由鋼波紋涵管外(wai)圓弧波紋膜(mo)片對壓力(li)有線性特性,所(suo)以得到的(de)(de)(de)外(wai)圓弧波紋末膜(mo)片的(de)(de)(de)計算結果,還(huan)能用于膜(mo)片受(shou)力(li)變形較大的(de)(de)(de)情況。由此而擬合出的(de)(de)(de)設計公式能適應于變形較大的(de)(de)(de)情況。
鋼波紋涵管的外圓弧波紋末膜片的計算如何運行?
從(cong)儀表的(de)結構的(de)特點來考(kao)慮,有(you)些鋼波(bo)(bo)紋(wen)涵(han)管(guan)(guan)的(de)無(wu)外(wai)波(bo)(bo)紋(wen)。鋼波(bo)(bo)紋(wen)涵(han)管(guan)(guan)可分為(wei)有(you)外(wai)波(bo)(bo)紋(wen)和無(wu)外(wai)波(bo)(bo)紋(wen)兩種。對于不同的(de)鋼波(bo)(bo)紋(wen)涵(han)管(guan)(guan)的(de)計算(suan)也(ye)是(shi)不一樣(yang)的(de)。
實踐證實,用(yong)金屬波紋管涵代替金屬筋混凝(ning)土進(jin)(jin)行涵洞(dong)(dong)施(shi)(shi)工(gong),不管從施(shi)(shi)工(gong)周期、施(shi)(shi)工(gong)造價、環(huan)保意義等(deng)方面都有(you)其不可相(xiang)比的(de)(de)優(you)勝(sheng)性,且(qie)用(yong)金屬波紋管涵進(jin)(jin)行涵洞(dong)(dong)施(shi)(shi)工(gong),可大(da)大(da)進(jin)(jin)步(bu)道路行車的(de)(de)恬(tian)靜度與安全性,避免道路中涵洞(dong)(dong)的(de)(de)“錯臺跳車”現形,有(you)利于解(jie)決西北地區嚴(yan)寒霜凍(dong)對砼(tong)管涵結構的(de)(de)破壞題目 。
跟著鋼波紋涵管在(zai)世界各(ge)(ge)地(di)的安裝(zhuang)使(shi)用,證實(shi)(shi)了此種結構在(zai)各(ge)(ge)種使(shi)用情況下的通用性。在(zai)我國改革(ge)開(kai)放(fang)后,深圳及大(da)同煤(mei)礦(kuang)開(kai)始(shi)從國外入口成品波紋(wen)管(guan)涵(han)(han)(han)(han)進(jin)行涵(han)(han)(han)(han)洞施(shi)(shi)(shi)工(gong)。之后,上海(hai)市(shi)公路(lu)治理處(chu)、上海(hai)市(shi)政(zheng)工(gong)程設計(ji)研究院、上海(hai)同濟(ji)大(da)學對金屬(shu)(shu)波紋(wen)管(guan)涵(han)(han)(han)(han)進(jin)行了動、靜載試驗,結果表(biao)明能知足(zu)設計(ji)使(shi)用要(yao)求,填補(bu)了海(hai)內的空缺,且迅速得到推(tui)廣應用。幕墻一貫反應用于我國各(ge)(ge)地(di)公路(lu)舉措措施(shi)(shi)(shi)建(jian)設當中。金屬(shu)(shu)波紋(wen)管(guan)涵(han)(han)(han)(han)投入到了青海(hai)公路(lu)施(shi)(shi)(shi)工(gong)當中,三年的實(shi)(shi)踐證實(shi)(shi),金屬(shu)(shu)波紋(wen)管(guan)涵(han)(han)(han)(han)在(zai)北(bei)方嚴寒地(di)區完全符合公路(lu)建(jian)設當中的涵(han)(han)(han)(han)洞施(shi)(shi)(shi)工(gong)要(yao)求。
公路(lu)工(gong)(gong)(gong)程的(de)涵(han)(han)(han)(han)洞一般采(cai)(cai)用(yong)金(jin)(jin)(jin)屬(shu)(shu)(shu)筋(jin)(jin)混(hun)凝土(tu)制(zhi)作(zuo)。現(xian)采(cai)(cai)用(yong)金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)紋管(guan)(guan)涵(han)(han)(han)(han)代(dai)替(ti)金(jin)(jin)(jin)屬(shu)(shu)(shu)筋(jin)(jin)混(hun)凝土(tu)進行(xing)(xing)涵(han)(han)(han)(han)洞施(shi)工(gong)(gong)(gong)在(zai)海內時一項(xiang)新技術(shu),金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)紋管(guan)(guan)涵(han)(han)(han)(han)以(yi)其(qi)(qi)機能不亂、安裝利便、有利環保、造價低等長處(chu)迅速在(zai)公路(lu)施(shi)工(gong)(gong)(gong)中代(dai)替(ti)了金(jin)(jin)(jin)屬(shu)(shu)(shu)筋(jin)(jin)混(hun)凝土(tu)施(shi)工(gong)(gong)(gong)的(de)涵(han)(han)(han)(han)洞,發展(zhan)遠(yuan)景(jing)非常廣闊。在(zai)公路(lu)施(shi)工(gong)(gong)(gong)中,應用(yong)金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)紋管(guan)(guan)涵(han)(han)(han)(han)代(dai)替(ti)金(jin)(jin)(jin)屬(shu)(shu)(shu)筋(jin)(jin)混(hun)凝土(tu)進行(xing)(xing)涵(han)(han)(han)(han)洞施(shi)工(gong)(gong)(gong)的(de)歷史已經有100多(duo)年了。1896年,美國(guo)率提高前輩(bei)行(xing)(xing)波(bo)紋管(guan)(guan)涵(han)(han)(han)(han)通道、涵(han)(han)(han)(han)管(guan)(guan)的(de)可行(xing)(xing)性研究。其(qi)(qi)后,在(zai)美國(guo)、加拿大(da)、澳大(da)利亞等國(guo)的(de)公路(lu)建設(she)(she)中,均采(cai)(cai)用(yong)了金(jin)(jin)(jin)屬(shu)(shu)(shu)波(bo)紋管(guan)(guan)涵(han)(han)(han)(han)進行(xing)(xing)涵(han)(han)(han)(han)洞的(de)施(shi)工(gong)(gong)(gong)。1990年,日本高速公路(lu)設(she)(she)計,規范制(zhi)定了波(bo)紋管(guan)(guan)涵(han)(han)(han)(han)設(she)(she)計技術(shu)規范。
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