鋼筋直螺紋套筒的技術特點
1、連接強度高,連接質量穩定可靠
接(jie)頭(tou)強度達到行(xing)業標(biao)準(zhun)JGJ107-2010《鋼筋(jin)(jin)機(ji)械(xie)連(lian)接(jie)通(tong)用技術規程(cheng)》中Ⅰ級接(jie)頭(tou)性(xing)能的(de)(de)要求。接(jie)頭(tou)抗(kang)拉(la)強度不(bu)小(xiao)于(yu)被連(lian)接(jie)鋼筋(jin)(jin)實際抗(kang)拉(la)強度或鋼筋(jin)(jin)抗(kang)拉(la)強度標(biao)準(zhun)的(de)(de)1.10倍。抗(kang)疲勞(lao)性(xing)能好(hao)。接(jie)頭(tou)通(tong)過行(xing)業標(biao)準(zhun)規定(ding)的(de)(de)二百萬(wan)次疲勞(lao)強度試驗。節省材料。以直徑40mm鋼筋(jin)(jin)連(lian)接(jie)套(tao)筒(tong)為(wei)例,擠(ji)壓套(tao)筒(tong)質量4kg,直螺紋(wen)套(tao)筒(tong)1.1 kg。直螺紋(wen)套(tao)筒(tong)質量是擠(ji)壓套(tao)筒(tong)的(de)(de)25%,而(er)接(jie)頭(tou)性(xing)能卻能與擠(ji)壓接(jie)頭(tou)媲美。
2、施工方便、連接速度快
鋼(gang)筋(jin)絲頭(tou)加工(gong)(gong)(gong)工(gong)(gong)(gong)廠化(hua)作(zuo)業,不占用施工(gong)(gong)(gong)工(gong)(gong)(gong)期(qi)。現場連接(jie)裝配作(zuo)業,占用時間短。鋼(gang)筋(jin)絲頭(tou)加工(gong)(gong)(gong)簡(jian)單。鋼(gang)筋(jin)一(yi)次裝卡即可(ke)完(wan)成(cheng)剝肋、滾壓螺(luo)紋兩道工(gong)(gong)(gong)序,加工(gong)(gong)(gong)速度快(kuai),成(cheng)型螺(luo)紋精度高。適(shi)用范(fan)圍(wei)廣。對鋼(gang)筋(jin)無可(ke)焊性要(yao)求,適(shi)用于直徑14~50mmHRB335、HRB400鋼(gang)筋(jin)在任意方位的(de)同、異徑連接(jie)。
3、環保施工
鋼筋(jin)絲(si)頭加工(gong)及接頭現(xian)場施工(gong)無(wu)噪音污染、無(wu)明火、無(wu)煙(yan)塵(chen),安全可靠。節約能(neng)源。設(she)(she)備(bei)功率僅為(wei)3~4kw,不需(xu)專用(yong)配電(dian)設(she)(she)施,不需(xu)架設(she)(she)專用(yong)電(dian)線。抗低溫性(xing)能(neng)好(hao)。通(tong)過-400C低溫試(shi)驗(yan)。全天候(hou)施工(gong)。不受風、雨、雪等氣候(hou)條件的影響(xiang)。
鋼筋直螺紋套筒連接規范
1、連接鋼筋(jin)時,鋼筋(jin)規格(ge)和(he)套(tao)筒的(de)規格(ge)必(bi)須一致,鋼筋(jin)和(he)套(tao)筒的(de)絲扣(kou)應干凈、完(wan)好無損。
2、采(cai)用預(yu)埋接頭(tou)時,連(lian)(lian)接套(tao)筒(tong)的(de)(de)位置、規格和數量應符(fu)合設計要求。帶連(lian)(lian)接套(tao)筒(tong)的(de)(de)鋼(gang)筋應固定牢(lao),連(lian)(lian)接套(tao)筒(tong)的(de)(de)外露端應有保護(hu)蓋。
3、滾壓直螺紋接(jie)頭(tou)應使用管鉗和力(li)矩(ju)(ju)扳手進行施工,將兩個鋼筋絲(si)頭(tou)在套筒中(zhong)間位置相互頂緊,接(jie)頭(tou)擰緊力(li)矩(ju)(ju)應符合表4的規定。力(li)矩(ju)(ju)扳手的精度(du)為±5%。