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(中國建筑東北設(shè)計(jì)研究院有限公司， 沈陽 110006)

［摘要］計(jì)算了中國建筑千米級(jí)摩天大樓在施工階段和使用階段的溫度作用效應(yīng)，考慮日照溫差、季節(jié)溫差、內(nèi)部空調(diào)作用及垂直溫度遞減影響，給出四種溫度作用工況的計(jì)算溫度值，選用MIDAS/Gen和YJK兩種有限元分析軟件，分析結(jié)構(gòu)在四種工況下典型位置處的溫度變形特點(diǎn)和主要構(gòu)件的溫度內(nèi)力情況，并比較四種工況下的結(jié)構(gòu)溫度效應(yīng)的規(guī)律和大小。分析結(jié)果表明，日照作用對(duì)結(jié)構(gòu)變形影響最大，內(nèi)部空調(diào)作用影響次之，季節(jié)溫差及垂直溫度遞減的影響較?。蝗照兆饔檬菇Y(jié)構(gòu)向陽部分構(gòu)件產(chǎn)生較大的拉力，結(jié)構(gòu)加強(qiáng)層附近構(gòu)件溫度內(nèi)力會(huì)明顯增加；使用階段由于內(nèi)部空調(diào)作用的影響，內(nèi)部與外部的溫差會(huì)使外圍構(gòu)件產(chǎn)生一定的拉應(yīng)力。

［關(guān)鍵詞］千米級(jí)摩天大樓； 日照溫差； 季節(jié)溫差； 溫度變形；溫度內(nèi)力

中圖分類號(hào)：TU973-2+56， TU119+.22文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)03-0024-04

Research on the temperature effect on 1 000m-high skyscraper of CSCEC

Wu Di, Chen Yong, Chen Peng， Wu Yihong,  Gao Jian

(China Northeast Architectural Design & Research Institute Co.,  Ltd.,  Shenyang 110006, China)

Abstract:The temperature effects in construction stage and service stage of 1 000m-high skyscraper were calculated considering the sunlight temperature difference, seasonal temperature difference, effect of inside air-conditioner and effect of vertical lapse of temperature. The calculating temperature values under four temperature working conditions were proposed and two finite element analysis programs of MIDAS/Gen and YJK were used to analyze the temperature deformation characters and internal forces of main structural components in the specified location under four temperature working conditions, and the laws and quantity of structural temperature effects under four conditions were compared. The analysis results indicate that the sunshine action has the greatest impact on the deformation of structural components, while the effect of internal air-conditioner takes the second place, and seasonal temperature difference and the vertical lapse of temperature have least impact. Sunlight action creates large tensile force in the structural components at the place that is exposed to the sunlight. The temperature internal force in components in structural strengthening layers increases obviously. The temperature difference between the interior and outdoor environments creates certain tensile stress in outer frame components due to the use of internal air-conditioner in service stage.

Keywords:1 000m-high skyscraper; sunlight temperature difference; seasonal temperature difference; temperature deformation; temperature internal force

*中建股份科技研發(fā)課題(CSCEC-2010-Z-01-02)。

作者簡介：吳迪，碩士，工程師，Email：wudi209177@126.com。