International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 10 | Oct 2022
p-ISSN: 2395-0072
www.irjet.net
Response Spectrum and Time History Analysis of a Multistorey Building Sk. Hashmath Ali, B. Kesava Rao2 1.M.Tech.,
Student, Department of Civil Engineering, RVR&JC College of Engineering, Guntur, INDIA Professor, Department of Civil Engineering, RVR&JC College of Engineering, Guntur, INDIA ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract – The current analysis and design of a building 2. METHODOLOGY 2Assistant
are weak under adjacent forces due to earthquakes. In previous studies it has been analyzed that the buildings under lateral earthquake forces have been failed and some structures have been collapsed. A G+15 building model is generated and the design and analysis is done with the ETABS software as per Indian Standard codes. The response spectrum and time history analysis has been analyzed and its structure is designed with ETABS software. The response spectrum, analysis of time history results and also the displacements, storey shears and storey stiffness of a building is generated by using the ETABS software. The structural elements like columns, beams, shear and slabs wall have been designed as per the Indian Standard codes.
The structural analysis modes are categorized into five classifications they are –
1. INTRODUCTION High-rise structures are chosen as a solution to the land scarcity caused by the growing population. These kinds of high-rise structures are vulnerable to natural disasters. Because they can't be controlled and inflict damage and mayhem to the structural components, natural disasters like earthquakes are the most harmful. These natural disasters disrupted the course of regular lifecycle development and caused property destruction. Given that it is a worldwide issue, extensive research must be done, and the findings must be presented in order to prepare the framework and meet the deadline. With the development of technology, man has attempted to resist these natural disasters in numerous ways, including by creating early warning systems for disasters, implementing fresh preventative strategies, and putting in place effective relief and rescue efforts. But regrettably, not all natural calamities fall within this category. There are periodic revisions to the risk maps that identify seismic zones in seismic codes (IS 1893:2002), which increases the base shear requirement on existing structures. If the following factors are taken into account, the risk of a building collapsing is reduced.
Impact Factor value: 7.529
ii.
Equivalent Static Analysis
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Linear Dynamic Analysis
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Non-Linear Static Analysis
v.
Non-Linear Dynamic Analysis
The analysis performing upon the structure resembling the impact of seismic activity motions usually defined with a response spectrum. This one assumes that the structure reacts around its primary modes and its true that the construction have to be low-rise in addition to it should not twist ominously with movements if the ground.
Time History Analysis
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Response Spectrum Analysis
2.1 EQUIVALENT STATIC ANALYSIS
Key Words: Building Frame, Response Spectrum and
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i.
2.2 RESPONSE SPECTRUM ANALYSIS The method approves the various methods of response of structure to be procured into analysis and these modes can also be combination of some special modes. These techniques for the structure of each mode for which a response is to be supplied from the design spectrum may be resolved using computer analysis. Based on modal mass and modal frequencies, the overall response of the structure is given and calculated. This allows us to calculate the forces' magnitudes in all X, Y, Z directions. As a consequence, Research into the response spectrum that makes use of ground-motion response spectra will provide results that vary from those obtained from a straightforward linear dynamic analysis of ground-motion data. In cases where the structure is irregular (or) too tall the response spectrum is approached no longer appropriate to the complex study.
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