Test Study On Seismic Behavior Of Energy-saving Block & Invisible Multi-ribbed Frame Composite Walls With Window Opening

In order to achieve the performance based seismic design for Energy-Saving Block &Invisible Multi-Ribbed Frame Composite Walls with Window Opening. 1/2 model of 3 energy-saving block&invisible wall frame composite wall and 3 energy-saving block&invisible wall frame composite wall with window opening tested with quasistatic. Studies such wall failure process, failure modes, capacity, hysteretic behavior and energy performance. The influence of reinforcement ratio and window opening on hysteresis curves, skeleton curves, strength, stiffness and ductility were analyzed. Feature points parameter, the equivalent viscous damping coefficient, displacement ductility factor and shear resistance of formulas.The test results showed that: The failure mode of the specimens is mainly shear failure. The bearing capacity of the wall without a hole increases when the amount of wall reinforcement increases. The ductility factor of the wall without a hole decreases when the amount of wall reinforcement increases. The bearing capacity of the wall with window opening increases when the amount of wall reinforcement increases. The ductility factor of the wall with window opening decreases when the amount of wall reinforcement increases.Carrying capacity of the wall openings and ductility increases the amount of wall reinforcement increases. When the same reinforcement ratio at the same displacement, the equivalent viscous damping wall openings after declining. Under the same conditions, and the appropriate rib walls destructible wall ultra rib damage compared to the former of equivalent viscous damping coefficient is relatively small. Skeleton curve analysis test, proposed restoring force model for degenerate four-linear model, skeleton curve skeleton curve with the experimental results obtained are in good agreement proposal, can provide a reference for engineering calculations, can be positive saving block invisible window hole dense seismic response analysis of frame composite wall structure to provide a reference. Making rigid frame diagonal strut model, the maximum carrying capacity of this model with the experimental results agree well with the calculated. By saving block invisible dense seismic performance composite frame wall openings are studied analysis of factors affecting the bearing capacity of the wall, and then refer to the relevant norms, finally get to open holes and not open holes oblique section bearing capacity formulas to calculate the results are in good agreement with the experimental results.