Application of non-detective techniques in traditional masonry structures

作者：Cheng, Cheng; Che, Ai Lan; Cao, Yong Kang

来源：Journal of Shanghai Jiaotong University (Science), 2013, 18(3): 306-310.

DOI：10.1007/s12204-013-1399-9

• Architectural structure
• Damage Identification
• Micro-tremor measurements
• Microtremors
• natural modal
• Nondestructive detection
• Stiffness loss
• Traditional masonries

Study on the non-destructive detection techniques and damage identification method is of great importance in protecting and rehabilitating the ancient architectural structure. In order to identify the location and the grade of structural damages, a multi-point microtremor measurement is performed on carved brick screen walls at Songjiang area in Shanghai, and the observed dynamic parameters (natural frequencies and natural modal) are obtained. On the other hand, the dynamic parameters of the original structure are calculated by finite-elementmethod (FEM). Normalizing the observed and calculated parameters on unified physical quantity, the damages are located by the variation on vibration modal, and the grade of structural damages is quantitatively evaluated by stiffness losses based on the variation on vibration modal.

• 出版日期2013
• 单位上海交通大学