摩擦(ca)滑(hua)移(yi)隔(ge)(ge)震(zhen)是開(kai)發(fa)應用(yong)(yong)較早的(de)(de)(de)(de)(de)隔(ge)(ge)振技術之一(yi)，所用(yong)(yong)的(de)(de)(de)(de)(de)摩擦(ca)材料(liao)多(duo)(duo)為沙石、石墨等廉價材料(liao)，標記(ji)經濟(ji)且(qie)簡單易行。摩擦(ca)滑(hua)移(yi)隔(ge)(ge)震(zhen)系(xi)統通常(chang)有(you)隔(ge)(ge)離地(di)(di)震(zhen)作用(yong)(yong)的(de)(de)(de)(de)(de)摩擦(ca)滑(hua)動(dong)(dong)機(ji)構(gou)(gou)和(he)限位(wei)復(fu)(fu)(fu)位(wei)的(de)(de)(de)(de)(de)阻尼向心機(ji)構(gou)(gou)組(zu)成，多(duo)(duo)為平面滑(hua)移(yi)隔(ge)(ge)震(zhen)系(xi)統。該(gai)系(xi)統不(bu)能(neng)自(zi)動(dong)(dong)復(fu)(fu)(fu)位(wei)，一(yi)般需(xu)要(yao)另外加設復(fu)(fu)(fu)位(wei)裝置(zhi)(zhi)，且(qie)滑(hua)動(dong)(dong)性(xing)能(neng)離散性(xing)大(da)、不(bu)易控制，滑(hua)移(yi)量過(guo)大(da)可(ke)(ke)能(neng)導致穿越隔(ge)(ge)震(zhen)層的(de)(de)(de)(de)(de)非(fei)結(jie)構(gou)(gou)構(gou)(gou)件破壞，甚至可(ke)(ke)能(neng)發(fa)生(sheng)滑(hua)移(yi)失(shi)穩，這(zhe)極(ji)大(da)地(di)(di)阻礙了(le)滑(hua)移(yi)隔(ge)(ge)震(zhen)的(de)(de)(de)(de)(de)發(fa)展。為了(le)解決平面滑(hua)移(yi)系(xi)統不(bu)能(neng)自(zi)動(dong)(dong)復(fu)(fu)(fu)位(wei)問(wen)題，Zayas等于(yu)1985年在美國加州大(da)學(xue)伯(bo)克利分校研發(fa)了(le)摩擦(ca)擺隔(ge)(ge)震(zhen)裝置(zhi)(zhi)，稱(cheng)之為摩擦(ca)擺系(xi)統/支(zhi)座(Friction Pendilum System/Bearing,簡稱(cheng)FPS/FPB)。該(gai)裝置(zhi)(zhi)不(bu)僅具有(you)平面滑(hua)移(yi)隔(ge)(ge)震(zhen)裝置(zhi)(zhi)的(de)(de)(de)(de)(de)對地(di)(di)震(zhen)激勵頻率范圍的(de)(de)(de)(de)(de)低敏感性(xing)和(he)高穩定性(xing)，特有(you)的(de)(de)(de)(de)(de)圓弧滑(hua)動(dong)(dong)面還使其具有(you)復(fu)(fu)(fu)位(wei)功能(neng)，無需(xu)附設阻尼向心機(ji)構(gou)(gou)，故而在實際應用(yong)(yong)中更(geng)為簡便(bian)，且(qie)增(zeng)加了(le)隔(ge)(ge)震(zhen)裝置(zhi)(zhi)的(de)(de)(de)(de)(de)可(ke)(ke)靠度。
摩(mo)擦(ca)(ca)擺隔(ge)(ge)震支(zhi)(zhi)座(zuo)是將傳統的平面(mian)(mian)(mian)(mian)(mian)滑(hua)(hua)(hua)(hua)(hua)移隔(ge)(ge)震裝置(zhi)的摩(mo)擦(ca)(ca)滑(hua)(hua)(hua)(hua)(hua)移面(mian)(mian)(mian)(mian)(mian)由平面(mian)(mian)(mian)(mian)(mian)改為球面(mian)(mian)(mian)(mian)(mian)，從(cong)而可(ke)依靠自身重力自動(dong)(dong)(dong)回(hui)復。該支(zhi)(zhi)座(zuo)主要由上(shang)(shang)(shang)、下支(zhi)(zhi)座(zuo)板和一個(ge)鉸接滑(hua)(hua)(hua)(hua)(hua)塊組成。摩(mo)擦(ca)(ca)擺隔(ge)(ge)震支(zhi)(zhi)座(zuo)嵌在(zai)滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)容(rong)腔中(zhong)的鉸接滑(hua)(hua)(hua)(hua)(hua)塊與滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)面(mian)(mian)(mian)(mian)(mian)具有相同的曲率半徑，可(ke)與滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)面(mian)(mian)(mian)(mian)(mian)完全(quan)貼合，并(bing)使上(shang)(shang)(shang)支(zhi)(zhi)座(zuo)在(zai)支(zhi)(zhi)座(zuo)滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)時(shi)始終保持水平。滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)面(mian)(mian)(mian)(mian)(mian)上(shang)(shang)(shang)涂(tu)有低摩(mo)擦(ca)(ca)材(cai)料(liao)，如聚四氟(fu)乙烯（特氟(fu)龍）等(deng)，可(ke)在(zai)滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)過程中(zhong)耗散能量。當滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)界面(mian)(mian)(mian)(mian)(mian)受到的地震作(zuo)(zuo)用超(chao)過靜摩(mo)擦(ca)(ca)力時(shi)，地面(mian)(mian)(mian)(mian)(mian)水平運動(dong)(dong)(dong)會促使滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)在(zai)其圓弧面(mian)(mian)(mian)(mian)(mian)內滑(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)，從(cong)而迫使上(shang)(shang)(shang)部結構輕微抬高，發(fa)生單擺運動(dong)(dong)(dong)。然后，支(zhi)(zhi)座(zuo)會在(zai)自身受到的豎(shu)向荷載作(zuo)(zuo)用下自動(dong)(dong)(dong)回(hui)復。
摩(mo)(mo)擦擺隔(ge)震(zhen)支(zhi)(zhi)座(zuo)的(de)水平力(li)為滑動面摩(mo)(mo)擦力(li)和(he)上部結構沿滑道(dao)上升產生的(de)恢(hui)復力(li)的(de)合(he)力(li)，而提(ti)供(gong)的(de)恢(hui)復力(li)使(shi)支(zhi)(zhi)座(zuo)能依靠(kao)其承受的(de)重力(li)自(zi)動往中心(xin)(xin)位置回復，使(shi)地震(zhen)響應得到控制，并且(qie)該支(zhi)(zhi)座(zuo)的(de)剛度(du)中心(xin)(xin)有(you)自(zi)動與(yu)隔(ge)震(zhen)結構的(de)質心(xin)(xin)重合(he)的(de)趨勢(shi)，因而能在更大 程度(du)上消(xiao)除結構的(de)扭轉運動。摩(mo)(mo)擦擺隔(ge)震(zhen)支(zhi)(zhi)座(zuo)的(de)周期(qi)、豎向(xiang)承載力(li)、阻尼(ni)比、側重位移(yi)和(he)抗拉力(li)等指標可以進行(xing)單獨(du)控制，該特性十(shi)分便(bian)于設計(ji)人員對(dui)隔(ge)震(zhen)系統(tong)進行(xing)優化設計(ji)。
