Adjustable prefabricated tower crane foundation supported by spherical steel supports

Abstract

The utility model discloses an adjustable prefabricated tower crane foundation supported by spherical steel supports, and particularly relates to the technical field of steel structure construction, a main body structure column and a ground beam of an original building are utilized, and an adjustable prefabricated assembly used for supporting a tower crane is arranged outside the main body structure column. The steel main beam and the adjustable main beam are matched to form the crossed cross beam, so that complete hinged connection can be formed, local stress generated by the ground beam when the stress end of the section steel is turned can be reduced, and the ground beam can be prefabricated in a factory, is high in assembly degree, high in mounting precision and small in error, and is suitable for large-scale popularization and application. And the working procedures of steel bar binding, concrete pouring and the like and the concrete strength development time can be avoided, so that the construction period is greatly shortened, the construction efficiency is high, and the device is convenient to mount and dismount, can be repeatedly used and can be used for tower cranes of various specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure construction, in particular to an adjustable prefabricated tower crane foundation supported by a spherical steel support. Background Art

[0002] In actual projects, tower crane foundations are widely made of reinforced concrete structures. Due to the large vertical and overturning loads of tower cranes, reinforced concrete foundations are generally large in volume and require a large amount of concrete, resulting in a waste of resources. In addition, the steel bar binding is complex during construction, the concrete strength increases slowly, and the construction period is long, reducing construction efficiency. Traditional tower crane concrete foundations generally require a separate foundation or are set on the structural bottom plate, which has high requirements for location.

[0003] Steel structure assembled tower crane foundation has the advantages of easy installation, environmental protection, fast construction speed, reusability, and significant economic benefits. Steel structure tower crane foundation generally adopts a cross beam structure, which is flexible in location setting. It can be set not only on the bottom plate but also on the ground beam. The steel beam is connected to the ground beam by bolts. After the force is applied, the end of the steel beam will rotate and displace. Local stress will appear in the ground beam, and even cracks may occur in severe cases. When the height of the ground beam is different, such problems will become more obvious. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an adjustable prefabricated tower crane foundation supported by a spherical steel support, and a cross beam is formed by the cooperation of the steel main beam and the adjustable main beam, so that a complete hinged connection can be formed, thereby reducing the local stress generated by the ground beam when the stressed end of the steel section turns. The utility model can be prefabricated in a factory, with a high degree of assembly, high installation accuracy and small error, and can avoid processes such as steel bar binding and concrete pouring and the time for concrete strength development, thereby greatly shortening the construction period and achieving high construction efficiency. It is also convenient to install and disassemble, and can be reused. It can be used for tower cranes of various specifications to solve the problems arising from the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable prefabricated tower crane foundation supported by a spherical steel support, which utilizes the main structural columns and ground beams of the original building, and the outside of the main structural columns is provided with an adjustable prefabricated component for tower crane support;

[0006] The adjustable prefabricated assembly comprises a steel main beam with an H-shaped steel cross section, the two ends of the steel main beam respectively extend to the tops of two adjacent ground beams, both sides of the steel main beam are provided with an adjustable main beam with an H-shaped steel cross section, and a main beam connecting plate is provided on the side where the adjustable main beam and the steel main beam are close to each other, and the adjustable main beam and the steel main beam are fixed together through the main beam connecting plate;

[0007] The bottom of the steel main beam and the adjustable main beam close to the ground beam are both equipped with spherical steel supports connected to the ground beam. The steel main beam and the adjustable main beam cooperate to form a cross beam, thereby forming a complete hinged connection, thereby reducing the local stress generated by the ground beam when the stressed end of the steel section turns.

[0008] In a preferred embodiment, the main beam connecting plate is fixed together with the steel main beam and the adjustable main beam by high-strength bolts, and the main beam connecting plate connects the steel main beam and the adjustable main beam by high-strength bolts, thereby enhancing the connection stability and connection strength of the steel main beam and the adjustable main beam.

[0009] In a preferred embodiment, a connecting beam is provided on one side of the steel main beam close to the adjustable main beam, and main beam diagonal ribs installed on the steel main beam and the adjustable main beam are provided at both ends of the connecting beam respectively. The connecting beam is fixed to the main beam diagonal ribs by high-strength bolts, and the steel main beam and the adjustable main beam are connected by the connecting beam, so as to enhance the connection stability of the steel main beam and the adjustable main beam and avoid out-of-plane distortion and deformation of the steel main beam and the adjustable main beam.

