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本文通过地震模拟振动台试验研究用耗能减震装置修复震后有损伤钢筋混凝土框架的效果和可行性。文中制作了两层和三层两座钢筋混凝土剪切型框架,首先进行了地震损伤模拟试验;其次提出了震后有损伤结构的参数识别方法、修复准则和修复用耗能减震装置的设计准则;在此基础上,采用了软钢屈服型耗能器对两座试验框架在地震损伤后进行修复,并再次对修复后的框架模型进行地震模拟试验,证实了采用这种修复措施可以恢复震后有损伤结构的抗震能力。
In this paper, the seismic simulation shaking table test is used to study the effect and feasibility of using energy-absorbing and shock-absorbing devices to repair post-earthquake damaged reinforced concrete frames. Two-story and three-story two-story reinforced concrete shear frames were made in this paper. Firstly, earthquake damage simulation tests were carried out. Then, parameters identification methods, repair criteria, and energy-saving damping devices for repairing damaged structures after earthquakes were proposed. On this basis, a soft steel yield energy absorber was used to repair the two test frames after the earthquake damage, and the repaired frame model was again subjected to a seismic simulation test, confirming that this restoration measure can be used to recover After the earthquake, there is damage to the structure’s earthquake resistance.