Stress structure suitable for reverse tensioning of inhaul cable

Abstract

The utility model discloses a stress structure suitable for reverse tensioning of an inhaul cable, and relates to the technical field of buildings. Comprising a main body steel structure, reserved round holes and M42 high-strength bolts and nuts, the reserved round holes are formed in the main body steel structure, and the M42 high-strength bolts and nuts are lined in the reserved round holes. According to the utility model, the problem of potential safety hazards caused by the fact that the welding seam strength cannot meet the tension stress is solved, the structural stability of the concentrated stress part is ensured, and the safety and the stability of the tension process of the inhaul cable curtain wall are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of building technology, and particularly relates to a stress structure suitable for reverse tensioning of cable stays. Background Technique

[0002] With the continuous development of the construction industry, many super high-rise commercial complexes and office buildings have emerged. As a key part of their decoration, curtain walls have been rapidly developed and applied in recent years. Among them, cable stay curtain walls, as a modern building technology, are widely used in various building types with their unique aesthetic effects and excellent structural performance.

[0003] Cable stay curtain walls can achieve large-span design, reduce intermediate support structures, thereby making the interior space of the building more open and flexible, and providing better visual effects and usage experiences.

[0004] Cable tensioning is the main control process in the construction of cable stay curtain walls. It mainly uses the tension of the cable stays to bear and transfer external wind loads and seismic loads to ensure the stability and safety of the entire system. In previous engineering practices, cable tensioning equipment was usually located outside the steel structure columns for tensioning, and this tensioning method is called forward tensioning.

[0005] Affected by the structure, when there are conflicts between the floor slab of the main concrete structure and the tensioning equipment and tooling parts, the structure needs to be set back to meet the tensioning conditions. The traditional tensioning method no longer meets the requirements, and secondary tensioning cannot be carried out during the subsequent maintenance stage. In addition, during the structural construction stage, when designing and reserving the cable stay reverse tensioning fixing device in advance, the traditional method is usually to set threaded screw threads on the steel column, and the anti-tensile force is provided by tightening the cable stay screw rod and the steel column. However, this method is limited by the weld strength between the fixing parts and the steel structure and cannot meet the requirements of high-strength tensioning stress, posing potential safety hazards. Content of the Utility Model

[0006] Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a stress structure suitable for reverse tensioning of cable stays, eliminating the potential safety hazards caused by the weld strength not being able to meet the tensioning stress, and ensuring the structural stability at the concentrated stress point, providing guarantee for the safety and stability of the cable stay curtain wall tensioning process.

[0007] To achieve the above purpose, the utility model is realized through the following technical solutions: A stress structure suitable for reverse tensioning of cable stays includes a main steel structure, reserved round holes, and M42 high-strength bolt nuts. Reserved round holes are provided on the main steel structure, and M42 high-strength bolt nuts are lined inside the reserved round holes.

[0008] Preferably, the M42 high-strength bolt nuts are arranged in the inner wall of the cavity of the main steel structure.

[0009] Preferably, the M42 high-strength bolt nut is connected to the connecting rod of the reverse tensioning tooling part.

[0010] Advantages of the present utility model: The structure of the present utility model is reasonably designed. According to the installation instructions of the tensioning equipment, large-sized M42 high-strength bolt nuts are arranged on the inner wall of the main steel structure cavity. The connecting rod of the reverse tensioning tooling part is connected to the nut inside the steel column cavity through the reserved hole of the steel structure column, and the tooling part and the hydraulic equipment are installed to achieve reverse tensioning. After changing the original method of providing tensile force through the thread provided on the reserved hole of the steel column to this design, the tensile force is finally provided by the extrusion force between the nut and the inner wall of the steel column. These uniformly customized nuts have high precision and strength, effectively improving the installation effect of the tensioning equipment and ensuring the construction safety during the tensioning process.

