Tower crane foundation

Abstract

The utility model discloses a tower crane foundation which comprises a section steel foundation, two concrete balancing weights arranged on the section steel foundation and a prestress applying component arranged at the bottom of the section steel foundation, the profile steel foundation comprises two first-layer profile steel foundations formed by splicing a plurality of sections of steel beams and two second-layer profile steel foundations formed by splicing a plurality of sections of steel beams, the two second-layer profile steel foundations are parallel to each other, and the two ends of each second-layer profile steel foundation are perpendicularly fixed to the two first-layer profile steel foundations which are parallel to each other respectively. According to the tower crane foundation, a stable infrastructure is provided for a tower crane in the mode that the profile steel foundation and the concrete balancing weights are combined, the profile steel foundation is formed by splicing multiple sections of profile steel, the profile steel foundation can be assembled and used at any time, construction personnel can assemble or disassemble the profile steel foundation conveniently, the profile steel and the concrete balancing weights can be completely recycled and reused, and the construction cost is reduced. And the construction cost is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a tower crane foundation. Background Art

[0002] Tower cranes are common large-scale equipment found on construction sites and play a vital role in building construction. The foundation of a tower crane is a critical facility for ensuring its stable and safe operation. In previous projects, tower crane foundations often used concrete foundations or high-pile foundations. These types of foundations require waiting for the concrete strength to reach the required level before the crane can be installed, resulting in a long construction period. Furthermore, concrete foundations are temporary installations and require chiseling away for permanent use, which is time-consuming and labor-intensive. Some construction cases also use steel sections as tower crane foundations, but conventional steel section foundations require pre-embedded steel plate parts, which are then welded to the steel sections. After the tower crane is dismantled, the steel sections need to be cut into sections for recycling, making them difficult to reuse.

[0003] In view of the shortcomings of the prior art, such as the long construction period of tower crane foundations and the inability to recycle foundation materials, those skilled in the art have been looking for solutions. Utility Model Content

[0004] The utility model aims to provide a tower crane foundation to solve the problems that the tower crane foundation has a long construction period and the foundation materials cannot be recycled.

[0005] In order to solve the above technical problems, the utility model provides a tower crane foundation, which includes: a steel foundation, two concrete counterweights arranged on the steel foundation, and a prestressed stress applying component arranged at the bottom of the steel foundation, wherein the steel foundation includes: two first-layer steel foundations formed by splicing multiple sections of steel beams and two second-layer steel foundations formed by splicing multiple sections of steel beams, the two second-layer steel foundations are parallel to each other, and the two ends of each second-layer steel foundation are respectively vertically fixed to the two parallel first-layer steel foundations; the two concrete counterweights are parallel to each other, and the two ends of each concrete counterweight are respectively vertically fixed to the two parallel first-layer steel foundations; the prestressed stress applying component is arranged at the bottom of the second-layer steel foundation.

[0006] Optionally, in the tower crane foundation, each concrete counterweight block includes: a main body, a plurality of embedded lifting ears arranged on the main body, and a plurality of limiting holes opened at both ends of the main body.

[0007] Optionally, in the tower crane foundation, each first-layer steel foundation includes: a steel beam B and two steel beams A spliced ​​to the two ends of the steel beam B respectively.

[0008] Optionally, in the tower crane foundation, the steel beam A includes: a box-section steel beam, a number of limit rods, two steel pads, a flange and a number of stiffening plates, all of the limit rods are vertically arranged on the top panel of the box-section steel beam, and the size and number of the limit rods are adapted to the limit holes of a concrete counterweight block; the two steel pads are both arranged on the bottom panel of the box-section steel beam; the flange is arranged at one end of the box-section steel beam; a number of stiffening plates are arranged between the flange and the box-section steel beam; the steel beam A is fixed to the limit holes of the concrete counterweight block based on the limit rods, so as to realize vertical fixation of the steel beam A and the concrete counterweight block.

[0009] Optionally, in the tower crane foundation, the steel beam B includes: a box-section steel beam, a number of screws, two flanges and a number of stiffening plates, all of which are vertically arranged on the top panel of the box-section steel beam; two flanges are respectively arranged at the two ends of the box-section steel beam; a number of stiffening plates are arranged between the flanges and the box-section steel beam; the flanges at both ends of the steel beam B and the flanges of the steel beam A are matched with bolts and nuts to realize the splicing of the steel beam B and the steel beam A at both ends.

