Irregular steel support area disc type support frame

Abstract

The application relates to the technical field of building construction, and particularly discloses an irregular steel support area disc-buckle type support frame, which comprises a lower disc-buckle frame, an upper disc-buckle frame and a conversion layer. The conversion layer is provided with a U-shaped connecting device and a fixing piece; the U-shaped connecting device fixes the vertically-crossed lower I-beam and the upper I-beam through a U-shaped wire, a backing plate, double nuts and a wooden wedge to prevent relative sliding; the fixing piece locks the clamping piece to the flange of the upper I-beam through clamping bolts, and realizes accurate positioning through the socket connection between the positioning cylinder and the vertical rod of the upper disc-buckle frame. The double fastening improves the anti-sliding capacity of the support frame, and is suitable for the construction demand of the complex irregular steel support area. The patent aims to solve the problem that relative sliding may occur between the longitudinal and transverse aluminum beams of the existing support frame.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a disc-type support frame for irregular steel support areas. Background Technology

[0002] A renovation project is located adjacent to an existing subway tunnel section and station hall. The existing subway tunnel section and station hall have foundation pits, and prestressed steel supports with a diameter of 609mm and a thickness of 3mm are used for foundation pit support, including diagonal braces and horizontal steel supports, which are respectively used to support the interlocking pile cap beams and pile surfaces. Due to the limitations of the foundation pit's angle, the length, inclination angle, and horizontal direction of the existing steel supports are inconsistent, and the spacing in the plane is uneven, resulting in a complex support structure.

[0003] A new structure needs to be built above the foundation pit. This new structure includes beams with excessively large cross-sections, the largest of which is 2.1m. At a height of 2.8m, considering construction loads, the line load reaches 203.75kN / m, while the design beam clearance is only 1.25m to 1.35m. Calculations show that if conventional support scaffolding with uprights directly supporting the beams is used, the longitudinal spacing of the support scaffolding along the beams is 0.6m, and the transverse spacing is 0.6m (0.3m locally). The support scaffolding erection must cross irregular steel support areas within the foundation pit. The fixed modularity of the uprights in the disc-lock scaffolding (following a standardized dimensional system, with all component dimensions, spacing, and connection methods designed according to uniform proportions or multiples) leads to significant conflicts between the scaffolding uprights and the structural steel supports during construction. Therefore, the support scaffolding cannot form the effective support system typically achieved with uprights directly supporting the beams, failing to meet the construction requirements for formwork projects exceeding a certain level of risk.

[0004] A search revealed Chinese Utility Model Patent Publication No. CN214034900U, which discloses a double-layer disc fastener stacked support system, comprising a lower disc fastener frame, longitudinal aluminum beams, transverse aluminum beams, and an upper disc fastener frame. The top of each lower upright of the lower disc fastener frame is connected to a U-shaped bracket. The longitudinal aluminum beams are spaced laterally on top of adjacent longitudinally connected U-shaped brackets. The transverse aluminum beams are spaced laterally on top of adjacent transversely connected longitudinal aluminum beams. The bottom of each upper upright of the upper disc fastener frame is connected to an inverted U-shaped bracket, which is supported on top of the transverse aluminum beams.

[0005] Existing technology combines two types of disc-lock systems with different upright spacing by using longitudinal and transverse aluminum beams as transition layers for the disc-lock frame, thus solving the problem that the support frame cannot form an effective support system with uprights directly pointing upwards.

[0006] However, the existing technology has special shapes and structures for the longitudinal and transverse aluminum beams, which require special customization and increase the cost of the main materials. Furthermore, there are no connection measures between the longitudinal and transverse aluminum beams. If the longitudinal and transverse aluminum beams slide relative to each other, it will affect the stability of the overall support frame and pose a safety hazard. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a disc-locked support frame for irregular steel support areas, which solves the problem of relative sliding that may occur between the longitudinal and transverse aluminum beams of existing support frames due to the lack of fixed connections.

[0008] To solve the above problems, the technical solution adopted by this utility model is: an irregular steel support area disc buckle support frame, including a lower disc buckle frame, an upper disc buckle frame, and a transition layer;

[0009] The conversion layer includes a U-shaped connecting device that fixes the lower I-beam and the upper I-beam together, and a fixing component fixed to the bottom of the upper disc buckle frame for positioning the upper disc buckle frame;

[0010] The U-shaped connecting device includes a pad, a washer, a double nut, a U-shaped wire, and a wooden wedge. One U-shaped wire is provided on each side of the upper I-beam, passing through the lower I-beam from bottom to top. The U-shaped wires are connected together by a pad that is set perpendicular to the longitudinal direction of the upper I-beam. The U-shaped wires and the pad are fixed by the double nut. A washer is added between the double nut and the pad. The U-shaped wires are tightened between the I-beam and the wooden wedge.

