- 摘 要
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（中國建筑東北設(shè)計(jì)研究院有限公司， 沈陽 110006）
［摘要］沈陽新年代綜合項(xiàng)目建筑設(shè)計(jì)高度為111-95m，該建筑獨(dú)特的造型——雙塔、多處大懸挑及L形高位連體，即在19～21層雙塔懸挑相連，增加了結(jié)構(gòu)設(shè)計(jì)的復(fù)雜程度，且由于各塔樓之間的振動互相耦聯(lián)，對結(jié)構(gòu)抵抗扭轉(zhuǎn)愈加不利。對這個多重復(fù)雜的超限建筑在設(shè)計(jì)中采用了基于性能的抗震設(shè)計(jì)思想，針對重要部位提高性能指標(biāo)。按照規(guī)范的要求采用Perform-3D進(jìn)行彈塑性分析，研究整體結(jié)構(gòu)在大震作用下的動力響應(yīng)和關(guān)鍵構(gòu)件的損傷發(fā)展情況，結(jié)果表明，結(jié)構(gòu)具有較高的抗震承載能力和延性，滿足規(guī)范“大震不倒”的要求。
［關(guān)鍵詞］連體結(jié)構(gòu)； 懸挑結(jié)構(gòu)； 勁性鋼骨； 性能化抗震設(shè)計(jì)
中圖分類號：TU318文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)03-0050-07
Design of transfinite structure for New Era comprehensive building in Shenyang
Zhao Yang, Sun Kexue, Liu Chao
(China Northeast Architectural Design & Research Institute Co., Ltd., Shenyang 110006, China)
Abstract:The New Era comprehensive building in Shenyang with the height of 111-95m has double towers, which are connected together from 19th floor to 21th floor. Hence, the structure is unique and complicated as it includes double towers, large cantilever, and L-shaped connected structure. As the vibration of these double towers affects each other, it was not good for the structure to resist torsion. For the design of this multiple, complicated, and transfinite building, the method of a performance-based seismic design was utilized, and the index performance for the important specimens of the structure was improved. The Perform-3D software was utilized to conduct elastic-plastic analysis according to the requirement of the specifications. The dynamic response and damage evolution of important specimens under rare seismic were investigated. The results show the structure has good ductility and high resistance to earthquakes, and it meets the requirements of no collapsing under strong earthquake.
Keywords:connected structure; cantilevered structure; steel reinforced; performance-based seismic design
*中建股份科技研發(fā)課題(CSCEC-2013-Z-23)。
作者簡介：趙陽，教授級高級工程師，一級注冊結(jié)構(gòu)工程師，Email：xioaniaodby@126.com。
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