Structural Dynamics in Earthquake and Blast Resistant Design

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BK Raghu Prasad (Retired, Department of Civil Engineering, Indian Institute of Science, Bangalore, INDIA)

Structural Dynamics in Earthquake and Blast Resistant Design

BK Raghu Prasad (Retired, Department of Civil Engineering, Indian Institute of Science, Bangalore, INDIA)

$110

Paperback

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English

CRC Press
25 September 2023

Structural engineering

Focusing on the fundamentals of structural dynamics required for earthquake blast resistant design, Structural Dynamics in Earthquake and Blast Resistant Design initiates a new approach of blending a little theory with a little practical design in order to bridge this unfriendly gap, thus making the book more structural engineer-friendly. This is attempted by introducing the equations of motion followed by free and forced vibrations of SDF and MDF systems, D’Alembert’s principle, Duhammel’s integral, relevant impulse, pulse and sinusoidal inputs, and, most importantly, support motion and triangular pulse input required in earthquake and blast resistant designs, respectively. Responses of multistorey buildings subjected to earthquake ground motion by a well-known mode superposition technique are explained. Examples of real-size structures as they are being designed and constructed using the popular ETABS and STAAD are shown. Problems encountered in such designs while following the relevant codes of practice like IS 1893 2016 due to architectural constraints are highlighted. A very difficult constraint is in avoiding torsional modes in fundamental and first three modes, the inability to get enough mass participation, and several others. In blast resistant design the constraint is to model the blast effects on basement storeys (below ground level). The problem is in obtaining the attenuation due to the soil. Examples of inelastic hysteretic systems where top soft storey plays an important role in expending the input energy, provided it is not below a stiffer storey (as also required by IS 1893 2016), and inelastic torsional response of structures asymmetric in plan are illustrated in great detail. In both cases the concept of ductility is explained in detail. Results of response spectrum analyses of tall buildings asymmetric in plan constructed in Bengaluru using ETABS are mentioned. Application of capacity spectrum is explained and illustrated using ETABS for a tall building. Research output of retrofitting techniques is mentioned. Response spectrum analysis using PYTHON is illustrated with the hope that it could be a less expensive approach as it is an open source code. A new approach of creating a fictitious (imaginary) boundary to obtain blast loads on below-ground structures devised by the author is presented with an example.

Aimed at senior undergraduates and graduates in civil engineering, earthquake engineering and structural engineering, this book:

Explains in a simple manner the fundamentals of structural dynamics pertaining to earthquake and blast resistant design Illustrates seismic resistant designs such as ductile design philosophy and limit state design with the use of capacity spectrum Discusses frequency domain analysis and Laplace transform approach in detail Explains solutions of building frames using software like ETABS and STAAD Covers numerical simulation using a well-known open source tool PYTHON

By: BK Raghu Prasad (Retired Department of Civil Engineering Indian Institute of Science Bangalore INDIA)
Imprint: CRC Press
Country of Publication: United Kingdom
Dimensions: Height: 234mm, Width: 156mm,
Weight: 680g
ISBN: 9780367519001
ISBN 10: 0367519003
Pages: 310
Publication Date: 25 September 2023
Audience: College/higher education , General/trade , Primary , ELT Advanced
Format: Paperback
Publisher's Status: Active

1. Introduction. 2. Single Degree of Freedom Systems(S.D.F Systems). 3. Two Degree of Freedom System. 4. Force Transmitted to the Support. 5. Duhamel’s Integral. 6. Modal Analysis. 7. Earthquake Resistant Design. 8. Inelastic Vibration Absorber Subjected to Earthquake Ground Motion. 9. Inelastic Torsional Response of a Single-Storeyed Framed Structure-Two Degree-of-Freedom System. 10. Inelastic Torsional Response of a Single-Storeyed Framed Structure-Three Degrees-of-Freedom System. 11. Earthquake Resistant Design as per IS 1893:2016. 12. Miscellaneous Aspects.

B.K. Raghu Prasad retired as a professor from Civil Engineering deparetment of Indian Academy of Sciences, Bangalore, India and his areas of research are fracture mechanics of concrete, structural dynamics, earthquake resistant design, finite element and boundary element methods. He has more than 60 research papers to his credit and he has supervised more than 25 students for thier Ph.D degrees.

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Structural Dynamics in Earthquake and Blast Resistant Design

BK Raghu Prasad (Retired, Department of Civil Engineering, Indian Institute of Science, Bangalore, INDIA)

$110

Paperback

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