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（西安建筑科技大學(xué)土木工程學(xué)院， 西安 710055）
［摘要］為掌握斜交網(wǎng)格筒與混凝土核心筒協(xié)同工作的受力性能，采用PERFORM-3D軟件對10個不同結(jié)構(gòu)特性的高層斜交網(wǎng)格-RC核心筒結(jié)構(gòu)模型進行了靜力彈塑性分析?？偨Y(jié)了此類結(jié)構(gòu)受力和塑性發(fā)展過程、變形能力及其影響因素，并從內(nèi)外筒抗側(cè)剛度的發(fā)展過程以及剪力分配規(guī)律等方面闡述了這類結(jié)構(gòu)體系內(nèi)外筒協(xié)同工作時的受力性能，給出了斜交網(wǎng)格外筒層剪力沿高度分布規(guī)律；明確了斜交網(wǎng)格筒的屈服路徑以及斜柱傳力過程。研究表明：此類結(jié)構(gòu)體系關(guān)鍵構(gòu)件的屈服順序為：連梁、斜柱、剪力墻墻肢；結(jié)構(gòu)抗側(cè)剛度發(fā)展過程可分為兩大階段，剪力分配過程分為三大階段；結(jié)構(gòu)體系的整體變形模式呈彎剪型且空間協(xié)同工作性能較好，剪力滯后效應(yīng)較小。
［關(guān)鍵詞］斜交網(wǎng)格-RC核心筒結(jié)構(gòu)； 靜力彈塑性分析； 協(xié)同工作性能； 剪力重分布； 抗震性能
中圖分類號：TU352-1文獻標識碼：A文章編號：1002-848X(2019)03-0001-08
Study on cooperative working performance of high-rise oblique grid and RC corewall structure
Shi Qingxuan, Wu Chaofeng, Wang Feng, Wang Peng
(School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China)
Abstract:Based on the PERFORM-3D software, static elastic-plastic analysis was conducted on 10 oblique grid and RC corewall structure models with different structural characteristics to understand the cooperative working performance between oblique grid and RC corewall structures. The structural plastic development process, load-deformation ability and deformation capacity as well as related influential factors were summarized. The cooperative working performance between oblique grid and RC corewall structures was explained by analyzing the development process of lateral stiffness and the shear force distribution of the outer oblique grid structure and inner RC corewall structure. The distribution of shear force of outer oblique grid tube along the height was given. The yield path and the force transmission process of outer oblique grid tube were determined. The results show that the yield orders of key components in this structural system are coupling beams, inclined columns and shear walls. The development process of lateral stiffness can be divided into two stages and the shear force distribution process can be divided into three stages. The overall deformation mode of the structural system is bending-shear type, and the spatial cooperative working performance is good, and the shear lag effect is small.
Keywords:oblique grid and RC corewall structure; static elastic-plastic analysis; cooperative working performance; shear force redistribution; seismic behavior
*國家自然科學(xué)基金資助項目（51478382）。
作者簡介：史慶軒，博士，教授，博士生導(dǎo)師，Email:qingxuanshi@sina.com。
