Wind-Induced Response and Equivalent Static Wind Loads on Waiting Hall Building of Regular Railway Stations

Abstract

This paper investigates the influence of the canopy span, canopy opening width and waiting hall building height on the loads and equivalent static wind loads (ESWL) of the waiting hall building. The results show both the mean and standard deviation wind pressure coefficients at the roof of waiting hall buildings are affected by the interference effects caused by the upstream canopies. The wind-induced response of the waiting hall building roof is usually dominated by the first vibration mode, 0∘, 90∘ and 180∘ are the three adverse wind directions. Based on the wind tunnel tests, parameters of the fitted spectrum of the first modal generalized wind pressure for waiting hall buildings are obtained at the adverse wind directions. The semi-analytical expressions of equivalent static wind loads (ESWL) on waiting hall building roofs are derived using the first modal inertial force as a function of the structural reduced frequency. The good accuracy of the proposed ESWL is verified by comparing the nodal displacements and member stresses calculated by the proposed method to the actual dynamic peak results.