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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/QYBM3926/637280896478388672/2279973.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="osum8ar" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/QYBM3926/637280896478388672/2279973.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lv8qkgx" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>鋼橋設(shè)計(jì)深化價(jià)格</p><p><span>***更新：</span>2020-06-28 19:26:14</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gvsfh3j" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州橋友信息科技有限公司</a></p><p><span>聯(lián)系人：</span>崔經(jīng)理</p><p><span>郵箱: </span>2652970874@qq.com</p><p><span>電話: </span>17368130323</p><p><span>傳真: </span>0512_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0512-62697703</p><p><span>地址: </span>高新區(qū)竹園路209號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="hby7if7" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="w8lu7ln" class="box"><p><p style="text-indent:25px">隨著時(shí)代經(jīng)濟(jì)的高速發(fā)展，人類建造的各種大型工程規(guī)模巨大，結(jié)構(gòu)復(fù)雜，功能眾多。這些工程投資巨大，技術(shù)復(fù)雜，環(huán)境影響嚴(yán)重，襲擊破壞幾率增大（風(fēng)、浪、地震、海嘯、船撞等），維修、養(yǎng)護(hù)、加固難度大。因而，過(guò)去只限于從設(shè)計(jì)，鋼橋設(shè)計(jì)深化價(jià)格、施工質(zhì)量的單一層面上去尋求結(jié)構(gòu)的安全性是不夠的?；诮Y(jié)構(gòu)耐久性設(shè)計(jì)的新設(shè)計(jì)理念認(rèn)為，橋梁耐久性的保證是需要橋梁設(shè)計(jì)、施工、運(yùn)營(yíng)和維護(hù)各個(gè)階段共同努力的結(jié)果，鋼橋設(shè)計(jì)深化價(jià)格。目前設(shè)計(jì)標(biāo)準(zhǔn)定義的均是設(shè)計(jì)建成時(shí)期結(jié)構(gòu)具有的使用性能，鋼橋設(shè)計(jì)深化價(jià)格，而對(duì)處于使用狀態(tài)的性能隨時(shí)間的變化卻缺乏充分的認(rèn)識(shí)和儲(chǔ)備，簡(jiǎn)單講，似乎只考慮了建造期造價(jià)成本，卻忽視了運(yùn)營(yíng)期的維護(hù)成本和與使用壽命相對(duì)應(yīng)的成本效益，這與可持續(xù)發(fā)展的觀點(diǎn)是相背的。在接踵而來(lái)的改擴(kuò)建工程設(shè)計(jì)中可以深刻地體會(huì)到這一點(diǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鋼橋設(shè)計(jì)深化價(jià)格" src="https://tyunfile.71360.com/UploadFile/QYBM3926/637280896478388672/2279973.png"></div><p style="text-indent:25px">工藝用輥壓機(jī)及型鋼矯直機(jī)先將鋼板或型鋼整平、調(diào)直，再按用施工圖(按照設(shè)計(jì)圖分解而成)放樣制做的樣板、樣桿在鋼料上劃出切割線，用剪切機(jī)、電鋸或切割機(jī)切割鋼料。除了用精密焰割機(jī)使切割邊緣達(dá)到光潔度者外，一般需用刨邊機(jī)或銑邊機(jī)進(jìn)行邊緣加工。構(gòu)件在工廠組裝，以往常用鉚接，現(xiàn)以焊接為主。工地連接過(guò)去也用鉚接，現(xiàn)多用**度螺栓連接。鉚釘或螺栓的孔眼，可用軌行鉆床或手持電鉆、風(fēng)鉆制孔。鉚接桿件可用風(fēng)動(dòng)鉚釘槍或鉚釘機(jī)鉚合。焊接桿件應(yīng)按焊縫類型與設(shè)計(jì)要求，分別使用埋弧自動(dòng)焊、半自動(dòng)焊或手工焊。為保證焊接質(zhì)量，對(duì)**度或厚鋼板可采用預(yù)熱工藝。**度螺栓連接的摩擦面，用噴丸（砂）除銹和表面粗糙處理后，噴鋁或涂無(wú)機(jī)富鋅漆以保證摩擦系數(shù)。構(gòu)件制成后，經(jīng)過(guò)整修、試裝、除銹、油漆（底漆兩度、連接面除外）等工序，然后發(fā)往工地拼裝架設(shè)。在鋼橋的制造過(guò)程中，要有嚴(yán)格的質(zhì)量檢查制度。對(duì)于焊縫除進(jìn)行外觀檢查外，應(yīng)按規(guī)程或設(shè)計(jì)要求用超聲波或 X光（或у射線）探傷檢驗(yàn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鋼橋設(shè)計(jì)深化價(jià)格" src="https://tyunfile.71360.com/UploadFile/QYBM3926/637280895893554688/4397016.png"></div><p style="text-indent:25px">鋼橋小知識(shí)：鋼橋的大缺點(diǎn)是容易腐蝕，如果鋼橋的設(shè)計(jì)和養(yǎng)護(hù)不當(dāng)，將嚴(yán)重影響鋼橋的耐久性和使用壽命。目前鋼橋采用多的重防腐油漆涂層的防腐壽命只有10年左右，鋼橋在設(shè)計(jì)使用期內(nèi)需要多次進(jìn)行除去浮銹、舊漆和重新涂裝。鋼橋所有有可能腐蝕的部位都必須留有足夠的空間和進(jìn)入通道，如箱形結(jié)構(gòu)橫隔板需要開孔并且滿足人員通過(guò)的小尺寸要求，保證結(jié)構(gòu)的可維護(hù)性。否則必須采取可靠措施，如將結(jié)構(gòu)做成完全封閉形式阻止鋼材銹蝕產(chǎn)生的條件等，確保鋼橋結(jié)構(gòu)在設(shè)計(jì)使用期內(nèi)不發(fā)生腐蝕，或者腐蝕控制在預(yù)定的程度之內(nèi)。應(yīng)盡可能避免采用梁高或梁寬很小的箱形截面或不必要的封閉式結(jié)構(gòu)，減小箱內(nèi)焊接和養(yǎng)護(hù)的難度。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/427205.html</p></div></div></div></div></div><div id="mt3das3" class="page-right twoColRt"><div id="7dv2rjt" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="b2gwy78" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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