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（哈爾濱工業(yè)大學(xué)土木工程學(xué)院，150090）

［提要］選用40，50，60和80m跨度的K6型弦支穹頂結(jié)構(gòu)，利用大型有限元分析軟件ANSYS，對(duì)結(jié)構(gòu)的受力性能及結(jié)構(gòu)參數(shù)如矢跨比、撐桿高度、環(huán)索布置方式、初始預(yù)應(yīng)力大小等對(duì)其的影響進(jìn)行了分析。研究結(jié)果表明，在上層網(wǎng)殼桿件壓力滿足要求的前提下，矢跨比宜為1/8～1/6，撐桿高度為2.5～3.0m，采用四環(huán)索布置且索的預(yù)拉力宜在200～300MPa之間?？蓪?duì)弦支穹頂結(jié)構(gòu)靜力性能分析以及更多的工程設(shè)計(jì)實(shí)踐提供參考。

［關(guān)鍵詞］弦支穹頂；靜力性能分析；參數(shù)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