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（西北工業(yè)大學(xué)力學(xué)與土木建筑學(xué)院， 西安 710129）

［摘要］提出了一種新型吊桿連接方式的剛柔懸掛結(jié)構(gòu)。建立結(jié)構(gòu)的三維有限元模型，進(jìn)行模態(tài)分析。在考慮材料非線性的基礎(chǔ)上，分別進(jìn)行了多遇地震作用下的彈性時(shí)程分析和罕遇地震作用下的彈塑性時(shí)程分析，得到結(jié)構(gòu)的地震響應(yīng)，并且與現(xiàn)有吊桿連接方式的結(jié)構(gòu)進(jìn)行了比較。結(jié)果表明，相對(duì)于現(xiàn)有吊桿連接方式的結(jié)構(gòu)體系，這種新結(jié)構(gòu)體系在多遇地震和罕遇地震作用下均能夠更好地降低主體結(jié)構(gòu)的地震響應(yīng)，具有更好的抗震性能。

［關(guān)鍵詞］剛-柔懸掛結(jié)構(gòu); 非線性; 時(shí)程分析; 抗震性能

中圖分類號(hào)：TU351       文獻(xiàn)標(biāo)識(shí)碼：A       文章編號(hào)：1002-848X(2014)12-0039-05

Study on dynamic performance of the rigid-flexible suspension structure

Fang Zhao, Liu Hongbing, Liu Yang

 (School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University,  Xi′an 710129, China)

Abstract: A rigid-flexible suspension structure with a new connection type of suspenders was put forward. The three-dimensional finite element model of this structure was established and the model analysis was conducted. Based on the consideration of the material nonlinearity, the elastic time-history analysis of the model under the frequent earthquake and the elastic-plastic time-history analysis of the model under the rare earthquake were conducted. The dynamic performance of the structure was obtained and it was compared with that of structures with current connection type of suspenders. The result shows that compared with structural system with current connection type of suspenders, the new structural system can reduce seismic response of the major structure under both the frequent earthquake and the rare earthquake and it has better seismic performance.

Keywords: rigid-flexible suspension structure; nonlinearity; time-history analysis; seismic performance

作者簡(jiǎn)介：方釗，碩士研究生，Email:phoenix.fang@163.com。

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