Tower crane combined support attachment structure for a concrete frame structure

Abstract

The utility model discloses a tower crane combination support attached structure of concrete frame structure, including concrete frame column, concrete floor and combination attached device, combination attached device includes vertical support structure and horizontal hoop structure, and vertical support structure supports between horizontal hoop structure and concrete floor, including vertical surface V type support, and every vertical surface V type support includes bottom plate, V type support pole and top support plate, and bottom plate falls and places on the concrete floor, and the bottom of V type support pole is connected with bottom plate, and top support plate is connected with the top of V type support pole, and the inner wall of horizontal hoop structure is close to and surrounds the outer wall surface all around of concrete frame column, and the bottom surface of profile steel rectangular frame is located the same plane, and top support plate all tops in this plane, the utility model discloses two -way combination support attached structure through vertical and horizontal, reduces the pressure intensity of concrete surface, avoids the collapse and cracking, and the stress is clear, high strength, and the installation is quick, and can easily dismouting and turns to use.

Description

Technical Field

[0001] This utility model belongs to the field of tower crane jib connection, and in particular a tower crane combined support attachment structure with a concrete frame structure. Background Technology

[0002] Tower cranes, as core heavy vertical transportation equipment on construction sites, require their towers to be gradually raised as the building's construction height increases. Once the tower crane's working height exceeds its maximum independent height, a jib system is installed to effectively connect the tower to the main building structure to ensure stability and safety. This system transfers some of the load to the main structure, ensuring the tower crane's jib height remains within a safe range and maintaining tower stability and operational safety. Therefore, the jib system connected to the main building structure is a crucial component for maintaining the safety of tower cranes during lifting and operation.

[0003] In the jib system of a concrete frame structure, one end is fixed to the standard section of the tower body via an attachment frame, while the other end is connected to the structure via an attachment support pre-embedded in the load-bearing member or a high-strength tie bolt drilled through the load-bearing member later. Using attachment supports is cumbersome due to the tedious pre-embedding process, and the attachment point still needs to be close to the member with the pre-embedded support, limiting the selection of the tower crane's attachment location. Using high-strength tie bolts results in a small contact area between the bolt and the concrete; under the leverage of a long bolt, the concrete structure is damaged, and the concrete near the bolt hole surface is often cracked or even broken, affecting not only the concrete quality but also posing a structural safety hazard.

[0004] To avoid the above problems, if an attachment point is chosen at the location of the concrete frame column, the existing technology still has the following issues: I. Existing attachment systems for concrete columns use angle irons at the column corners, with external bolts tightening each angle iron frame. Essentially, this is still a long bolt connection, which generates huge local compressive stress at the corners of the concrete column, still leading to the risk of the concrete crushing and cracking. At the same time, there are many assembly parts, the assembly process is complicated, and the installation efficiency is limited.

[0005] II. Ring-type attachment systems are generally used on steel structure columns. They are usually connected to the steel column. Directly using them can easily damage the concrete column. It is necessary to optimize the force transmission path to protect the concrete. Utility Model Content

