(中国建筑东北设计研究院有限公司， 沈阳 110006)

［摘要］计算了中国建筑千米级摩天大楼在施工阶段和使用阶段的温度作用效应，考虑日照温差、季节温差、内部空调作用及垂直温度递减影响，给出四种温度作用工况的计算温度值，选用MIDAS/Gen和YJK两种有限元分析软件，分析结构在四种工况下典型位置处的温度变形特点和主要构件的温度内力情况，并比较四种工况下的结构温度效应的规律和大小。分析结果表明，日照作用对结构变形影响最大，内部空调作用影响次之，季节温差及垂直温度递减的影响较小；日照作用使结构向阳部分构件产生较大的拉力，结构加强层附近构件温度内力会明显增加；使用阶段由于内部空调作用的影响，内部与外部的温差会使外围构件产生一定的拉应力。

［关键词］千米级摩天大楼； 日照温差； 季节温差； 温度变形；温度内力

中图分类号：TU973-2+56， TU119+.22文献标识码：A文章编号：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

*中建股份科技研发课题(CSCEC-2010-Z-01-02)。

作者简介：吴迪，硕士，工程师，Email：wudi209177@126.com。