全國
手機版|
關注公眾號|
下載手機APP橋(qiao)式(shi)起(qi)重(zhong)機(ji)的(de)兩(liang)個(ge)主(zhu)梁(liang)都(dou)製(zhi)成(cheng)均(jun)勻(yun)向(xiang)上(shang)拱(gong)起(qi)的(de)形(xing)狀(zhuang)，稱(cheng)上(shang)拱(gong)度(du)。橋(qiao)式(shi)起(qi)重(zhong)機(ji)製(zhi)成(cheng)一(yi)定(ding)上(shang)拱(gong)度(du)的(de)形(xing)狀(zhuang)，是(shi)防(fang)止(zhi)起(qi)重(zhong)機(ji)械(xie)在(zai)吊(diao)物(wu)時(shi)，主(zhu)梁(liang)產(chan)生(sheng)下(xia)撓(nao)；jinliangjianshaoxiaochezaidiaowuyunxingzhongchanshengdefujiazulihuozixinghuadong。ciwai，juyouyidingdeshanggongdu，dangqizhongjidiaoqifuheshi，nengshidacheyunxingjigouchuyujiaoyoulidegongzuozhuangtai。
上拱度的拱值規定為跨度的1／1000。