[0006] The purpose of this utility model is to provide a tower crane combined support attachment structure for concrete frame structures. It aims to solve the technical problems of existing tower crane attachment systems for concrete frame columns, which suffer from excessive local pressure due to angle irons at the column corners and external bolts, leading to concrete crushing and cracking, as well as complex assembly and low efficiency. It also addresses the technical problem that existing hoop attachment systems are generally used for steel structure columns and require connection with steel columns. Directly using them for concrete columns can easily damage the concrete structure, requiring optimization of the force transmission path to protect the concrete.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A combined support and attachment structure for tower cranes with a concrete frame structure includes rectangular concrete frame columns, a concrete floor beneath the concrete frame columns, and a combined attachment device. The combined attachment device includes a vertical support structure and a horizontal enclosure structure. The vertical support structure is situated between the bottom surface of the horizontal enclosure structure and the top surface of the concrete floor. It includes two vertical V-shaped supports parallel to the sides of the concrete frame columns. Each vertical V-shaped support consists of a base plate, a V-shaped support rod, and a top support plate. The base plate rests on the concrete floor, and the bottom end of the V-shaped support rod is fixedly connected to the top surface of the base plate. The bottom surface of each top support plate is fixedly connected to the top of the V-shaped support rod. The top surfaces of the top support plates of all vertical V-shaped supports are flush. The horizontal hoop structure is a rectangular steel frame whose inner wall shape conforms to the outer wall shape of the concrete frame column. The inner wall of the horizontal hoop structure is tightly attached to and surrounds the outer wall surface of the concrete frame column. The bottom surface of the steel rectangular frame is located on the same plane, and the top support plates of all vertical V-shaped supports rest on this plane. The horizontal hoop structure is composed of a hoop main frame near the tower crane and a hoop sub-frame away from the tower crane. The hoop main frame is also equipped with a tower crane connecting lug plate that is vertically inserted into the middle of the outer wall of the hoop main frame and fixedly connected to it. The tower crane's attachment rod is fixedly connected to the horizontal hoop structure through the tower crane connecting lug plate.

[0008] The vertical V-shaped supports are centered on the left and right sides of the non-tower crane connection side of the concrete frame column.

[0009] Holes are made at both ends of the base plate, and the holes are anchored to the concrete floor by threaded rebars inserted into the concrete floor and nuts.

[0010] Both the main frame and the secondary frame of the hoop are U-shaped frames. The U-shaped frame includes a long side frame, short side frames that are symmetrically and vertically fixed to both ends of the long side frame, and a main frame docking plate. The main frame docking plate is fixedly connected to the end face of the short side frame, and its inner wall surface is flush with the inner wall surface of the short side frame. Its width is the same as the width of the corresponding side short side frame, and its vertical dimension exceeds the vertical cross-sectional dimension of the corresponding side short side frame. The excess part is provided with a main frame docking hole. The docking surfaces of the main frame and the secondary frame docking plates of the hoop are in close contact. At the same time, the main frame and the secondary frame docking holes of the hoop are correspondingly set and anchored by connecting bolts.

[0011] The U-shaped frame is made of double channel steels with their openings facing outwards and arranged opposite each other. The long double channel steel of the long frame and the short double channel steel of the short frame have the same cross-sectional dimensions and are connected by the same frame connecting plate. The bottom plate of the short double channel steel is clamped on the upper and lower sides of the frame connecting plate and fixedly connected. The width of the frame connecting plate is not greater than the width of the short double channel steel. The frame connecting plate extends beyond the connecting end of the short double channel steel, and the extension length is not greater than the width of the long double channel steel. The connecting end of the bottom plate of the long double channel steel is clamped on the upper and lower sides of the extension and fixedly connected.

[0012] The outer side of the short frame is also fixedly connected with reinforcing plates that also pull the short side double channel steel. The height of the reinforcing plates is not greater than the height of the short frame.

[0013] Each V-shaped support rod has two support rods corresponding to the short side frame of the main frame and the sub-frame of the hoop. The short side double channel steel of the short side frame includes an upper channel steel and a lower channel steel. The top support plate is rectangular, and the width of the top support plate is smaller than the width of the lower channel steel on the corresponding side. The two top support plates of the vertical V-shaped support are inserted into the lower channel steel on the corresponding side. The lower channel steel includes a lower channel side plate and a lower channel bottom plate. The top support plate is limited by the lower channel side plate and pressed against the lower channel bottom plate.

[0014] The tower crane connecting lugs are inserted between the bottom plates of the long side double channel steel of the tower crane connecting side and the adjacent frame connecting plate.

[0015] The mating holes of the mother and daughter frame are symmetrically distributed on the upper and lower parts of the mating plate of the mother and daughter frame.

