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摘要
To determine whether the actual pretension of membrane structure tallies with the design pretension and whether the membrane structure is relaxed after employing, we must monitor the actual pretension of the building membrane structure accurately and then adopt some measures to ensure the engineering quality and reduce the engineering accidents. The pretension monitoring of the building membrane structure belongs to the structural nondestructive health monitoring field. The authors of this paper developed a new methodejection method for monitoring the pretension of building membrane structure accurately and nondestructively. The basic idea of this method was represented, and the theoretical model of this method was established by studying the large amplitude nonlinear vibration problem of the orthotropic membrane, and then the theoretical measurement formula was derived by the energy conservation principle. Meanwhile, the finite element numerical analysis was carried out for the theoretical model, and the ejection experiment for the three kinds of conventional membrane material (Mehler FR-900 (Mehler Texnologies, Huckelhoven, Germany), Ferrari 502S (Ferrari, Cape Town, South Africa), and Yilong 750 (Yilong, Guangdong, China)) was carried out according to the theoretical idea. The numerical analysis and experimental results proved that the ejection method is feasible and verified that the theoretical derivation is correct.
- 出版日期2013-4
- 单位重庆大学
