近(jin)年(nian)來(lai)

，隨(sui)著(zhe)我(wo)國(guo)鋼(gang)鐵(tie)產(chan)量(liang)的(de)不(bu)斷(duan)增(zeng)長(chang)
，鋼(gang)結(jie)構(gou)以(yi)其(qi)自(zi)身(shen)的(de)優(you)勢(shi)，在(zai)建(jian)築(zhu)中(zhong)所(suo)占(zhan)的(de)比(bi)例(li)越(yue)來(lai)越(yue)大(da)，鋼(gang)結(jie)構(gou)管(guan)桁(heng)架(jia)也(ye)取(qu)得(de)較(jiao)大(da)的(de)突(tu)破(po)。鋼(gang)結(jie)構(gou)管(guan)桁(heng)架(jia)的(de)最(zui)大(da)優(you)點(dian)是(shi)能(neng)將(jiang)人(ren)們(men)對(dui)建(jian)築(zhu)物(wu)的(de)功(gong)能(neng)要(yao)求(qiu)、ganguanyaoqiuyijijingjixiaoyiyaoqiuwanmeidijiehezaiyiqi。gangjiegouguanhengjiayitadutedeyoushishoudaorenmendeqinglai。jiexialaijieshaogangjiegouguanhengjiapilaosunshangdejiejuecuoshi。
　　改gai變bian鋼gang結jie構gou管guan桁heng架jia中zhong的de拉la伸shen殘can餘yu應ying力li，有you不bu少shao工gong藝yi方fang法fa和he工gong藝yi措cuo施shi。其qi中zhong用yong得de最zui多duo的de是shi回hui火huo處chu理li工gong藝yi，即ji將jiang構gou件jian整zheng體ti放fang入ru高gao溫wen爐lu中zhong加jia熱re
，一yi般ban加jia熱re到dao600～800度(du)，之(zhi)後(hou)再(zai)均(jun)勻(yun)地(di)逐(zhu)步(bu)冷(leng)卻(que)。由(you)於(yu)加(jia)熱(re)和(he)冷(leng)卻(que)過(guo)程(cheng)中(zhong)結(jie)構(gou)變(bian)形(xing)的(de)均(jun)勻(yun)整(zheng)體(ti)化(hua)
，從(cong)而(er)使(shi)局(ju)部(bu)過(guo)高(gao)的(de)殘(can)餘(yu)應(ying)力(li)和(he)應(ying)變(bian)得(de)到(dao)鬆(song)弛(chi)。對(dui)大(da)型(xing)構(gou)件(jian)來(lai)說(shuo)，這(zhe)種(zhong)方(fang)法(fa)要(yao)求(qiu)有(you)很(hen)大(da)尺(chi)度(du)的(de)高(gao)溫(wen)加(jia)熱(re)裝(zhuang)置(zhi)
，因(yin)此(ci)，能(neng)處(chu)理(li)構(gou)件(jian)的(de)尺(chi)度(du)受(shou)實(shi)際(ji)加(jia)熱(re)裝(zhuang)置(zhi)設(she)備(bei)的(de)限(xian)製(zhi)。
　　在早期鋼結構橋梁的製造過程中，其重要的焊接部位使用過手工敲擊，試圖減少焊接部位的殘餘應力、以yi便bian提ti高gao結jie構gou疲pi勞lao壽shou命ming。但dan手shou工gong敲qiao擊ji的de頻pin度du很hen低di，輸shu入ru到dao結jie構gou中zhong的de能neng量liang有you限xian，因yin此ci效xiao果guo不bu顯xian著zhu。在zai一yi些xie金jin屬shu加jia工gong製zhi造zao業ye
，由you於yu一yi些xie要yao部bu件jian的de加jia工gong裝zhuang配pei精jing度du要yao求qiu日ri益yi提ti高gao，降jiang低di構gou件jian殘can餘yu應ying力li
、提ti高gao構gou件jian使shi用yong壽shou命ming的de要yao求qiu更geng為wei迫po切qie，從cong而er發fa展zhan了le一yi種zhong稱cheng為wei高gao速su噴pen丸wan的de技ji術shu
，其qi效xiao果guo十shi分fen顯xian著zhu，能neng明ming顯xian地di提ti高gao疲pi勞lao性xing能neng和he抗kang應ying力li腐fu蝕shi的de能neng力li並bing獲huo得de了le廣guang泛fan的de應ying用yong。為wei提ti高gao敲qiao擊ji的de頻pin率lv和he能neng量liang，進jin一yi步bu研yan究jiu使shi用yong振zhen動dong方fang法fa來lai降jiang低di結jie構gou的de殘can餘yu應ying力li。對dui尺chi度du不bu大da的de部bu件jian或huo零ling件jian
，可ke將jiang其qi直zhi接jie安an裝zhuang在zai振zhen動dong台tai上shang進jin行xing激ji振zhen。
　　研yan究jiu表biao明ming
，振zhen動dong台tai上shang的de高gao頻pin能neng量liang輸shu入ru到dao金jin屬shu構gou件jian中zhong，對dui鬆song弛chi構gou件jian中zhong的de殘can餘yu虛xu力li有you一yi定ding的de效xiao果guo。由you於yu高gao頻pin振zhen動dong台tai的de尺chi度du有you限xian，因yin此ci隻zhi能neng對dui尺chi度du不bu大da的de構gou件jian采cai用yong這zhe種zhong方fang法fa。對dui尺chi度du較jiao大da的de結jie構gou
，可ke在zai重zhong要yao的de焊han接jie件jian上shang采cai用yong局ju部bu振zhen動dong的de方fang法fa。這zhe種zhong方fang法fa的de難nan度du在zai於yu，既ji要yao求qiu作zuo用yong在zai結jie構gou焊han縫feng區qu振zhen動dong器qi的de尺chi寸cun，又you必bi須xu要yao有you足zu夠gou的de質zhi量liang和he很hen高gao的de振zhen動dong作zuo用yong頻pin率lv

，因yin為wei輸shu入ru到dao金jin屬shu結jie構gou件jian中zhong的de能neng量liang是shi與yu振zhen43動器的質量和作用頻率平方的乘積成正比。
　　dandangnengliangdeshurumeiyoudadaoxiangyingdeliangjishi
，jiangdicanyuyinglidexiaoguojiubumingxian
，yinci，suiranmuqiancaiyonggaigaopindianyuanjinxingjizhendezhendongqijishuyijinghenchengshu
，bingqieqitijixiao，pinlvjiaogao
，dantadeshurunenglianghendi，yincizhezhongchengshudezhendongqizhinengyongyushiyanshitiaojianxiajinxingjiegouzhendongzaoshengdepufenxi。weilekefushangshugongyifangfahegongyicuoshidequedian


，zaigangjiegouqiaoliangzhongfazhanleyizhongchengweigaopinchaoshengbochongjizhuangzhidejishu。zhezhongjishuzhuangzhijuyoutijixiao
，pinlvgao
，zaigangqiaozhizaohepinzhuangzhongnengfangbiandishiyongdengtedian，yincizhidezaigangjiegouqiaoliangzhizuozhongtuiguangshiyong。