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(華東建筑設(shè)計研究院有限公司, 上海 200011)
[摘要]內(nèi)爬外掛式塔吊在超高層建筑混凝土核心筒領(lǐng)先于外部框架施工中應(yīng)用較多,墻體上爬架附著節(jié)點的受力性能直接影響到塔吊及剪力墻的安全性。結(jié)合實際工程項目,對爬架附著節(jié)點的力學(xué)性能分析方法和結(jié)果評價方法進(jìn)行了研究。針對不滿足設(shè)計和施工要求情況,提出了提高鋼筋配筋率、預(yù)埋鋼骨、增設(shè)鋼支撐和設(shè)置使上、下爬架協(xié)同受力拉桿四種技術(shù)措施,并給出了四種技術(shù)措施的特點,可供相關(guān)技術(shù)人員參考。
[關(guān)鍵詞]超高層建筑; 內(nèi)爬外掛式塔吊; 多尺度模型; 性能評價
中圖分類號:TU745-1文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2017)12-0017-06
Study on mechanical performance analysis methods of attachment joint of external hanging and internal climbing crane hanged on super high-rise building
Cui Jiachun
(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200011, China)
Abstract:Hanging and internal climbing cranes are widely used in super high-rise building construction which the concrete core tube is constructed faster than the exterior frame. The safety of the tower crane and shear wall is directly affected by the mechanical behavior of the attachment joint between climbing-frame and the wall. Therefore, through practical projects, the mechanical performance analysis method and result evaluation method of attachment joint were researched. When joint performance can not meet the requirements of design and construction safety, four technical measures, such as improving the ratio of reinforcement, embedding the steel component, setting the supporting steel beam, and setting the tension rod between up and down climbing-frame, were put forward. The characteristics of these four kinds of technical measures were given, which can be used as reference for the relevant engineers.
Keywords:super high-rise building; external hanging and internal climbing crane; multi-scale model; performance evaluation
*“上海超高層建筑設(shè)計工程技術(shù)研究中心”建設(shè)項目(14DZ2252800)。
作者簡介:崔家春,博士,高級工程師,Email: jiachun_cui@arcplus.com.cn。