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(da)到(dao)行業(ye)標(biao)準JGJ107-2010《鋼(gang)筋(jin)機(ji)械(xie)連接(jie)通(tong)用技術規(gui)程》中Ⅰ級接(jie)頭(tou)性(xing)能的(de)要求。接(jie)頭(tou)抗(kang)拉強度不小于(yu)被連接(jie)鋼(gang)筋(jin)實際抗(kang)拉強度或鋼(gang)筋(jin)抗(kang)拉強度標(biao)準的(de)1.10倍。抗(kang)疲勞(lao)性(xing)能好。接(jie)頭(tou)通(tong)過行業(ye)標(biao)準規(gui)定的(de)二百萬次疲勞(lao)強度試驗。節省(sheng)材料。以直(zhi)徑40mm鋼(gang)筋(jin)連接(jie)套(tao)(tao)筒(tong)(tong)為(wei)例,擠(ji)壓(ya)套(tao)(tao)筒(tong)(tong)質量4kg,直(zhi)螺紋套(tao)(tao)筒(tong)(tong)1.1 kg。直(zhi)螺紋套(tao)(tao)筒(tong)(tong)質量是(shi)擠(ji)壓(ya)套(tao)(tao)筒(tong)(tong)的(de)25%,而接(jie)頭(tou)性(xing)能卻能與擠(ji)壓(ya)接(jie)頭(tou)媲美。
2、施工方便、連接速度快
鋼(gang)筋(jin)絲頭加工(gong)(gong)工(gong)(gong)廠化作業(ye),不占用施工(gong)(gong)工(gong)(gong)期。現(xian)場連(lian)接裝配(pei)作業(ye),占用時間短。鋼(gang)筋(jin)絲頭加工(gong)(gong)簡單。鋼(gang)筋(jin)一次裝卡即可完(wan)成剝(bo)肋、滾壓螺紋(wen)兩道工(gong)(gong)序,加工(gong)(gong)速度快,成型螺紋(wen)精度高。適用范圍廣。對鋼(gang)筋(jin)無可焊(han)性要(yao)求(qiu),適用于(yu)直徑14~50mmHRB335、HRB400鋼(gang)筋(jin)在任意方位(wei)的(de)同、異徑連(lian)接。
3、環保施工
鋼筋絲頭(tou)加(jia)工(gong)(gong)及接頭(tou)現場施工(gong)(gong)無噪(zao)音污染、無明火、無煙塵(chen),安全(quan)可靠(kao)。節約能源(yuan)。設(she)備(bei)功(gong)率僅為(wei)3~4kw,不需(xu)專(zhuan)用配(pei)電(dian)設(she)施,不需(xu)架設(she)專(zhuan)用電(dian)線。抗低溫性能好。通過-400C低溫試驗。全(quan)天候施工(gong)(gong)。不受風、雨、雪等氣候條件的影響。
鋼筋直螺紋套筒連接規范
1、連接鋼(gang)筋(jin)時,鋼(gang)筋(jin)規格和套筒(tong)的規格必(bi)須一致(zhi),鋼(gang)筋(jin)和套筒(tong)的絲扣應干凈、完好無損。
2、采用預埋接(jie)頭時,連(lian)接(jie)套(tao)筒(tong)的(de)(de)位置、規(gui)格和數量應符合設計(ji)要(yao)求。帶連(lian)接(jie)套(tao)筒(tong)的(de)(de)鋼(gang)筋(jin)應固定牢(lao),連(lian)接(jie)套(tao)筒(tong)的(de)(de)外露端應有保護蓋。
3、滾壓直螺紋接(jie)(jie)頭(tou)應使用管鉗和力矩(ju)扳(ban)手進行施工,將兩個鋼筋絲頭(tou)在套筒(tong)中間位置相(xiang)互頂緊,接(jie)(jie)頭(tou)擰緊力矩(ju)應符合表(biao)4的規(gui)定。力矩(ju)扳(ban)手的精度為±5%。