Development and performance assessment of damage-resistant steel buildings utilizing friction behaviors between column base and foundation

为了开发柱基础在强震作用下可以滑动的抗损伤钢结构建筑，进行了一系列的振动台试验。首先，对普通钢柱与基层砂浆之间的摩擦性能进行了评估。其次，对铸铁柱进行了分析，阐明了其较低的摩擦系数。由石墨层支撑的柱基也进行了低摩擦系数的测试。再次，验证了制动器减小滑差漂移的条件。最后，通过反映试验结果的动力反应分析，对原型建筑的抗震性能进行了分析，并对所提出的结构体系的抗震性能进行了评估。

A series of shaking table tests were conducted in order to develop the damage-resistant steel buildings whose column bases can slip when subjected to strong earthquake motions. First, the friction behaviors between conventional steel column and base mortar were estimated. Second, a cast-iron column was examined, and its low coefficient of friction was clarified. A column base supported by a graphite layer was also examined for a low coefficient of friction. Third, conditions of stopper to reduce the slip drift were verified. Finally, seismic performance of a prototype building was considered by the dynamic response analysis reflecting the test results, and a method to assess the seismic performance was studied for the proposed structural system.