基于多部荷载的人致不行荷载的重构.pdfVIP

The 12th International Symposium on Structural Engineering RECONSTRUCTION OF HUMAN INDUCED WALKING LOAD BASED ON MULTI-SEGMENTAL RIGID MODEL 1 1,2 1 Mengshi Zhang , Jun Chen , Yixin Peng ¹ Department of Building Engineering, Tongji University, Shanghai 200092, P.R. China ²State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P.R. China Abstract: Single rigid and multi-segmental rigid human walking models are developed and verified using 3066 sets of experimental data from 73 test subjects walking at different frequencies. Results show that the multi-segmental rigid model and single rigid model are both suitable for the reconstruction of vertical ground reaction force for normal walking frequency and the single rigid model is recommended for its simplicity and easy for application. As for the reconstruction of lateral ground reaction force, the multi-segmental rigid model is superior to single rigid model. Keywords: Multi-segmental rigid model, ground reaction force, reconstruction 1 INTRODUCTION people’s walking load and load modelling are of great significance for the engineering practice. Traditional instruments for measurement human In recent years, in order to satisfy the walking load are force plates, which directly record ever-increasing architectural need for large and the ground reaction force (GRF, hereafter) induced open space, long-span floors as pre-stressed