A rope-type self-resetting shape memory alloy shock-isolation and shock-absorbing support

Abstract

The invention discloses a rope type self-reset shape memory alloy seismic isolation and seismic reduction support, and belongs to the technical fields of an architectural structure and mechanical engineering. A transverse anti-seismic cylinder tube (1), a transverse anti-seismic sliding passage (2), a connecting rod (3), a vertical anti-seismic cylinder tube (4), a vertical anti-seismic piston (5), a common biasing spring (6), a transverse anti-seismic alloy wire rope (7), a vertical anti-seismic alloy wire rope (9) and a fixing upright post (13) are added on the basis of an original structure. According to the rope type self-reset shape memory alloy seismic isolation and seismic reduction support disclosed by the invention, the self-reset capacity in the transverse direction is obtained while the self-reset capacity in the vertical direction is obtained, the self-reset capacity in the transverse direction and the self-reset capacity in the vertical direction are reasonably combined, and multidirectional seismic isolation and seismic reduction is obtained while the energy dissipation stability of multidirectional seismic isolation and seismic reduction of the rope type self-reset shape memory alloy seismic isolation and seismic reduction support is increased; meanwhile, the use is wide, the rope type self-reset shape memory alloy seismic isolation and seismic reduction support not only can be independently used as a tensile and compressive damper, but also can be independently used as a shear-resisting damper, and the rope type self-reset shape memory alloy seismic isolation and seismic reduction support has a wide market prospect.

Description

technical field [0001] The invention relates to a shock-isolation and shock-absorbing support, in particular to a rope-type self-resetting shape-memory alloy shock-isolation and shock-absorbing support, which belongs to the technical fields of building structures and mechanical engineering. Background technique [0002] In recent years, shock-isolation and shock-absorbing bearings have been widely used in various important symbolic structural fields such as construction, machinery, aerospace, transportation, and sports equipment. The materials and design technologies selected for such high-performance bearings and manufacturing processes are critical. [0003] For vibration-isolation and shock-absorbing bearings, the forms adopted at home and abroad can be divided into two categories: rubber bearings and sliding vibration-isolation bearings. Among them, the natural interlayer rubber bearing has a large vertical stiffness, and the vertical deformation is small when bearing t...

AI Technical Summary

Problems solved by technology

Although the lead core isolation rubber bearing with better development prospects has a relatively ideal vertical stiffness and has a certain ability to consume earthquake energy, its safety, durability and long-term stability need to be improved, especially after the earthquake. The structural reset ability is very poor; the sliding seismic isolation bearing can effectively limit the transmission of seismic energy to the upper part and the feedback to the lower part through relative sliding motion and friction energy consumption. This method is reliable in force, and the construction is not difficult. The problem of rust prevention and damage replacement of parts, but its biggest shortcoming is that an additional reset mechanism device is required, otherwise the structure cannot be reset after the earthquake

[0004] It can be seen from the above that, as an important parameter of seismic isolation and shock absorbing bearings, the strength of its damping energy dissipation characteristics and recoverable deformation capacity has always been a difficult point in the field of earthquake resistance of engineering structures. At the same time, some existing bearings in engineering are in There are some limitations in the application: such as aging and durability issues, long-term work reliability, renewal and replacement issues after strong earthquakes, and failure to restore after strong earthquakes, etc. Therefore, the lead core vibration-isolation rubber bearing Or use new materials to reinforce the rear support, natural interlayer vibration-isolation rubber bearing, simple ordinary metal bearing and sliding bearing and other traditional vibration-isolation and vibration-absorbing methods are difficult to achieve multi-directional intelligent self-resetting vibration-isolation and vibration control

[0006] At present, in order to avoid the limitations in the application of this type of support, one of the solutions is to find new materials for redesign. The Chinese patent "A kind of vibration damping device for engineering structures" published on April 14, 2010 Nickel-titanium-based shape memory alloy" (patent number: ZL200910036260, announcement number: CN101693964, the new material used in the technical proposal is a nickel-titanium-based shape memory alloy, which has a simple structure and remarkable shock resistance, but its scope of application is narrow and its cost is too high. Gao; the Chinese patent "Intelligent shock-isolation and shock-absorbing nickel-titanium alloy support for large-span space structure (grid frame)" announced on March 20, 2013 (patent number: ZL201210562576, announcement number: CN102979181), the device The material used is also a nickel-titanium-based shape memory alloy, which only has the self-resetting ability in the vertical direction, so it cannot achieve multi-directional shock isolation and shock absorption, and the use is relatively single, and there is no wide market

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