884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

張盼盼1, 2，趙昕3，鄭毅敏3

1 同濟(jì)大學(xué)建筑工程系， 上海 200092； 2 山東同圓設(shè)計(jì)集團(tuán)有限公司， 濟(jì)南 250101；

3 同濟(jì)大學(xué)建筑設(shè)計(jì)研究院（集團(tuán)）有限公司， 上海 200092）

［摘要］采用B3模型分析了超高層混合結(jié)構(gòu)豎向構(gòu)件壓縮變形、結(jié)構(gòu)變形補(bǔ)償、構(gòu)件差異變形及伸臂合攏時(shí)間對(duì)伸臂內(nèi)力的影響。研究結(jié)果表明：樓板施工前變形可通過(guò)控制設(shè)計(jì)標(biāo)高得到補(bǔ)償，而樓板施工后變形要由B3模型計(jì)算分析得到，然后進(jìn)行預(yù)補(bǔ)償；補(bǔ)償周期較短時(shí)，樓板施工后變形最大值出現(xiàn)在中間某層，隨著補(bǔ)償周期的增加，最大值出現(xiàn)樓層呈上移趨勢(shì)；不同的施工方法，施工驗(yàn)收時(shí)的標(biāo)高誤差區(qū)別較大，采用設(shè)計(jì)標(biāo)高+標(biāo)高補(bǔ)償值的施工方法可使標(biāo)高誤差最小；通過(guò)混凝土部分的標(biāo)高補(bǔ)償和鋼構(gòu)件部分的長(zhǎng)度預(yù)調(diào)整，結(jié)構(gòu)在補(bǔ)償周期時(shí)達(dá)到設(shè)計(jì)標(biāo)高；標(biāo)高補(bǔ)償值具有時(shí)變性，補(bǔ)償周期時(shí)標(biāo)高補(bǔ)償值為零；伸臂連接時(shí)間越遲對(duì)伸臂受力越有利。

［關(guān)鍵詞］超高層混合結(jié)構(gòu)； B3模型； 變形補(bǔ)償； 標(biāo)高控制； 差異變形； 伸臂合攏時(shí)間

中圖分類(lèi)號(hào)：TU3987，TU973文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002848X(2013)06004505

Vertical members shortening and compensation analysis of superhigh-rise composite buildings

Zhang Panpan1, 2, Zhao Xin3, Zheng Yimin3

(1 Department of Building Engineering, Tongji University, Shanghai 200092, China;2 Shandong Tongyuan Design Group Co., Ltd., Jinan 250101, China;3 Architectural Design & Research Institute of Tongji University（Group）Co., Ltd., Shanghai 200092, China）

Abstract:B3 model was adopted to analyze compression deformation of vertical members, the deformation compensation of the super highrise composite building, and the influence of differential deformation between the super column and the corewall as well as the lockin time of the outriggers on internal forces of the outriggers. The results show that shortening up to casting of solutionfloor level can be compensated by the controlling of design elevation and the shortening subsequent to casting of solutionfloor level need to be precompensated by the calculation of B3 model. The maximum shortening subsequent to casting floor occurs in some middle floors when the compensation period is short, and the maximum shortening has a tendency to move the top floor with the compensation period increasing. The elevation differences are huge with different construction methods when the construction inspection, and the method of the design elevation plus the compensation is much better and can be adopted to reduce the difference. The vertical members can reach the design elevation through the elevation compensation of concrete part and the length preadjustment of the steel part. The elevation compensation is time varying and its value returns to zero in compensation period. The later lockin time of the outrigger is, the much more advantageous the forces of the outrigger have.

Keywords:super highrise composite building； B3 model； deformation compensation；elevation controlling； differential deformation； lockin time of the outrigger

作者簡(jiǎn)介：張盼盼，碩士，助理工程師， Email：zppsmile@126.com。

參考文獻(xiàn)

［1］JGJ 3—2010 高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程［S］. 北京：中國(guó)建筑工業(yè)出版社，2011.

［2］羅文斌, 張保印. 超高層建筑S+RC混合結(jié)構(gòu)豎向變形差的工程對(duì)策［J］. 建筑結(jié)構(gòu)學(xué)報(bào), 2000, 21(6):6873.

［3］徐培福, 傅學(xué)怡, 王翠坤, 等．復(fù)雜高層建筑結(jié)構(gòu)設(shè)計(jì)［M］. 北京: 中國(guó)建筑工業(yè)出版社, 2005.

［4］周緒紅, 黃湘湘, 王毅紅, 等. 鋼框架鋼筋混凝土核心筒體系豎向變形差異的計(jì)算［J］. 建筑結(jié)構(gòu)學(xué)報(bào), 2005, 26(2):6673.

［5］周緒紅, 黃湘湘, 王毅紅, 等. 鋼框架鋼筋混凝土核心筒體系豎向變形差異補(bǔ)償對(duì)結(jié)構(gòu)性能的影響［J］. 土木工程學(xué)報(bào), 2006, 39(4):1519.

 ［6］沈蒲生.巨型框架結(jié)構(gòu)設(shè)計(jì)與施工［M］. 北京: 機(jī)械工業(yè)出版社, 2007.

［7］PARK H S. Optimal compensation of differential column shortening in highrise buildings［J］.The Structural Design of Tall and Special Buildings, 2003，12(1):4966.

［8］BAZANT Z P, BAWEJA S. Creep and shrinkage prediction model for analysis and design of concrete structures\|Model B3［J］. Materials and Structures, 1995,28(6):357365.

［9］ACI 209R92 Prediction of creep，shrinkage，and temperature effects in concrete structures［S］. ACI Committee， 1997.

［10］CEB\|FIP Model code 1990［S］. London:Thomas Telford,1993.

［11］FINTEL M, GHOSH S K, IYENGAR H. Column shortening in tall structures：prediction and compensation［M］.Portland Cement Association, 1987.

［12］GARDNER N J. Comparison of prediction provisions for drying shrinkage and creep of normalstrength concretes［J］.Canadian Journal of Civil Engineering, 2004,30(5):767775.

［13］BAZANT Z P, KIM J．Consequences of diffusion theory for shrinkage of concrete ［J］. Material and Structures，1991，24(5)：323326.

［14］趙昕，張盼盼，鄭毅敏，等. 基于B3模型的豎向構(gòu)件差異變形分析［J］. 建筑科學(xué)與工程學(xué)報(bào),2010, 27(1):108116.