基于形状记忆合金阻尼器的溷凝土框架结构减振分析.pdfVIP

36 4 Sichuan Building Science 2010 8 158 基于形状记忆合金阻尼器的混凝土框架结构减振分析 杨 慧, 陈国平, 罗小惠, 母恩喜 (, 621010) :, , NSYS, ,, , ,,, , , , , ,, , ; 42%, 31% ,, , :; ;;; : TU3521 : : 1008- 1933( 2010) 04- 158- 04 Energy dissipation of fram e construction w ith shape m em ory alloy Y NG Hu,i CHEN Guoping, LUO X iaohui, MU Enxi ( SchoolofCivilEngineering and rchitecture, SouthwestUniversity ofScience andTechnology,M ianyang 621010, China) A b stract: W ith the development of material science, being a new materia,l Shape M emory lloys ( SM ) has a good application prospect in structure engineering; its use also offers a new approach for the structural vibration contro.lHence, the study on the SM dampers and the structural vibration controlw ith these dampers has considerable value. It also analyses blasting damage theory of bedded rock under the situation blast hole axis is vertical to or horizontalw ith stratification plane and blast gas wedge principal of bedded rock. From the expermi ental restoring force curve, the damping coefficient and stiffness of damper are calculated. Based on these parameters of the damper, finite elementmethod is adopted to smi ulate the earthquake response of the frame model, controlled and uncontrolled by SM dampers. The numericalresults illustrate that the earthquake response displacement of the frame is reduced greatly and its vibration decay rate is increased effectively after the developed SM dampers are fixed in it. Such type ofSM damper is a good device to dissipate energy and to reduce the vibration of the structures. K ey w ords: frame construction; shape memory alloy; damper; seism ic control; finite element 0