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INSTRUCTOR: 
Praveen K. Malhotra, Ph.D., P.E., M.ASCE

Purpose and Background

Structures (and equipment) are analyzed to identify their vulnerabilities to seismic ground shaking. The analysis is carried out by applying ground motions to a mathematical model of the structure. The ground motions are defined by their response spectra or time-histories. The structure is modeled by a lumped- or distributed-mass system. The nonlinearities are explicitly modeled or empirically considered. As a result, there are many different methods of analyzing a structure. The objectives of this seminar are to: (a) discuss the pros and cons of different methods of analysis; and (b) provide an understanding of the dynamic response of structures such that the most appropriate method of analysis can be selected and the most efficient design can be implemented.

Benefits and Learning Outcomes

Benefits

• To learn why seismic loads are different from other loads
• To gain a thorough understanding of the dynamic response of structures to seismic ground shaking
• To learn the benefits and limitations of different methods of seismic analysis

Learning Outcomes

Upon completion of this course, you will be able to:

• Recognize the characteristics of seismic ground motions that affect the response of structure
• Recognize the dynamic characteristics of a structure
• Identify the forces and deformations experienced by a structure
• Explain when it is more effective to design a stiff structure and when it is more effective to design a flexible structure
• Explain how a structure can be analyzed without the use of empirical factors
• Correctly list the characteristics of a structure that are most effective in improving its seismic performance
• Name two appropriate methods of analysis in performance-based seismic design

Assessment of Learning Outcomes

Learning outcomes will be assessed through discussions in the class and a short post-test.

Who Should Attend?

Structural engineers, geotechnical engineers, architects, geoscientists, risk managers, building Officials, facility managers and owners

Outline

DAY 1

• Response spectra of ground motions
• Site-specific acceleration and deformation response spectra
• Cyclic-demand spectrum
• Time-histories of ground motion
• Site-specific tri-axial ground motion histories
• Lumped- and distributed-mass models of structures
• Modal characteristics - mass, damping and period (or frequency)
• Linear-static and linear-dynamic analyses
• Use of empirical factors to consider nonlinear

DAY 2

• Nonlinear-static (pushover) analysis
• Capacity and demand curves
• Ductility and deformability
• Different sources of damping
• Effective period and damping at equilibrium
• Nonlinear-dynamic analysis
• Modelling nonlinearities due to plastic-yielding, sliding and uplifting (rocking)
• Sliding and rocking response of equipment
• Static and dynamic analyses to compute the sliding and uplifting (rocking) response of equipment
• Analysis of equipment on vibration isolators
• Dynamic response of storage racks
• Modelling plastic-yielding, sliding and geometric nonlinearities in dynamic response of storage racks
• Linear and nonlinear analyses of liquid-storage tanks
• Modelling sliding, uplifting and plastic-yielding in the analysis of liquid-storage tanks

How to Earn your CEUs/PDHs

This in-person course is worth 1.4 CEUs/14 PDHs. To receive your certificate of completion you must attend at least 75% of the course and will complete a post-test onsite with a score of 70% or higher. The certificates will be populated in your myLearning account post-seminar.

How do I convert CEUs to PDHs?

1.0 CEU = 10 PDHs [Example: 0.1 CEU = 1 PDH]

Important Details About Your Seminar

Seminar Location:
American Society of Civil Engineers
1801 Alexander Bell Dr
Reston, VA 20191
703-295-6300
www.asce.org