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Sponsored by ASCE's Structural Engineering Institute and ASCE Continuing Education.
INSTRUCTOR: Mohammad Aliaari, Ph.D., S.E., P.E., M.ASCE
Purpose and Background
ASCE 41-13 (Seismic Evaluation and Retrofit of Existing Buildings) is rapidly becoming the main standard being used for seismic evaluation and retrofit of existing buildings. Many building officials and jurisdictions have either adopted this standard or in the process of reviewing and adopting it. This standard is an update to earlier standard ASCE 41-06 and supersedes standard ASCE 31-03 by combining the two standards into one. However, it includes considerable changes and improvements over the predecessors.
The seismic evaluation and retrofit process per ASCE 41-13 consists of three tiers, including tier 1 screening procedure, tier 2 deficiency-based evaluation procedure, and tier 3 systematic evaluation procedure. It is recommended by this standard that a tier 1 screening procedure be performed first to quickly identify buildings and elements that comply with the provisions of this standard. A tier 1 screening also familiarizes the design professional with the building, its potentials deficiencies, and its potential behavior. Further evaluation using a tier 2 or tier 3 evaluation then focuses on the potential deficiencies identified in tier 1.
This webinar provides a brief and overall introduction to ASCE 41-13, followed by a detailed presentation about tier 1 screening procedure including an actual case study. It discusses in detail the evaluation requirements, performance objectives, seismic hazard levels, on-site investigation requirements, and other steps of a tier 1 screening procedure. Finally, a full tier 1 evaluation will be presented on a case study. This webinar provides participants with a practical and step-by-step instruction for performing a successful tier 1 screening procedure. The inclusion of a comprehensive case study will offer practical application of different sections and tables of the standard.
Primary Topics of Discussion
- Overview of ASCE 41-13, its scope and application
- Seismic evaluation process using a three-tiered system
- Performance objectives and seismic hazard
- Tier 1 screening procedure and limitations
- Selection and practical completion of checklist through a case study
Learning Outcomes
- Become familiar with the latest standard ASCE 41-13
- Demonstrate understanding of scope and purpose of ASCE 41-13
- Understand the criteria for selection of performance objective and seismic hazard for a Tier 1 evaluation
- Know the steps and procedure for a seismic evaluation using Tier-1 screening procedure
- Be able to essentially complete an appropriate Tier 1 checklist for structural and non-structural elements
Webinar Benefits
- Become familiar with the latest seismic evaluation standard ASCE 41-13
- Learn about the scope, limitation, and application of the standard
- Be able to perform a rapid tier 1 screening evaluation using checklists
- Perform a rapid seismic screening prior to (or in lieu of) unnecessary/costly detailed seismic evaluations
- Observe practical application of tier 1 evaluation on a case study
Intended Audience
- Civil and structural engineers
- Building officials
- Building owners/mangers
- Federal, State, and city agencies
- Building materials testing specialists
Webinar Outline
- Part 1: Tier 1 Screening Procedure
- Overview of ASCE 41-13
- Scope and application of standard
- Seismic evaluation process
- Selection of performance objectives
- Determination of seismic hazard
- Characterization of building types
- Tier 1 screening procedure
- As-built information and on-site investigation
- Benchmark buildings
- Tier 1 analysis procedure
- Tier 1 screening checklist selection and use
- Part 2: Case Study
- Description of case study
- Full Tier 1 screening evaluation for the case study
- Summary & Conclusions
- Questions