07-09-2012, 04:44 AM
Preface:
The dynamical behaviour of civil engineering structures has traditionally been tackled, for design purposes, in an ‘equivalent static’ way, essentially by introducing magnification factors for vertically applied loads and/or by specifying equivalent horizontal loads. Today the availability of software able to deal explicitly with dynamic analysis of realistic structures with many (dynamic) degrees of freedom, as well as the outcome of the valuable research carried out in the various fields included under ‘Dynamics’, make this type of analysis a part of everyday life in the design office.
There are also a number of good reasons why dynamical behaviour of buildings, bridges and other structures is now more of a concern for the designer than it used to be 20 or 30 years ago. One reason is that the aforementioned structures currently consist of structural members that are more slender than before, and lighter cladding made of metal and glass or composites rather than of brick walls. This offers a number of architectural advantages, but also makes these structures more sensitive to vibration, due to their reduced stiffness. From another perspective, the risk to environmental dynamic loads, like those from earthquakes, has increased due to the tremendous increase in urbanization witnessed in many countries subject to such hazards. Furthermore, the increased need for building robust and efficient structures inside the sea has also placed more emphasis on properly designing such structures against dynamic loading resulting from waves and currents.
Dealing with all, or even some of the aforementioned dynamic loads in an explicit way is clearly a challenge for the practising engineer, since academic curricula can hardly accommodate a proper treatment of all these loads. Furthermore, the lack of a book dealing with all types of dynamic loading falling within the scope of current codes of practice, makes the problem even more acute.
The main purpose of this book is to present in a single volume material on dynamic loading and design of structures that is currently spread among several publications (books, journals, conference proceedings). The book provides the background for each type of loading (making also reference to recent research results), and then focuses on the way each loading is taken into account in the design process.[/code]
Alternate link :
The dynamical behaviour of civil engineering structures has traditionally been tackled, for design purposes, in an ‘equivalent static’ way, essentially by introducing magnification factors for vertically applied loads and/or by specifying equivalent horizontal loads. Today the availability of software able to deal explicitly with dynamic analysis of realistic structures with many (dynamic) degrees of freedom, as well as the outcome of the valuable research carried out in the various fields included under ‘Dynamics’, make this type of analysis a part of everyday life in the design office.
There are also a number of good reasons why dynamical behaviour of buildings, bridges and other structures is now more of a concern for the designer than it used to be 20 or 30 years ago. One reason is that the aforementioned structures currently consist of structural members that are more slender than before, and lighter cladding made of metal and glass or composites rather than of brick walls. This offers a number of architectural advantages, but also makes these structures more sensitive to vibration, due to their reduced stiffness. From another perspective, the risk to environmental dynamic loads, like those from earthquakes, has increased due to the tremendous increase in urbanization witnessed in many countries subject to such hazards. Furthermore, the increased need for building robust and efficient structures inside the sea has also placed more emphasis on properly designing such structures against dynamic loading resulting from waves and currents.
Dealing with all, or even some of the aforementioned dynamic loads in an explicit way is clearly a challenge for the practising engineer, since academic curricula can hardly accommodate a proper treatment of all these loads. Furthermore, the lack of a book dealing with all types of dynamic loading falling within the scope of current codes of practice, makes the problem even more acute.
The main purpose of this book is to present in a single volume material on dynamic loading and design of structures that is currently spread among several publications (books, journals, conference proceedings). The book provides the background for each type of loading (making also reference to recent research results), and then focuses on the way each loading is taken into account in the design process.[/code]
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Regards,
Shadab
"Dream till you Live, Chase till you Die"
Shadab
"Dream till you Live, Chase till you Die"