Performance-based seismic design of a multi-tower conjoined high-rise structure
A multi-tower conjoined high-rise building is composed of three high-rise buildings with different heights and high-level steel structure connectors.The friction pendulum isolation bearing is set between the connector and the main structure,and the viscous damper is set at the position where the bearing displacement is large.The overall structure was modeled and analyzed considering the nonlinearity of the bearing,and the simulation results were compared with the simulation results of the single tower independent model.The results show that the weak connection selected in the design effectively reduces the influence of the connector on the main structure,and the seismic response of each tower is reduced by setting the friction pendulum isolation bearing and the viscous damper.Finally,the dynamic elastic-plastic time history analysis of the overall structure was carried out,and the displacement and layer shear force of the structure,the response of the friction pendulum isolation bearing and the damper and the damage change process of the components were studied.The results show that the overall structure,friction pendulum isolation bearing,viscous damper and structural components all meet the predetermined seismic performance design objectives.The elastic-plastic response and failure mechanism of the multi-tower structure under rare earthquakes meet the requirements of seismic conceptual design of structural engineering.
NETL
NSTL
万方数据
维普
