A Cost Optimization Study of Multi Story Building under Different Indian Zones
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 1
Abstract
Even after designing structures for different level of seismic forces, those may or may not perform to the level that they were designed for. It is very important to have practice of earthquake-resistant design, in order to adequately predict the behavior of a real building during a severe seismic motion that it will have to withstand without collapse, at least once during its service life. Civil engineering tends to achieve acceptable performance of structures during seismic excitation, with the robust design. For example, if a building is designed for Design Basis Earthquake (DBE) according to Bureau of Indian Standards, the building may not perform even for DBE. It is due to the safety provided by existing codes based on engineer’s judgment and their past experience, which incorporate the randomness in data. It is the responsibility of engineer to deal with such uncertain information. Consequences can be severe for the upcoming events, since performance of the structure cannot be predicted from experience. In the present study seismic behavior of 12 storied RC framed building with typical plan has been studied. A twelve storey RC framed building designed for earthquake resistant design located in various zones, soils and with different response reduction factor. The designed building performance is compared, in terms of structural economy, fundamental period of vibration, pattern of displacements variation and hinge formation pattern. The seismic performance of building is investigated using linear static analysis and non-linear time history analysis. In the present work, these issues were studied in detail by evaluating the performance of chosen typical building configuration using nonlinear time history analysis. Even though this kind of studies existed in literature, till date no study concentrate on the comparison of variation of cost due to different design levels and their performance. Objective of seismic design of buildings is to ensure the following multilevel performance criteria: Safety of the life of users and general public in the event of Maximum Considered Earthquake (MCE), Building suffers minor nonstructural damage and no structural damage under less severe but more frequent earthquake, and buildings shall remain operational without any structural and nonstructural damage for frequent earthquake.
Authors and Affiliations
N. Teja Reddy, V. Rama Krishnan
Keywords
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