[0010] Optionally, in the tower crane foundation, each second-layer steel foundation includes: a steel beam b and two steel beams a spliced ​​to the two ends of the steel beam b respectively, and the prestressing component is arranged at the bottom of the steel beam b.

[0011] Optionally, in the tower crane foundation, the steel beam a includes: a box-section steel beam, a connecting plate, a flange and several stiffening plates, the connecting plate is arranged on the bottom panel of the box-section steel beam, and the connecting plate extending beyond the box-section steel beam is provided with several through holes adapted to the screws of the steel beam B; the flange is arranged at one end of the box-section steel beam; several stiffening plates are arranged between the flange and the box-section steel beam; the steel beam a is connected to the screws of the steel beam B based on the through holes on the connecting plate and is fixed by nuts to achieve vertical fixation of the steel beam a and the steel beam B.

[0012] Optionally, in the tower crane foundation, the steel beam b includes: a box-section steel beam, two tower crane anchor feet, a flange plate and a number of stiffening plates, and the two tower crane anchor feet are both arranged on the top panel of the box-section steel beam; the flange plate is arranged at one end of the box-section steel beam; and a number of stiffening plates are arranged between the flange plate and the box-section steel beam.

[0013] Optionally, in the tower crane foundation, the prestressing component is a jack.

[0014] The tower crane foundation provided by the present invention comprises: a steel foundation, two concrete counterweights arranged on the steel foundation, and a prestressed stress member arranged at the bottom of the steel foundation, wherein the steel foundation comprises: two first-layer steel foundations formed by splicing multiple steel beams and two second-layer steel foundations formed by splicing multiple steel beams, the two second-layer steel foundations being parallel to each other, and the two ends of each second-layer steel foundation being vertically fixed to the two parallel first-layer steel foundations; the two concrete counterweights being parallel to each other, and the two ends of each concrete counterweight being vertically fixed to the two parallel first-layer steel foundations; and the prestressed stress member being arranged at the bottom of the second-layer steel foundation. The tower crane foundation of the present invention adopts a combination of a steel foundation and concrete counterweights to provide a stable infrastructure for the tower crane. The steel foundation is spliced ​​by multiple sections of steel, so that the steel foundation can be installed and used immediately, which is convenient for construction workers to install or disassemble. Moreover, the steel and concrete counterweights can be completely recycled and used in a turnover manner, which greatly saves construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a concrete counterweight block in one embodiment of the present utility model;

[0016] Figure 2 It is a side view of a concrete counterweight block in one embodiment of the present utility model;

[0017] Figure 3 This is a top view of a concrete counterweight block in one embodiment of the present utility model;

[0018] Figure 4 This is a front view of a steel beam A in one embodiment of the present invention;

[0019] Figure 5 This is a top view of a steel beam A in one embodiment of the present invention;

[0020] Figure 6 It is a front view of a steel beam B in one embodiment of the present utility model;

[0021] Figure 7 It is a top view of the steel beam B in one embodiment of the present utility model;

[0022] Figure 8 This is a schematic diagram of a concrete counterweight block installed on the first layer of steel foundation in one embodiment of the present invention;

[0023] Figure 9 yes Figure 8 Side view of;

[0024] Figure 10 It is a front view of a steel beam a in one embodiment of the present utility model;

[0025] Figure 11 It is a top view of a steel beam a in one embodiment of the present utility model;

[0026] Figure 12 It is a front view of the steel beam b in one embodiment of the present utility model;

[0027] Figure 13 It is a top view of the steel beam b in one embodiment of the present utility model;

[0028] Figure 14 This is a structural diagram of a tower crane foundation in one embodiment of the present utility model;

[0029] Figure 15 yes Figure 14 Side view of;

[0030] Figure 16 It is a side view of a prestressing member provided at the bottom of the second layer of steel foundation in one embodiment of the present invention.

