由鋼波紋涵管外圓弧波紋(wen)膜片(pian)對(dui)壓力(li)有(you)線性(xing)特性(xing),所(suo)以(yi)得到(dao)的(de)外圓弧波紋(wen)末(mo)膜片(pian)的(de)計算(suan)結果,還能用(yong)于(yu)膜片(pian)受力(li)變形較大(da)的(de)情況。由此而擬合出的(de)設(she)計公式能適應(ying)于(yu)變形較大(da)的(de)情況。
鋼波紋涵管的外圓弧波紋末膜片的計算如何運行?
從儀(yi)表的(de)(de)(de)結構的(de)(de)(de)特點來考慮,有(you)(you)些鋼波(bo)(bo)紋(wen)(wen)(wen)涵管的(de)(de)(de)無外波(bo)(bo)紋(wen)(wen)(wen)。鋼波(bo)(bo)紋(wen)(wen)(wen)涵管可分為有(you)(you)外波(bo)(bo)紋(wen)(wen)(wen)和無外波(bo)(bo)紋(wen)(wen)(wen)兩(liang)種。對于不同的(de)(de)(de)鋼波(bo)(bo)紋(wen)(wen)(wen)涵管的(de)(de)(de)計算也(ye)是不一樣的(de)(de)(de)。
實(shi)踐(jian)證(zheng)實(shi),用(yong)金屬(shu)波(bo)紋管(guan)(guan)(guan)涵(han)代替金屬(shu)筋混凝土(tu)進(jin)行(xing)涵(han)洞(dong)施工(gong),不管(guan)(guan)(guan)從施工(gong)周期、施工(gong)造(zao)價、環(huan)保意義等方面都(dou)有(you)其不可(ke)相比的優勝(sheng)性,且(qie)用(yong)金屬(shu)波(bo)紋管(guan)(guan)(guan)涵(han)進(jin)行(xing)涵(han)洞(dong)施工(gong),可(ke)大大進(jin)步道路行(xing)車的恬靜度(du)與安(an)全(quan)性,避(bi)免道路中(zhong)涵(han)洞(dong)的“錯臺跳車”現形(xing),有(you)利于解決西(xi)北地區嚴寒霜凍對砼管(guan)(guan)(guan)涵(han)結構的破壞題(ti)目(mu) 。
跟著鋼波紋涵管在(zai)(zai)(zai)世界(jie)各地的(de)安裝使(shi)用(yong),證(zheng)(zheng)實(shi)了(le)此種結(jie)構在(zai)(zai)(zai)各種使(shi)用(yong)情(qing)況下(xia)的(de)通(tong)用(yong)性。在(zai)(zai)(zai)我國(guo)(guo)改革開放后,深圳及大同(tong)(tong)煤礦(kuang)開始(shi)從國(guo)(guo)外入口成品(pin)波(bo)紋(wen)(wen)(wen)管(guan)(guan)涵進行(xing)涵洞施(shi)工(gong)。之后,上海市(shi)公(gong)路治(zhi)理處、上海市(shi)政工(gong)程設(she)(she)(she)計(ji)研(yan)究(jiu)院(yuan)、上海同(tong)(tong)濟大學對金屬(shu)波(bo)紋(wen)(wen)(wen)管(guan)(guan)涵進行(xing)了(le)動(dong)、靜載試驗,結(jie)果表明能知足設(she)(she)(she)計(ji)使(shi)用(yong)要求,填(tian)補了(le)海內的(de)空(kong)缺,且迅速得到推廣應用(yong)。幕(mu)墻一貫反應用(yong)于我國(guo)(guo)各地公(gong)路舉措(cuo)措(cuo)施(shi)建設(she)(she)(she)當中。金屬(shu)波(bo)紋(wen)(wen)(wen)管(guan)(guan)涵投入到了(le)青海公(gong)路施(shi)工(gong)當中,三年的(de)實(shi)踐證(zheng)(zheng)實(shi),金屬(shu)波(bo)紋(wen)(wen)(wen)管(guan)(guan)涵在(zai)(zai)(zai)北方嚴寒地區(qu)完全符合公(gong)路建設(she)(she)(she)當中的(de)涵洞施(shi)工(gong)要求。
公(gong)(gong)(gong)路(lu)工程的(de)涵(han)洞(dong)一般采(cai)(cai)用(yong)(yong)金(jin)(jin)屬(shu)(shu)(shu)筋混凝(ning)(ning)(ning)土制作。現采(cai)(cai)用(yong)(yong)金(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)紋管(guan)涵(han)代(dai)替(ti)金(jin)(jin)屬(shu)(shu)(shu)筋混凝(ning)(ning)(ning)土進行(xing)涵(han)洞(dong)施(shi)工在(zai)(zai)海內時一項新(xin)技術(shu),金(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)紋管(guan)涵(han)以其(qi)機能不亂、安裝利(li)便、有利(li)環保、造價低等長處迅(xun)速在(zai)(zai)公(gong)(gong)(gong)路(lu)施(shi)工中(zhong)代(dai)替(ti)了(le)(le)金(jin)(jin)屬(shu)(shu)(shu)筋混凝(ning)(ning)(ning)土施(shi)工的(de)涵(han)洞(dong),發展(zhan)遠景非常廣闊。在(zai)(zai)公(gong)(gong)(gong)路(lu)施(shi)工中(zhong),應用(yong)(yong)金(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)紋管(guan)涵(han)代(dai)替(ti)金(jin)(jin)屬(shu)(shu)(shu)筋混凝(ning)(ning)(ning)土進行(xing)涵(han)洞(dong)施(shi)工的(de)歷史已經有100多(duo)年(nian)(nian)了(le)(le)。1896年(nian)(nian),美(mei)(mei)國(guo)率提高前輩行(xing)波(bo)(bo)紋管(guan)涵(han)通道、涵(han)管(guan)的(de)可行(xing)性研(yan)究。其(qi)后,在(zai)(zai)美(mei)(mei)國(guo)、加拿大(da)、澳大(da)利(li)亞等國(guo)的(de)公(gong)(gong)(gong)路(lu)建(jian)設中(zhong),均采(cai)(cai)用(yong)(yong)了(le)(le)金(jin)(jin)屬(shu)(shu)(shu)波(bo)(bo)紋管(guan)涵(han)進行(xing)涵(han)洞(dong)的(de)施(shi)工。1990年(nian)(nian),日本高速公(gong)(gong)(gong)路(lu)設計,規(gui)范制定(ding)了(le)(le)波(bo)(bo)紋管(guan)涵(han)設計技術(shu)規(gui)范。
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