- 摘 要
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周廣東1，李愛群1，李杏平1，丁幼亮1，衛(wèi)龍武2（1 東南大學(xué)土木工程學(xué)院，南京 210096； 2 江蘇東大鴻基科技有限公司，南京 210096）
［摘要］為了保證常州紅星大廈平移施工過程的安全和評價(jià)平移就位后結(jié)構(gòu)的性能，對該建筑物平移施工全過程進(jìn)行了實(shí)時(shí)監(jiān)測。分別在結(jié)構(gòu)頂層和層1布置了加速度傳感器以監(jiān)測結(jié)構(gòu)的振動(dòng)響應(yīng)，在柱根部、上托架梁底部和下軌道梁頂部等關(guān)鍵部位布置了應(yīng)變傳感器以監(jiān)測結(jié)構(gòu)的應(yīng)變。監(jiān)測結(jié)果表明：首次啟動(dòng)和頂推機(jī)構(gòu)失效會(huì)引起較大的結(jié)構(gòu)振動(dòng)，正常平移過程中結(jié)構(gòu)的振動(dòng)與普通結(jié)構(gòu)在環(huán)境激勵(lì)下的振動(dòng)相當(dāng)；平移施工過程在上部結(jié)構(gòu)中引起的附加應(yīng)變可以忽略不計(jì)，在軌道中引起的應(yīng)變較大，設(shè)計(jì)時(shí)需要引起重視。實(shí)時(shí)監(jiān)測數(shù)據(jù)為結(jié)構(gòu)平移施工過程提供技術(shù)支撐，監(jiān)測結(jié)果可為以后的平移工程設(shè)計(jì)和施工提供參考。
［關(guān)鍵詞］建筑整體平移；加速度；應(yīng)變；監(jiān)測
中圖分類號(hào)：TU375文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2012)04-0139-05
Analysis of real-time whole process monitoring for high-rise structural relocation moving
Zhou Guangdong1, Li Aiqun1, Li Xingping1, Ding Youliang1, Wei Longwu2(1 School of Civil Engineering, Southeast University, Nanjing 210096, China; 2 Jiangsu Dongda Special Foundation Engineering Co., Ltd., Nanjing 210096, China)
Abstract:In order to keep the safety of the construction process and evaluate the performance of the relocated structure, the monolithic moving structure of the highest aspect ratio in Changzhou Hongxing Building was real-time monitored in the whole construction process. The vibration was measured using acceleration sensors that are located in the top and bottom of the structure. The strain was measured using strain gauges that are pasted on the root of the columns, the bottom edge of the underpinning truss and the top edge of the rail beam. The monitoring results indicate that the first start and the failure of pushing system and dragging system induce dramatic vibration; the vibration induced by moving process is approximately equal to the vibration excited by ambient load; the additional strain induced by structural relocation moving can be ignored; the strain in the moving track need pay special attention in designing structural moving engineering. The data of real-time monitoring can offer a technological support for the process of structure relocation moving. The results can provide reference for similar moving engineering design and construction process.
Keywords:structural relocation moving; acceleration; strain; monitoring
*國家杰出青年基金資助項(xiàng)目(50725858)，東南大學(xué)優(yōu)秀博士學(xué)位論文基金（YBJJ0922），住房和城鄉(xiāng)建設(shè)部科學(xué)技術(shù)項(xiàng)目（2010-K9-36）。
作者簡介：周廣東，博士研究生，Email：dagongzhougd@163.com。
參考文獻(xiàn)
［1］ 吳二軍, 李愛群, 黃鎮(zhèn)，等. 江都市供電樓雙向整體平移工程靜動(dòng)態(tài)實(shí)時(shí)監(jiān)測［J］. 工業(yè)建筑, 2003, 33(10): 75-78
［2］ 杜健民, 袁迎曙, 牟艷君，等. 整體平移后六層磚混結(jié)構(gòu)住宅樓整體提升的施工與監(jiān)測［J］. 建筑技術(shù), 2006, 37(6): 415-417
［3］ 吳二軍. 建筑物整體平移關(guān)鍵技術(shù)研究與應(yīng)用［D］.南京: 東南大學(xué), 2003
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