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介绍了一种新型组合耗能器,包括该耗能器的原理、构造及特点。对该耗能器进行了渐增位移往复加载试验和固定位移往复加载试验,以测定该耗能器的基本性能和疲劳性能。试验结果表明:该耗能器同时具有黏弹性阻尼器和软刚阻尼器的优点,当加载位移小于10 mm时,即小震或风振作用下,主要由黏弹性层产生剪切的变形耗能;当加载位移大于10 mm时,即中震或大震作用下,由软刚板和黏弹性材料共同耗散地震能量。试验加载结束后,在设计位移下,该耗能器剪切板未发生开裂破坏,在极限位移下,该耗能器剪切板开裂,产生不可恢复破坏。
A new combined energy dissipater is introduced, including the principle, structure and characteristics of the energy dissipater. The energy dissipater was subjected to incremental displacement reciprocating loading test and fixed displacement reciprocating loading test to determine the basic performance and fatigue performance of the energy dissipater. The experimental results show that the energy dissipater has the advantages of viscoelastic damper and soft just damper. When the load displacement is less than 10 mm, the deformation loss mainly caused by the viscoelastic layer under small vibration or wind vibration Can; When the load displacement is greater than 10 mm, that is, under the action of a moderate or strong earthquake, the soft rigid plate and the viscoelastic material jointly dissipate the seismic energy. At the end of the test loading, no crack damage occurs to the shear plate of the energy dissipater under the designed displacement, and under the limit displacement, the shear plate of the energy dissipater is cracked and irreparable damage occurs.