Damage Identification of Concrete-filled Tube Frame Structure Based on Cross Model Cross Mode [基于CMCM方法的钢管混凝土框架结构损伤识别]

作者：Ni T.-Q.; Du P.; Xu C.-X.

来源：Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology, 2020, 42(2): 37-41.

DOI：10.3963/j.issn.1671-4431.2020.02.007

• CMCM method
• Concrete-filled steel tube
• Damage identification
• Frame structure

Based on the relevant provisions of the current specifications, a four-storey spatial frame model with two spans and two bays was designed and manufactured. The model was made of concrete-filled square steel tube, steel beams, and composite floor. The model damage level was simulated by making incisions at the column end, and impulse excitation modal tests was conducted to obtain the modal parameters of the structure in health and damage. The damage position and degree of concrete-filled tube frame structures were simulated according to experimental conditions. The cross model cross mode (CMCM) method was used to identify the damage of concrete-filled steel tube frame structure, and the feasibility and validity of CMCM method were also verified.

• 单位
  武汉科技大学