[0016] Compared with the prior art, this utility model has the following features and beneficial effects: This utility model relates to a tower crane combined support attachment structure designed for concrete frame structures, particularly concrete floors and concrete frame columns. The horizontal hoop structure's parent-child frame connecting plate is improved to be flush with the inner wall of the short frame, increasing the contact area between the overall steel rectangular frame and the concrete frame column. This changes the load transfer method from point contact via the outer bolts to surface contact via the horizontal hoop structure, reducing the pressure on the concrete surface and fundamentally preventing crushing and cracking. Simultaneously, the horizontal hoop structure is a semi-frame assembly, connected by parent-child frame connecting plates and high-strength bolts, resulting in a simple structure with clear stress distribution and high strength. The modular design of the U-shaped frame ensures quick installation, eliminating the need for extensive on-site assembly of individual parts, and allowing for easy disassembly and reuse.

[0017] The tower crane combined support attachment structure of this utility model also includes a vertical support structure. The vertical support structure is designed in a V-shape and inserted into the horizontal hoop structure. It is limited by the channel steel side plates and forms a laterally stable triangular structure with the horizontal hoop structure. The vertical support structure further stabilizes the overall attachment structure at the connection position of the side support short frame. The vertical support structure transmits the force of the attachment rod through the tower crane connecting lug plate → horizontal hoop structure → vertical support structure. While transmitting the force of the attachment rod to the frame column through the horizontal hoop structure, it also disperses it to the concrete floor through the vertical support structure, enriching the force transmission path and further dispersing the pressure of the attachment rod force on the surface of the concrete frame column.

[0018] This utility model achieves the attachment connection between the tower crane and the concrete frame structure through a combination of vertical and horizontal bidirectional support and attachment structures. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 yes Figure 1 A side view structural diagram.

[0022] Figure 3 yes Figure 1 A schematic diagram of the structure from below, showing the connection of a single column in the middle.

[0023] Figure 4 yes Figure 3 Schematic diagram of the connection between the vertical support structure and the horizontal enclosure structure.

[0024] Figure 5 yes Figure 1 A schematic diagram showing the connection between the vertical support structure and the concrete floor.

[0025] Figure 6This is a schematic diagram showing the disassembly of the horizontal hoop structure.

[0026] Figure 7 This is a top view of the horizontal enclosure structure.

[0027] Figure 8 This is a structural diagram of the frame connecting plate in a horizontal hoop structure.

[0028] Figure 9 This is a structural diagram of the frame connecting plate and the tower crane connecting lug plate in a horizontal hoop structure.

[0029] Figure 10 This is a schematic diagram showing the disassembled connection plates and connecting bolts of the mother and daughter frame.

[0030] Attached reference numerals: 1-Concrete frame column, 2-Concrete floor, 21-Threaded rebar, 3-Vertical support structure, 31-Base plate, 32-V-shaped support rod, 33-Top support plate, 4-Horizontal hoop structure, 41-Hoop main frame, 42-Hoop sub-frame, 43-Connecting bolt, 4a-Long frame, 4b-Short frame, 4c-Support frame butt plate, 4d-Support frame butt hole, 5-Tower crane, 51-Attachment rod, 6-Long side double channel steel, 7-Short side double channel steel, 71-Upper channel steel, 72-Lower channel steel, 721-Lower channel side plate, 722-Lower channel bottom plate, 8-Frame connecting plate, 9-Reinforcing gusset plate, 10-Tower crane connecting lug plate. Detailed Implementation

[0031] See the examples. Figure 1-2 As shown, a combined support and attachment structure for a tower crane with a concrete frame structure includes a rectangular concrete frame column 1, a concrete floor 2 below the concrete frame column 1, and a combined attachment device. The combined attachment device includes a vertical support structure 3 and a horizontal hoop structure 4.

