摩擦(ca)(ca)(ca)滑(hua)(hua)(hua)移(yi)(yi)隔(ge)(ge)震(zhen)(zhen)是開發應用(yong)(yong)較早的(de)(de)(de)(de)隔(ge)(ge)振技術之一，所用(yong)(yong)的(de)(de)(de)(de)摩擦(ca)(ca)(ca)材(cai)料多為(wei)(wei)沙石、石墨等(deng)廉(lian)價材(cai)料，標記經濟(ji)且(qie)簡單易行。摩擦(ca)(ca)(ca)滑(hua)(hua)(hua)移(yi)(yi)隔(ge)(ge)震(zhen)(zhen)系統通(tong)常有(you)(you)隔(ge)(ge)離(li)(li)地(di)(di)(di)震(zhen)(zhen)作用(yong)(yong)的(de)(de)(de)(de)摩擦(ca)(ca)(ca)滑(hua)(hua)(hua)動(dong)(dong)機(ji)構(gou)和限(xian)位(wei)(wei)復(fu)位(wei)(wei)的(de)(de)(de)(de)阻(zu)尼(ni)向心(xin)機(ji)構(gou)組成，多為(wei)(wei)平(ping)面(mian)(mian)滑(hua)(hua)(hua)移(yi)(yi)隔(ge)(ge)震(zhen)(zhen)系統。該系統不能(neng)自(zi)動(dong)(dong)復(fu)位(wei)(wei)，一般需要另外加(jia)設復(fu)位(wei)(wei)裝(zhuang)(zhuang)置(zhi)，且(qie)滑(hua)(hua)(hua)動(dong)(dong)性能(neng)離(li)(li)散性大(da)(da)、不易控制，滑(hua)(hua)(hua)移(yi)(yi)量過大(da)(da)可(ke)(ke)(ke)能(neng)導致穿越隔(ge)(ge)震(zhen)(zhen)層(ceng)的(de)(de)(de)(de)非結構(gou)構(gou)件(jian)破(po)壞，甚至可(ke)(ke)(ke)能(neng)發生滑(hua)(hua)(hua)移(yi)(yi)失穩(wen)，這極大(da)(da)地(di)(di)(di)阻(zu)礙了(le)滑(hua)(hua)(hua)移(yi)(yi)隔(ge)(ge)震(zhen)(zhen)的(de)(de)(de)(de)發展。為(wei)(wei)了(le)解決平(ping)面(mian)(mian)滑(hua)(hua)(hua)移(yi)(yi)系統不能(neng)自(zi)動(dong)(dong)復(fu)位(wei)(wei)問題，Zayas等(deng)于1985年在(zai)美(mei)國(guo)加(jia)州大(da)(da)學伯克利分校研發了(le)摩擦(ca)(ca)(ca)擺(bai)隔(ge)(ge)震(zhen)(zhen)裝(zhuang)(zhuang)置(zhi)，稱之為(wei)(wei)摩擦(ca)(ca)(ca)擺(bai)系統/支座(Friction Pendilum System/Bearing,簡稱FPS/FPB)。該裝(zhuang)(zhuang)置(zhi)不僅具有(you)(you)平(ping)面(mian)(mian)滑(hua)(hua)(hua)移(yi)(yi)隔(ge)(ge)震(zhen)(zhen)裝(zhuang)(zhuang)置(zhi)的(de)(de)(de)(de)對地(di)(di)(di)震(zhen)(zhen)激勵頻率范圍的(de)(de)(de)(de)低(di)敏(min)感(gan)性和高穩(wen)定(ding)性，特(te)有(you)(you)的(de)(de)(de)(de)圓弧(hu)滑(hua)(hua)(hua)動(dong)(dong)面(mian)(mian)還使其(qi)具有(you)(you)復(fu)位(wei)(wei)功能(neng)，無需附(fu)設阻(zu)尼(ni)向心(xin)機(ji)構(gou)，故而在(zai)實際應用(yong)(yong)中(zhong)更為(wei)(wei)簡便，且(qie)增加(jia)了(le)隔(ge)(ge)震(zhen)(zhen)裝(zhuang)(zhuang)置(zhi)的(de)(de)(de)(de)可(ke)(ke)(ke)靠(kao)度。