[0031] In the picture:

[0032] 1-Concrete counterweight; 2-Embedded lifting lug; 3-Limiting hole; 4-Flange; 5-Reinforced plate; 6-Steel pad; 7-Limiting rod; 8-Box-section steel beam; 9-Screw; 10-Steel beam A; 11-Steel beam B; 12-Bolts and nuts; 13-Connecting plate; 14-Through hole; 15-Tower crane anchor foot; 16-Steel beam a; 17-Steel beam b; 18-Nut; 19-Jack. DETAILED DESCRIPTION

[0033] The tower crane foundation proposed in this utility model is further described in detail below, with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of this utility model.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0035] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of a utility model, "plurality" means two or more, unless otherwise specifically defined.

[0037] In utility models, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in utility models based on specific circumstances.

[0038] Please refer to Figures 14 to 16 The tower crane foundation includes: a steel foundation, two concrete counterweights 1 arranged on the steel foundation, and a prestressed stress applying member arranged at the bottom of the steel foundation, wherein the steel foundation includes: two first-layer steel foundations formed by splicing multiple steel beams and two second-layer steel foundations formed by splicing multiple steel beams, the two second-layer steel foundations are parallel to each other, and the two ends of each second-layer steel foundation are respectively fixed vertically to the two parallel first-layer steel foundations; the two concrete counterweights 1 are parallel to each other, and the two ends of each concrete counterweight 1 are respectively fixed vertically to the two parallel first-layer steel foundations; the prestressed stress applying member is arranged at the bottom of the second-layer steel foundation. In this embodiment, the prestressed stress applying member is preferably a jack 19. Using a jack to apply prestress to the first-layer steel improves the stress condition of the steel beam after the tower crane is installed and increases the safety factor.

[0039] Please refer to Figures 1 to 3Each concrete counterweight 1 includes: a body, a plurality of pre-buried lifting ears 2 provided on the body, and a plurality of limiting holes 3 opened at both ends of the body. Based on the pre-buried lifting ears 2, the hoisting and installation construction of the concrete counterweight is convenient.

[0040] Please refer to Figures 4 to 9 The first layer of steel foundation includes: a steel beam B11 and two steel beams A10 spliced ​​with the two ends of the steel beam B10; wherein, Figure 4 and Figure 5 As shown, the steel beam A10 includes: a box-section steel beam 8, a plurality of limiting rods 7, two steel pads 6, a flange 4 and a plurality of stiffening plates 5, all of the limiting rods 7 are vertically arranged on the top panel of the box-section steel beam 8, and the size and number of the limiting rods 7 are adapted to the limiting holes 3 of a concrete counterweight 1; the two steel pads 6 are both arranged on the bottom panel of the box-section steel beam 8; the flange 4 is arranged at one end of the box-section steel beam 8; and the plurality of stiffening plates 5 are arranged between the flange 4 and the box-section steel beam 8; as shown in FIG. Figure 8 and Figure 9 As shown, the steel beam A10 is fixed to the limiting hole 3 of the concrete counterweight 1 based on the limiting rod 7, thereby achieving vertical fixation of the steel beam A10 and the concrete counterweight 1. The combination of the limiting rod 7 on the steel beam A10 and the limiting hole 3 on the concrete counterweight 1 effectively increases the stability of the connection between the concrete counterweight and the first layer of steel foundation.

[0041] like Figure 6 and Figure 7 As shown, the steel beam B11 includes: a box-section steel beam 8, a number of screws 9, two flanges 4 and a number of stiffening plates 5, all of which are vertically arranged on the top panel of the box-section steel beam 8; two flanges 4 are respectively arranged at both ends of the box-section steel beam 8; a number of stiffening plates 5 are arranged between the flanges 4 and the box-section steel beam 8; the flanges at both ends of the steel beam B11 and the flanges of the steel beam A10 are matched through bolts and nuts 12 to realize the splicing of the steel beam B11 and the steel beam A10 at both ends.

[0042] Please refer to Figures 10 to 13 , Figure 16 The second layer of steel foundation includes: a steel beam b17 and two steel beams a16 spliced ​​to the two ends of the steel beam b17, and the prestressing member is set at the bottom of the steel beam b17. Figure 10 and Figure 11As shown, the steel beam a16 includes: a box-section steel beam 8, a connecting plate 13, a flange 4 and a number of stiffening plates 5. The connecting plate 13 is arranged on the bottom panel of the box-section steel beam 8, and a number of through holes 14 adapted to the screws 9 of the steel beam B11 are opened on the connecting plate 13 extending beyond the box-section steel beam 8; the flange 4 is arranged at one end of the box-section steel beam 8; a number of stiffening plates 5 are arranged between the flange 4 and the box-section steel beam 8; the steel beam a16 is fixed to the screws 9 of the steel beam B11 based on the through holes 14 on the connecting plate 13 and then fixed by nuts 18, thereby realizing vertical fixation of the steel beam a16 and the steel beam B11.

