A New Damage Index for Structural Health Monitoring: A Comparison of Time and Frequency Domains

Mathematical Problems in Engineering

Tang

et al. 2022

In order to provide a new vision and a broad idea for the evaluation of physical education in colleges and universities, a physical education teaching effect evaluation system based on big data is proposed. This study uses the method of a questionnaire survey to understand the problems encountered in the current sports evaluation of a college in China and to determine the evaluation index and its weight coefficient of college sports. The foundation of big data applications is mainly used for the establishment of college sports evaluation. The results showed that 50 percent of physical education teachers and 44.2 percent of students thought physical education examination was unnecessary, while only 16.67 percent of physical education teachers and 24.2 percent of students thought it was necessary. However, 90 percent of physical education teachers and 90.4 percent of students think school physical education evaluation is very important. At the same time, 63.33% of P.E. teachers think that the evaluation of the college P.E. curriculum is not enough and there is no responsibility. At present, there are many problems in the evaluation of physical education courses in colleges and universities, such as the curriculum, model, and scale being simple and unclear, the process is not scientific, there being no good model, and the guarantee mechanism is not good. It is concluded that the current evaluation of physical education in colleges and universities in this province has many problems, such as single subject and model, simple and fuzzy index, unscientific method, lack of individuality in the standard, imperfect guarantee mechanism, and imperfect feedback mechanism.

Section: Exploration Of the Evaluation Form Of "Internet + Physicalmentioning

confidence: 99%

Evaluation of Physical Education Teaching Effect Based on Big Data

Shu

Mathematical Problems in Engineering

Tang

et al. 2022

“…The structural failure factor iterative calculation method is constructed using the high-order Runge-Kutta method, and the sensitivity assessment of the structural failure factor was veri ed using single-degree-offreedom and double-degree-of-freedom system. Gunawan et al (2021) applied Euler-Bernoulli beam theory to construct a structural damage assessment formula that taking structural natural vibration period as the dominant factor.…”

Section: Introductionmentioning

confidence: 99%

Structural Seismic Damage Assessment Method Based on Structural Dynamic Characteristics

Lin

Yang

2022

Preprint

The seismic damage state of building structure can be evaluated by observing the fundamental period change of structure. Firstly, the fundamental period calculation formula that adapts to the deformation pattern and distribution mode of horizontal seismic action for reinforced concrete frame structure is derived. Secondly, the seismic damage assessment standard of building structure considering period variation is established. Then, the seismic damage assessment method of building structure is constructed. Finally, the seismic damage example is used to verify the established evaluation method. The results show that the established research method has high accuracy and good engineering practicability.

“…Gunawan et al 13 applied Euler–Bernoulli beam theory to construct a structural damage assessment formula that taking structural natural vibration period as the dominant factor.…”

Section: Introductionmentioning

confidence: 99%

Overall structural seismic damage rapid assessment method based on period and displacement response characteristics

Lin

Yang

2022

Sci Rep

The seismic damage state of building structure can be rapidly evaluated by coupling effect of structural displacement response and periodic characteristics. Firstly, the fundamental period calculation formula that adapts to the deformation pattern and distribution mode of horizontal seismic action for reinforced concrete frame structure is derived. Secondly, the seismic damage assessment standard of building structure considering period variation is established. Then, the seismic damage assessment method of building structure is constructed. Finally, the seismic damage example is used to verify the established evaluation method. The results show that the established research method has high accuracy and good engineering practicability.