[0011] Using this force-bearing structure practice, it assists the main structure in bearing force during the cable tensioning process, avoiding adverse effects on the structure. At the same time, due to the superiority of this method, the construction difficulty is reduced and the construction safety is ensured, which has good reference and popularization effects for similar projects that require reverse tensioning, achieving remarkable safety and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments;

[0013] Figure 1 It is the elevation view of the present utility model;

[0014] Figure 2 It is the plan view schematic of the present utility model. SPECIFIC EMBODIMENTS

[0015] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Referring to Figure 1-2 , the following technical solution is adopted in this specific embodiment: A force-bearing structure applicable to cable reverse tensioning, including a main steel structure 1, a reserved round hole 2, and an M42 high-strength bolt nut 3. A reserved round hole 2 is provided on the main steel structure 1, and the reserved round hole 2 is lined with an M42 high-strength bolt nut 3.

[0017] It should be noted that the M42 high-strength bolt nut 3 is arranged in the inner wall of the cavity of the main steel structure 1.

[0018] In addition, the M42 high-strength bolt nut 3 is connected to the connecting rod of the reverse tensioning tooling part.

[0019] The force-bearing structure practice adopted in this specific embodiment has the following characteristics:

[0020] 1. Short processing cycle and high efficiency: For conventional reverse tensioning, threading needs to be done within the wall thickness area of the steel structure. If the steel component processing factory does not have this process, the steel structure needs to be transported to a factory with this process for threading and then returned to the steel component factory for further processing.

[0021] 2. Reduce the processing difficulty of steel structures: When using conventional threading on the inner wall of steel structures, due to the threading machinery and model, there may be a mismatch between the threaded portion and the connecting rod of the tensioning tooling, so it may occur that "the threaded portion cannot be used after threading", and the on-site tensioning equipment cannot be installed and tensioned as expected, resulting in the stagnation of on-site construction.

[0022] 3. Simple construction: Nuts are set on the inner wall of the steel structure as the fixed points for reverse tensioning. It only needs to ensure that the nuts do not fall off during the installation of the tensioning equipment. There is no high-strength welding strength requirement, and the processing and construction processes are simple and convenient, improving the construction efficiency.

[0023] 4. The size of the nut can be calculated according to the size of the tensioning equipment and the reserved hole size, ensuring the rationality of the design and the feasibility of the construction.

[0024] 5. There are many procurement channels for nuts, low cost, and easy installation.

[0025] 6. When the wall thickness of the steel structure cannot meet the tensioning requirements, the built-in nut can also be used as a reinforcement measure.

[0026] The force-bearing structure method of the cable reverse tensioning in this specific implementation is simple to implement, simplifies professional problems, uses common materials to replace the structure method that can only be achieved by high-precision processing, perfectly realizes its original functions and improves construction safety, and has high application value and extensive social benefits.

[0027] The force-bearing structure method of the cable reverse tensioning in this specific implementation uses common materials, saving material costs while realizing the functions of the method. At the same time, this structure method avoids the secondary transportation cost caused by the inability of the steel structure processing factory to meet the precision requirements. In addition, this method makes the cable reverse tensioning safer and more reliable, avoiding the labor cost and measure cost caused by the process delay at the tensioning location due to structural conflicts in the forward tensioning, and has high economic benefits.

[0028] Due to avoiding the secondary transportation process caused by the lack of production capacity in the processing factory, it reduces carbon emissions during the construction process and makes a positive contribution to the environmental protection and sustainable development of the construction industry.

[0029] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A force-bearing structure suitable for reverse tensioning of cables, characterized in that: The invention comprises a main steel structure (1), a reserved circular hole (2) and an M42 high-strength bolt and nut (3). The main steel structure (1) is provided with a reserved circular hole (2), and the reserved circular hole (2) is lined with an M42 high-strength bolt and nut (3).

2. A force-bearing structure suitable for reverse tensioning of cables according to claim 1, characterized in that: The M42 high-strength bolts and nuts (3) are arranged in the inner wall of the cavity of the subject steel structure (1).

3. A force-bearing structure suitable for reverse tensioning of cables according to claim 1, characterized in that: The M42 high-strength bolts and nuts (3) are connected to the connecting rod of the reverse tensioning fixture.

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