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(1 廣州大學(xué)土木工程學(xué)院, 廣州 510006; 2 佛山市嶺南建筑設(shè)計(jì)咨詢有限公司, 佛山 528200;3 華南理工大學(xué)土木與交通學(xué)院, 廣州 510641; 4 亞熱帶建筑科學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室, 廣州 510640)
[摘要]基于11個(gè)高強(qiáng)混凝土鋼板剪力墻模型試驗(yàn),采用有限元軟件PERFORM-3D完成了不同設(shè)計(jì)參數(shù)的試件在低周反復(fù)荷載作用下的模擬分析,對(duì)比了抗剪承載力、剛度、滯回性能等參數(shù),驗(yàn)證有限元模型的合理性,確定整體結(jié)構(gòu)中剪力墻模型參數(shù)。采用非線性時(shí)程分析,對(duì)比研究帶高性能剪力墻的超高層框架-核心筒結(jié)構(gòu)與帶普通鋼筋混凝土剪力墻的超高層框架-核心筒結(jié)構(gòu)整體地震響應(yīng)和剪力墻材料損傷等差異。分析結(jié)果表明:帶高強(qiáng)混凝土鋼板剪力墻的超高層框架-核心筒結(jié)構(gòu)底部剪力墻的損傷程度和范圍明顯減小,其底部剪力墻混凝土最大壓應(yīng)變與原結(jié)構(gòu)相比最大可減小42-9%,鋼板最大拉應(yīng)變與原結(jié)構(gòu)相比最大可減小64-9%。構(gòu)件試驗(yàn)與整體結(jié)構(gòu)分析均證明高強(qiáng)混凝土鋼板剪力墻結(jié)構(gòu)抗震性能優(yōu)越,結(jié)構(gòu)底部剪力墻損傷得到有效控制。
[關(guān)鍵詞]C80高強(qiáng)混凝土鋼板剪力墻; 性能水準(zhǔn); 損傷評(píng)估; 損傷控制
中圖分類號(hào):TU352-1文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2019)08-0009-07
Study on seismic performances of super high-rise frame-corewall structure with high strength concrete composite steel plate shear walls
Wu Yi1, Lin Zhufan2, Yang Chun3,4, Mo Zhenming1
(1 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China; 2 Foshan Lingnan Architectural Design Consulting Co., Ltd., Foshan 528200, China; 3 School of Civil Engineering & Transportation, South China University of Technology, Guangzhou 510641, China; 4 State Key Laboratory of Subtropical Building Science, Guangzhou 510640, China)
Abstract:Based on 11 model tests of C80 high-strength concrete (HSC) composite steel plate shear walls, finite element software PERFORM-3D was used to simulate seismic performances of the specimens with different parameters under low cyclic loading, and shear capacity, stiffness and hysteretic behavior were compared to verify the rationality of the finite element model and determine parameters of shear walls used in simulation of the overall structure. Then nonlinear seismic time-history analysis was used to study the differences of seismic responses and damages of shear wall material between super high-rise frame-corewall structure with high strength concrete composite steel plate shear walls and super high-rise frame-corewall structure with ordinary reinforced concrete shear walls. Results show that the damage degree and range of bottom shear walls of C80 HSC steel plate shear wall of super high-rise frame-corewall structure with high strength concrete composite steel plate shear walls are significantly reduced. The maximum compressive strain of bottom shear wall concrete can be reduced by 45-2% compared with the original structure. The maximum tensile strain of the steel plate can be reduced by 65% compared with the original structure. Component test and seismic analysis of the whole structure have proved that high strength concrete composite steel plate shear wall structure has advanced seismic performances, and damage of bottom shear wall can be effectively controlled.
Keywords:C80 high-strength concrete composite steel plate shear wall; performance level; damage performance evaluation; damage control
*國(guó)家自然科學(xué)基金青年科學(xué)基金(51108104),廣東省自然科學(xué)基金(S2012010010074),市屬高校“羊城學(xué)者”(12A001D),省科技計(jì)劃項(xiàng)目(2013B020200016),亞熱帶建筑科學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室開放基金(2019ZB21)科研項(xiàng)目及國(guó)家留學(xué)基金委資助。
作者簡(jiǎn)介:吳軼,博士,教授,Email:cv-wuyi@gzhu.edu.cn。
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