论文部分内容阅读
为改进单纯的滑动摩擦隔震方法和推动隔震技术的实用化,研制了一种与滑动摩擦支承相匹配的弹塑性阻尼器,通过阻尼器控制隔震房屋的基底滑移。遵循反弯变形的软钢钢棒和控制钢棒曲率半径的制导装置组成阻尼器,其在水平面内的任何方向具有相同的恢复力特性,骨架曲线呈“后硬化”特点,使阻尼器具有耗能、缓冲、限位功能及抗疲劳特性,阻尼器在竖向尚有滑动的间隙和限位措施。因此,这种具有低屈服力和高极限抗力的阻尼器,成为隔震房屋的三维的fail—safe装置。
In order to improve the simple method of sliding friction isolation and promote the practical application of seismic isolation technology, an elasto-plastic damper matched with sliding friction bearings was developed. The damper controls the basement slip of the isolated building. The damper is composed of a reflexively deformed mild steel rod and a guidance device that controls the radius of curvature of the steel rod, and has the same restoring force characteristics in any direction in the horizontal plane. The skeleton curve is characterized by “post-hardening” and the damper has a loss. Energy, buffer, limit function and anti-fatigue properties, the damper has vertical sliding clearance and limit measures. Therefore, this kind of damper with low yield force and high ultimate resistance becomes a three-dimensional fail-safe device for isolated houses.