摩擦(ca)(ca)擺隔震支(zhi)(zhi)(zhi)座(zuo)是將傳統的(de)平(ping)面(mian)(mian)(mian)滑(hua)(hua)(hua)(hua)(hua)(hua)移(yi)隔震裝置的(de)摩擦(ca)(ca)滑(hua)(hua)(hua)(hua)(hua)(hua)移(yi)面(mian)(mian)(mian)由平(ping)面(mian)(mian)(mian)改(gai)為(wei)球面(mian)(mian)(mian)，從而(er)可(ke)(ke)依靠(kao)自(zi)身(shen)重力自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)回復。該支(zhi)(zhi)(zhi)座(zuo)主要由上(shang)、下支(zhi)(zhi)(zhi)座(zuo)板和一個鉸(jiao)接(jie)滑(hua)(hua)(hua)(hua)(hua)(hua)塊(kuai)組成。摩擦(ca)(ca)擺隔震支(zhi)(zhi)(zhi)座(zuo)嵌在(zai)滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)容腔中(zhong)的(de)鉸(jiao)接(jie)滑(hua)(hua)(hua)(hua)(hua)(hua)塊(kuai)與(yu)滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)面(mian)(mian)(mian)具有(you)相同的(de)曲率半(ban)徑，可(ke)(ke)與(yu)滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)面(mian)(mian)(mian)完全貼合，并使上(shang)支(zhi)(zhi)(zhi)座(zuo)在(zai)支(zhi)(zhi)(zhi)座(zuo)滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)時(shi)始終保持水(shui)平(ping)。滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)面(mian)(mian)(mian)上(shang)涂有(you)低摩擦(ca)(ca)材(cai)料(liao)，如聚四氟(fu)乙烯（特氟(fu)龍(long)）等，可(ke)(ke)在(zai)滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)過(guo)程中(zhong)耗散能量。當滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)界(jie)面(mian)(mian)(mian)受(shou)到的(de)地(di)震作用超過(guo)靜摩擦(ca)(ca)力時(shi)，地(di)面(mian)(mian)(mian)水(shui)平(ping)運動(dong)(dong)(dong)(dong)(dong)(dong)會(hui)促(cu)使滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)在(zai)其(qi)圓弧面(mian)(mian)(mian)內滑(hua)(hua)(hua)(hua)(hua)(hua)動(dong)(dong)(dong)(dong)(dong)(dong)，從而(er)迫使上(shang)部結構輕微抬高(gao)，發生單擺運動(dong)(dong)(dong)(dong)(dong)(dong)。然后，支(zhi)(zhi)(zhi)座(zuo)會(hui)在(zai)自(zi)身(shen)受(shou)到的(de)豎向荷(he)載作用下自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)回復。
摩(mo)擦(ca)(ca)擺(bai)隔(ge)震(zhen)支座(zuo)(zuo)的水平(ping)力為滑動(dong)面摩(mo)擦(ca)(ca)力和(he)上(shang)(shang)部結(jie)(jie)(jie)構(gou)沿(yan)滑道上(shang)(shang)升產生的恢(hui)復力的合力，而提(ti)供的恢(hui)復力使(shi)支座(zuo)(zuo)能(neng)依靠(kao)其承(cheng)受的重(zhong)(zhong)力自(zi)動(dong)往中心(xin)位(wei)置(zhi)回復，使(shi)地震(zhen)響應(ying)得到控(kong)制，并且該支座(zuo)(zuo)的剛度(du)中心(xin)有自(zi)動(dong)與隔(ge)震(zhen)結(jie)(jie)(jie)構(gou)的質心(xin)重(zhong)(zhong)合的趨勢，因而能(neng)在更(geng)大 程度(du)上(shang)(shang)消除結(jie)(jie)(jie)構(gou)的扭轉運動(dong)。摩(mo)擦(ca)(ca)擺(bai)隔(ge)震(zhen)支座(zuo)(zuo)的周期(qi)、豎向承(cheng)載(zai)力、阻尼比、側重(zhong)(zhong)位(wei)移和(he)抗拉(la)力等指標(biao)可以進行(xing)(xing)單獨控(kong)制，該特(te)性十(shi)分便于設計人員對隔(ge)震(zhen)系統進行(xing)(xing)優化設計。