[0043] like Figure 12 and Figure 13 As shown, the steel beam b17 includes: a box-section steel beam 8, two tower crane anchor feet 15, a flange 4 and a number of stiffening plates 5. The two tower crane anchor feet 15 are both arranged on the top panel of the box-section steel beam 8; the flange 4 is arranged at one end of the box-section steel beam 8; and a number of stiffening plates 5 are arranged between the flange 4 and the box-section steel beam 8.

[0044] The steel beams A, B, a and b in the present invention are connected to each other by using flanges 4, stiffening plates 5, bolts and nuts 12. After the steel concrete foundation is dismantled, all the steel beams can be recycled.

[0045] The tower crane foundation of the utility model adopts the combination of steel foundation and concrete counterweight block to provide a stable infrastructure for the tower crane. The steel foundation is spliced ​​by multiple sections of steel, so that the steel foundation can be used as soon as it is installed, which is convenient for construction workers to install or disassemble. Moreover, the steel and concrete counterweight block can be completely recycled and used in a turnover manner, which greatly saves construction costs.

[0046] In order to better illustrate the structure of the tower crane foundation of the utility model, the following Figures 1 to 16 The specific installation steps are explained below. The tower crane foundation installation steps are as follows:

[0047] Step 1: Lay out the lines and position the tower crane according to its installation location.

[0048] Step 2: Use a forklift or truck crane to lift steel beam A to the predetermined location. A total of four steel beams A need to be installed at the four corners of the foundation.

[0049] Step 3: Use a forklift or truck crane to install two concrete counterweights 1. The counterweights have pre-embedded lifting lugs 2. Insert the stop holes 3 on the counterweights into the stop rods 7 on the steel beam A10 and slowly lower them into place. The counterweights are located on both sides of the foundation. As you can see, the number of concrete counterweights can be increased depending on the crane's performance; this is just a preferred solution.

[0050] Step 4: Use a forklift or truck crane to install steel beam B11. Connect the ends of steel beam B to the two steel beams A10 using bolts and nuts 12. Install two steel beams B11 in total. This completes the first layer of the steel-concrete foundation.

[0051] Step 5: Reference Figure 14 Use a forklift or truck crane to install steel beam a16. Align the holes in the connecting plate 13 at one end of the steel beam a with the reserved screws 9 on the steel beam B17 and insert them. Use nuts to connect the steel beam a16 to the steel beam B11. A total of four steel beams a need to be installed.

[0052] Step 6: Use a forklift or truck crane to install steel beam b17. Connect the ends of steel beam b17 to the two steel beams a16 using bolts and nuts 12. Two steel beams b are required. The second layer of the steel-concrete foundation is now installed. The upper and first layers of the steel-concrete foundation are now fully installed and ready for use.

[0053] Step 7: Check whether the bolts and nuts at all steel beam connection nodes are tightened.

[0054] Step 8: Reference Figure 16 Four jacks are set under the steel beam b17. The position is just below the tower crane anchor foot 15 on the steel beam b. The jacks apply a certain amount of prestress to the steel beam.

[0055] Step 9: Start hoisting the tower crane. Connect the lowest standard section of the tower crane to the tower crane anchor foot 15 reserved on the steel beam b17.

[0056] Step 10: After the tower crane is dismantled, dismantle the steel-concrete foundation in reverse order according to the above steps. Steel beam A, steel beam B, steel beam a, steel beam b, and concrete counterweight blocks can all be completely recycled and can be used at any time.

[0057] It can be understood that the above examples are merely examples listed for a better understanding of the technical solutions of the embodiments of the present application, and are not intended to be the sole limitation on the embodiments.

[0058] Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for this application.

[0059] Obviously, those skilled in the art may make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is intended to include such modifications and variations.