[0032] See Figure 1-5 As shown, the vertical support structure 3 is supported between the bottom surface of the horizontal hoop structure 4 and the top surface of the concrete floor 2. It includes two vertical V-shaped supports parallel to the sides of the concrete frame column 1. Each vertical V-shaped support includes a base plate 31, a V-shaped support rod 32, and a top support plate 33. The base plate 31 rests on the concrete floor 2. The bottom end of the V-shaped support rod 32 is fixedly connected to the top surface of the base plate 31. The bottom surface of the top support plate 33 is fixedly connected to the top end of the V-shaped support rod 32. The top surfaces of the top support plates 33 of all vertical V-shaped supports are flush. The vertical V-shaped supports are centrally located on opposite sides of the concrete frame column 1 on the non-tower crane connection side. The base plate can be placed directly on the concrete floor 2, or holes can be opened at both ends of the base plate 31, and the holes can be anchored to the concrete floor 2 by threaded rebar 21 inserted into the concrete floor 2 with nuts.

[0033] See Figure 1-4As shown in Figure 6-10, the horizontal hoop structure 4 is a steel rectangular frame whose inner wall shape is adapted to the outer wall shape of the concrete frame column 1. The inner wall of the horizontal hoop structure 4 is closely attached to and surrounds the outer wall surface of the concrete frame column 1. The bottom surface of the steel rectangular frame is located on the same plane, and the top support plates 33 of all vertical V-shaped supports are abutted on this plane. The horizontal hoop structure 4 is assembled from the hoop mother frame 41 adjacent to the tower crane 5 and the hoop sub-frame 42 away from the tower crane 5. The hoop mother frame 41 is also provided with a tower crane connecting ear plate 10 that is vertically inserted into the middle of the outer wall surface of the hoop mother frame 41 and fixedly connected to it. The attachment rod 51 of the tower crane 5 is fixedly connected to the horizontal hoop structure 4 through the tower crane connecting ear plate 10.

[0034] See Figure 6-7 As shown, both the main frame 41 and the secondary frame 42 are U-shaped frames. The U-shaped frame includes a long side frame 4a, short side frames 4b symmetrically and vertically fixed to both ends of the long side frame 4a, and a main frame / secondary frame docking plate 4c. The docking plate 4c is fixedly connected to the end face of the short side frame 4b, its inner wall is flush with the inner wall of the short side frame 4b, its width is equal to the width of the corresponding side short side frame 4b, and its vertical dimension exceeds the vertical cross-sectional dimension of the corresponding side short side frame 4b. The excess portion is provided with a main frame / secondary frame docking hole 4d. The docking surfaces of the main frame / secondary frame docking plates 4c of the main frame 41 and the secondary frame 42 are in close contact, and the main frame / secondary frame docking holes 4d of the main frame / secondary frame 41 and the secondary frame 42 are correspondingly arranged and anchored by connecting bolts 43. The main frame / secondary frame docking holes 4d are symmetrically distributed at the upper and lower parts of the main frame / secondary frame docking plate 4c.

[0035] See Figure 8-9 As shown, the U-shaped frame is made of double channel steels with their openings facing outwards and arranged opposite each other. The long side double channel steel 6 of the long frame and the short side double channel steel 7 of the short frame have the same cross-sectional dimensions and are connected by the same frame connecting plate 8. The bottom plate of the short side double channel steel 7 is clamped on the upper and lower sides of the frame connecting plate 8 and fixedly connected. The width of the frame connecting plate 8 is not greater than the width of the short side double channel steel. The frame connecting plate 8 extends beyond the connecting end of the short side double channel steel 7, and the extension length is not greater than the width of the long side double channel steel 6. The connecting end of the bottom plate of the long side double channel steel 6 is clamped on the upper and lower sides of the extension and fixedly connected.

[0036] See Figure 9 As shown, the tower crane connecting ear plate 10 is fixedly connected between the bottom plate of the long side double channel steel 6 of the tower crane connecting side inserted into the hoop mother frame 41 and the adjacent frame connecting plate 8.

