Tower body embedded section and tower crane

Abstract

The utility model discloses a tower body preburied section and tower crane, the preburied frame of tower body preburied section includes installation inclined beam, first preburied branch leg and first connecting seat, the number of installation inclined beam is two, two installation inclined beam cross arrangement and form have the intersection, first preburied branch leg from the end of installation inclined beam downward stretch out setting, first connecting seat from installation inclined beam upward stretch out setting for the tower body main chord of first tower body butt joint, and first connecting seat is located between first preburied branch leg and intersection, this tower body preburied section can more fully utilize the carrying capacity of concrete foundation, and the load exerted to concrete foundation under the same overturning moment is smaller compared with traditional structure, thereby reach the need of reducing the structure strength of concrete foundation, and improve the purpose of tower body independent height.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, specifically relating to a tower body embedded section and a tower crane. Background Technology

[0002] Tower cranes have various fixing methods to suit different construction environments, among which the outrigger-fixed type is the most common. For outrigger-fixed tower cranes, a frame-type outrigger structure is installed at the base of the tower. The main body of the frame-type outrigger structure is embedded in the concrete foundation, and the top of the frame-type outrigger structure extends out of the concrete foundation and is used to connect to the foundation section of the tower. Tower cranes generate an overturning moment that applies a load to the concrete foundation. The magnitude of this load is related to the tower height; the taller the tower, the greater the force at the interface between the outriggers and the tower foundation section, and the greater the load transmitted to the concrete foundation. On the other hand, the structural form of the frame-type outrigger structure also affects the load that the concrete foundation can bear. Existing frame-type outrigger structures transmit a large load to the concrete foundation, necessitating the use of high-strength concrete foundations, resulting in higher production costs and limiting the independent height of the tower. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies, this utility model provides a tower body embedded section and a tower crane, which aims to solve the technical problem of large loads transferred to the concrete foundation by the existing frame-type leg structure.

[0004] To achieve the above objectives, the first aspect of this utility model provides a tower body embedded section, including an embedded frame, including an installation inclined beam, a first embedded support leg, and a first connecting seat. The number of installation inclined beams is two, and the two installation inclined beams are arranged crosswise to form an intersection point. The first embedded support leg extends downward from the end of the installation inclined beam, and the first connecting seat extends upward from the installation inclined beam for connecting with the main chord of the first tower body. The first connecting seat is located between the first embedded support leg and the intersection point.

[0005] In this embodiment of the utility model, the first tower body is set as the inner tower body, and the mounting inclined beam is also provided with a second connecting seat and a second pre-embedded support leg. The second connecting seat is located outside the first connecting seat and extends upward to allow the main chord of the outer tower body to be connected. The second pre-embedded support leg is located between the intersection point and the first pre-embedded support leg and extends downward.

[0006] In this embodiment of the utility model, the second pre-embedded leg is located on the outside of the first connecting seat, and the second connecting seat is located between the second pre-embedded leg and the first pre-embedded leg.

[0007] In this embodiment of the utility model, the second pre-embedded support leg is located on the outside of the first connecting seat, and the center line of the second connecting seat is collinear with the center line of the first pre-embedded support leg.

[0008] In this embodiment of the utility model, the center line of the second pre-embedded leg is collinear with the center line of the first connecting seat, and the second connecting seat is located between the second pre-embedded leg and the first pre-embedded leg.

[0009] In this embodiment of the utility model, a third pre-embedded support leg extends downward from the intersection of the two mounting inclined beams.

[0010] In this embodiment of the utility model, both the first and second ends of the two mounting inclined beams are provided with first embedded support legs, and the distance between the first end and the intersection point is less than the distance between the second end and the intersection point.

[0011] In this embodiment of the invention, the two mounting beams are orthogonally arranged, and the distance between either end of the two mounting beams and the intersection point is equal.

[0012] In this embodiment of the utility model, one of the two mounting inclined beams is designated as the main inclined beam and the other as the secondary inclined beam. The main inclined beam is integrally formed, and the intersection point is located on the main inclined beam. The secondary inclined beam includes two separate connecting beams, which are detachably disposed on opposite sides of the main inclined beam.

[0013] In this embodiment of the utility model, a first connecting plate is provided on the main inclined beam, a second connecting plate is provided on the split connecting beam, and the tower body embedded section also includes a reinforcing rod. The two ends of the reinforcing rod are respectively connected in series with the first connecting plate and the second connecting plate through pins.

[0014] To achieve the above objectives, a second aspect of this utility model provides a tower crane, wherein the tower crane includes the aforementioned pre-embedded section of the tower body.

