橋(qiao)梁(liang)板式橡膠(jiao)(jiao)支(zhi)座是由多(duo)層薄鋼板與(yu)多(duo)層橡膠(jiao)(jiao)片硫化粘(zhan)合而(er)成一(yi)種普通(tong)橡膠(jiao)(jiao)支(zhi)座產品(pin),這種產品(pin)具有(you)足夠的豎向(xiang)剛度(du),能夠將支(zhi)座上部構造(zao)的反力可靠(kao)的傳遞給墩臺,支(zhi)座具有(you)良好的彈性,以應對橋(qiao)梁(liang)的梁(liang)端的轉動；又(you)有(you)較大的剪切(qie)變形能力，以滿足上部構造(zao)的水平位(wei)移。
橋梁(liang)板式(shi)橡膠支座適用于(yu)公路橋梁(liang)、鐵路橋梁(liang)、城市(shi)立(li)交橋。主(zhu)要(yao)功(gong)能是將上部的(de)反力(li)可靠地傳遞給墩(dun)臺，并(bing)同時能完(wan)成(cheng)梁(liang)體結構由(you)于(yu)制動(dong)力(li)溫(wen)度、混(hun)凝士(shi)的(de)收縮(suo)徐變(bian)及(ji)荷載作用等引起(qi)的(de)水平位移及(ji)梁(liang)端的(de)轉動(dong)。
由多層高彈性的(de)(de)(de)橡膠為主體材料，與薄鋼板鑲(xiang)嵌、粘合、硫(liu)化而成。該產品有足(zu)夠的(de)(de)(de)豎向(xiang)剛度以(yi)承受垂直荷載(zai)，且能將上部構(gou)造的(de)(de)(de)壓(ya)力可靠地傳(chuan)遞給墩迨臺；有良(liang)好的(de)(de)(de)彈性以(yi)適應梁端(duan)的(de)(de)(de)轉動；有較大的(de)(de)(de)剪切變形以(yi)滿足(zu)上部構(gou)造的(de)(de)(de)水平位(wei)移。橡膠以(yi)其獨(du)特(te)的(de)(de)(de)功(gong)能從(cong)根本上改善了(le)橋梁支座的(de)(de)(de)性能。
橋梁橡膠支座的正確安裝步驟：
先使支(zhi)(zhi)(zhi)(zhi)座和支(zhi)(zhi)(zhi)(zhi)承墊石(shi)按設(she)計要求準(zhun)(zhun)確就位。架梁(liang)(liang)(liang)(liang)(liang)落梁(liang)(liang)(liang)(liang)(liang)時(shi)，T型梁(liang)(liang)(liang)(liang)(liang)的縱軸線(xian)(xian)(xian)要與(yu)(yu)支(zhi)(zhi)(zhi)(zhi)座中(zhong)(zhong)(zhong)心(xin)線(xian)(xian)(xian)重(zhong)合；板(ban)梁(liang)(liang)(liang)(liang)(liang)、箱(xiang)梁(liang)(liang)(liang)(liang)(liang)的縱軸線(xian)(xian)(xian)與(yu)(yu)支(zhi)(zhi)(zhi)(zhi)座中(zhong)(zhong)(zhong)心(xin)線(xian)(xian)(xian)相平(ping)(ping)行(xing)。為落梁(liang)(liang)(liang)(liang)(liang)準(zhun)(zhun)確，在(zai)架
跨板(ban)梁(liang)(liang)(liang)(liang)(liang)或箱(xiang)梁(liang)(liang)(liang)(liang)(liang)時(shi)，可(ke)在(zai)梁(liang)(liang)(liang)(liang)(liang)底(di)(di)劃好二(er)個(ge)支(zhi)(zhi)(zhi)(zhi)座的十字位置(zhi)(zhi)中(zhong)(zhong)(zhong)心(xin)，在(zai)梁(liang)(liang)(liang)(liang)(liang)的端(duan)立面(mian)上(shang)標(biao)出(chu)兩個(ge)支(zhi)(zhi)(zhi)(zhi)座的位置(zhi)(zhi)中(zhong)(zhong)(zhong)心(xin)線(xian)(xian)(xian)的鉛(qian)直線(xian)(xian)(xian)，落梁(liang)(liang)(liang)(liang)(liang)時(shi)使之(zhi)(zhi)與(yu)(yu)墩臺上(shang)的位置(zhi)(zhi)中(zhong)(zhong)(zhong)心(xin)線(xian)(xian)(xian)相重(zhong)合。以后數(shu)跨可(ke)依照
跨梁(liang)(liang)(liang)(liang)(liang)為基準(zhun)(zhun)進(jin)行(xing)。在(zai)架梁(liang)(liang)(liang)(liang)(liang)落梁(liang)(liang)(liang)(liang)(liang)時(shi)要平(ping)(ping)穩，防(fang)止壓偏或產生(sheng)初始剪切變形,大家可(ke)以參考(kao)鐵路橋梁(liang)(liang)(liang)(liang)(liang)板(ban)式橡膠支(zhi)(zhi)(zhi)(zhi)座規(gui)格表 。在(zai)安裝T型橋梁(liang)(liang)(liang)(liang)(liang)時(shi)，若橡膠支(zhi)(zhi)(zhi)(zhi)座比梁(liang)(liang)(liang)(liang)(liang)筋(jin)底(di)(di)寬，則應在(zai)支(zhi)(zhi)(zhi)(zhi)座與(yu)(yu)梁(liang)(liang)(liang)(liang)(liang)筋(jin)底(di)(di)之(zhi)(zhi)間加設(she)比支(zhi)(zhi)(zhi)(zhi)座大的鋼(gang)筋(jin)混凝土墊塊(kuai)或厚鋼(gang)板(ban)做過(guo)渡(du)層，以免支(zhi)(zhi)(zhi)(zhi)座局(ju) 部受壓，而形成(cheng)應力(li)集中(zhong)(zhong)(zhong)。
