雙主梁門式起重機承載能力強,跨度大、整zheng體ti穩wen定ding性xing好hao,品pin種zhong多duo,但dan自zi身shen質zhi量liang與yu相xiang同tong起qi重zhong量liang的de單dan主zhu梁liang門men式shi起qi重zhong機ji相xiang比bi要yao大da些xie,造zao價jia也ye較jiao高gao。根gen據ju主zhu梁liang結jie構gou不bu同tong,桁heng架jia形xing式shi。使shi用yong角jiao鋼gang或huo工gong字zi鋼gang焊han接jie而er成cheng的de結jie構gou形xing式shi,優you點dian是shi造zao價jia低di,自zi重zhong輕qing,抗kang風feng性xing好hao。但dan是shi由you於yu焊han接jie點dian多duo和he桁heng架jia自zi身shen的de缺que陷xian,桁heng架jia梁liang也ye具ju有you撓nao度du大da,剛gang度du小xiao,可ke靠kao性xing相xiang對dui較jiao低di,需xu要yao頻pin繁fan檢jian測ce焊han點dian等deng缺que點dian。適shi用yong於yu對dui安an全quan要yao求qiu較jiao低di,起qi重zhong量liang較jiao小xiao的de場chang地di。
桁heng架jia結jie構gou門men式shi起qi重zhong機ji,多duo用yong於yu橋qiao梁liang專zhuan用yong提ti梁liang機ji既ji可ke兩liang台tai配pei合he抬tai吊diao預yu製zhi梁liang,也ye可ke以yi單dan台tai起qi重zhong機ji配pei雙shuang吊diao具ju起qi吊diao預yu製zhi梁liang,兩liang台tai同tong時shi起qi重zhong的de提ti梁liang機ji各ge自zi的de起qi重zhong量liang一yi般ban為wei450噸,單台起重的提梁機起重量通常可達900噸。它配置支腿行走、天車行(xing)走(zou)及(ji)天(tian)車(che)起(qi)吊(diao)設(she)備(bei),可(ke)以(yi)實(shi)現(xian)全(quan)方(fang)位(wei)機(ji)械(xie)化(hua)動(dong)作(zuo)。主(zhu)要(yao)用(yong)於(yu)將(jiang)預(yu)製(zhi)梁(liang)從(cong)製(zhi)梁(liang)台(tai)提(ti)吊(diao)至(zhi)存(cun)梁(liang)台(tai)位(wei),預(yu)製(zhi)梁(liang)養(yang)護(hu)完(wan)成(cheng)後(hou)將(jiang)其(qi)從(cong)存(cun)梁(liang)台(tai)位(wei)吊(diao)運(yun)到(dao)運(yun)梁(liang)車(che)上(shang)。作(zuo)為(wei)起(qi)重(zhong)設(she)備(bei)完(wan)成(cheng)架橋機的組裝和拆卸。
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