In this modern world structures are acted upon frequently by dynamic loads such as earthquake, cyclones, floods, land slides, blasting, etc., in contrast to those constructed a few centuries ago wherein loading on the structures were mainly static in nature. The speciality of static loadings are their variation in magnitudes with time do not change, i.e., their magnitudes remain constant for ever. At that time designers were happy if they designed the structures for static loading only and also found satisfied when the design fulfilled the conditions prescribed by codes of practices prevalent at that time. Subsequently extreme loadings struck the buildings and they were found wanting. When the extreme loading particularly earthquales were widespread throughout the world and their occurrences were repeated resulting in colossal loss of lives and properties, engineers and scientists became wiser and commenced organised research to find a solution to ensure safety to human beings. The outcome of this research is the formulation of texts on dynamics of structures. The present treatise is therefore entitled as Basics of Dynamics and Earthquake Resistant Structures. It covers the fundamental principles of dynamics as applicable to structures and deigns these structures to resist the forces induced by motion of the ground. As various guidelines have been framed by codal authorities of the country to design structures constructed with masonry, reinforced concrete and steel. In India the codal authority is the Bureau of Indian Standard. It has released mainly three codes related to earthquake design, viz., IS: 1890, IS: 13920 and IS: 4320 for designers to follow in their design. In essence the book contains 32 chapters dealing with various aspects of theory of vibration, basics of seismicity, lesson learnt from past earthquakes, related soil properties and its measurement, analysis techniques such as response spectrum approach and time history technique, various aspects of seismic resistance provisions of buildings, codal provisions relevant to buildings constructed in India, details about isolation and vibration control methods, mitigation of earthquake effects and finally quality aspect of materials and construction technique. The book has been prepared based on the syllabus prescribed by Anna University and other universities situated in different parts of the country. This book has been tailored to suit to design engineers and other practising engineers in their profession. The hallmark of this book is that it presents at the end of each chapter Points to Remember section which will be quite beneficial for them to score high marks in 2 marks part of the university question paper.
Download Free PDF View PDF
