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(華東建筑設(shè)計(jì)研究院有限公司  上海 200002)
［提要］  “斜交網(wǎng)格” 體系由雙向交叉連續(xù)環(huán)繞建筑外表面的斜桿構(gòu)成，替代了傳統(tǒng)上的垂直柱與斜向支撐的組合，同時(shí)承受結(jié)構(gòu)的垂直和水平荷載。斜交網(wǎng)格的剛度較大，能承受很大的水平荷載，因而內(nèi)框架可能設(shè)計(jì)成無支撐抗彎剛架，為建筑內(nèi)部的布置提供很大的自由度。通過靜力、彈性反應(yīng)譜和靜力彈塑性等分析方法，對(duì)構(gòu)成這一結(jié)構(gòu)的基本元素——平面斜交網(wǎng)格、斜交網(wǎng)格筒體結(jié)構(gòu)和斜交網(wǎng)格外筒與各種內(nèi)核結(jié)構(gòu)的組合體系的基本靜動(dòng)力特性進(jìn)行了分析，并與傳統(tǒng)的結(jié)構(gòu)體系進(jìn)行了結(jié)果對(duì)比，歸納出這一結(jié)構(gòu)的基本受力性能，可為此類結(jié)構(gòu)的深入研究和設(shè)計(jì)實(shí)踐提供參考。
［關(guān)鍵詞］  高層斜交網(wǎng)格結(jié)構(gòu)  管結(jié)構(gòu)  靜力彈塑性分析
Performance Research on Highrise Diagonal Frame Structure/Zhou Jian, Wang Dasui(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)
Abstract:A new structural system for highrise building named diagonal frame is studied. The most significant characteristic of this system is the performance of its diagonal components arranged around the building, which act both as columns and bracings. The lateral stiffness provided by the these diagonal components leaves more freedoms for the design of the core structure. Static analysis, spectrum analysis and static elasticplastic analysis are used to explore the fundamental characteristics of this system from its basic element—2D diagonal frame to individual spacial diagonal frame tube, and finally the composite system of spacial diagonal frame tube with different types of core structures. Comparison and contrast are made with conventional structural systems in order to identify its special performances.
Keywords:highrise building diagonal frame; tube structure; static elasticplastic analysis