Steel tubes for precision applications - technical delivery conditions - part 5 : welded and cold sized square and rectangular tubes 精密用途鋼管.交貨技術(shù)條件.第5部分:焊接冷定徑方形和矩形鋼管
Steel tubes for precision applications - technical delivery conditions - part 5 : welded and cold size square and rectangular tubes ; german version en 10305 - 5 : 2003 精密儀器用鋼管.交貨技術(shù)條件.第5部分:焊接冷精加工
Cold - formed rectangular tube - steel column for architecture structure is formed by roll cold - winding forming process and hf longitudinal seam weld 建筑結(jié)構(gòu)用冷彎矩形鋼管是采用冷軋或熱軋鋼帶,經(jīng)連續(xù)輥式冷彎及高頻直縫焊接生產(chǎn)形成的矩形鋼管。
Cold - formed rectangular tube - steel column have been developed in recent years and it will be wildly used in many engineering areas such as building , bridge and so on 冷彎矩形鋼管是我國近年來發(fā)展的一種結(jié)構(gòu)用鋼,在建筑、橋梁等領(lǐng)域有著十分廣泛的應(yīng)用前景。
Furthermore , we have several chair - manufacturing expertise , among which the curving technology of chair ' s vertical beams and the technology of punching holes in rectangular tubes have been granted patents by the state 擁有多項(xiàng)座椅制造的專有技術(shù),其中座椅縱梁彎形工藝和矩形管沖孔工藝獲得國家專利。
Although cold - formed rectangular tube - steel column is favorable to industrialization of mass production , the cold forming process increase the yield point and tensile strength , at the same time the cold forming process decrease the ductile behavior , so it ’ s necessary to research the seismic behavior of cold - formed rectangular tube - steel column for architecture structure 冷彎矩形鋼管雖然可以實(shí)現(xiàn)大批量工廠化生產(chǎn),但冷彎矩形鋼管在冷成型過程提高了材料的屈服點(diǎn)和抗拉強(qiáng)度同時(shí)降低了延性,因而冷彎矩形鋼管作為柱材在建筑結(jié)構(gòu)抗震中的應(yīng)用有待進(jìn)一步研究。