Comparison and Analysis of Vertical Human-induced Load Models in Domestic and International Standards
The human-induced load model is a mathematical abstraction of the dynamic action exerted on structures, and it is also a simplified method for engineering analysis. Since the 20th century, Europe, the US, Japan and other countries have successively issued design standards relevant to vibration serviceability. China also issued Standards for Vibration Load of Buildings and Technical Code for Vibration Comfort of Building Floor in 2017 and 2019. Due to differences in experimental methods and computing theories among countries, the expressions of human-induced load model differ. Based on the summary of different vertical human-induced load models in domestic and foreign standards, the differences among these models are compared by calculating the peak acceleration response of a large span floor. The results showed that there is a positive correlation between the peak acceleration response of the floor slab with single-person walking load and the dynamic load factor α of the load model. The single-person walking load model of JGJ/T 441 is conservative, but the crowd walking load model may make the results small in some cases.
human-induced load modelvibration serviceabilityfinite element analysis
万方数据
维普
