CHAPTER 2
LITERATURE REVIEW
2.1 General
The use of Dual structural system having Shear wall has become prominent in earthquake resistant design of tall buildings owing to its excellent performance during past earthquakes. Use of basement and ground floor for parking and garage purposes has become a common practice, which requires a structurally sound system to resist the seismic forces induced during an earthquake or wind forces and in such situations shear wall proves to be a promising element in resisting the lateral loads. Due to the efficiency of shear wall in resisting earthquake loads, they have become a popular structural element in tall buildings. But an accurate analysis is required to validate the performance of these types of structural
Kumbhare & A.C. Saoji [2012] carried out a comparative study to find the effectiveness of reinforced concrete shear wall in medium rise buildings. Five different models used for the study were: - 1) Bare frame without shear wall, 2) Dual type structural system with one wall on each side, 3) Shear wall at corner, 4) Interior shear wall and 5) Shear wall at all sides in corner. Beams and columns were modelled as two noded beam elements with six degree of freedom at each node. Equivalent static analysis (or linear static analysis) was performed on models to obtain the values of various parameters viz. shear force, bending moment, displacement, storey shear and storey drift. The authors found that dual structural systems have lesser values for the design parameters as compared to bare frame. They concluded that dual structural system having shear wall are very effective in resisting lateral forces induced by earthquake but bare frame system can also be used for medium rise buildings in high seismic zones from the economical point of
The building had same plan and varied height and assumed to be located in various seismic locations for varying heights of the building. The authors carried out the analysis using RESIST software for a building under lateral loading and considered both wind and earthquake load for analysis. The author observed that the length of the shear wall increases linearly with the increase in height of the building. The graph for base shear was observed to vary linearly and for base moment it is in power equation pattern, as the base area increases the stability of the building also increases and with an increase in stability minimum thickness to prevent buckling of shear wall is