Fabricated-type truss structure comprising elbow-joint-type multi-dimensional vibration reduction rod piece

Abstract

The invention discloses a fabricated-type truss structure comprising an elbow-joint-type multi-dimensional vibration reduction rod piece. The fabricated-type truss structure comprising the elbow-joint-type multi-dimensional vibration reduction rod piece mainly depends on an elbow-joint-type vibration reduction part for earthquake resistance and earthquake vibration reduction. A vertical angle is formed by dampers and an upper chord member, the dampers are hinged to the upper chord member, and meanwhile, each damper is connected with two lower connecting rods through a connecting plate; the lower connecting rods are connected to joints of a lower chord member, the joints are hinged, the dampers are in bolt connection with joint plates, and main body parts of the truss structure are fixedlyconnected together through bolts; viscoelastic materials are additionally arranged at elbow-joint structure hinging points, and thus better vibration reduction and energy consumption can be achieved when the structure is displaced; and when the earthquake effect or wind load disappears, the lower connecting rods and the dampers are not displaced any more, but are reset to jointly form a truss structure system with other components for joint force bearing. According to the truss structure, the force bearing requirement of the truss structure is met, and meanwhile, the vibration resistance and reduction effects of the structure system can further be enhanced.

Description

technical field [0001] The invention relates to an assemblable truss structure including toggle-shaped multi-dimensional damping rods, which belongs to the technical field of vibration damping control and assemblable structures of structural engineering. Background technique [0002] In recent years, with the rapid growth of my country's economy, coupled with the advantages of light weight, diverse structural forms, wide application range and environmental protection, long-span steel structures have developed rapidly. It is worth noting that most steel structures are located in areas with seismic fortification intensity greater than 6 degrees or areas with frequent strong winds, and their dynamic risks are relatively high. The frequent occurrence of earthquakes and strong wind damage in recent years has made people pay more and more attention to the anti-vibration performance of buildings, and the requirements for the anti-vibration design level of long-span steel structures...

AI Technical Summary

Problems solved by technology

[0004] The traditional truss structure is widely used, but it has some obvious disadvantages, such as: inconvenient installation, low shock absorption efficiency, multi-dimensional shock absorption due to the connection conditions of the damper, and inability to meet the needs of rapid assembly of structures, etc.

Moreover, its anti-vibration performance is usually realized only by its own structural form and mechanical capacity, and generally no other special vibration reduction measures are taken.

For large-scale truss structures, if no effective vibration-damping design scheme is adopted or additional vibration-damping devices are installed, serious damage may occur under large earthquakes or strong winds

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