Keywords: Direct displacement design (DDD). NEESWood Capstone Building. Seismic performance. Multistory structures. Woodframe structures. Residential structures. Shear walls. Interstory drift limits. Nonlinear time-history analyses.
Abstract: This report presents a simplified direct displacement design (DDD) procedure which was used to design the shear walls for a six-story woodframe structure. The building will be tested in the final phase of a Network for Earthquake Engineering Simulation (NEES) project. Specifically, NEESWood Capstone Building was designed to meet four performance expectations: damage limitation, life-safety, far-field collapse prevention, and near-fault collapse prevention. The performance expectations are defined in terms of combinations of inter-story drift limits and prescribed seismic hazard levels associated with predefined non-exceedance probabilities. The distributions of inter-story drifts obtained from the NLTHA confirm that the Capstone Building designed using DDD meets all four target performance expectations, thereby validating the DDD procedure.