锟斤拷锟斤拷鋼結(ji锟斤拷)锟斤拷(g锟斤拷u)锟叫筹拷锟矫碉拷锟斤拷栓規(gu锟斤拷)锟斤拷锟斤拷M12锟斤拷M16锟斤拷M20锟斤拷M24锟斤拷M30锟斤拷M锟斤拷锟斤拷栓锟斤拷號(h锟斤拷o)锟斤拷锟斤拷(sh锟斤拷)锟街為公锟絈直锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷栓锟斤拷锟斤拷锟斤拷锟杰等硷拷(j锟斤拷)锟斤拷3.6锟斤拷4.6锟斤拷4.8锟斤拷5.6锟斤拷5.8锟斤拷6.8锟斤拷8.8锟斤拷9.8锟斤拷10.9锟斤拷12.9锟斤拷十锟斤拷(g锟斤拷)锟饺硷拷(j锟斤拷)锟斤拷锟斤拷锟斤拷8.8锟斤拷(j锟斤拷)锟斤拷锟斤拷锟斤拷栓锟斤拷锟絴(zh锟斤拷)锟斤拷锟教硷拷辖锟戒摶锟斤拷锟教间摬锟斤拷锟�(j锟斤拷ng)锟絕锟斤拷處锟斤拷(锟斤拷锟�锟斤拷锟截伙拷)锟斤拷通锟絈锟斤拷邚锟�(qi锟斤拷ng)锟斤拷锟斤拷栓锟斤拷8.8锟斤拷(j锟斤拷)锟斤拷锟铰ｏ拷锟斤拷锟斤拷8.8锟斤拷(j锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷通锟斤拷栓也锟斤拷锟斤拷8.8锟斤拷(j锟斤拷)锟斤拷通锟絈锟斤拷锟斤拷通锟斤拷栓锟斤拷锟铰憋拷锟斤拷锟剿拷锟斤拷锟斤拷艿燃锟�(j锟斤拷)锟斤拷锟斤拷锟絎(xu锟斤拷)锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷栓锟斤拷锟杰等硷拷(j锟斤拷)锟斤拷(bi锟斤拷o)號(h锟斤拷o)锟缴兩诧拷锟斤拷?j锟斤拷n)?sh锟斤拷)锟街組锟斤拷锟斤拷锟街別锟斤拷示锟斤拷栓锟侥癸拷锟絈锟斤拷锟斤拷锟斤拷(qi锟斤拷ng)锟饺和诧拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷(qi锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟杰等硷拷(j锟斤拷)锟斤拷4.6锟斤拷(j锟斤拷)锟斤拷锟斤拷栓锟戒含锟絰锟介：锟斤拷锟斤拷?j锟斤拷n)?sh锟斤拷)锟街ｏ拷4.6锟叫碉拷“4”锟斤拷锟斤拷锟斤拷栓锟斤拷锟絴(zh锟斤拷)锟斤拷锟絈锟斤拷锟斤拷锟斤拷(qi锟斤拷ng)锟饺ｏ拷N/mm2锟斤拷锟斤拷1/100锟斤拷锟斤拷锟斤拷示fu≥400N/mm2锟斤拷锟节讹拷锟斤拷锟斤拷?j锟斤拷n)?sh锟斤拷)锟街ｏ拷4.6锟叫碉拷“6”锟斤拷锟斤拷锟斤拷栓锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷(qi锟斤拷ng)锟饺碉拷10锟斤拷锟斤拷锟斤拷锟斤拷示fy/fu=0.6锟斤拷锟缴诧拷锟斤拷?j锟斤拷n)?sh锟斤拷)锟街的乘積锟斤拷4×6=“24”锟斤拷锟斤拷锟斤拷栓锟斤拷锟絴(zh锟斤拷)锟斤拷锟絈锟斤拷锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(qi锟斤拷ng)锟饺ｏ拷锟侥ｏ拷N/mm2锟斤拷锟斤拷1/10锟斤拷锟斤拷锟斤拷示fy≥240N/mm2锟斤拷

锟斤拷锟斤拷鋼結(ji锟斤拷)锟斤拷(g锟斤拷u)锟斤拷通锟斤拷栓锟斤拷锟斤拷锟斤拷锟斤拷锟饺可分烇拷A锟斤拷B锟斤拷C锟斤拷(j锟斤拷)锟斤拷锟斤拷(g锟斤拷)锟饺硷拷(j锟斤拷)锟斤拷A锟斤拷B锟斤拷(j锟斤拷)锟介精锟斤拷锟斤拷栓锟斤拷一锟斤拷锟斤拷锟节機(j锟斤拷)械锟絘(ch锟斤拷n)品锟斤拷C锟斤拷(j锟斤拷)锟斤拷锟斤拷锟斤拷锟剿�锟斤拷锟斤拷锟斤拷锟斤拷锟絝锟斤拷锟解，鋼結(ji锟斤拷)锟斤拷(g锟斤拷u)锟斤拷通锟斤拷栓一锟斤拷锟斤拷锟酵拷锟斤拷锟紺锟斤拷(j锟斤拷)锟斤拷栓锟斤拷锟斤拷锟杰等硷拷(j锟斤拷)4.6锟斤拷(j锟斤拷)锟斤拷4.8锟斤拷(j锟斤拷)锟斤拷