摩(mo)擦(ca)滑(hua)(hua)(hua)(hua)移隔(ge)震(zhen)是開發(fa)應用(yong)較早的(de)(de)隔(ge)振技術之一(yi)，所用(yong)的(de)(de)摩(mo)擦(ca)材料多為(wei)(wei)沙石、石墨(mo)等(deng)廉價(jia)材料，標記經(jing)濟且簡(jian)(jian)單易行。摩(mo)擦(ca)滑(hua)(hua)(hua)(hua)移隔(ge)震(zhen)系統通常(chang)有(you)隔(ge)離地(di)震(zhen)作用(yong)的(de)(de)摩(mo)擦(ca)滑(hua)(hua)(hua)(hua)動(dong)(dong)機構(gou)和限位(wei)復(fu)位(wei)的(de)(de)阻尼向(xiang)心機構(gou)組成，多為(wei)(wei)平(ping)(ping)(ping)面(mian)滑(hua)(hua)(hua)(hua)移隔(ge)震(zhen)系統。該(gai)系統不能(neng)自動(dong)(dong)復(fu)位(wei)，一(yi)般需要(yao)另外加設(she)復(fu)位(wei)裝(zhuang)置(zhi)，且滑(hua)(hua)(hua)(hua)動(dong)(dong)性(xing)能(neng)離散性(xing)大、不易控制，滑(hua)(hua)(hua)(hua)移量過(guo)大可(ke)能(neng)導致(zhi)穿越隔(ge)震(zhen)層的(de)(de)非結構(gou)構(gou)件破壞(huai)，甚至可(ke)能(neng)發(fa)生滑(hua)(hua)(hua)(hua)移失(shi)穩(wen)，這極大地(di)阻礙了(le)滑(hua)(hua)(hua)(hua)移隔(ge)震(zhen)的(de)(de)發(fa)展。為(wei)(wei)了(le)解(jie)決平(ping)(ping)(ping)面(mian)滑(hua)(hua)(hua)(hua)移系統不能(neng)自動(dong)(dong)復(fu)位(wei)問題，Zayas等(deng)于1985年在(zai)美國加州(zhou)大學伯克(ke)利分校研發(fa)了(le)摩(mo)擦(ca)擺隔(ge)震(zhen)裝(zhuang)置(zhi)，稱之為(wei)(wei)摩(mo)擦(ca)擺系統/支座(Friction Pendilum System/Bearing,簡(jian)(jian)稱FPS/FPB)。該(gai)裝(zhuang)置(zhi)不僅具有(you)平(ping)(ping)(ping)面(mian)滑(hua)(hua)(hua)(hua)移隔(ge)震(zhen)裝(zhuang)置(zhi)的(de)(de)對地(di)震(zhen)激勵頻率范圍的(de)(de)低敏感(gan)性(xing)和高穩(wen)定性(xing)，特有(you)的(de)(de)圓(yuan)弧滑(hua)(hua)(hua)(hua)動(dong)(dong)面(mian)還使其具有(you)復(fu)位(wei)功能(neng)，無需附設(she)阻尼向(xiang)心機構(gou)，故而在(zai)實際應用(yong)中更(geng)為(wei)(wei)簡(jian)(jian)便，且增加了(le)隔(ge)震(zhen)裝(zhuang)置(zhi)的(de)(de)可(ke)靠(kao)度。
摩(mo)(mo)擦(ca)(ca)(ca)擺(bai)(bai)隔(ge)(ge)震(zhen)支(zhi)座是將傳統的(de)(de)平(ping)(ping)(ping)面(mian)(mian)(mian)滑(hua)(hua)(hua)(hua)移隔(ge)(ge)震(zhen)裝置的(de)(de)摩(mo)(mo)擦(ca)(ca)(ca)滑(hua)(hua)(hua)(hua)移面(mian)(mian)(mian)由(you)平(ping)(ping)(ping)面(mian)(mian)(mian)改(gai)為球面(mian)(mian)(mian)，從(cong)而可依(yi)靠自身重(zhong)力自動(dong)(dong)(dong)回復。該支(zhi)座主要由(you)上、下(xia)支(zhi)座板和一個鉸接滑(hua)(hua)(hua)(hua)塊組(zu)成(cheng)。摩(mo)(mo)擦(ca)(ca)(ca)擺(bai)(bai)隔(ge)(ge)震(zhen)支(zhi)座嵌在(zai)(zai)滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)容腔中(zhong)的(de)(de)鉸接滑(hua)(hua)(hua)(hua)塊與(yu)滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)面(mian)(mian)(mian)具有(you)相同的(de)(de)曲(qu)率半徑，可與(yu)滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)面(mian)(mian)(mian)完(wan)全貼(tie)合，并使上支(zhi)座在(zai)(zai)支(zhi)座滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)時(shi)始終(zhong)保持水平(ping)(ping)(ping)。滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)面(mian)(mian)(mian)上涂(tu)有(you)低摩(mo)(mo)擦(ca)(ca)(ca)材料，如聚四氟(fu)乙烯(xi)（特(te)氟(fu)龍）等，可在(zai)(zai)滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)過(guo)(guo)程(cheng)中(zhong)耗散能量。當滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)界面(mian)(mian)(mian)受到的(de)(de)地(di)震(zhen)作用超(chao)過(guo)(guo)靜摩(mo)(mo)擦(ca)(ca)(ca)力時(shi)，地(di)面(mian)(mian)(mian)水平(ping)(ping)(ping)運(yun)動(dong)(dong)(dong)會促(cu)使滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)在(zai)(zai)其圓弧面(mian)(mian)(mian)內滑(hua)(hua)(hua)(hua)動(dong)(dong)(dong)，從(cong)而迫使上部(bu)結構(gou)輕微抬高，發生單擺(bai)(bai)運(yun)動(dong)(dong)(dong)。然后，支(zhi)座會在(zai)(zai)自身受到的(de)(de)豎向荷(he)載(zai)作用下(xia)自動(dong)(dong)(dong)回復。
摩(mo)擦擺隔(ge)(ge)震(zhen)支(zhi)座(zuo)(zuo)(zuo)的水平(ping)力(li)為滑(hua)動(dong)(dong)面摩(mo)擦力(li)和上(shang)部結構沿滑(hua)道(dao)上(shang)升產生的恢復(fu)力(li)的合力(li)，而提供(gong)的恢復(fu)力(li)使(shi)支(zhi)座(zuo)(zuo)(zuo)能依靠其承受的重(zhong)(zhong)力(li)自動(dong)(dong)往中心(xin)位置回復(fu)，使(shi)地震(zhen)響應得到控制，并(bing)且該支(zhi)座(zuo)(zuo)(zuo)的剛度中心(xin)有自動(dong)(dong)與隔(ge)(ge)震(zhen)結構的質(zhi)心(xin)重(zhong)(zhong)合的趨勢，因而能在更大 程度上(shang)消(xiao)除結構的扭轉運動(dong)(dong)。摩(mo)擦擺隔(ge)(ge)震(zhen)支(zhi)座(zuo)(zuo)(zuo)的周期、豎(shu)向承載力(li)、阻(zu)尼比、側重(zhong)(zhong)位移(yi)和抗拉力(li)等指標可(ke)以(yi)進行單獨控制，該特性十分便(bian)于設(she)計人(ren)員(yuan)對隔(ge)(ge)震(zhen)系統(tong)進行優化設(she)計。