[0010] In a preferred embodiment, two first tower crane leg joints are installed at intervals on the top of the steel main beam, and the first tower crane legs are arranged to facilitate connection and fixation with the tower crane.

[0011] In a preferred embodiment, two second tower crane leg joints are installed on the top of the adjustable main beam. The second tower crane leg joints are arranged to facilitate installation and fixation of the tower crane equipment.

[0012] In a preferred embodiment, adjustable beam connecting plates are installed inside the adjustable main beam at intervals. The arrangement of the adjustable beam connecting plates facilitates connection and fixation with other equipment, or adjustment and installation of the utility model.

[0013] Technical effects and advantages of the utility model:

[0014] By cooperating with the steel main beam and the adjustable main beam to form a cross beam, a complete hinged connection can be formed, thereby reducing the local stress generated by the ground beam when the stressed end of the steel section turns. The utility model can be prefabricated in the factory, with a high degree of assembly, high installation accuracy and small error. It can also avoid processes such as steel bar binding and concrete pouring and the time for concrete strength development, thereby greatly shortening the construction period and achieving high construction efficiency. It is also easy to install and disassemble, can be reused, and can be used for tower cranes of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view of the steel main beam of the utility model;

[0017] Figure 3 For the utility model Figure 2 Enlarged view of part A in the middle;

[0018] Figure 4 This is the front view of the steel main beam of the utility model;

[0019] Figure 5 It is a side view of the adjustable main beam of the utility model.

[0020] The accompanying drawings are marked as follows: 1. main structure column; 2. ground beam; 3. steel main beam; 4. adjustable main beam; 5. main beam connecting plate; 6. spherical steel bearing; 7. connecting beam; 8. main beam diagonal rib; 9. first tower crane leg joint; 10. second tower crane leg joint; 11. adjustable beam connecting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Refer to the instruction manual Figure 1-5 The utility model provides an adjustable prefabricated tower crane foundation supported by a spherical steel support, which utilizes four main structure columns 1 distributed in a rectangular shape and a ground beam 2 between two adjacent main structure columns 1. The main structure columns 1 are provided with an adjustable prefabricated component for tower crane support outside;

[0023] like Figure 1-5 As shown, the adjustable prefabricated component includes a steel main beam 3 with an H-shaped steel cross-section, and both ends of the steel main beam 3 extend to the tops of two adjacent ground beams 2 respectively. Adjustable main beams 4 with an H-shaped steel cross-section are provided on both sides of the steel main beam 3, and a main beam connecting plate 5 is provided on the side where the adjustable main beam 4 and the steel main beam 3 are close to each other, and the adjustable main beam 4 and the steel main beam 3 are fixed together through the main beam connecting plate 5; the bottom of the end of the steel main beam 3 and the adjustable main beam 4 close to the ground beam 2 are both installed with a spherical steel support 6 connected to the ground beam 2, and the main beam connecting plate 5 is fixed to the steel main beam 3 and the adjustable main beam 4 through high-strength bolts, and the main beam connecting plate 5 connects the steel main beam 3 and the adjustable main beam 4 through high-strength bolts, thereby enhancing the connection stability and connection strength of the steel main beam 3 and the adjustable main beam 4.

[0024] Specifically, a cross beam is formed by the cooperation of the steel main beam 3 and the adjustable main beam 4, and the ends of the steel main beam 3 and the adjustable main beam 4 are hingedly connected to the ground beam 2 through four spherical steel supports 6, thereby forming a complete hinged connection, thereby reducing the local stress generated by the ground beam when the stressed end of the steel section turns.

[0025] like Figure 1 and 2 As shown, a connecting beam 7 is provided on the side of the steel main beam 3 close to the adjustable main beam 4, and main beam diagonal ribs 8 installed on the steel main beam 3 and the adjustable main beam 4 are provided at both ends of the connecting beam 7 respectively. The connecting beam 7 is fixed together with the main beam diagonal ribs 8 by high-strength bolts, and the steel main beam 3 and the adjustable main beam 4 are connected by the connecting beam 7, so as to enhance the connection stability of the steel main beam 3 and the adjustable main beam 4 and avoid out-of-plane bending deformation of the steel main beam 3 and the adjustable main beam 4.

