Rocking Wall-Floor-Column Subassemblage Pseudo-Static Cyclic Test at NEES@UMN (MAST) Specimen 1

A large scale subassemblage test was conducted at NEES@UMN (MAST) to investigate the “rigid” wall‐floor connection concept and the interaction of the rocking wall with the surrounding structural systems, including slabs and columns. The quasi‐static nature of MAST prevents investigation of dynamic energy losses associated with wall rocking. Test was conducted on 1/3‐scale portions of the prototype structures featuring PreWEC systems attached to one story 10’x20’ floor diaphragm in plan. Steel beams W 10X30 were utilized in the test to emulate the five-story missing floors of the prototype structure above the first story floor. Lateral drift up to 5% was applied to the specimen. The PreWEC and floor were extensively instrumented to observe the specimen behavior including 133 strain gauges, 70 Linear Variable Differential Transformer (LVDT) devices, 36 String Pots and 13 load cells. Test results will be used to evaluate the performance of the PreWEC and floor systems and the analytical models.