- 摘 要
-
（1 中國中元國際工程有限公司， 北京 100089； 2 清華大學(xué)土木工程系， 北京 100084）
［摘要］對寧波新世界廣場5號地塊稀疏外框柱超高層塔樓分別采用一次加載模型、分層加載模型、構(gòu)件施工時間差模型進(jìn)行了考慮材料時變效應(yīng)的施工模擬分析，分析了不同荷載施加方式對核心筒剪力墻和框架柱豎向變形、豎向變形差及桿件內(nèi)力等的影響。研究表明，施工過程中荷載施加方式對結(jié)構(gòu)內(nèi)力和變形影響較大，結(jié)構(gòu)設(shè)計(jì)時應(yīng)根據(jù)結(jié)構(gòu)特點(diǎn)選取合適的計(jì)算模型進(jìn)行計(jì)算；收縮徐變引起的混凝土累積豎向變形占豎向構(gòu)件總變形比例較大，施工階段核心筒收縮徐變變形占總變形比例達(dá)45%；施工過程中由荷載施加方式和材料時變效應(yīng)對結(jié)構(gòu)造成的不利影響，可在構(gòu)件設(shè)計(jì)階段采用強(qiáng)度包絡(luò)設(shè)計(jì)方法或施工階段采取補(bǔ)償變形差的方式來予以考慮。
［關(guān)鍵詞］超高層建筑； 混合結(jié)構(gòu)； 豎向變形差； 收縮徐變； 施工模擬
中圖分類號：TU398-7， TU318， TU973文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)03-0007-07
Construction simulation analysis on super high-rise tower with sparse outer frame column on Ningbo New World Plaza 5th Plot
Zhang Yongbo1,2, Wang Wenyuan1, Wang Hai1, Zhao Xingguo1, Zhang Tongyi1
(1 China IPPR International Engineering Co., Ltd.， Beijing 100089, China; 2 Department of Civil Engineering, Tsinghua University, Beijing 100084, China)
Abstract:Construction simulation analysis was carried out based on super high-rise tower with sparse outer frame column on Ningbo New World Plaza 5th Plot. Three calculation models included over-all loading model, story-by-storey loading model and component model with construction period difference were adopted and analyzed contrastively considering material time-varying effect. The influence of different construction schemes on vertical deformation, vertical deformation difference and internal forces of components of corewall and frame column were studied. Studies show that loading method at construction stage has a great influence on the structure internal force and deformation. Rational calculation model should be selected according to the structural characteristics in structural design. The total accumulated deformation caused by shrinkage and creep of concrete accounts for a higher proportion of total deformation of vertical members. Upon the completion of the project, shrinkage and creep deformation of corewall accounts for 45% of total deformation. The adverse effects caused by loading method at construction process and time dependent properties can be taken into account by strength envelope design method at component design stage or compensate the difference of deformation at construction stage respectively.
Keywords:super high-rise building; hybrid structure; vertical deformations difference; shrinkage and creep; construction simulation
作者簡介：張勇波，博士，工程師，Email：zhangyongbo0320@163.com。
- 下載地址
-
