Tool beam connecting joint fixing device

Abstract

The utility model relates to the technical field of buildings, and discloses a tool beam connection node fixing device in order to solve the problems that in the prior art, when a tool beam is used repeatedly, the durability of materials is poor, and the safety is low. Comprising bolt connecting plates arranged between a tool steel beam and anchor points, and each bolt connecting plate comprises a steel beam bottom plate fixed to a tool for a long time and a building connecting plate connected with a building in a matched mode; the steel beam bottom plate and the building connecting plate are fixed through high-strength bolts, a pin groove is further formed between the steel beam bottom plate and the building connecting plate, and an anti-shearing positioning pin used for fixing the building connecting plate and the steel beam bottom plate is arranged in the pin groove. Through anchoring combination of the high-strength bolts and the bolt connecting plates, the connection requirement of the tool beam anchor point and the building joint is met, and the joint force transmission requirement is met; and the risks caused by plate damage and poor welding quality due to welding seam planing are avoided, and meanwhile, the turnover utilization rate is high.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a tool beam connection node fixing device. Background Art

[0002] Internal climbing tower cranes are usually selected and matched with appropriate building spaces and load-bearing structures, and through the repeated circulation of supporting steel beams (tool beams), the tower crane can climb as a whole by fixing the tower body. They are widely used in more demanding scenarios. Internal climbing tower cranes are different from external tower crane support systems. They generally rely on two horizontal supporting steel beams (tool beams) to span the upper surface of beams, columns, shear walls or the upper surface of their extensions (corbels). This node must ensure that the internal climbing tower crane can effectively transfer pressure to the shear wall through the tool beams. At the same time, it must also ensure that the connection position can withstand the pull-out force and lateral shear force generated by the tower crane on the connection node. The traditional method is to set a connecting base plate at the corresponding position at the bottom of the tool beam for welding to the anchor plate, steel beam or the upper surface of the corbel. However, as the tool beam is used more frequently, its connecting base plate is often welded and the welds are gouged during the continuous use of the beam, resulting in poor material durability and indirectly affecting the safety of use.

[0003] Therefore, there is an urgent need for a node structure using bolt connections that can overcome the adverse effects of welding. Utility Model Content

[0004] The purpose of the utility model is to provide a tool beam connection node fixing device to solve the problem in the prior art that the tool beam is easily prone to poor material durability and low safety when it is used many times.

[0005] To achieve the above-mentioned purpose, the specific technical solution of a tool beam connection node fixing device of the present invention is as follows:

[0006] A tool beam connection node fixing device includes a bolt connection plate arranged between the tool steel beam and each anchor point, the bolt connection plate includes a steel beam bottom plate permanently fixed to the tool and a building connection plate matched with the building; the steel beam bottom plate and the building connection plate are fixed by high-strength bolts, and a pin groove is also provided between the steel beam bottom plate and the building connection plate, and a shear locating pin for fixing the building connection plate and the steel beam bottom plate is provided in the pin groove.

[0007] Preferably, the steel beam bottom plate and the tool steel beam, the building connection plate and the anchor point are all fixed by welding.

[0008] Preferably, the anchor point includes: a corbel, a structural steel beam or an embedded part.

[0009] Preferably, four bolt holes are provided on the bolt connection plate, and the high-strength bolts are used to fix the steel beam bottom plate and the building connection plate through the bolt holes.

[0010] Preferably, the pin groove in the bottom plate of the steel beam is a groove with a relatively deep opening, and the pin groove in the building connection plate is a through-going arrangement.

[0011] Preferably, the bolt holes of the steel beam bottom plate are set to be through, and the bolt holes of the building connection plate are set to be grooves with deeper openings.

[0012] Preferably, the welds are all made by CO2 gas shielded welding.

