Simplified Direct Displacement Design of Six-Story NEESWood Capstone Building and Pre-Test Seismic Performance Assessment

摘要

This report presents a simplified direct displacement design (DDD) procedure which was used to design the shear walls for a six-story woodframe structure. This structure, referred to as the NEESWood Capstone Building, was designed to meet four performance expectations: damage limitation, life-safety, farfield collapse prevention, and near-fault collapse prevention. A series of nonlinear time history analyses were performed using suites of both far-field and near-fault ground motion records to verify that design requirements were met. The distributions of inter-story drifts obtained from these time history analyses confirmed that the building met all four performance expectations, thereby validating the DDD procedure. Additionally, collapse analysis in accordance with the Applied Technology Council project 63 (ATC-63) methodology was performed. The results of incremental dynamic analyses confirmed that the building had an adequate capacity or margin against collapse, as dictated by the ATC-63 methodology.