ABSTRACT
The seismic response of the top wood structure is enlarged in wood-concrete hybrid structure. To reduce the seismic damage and inherit Dou-Gong, a wood isolation device was developed and installed between the upper wood and lower concrete structure forming an inter-story isolation system. Considering the sidespan request, a T-shape wood isolation device was designed, in which a mortise-tenon connection was introduced to keep its stability. Its static bearing capacity, working behavior and energy-dissipation were analyzed by ABAQUS. The influence of some factors on the energy-dissipation was explored using the orthogonal method. The results indicate that this isolator had a good energy-dissipation capacity using friction-slip and nonlinear material deformation. Model scale was the most important factor influencing the energy-dissipation, and then vertical pressure, friction coefficient, slip displacement followed. This research provides a new way to degrade the seismic response of wood-concrete hybrid structure, and has a potential application in practical engineering.
