Performance assessment of tall concrete core‐wall building designed using two alternative approaches

Abstract

SUMMARY Concrete core‐wall structural systems are prevalent for high‐rise residential buildings in the West Coast of the United States. To assess the seismic performance characteristics of this system, a 42‐story core‐wall residential building was designed for a site in Los Angeles, CA. The building was designed using two different design approaches. The first design followed prescriptive requirements of US building codes, except height limits were disregarded. The second design followed a performance‐based procedure. Analytical models of each design were subjected to a series of earthquake ground motions representative of very frequent to very rare shaking intensities. Effectiveness of the various design methods is assessed considering structural performance indices, initial costs, and repair costs associated with anticipated earthquake ground shaking. The results illustrate the seismic performance potential of this structural system and demonstrate the application of a practical seismic performance assessment approach for buildings. Copyright © 2012 John Wiley & Sons, Ltd.

Energy-Based Seismic Risk Evaluation of Tall Reinforced Concrete Building in Vancouver, BC, Canada, under Mw9 Megathrust Subduction Earthquakes and Aftershocks

“…This observation is in agreement with Goda and Taylor (2012) and Goda et al (2015). Under the considered ground motions, the shear wall core structure remains to be mainly in the linear elastic range, and this indeed reiterates that the shear walls RC cores are not vulnerable (e.g., Yang et al, 2012). For this reason, the subsequent investigations focus upon the seismic damage evaluation of the plastic zone, gravity columns (first to third stories), header beams (second to fourth stories), and shear walls (first to fourth stories) based on the energy-based damage index; see Figure 2.…”

“…Nevertheless, important improvements can be made with regard to use of ground motion records that are applicable to megathrust interface records from the Cascadia subduction zone, noting that the records used by Koduru and Haukaas (2010) were calibrated based on shallow crustal records. On the other hand, adopting PEER's performancebased earthquake engineering (PBEE) framework (Cornell and Krawinkler, 2000), Yang et al (2012) carried out a seismic loss assessment for a 42-story RC dual-system building, i.e., a centrally located core wall building with perimeter special momentresisting frames. With a design earthquake intensity level, the maximum interstory drift ratio (MaxISDR) calculated was less than 2%.…”

Seismic performance of reinforced concrete dual-system buildings designed using two different design methods

“…However, whether buildings designed according to a performance-based approach actually perform equivalent to, or better than, buildings designed using current prescriptive code requirements via direct comparison was still uncertain. Such comparison was made by Yang et al (2012) for core wall only systems, while comparison of different structural systems (core wall only system versus dual-system) was studied and reported in Deger et al (2014). This paper, on the other hand, explicitly compares code-based design and performance-based design of dual-system buildings with a particular emphasis on frame behavior.…”

Performance‐based seismic design of an irregular tall building in Istanbul

“…In the study by Yang et al . (), to assess the seismic performance characteristics of concrete core wall structural systems, a 42‐story core wall residential building was designed for a site in Los Angeles. The building was designed using two different design approaches.…”