[0037] See Figure 4 , 6 As shown in Figure 9, in this embodiment, the outer side of the short frame 4b is also fixedly connected with reinforcing plates 9 that also pull the short double channel steel 7. The height of the reinforcing plates 9 is not greater than the height of the short frame 4b.

[0038] See Figure 3-4 As shown, the two supports of each V-shaped support rod 32 correspond to the short side frames of the hoop main frame 41 and the hoop sub-frame 42, respectively. The short side double channel steel 7 of the short side frame 4b includes an upper channel steel 71 and a lower channel steel 72. The top support plate 33 is rectangular, and the width of the top support plate is smaller than the width of the corresponding lower channel steel 72. The two top support plates 33 of the vertical V-shaped support are inserted into the corresponding lower channel steel 72. The lower channel steel 72 includes a lower channel side plate 721 and a lower channel bottom plate 722. The top support plate 33 is limited by the lower channel side plate 721 and pressed against the lower channel bottom plate 722.

[0039] In this embodiment, both the long-side double channel steel 6 and the short-side double channel steel 7 are made of No. 14 channel steel, and the main frame connecting plate 4c is made of 15mm thick steel plate; the reinforcing gusset plate 9 and the tower crane connecting ear plate 10 are both made of 10mm thick steel plate, and the connecting bolts are M22 high-strength bolts.

[0040] The construction method of this utility model is as follows: Step 1: First, based on the dimensions of the concrete frame column 1, design the dimensions of the hoop mother frame 41 and the hoop sub-frame 42 in the horizontal hoop structure 4, and then cut and weld them on site. Step 2: Based on the connection position of the attachment rod 51 on the tower crane 5, design the height and component dimensions of the vertical support structure 3; Step 3: At the corresponding support positions of the vertical support structure 3, insert threaded rebar 21 into the concrete floor 2. Step 4: Thread the rebar 21 through the hole on the base plate 31 and anchor it with a nut; Step 5: Lift the hoop mother frame 41 and hoop sub-frame 42 and place them on the two V-shaped support rods 32 on the same side of the different vertical support structures 3; Step six, then anchor the short frame 4b of the hoop mother frame 41 and the hoop daughter frame 42 together through the daughter frame butt plate 4c and connecting bolts 43; Step 7: Connect one end of the attachment rod 51 to the tower crane connecting lug 10 on the hoop frame 41, adjust the length of the attachment rod 51, and connect the other end to the tower crane 5.

Claims

1. A combined support and attachment structure for tower cranes in a concrete frame structure, characterized in that: Includes a rectangular concrete frame column (1), a concrete floor (2) below the concrete frame column (1), and a combined attachment device. The combined attachment device includes a vertical support structure (3) and a horizontal hoop structure (4). The vertical support structure (3) is supported between the bottom surface of the horizontal hoop structure (4) and the top surface of the concrete floor (2). It includes two vertical V-shaped supports parallel to the sides of the concrete frame column (1). Each vertical V-shaped support includes a base plate (31), a V-shaped support rod (32), and a top support plate (33). The base plate (31) rests on the concrete floor (2). The bottom end of the V-shaped support rod (32) is fixedly connected to the top surface of the base plate (31). The bottom surface of the top support plate (33) is fixedly connected to the top of the V-shaped support rod (32). The top surfaces of the top support plates (33) of all vertical V-shaped supports are flush. The horizontal hoop structure (4) is a steel rectangular frame whose inner wall shape is adapted to the outer wall shape of the concrete frame column (1). The inner wall of the horizontal hoop structure (4) is close to and surrounds the outer wall surface of the concrete frame column (1). The bottom surface of the steel rectangular frame is located on the same plane, and the top support plates (33) of all vertical V-shaped supports are on this plane. The horizontal hoop structure (4) is composed of a hoop mother frame (41) adjacent to the tower crane (5) and a hoop sub-frame (42) away from the tower crane (5). The hoop mother frame (41) is also provided with a tower crane connecting ear plate (10) that is vertically inserted into the middle of the outer wall of the hoop mother frame (41) and fixedly connected to it. The attachment rod (51) of the tower crane (5) is fixedly connected to the horizontal hoop structure (4) through the tower crane connecting ear plate (10).

