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(哈爾濱工業(yè)大學(xué)土木工程學(xué)院  150090)
【提要】  采用隨機(jī)模擬時(shí)程分析方法，對(duì)Kiewitt66型單層球面網(wǎng)殼結(jié)構(gòu)的風(fēng)振性能進(jìn)行了系統(tǒng)的參數(shù)分析，考察了幾何、氣動(dòng)、結(jié)構(gòu)等參數(shù)變化對(duì)結(jié)構(gòu)風(fēng)振響應(yīng)規(guī)律的影響。通過對(duì)計(jì)算結(jié)果的進(jìn)一步統(tǒng)計(jì)處理，給出了可供該類結(jié)構(gòu)抗風(fēng)設(shè)計(jì)參考的風(fēng)振系數(shù)擬合公式。研究結(jié)果表
明，該類結(jié)構(gòu)的風(fēng)振響應(yīng)規(guī)律性較好，風(fēng)振系數(shù)取值為3.0左右。
【關(guān)鍵詞】  網(wǎng)殼結(jié)構(gòu)  風(fēng)振響應(yīng)  隨機(jī)模擬時(shí)程分析  風(fēng)振系數(shù)
Study on Windinduced Vibration of Singlelayer Spherical Reticulated Shell Structures/Zhang Jiansheng,Wu Yue,Shen Shizhao(Harbin Institute of Technology,Harbin 150090,China)
Abstract:Systematic parameter analysis of windinduced response of Kiewitt66 type singlelayer spherical reticulate shells structures has been performed using random simulation method in time domain.The effects of geometric parameters，structural parameters and aerodynamic parameters on windinduced response are generalized.Moreover,a linear regression expression of the windinduced vibration coefficient is obtained,which can be used for the reference of the windresistance design of reticulated shell structures.In the end,the windinduced vibration coefficient is approximately 30 as result.
Keywords:reticulated shell structures；windinduced response；random simulation;time domain；vibration coefficient
*國家自然科學(xué)基金重點(diǎn)項(xiàng)目(50078018)資助。