[0015] Through the above technical solutions, the tower body embedded section and tower crane provided by this utility model embodiment have the following beneficial effects:

[0016] When a tower crane uses the aforementioned pre-embedded tower section, the pre-embedded frame of the pre-embedded tower section includes an installation inclined beam, a first pre-embedded leg, and a first connecting seat. There are two installation inclined beams, which are intersected and form an intersection point. The first pre-embedded leg extends downwards from the end of the installation inclined beam, and the first connecting seat extends upwards from the installation inclined beam for connection with the main chord of the first tower body. The first connecting seat is located between the first pre-embedded leg and the intersection point. Therefore, the cross-sectional dimension of the portion of the pre-embedded frame located in the concrete foundation is larger than the cross-sectional dimension of the first tower body but smaller than the cross-sectional dimension of the concrete foundation. Compared to traditional frame-type leg structures, the distance between the first leg and the edge of the concrete foundation is shorter, allowing for more efficient use of the concrete foundation's bearing capacity. Furthermore, under the same overturning moment, the greater the distance from the leg to the center of the frame, the smaller the load applied to the concrete foundation. Therefore, at the same tower height, the pre-embedded tower section provided by this invention applies a smaller load to the concrete foundation, thereby reducing the need for strength in the concrete foundation structure and increasing the independent height of the tower body.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a structural schematic diagram of the pre-embedded section of the tower body according to an embodiment of the present utility model;

[0020] Figure 2 This is a simplified front view of a single-tower type tower body embedded section according to an embodiment of the present utility model;

[0021] Figure 3 This is a simplified top view of a single-tower type tower body embedded section according to an embodiment of the present utility model;

[0022] Figure 4 This is a simplified front view of a single-tower-body center support type tower body embedded section according to an embodiment of the present utility model;

[0023] Figure 5 This is a simplified top view of a single-tower-body center support type tower body embedded section according to an embodiment of the present utility model.

[0024] Figure 6 This is a simplified front view of a multi-tower center support type tower body embedded section according to one embodiment of the present utility model;

[0025] Figure 7This is a simplified top view of a multi-tower center support type tower body embedded section according to one embodiment of the present utility model;

[0026] Figure 8 This is a simplified front view of a multi-tower body off-center center support type tower body pre-embedded section according to an embodiment of the present utility model;

[0027] Figure 9 This is a simplified top view of a multi-tower body off-site center support type tower body pre-embedded section according to an embodiment of the present utility model;

[0028] Figure 10 This is a simplified front view of the embedded section of the multi-tower type tower body according to one embodiment of the present utility model.

[0029] Figure 11 This is a simplified top view of the embedded section of the multi-tower type tower body according to one embodiment of the present utility model.

[0030] Figure 12 This is a simplified front view of an externally displaced multi-tower type tower body pre-embedded section according to an embodiment of the present utility model;

[0031] Figure 13 This is a simplified top view of an externally displaced multi-tower type tower body pre-embedded section according to an embodiment of the present utility model;

[0032] Figure 14 This is a simplified front view of the pre-embedded section of the multi-tower type tower body according to an embodiment of the present utility model;

[0033] Figure 15 This is a simplified top view of a pre-embedded section of a multi-tower type tower body according to an embodiment of the present utility model;

[0034] Figure 16 This is a simplified front view of the irregular cross-section tower body embedded section according to one embodiment of the present utility model;

[0035] Figure 17 This is a simplified top view of the irregular cross-section tower body embedded section according to one embodiment of the present utility model;

[0036] Figure 18 This is a detailed structural diagram of the pre-embedded section of the tower body according to one embodiment of the present utility model;

[0037] Figure 19 This is a torque load analysis diagram of the pre-embedded section of the tower body according to an embodiment of the present utility model;

[0038] Figure 20 This is an installation diagram of the pre-embedded section of the tower body according to one embodiment of the present utility model;

[0039] Figure 21This is a partial structural schematic diagram of the pre-embedded section of the tower body according to one embodiment of the present utility model.

[0040] Explanation of reference numerals in the attached figures

[0041] Detailed Implementation

[0042] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0043] The following description of the tower body embedded section and tower crane of this utility model is based on the accompanying drawings.

[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 20 As shown, the first aspect of this utility model provides a tower body embedded section, wherein the tower body embedded section includes:

[0045] The pre-embedded frame 1 includes an installation inclined beam 11, a first pre-embedded support leg 21, and a first connecting seat 31. There are two installation inclined beams 11, which are arranged crosswise to form an intersection point 10. The first pre-embedded support leg 21 extends downward from the end of the installation inclined beam 11, and the first connecting seat 31 extends upward from the installation inclined beam 11 for connecting with the main chord of the first tower body 4. The first connecting seat 31 is located between the first pre-embedded support leg 21 and the intersection point 10.

