Collapse simulation of steel moment frame by distributed online hybrid test with multiple tests

Abstract

Peer-to-Peer Internet online hybrid test system is one of the appealing hybrid test systems developed recently and has been demonstrated to be valid and capable of handling multiple numerical nonlinear substructures. However, its feasibility to accommodate multiple tested substructures had not been applied. To explore this possibility, a one-bay four-story steel planar moment-resisting frame is analyzed. Two column bases of the frame are taken as the tested parts, while the superstructure is analyzed by ABAQUS. The three substructures are distributed to three different locations and connected through Internet. The plastic rotations of the two column bases arc treated as boundary displacements. The system run successfully without any malfunction, and the concurrent implementation of the two tested substructures is found effective. The feasibility and stability is demonstrated for the Peer-to-Peer system to handle multiple tested substructures involving significant deterioration of resistance in part of the structure.