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（貴州大學(xué)空間結(jié)構(gòu)研究中心， 貴陽 550003）

［摘要］以某擬建工程為例，基于大型通用有限元軟件ANSYS建立真實(shí)模型，采用振型反應(yīng)譜分解法，研究了新型高層裝配式蜂窩型鋼網(wǎng)格盒式雙筒結(jié)構(gòu)的動(dòng)力特性與抗震性能，詳細(xì)分析了在地震作用下結(jié)構(gòu)的周期、層間位移和層間位移角等。研究結(jié)果表明：在多遇地震作用時(shí)，新型高層裝配式蜂窩型鋼網(wǎng)格盒式雙筒結(jié)構(gòu)的抗扭剛度較大，沿豎向剛度和質(zhì)量分布均勻，層間位移和層間位移角均滿足規(guī)范要求，結(jié)構(gòu)自身的動(dòng)力特性和抗震性能好；在結(jié)構(gòu)層高相同和用鋼量相近的情況下，與普通結(jié)構(gòu)相比，新型結(jié)構(gòu)可以節(jié)約19-97%的鋼筋混凝土用量，具有很好的應(yīng)用價(jià)值。

［關(guān)鍵詞］動(dòng)力特性； 抗震性能； 新型高層裝配式蜂窩型鋼網(wǎng)格盒式雙筒結(jié)構(gòu)； 振型反應(yīng)譜分解法

中圖分類號(hào)：TU391文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)14-0013-05

Dynamic characteristics and seismic performance analysis of a new type of high-rise fabricated honeycomb steel grid boxed double-tube structure

Xu Zengmao, Ma Kejian

(Space Structure Research Center, Guizhou University, Guiyang 550003, China)

Abstract:Taking a proposed project as an example, a finite element model was established based on the finite element software ANSYS, the dynamic characteristics and seismic performance of a new type of high-rise fabricated honeycomb steel grid boxed double-tube structure were studied by mode-superposition response spectrum method. The period, interlayer displacement and interlayer displacement angle of the structure under earthquake action were analyzed. The research results show that the new high-rise assembled honeycomb steel mesh box type double-tube structure has large torsional stiffness and uniform vertical stiffness and mass distribution, and the interlayer displacement and interlayer displacement angle can meet the requirement of specification, the dynamic characteristics and seismic performance of the structure are good. When the structural layer height is the same and the steel volume is similar, compared with the common structure, the new structure can  save 19-97% of the reinforced concrete dosage, which has a good application value.

Keywords:dynamic characteristic; seismic performance; new type of high-rise assembled honeycomb steel grid box double tube structure; mode-superposition response spectrum method

*“十二五”國(guó)家科技支撐計(jì)劃(2011BAJ09B01-01)，貴州省科技創(chuàng)新人才團(tuán)隊(duì)建設(shè)（［2014］4012），貴州大學(xué)研究生創(chuàng)新基金資助（研理工2017062）。

通訊作者：馬克儉，學(xué)士，教授，博士生導(dǎo)師，Email: makejian2002@163.com。