[0046] When a tower crane uses the aforementioned pre-embedded tower body section, the pre-embedded frame 1 of the pre-embedded tower body section includes an installation inclined beam 11, a first pre-embedded support leg 21, and a first connecting seat 31. There are two installation inclined beams 11, which are arranged intersectingly to form an intersection point 10. The first pre-embedded support leg 21 extends downward from the end of the installation inclined beam 11, and the first connecting seat 31 extends upward from the installation inclined beam 11 for connection with the main chord of the first tower body 4. The first connecting seat 31 is located between the first pre-embedded support leg 21 and the intersection point 10. Therefore, the cross-sectional dimension of the portion of the pre-embedded frame 1 located in the concrete foundation 5 is larger than the cross-sectional dimension of the first tower body 4 but smaller than the cross-sectional dimension of the concrete foundation 5. On the one hand, compared to the traditional frame-type support leg structure, the distance between the first support leg and the edge of the concrete foundation 5 is shorter, allowing for more efficient utilization of the load-bearing capacity of the concrete foundation 5. On the other hand, the overturning moment of a tower crane during operation includes bending moment and torque. For two cranes subjected to the same bending moment and torque, the force analysis is shown in 19. Figure 19 The triangle enclosed by the solid lines represents the stress condition of the concrete foundation 5 when the tower body embedded section of this utility model is used. Figure 19The triangle enclosed by the dashed lines represents the stress condition of the concrete foundation 5 when using traditional pre-embedded joints. The area of ​​the triangle represents the magnitude of the bending moment and torque of the tower body, the horizontal side length represents the distance from the support leg to the center of the tower body, and the vertical side length represents the magnitude of the load. Figure 19 In the diagram, the areas of the triangles enclosed by the solid lines and the dashed lines are the same, meaning that the bending moment and torque of the tower bodies are the same for both. The horizontal side length of the triangle enclosed by the solid lines is greater than that of the triangle enclosed by the dashed lines, and the vertical side length of the triangle enclosed by the solid lines is less than that of the triangle enclosed by the dashed lines. This means that the greater the distance from the support leg to the center of the tower body, the smaller the load borne by the concrete foundation 5. Therefore, at the same tower height, the pre-embedded section of the tower body provided by this invention applies a smaller load to the concrete foundation 5. Using the pre-embedded section of the tower body provided by this invention can achieve the goals of reducing the structural strength requirements of the concrete foundation 5 and increasing the independent height of the tower body.

[0047] In this embodiment of the invention, the first tower body 4 is designated as the inner tower body. A second connecting seat 32 and a second embedded support leg 22 are also provided on the mounting beam 11. The second connecting seat 32 is located outside the first connecting seat 31 and extends upwards for connection with the main chord of the outer tower body. The second embedded support leg 22 is located between the intersection 10 and the first embedded support leg 21 and extends downwards. Therefore, the embedded tower body section of this invention can be used to connect tower cranes with inner and outer tower bodies. The provision of the second embedded support leg 22 increases the structural strength of the embedded tower body section and improves its load-bearing capacity. Furthermore, since the second connecting seat 32 is located outside the second embedded support leg 22, the weight of the outer tower body can be better distributed to the first embedded support leg 21 and the second embedded support leg 22.

[0048] Specifically, such as Figure 10 and Figure 11 As shown, this embodiment of the utility model provides an internally displaced multi-tower type tower body pre-embedded section. The second pre-embedded support leg 22 is located outside the first connecting seat 31, and the center line of the second connecting seat 32 is collinear with the center line of the first pre-embedded support leg 21. Therefore, the average cross-sectional length of the inner and outer tower bodies is less than the average distance between adjacent first pre-embedded support legs 21 and adjacent second pre-embedded support legs 22, resulting in a smaller load exerted by the tower body pre-embedded section on the concrete foundation 5.

[0049] Specifically, such as Figure 12 and Figure 13 As shown, this embodiment of the utility model provides an externally positioned multi-tower embedded section. The centerline of the second embedded leg 22 is collinear with the centerline of the first connecting seat 31, and the second connecting seat 32 is located between the second embedded leg 22 and the first embedded leg 21. Therefore, the average cross-sectional length of the inner and outer towers is less than the average distance between adjacent first embedded legs 21 and adjacent second embedded legs 22, resulting in a smaller load exerted by the embedded section on the concrete foundation 5.

