AKConsult CIVIL &STURCTURAL ENGINEERING CONSULTANT Analysis & Design using ETABS_Wind Loads 20130101 Analytical Method as per ASCE7-05 Design Wind Load Case: oChoose Create All Cases, so that all design wind load cases are determined and torsional moment effect are taken into account. Eccentricity: Exposure Height: oSpecify the top story as the upper-most level in the building. oThe bottom level would typically be the ground level. oInclude 1m minimum parapet height. Other Parameters: As per design criteria and reference code. Extracting Wind Loads from Wind Tunnel Test Results These loads are generally calculated by wind tunnel testing laboratories based on the dynamic properties of the structure as modeled during the preliminary or concept design stages. Wind loads are reported as separate load cases that should be combined through the set of load combinations as reflected in the wind tunnel consultant report. Moreover since the wind consultants generally carry out their calculations at the center of the diaphragm of each floor, it is recommended that these points are taken in location as close to the center of mass of diaphragm as possible. Wind loads obtained from wind tunnel studies may be defined in ETABS as a User Defined Lateral Load. A separate wind load case shall be defined representing the load caseas per wind tunnel report. The load values may directly be copied from a spreadsheet. Various load combinations shall also be defined accordingly.