施工技术 2010年3月 106 CONSTRUCTION TECHNOLOGY 第39卷第3期 利用CAD三维技术辅助解决异形屋顶施工 李纲，娄秋阳，谷宏志，杨鹏，王琦 (天津市建工工程总承包有限公司，天津300384) [摘要]某工程屋顶结构由多坡屋面、4个角部各一个壳体塔楼及2个中部被台塔楼组成.由于空间结构复杂，无 法用二维设计图纸完整清晰地表达，给屋面结构施工带来很大困难.利用CAD三维辅助施工，完成了复杂建筑空 间形体的三维模型分析，较好地解决了空间曲线、曲面的定位、形体的生成、空间构件的调整等技术难点，与二维平 面图纸加实物模型相比较，达到了速度快、表达清晰准确，并可以多角度观察对象，预先发现构件不合理的情况，并 及时修改调整. [关键词]屋顶；异形结构；三维技术；CAD [中图分类号]TU717 [文献标识码]A[文章编号]1002-8498(2010)03-0106-04 Using CAD 3D Technique to Solve Special Shape Roof Construction Problems Li Gang Lou Qiuyang Gu Hongzhi Yang Peng Wang Qi Tianjin Construction Engineering Main Contracting Co.Lid.Tianjin 300384 China) Abstract:Some roof structure is posed of multi-alope roof four shell towers in each cormer and 2 prisms in middle part.Because of plex space structure the roof cann't be showed perfectly by 2D design draws which makes very much difficult for roof construction.By using CAD 3D technique 3D model analysis is pleted for plex roof structure some technique difficult is solved successfully such as location of space curves and arc surface body build and adjustment of space member etc. Comparing with 2D drawing and model 3D technique can view perfectly objects from many directions. When beforehand finding unreasonable members these members can be adjusted in time. Key words:roof;special shape structure;three dimension (3D)technique;CAD 1工程概况 2.1建立塔楼平面控制网 天津城投大厦建筑面积31458m2 为欧式建筑，地 4个壳体塔楼位置的确定关系着建筑物的整体形 下2层，地上6层.屋顶结构由多坡屋面、4个角部各象.首先根据本层的内控点初步确定壳体塔楼的位 一个壳体塔楼及2个中部棱台塔楼组成（见图1），为置，4个塔楼呈矩形布置...
利用CAD三维技术辅助解决异形屋顶施工.pdf
