Investigation of the Seismic Behavior and Analysis of Reinforced Concrete Structural Walls

Abstract eng:
Reinforced concrete structural walls are commonly used as the primary lateral-load resisting system in buildings. The research presented herein represents the first-phase of a multi-year research effort aimed at developing tools to enable performance-based earthquake engineering (PBEE) of structural walls. The first-phase of the research effort focused on the seismic behavior and analysis of slender planar walls. To design the experimental investigation, including a prototype specimen and test matrix, the following steps were taken: 1) drawings for 18 walls from 10 buildings designed for construction on the west coast since 1991 were reviewed to determine representative design details, 2) practicing engineers were consulted to establish the wall design process for the test specimens, 3) the results of previous experimental studies were reviewed to determine the parameters that control response, and 4) elastic, effective-stiffness analyses of a representative 10-story building were conducted to determine representative load patterns. These results are used to support experimental testing of wall sub-assemblages which will be conducted using the NEES MUST-SIM facility. The results of previous studies and data from numerical simulation were used to design an instrumentation layout that would fully utilize the advanced instrumentation available at the NEES facility. The experimental investigation is being complemented by an analytical investigation. Data generated from testing and analysis will provide for an improved understanding of wall behavior, provide a basis for advancing simulation and design of walls, and be used to support the subsequent phases of the research effort, and address different wall configurations.

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