[0050] Specifically, such as Figure 14 and Figure 15 As shown, this embodiment of the utility model provides a fully displaced multi-tower type tower body embedded section. The second embedded leg 22 is located on the outside of the first connecting seat 31, and the second connecting seat 32 is located between the second embedded leg 22 and the first embedded leg 21. Therefore, the cross-sectional area of ​​the outer tower body is smaller than the distance between adjacent first embedded legs 21, and the cross-sectional area of ​​the inner tower body is smaller than the distance between adjacent second embedded legs 22. Consequently, the load exerted by the first embedded legs 21 and the second embedded legs 22 on the concrete foundation 5 is smaller.

[0051] In this embodiment of the invention, a third embedded support leg 23 extends downward from the intersection 10 of the two mounting inclined beams 11. The setting of the third embedded support leg 23 increases the structural strength of the tower body embedded section and improves the load capacity of the tower body embedded section. It can be used in tower cranes with inner and outer tower bodies as well as tower cranes with a large single tower body.

[0052] Specifically, such as Figure 4 and Figure 5 As shown, this utility model embodiment provides a single tower body center support type tower body pre-embedded section, where the first connecting seat 31 is located between the first pre-embedded support leg 21 and the third pre-embedded support leg 23 and is set closer to the first pre-embedded support leg 21.

[0053] Specifically, such as Figure 6 and Figure 7 As shown, this utility model embodiment provides a multi-tower center support type tower body embedded section. The mounting inclined beam 11 extends upward from the outside of the first connecting seat 31 and is provided with a second connecting seat 32. The center line of the second connecting seat 32 is collinear with the center line of the first embedded support leg 21. This configuration is suitable for multi-tower tower cranes. The first tower body 4 is set as the inner tower body and connected to the first connecting seat 31, while the outer tower body is connected to the second connecting seat 32.

[0054] Specifically, such as Figure 8 and Figure 9 As shown, this utility model embodiment provides a multi-tower body off-center center support type tower body pre-embedded section. The first connecting seat 31 and the second connecting seat 32 are sequentially arranged on the installation inclined beam 11 along the direction of the third pre-embedded support 23 at the intersection towards the first support 21. The first connecting seat 31 is used to connect the inner tower body, and the second connecting seat 32 is used to connect the outer tower body.

[0055] like Figure 16 and Figure 17As shown in this embodiment of the invention, the two ends of the inclined beam 11 along its length are defined as the first end and the second end, respectively. Both the first and second ends of the two inclined beams 11 are provided with first embedded legs 21, and the distance between the first end and the intersection point 10 is less than the distance between the second end and the intersection point 10. The embedded frame 1 is arranged in an isosceles trapezoidal shape, which can be correspondingly installed within a building with a concave cross-section. This ensures that the distance between the crane tower and the building meets the specifications, while also extending the distance from the first embedded leg 21 to the center of the tower body to reduce the load borne by the concrete foundation 5.

[0056] like Figures 12 to 15 As shown, in this embodiment of the present invention, two mounting inclined beams 11 are orthogonally arranged, and the distance between any end of the two mounting inclined beams 11 and the intersection point 10 is equal.

[0057] like Figure 21 As shown in this embodiment of the invention, one of the two mounting inclined beams 11 is designated as the main inclined beam 111, and the other as the secondary inclined beam. The main inclined beam 111 is integrally formed, with the intersection point 10 located on the main inclined beam 111. The secondary inclined beam includes two separate connecting beams 112, which are detachably disposed on opposite sides of the main inclined beam 111. The two separate connecting beams 112 of the secondary inclined beam are reliably connected to the main inclined beam 111 by bolts. This split design facilitates transportation and on-site assembly.

[0058] Of course, this utility model is not limited to this. The main inclined beam 111 can also be configured as two separate connecting beams 112, that is, the center lines of the two separate connecting beams 112 that make up the main inclined beam 111 are arranged collinearly, the center lines of the two separate connecting beams 112 that make up the secondary inclined beam are arranged collinearly, and the center lines of the main and secondary inclined beams are perpendicular to each other.

[0059] like Figure 21 As shown in this embodiment of the invention, the main inclined beam 111 is provided with a first connecting plate 113, the split connecting beam 112 is provided with a second connecting plate 114, and the tower body embedded section also includes a reinforcing rod 6. The two ends of the reinforcing rod 6 are respectively connected in series with the first connecting plate 113 and the second connecting plate 114 through pins. The setting of the reinforcing rod 6 improves the deformation resistance of the tower body embedded section during hoisting operations, and the reinforcing rod 6 is detachable, which facilitates transportation and on-site assembly.

