橋梁板式橡膠支(zhi)座是由多層(ceng)薄鋼板與多層(ceng)橡膠片(pian)硫化粘合而成一種普通(tong)橡膠支(zhi)座產品,這種產品具有(you)足(zu)夠的(de)豎向剛度,能夠將支(zhi)座上(shang)部(bu)構造(zao)的(de)反力可靠的(de)傳遞給墩臺,支(zhi)座具有(you)良好的(de)彈性,以(yi)應(ying)對(dui)橋梁的(de)梁端的(de)轉(zhuan)動;又有(you)較大的(de)剪切變形(xing)能力,以(yi)滿(man)足(zu)上(shang)部(bu)構造(zao)的(de)水平位移(yi)。
橋(qiao)(qiao)梁(liang)板式橡膠支(zhi)座適用于公路(lu)橋(qiao)(qiao)梁(liang)、鐵路(lu)橋(qiao)(qiao)梁(liang)、城市立(li)交橋(qiao)(qiao)。主要功(gong)能(neng)是將上部(bu)的反力可靠(kao)地傳(chuan)遞給墩臺,并同(tong)時能(neng)完(wan)成(cheng)梁(liang)體(ti)結(jie)構由于制(zhi)動(dong)力溫度(du)、混凝士的收縮徐變及荷(he)載作用等引起的水平位移及梁(liang)端的轉(zhuan)動(dong)。
由多層高彈性(xing)的(de)(de)橡(xiang)膠為主(zhu)體材(cai)料,與薄鋼(gang)板鑲(xiang)嵌、粘合、硫化而成。該產品有(you)足(zu)夠的(de)(de)豎(shu)向剛度以承受(shou)垂直荷載,且能(neng)將上部構(gou)造的(de)(de)壓(ya)力(li)可靠地(di)傳遞給墩迨臺;有(you)良好的(de)(de)彈性(xing)以適(shi)應(ying)梁端的(de)(de)轉(zhuan)動;有(you)較(jiao)大的(de)(de)剪切變形以滿(man)足(zu)上部構(gou)造的(de)(de)水平(ping)位移。橡(xiang)膠以其獨(du)特的(de)(de)功能(neng)從根本上改(gai)善了橋梁支(zhi)座的(de)(de)性(xing)能(neng)。
橋梁橡膠支座的正確安裝步驟:
先使(shi)支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座和支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)承墊石按設(she)計要(yao)求(qiu)準(zhun)確就位。架(jia)梁(liang)(liang)(liang)(liang)(liang)(liang)落(luo)梁(liang)(liang)(liang)(liang)(liang)(liang)時,T型梁(liang)(liang)(liang)(liang)(liang)(liang)的縱軸線(xian)(xian)要(yao)與(yu)支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座中(zhong)(zhong)心(xin)(xin)線(xian)(xian)重(zhong)合;板(ban)梁(liang)(liang)(liang)(liang)(liang)(liang)、箱梁(liang)(liang)(liang)(liang)(liang)(liang)的縱軸線(xian)(xian)與(yu)支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座中(zhong)(zhong)心(xin)(xin)線(xian)(xian)相(xiang)平行(xing)。為(wei)(wei)落(luo)梁(liang)(liang)(liang)(liang)(liang)(liang)準(zhun)確,在(zai)架(jia)
跨(kua)(kua)板(ban)梁(liang)(liang)(liang)(liang)(liang)(liang)或(huo)(huo)(huo)箱梁(liang)(liang)(liang)(liang)(liang)(liang)時,可(ke)在(zai)梁(liang)(liang)(liang)(liang)(liang)(liang)底劃好二個支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座的十字(zi)位置(zhi)中(zhong)(zhong)心(xin)(xin),在(zai)梁(liang)(liang)(liang)(liang)(liang)(liang)的端立面上標出兩個支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座的位置(zhi)中(zhong)(zhong)心(xin)(xin)線(xian)(xian)的鉛直線(xian)(xian),落(luo)梁(liang)(liang)(liang)(liang)(liang)(liang)時使(shi)之(zhi)與(yu)墩臺(tai)上的位置(zhi)中(zhong)(zhong)心(xin)(xin)線(xian)(xian)相(xiang)重(zhong)合。以后(hou)數跨(kua)(kua)可(ke)依(yi)照
跨(kua)(kua)梁(liang)(liang)(liang)(liang)(liang)(liang)為(wei)(wei)基(ji)準(zhun)進行(xing)。在(zai)架(jia)梁(liang)(liang)(liang)(liang)(liang)(liang)落(luo)梁(liang)(liang)(liang)(liang)(liang)(liang)時要(yao)平穩,防止壓偏或(huo)(huo)(huo)產生初始剪切變形,大家可(ke)以參考(kao)鐵路橋梁(liang)(liang)(liang)(liang)(liang)(liang)板(ban)式橡膠支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座規格表(biao) 。在(zai)安裝T型橋梁(liang)(liang)(liang)(liang)(liang)(liang)時,若(ruo)橡膠支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座比梁(liang)(liang)(liang)(liang)(liang)(liang)筋(jin)底寬,則(ze)應在(zai)支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座與(yu)梁(liang)(liang)(liang)(liang)(liang)(liang)筋(jin)底之(zhi)間(jian)加設(she)比支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座大的鋼(gang)(gang)筋(jin)混(hun)凝土墊塊或(huo)(huo)(huo)厚(hou)鋼(gang)(gang)板(ban)做過(guo)渡層(ceng),以免支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)座局 部受(shou)壓,而形成應力集中(zhong)(zhong)。