Semi-active fuzzy control for seismic response reduction of building frames using SHD dampers (pages 417–435)

摘要

In this paper, a fuzzy rule-based semi-active control of building frames using semi-active hydraulic dampersn(SHDs) is presented. The SHDs are installed between the top of a Chevron bracing and the upper beam onneach story to prevent damage to the structure from severe earthquakes. The set of Chevron brace and SHDnis modeled as a Maxwell element that consists of a damping element in series with a spring. The rulenextraction strategy for semi-active fuzzy control is carried out by genetic algorithm (GA). The objective isnto minimize both the maximum inter-story drift and absolute acceleration responses of the structure.nInteractive relationships between structural responses and damping coefficients of SHDs are established bynusing a fuzzy controller. GA is employed as an adaptive method to design the fuzzy controller, which isnhere known as a genetic fuzzy controller (GFC). To illustrate the efficiency of the proposed intelligentncontrol strategy in application, numerical simulation for a 3-story and a 10-story building frame equippednwith multiple dampers is presented. Copyright r 2011 John Wiley & Sons, Ltd.