[0060] like Figure 18As shown in the embodiment of this utility model, the first pre-embedded support leg 21 includes a support leg main chord 211, a first mounting plate 212, and a second mounting plate 213. The first mounting plate 212 has a first connecting hole for detachable connection of the straight web member 214, and the second mounting plate 213 has a second connecting hole for detachable connection of the straight web member 214 and a third connecting hole for detachable connection of the oblique web member 215. The bottom end of the support leg main chord 211 is provided with one of the first mounting plate 212 and the second mounting plate 213, and the top end of the support leg main chord 211 is provided with the other of the first mounting plate 212 and the second mounting plate 213. The first mounting plate 212 and the second mounting plate 213 on adjacent support leg main chords 211 are positioned opposite each other, thereby forming a triple spatial force system of "straight web member - oblique web member - support leg" and constructing a stable triangular grid structure.

[0061] like Figure 18 As shown, in this embodiment of the invention, the first connecting seat 31 has a supporting step surface for the main chord of the tower body to abut against. A pin is laterally inserted through the upper part of the supporting step surface of the first connecting seat 31. The pin is used to detachably connect the first connecting seat 31 and the main chord of the tower body. The supporting step surface provides a precise axial positioning reference for the main chord of the tower body, achieves uniform load distribution through surface contact, and improves installation efficiency through the pin connection method. Furthermore, the pins on the two connected first connecting seats 31 are arranged horizontally and vertically.

[0062] To achieve the above objectives, the second aspect of this utility model provides a tower crane, wherein the tower crane includes the aforementioned tower body embedded section. Since the tower crane adopts all the technical solutions of the above embodiments, it has at least the above-mentioned beneficial effects, which will not be elaborated here.

[0063] In the description of this utility model, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A pre-embedded section for a tower body, characterized in that, The embedded section of the tower body includes: The pre-embedded frame (1) includes an installation inclined beam (11), a first pre-embedded support leg (21), and a first connecting seat (31). There are two installation inclined beams (11), which are arranged crosswise and form an intersection point (10). The first pre-embedded support leg (21) extends downward from the end of the installation inclined beam (11), and the first connecting seat (31) extends upward from the installation inclined beam (11) for connecting the main chord of the first tower body (4). The first connecting seat (31) is located between the first pre-embedded support leg (21) and the intersection point (10).

2. The tower body embedded section according to claim 1, characterized in that, The first tower body (4) is set as the inner tower body. The mounting inclined beam (11) is also provided with a second connecting seat (32) and a second embedded support leg (22). The second connecting seat (32) is located outside the first connecting seat (31) and extends upward for connecting the main chord of the outer tower body. The second embedded support leg (22) is located between the intersection (10) and the first embedded support leg (21) and extends downward.

3. The tower body embedded section according to claim 2, characterized in that, The second embedded support leg (22) is located on the outside of the first connecting seat (31), and the second connecting seat (32) is located between the second embedded support leg (22) and the first embedded support leg (21).

4. The tower body embedded section according to claim 2, characterized in that, The second embedded support leg (22) is located on the outside of the first connecting seat (31), and the center line of the second connecting seat (32) is collinear with the center line of the first embedded support leg (21).

5. The tower body embedded section according to claim 2, characterized in that, The center line of the second embedded support leg (22) is collinear with the center line of the first connecting seat (31), and the second connecting seat (32) is located between the second embedded support leg (22) and the first embedded support leg (21).

6. The tower body embedded section according to claim 1, characterized in that, A third embedded support leg (23) extends downward at the intersection (10) of the two installation inclined beams (11).

7. The tower body embedded section according to claim 1, characterized in that, The first end and the second end of the two mounting inclined beams (11) are provided with the first embedded support leg (21), and the distance between the first end and the intersection point (10) is less than the distance between the second end and the intersection point (10); Alternatively, the two mounting beams (11) are arranged orthogonally, and the distance between either end of the two mounting beams (11) and the intersection point (10) is equal.

8. The tower body embedded section according to any one of claims 1 to 7, characterized in that, One of the two mounting inclined beams (11) is designated as the main inclined beam (111), and the other is designated as the secondary inclined beam. The main inclined beam (111) is integrally formed, and the intersection point (10) is located on the main inclined beam (111). The secondary inclined beam includes two separate connecting beams (112), which are detachably disposed on opposite sides of the main inclined beam (111).

9. The tower body embedded section according to claim 8, characterized in that, The main inclined beam (111) is provided with a first connecting plate (113), the split connecting beam (112) is provided with a second connecting plate (114), and the tower body embedded section also includes a reinforcing rod (6). The two ends of the reinforcing rod (6) are connected in series with the first connecting plate (113) and the second connecting plate (114) respectively through pins.

10. A tower crane, characterized in that, The tower crane includes the tower body embedded section according to any one of claims 1 to 9.

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