[0011] The fastener includes a fastener, a fastening bolt, and a positioning cylinder; one end of the fastener has a hook and is fastened to the flange of the upper I-beam, and the other end of the fastener is fixedly connected to the other flange of the upper I-beam by the fastening bolt; a positioning cylinder is fixed at the center of the upper surface of the fastener.

[0012] The lower layer disc buckle frame has its top support center fixed to the lower layer I-beam;

[0013] The uprights of the upper disc buckle frame are inserted into the positioning cylinder for fixation.

[0014] The beneficial effects of this solution are as follows: 1. This application uses I-beams as the transfer layer, eliminating the need for customized complex longitudinal and transverse aluminum beams, thus reducing the cost of main materials; 2. By using BIM technology to simulate and analyze the layout of the lower-level scaffolding, the spacing between the uprights and the longitudinal and transverse struts of the lower-level scaffolding are optimized to ensure that there is no collision between the lower-level scaffolding and the existing steel supports during erection; 3. This application uses a U-shaped connecting device to fix the upper and lower I-beams together, enhancing the stability of the transfer layer.

[0015] Furthermore, both the upper and lower I-beams are made of I-beams with a height of 160mm.

[0016] Furthermore, the U-shaped connecting device uses a size of 230mm. 10mm steel pad, 50mm in size 3mm square gasket, U-shaped wire is round steel with a diameter of 18mm. Attached Figure Description

[0017] Figure 1 This is a perspective view of the simulated support frame used in this utility model.

[0018] Figure 2 This is a perspective view of the connection of the conversion layer of this utility model.

[0019] Figure 3 This is a detailed drawing of the fastener of this utility model.

[0020] The reference numerals in the accompanying drawings of the instruction manual include: 1. Lower I-beam; 2. Upper I-beam; 3. U-shaped connecting device; 32. Pad; 31. Washer; 33. Double nut; 34. U-shaped wire; 35. Wooden wedge; 4. Fastener; 41. Fastener; 42. Fastening bolt; 43. Positioning cylinder; 9. Lower disc buckle frame; 8. Transfer layer; 7. Upper disc buckle frame. Detailed Implementation

[0021] The following detailed description illustrates the specific implementation method:

[0022] As attached Figure 1-3 As shown: An irregular steel support area disc buckle support frame includes a lower disc buckle frame 9, an upper disc buckle frame 7, and a transition layer 8;

[0023] The conversion layer 8 includes a U-shaped connecting device 3 that fixes the lower I-beam 1 and the upper I-beam 2, and a fixing member 4 fixed to the bottom of the upper disc buckle frame 7 for positioning the upper disc buckle frame 7.

[0024] The U-shaped connecting device 3 includes a pad 32, a washer 31, a double nut 33, a U-shaped wire 34, and a wooden wedge 35. One U-shaped wire 34 is provided on each side of the upper I-beam 2, passing through the lower I-beam 1 from bottom to top. The U-shaped wire 34 is connected together by the pad 32, which is arranged vertically to the upper I-beam 2. The U-shaped wire 34 and the pad 32 are fixed by the double nut 33. A washer 31 is added between the double nut 33 and the pad 32. The U-shaped wire 34 is tightened between the I-beam and the wooden wedge 35.

[0025] The fastener 4 includes a fastener 41, a fastening bolt 42, and a positioning inner cylinder; one end of the fastener 41 has a hook and is fastened to the flange of the upper I-beam 2, and the other end of the fastener 41 is fixedly connected to the other flange of the upper I-beam 2 by the fastening bolt 42; a positioning cylinder 43 is fixed at the center of the upper surface of the fastener 41.

[0026] The lower I-beam 1 is placed at the center of the top support of the lower disc buckle frame 9;

[0027] The upright of the upper disc buckle frame 7 is inserted into the positioning cylinder 43 for fixation. Detailed implementation method:

[0029] BIM technology was used to simulate and analyze the layout of the lower-level disc-lock scaffold 9, and to optimize the spacing between the uprights and the step distance of the longitudinal and transverse bars during the erection of the lower-level disc-lock scaffold 9, so as to ensure that there is no collision between the lower-level disc-lock scaffold 9 and the existing steel support during the erection.

