Oriented vertical adjustable tuning mass bumper

A tuning quality and adjustable technology, which is applied to bridge parts, bridges, building components, etc., can solve the problems of difficult frequency tuning, TMD frequency imbalance, and aggravate the original structure reaction, so as to achieve huge economic and social benefits and reduce resonance Problems, the effect of ensuring safety
CN1614148AInactive Publication Date: 2005-05-11DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2005-05-11
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

A vibration-damping control unit for the pedestrian bridge over street, landing bridge of port and other similar structures in order to reduce the resonance caused by load features that mass block is made up of the steel plates through stacking them together and fixing by screw bolts, and two vertical guide rods are arranged at both sides of viscose oil damper for preventing its lateral swinging. Said mass block is regulatable.
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Description

technical field

[0001] The invention belongs to the technical field of vibration reduction of civil engineering structures, and relates to the design of shock absorbers composed of steel plates, guide rods, springs and viscous oil dampers for large-span pedestrian bridges, port trestles and related structures. Background technique

[0002] With the development of urban construction, the roads become wider and wider. As a pedestrian bridge to ensure that pedestrians pass through the road quickly and safely, its span is also increasing. For this type of long-span pedestrian bridge, although the strength and stiffness are relatively easy to meet the design requirements, the frequency of vertical vibration is relatively low, usually only about 2 Hz. The statistical results show that the frequency of people walking is about 2 Hz. Therefore, when pedestrians pass through the bridge, it is easy to generate resonance in the vertical direction, causing panic among pedestrians and ev...

Claims

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