Energy-dissipation self-adaptive anti-seismic anchor rope structure and implementation method thereof

Abstract

The invention discloses an energy-dissipation self-adaptive anti-seismic anchor rope structure which comprises a spring device, a sleeve type metal damper, an anchorage device, an anchorage device clamping piece, a bearing plate and a steel strand. The energy-dissipation self-adaptive anti-seismic anchor rope structure is characterized in that the spring device is arranged between the bearing plate on the end part of the anchor rope and the anchorage device; the sleeve type metal damper is arranged outside the spring device. A specific implementation method comprises the following steps: welding one end of the spring device with the bearing plate, penetrating the steel strand through the bearing plate and the spring device, tightly adhering the bearing plate to a concrete anchorage pier, arranging the sleeve type metal damper on the outer part of the spring device in a sleeving node, installing the anchorage device, penetrating the steel strand through the anchorage device and installing the anchorage device. The energy-dissipation self-adaptive anti-seismic anchor rope structure and the specific implementation method disclosed by the invention has the technical effects that the sleeve type metal damper and the spring device can be used for providing initial rigidity to meet the normal using function of the structure, the concentrated inner force generated on the anchorage device by earthquake load is reduced through the sleeve type metal damper, the self-restoration force after the earthquake is provided through the spring device, and the self-adaptive capacity of the structure is improved.

Description

technical field [0001] The invention relates to an anchor cable structure, in particular to an anti-seismic prevention and control structure for geological disaster control in the field of geotechnical engineering. Background technique [0002] In recent years, there have been many major earthquakes in China, such as Wenchuan in Sichuan, Yushu in Qinghai, and Zhangxian in Minxian, Gansu, which have brought huge losses to people's lives and property. Therefore, the situation of earthquake prevention and disaster reduction in my country is very severe. At present, the prestressed anchor cable engineering protection side (slip) slope is widely used in water conservancy and hydropower, railway and highway industries. The prestressed anchor cable is a structural system that can withstand tension, one end of which is fixed in a stable formation (or structure), and the other end is tightly combined with the reinforced object to form a new structural complex. Its core The tension b...

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Problems solved by technology

However, this structure mainly uses the stretchability of the free section of the anchor cable to reduce the instantaneous impact force of the anchor cable, and the anchor cable itself may still be in an overloaded state; when the instantaneous impact force on the anchor cable exceeds the maximum static friction between the seismic anchorage and the anchor cable When the force is applied, the anchor cable will slide relative to the anti-seismic anchor. At this time, the anti-slip thread of the anti-seismic anchor may produce slippage, which will cause the anti-seismic anchor to fail.

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