[0013] The utility model provides a tool beam connection node fixing device with the following advantages:

[0014] Through the anchoring combination of high-strength bolts and bolt connection plates, the connection requirements between the tool beam anchor point and the building node are completed, meeting the node force transmission needs; it has strong adaptability and can be matched and adjusted specifically for connections of different buildings; it is highly safe and avoids the risks of plate damage and poor welding quality caused by gouging welds; it has a high turnover rate and is simple to construct, with only one person using a torque wrench to complete installation and pre-tightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic cross-sectional view of the structure provided by the utility model;

[0016] Figure 2 A top view of the structure provided by the utility model;

[0017] Figure 3 A cross-sectional view of a node at a corbel provided by the present invention;

[0018] Figure 4 A cross-sectional view of a node of an I-beam provided by the present invention;

[0019] Figure 5 This is a top view of the bolt connection plate provided by the utility model.

[0020] In the figure: 1. Tool steel beam; 2. Bolt connection plate; 21. Steel beam bottom plate; 22. Building connection plate; 3. Anchor point; 4. Wall; 5. Embedded parts; 6. I-beam; 7. High-strength bolts; 71. Bolt hole; 8. Shear locating pin; 81. Pin groove. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] See Figures 1 to 5The utility model provides a tool beam connection node fixing device for construction, a tool beam connection node fixing device, comprising a bolt connection plate 2 arranged between a tool steel beam 1 and each anchor point 3, the bolt connection plate 2 comprising a steel beam bottom plate 21 permanently fixed to the tool and a building connection plate 22 matched with the building; the steel beam bottom plate 21 and the building connection plate 22 are fixed by high-strength bolts 7, and a pin groove 81 is further provided between the steel beam bottom plate 21 and the building connection plate 22, wherein a shear locating pin 8 for fixing the building connection plate 22 and the steel beam bottom plate 21 is provided in the pin groove 81.

[0023] Furthermore, the anchor points include but are not limited to corbels, structural steel beams or embedded parts.

[0024] like Figure 1 and 2 As shown, a corbel is used as the anchor point 3. The left side of the lower end of the tool steel beam 1 is the corbel 3, and the right end is the I-beam 6. Embedded parts 5 are pre-installed in the wall 4, and the corbel is fixed to the wall 4 through the embedded parts 5. Before installation, the tool steel beam 1 has the steel beam bottom plate 21 in the bolt connection plate 2 welded to the tool steel beam, and the building connection plate 22 is welded to the corbel. Then, the shear locating pins 8 and high-strength bolts 7 are aligned and fixed together. Each node of the tool steel beam 1 consists of two bolt bottom plates, four high-strength bolts 7, and one shear locating pin 8. The fixation of the foundation steel beam, the anchor point 3, the I-beam 6 and other nodes is completed by the combined fixing method.

[0025] Furthermore, the embedded parts 5, the anchor points 3 and the tool steel beam 1 are all fixed by welding, and the welds are all made by CO2 gas shielded welding.

[0026] Welding secures the connection between the embedded component 5, anchor point 3, and tool steel beam 1 into a continuous, integrated unit, significantly enhancing the strength of the joint. This continuous connection can withstand greater forces and torques than other mechanical connections, reducing the risk of connection failure due to overload or external forces. This continuous connection not only improves the strength of individual connection points but also contributes to the stability of the entire structure, as welded connections better transmit and distribute stress, resulting in a more uniform and consistent response to stress across the entire structure.

[0027] As a highly efficient welding method, CO2 gas shielded welding provides stable heat input during the welding process, ensuring uniform welds with good penetration, further enhancing the load-bearing capacity and damage resistance of the welded joint. CO2 gas shielded welding is a highly efficient welding method that can save labor and time costs, further optimizing project costs.

[0028] During the structural construction process, the building connecting plate 22 fixed to the bottom of the tool beam is welded and fixed during the tool beam production and processing stage. The other bolt connecting plate 2 is positioned and welded according to the structural position during the on-site construction stage. When transporting and installing the tool beam, it only needs to be anchored to the structure through shear locating pins 8 and high-strength bolts 7.

[0029] Furthermore, the diameter of the pin hole of the bolt connection plate 2 is 70mm, the diameter of the shear locating pin 8 is 70-0.03mm, the length is 85mm, the length entering the steel beam bottom plate 21 is 35, and the length entering the building connection plate 22 is 50mm. The length of the bolt connection plate 2 is set to 600mm and the width is 350mm. The steel beam bottom plate 21 is provided with four symmetrically arranged bolt holes 71 for passing the high-strength bolts 7. The center of the steel beam bottom plate 21 is provided with a pin groove 81 for the shear locating pin 8.

