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超高層鋼筋混凝土空間網(wǎng)格盒式成束筒結(jié)構(gòu)性能分析*
陳佳琪,馬克儉,申波
摘 要

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

 

[摘要]簡(jiǎn)要介紹了鋼筋混凝土空間網(wǎng)格盒式成束筒新型結(jié)構(gòu)。以某擬建工程為例,對(duì)比分析了該新型結(jié)構(gòu)和常規(guī)框筒結(jié)構(gòu)的周期、樓層位移和框架柱與核心筒的剪力分配等參數(shù)。結(jié)果表明,該新型結(jié)構(gòu)在力學(xué)性能和抗震性能上優(yōu)于常規(guī)框筒結(jié)構(gòu)。采用MIDAS/Gen軟件對(duì)該新型結(jié)構(gòu)進(jìn)行靜力彈塑性分析,得到該結(jié)構(gòu)性能點(diǎn)狀態(tài)下的變形、基底剪力、層間位移角曲線和塑性鉸分布;由此總結(jié)了該結(jié)構(gòu)塑性鉸的發(fā)展?fàn)顟B(tài)及構(gòu)件屈服順序。結(jié)果表明,該結(jié)構(gòu)具有很好的延性,能夠滿足“大震不倒”的抗震設(shè)防要求。

 

[關(guān)鍵詞]網(wǎng)格盒式成束筒; 抗震性能; 靜力彈塑性分析

 

中圖分類號(hào):TU973.2      文獻(xiàn)標(biāo)識(shí)碼:A      文章編號(hào):1002-848X(2015)07-0012-05

 

Performance analysis of super highrise RC spatial grid cassette bundled tube structure

Chen Jiaqi, Ma Kejian, Shen Bo

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

 

Abstract:A new structure called RC spatial grid cassette bundled tube structure was briefly described. The period, story displacement and shear force distribution between frame columns and corewall of the new structure were analyzed and compared with the conventional framecorewall structure based on a proposed project. The results show that mechanical properties and seismic performance of the new structure are better than those of conventional framecorewall structure. Pushover analysis of the new structure was also carried out with MIDAS/Gen software to obtain the deformation, base shear force, interlayer displacement angle curve and the plastic hinge distribution under performance point state, and the plastic hinge development state and component yielding sequence of the structural system were summarized. The results show that the new structure has good ductility and can fulfill the seismic precautionary requirements of not collapse under the rare earthquake.

Keywords:grid cassette bundled tube; seismic performance; Pushover analysis

 

*貴州省協(xié)同創(chuàng)新中心建設(shè)項(xiàng)目(黔教合協(xié)同創(chuàng)新字 2013709),貴州大學(xué)研究生創(chuàng)新基金資助(校研理工2014039)。

 

作者簡(jiǎn)介:陳佳琪,碩士研究生,Emailchenjiaqi.417@163.com。

 

                            參考文獻(xiàn)

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2]王其明,馬克儉,陳志華,等. 鋼筋混凝土密肋網(wǎng)格式框架核心筒結(jié)構(gòu)體系性能分析[J. 建筑結(jié)構(gòu),2013,43(7)3437.

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