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(1 華東建筑設(shè)計研究院有限公司, 上海 200011;2 上海裝配式建筑技術(shù)集成工程技術(shù)研究中心, 上海 200011)
摘要: 以足尺低層雙面疊合夾心保溫剪力墻試驗樓為研究對象,基于 ABAQUS 研究雙面疊合夾心保溫剪力墻結(jié)構(gòu)的數(shù)值模擬方法,并建立有限元模型,通過對比計算自振頻率和實測自振頻率驗證數(shù)值模擬方法的可行性。 另外,建立有、無外葉墻模型,分別進行模態(tài)分析和推覆分析,研究外葉墻對雙面疊合夾心保溫剪力墻結(jié)構(gòu)動力特性、抗側(cè)剛度和抗震承載力影響,結(jié)果表明,外葉墻和桁架筋連接件對結(jié)構(gòu)動力特性影響有限,可提高結(jié)構(gòu)抗震承載力;對有、無外葉墻模型分別進行彈性時程分析,結(jié)果表明,兩個模型的基底剪力最大差值為 9. 4%,有外葉墻模型基底剪力不一定比無外葉墻模型大。 綜上分析,建議低層雙面疊合夾心保溫剪力墻結(jié)構(gòu)進行抗震設(shè)計時,可簡化為無外葉墻結(jié)構(gòu)進行地震內(nèi)力計算。
關(guān)鍵詞: 雙面疊合夾心保溫剪力墻結(jié)構(gòu); 數(shù)值模擬方法; 推覆分析; 抗震設(shè)計方法
中圖分類號:TU375,TU317+. 1 文獻標志碼:A 文章編號:1002-848X(2022)23-0014-05DOI:10. 19701 / j. jzjg. HJZL2203
Research on seismic design numerical simulation method of low-rise double-faced superimposed sandwich insulation shear wall structure
WU Xueshu1,2, WANG Pingshan1,2, ZONG Bin1,2, LI Jinjun1,2
(1 East China Architectural Design and Research Institute Co. , Ltd. , Shanghai 200011, China; 2 Shanghai EngineeringResearch Center of Assembly Building Technology Integration, Shanghai 200011, China)
Abstract: Taking the full-scale low-rise double-faced superimposed sandwich insulation shear wall test building as theresearch object, the numerical simulation method of double-faced superimposed sandwich insulation shear wall structure wasstudied based on ABAQUS, and the finite element model was established. The numerical simulation method was verified tobe feasible by comparing the calculated natural frequency with the measured natural frequency. The model with and withoutouter prefabricated wall was established. Modal analysis and pushover calculation were carried out respectively. Theinfluence of outer prefabricated wall on the dynamic characteristics, lateral stiffness and seismic bearing capacity ofdouble-faced superimposed sandwich insulation shear wall structure was studied. The results show that the outerprefabricated wall and truss reinforcement connectors have limited influence on the dynamic characteristics of the structure andcan improve the seismic bearing capacity of the structure. The elastic time history analysis was carried out for the model withand without outer prefabricated wall respectively. The results show that the maximum difference percentage of the base shearof the two models is 9. 4%. The base shear of the model with outer prefabricated wall is not necessarily greater than that of themodel without outer prefabricated wall. So, it is suggested that the low-rise double-faced superimposed sandwich insulationshear wall structure can be simplified as a structure without outer prefabricated wall for seismic internal force calculation.
Keywords:double-faced superimposed sandwich insulation shear wall structure; numerical simulation method; pushoveranalysis; seismic design method
∗國家重點研發(fā)計劃資助(2018YFD1100903)。
第一作者:吳學淑,博士,高級工程師,一級注冊結(jié)構(gòu)工程師,主要從事裝配式結(jié)構(gòu)研究,Email:xueshu_wu@ 163. com。
[引用本文] 吳學淑,王平山,縱斌,等. 低層雙面疊合夾心保溫剪力墻結(jié)構(gòu)抗震設(shè)計數(shù)值模擬方法研究[ J]. 建筑結(jié)構(gòu), 2022, 52 ( 23): 14-18, 119. WU Xueshu, WANG Pingshan, ZONG Bin, et al. Research on seismic designnumerical simulation method of low-rise double-faced superimposed sandwich insulation shear wall structure[ J]. BuildingStructure,2022,52(23):14-18,119.
