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Seismic Vulnerability Assessment of a Non-Ductile Reinforced Concrete Shear Wall Building

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Conference

2018 ASEE Mid-Atlantic Section Spring Conference

Location

Washington, District of Columbia

Publication Date

April 6, 2018

Start Date

April 6, 2018

End Date

April 7, 2018

Page Count

9

DOI

10.18260/1-2--29483

Permanent URL

https://peer.asee.org/29483

Download Count

552

Paper Authors

biography

Felipe J. Perez California State Polytechnic University, Pomona

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Dr. Felipe Perez is an Associate Professor of structural engineering in the Civil Engineering Department at California State Polytechnic University, Pomona. As civil engineering curriculum chair and coordinator of semester conversion, he successfully led the conversion of the civil engineering curriculum from a quarter system to a semester system. He is a member of the American Society of Civil Engineers (ASCE), the American Concrete Institute (ACI), the Precast/Prestressed Concrete Institute (PCI), the Earthquake Engineering Research Institute (EERI), and was the Secretary of the Seismology Committee for the Structural Engineers Association of Southern California.

Dr. Perez is an expert in large-scale testing and analysis of unbonded post-tensioned precast concrete seismic systems. His research interests are in the seismic analysis and design of reinforced concrete, prestressed concrete, and steel structures.

Dr. Perez is a registered Professional Engineer in the State of California.

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biography

Yasser Salem Cal Poly Pomona

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Yasser S. Salem is Associate Chair of Civil Engineering Department at California State Polytechnic University Pomona (CPP); He is the Director of Assessment at the College of Engineering. He successfully oversaw the merge of the construction engineering program to the civil engineering department. He is a program evaluator at Accreditation Board for Engineering (ABET). He is a member of the American Concrete Institute (ACI) Committee 351 foundation for equipment and Machinery. He is also the member of the American Society of Civil Engineers (ASCE) Task Force on Large Turbine Generator Foundations.

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Abstract

This paper presents results of a capstone senior project at California State Polytechnic University, Pomona. Students conducted a vulnerability assessment of a five-story building constructed in Southern California. The structure has non-ductile concrete shear walls at the core and gravity frames at the perimeter. Partial infilled walls exist within the perimeter frames, creating captive columns. Students studied as-built plans for the structure and conducted an assessment of the building based on FEMA-310. They modeled the structure in ETABS and performed an analysis under combined gravity and lateral loads. The students identified the most vulnerable structural elements in the building. They proposed a retrofit scheme to mitigate the risk of collapse due to seismic loading, which includes adding supplemental reinforced concrete shear walls to reduce torsion, shotcreting to increase wall shear capacities, saw-cutting infill walls, and fiber wrapping to increase the shear capacity of vulnerable perimeter columns.

Perez, F. J., & Salem, Y. (2018, April), Seismic Vulnerability Assessment of a Non-Ductile Reinforced Concrete Shear Wall Building Paper presented at 2018 ASEE Mid-Atlantic Section Spring Conference, Washington, District of Columbia. 10.18260/1-2--29483

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