion according to claim 2, characterized in that: The support rod (4) is provided with a plurality of bolts (7) along the length and width directions.

6. The common foundation for tower crane conversion according to claim 1, characterized in that: A support plate (8) is provided at the bottom of the embedded section (1), and the connecting member includes a plurality of connecting bolts (9) threadedly connected to the support plate (8). A horse stool (10) is provided in the foundation pit, and a plurality of first threaded holes are opened on the horse stool (10), and the first threaded holes correspond to the connecting bolts (9) and can be threadedly connected to the connecting bolts (9).

7. The common foundation for tower crane conversion according to claim 6, characterized in that: The support plate (8) is provided with a ventilation hole (11).

8. The common foundation for tower crane conversion according to claim 1, characterized in that: The first anchor (2) and / or the second anchor (3) comprises a mounting plate (12), a first connecting seat is vertically arranged on the mounting plate (12), a pin hole (15) is provided on the first connecting seat, and a reinforcing plate (16) is arranged between the first connecting seat and the mounting plate (12).

9. The common foundation for tower crane conversion according to claim 8, characterized in that: The first connecting seat comprises a connecting plate (13), the pin hole (15) is opened on the connecting plate (13), supporting plates (14) are fixed on both sides of the connecting plate (13), the top of the supporting plate (14) is in contact with the tower crane, and the reinforcing plate (16) is arranged between the supporting plate (14) and the mounting plate (12).

10. The common foundation for tower crane conversion according to claim 1, characterized in that: The first foot (2) and / or the second foot (3) comprises a second connecting seat (17), and the second connecting seat (17) is provided with a second threaded hole.

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