武當山遇真宮山門無降點同步頂升設計研究*
邊智慧1,2, 王鐵成1, 付素娟2, 閻攀科3
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（1天津大學建筑工程學院， 天津 300072； 2 河北省建筑科學研究院， 石家莊 050021；3 河北建研科技有限公司， 石家莊 050021）［摘要］頂升工程大多需要千斤頂多次循環(huán)頂升才能達到指定高度，而循環(huán)頂升過程中代替千斤頂?shù)呐R時支頂構件往往無法絕對頂緊上部結構，在千斤頂回油卸載時結構會產生一定的回降，這種回降會對結構產生一定的不利影響，而無降點頂升可以很好地解決這個問題。從連續(xù)性倒塌機理入手，結合武當山遇真宮山門無降點同步頂升的實例，展開分析無降點頂升原理及優(yōu)缺點，得出無降點頂升時頂升點的合理布置方案。［關鍵詞］頂升; 無降點頂升; 連續(xù)性倒塌; 仿真分析中圖分類號：TU318+.2 文獻標識碼：A 文章編號：1002-848X(2013)24-0089-04Synchronously lift-up design without drop points for the gate of Yuzhen Palace in Wudang MountainBian Zhihui1,2, Wang Tiecheng1, Fu Sujuan2, Yan Panke3（1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Heibei Academy of Building Research, Shijiazhuang 050021, China; 3 Hebei Jianyan Technology Co., Ltd., Shijiazhuang 050021, China）Abstract: In lift-up projects, the jack need to operate multiple cycle jacking to achieve specified height. In the process of the cycle jacking, the structure often suffers a certain amount of drop back when it unloads because the temporary support that acts as jack fails to press the upper structure tightly during the lift-up. The drop back may adversely affect the structure and could be avoided by lift-up technology without drop points. According to the mechanism of progressive collapse and the application case of synchronously lift-up without drop points for the gate of Yuzhen Palace in Wudang Mountain, the principle, advantages and disadvantages of lift-up technology without drop points were analyzed. Finally, reasonable layout of the jack was concluded when lift-up technology without drop points was applied.Keywords: lift-up; lift-up without drop point; progressive collapse; simulation analysis*河北省科技支撐計劃項目（12215801D）。作者簡介：邊智慧，教授級高級工程師，博士研究生，Email：13903217322@126.com。參考文獻［1］胡曉斌,錢稼茹.單層平面鋼框架連續(xù)倒塌動力效應分析［J］. 工程力學, 2008,25(6):38-43.［2］陸新征,林旭川,葉列平,等.地震下高層建筑連續(xù)倒塌數(shù)值模型研究［J］. 工程力學, 2010,27(11):64-70.［3］梁益,陸新征,李易,等. 3 層RC 框架的抗連續(xù)倒塌設計［J］. 解放軍理工大學學報：自然科學版,2007,8(6):559-664.［4］趙新源,林峰,郭祥林,等.局部爆炸作用下混凝土框架結構抗連續(xù)倒塌設計［J］.結構工程師,2009,25(6):12-18.
