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Seismic Evaluation and Retrofit of Existing Buildings Course Outline

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    Week 01: History of Earthquake Engineering and Performance-Based Seismic Design

    Outcomes:

    • Summarize the history of earthquake engineering with respect to when hazards posed by specific existing building systems were identified.
    • Describe how earthquake hazards are characterized and what parameters are used to assess existing buildings.
    • Identify different building earthquake performance levels and what is appropriate for a given building.

    Topics:

    • History of Earthquakes in the US and how they have exposed vulnerabilities with different construction practices
    • Earthquake hazards and engineering parameters associated with them
    • Structural and nonstructural performance levels for buildings

    Week 02: Fundamental Concepts of Seismic Evaluation and The ASCE 41 Standard

    Outcomes:

    • Describe the outline of the ASCE 41 Standard and explain the different ways it can be used to identify and mitigate earthquake hazards in existing buildings.
    • Explain the fundamental concepts of displacement-based design and how it is used in the ASCE 41 standard.
    • Correctly identify the differences between force and deformation-controlled elements and be able to classify elements of a building appropriately.
    • Identify which structural elements are primary lateral force resisting elements and which are secondary elements in common building systems to classify elements of a building appropriately. 

    Topics:

    • Outline of the ASCE 41 Standard
    • Deficiency-based versus systematic evaluation methodologies
    • Capacity-based design principals
    • Displacement-based design

    Week 03: Deficiency-Based Seismic Evaluation and Retrofit

    Outcomes:

    • Explain the basis for the deficiency-based procedures in ASCE 41 and how apply the procedures to existing structures.
    • Successfully use the ASCE 41 Tier 1 checklists to screen for potential deficiencies.
    • Correctly transition from a Tier 1 screening to a Tier 2 deficiency-based evaluation or retrofit.

    Topics:

    • Introduction to deficiency-based procedures
    • The Tier 1 Screening process
    • The Tier 2 Deficiency-only evaluation
    • Deficiency-based retrofit methods

    Week 04: Seismic Evaluation and Retrofit of Steel Moment Frame Buildings

    Outcomes:

    • Correctly identify common deficiencies in steel moment frame buildings.
    • Explain what pre-Northridge beam-column connections are and how to effectively retrofit them.
    • Determine if a frame’s columns have sufficient robustness to prevent global instability during earthquakes.
    • Name three different of methods that can be used to retrofit steel moment frame structures.

    Topics:

    • Summary of common seismic deficiencies with steel moment frame buildings
    • Northridge Earthquake damage to steel moment frame buildings
    • Column stability and splice deficiencies
    • Retrofit of steel moment frame buildings 

    Week 05: Seismic Evaluation and Retrofit of Steel Braced Frame Buildings

    Outcomes:

    • Identify the three most common deficiencies in older steel braced frame buildings.
    • Learn how to determine if a building frame’s braces have sufficient robustness to resist the given earthquake forces.
    • Determine if a frame’s columns have sufficient robustness to prevent bucking during an earthquake.
    • Develop the knowledge to retrofit steel braced frame structures using three different approaches.

    Topics:

    • Summary of common seismic deficiencies with steel braced frame buildings
    • Brace and brace connection deficiencies
    • Column stability and splice deficiencies
    • Retrofit of steel braced frame buildings 

    Week 06: Seismic Evaluation and Retrofit of Reinforced Concrete Moment Frame Buildings

    Outcomes:

    • Identify the two most common deficiencies in reinforced concrete moment frame buildings.
    • Determine if columns have adequate reinforcement based on the building site’s level of seismicity.
    • Explain how to implement two methods to retrofit concrete moment frame buildings.

    Topics:

    • Summary of common seismic deficiencies with reinforced concrete frame buildings
    • Column deficiencies
    • Beam deficiencies
    • Joint region deficiencies
    • Slab-column frame systems
    • Retrofit of reinforced concrete moment frame buildings 

    Week 07: Seismic Evaluation and Retrofit of Reinforced Concrete Wall Buildings

    Outcomes:

    • Identify two most common deficiencies in reinforced concrete wall buildings.
    • Evaluate if a concrete wall is shear or flexure controlled.
    • Describe why an insufficient number walls in a building puts the gravity framing at risk of collapse.
    • Develop the knowledge to apply two common methods to retrofit concrete wall buildings.

    Topics:

    • Summary of common seismic deficiencies with reinforced concrete wall buildings
    • Deformation compatibility and secondary framing
    • Retrofit of reinforced concrete wall buildings 

    Week 08: Seismic Evaluation and Retrofit of Wood Framed Buildings

    Outcomes:

    • Identify two most common deficiencies in wood framed buildings.
    • Evaluate if a wall has sufficient nailing and proper hold downs for a given earthquake intensity.
    • Describe if the floor or roof diaphragm provides sufficient load path to the walls under earthquake forces.

    Topics:

    • Summary of common seismic deficiencies with wood framed buildings
    • Wood shear wall deficiencies
    • Configuration irregularities in wood buildings
    • Retrofit of reinforced wood buildings 

    Week 09: Seismic Evaluation and Retrofit of Unreinforced Masonry Buildings

    Outcomes:

    • Identify three most common deficiencies in unreinforced masonry buildings.
    • Describe the most appropriate of the three evaluation procedures in ASCE 41 for URM building.
    • Explore retrofit options for out-of-plane and in-plane wall deficiencies in unreinforced masonry buildings.

    Topics:

    • Summary of common seismic deficiencies with wood framed buildings
    • Unreinforced masonry wall out-of-plane deficiencies
    • Unreinforced masonry wall in-of-plane deficiencies
    • Retrofit of reinforced wood buildings 

    Week 10: Seismic Evaluation and Retrofit of Reinforced Masonry and Concrete Tilt-Up Buildings

    Outcomes:

    • Identify the most common deficiency in rigid wall / flexible diaphragm buildings.
    • Learn how to use the deficiency-based procedure to provide a cost-effective retrofit solution for a concrete tilt-up wall building.

    Topics:

    • Summary of common seismic deficiencies with rigid wall / flexible diaphragm buildings
    • Wall out-of-plane anchorage deficiencies
    • Wall out-of-plane issues
    • Roof diaphragm issues
    • Retrofit of rigid wall / flexible diaphragm buildings

    Week 11: Seismic Evaluation and Retrofit of Foundation Systems

    Outcomes:

    • Identify two common seismic deficiencies with foundation systems.
    • Explore if fixed-based or flexible-base modeling assumptions are appropriate for a specific building.
    • Explain how soil-structure interaction effects affect the seismic response of a structure and when to use them in a building evaluation.
    • Evaluate liquefaction effects on structures based on the three step procedure in ASCE 41.

    Topics:

    • Summary of common seismic deficiencies with foundation systems
    • Incorporating foundation flexibility in to analysis models
    • Soil structure interaction
    • Liquefaction effects                               

    Week 12: Seismic Evaluation and Retrofit of Nonstructural Components

    Outcomes:

    • Learn how to screen for nonstructural seismic deficiencies using ASCE 41 Tier 1 procedure.
    • Describe and identify nonstructural life safety hazards and hazards that can affect building function.
    • Explain how a building structural retrofit can be used to improve nonstructural performance.

    Topics:

    • Summary of common 'what are nonstructural' components
    • Life safety hazards
    • Position Retention Nonstructural performance
    • Operational Nonstructural performance
    • Retrofit of nonstructural components
    • Building retrofits to mitigate nonstructural performance

    Register Now

     

    If you are not currently logged into ASCE, you will be asked to login or create an ASCE account.

    This course outline is subject to change

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