- 摘 要
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張麗華
（河南省南陽市建設(shè)工程質(zhì)量監(jiān)督檢驗站，南陽 473000）[摘要] 南陽機(jī)場航站樓屋蓋采用復(fù)合波紋板式結(jié)構(gòu)，鋼屋架設(shè)計最大跨度36m。屋蓋結(jié)構(gòu)施工過程中，設(shè)置了四組格構(gòu)柱作為臨時支撐，支撐體系的設(shè)計、施工以及卸載方法是南陽機(jī)場航站樓鋼結(jié)構(gòu)工程的關(guān)鍵。從卸載工況的計算分析、支撐體系的選型設(shè)計和施工、卸載具體步驟確定及其針對性的應(yīng)急措施等方面介紹了南陽機(jī)場鋼結(jié)構(gòu)安裝支撐體系及卸載施工技術(shù)。卸載實施結(jié)果證明整套施工技術(shù)是合理可行的，為類似工程的施工提供了借鑒。
[關(guān)鍵詞] 鋼結(jié)構(gòu)屋架；支撐體系；卸載；安全措施
中圖分類號：TU398.7 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2012) Sl-0671-03Unloading construction technique for steel roof of terminal building of Nanyang Airport
Zhang Lihua
( Quality Supervision and Test Station of Construction Engineering, Nanyang, Henan Province, Nanyang 473000, China)Abstract: The steel roof of the terminal building of Nanyang Airport is the composite structure of the corrugated steel plate and the thin-layer concrete while the largest span of the supporting frames of the roof is 36m. During the construction process of the steel roof, four groups oflattice columns acted as the temporary braces are set up. The design, construction of the brace system as well as the unloading construction are the key processes of the steel roof. Both the brace system and the unloading construction technique for the steel roof of the terminal building of Nanyang Airport were summarized, including the analysis of the unloading cases, design of the brace system, unloading process and the safety precautions. The practice of the unloading technique is reasonable and practical and this provides a reference for the analogous construction in the future.
Keywords: steel roof; brace system; unloading; safety precautions
