- 摘 要
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王 策 （清華大學(xué) 北京 100084）房秀梅 （冶金部建筑研究總院 北京 100088）
[提要] 詳細(xì)介紹了采用液壓千斤頂進(jìn)行新加坡MEGA匯展中心展覽大廳巨型鋼結(jié)構(gòu)屋蓋整體吊裝的關(guān)鍵技術(shù)：用計算機(jī)雙重控制吊點(diǎn)的位移和內(nèi)力，自動調(diào)整吊點(diǎn)間的高差和吊點(diǎn)內(nèi)力；采用機(jī)械鎖和液壓鎖雙保險措施使吊裝平穩(wěn)等。工程已于1999年3月竣工。
[關(guān)鍵詞] 巨型鋼屋蓋 整體吊裝 液壓千斤頂Singapore MEGA exhibition center which is completed in March 1999 is composed of 6 halls and auxil-
iary buildings. Main structure is 99m×96m large-span steel structure which is composed of 3 pieces of huge spatial trusses. The steel roof structure is assembled on the ground then lifted to the design level by hydraulic jacks.Detail methods of the whole body lifting of the steel structure roof are introduced. The advantage of hydraulic jack lifting is illustrated through the project.
Keywords: steel roof; integral hoisting; hydraulic jack
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