[0030] The lower layer disc-lock frame 9 is erected according to the design height (the design height specifically refers to the height at which the existing steel support can no longer affect the erection of the transfer layer 8). The lower layer I-beam 1 is placed at the center of the top support of the lower layer disc-lock frame 9, ensuring that the lower layer I-beam 1 is horizontally aligned and fixed inside the top support.

[0031] A U-shaped connecting device 3 is installed at the intersection of the lower I-beam 1 and the upper I-beam 2, which have a height of 160mm. The specific steps include:

[0032] S1: Insert two 18mm diameter U-shaped steel wires 34 from the bottom up into the lower I-beam 1 from both sides of the upper I-beam 2. When inserting the U-shaped wires 34 from top to bottom, the bent part is located below the lower I-beam 1. The U-shaped wires 34 can more effectively bear the tension and avoid the screws from loosening due to gravity or vibration. Moreover, the double nuts 33 to be installed are on top, which makes it easier for construction personnel to operate and reduces the difficulty of construction and safety hazards.

[0033] S2: Install a 230mm dimension perpendicular to the longitudinal direction of the upper I-beam 2 at the top of the U-shaped wire 34. A 10mm steel pad 31 is used, and the U-shaped wire 34 and the pad 32 are fixed by double nuts 33. The distance between the double nuts 33 and the pad 32 is increased by 50mm. A 3mm square shim 31 ensures that there is no risk of relative sliding between the lower I-beam 1 and the upper I-beam 2;

[0034] S3: Insert wooden wedges 35 at the contact point between the U-shaped wire 34 and the I-beam to improve the strength of the connection.

[0035] One end of the fastener 41 with a hook is fastened to the lower surface of the flange of the upper I-beam 2, and the other end is locked to the upper surface of the other flange of the upper I-beam 2 by the fastening bolt 42.

[0036] A positioning cylinder 43 is welded to the center of the upper surface of the fastener 41. The outer diameter of the positioning cylinder 43 matches the inner diameter of the upper disc buckle frame 7 upright, ensuring that the upper disc buckle frame 7 upright can be inserted vertically.

[0037] Align the bottom of the upright of the upper disc buckle frame 7 with the positioning cylinder 43 and insert it into it. Achieve vertical fixation through the socket connection between the upright and the positioning cylinder 43. Then, erect the upper disc buckle frame 7 on the upper I-beam 2 to complete the erection of the overall support frame.

[0038] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A disc-lock support frame for irregular steel support areas, comprising a lower disc-lock frame, an upper disc-lock frame, and a transition layer, characterized in that: The conversion layer includes a U-shaped connecting device that fixes the lower I-beam and the upper I-beam together, and a fixing component fixed to the bottom of the upper disc buckle frame for positioning the upper disc buckle frame; The lower layer disc buckle frame has its top support center fixed to the lower layer I-beam; The uprights of the upper disc buckle frame are inserted into the positioning cylinder for fixation; The U-shaped connecting device includes a pad, a washer, a double nut, a U-shaped wire, and a wooden wedge. One U-shaped wire is provided on each side of the upper I-beam, passing through the lower I-beam from bottom to top. The U-shaped wires are connected together by a pad that is set vertically to the upper I-beam. The U-shaped wires and the pad are fixed by the double nut. A washer is added between the double nut and the pad. The U-shaped wires are tightened between the I-beam and the wooden wedge.

2. The irregular steel support area disc-lock type support frame according to claim 1, characterized in that: The fasteners include a fastener, a fastening bolt, and a positioning cylinder; one end of the fastener has a hook and is fastened to the flange of the upper I-beam, and the other end of the fastener is fixedly connected to the other flange of the upper I-beam by the fastening bolt; a positioning cylinder is fixed at the center of the upper surface of the fastener.

3. The irregular steel support area disc-lock type support frame according to claim 1, characterized in that: Both the upper and lower I-beams are made of I-beams with a height of 160mm.

4. The irregular steel support area disc-lock type support frame according to claim 1, characterized in that: The U-shaped connecting device uses a steel pad with a size of 230mm*10mm, a square washer with a size of 50mm*3mm, and a U-shaped wire with a diameter of 18mm round steel.

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