VALIDATION OF THE NEESWOOD PBSD PROCEDURE: TESTING OF A FULL-SCALE SIX-STORY BUILDING AT JAPAN'S E-DEFENSE

摘要

The NEESWood project was a four-year five-university project whose objective was to provide the technical support to safely increase the height of light-frame wood buildings to six stories through the development of a performance-based design philosophy. The project culminated with a series of tests called the Capstone tests. The Capstone test program has two major objectives: (1) To help validate the performance-based seismic design philosophy developed during the project; and (2) To provide a better understanding of the seismic behavior of existing four and five story light-frame wood buildings in the western United States. This paper focuses on objective (1) by comparing the response and overall performance of the building during tri-axial shake table tests on the worlds' largest shake table to the performance expectations set out during the design process. The Capstone building has several configurations, with the focus in the paper on the 12.5-m x 18-m x 18-m tall six-story apartment building with 23 one- and two-bedroom living units for a total of 36 bedrooms and a total of 1350 sq meters (14000 sq ft) of living space. The building was subjected to various scaling of the Northridge Canoga Park tri-axial earthquake record with the largest being an MCE level event. The six-story building includes a continuous rod hold down system throughout its six levels of stacked wood shear walls.