双曲钛锌板屋面深化设计方法  

The Deepening Design Method of Titanium-zinc Hyperbolic Panel Roof

作　　者：汪永平 蒋鸿鹄 蒋洁菲 张骞[2] 蔡建国[2] WANG Yongping;JIANG Honghu;JIANG Jiefei;ZHANG Qian;CAI Jianguo(China State Railway Group Co.,Ltd.,Beijing 100844,China;National Prestress Engineering Research Center,Southeast University,Nanjing,Jiangsu 210096,China;China Railway Engineering Consulting Group Co.,Ltd.,Beijing 100055,China)

机构地区：[1]中国国家铁路集团有限公司,北京100844 [2]东南大学国家预应力工程技术研究中心,江苏南京210096 [3]中铁工程设计咨询集团有限公司,北京100055

出　　处：《施工技术》2020年第16期51-54,69,共5页Construction Technology

基　　金：中国铁路总公司科技研究开发计划课题(P2018G006)。

摘　　要：以太子城站双曲屋面深化设计为例,首先对双曲屋面进行几何分析,调整弧线设计使整体模型净空提高。使用Rhino+Grasshopper进行建模,采用纵向沿投影线均分、横向沿曲线均分的方法对屋面板进行划分,通过屋面板对角线差值分析屋面板的不规则程度,计算起翘值以分析"以直代曲"的合理性。分析表明:在双曲屋面中心处屋面板不规则程度更大;屋面底部边角处屋面板起翘值最大,整体屋面板起翘值均小于限值,外观符合设计要求。Taking the deepening design of the hyperbolic roof of Taizicheng Station as an example,the geometric analysis of the hyperbolic roof is first carried out,and the arc design is adjusted to improve the overall model clearance.Rhino+Grasshopper are used for modeling,and the roof panels are divided by the method of longitudinally equally dividing along the projection line and horizontally along the curve.The irregularity of the roof panels is analyzed by the diagonal difference of the roof panels,and the warping value is calculated to analyze the rationality of"straight lines instead of curves".The analysis results show that the roof panel is more irregular in the center of the model.And the roof panel at the bottom corner of the roof has the highest warpage value,and the warpage value of overall roof panel is less than the limit value,and the appearance meets the design requirements.

关 键 词：屋面 起翘值 有理化定位 放样 设计 

分 类 号：TU248.1[建筑科学—建筑设计及理论]