發布時(shi)間(jian):2022-09-15 16:34:40 人氣: 來源:萬(wan)千緊固件
近年來,我(wo)國(guo)輕鋼(gang)(gang)(gang)結構(gou)建筑在工(gong)業廠房、倉庫建筑以(yi)(yi)及(ji)低、多層住(zhu)宅建筑中(zhong)得到飛(fei)速(su)發(fa)展(zhan)(zhan)(zhan),尤其(qi)是輕鋼(gang)(gang)(gang)龍骨(gu)體系在住(zhu)宅結構(gou)中(zhong)得以(yi)(yi)應(ying)用以(yi)(yi)及(ji)彩色型(xing)鋼(gang)(gang)(gang)板(ban)維護體系的(de)(de)(de)大量采用,自(zi)攻(gong)(gong)螺(luo)(luo)釘以(yi)(yi)其(qi)施(shi)工(gong)便利(li)、連(lian)(lian)接剛度(du)好、承(cheng)(cheng)載(zai)能力高且外形美觀逐漸替(ti)代了拉(la)鉚(liu)釘,成為(wei)(wei)這(zhe)些超(chao)薄(bo)(bo)(bo)壁(bi)(bi)冷(leng)彎(wan)型(xing)鋼(gang)(gang)(gang)構(gou)件(jian)(jian)最主要的(de)(de)(de)連(lian)(lian)接方(fang)式(shi)。隨著薄(bo)(bo)(bo)壁(bi)(bi)型(xing)鋼(gang)(gang)(gang)結構(gou)在世界各地快速(su)的(de)(de)(de)發(fa)展(zhan)(zhan)(zhan),自(zi)攻(gong)(gong)螺(luo)(luo)釘的(de)(de)(de)連(lian)(lian)接性能研(yan)究(jiu)日益受(shou)到重現,國(guo)內外對于以(yi)(yi)自(zi)攻(gong)(gong)螺(luo)(luo)釘連(lian)(lian)接的(de)(de)(de)梁柱墻板(ban)等構(gou)件(jian)(jian)的(de)(de)(de)試驗研(yan)究(jiu)也越來越多。目(mu)前(qian),冷(leng)彎(wan)薄(bo)(bo)(bo)壁(bi)(bi)型(xing)鋼(gang)(gang)(gang)結構(gou)件(jian)(jian)不斷(duan)向超(chao)薄(bo)(bo)(bo)、高強方(fang)向發(fa)展(zhan)(zhan)(zhan),出(chu)現了我(wo)國(guo)現行《冷(leng)彎(wan)薄(bo)(bo)(bo)壁(bi)(bi)型(xing)鋼(gang)(gang)(gang)結構(gou)技(ji)術規(gui)范(fan)》還沒有涉及(ji)的(de)(de)(de)自(zi)攻(gong)(gong)螺(luo)(luo)釘被剪斷(duan)這(zhe)一(yi)破(po)壞模式(shi),相應(ying)的(de)(de)(de)承(cheng)(cheng)載(zai)力計(ji)算(suan)涉及(ji)到自(zi)攻(gong)(gong)螺(luo)(luo)釘本身(shen)的(de)(de)(de)抗剪強度(du)以(yi)(yi)及(ji)連(lian)(lian)接板(ban)件(jian)(jian)的(de)(de)(de)“剪刀效應(ying)”,需要開展(zhan)(zhan)(zhan)進一(yi)步的(de)(de)(de)研(yan)究(jiu)。本文將(jiang)針對自(zi)攻(gong)(gong)螺(luo)(luo)釘連(lian)(lian)接承(cheng)(cheng)載(zai)力計(ji)算(suan)方(fang)法及(ji)研(yan)究(jiu)進展(zhan)(zhan)(zhan)進行總結和回顧,為(wei)(wei)其(qi)進一(yi)步研(yan)究(jiu)提(ti)供(gong)參考。
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