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Seismic Analysis of Building Structures Content Outline

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    Course Schedule

    Week 1: Introduction and Basic Structural Dynamics

    Learning Outcomes:

    • List and summarize the four seismic analysis methods in ASCE 7
    • Identify the important characteristics of structures related to dynamic analysis. 
    • Describe the basic process for solving structural dynamics problems. 

    Topics:

    • Seismic Analysis Methods in ASCE 7 
    • Single Degree of Freedom Structural Dynamics  
    • Multi Degree of Freedom Structural Dynamics

    Week 2: Structural Dynamics and ASCE 7 Analysis Methods

    Learning Outcomes:

    • Differentiate between a response history plot from an individual dynamic analysis of a structure and a response spectrum used for determining structural response.
    • Employ a response spectrum to determine a maximum response given the system characteristics. 
    • Identify and explain the inherent assumptions and the manner to consider inelastic response in the four seismic analysis methods. 

    Topics:

    • Response History versus Response Spectrum
    • Seismic Analysis Methods, their limitations and process
    • Additional topics in Structural Dynamics

    Week 3: Modeling Considerations Part 1

    Learning Outcomes:

    • Construct a computational model including the required structural elements for a seismic load analysis.
    • Implement the modeling procedures for rigid and semirigid diaphragm behavior in a 3-D structural analysis model.
    • Discuss the issues related to including or excluding nonstructural components in the mathematical model.
    • Calculate and apply the correct seismic mass to a structural analysis model.

    Topics:

    • Modeling Structural Elements for Seismic Load Analysis
    • Modeling Diaphragms in 3-D Seismic Analysis Models
    • Including Seismic Mass in Analysis Models

    Week 4: Modeling Considerations Part 2

    Learning Outcomes:

    • Correctly apply lateral forces to structures with rigid and semirigid diaphragms. 
    • Assess the importance of P-Delta effects by including such effects directly in the analysis. 
    • Qualitatively assess a structure to determine when vertical accelerations would be required for seismic design. 
    • Correctly implement inherent damping in a computational model for linear response history analysis.

    Topics:

    • Including seismic forces and P-Delta effects in a seismic model
    • Inherent damping in structures
    • Vertical effects
    • Overview of Seismic Isolation and Supplemental Damping

    Week 5: Seismic Loading

    Learning Outcomes:

    • Describe the impact of site conditions and site distance on seismic response of structures.
    • Specify the criteria for selecting ground motion recordings for use in a response history analysis.
    • Modify ground motion recordings using either amplitude scaling or spectrum matching based on the design response spectrum or a site-specific response spectrum.

    Topics:

    • Seismic Loading of Structures
    • Response Spectrum
    • Ground Motion Record Selection and Modification

    Week 6: Overview of ASCE 7-16 Analysis Requirements

    Learning Outcomes:

    • Correctly select the appropriate analysis procedure.
    • Implement the load combinations with seismic effects including the effects of orthogonal combination into an analysis model.
    • Evaluate a structure to determine whether the redundancy factor, ρ , is 1.0 or 1.3. 

    Topics:

    • Load Combinations with Seismic Effects
    • Selection of Analysis Procedure
    • Effective Seismic Weight and Structural Modeling

    Week 7: Unified Linear Dynamic Analysis Part 1

    Learning Outcomes:

    • List the procedural steps for Modal Response Spectrum and Linear Response History Analysis.
    • Identify and describe the similarities between MRS and LRH analysis, and how these can be used to formulate a “Unified” approach.
    • Select the correct number of modes based on the effective modal mass in a dynamic analysis to capture the response.

    Topics:

    • Unified Linear Dynamic Analysis
    • Modal Response Spectrum and Linear Response History Analysis Overview
    • Similarities and Differences between MRS and LRH

    Week 8: Unified Linear Dynamic Analysis Part 2

    Learning Outcomes:

    • Identify and describe the similarities between MRS and LRH analysis, and how these can be used to formulate a “Unified” approach.
    • Select and modify ground motions for use in the Linear Response History Analysis method.
    • Scale and combine results from orthogonal directions in the MRS and LRH.

    Topics:

    • Addressing Differences between MRS and LRH
    • Ground Motion Selection and Modification
    • Inherent Damping
    • Scaling and Combining Orthogonal Direction Results

    Week 9: Development of Detailed Mathematical Model

    Learning Outcomes:

    • Calculate the base shear and story forces using the Equivalent Lateral Force Method. 
    • Build and analyze a computational model in accordance with the Equivalent Lateral Force Method to determine force and drift demands under seismic loads.
    • List and define the conformance checks required of all the analysis methods.

    Topics:

    • Detailed Example Structure Description
    • Implementation of the Equivalent Lateral Force method for Case Study
    • Conformance Checks required for all Analysis Methods

    Week 10: Modal Response Spectrum

    Learning Outcomes:

    • Select the number of modes required by ASCE 7 to adequately capture total response using Modal Response Spectrum Analysis.
    • Build an analysis model consistent with ASCE 7 requirement for Modal Response Spectrum Analysis. 
    • Calculate the seismic demands for a structure using the Modal Response Spectrum Analysis Method.

    Topics:

    • Design Spectrum and Modal Properties
    • Determining Modal Responses
    • Combining Modal Responses 
    • Scaling Total Response to ELF Base Shear 

    Week 11: Linear Response History

    Learning Outcomes:

    • Select and modify ground motions for linear response history analysis using appropriate tools based on the design response spectrum. 
    • Build a structural analysis model consistent with the requirements for Linear Response History Analysis.
    • Calculate the seismic force and deformation demands on a structure using the Linear Response History Analysis method. 

    Topics:

    • Selection and Modification of Ground Motion Records
    • Analysis and Modeling Details for Linear Response History 
    • Results of LRH Analysis

    Week 12: Analysis Results Comparison and Floor Response Spectra

    Learning Outcomes:

    • Identify the differences in results computed using the Equivalent Lateral Force, Modal Response Spectrum, and Linear Response History Analysis methods.
    • Describe the process for determining floor response spectra that can be used for design of nonstructural components and systems.
    • Calculate seismic forces on nonstructural elements using Floor Spectra.

    Topics:

    • Comparison of Analysis Method Results
    • Developing Floor Response Spectra
    • Calculating seismic forces for Nonstructural Components using Floor Spectra 

    This course outline is subject to change

    Dates and registration coming soon — Let me know when registration opens

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