International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
EFFECT OF SHEAR WALL POSITION IN MULTI-STORIED BUILDING D Vivek varam1, CH vinodh Kumar2, K V Vijaya kumarraju3 D Vivek Varma,Dept. of civil Engineering, GOKUL College of Engineering,Piridi-535005,Andhra Pradesh, India CH Vinod Kumar,Dept. of civil Engineering, GOKUL College of Engineering,Piridi-535005, Andhra Pradesh, India K V Vijaya kumarraju,Dept. of civil Engineering, MVGR College of Engineering (A), Vizianagaram-535005, Andhra Pradesh, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - Earthquake is the natural calamity, it produce strong ground motions which affect the structure. Small or weak motions, that can or cannot be felt by the humans. Shear walls are installed to enhance the lateral stiffness, ductility, minimum lateral displacements and safety of the structure. Storey drift and lateral displacements are the critical issues in seismic design of buildings. Different types of frame models are developed and evaluated by Time history analysis and response spectrum analysis by STAADPro. Shear walls are RC walls that are projected along the structure from base. Shear walls reduce the Storey displacement when seismic forces counter the building. Since, the structure may not have aesthetic appearance if the structure is closed with shear wall along the building so shear wall is proved in side of the building. For low rise buildings, bracings may not be suitable. In the present work G + 10 multi Storey building is analyzed by using shear wall at different positions. The structure is analyzed and results for different models of structure are evaluated. Keywords:Shear wall, Time history, Response spectrum, Displacement, Reactions and moment
1. INTRODUCTION Now-a-days Earthquakes are the most unpredictable and common natural disasters which occurs frequently in some parts of the world (zones). An abrupt released of energy in Earth’s crust which forms seismic waves and results in EARTHQUAKE also known as tremor. Which are very difficult to save life, Engineering and other properties. The seismic waves travel outward from the source of the earthquake at varying speeds and are measured by two important parameters those are magnitude and intensity. Intensity is the apparent effect experienced at that location and amount of energy released is measure of magnitude. Structures on earth, Experiences this effect and causes damage, to resist the lateral forces (seismic waves) structure should adopt stiffness and lateral strength to the buildings. Hence in order to overcome these issues we
Š 2016, IRJET
need to identify the seismic act of the built environment through the development of various methodical procedures, which ensure the structures to withstand during frequent minor earthquakes and produce enough risk avoidance whenever subjected to major earthquake events. So that can save as many lives as possible by adopting Shear walls and bracings to the structure can resist the lateral forces. All over the world, there are several guidelines which has been over and over again updating on this topic. In case of earthquake prone areas RC shear walls have been used to resist the lateral forces because they have high lateral stiffness. RC shear walls resist earthquake forces with minor damage. When compare to irregular structures, the buildings with uniform load distribution, stiffness and regular geometry in plan and elevation suffer less damage.
2. STRUCTURAL AND GEOMETRICALPROPERTIES 2.1 Preliminary data for G + 10 plane frame 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20.
Type of structure : Multistorey rigid jointed planeframe Zone : II Number of stories: G + 10 Imposed load : 2 kN/m2 at roof and 4 kN/m2 at floors Terrace water proofing (TWF) : 1.5 kN/m2 Floor finish : 0.5 kN/m2 Depth of slab : 120 mm Materials : M 30 concrete and Fe 415 steel Unit weight of RRC : 25 kN/m3 Unit weight of masonry : 20 kN/m3 Modulus of elasticity of concrete : 2 x 107 kN/m2 Bay width of plane frame (in both x and z): 3 m Total height of building frame : 33 m Height of storey : 3m Depth of foundation :2m Beams : 300 x 300 mm Columns upto 5 storeys : 300 x 500 mm Columns top 5 storeys : 300 x 400 mm Clear cover of beam : 25 mm Clear cover of Column : 40 mm
| Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal |
Page 1991