Title

Detection of Pretension Loss of Cable-Net Structures

Abstract

Due to aesthetic shapes, light weight and flexibility, cable-net structures have been widely used as roofs for venues where many people assemble, such as sports stadiums/arenas and gymnasiums. Failure of this type of structure may endanger the safety of many people. This type of structure consists of a separate grid of structural cables supporting a nonstructural weather shield. It is well known that the stiffness of this type of structure is established by pretension in the cables. Part of the pretension in the cables will be lost as time evolves. The detection of the pretension loss in cables of cable-stayed bridges has been widely studied. However, the detection of pretension loss in cables of cable-net structures has been lacking. In this study, the dynamic and static properties of cable-net structures will be investigated and the effectiveness of two damage detection approaches in detecting the pretension loss in cable-net structures will be investigated.

Meeting Name

ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2015 (2015: Sep. 21-23, Colorado Springs, CO)

Department(s)

Civil, Architectural and Environmental Engineering

Comments

The authors greatly appreciate the financial support from the National Science Foundation, the Hazard Mitigation and Structural Engineering program, through the project of "Damage and Instability Detection of Civil Large-scale Space Structures under Operational and Multi-hazard Environments" (Award No.: 1405023).

Keywords and Phrases

Bridge cables; Cable stayed bridges; Cable supported roofs; Damage detection; Energy harvesting; Intelligent materials; Intelligent systems; Structural health monitoring; Cable net structures; Detection approach; Light weight; Non-structural; Sports stadiums; Static properties; Structural cables; Cables

International Standard Book Number (ISBN)

978-0-7918-5730-4

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 American Society of Mechanical Engineers (ASME), All rights reserved.

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