2. The tower crane combined support attachment structure for a concrete frame structure according to claim 1, characterized in that: The vertical V-shaped support is set in the center of the left and right sides of the non-tower crane connection side of the concrete frame column (1).

3. The tower crane combined support attachment structure for a concrete frame structure according to claim 1, characterized in that: Holes are made at both ends of the base plate (31), and the holes are anchored to the concrete floor (2) by threaded anchor bars (21) inserted into the concrete floor (2) and nuts.

4. The tower crane combined support attachment structure for a concrete frame structure according to claim 1, characterized in that: Both the main frame (41) and the sub-frame (42) are U-shaped frames. The U-shaped frame includes a long frame (4a), short frames (4b) that are symmetrically and vertically fixed to both ends of the long frame (4a), and a sub-frame docking plate (4c). The sub-frame docking plate (4c) is fixedly connected to the end face of the short frame (4b). Its inner wall surface is flush with the inner wall surface of the short frame (4b). Its width is equal to that of the corresponding side short frame (4b). Its vertical dimension exceeds the vertical cross-sectional dimension of the corresponding side short frame (4b). The excess part is provided with a sub-frame docking hole (4d). The docking surfaces of the sub-frame docking plates (4c) of the main frame (41) and the sub-frame (42) are in close contact. At the same time, the sub-frame docking holes (4d) of the main frame (41) and the sub-frame (42) are correspondingly set and anchored by connecting bolts (43).

5. The tower crane combined support attachment structure for a concrete frame structure according to claim 4, characterized in that: The U-shaped frame is made of double channel steel with the opening facing outwards and arranged opposite each other. The cross-sectional dimensions of the long double channel steel (6) of the long frame and the short double channel steel (7) of the short frame are the same and are connected by the same frame connecting plate (8). The bottom plate of the short double channel steel (7) is clamped on the upper and lower sides of the frame connecting plate (8) and fixedly connected. The width of the frame connecting plate (8) is not greater than the width of the short double channel steel. The frame connecting plate (8) extends out of the connecting end of the short double channel steel (7) and the extension length is not greater than the width of the long double channel steel (6). The connecting end of the bottom plate of the long double channel steel (6) is clamped on the upper and lower sides of the extension and fixedly connected.

6. The tower crane combined support attachment structure for a concrete frame structure according to claim 5, characterized in that: The outer side of the short frame (4b) is also fixedly connected with reinforcing plates (9) that also pull the short side double channel steel (7), and the height of the reinforcing plates (9) is not greater than the height of the short frame (4b).

7. The tower crane combined support attachment structure for a concrete frame structure according to claim 5, characterized in that: The two supports of each V-shaped support rod (32) correspond to the short side frame of the hoop mother frame (41) and the hoop sub-frame (42), respectively. The short side double channel steel (7) of the short side frame (4b) includes the upper channel steel (71) and the lower channel steel (72). The top support plate (33) is rectangular. The width of the top support plate is smaller than the width of the corresponding lower channel steel (72). The two top support plates (33) of the vertical V-shaped support are inserted into the corresponding lower channel steel (72). The lower channel steel (72) includes the lower channel side plate (721) and the lower channel bottom plate (722). The top support plate (33) is limited by the lower channel side plate (721) and pressed against the lower channel bottom plate (722).

8. The tower crane combined support attachment structure for a concrete frame structure according to claim 5, characterized in that: The tower crane connecting ear plate (10) is fixedly connected between the bottom plate of the long side double channel steel (6) of the tower crane connecting side and the adjacent frame connecting plate (8).

9. The tower crane combined support attachment structure for a concrete frame structure according to claim 4, characterized in that: The mating holes (4d) of the mother and daughter frame are symmetrically distributed on the upper and lower parts of the mating plate (4c) of the mother and daughter frame.

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