i-shape beam meaning in Chinese

工字梁

Finite element analysis of combined i - shaped beams under eccentric load
组合工字型梁在偏心荷载作用下的有限元分析
It analyzes the dynamic response of many different damage cases of simple i - shape beam structure and discusses their influences to natural frequency and modal curvature . it is found that the natural frequency and modal curvature can be used in identifying the severity and location of structural damage respectively . dynamic response of some real beams are measured and compared to the results analyzed by computer , it is found that there are some differences between them and the main reason is the error caused by modeling
2 .针对土木结构中最为常见的梁式结构,对简支工字钢梁的多种不同损伤工况的动力特性进行了有限元仿真分析,研究了损伤对频率和模态曲率的影响,发现固有频率变化率和模态曲率的变化分别可以用于损伤程度和损伤位置的识别;在实验室中实测了几种工况的钢梁的振动模态,发现实测结果与计算结果有一定的差异,分析其原因主要是模型误差和噪声影响。