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東莞市得邦鋼結構工程有限公司

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東城鋼結構工程的特性

　　第一：鋼材較貴
　　采用東莞市得幫鋼結構工程有限公司的鋼結構后結構造價會略有增加，往往影響業(yè)主的選擇。其實上部結構造價占工程總投資的比例很小，增加幅度約為10%。而以高層建筑為例，增加幅度不到2%。顯然，結構造價單一因素不應作為決定采用何種材料的依據(jù)。如果綜合考慮各種因素，尤其是工期優(yōu)勢，則鋼結構將日益受到重視。
　　第二：鋼結構易腐蝕
　　東莞鋼結構必須注意防護，特別是薄壁構件，因此，處于較強腐蝕性介質(zhì)內(nèi)的建筑物不宜采用鋼結構。東莞鋼結構在涂油漆前應徹底除銹，油漆質(zhì)量和涂層厚度均應符合相關規(guī)范要求。在設計中應避免使結構受潮、漏雨，構造上應盡量避免存在于檢查、維修的死角。新建造的鋼結構一般隔一定時間都要重新刷涂料，維護費用較高。國內(nèi)外正在發(fā)展各種高性能的涂料和不易銹蝕的耐候鋼，鋼結構耐銹蝕性差的問題有望得到解決。
　　第三：鋼結構斷裂
　　東莞鋼結構在低溫和某些條件下，可能發(fā)生脆性斷裂，還有厚板的層狀撕裂，都應引起設計者的特別注意。
　　第四：鋼結構不耐火
　　溫度超過250℃以內(nèi)時，材質(zhì)發(fā)生較大變化，不僅強度逐步降低，還會發(fā)生藍脆和徐變現(xiàn)象。溫度達600℃時，鋼材進入塑性狀態(tài)不能繼續(xù)承載。

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