[0026] like Figure 1 and 2 As shown, two first tower crane leg joints 9 are installed at intervals on the top of the steel main beam 3. The setting of the first tower crane leg facilitates the connection and fixation with the tower crane. Two second tower crane leg joints 10 are installed on the top of the adjustable main beam 4. The setting of the second tower crane leg joints 10 facilitates the installation and fixation of the tower crane equipment.

[0027] like Figure 2 As shown, the adjustable main beam 4 is internally installed with adjustable beam connecting plates 11 that are spaced apart. The arrangement of the adjustable beam connecting plates 11 facilitates connection and fixation with other equipment, or adjustment and installation of the utility model.

[0028] During construction, the tower crane foundation can be constructed only after the concrete strength of the main structure column 1 and the ground beam 2 reaches the designed strength. The spherical steel support 6 is placed at the predetermined position of the ground beam 2. The length of the steel main beam 3 is calculated according to the designed position, the steel main beam 3 is hoisted and erected on the spherical steel support 6, and the steel main beam 3 is connected to the spherical steel support 6 by high-strength bolts. The length of the adjustable main beam 4 is calculated according to the designed position, and the segments of the adjustable main beam 4 are determined. The segments are connected with the adjustable connecting plate by high-strength bolts. The adjustable main beam 4 is hoisted, and the adjustable beam is connected to the steel main beam 3 by the main beam connecting plate 5 to form a cross beam. The main beam connecting plate 5 is connected by high-strength bolts. The end of the adjustable beam is placed on the spherical steel support 6, and the adjustable main beam 4 is connected to the spherical steel support 6 by high-strength bolts. A connecting beam 7 is hoisted, and the connecting beam 7 is connected to the main beam diagonal rib 8 by high-strength bolts to enhance the integrity of the steel main beam 3 and the adjustable main beam 4. Through measurement and positioning, the tower crane leg joints are placed at the designed position and connected with the steel main beam 3 and the adjustable main beam 4 through high-strength bolts. Then, by adjusting the elevation of the spherical steel support 6, the tower crane foundation is on the same plane, and finally the foundation section and each standard section of the hoisting tower crane foundation can be constructed.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An adjustable prefabricated tower crane foundation supported by a spherical steel support, characterized in that: The main structural column (1) and the ground beam (2) of the original building are utilized, and the main structural column (1) is provided with an adjustable prefabricated component for tower crane support on the outside; The adjustable prefabricated component comprises a steel main beam (3) with an H-shaped steel cross section, the two ends of the steel main beam (3) respectively extending to the tops of two adjacent ground beams (2), the two sides of the steel main beam (3) are provided with an adjustable main beam (4) with an H-shaped steel cross section, and a main beam connecting plate (5) is provided on the side where the adjustable main beam (4) and the steel main beam (3) are close to each other, and the adjustable main beam (4) and the steel main beam (3) are fixed together through the main beam connecting plate (5); The bottom of one end of the steel main beam (3) and the adjustable main beam (4) close to the ground beam (2) is both provided with a spherical steel support (6) connected to the ground beam (2).

2. The adjustable prefabricated tower crane foundation supported by a spherical steel support according to claim 1 is characterized in that: The main beam connecting plate (5) is fixed together with the steel main beam (3) and the adjustable main beam (4) by means of high-strength bolts.

3. The adjustable prefabricated tower crane foundation supported by a spherical steel support according to claim 1 is characterized in that: A connecting beam (7) is provided on one side of the steel main beam (3) close to the adjustable main beam (4), and main beam diagonal ribs (8) installed on the steel main beam (3) and the adjustable main beam (4) are provided at both ends of the connecting beam (7), and the connecting beam (7) is fixed to the main beam diagonal ribs (8) by high-strength bolts.

4. The adjustable prefabricated tower crane foundation supported by a spherical steel support according to claim 1 is characterized in that: Two first tower crane leg joints (9) are installed at intervals on the top of the steel main beam (3).

5. The adjustable prefabricated tower crane foundation supported by a spherical steel support according to claim 1 is characterized in that: Two second tower crane leg joints (10) are installed on the top of the adjustable main beam (4).

6. The adjustable prefabricated tower crane foundation supported by a spherical steel support according to claim 1 is characterized in that: Adjustable beam connecting plates (11) are installed inside the adjustable main beam (4) at intervals.

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