Effect of Earthquake Load on Column Forces in Concrete Frame Structures with Different Type of RC Shear Walls under Different type of Soil Condition

Research Area: Volume 7,Issue 1, Jan. 2018 Year: 2018
Type of Publication: Article Keywords: Dynamic Analysis, Column Forces, Soft, Medium and Hard Soil, Time Period, Frequency and Modal Load Participation Ratios, C, Box, E, I and Plus Shapes RC Shear Wall, Software ETABS
Journal: IJEIR Volume: 7
Number: 1 Pages: 45-61
Month: January
ISSN: 2277-5668
Shear Wall is A Structural Element Used to Resist Lateral, Horizontal, Shear Forces Parallel to the Plane of the Wall By: Cantilever Action For Slender Walls Where The Bending Deformation is Dominant. Truss Action for Squat/Short Walls where the Shear Deformation is Dominant. Shear walls are analyzed to resist two types of forces: shear forces and uplift forces. Shear forces are created throughout the height of the wall between the top and bottom shear wall connections. Uplift forces exist on shear walls because the horizontal forces are applied to the top of the wall. These uplift forces try to lift up one end of the wall and push the other end down. In some cases, the uplift force is large enough to tip the wall over. Shear walls are analyzed to the provide necessary lateral strength to resist horizontal forces. Shear walls are strong enough, to transfer these horizontal forces to the next element in the load path below them. The seismic motion that reaches a structure on the surface of the earth is influenced by local soil conditions. The subsurface soil layers underlying the building foundation may amplify the response of the building to earthquake motions originating in the bedrock. Three types soil are considered here: Hard soil, Medium soil, soft soil. In the present work thirty story building with C Shape, Box shape, E Shape, I shape and Plus shape RC Shear wall at the center in Concrete Frame Structure with fixed support conditions under different type of soil for earthquake zone V as per IS 1893 (part 1) : 2002 in India are analyzed using software ETABS by Dynamic analysis. All the analyses has been carried out as per the Indian Standard code books. This paper aims to Study the effect of Seismic load on Column Forces in Different type of RC Shear Walls in Concrete Frame Structures under Different type of Soil Condition. Estimation of Column Forces such as; Column Axial Force, Column moment, Column shear Force, Column Torsion, Time period and frequency and Modal Load Participation Ratios is carried out. In dynamic analysis; Response Spectrum method is used.

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