Claims

1. A tower crane foundation, characterized in that: include: A steel foundation, two concrete counterweights (1) arranged on the steel foundation, and a prestressed stress applying member arranged at the bottom of the steel foundation, wherein the steel foundation comprises: two first-layer steel foundations formed by splicing multiple steel beams and two second-layer steel foundations formed by splicing multiple steel beams, the two second-layer steel foundations are parallel to each other, and the two ends of each second-layer steel foundation are respectively fixed vertically to the two parallel first-layer steel foundations; the two concrete counterweights (1) are parallel to each other, and the two ends of each concrete counterweight (1) are respectively fixed vertically to the two parallel first-layer steel foundations; and the prestressed stress applying member is arranged at the bottom of the second-layer steel foundation.

2. The tower crane foundation according to claim 1, characterized in that: Each concrete counterweight (1) comprises a main body, a plurality of pre-buried lifting ears (2) arranged on the main body, and a plurality of limiting holes (3) opened at both ends of the main body.

3. The tower crane foundation according to claim 2, characterized in that: Each first-layer steel foundation comprises: a steel beam B (11) and two steel beams A (10) respectively spliced ​​with the two ends of the steel beam B (10).

4. The tower crane foundation according to claim 3, characterized in that: The steel beam A (10) comprises: a box-section steel beam (8), a plurality of limiting rods (7), two steel pads (6), a flange (4) and a plurality of stiffening plates (5), wherein all limiting rods (7) are vertically arranged on the top panel of the box-section steel beam (8), and the size and number of the limiting rods (7) are adapted to the limiting holes (3) of a concrete counterweight (1); the two steel pads (6) are both arranged on the bottom panel of the box-section steel beam (8); the flange (4) is arranged at one end of the box-section steel beam (8); and the plurality of stiffening plates (5) are arranged between the flange (4) and the box-section steel beam (8); the steel beam A (10) is fixed to the limiting holes (3) of the concrete counterweight (1) based on the limiting rods (7) being docked and fixed to achieve vertical fixation of the steel beam A (10) and the concrete counterweight (1).

5. The tower crane foundation according to claim 3, characterized in that: The steel beam B (11) comprises: a box-section steel beam (8), a plurality of screw rods (9), two flanges (4) and a plurality of stiffening plates (5), wherein all the screw rods are vertically arranged on the top panel of the box-section steel beam (8); the two flanges (4) are respectively arranged at the two ends of the box-section steel beam (8); the plurality of stiffening plates (5) are arranged between the flanges (4) and the box-section steel beam (8); the flanges at the two ends of the steel beam B (11) and the flanges of the steel beam A (10) are matched by bolts and nuts (12) to realize the splicing of the steel beam B (11) and the steel beam A (10) at the two ends.

6. The tower crane foundation according to claim 5, characterized in that: Each second-layer steel foundation comprises: a steel beam b (17) and two steel beams a (16) respectively connected to the two ends of the steel beam b (17), and the prestressing member is arranged at the bottom of the steel beam b (17).

7. The tower crane foundation according to claim 6, characterized in that: The steel beam a (16) comprises: a box-section steel beam (8), a connecting plate (13), a flange (4) and a plurality of stiffening plates (5), wherein the connecting plate (13) is arranged on the bottom panel of the box-section steel beam (8), and a plurality of through holes (14) adapted to the screw rods (9) of the steel beam B (11) are opened on the connecting plate (13) extending beyond the box-section steel beam (8); the flange (4) is arranged at one end of the box-section steel beam (8); the plurality of stiffening plates (5) are arranged between the flange (4) and the box-section steel beam (8); the steel beam a (16) is fixed to the screw rods (9) of the steel beam B (11) by docking with the through holes (14) on the connecting plate (13) and then fixed by nuts (18), thereby realizing vertical fixation of the steel beam a (16) and the steel beam B (11).

8. The tower crane foundation according to claim 6, wherein: The steel beam b (17) comprises: a box-section steel beam (8), two tower crane anchor feet (15), a flange (4) and a plurality of stiffening plates (5), wherein the two tower crane anchor feet (15) are both arranged on the top panel of the box-section steel beam (8); and the flange (4) is arranged at one end of the box-section steel beam (8).

9. The tower crane foundation according to any one of claims 1 to 8, characterized in that: The prestressing member is a jack (19).

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