摩(mo)擦滑移(yi)隔(ge)(ge)震是開發(fa)應(ying)(ying)用(yong)較(jiao)早的隔(ge)(ge)振技術之(zhi)一(yi)(yi)，所用(yong)的摩(mo)擦材料(liao)多為(wei)沙石、石墨等(deng)廉價(jia)材料(liao)，標記經濟且簡(jian)單易(yi)行。摩(mo)擦滑移(yi)隔(ge)(ge)震系(xi)(xi)統(tong)(tong)通常有隔(ge)(ge)離地震作用(yong)的摩(mo)擦滑動(dong)(dong)機(ji)構和(he)限位(wei)復(fu)位(wei)的阻(zu)尼(ni)向心機(ji)構組成，多為(wei)平面滑移(yi)隔(ge)(ge)震系(xi)(xi)統(tong)(tong)。該系(xi)(xi)統(tong)(tong)不(bu)能自(zi)(zi)動(dong)(dong)復(fu)位(wei)，一(yi)(yi)般需要另(ling)外加設(she)復(fu)位(wei)裝(zhuang)(zhuang)置，且滑動(dong)(dong)性能離散性大、不(bu)易(yi)控制(zhi)，滑移(yi)量(liang)過大可(ke)能導致(zhi)穿越隔(ge)(ge)震層(ceng)的非(fei)結構構件破壞，甚至可(ke)能發(fa)生滑移(yi)失(shi)穩，這(zhe)極(ji)大地阻(zu)礙了滑移(yi)隔(ge)(ge)震的發(fa)展。為(wei)了解決平面滑移(yi)系(xi)(xi)統(tong)(tong)不(bu)能自(zi)(zi)動(dong)(dong)復(fu)位(wei)問題，Zayas等(deng)于(yu)1985年(nian)在(zai)美國(guo)加州(zhou)大學伯克利分校研發(fa)了摩(mo)擦擺隔(ge)(ge)震裝(zhuang)(zhuang)置，稱(cheng)之(zhi)為(wei)摩(mo)擦擺系(xi)(xi)統(tong)(tong)/支(zhi)座(Friction Pendilum System/Bearing,簡(jian)稱(cheng)FPS/FPB)。該裝(zhuang)(zhuang)置不(bu)僅具(ju)有平面滑移(yi)隔(ge)(ge)震裝(zhuang)(zhuang)置的對地震激勵頻率(lv)范(fan)圍(wei)的低敏(min)感性和(he)高穩定性，特有的圓(yuan)弧滑動(dong)(dong)面還使其具(ju)有復(fu)位(wei)功(gong)能，無需附設(she)阻(zu)尼(ni)向心機(ji)構，故(gu)而在(zai)實際應(ying)(ying)用(yong)中更為(wei)簡(jian)便，且增加了隔(ge)(ge)震裝(zhuang)(zhuang)置的可(ke)靠(kao)度。
摩(mo)(mo)擦(ca)擺(bai)隔震支(zhi)(zhi)(zhi)(zhi)座(zuo)是將傳統的(de)平(ping)面(mian)(mian)(mian)滑(hua)(hua)(hua)(hua)移(yi)(yi)隔震裝置的(de)摩(mo)(mo)擦(ca)滑(hua)(hua)(hua)(hua)移(yi)(yi)面(mian)(mian)(mian)由(you)平(ping)面(mian)(mian)(mian)改為球面(mian)(mian)(mian)，從(cong)而(er)可(ke)依靠自(zi)(zi)身(shen)重(zhong)力自(zi)(zi)動(dong)(dong)回復。該支(zhi)(zhi)(zhi)(zhi)座(zuo)主(zhu)要(yao)由(you)上、下支(zhi)(zhi)(zhi)(zhi)座(zuo)板和一個鉸接滑(hua)(hua)(hua)(hua)塊(kuai)組成。摩(mo)(mo)擦(ca)擺(bai)隔震支(zhi)(zhi)(zhi)(zhi)座(zuo)嵌在(zai)(zai)(zai)滑(hua)(hua)(hua)(hua)動(dong)(dong)容腔中的(de)鉸接滑(hua)(hua)(hua)(hua)塊(kuai)與(yu)滑(hua)(hua)(hua)(hua)動(dong)(dong)面(mian)(mian)(mian)具有相(xiang)同的(de)曲率(lv)半徑，可(ke)與(yu)滑(hua)(hua)(hua)(hua)動(dong)(dong)面(mian)(mian)(mian)完(wan)全貼合(he)，并使上支(zhi)(zhi)(zhi)(zhi)座(zuo)在(zai)(zai)(zai)支(zhi)(zhi)(zhi)(zhi)座(zuo)滑(hua)(hua)(hua)(hua)動(dong)(dong)時(shi)始(shi)終保(bao)持(chi)水平(ping)。滑(hua)(hua)(hua)(hua)動(dong)(dong)面(mian)(mian)(mian)上涂有低摩(mo)(mo)擦(ca)材料，如聚四氟乙(yi)烯(xi)（特氟龍）等，可(ke)在(zai)(zai)(zai)滑(hua)(hua)(hua)(hua)動(dong)(dong)過(guo)程(cheng)中耗(hao)散能量。當滑(hua)(hua)(hua)(hua)動(dong)(dong)界面(mian)(mian)(mian)受到的(de)地震作用超(chao)過(guo)靜(jing)摩(mo)(mo)擦(ca)力時(shi)，地面(mian)(mian)(mian)水平(ping)運(yun)動(dong)(dong)會促使滑(hua)(hua)(hua)(hua)動(dong)(dong)在(zai)(zai)(zai)其圓弧面(mian)(mian)(mian)內滑(hua)(hua)(hua)(hua)動(dong)(dong)，從(cong)而(er)迫使上部結構輕微抬(tai)高，發生單擺(bai)運(yun)動(dong)(dong)。然后，支(zhi)(zhi)(zhi)(zhi)座(zuo)會在(zai)(zai)(zai)自(zi)(zi)身(shen)受到的(de)豎向荷載作用下自(zi)(zi)動(dong)(dong)回復。
摩(mo)(mo)擦(ca)擺隔(ge)(ge)震(zhen)支(zhi)(zhi)座的(de)水平力為滑(hua)動面(mian)摩(mo)(mo)擦(ca)力和上部(bu)結(jie)(jie)(jie)構沿滑(hua)道上升產生的(de)恢(hui)復(fu)力的(de)合(he)力，而提供(gong)的(de)恢(hui)復(fu)力使(shi)支(zhi)(zhi)座能(neng)依靠其承受的(de)重(zhong)力自(zi)動往中心(xin)(xin)(xin)位(wei)置回復(fu)，使(shi)地震(zhen)響應得到控制(zhi)(zhi)，并且該(gai)支(zhi)(zhi)座的(de)剛度中心(xin)(xin)(xin)有自(zi)動與隔(ge)(ge)震(zhen)結(jie)(jie)(jie)構的(de)質(zhi)心(xin)(xin)(xin)重(zhong)合(he)的(de)趨勢(shi)，因而能(neng)在(zai)更大 程度上消(xiao)除結(jie)(jie)(jie)構的(de)扭轉(zhuan)運動。摩(mo)(mo)擦(ca)擺隔(ge)(ge)震(zhen)支(zhi)(zhi)座的(de)周期、豎向(xiang)承載力、阻尼比、側重(zhong)位(wei)移(yi)和抗拉力等指標可以進行單獨控制(zhi)(zhi)，該(gai)特性十分便于設計人員對隔(ge)(ge)震(zhen)系統進行優化設計。
