(一)、結構特點及功能
QZ系(xi)列球型支(zhi)(zhi)座是由上支(zhi)(zhi)座板(ban)(ban)(ban)(ban)(ban)、下支(zhi)(zhi)座板(ban)(ban)(ban)(ban)(ban)、凸形(xing)中(zhong)間板(ban)(ban)(ban)(ban)(ban)及兩(liang)塊不(bu)同(tong)形(xing)狀的(de)聚四(si)(si)氟乙烯板(ban)(ban)(ban)(ban)(ban)組(zu)成(cheng)。下支(zhi)(zhi)座板(ban)(ban)(ban)(ban)(ban)中(zhong)間為一(yi)(yi)凹形(xing)球面,同(tong)凸形(xing)中(zhong)間包相對應,兩(liang)者(zhe)之(zhi)間有一(yi)(yi)弧形(xing)四(si)(si)氟板(ban)(ban)(ban)(ban)(ban),通過求美棉與滑動來滿足梁端(duan)的(de)轉動;上座板(ban)(ban)(ban)(ban)(ban)上的(de)不(bu)銹(xiu)鋼(gang)板(ban)(ban)(ban)(ban)(ban)與中(zhong)間鋼(gang)板(ban)(ban)(ban)(ban)(ban)上的(de)另一(yi)(yi)四(si)(si)氟板(ban)(ban)(ban)(ban)(ban)組(zu)成(cheng)第二滑動面,完成(cheng)梁體因溫差諸多原(yuan)因所產生(sheng)的(de)伸(shen)縮(suo)位移。
QZ球型支(zhi)座(zuo)以(yi)傳力(li)可(ke)靠(kao),各向轉(zhuan)(zhuan)動性能一(yi)致 轉(zhuan)(zhuan)動靈(ling)活(huo)的(de)(de)特(te)點,不(bu)僅具(ju)備盆(pen)式橡膠(jiao)(jiao)支(zhi)座(zuo)承載能力(li)大,水平位移大等特(te)點,而且能更好地適(shi)應大轉(zhuan)(zhuan)角的(de)(de)需要,適(shi)用于寬橋(qiao)、曲線橋(qiao)。由(you)于承壓部件不(bu)使用橡膠(jiao)(jiao)件,不(bu)存在(zai)橡膠(jiao)(jiao)低溫脆性等影(ying)響,因此(ci)特(te)別適(shi)用于低溫地區(qu)。