884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(1 浙江省建筑設(shè)計(jì)研究院, 杭州 310006; 2 浙大城市學(xué)院土木工程系, 杭州 310015)

摘要: 鋼管混凝土斜交網(wǎng)格外筒-RC 核心筒體系不僅實(shí)現(xiàn)了與建筑立面設(shè)計(jì)的高度統(tǒng)一,同時(shí)提供了較大的抗側(cè)剛度,在超高層建筑設(shè)計(jì)中應(yīng)用日益廣泛。 基于某工程實(shí)例、合理的材料本構(gòu)和單元選擇,利用 ABAQUS 軟件建立該體系的有限元模型,進(jìn)行罕遇地震作用下的彈塑性時(shí)程分析,獲得了結(jié)構(gòu)基底剪力、頂部位移等結(jié)構(gòu)整體響應(yīng)時(shí)程曲線和構(gòu)件受力情況。 通過分析內(nèi)外筒基底剪力時(shí)程曲線討論結(jié)構(gòu)協(xié)同作用機(jī)制,結(jié)合構(gòu)件受力情況討論結(jié)構(gòu)關(guān)鍵構(gòu)件屈服順序與外筒斜交構(gòu)件的屈服路徑。 結(jié)果表明,該體系內(nèi)筒與外筒共同承擔(dān)基底剪力,整體呈現(xiàn)筒中筒結(jié)構(gòu)體系的受力特征;構(gòu)件屈服順序?yàn)榛炷梁诵耐策B梁、斜交網(wǎng)格外筒斜柱、混凝土核心筒墻肢;外筒構(gòu)件的屈服順序呈現(xiàn)由結(jié)構(gòu)底部至頂部、由角部至中央的發(fā)展模式,體現(xiàn)了斜交網(wǎng)格空間三維體系的受力優(yōu)點(diǎn)。

關(guān)鍵詞: 鋼管混凝土; 斜交網(wǎng)格; 彈塑性時(shí)程分析; 協(xié)同作用; 屈服路徑

中圖分類號(hào):TU398. 7 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2022)15-0070-05

DOI:10. 19701 / j. jzjg. ZIAD2206

Elastoplastic behavior analysis on concrete filled exterior steel tube diagrid-RC core wallstructure system under rare earthquake

QU Haochuan1, YANG Xuelin1, FENG Yongwei1, ZHANG Chensheng1, WANG Zhen1,2

(1 Zhejiang Province Institute of Architectural Design and Research, Hangzhou 310006, China;2 Department of Civil Engineering, Zhejiang University City College, Hangzhou 310015, China)

Abstract: Concrete filled exterior steel tube diagrid-RC core wall system not only achieves a high degree of unity with thebuilding facade design, but also provides large lateral stiffness, and is increasingly used in the design of super high-risebuildings. Based on an engineering example, reasonable material constitutive and element selection, the finite elementmodel of the system was established by ABAQUS software, and the elastoplastic time history analysis under the action ofrare earthquake was carried out, and the overall response time-history curve of the structure and the stress of the memberssuch as the base shear force of the structure and the displacement at the top was obtained. The synergistic mechanism of thestructure was discussed by analyzing the time-history curves of the base shear force of the inner and outer tubes, and theyield sequence of the key structural members and the yield path of the oblique members of the outer tube were discussed incombination with the stress conditions of the members. The results show that the inner tube and the outer tube share thebase shear force which presents the mechanical characteristics of the tube-in-tube structure system. The yield sequency ofmembers is coupling beam of the concrete core tube, the inclined column of the outer tube of the diagrid, the wall pier ofthe concrete core tube. The yield sequency of the outer tube member presents the development mode of the bottom to topand corner to center which reflects the mechanical advantages of the three-dimensional system in the diagrid.

Keywords:concrete filled steel tube; diagrid; elastoplastic time history analysis; synergetic effect; yield path

∗浙江省重點(diǎn)研發(fā)資助項(xiàng)目 ( 2018C03033-1) ,浙 江 省 教 育 廳 科 研 項(xiàng) 目 資 助 ( Y202146072) ,浙 江 省 基 礎(chǔ) 公 益 研 究 計(jì) 劃 項(xiàng) 目( LGG22E080005) 。

第一作者:瞿浩川,碩士,工程師,主要從事結(jié)構(gòu)動(dòng)力彈塑性行為的研究,Email:quhaochuan@ ziad. cn。

[引用本文] 瞿浩川,楊學(xué)林,馮永偉,等. 鋼管混凝土斜交網(wǎng)格外筒-RC 核心筒結(jié)構(gòu)體系在罕遇地震作用下的彈塑性行為研究[ J] . 建筑結(jié)構(gòu),2022,52( 15) :70-74. QU Haochuan,YANG Xuelin,FENG Yongwei,et al. Elastoplasticbehavior analysis on concrete filled exterior steel tube diagrid-RC core wall structure system under rare earthquake [ J] .Building Structure,2022,52(15) :70-74.