跑步荷载模型试验建模与实测对比  

Comparison between test modeling and actual measurement of running load model

作　　者：陈隽[1,2] 周戈杰 王鹏程 CHEN Jun;ZHOU Gejie;WANG Pengcheng(College of Civil Engineering,Tongji University,Shanghai 200092,China;State Key Lab of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学土木工程学院,上海200092 [2]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《振动与冲击》2022年第15期179-185,共7页Journal of Vibration and Shock

基　　金：上海市优秀学术带头人项目(19XD1403900)。

摘　　要：利用高精度无线测力鞋垫,完成了7种不同频率下跑步荷载试验,获得345条连续跑步荷载曲线,据此建立了单人跑步荷载的傅里叶级数模型,提出了前5阶动载因子(DLF)和相位角的取值建议。通过模型计算值与工程实例在跑步荷载下实测响应的对比,说明了所提出的跑步荷载模型的可行性,表明该模型可用于考虑跑步激励导致工程结构的振动问题的设计与分析。Here,using high-precision wireless force-measuring insoles,running load tests under 7 different frequencies were conducted,and 345 continuous running load curves were obtained.Based on test results,a Fourier series model of single person running load was established,and the first five order dynamic load factors(DLF)and phase angles were proposed.By comparing calculated values of the model with measured responses of engineering examples under running load,the feasibility of the proposed running load model was verified.It was shown that the proposed model can be used for design and analysis of engineering structure vibration problems caused by running excitation.

关 键 词：跑步荷载 振动舒适度 傅里叶级数模型 动载因子(DLF) 

分 类 号：TU312[建筑科学—结构工程]