[0030] The tight tolerance fit between the pin hole and the shear locating pin 8 (a pin hole with a diameter of 70 mm and a shear locating pin 8 with a diameter of 70-0.03 mm) ensures the accuracy of the connection, reduces assembly errors, and ensures the correct installation position of the structural components, thereby enhancing the accuracy and reliability of the overall structure. The larger size of the bolt connection plate 2 (length 600 mm, width 350 mm) provides sufficient area for arranging bolts and shear locating pins 8, which helps to disperse stress and improve the stability and load-bearing capacity of the connection. At the same time, the use of standardized and modular designs (such as bolt connection plates 2 of uniform size and accurately positioned shear locating pins 8) not only facilitates rapid installation during construction, but also facilitates the future replacement and maintenance of damaged or worn parts.

[0031] The specific construction steps of this utility model are:

[0032] First, before pouring concrete on the wall 4, place the embedded parts 5. Then, pay attention to the orientation markings on the steel beam. After the pier and support frame are locked together, weld them to the steel beam. After leveling the entire structure, weld the wall 4, horizontal embedded parts, anchor points 3, and building connection plates 22 to secure them. Before securing the steel beam, secure the steel beam base plate 21 to each node of the steel beam. Then, place the steel beam on the anchor points 3 and the upper end of the I-beam 6. After leveling, secure it with high-strength bolts 7 and shear dowel pins 8. Only the shear dowel pins 8 and high-strength bolts 7 are required to complete the anchoring to the structure. This completes the connection requirements between the tool beam anchor point and the building node, meeting the node force transmission requirements.

[0033] It should be noted that the bolt connection plate 2 fixed to the bottom of the tool beam is welded and fixed during the production and processing stage of the tool beam, and the other bolt connection plate 2 is positioned and welded according to the structural position during the on-site construction stage.

[0034] During welding, all welds are welded using CO2 gas shielded welding, and the welds are inspected for surface flaw detection. The welding quality meets the first-level standard specified in "GD11345".

[0035] At the same time, the welding between the building connection plate 22 and the anchor point 3 can be recycled as needed, and when used, it is only necessary to remove the weld before turning it over next time.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tool beam connection node fixing device, characterized in that: The invention comprises a bolt connection plate (2) arranged between a tool steel beam (1) and each anchor point (3), wherein the bolt connection plate (2) comprises a steel beam bottom plate (21) permanently fixed to the tool and a building connection plate (22) matched with the building; the steel beam bottom plate (21) and the building connection plate (22) are fixed by high-strength bolts (7); a pin groove (81) is further provided between the steel beam bottom plate (21) and the building connection plate (22); and a shear locating pin (8) for fixing the building connection plate (22) and the steel beam bottom plate (21) is provided in the pin groove (81).

2. The tool beam connection node fixing device according to claim 1, characterized in that: The steel beam bottom plate (21) and the tool steel beam (1), the building connection plate (22) and the anchor point (3) are all fixed by welding.

3. The tool beam connection node fixing device according to claim 1, characterized in that: The anchor point (3) includes: a corbel, a structural steel beam or an embedded part.

4. The tool beam connection node fixing device according to claim 1, characterized in that: Four bolt holes (71) are provided on the bolt connection plate (2), and the high-strength bolts (7) are used to fix the steel beam bottom plate (21) and the building connection plate (22) through the bolt holes (71).

5. The tool beam connection node fixing device according to claim 1, characterized in that: The pin slot (81) in the steel beam bottom plate (21) is a groove arrangement, and the pin slot (81) in the building connection plate (22) is a through arrangement.

6. The tool beam connection node fixing device according to claim 4, characterized in that: The bolt holes (71) of the steel beam bottom plate (21) are arranged to penetrate, and the bolt holes (71) of the building connection plate (22) are arranged to be grooves.

7. The tool beam connection node fixing device according to claim 2, characterized in that: All welds are made with CO2 gas shielded welding.

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