Abstract: As compared to reinforced concrete structures, steel has got some important properties like high strength and ductility. We know that steel is ductile so it gives warning before failures. All these properties of steel will play very important role in case of seismic and wind resistant design, there are many types of frame such as rigid frame, semi rigid frames and simple frames among these we have taken rigid frames for this case study. The rigid frames are the frames in which the angle between the members doesn’t changes even after the loading and the beam-column connections are moment resisting connections which means do not allow any relative rotations at the joints of the members. Bracing is required to provide lateral stability of the frame. In this project five models are created in which one is without bracing structure and four models with different bracing structures and an attempt is made to analyze the response buildings with and without bracings systems subjected to seismic load and wind load using ETABS and to identify the suitability of the bracing systems to resist the lateral loads efficiently, here the steel considerations like sectional properties, loads and load combinations as per IS 800:2002. The main parameters consider in the present study is to compare the seismic and wind performance of buildings are base shear, roof displacement. The models are analyze by equivalent static analysis as per IS 1893:2002. Effect of Wind Loads on the Structural Systems are analyzed and compared as per IS 875 (part 3). Based on the results and discussions we can conclude that for highly affected earthquake zone-IV and for different wind speed 50m/s, therefore the structure having X- type Bracings are highly effective type of bracing style.
Keywords: Rigid frames, Bracings, seismic and Base shear
Title: Stability analysis of rigid steel frames with and without bracing systems under the effect of seismic and wind loads
Author: Hussain Imran K.M, Mrs.Sowjanya G.V
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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