（哈尔滨工业大学土木工程学院，150090）

［提要］选用40，50，60和80m跨度的K6型弦支穹顶结构，利用大型有限元分析软件ANSYS，对结构的受力性能及结构参数如矢跨比、撑杆高度、环索布置方式、初始预应力大小等对其的影响进行了分析。研究结果表明，在上层网壳杆件压力满足要求的前提下，矢跨比宜为1/8～1/6，撑杆高度为2.5～3.0m，采用四环索布置且索的预拉力宜在200～300MPa之间。可对弦支穹顶结构静力性能分析以及更多的工程设计实践提供参考。

［关键词］弦支穹顶；静力性能分析；参数分析

Static Analysis of K6 Suspendome Structure/Yao Shu, Fan Feng(College of Civil Engineering, Harbin Institute of Technology, Harbin 150090,China)

Abstract:Suspen-dome is a reasonable and novel type of long-span hybrid spatial structures based upon the singlelayer spherical lattice shell and the tensegrity system. The structural behavior of suspend-dome and structural parameters such as rise-span ratio, heights of struts, the number of cable rings and prestresses of cables have been analyzed by employing a computational model of the Kiewitt suspend-dome of 40m,50m,60m and 80m span and using the ANSYS software. Some valuable conclusions are drawn for the mechanics property analysis and practical design.

Keywords:suspen-domes; static behavior analysis; parameters analysis