| The mild steel damper is one of the seismic energy dissipation devices in passive control, which has a stable and reliable performance, and also does well in energy dissipating. The shear panel damper is a device whose features are simple structure and stable performance, meanwhile the low-yield steel has good ductility, which is the ideal material for energy dissipation. In this thesis, BLY100 low-yield steel is used to research and develop a high-performance shear panel damper, which may has the same initial stiffness, and also can be taken into the yield stage in a small deformation to absorb the energy inputting to the structure. It has a better energy dissipating performance than that which is made of ordinary mild steel, and owns a broad application prospect.Firstly, seven different types of dampers are designed after analyzing their structural form and damping mechanism. They are numerically simulated by ANSYS to analyze the characteristics of the energy dissipation, buckling deformation and strain distribution in different parameters, which can provide a necessary reference for design.Secondly, three types of them are studied by cyclic loading test, the results show that the dampers have good energy dissipation and shear deformation capacity. The damper with larger flange has better hysteretic behavior, and approximately consistent with the ANSYS analysis conclusions.In summary, the high-performance shear panel damper made of BLY100 low-yield steel is a new seismic energy dissipation device whose features are good energy dissipation and shear deformation capacity, simple structure, easy making and so much. |
