Full‐scale shaking table test for examination of safety and functionality of base‐isolated medical facilities
Full‐scale shaking table test for examination of safety and functionality of base‐isolated medical facilities
复制标题
DOI：
10.1002/eqe.1097
复制
发表时间：
2011-10
影响因子：
4.5
通讯作者：
E. Sato;Sachi Furukawa;A. Kakehi;M. Nakashima
中科院分区：
文献类型：
--
作者：
E. Sato;Sachi Furukawa;A. Kakehi;M. Nakashima
使用 E-Defense 振动台设施在基础隔离的四层 RC 医院结构上进行了一系列全尺寸振动台测试。各种家具、医疗用具和服务设施都以尽可能真实的方式放置在医院标本上。采用四种地震动，包括记录的近断层地震动和合成的长周期、长历时地震动。测试结果表明，由于地板加速度响应显着降低，基础隔震系统能够非常有效地抵抗近断层地震动，并且与相应基础固定系统观察到的情况相比，医院服务的可操作性和功能性显着提高。然而，在长期地面运动的情况下，医院的服务很难维持，这主要是因为由脚轮支撑的家具和医疗器械的剧烈运动。共振加剧了基础隔离系统地板上的大位移和速度，导致此类家具和医疗器械滑动，有时超过 3 m，导致偶尔与其他家具或周围隔墙发生碰撞。值得注意的是，保持医疗设施功能的关键是牢牢锁定家具和医疗器械的脚轮。版权所有 © 2011 约翰·威利父子有限公司
A series of full‐scale shaking table tests are conducted using the E‐Defense shaking table facility on a base‐isolated four‐story RC hospital structure. A variety of furniture items, medical appliances, and service utilities are placed on the hospital specimen in as realistic a manner as possible. Four ground motions are adopted, including recorded near‐fault ground motions and synthesized long‐period, long‐duration ground motions. The test results show that the base‐isolated system performed very effectively against near‐fault ground motions due to significant reduction in the floor acceleration response, and operability and functionality of the hospital service is improved significantly as compared with the case observed for the corresponding base‐fixed system. Against the long‐period ground motion, however, the hospital service is difficult to maintain, primarily because of the significant motion of furniture items and medical appliances supported by casters. Resonance accentuated large displacements and velocities on the floors of the base‐isolated system, which causes such furniture items and medical appliances to slide, sometimes more than 3 m, resulting in occasional collision with other furnitures or against the surrounding partition walls. It is notable that a key to maintaining the function of the medical facilities is to securely lock the casters of furniture and medical appliances. Copyright © 2011 John Wiley & Sons, Ltd.