Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mechanical damping system for mast arm traffic signal structures
Failures of mast arm traffic signal structures have resulted from wind-induced vibrations. This paper describes the development and testing of several different damping devices for cantilevered mast arm structures. Prototype damping devices were tested on a 11.3 m mast arm constructed in the Structures Laboratory at the University of Florida. Successful devices were then field tested on several different lengths of mast arms (11.0 m to 21.4 m) to determine the effectiveness over the full range of installations. The selected device developed was relatively insensitive to the natural frequency of the pole and consists of a tapered steel tube, weight, and spring system. The device has the potential to limit the magnitude and duration of vibrations resulting in an increase in the design life of these structures.
Mechanical damping system for mast arm traffic signal structures
Failures of mast arm traffic signal structures have resulted from wind-induced vibrations. This paper describes the development and testing of several different damping devices for cantilevered mast arm structures. Prototype damping devices were tested on a 11.3 m mast arm constructed in the Structures Laboratory at the University of Florida. Successful devices were then field tested on several different lengths of mast arms (11.0 m to 21.4 m) to determine the effectiveness over the full range of installations. The selected device developed was relatively insensitive to the natural frequency of the pole and consists of a tapered steel tube, weight, and spring system. The device has the potential to limit the magnitude and duration of vibrations resulting in an increase in the design life of these structures.
Mechanical damping system for mast arm traffic signal structures
Cook, R.A. (Autor:in) / Bloomquist, D. (Autor:in) / Kalajian, M.A. (Autor:in)
1999
4 Seiten
Aufsatz (Konferenz)
Englisch
Mechanical Damping System for Mast Arm Traffic Signal Structures
| British Library Conference Proceedings | 1999
Damping of Cantilevered Traffic Signal Structures
| British Library Online Contents | 2001
Damping of Cantilevered Traffic Signal Structures
| Online Contents | 2001
Increased Damping in Cantilevered Traffic Signal Structures
| British Library Online Contents | 2000