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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: 基于足尺模型振動臺試驗,對低層雙面疊合夾心保溫剪力墻結(jié)構(gòu)進行動力彈塑性分析,并對數(shù)值計算結(jié)果和振動臺試驗結(jié)果進行對比,結(jié)果表明,有限元計算的結(jié)構(gòu)響應(yīng)及構(gòu)件損傷情況基本和振動臺試驗結(jié)果相吻合,7度罕遇地震時該結(jié)構(gòu)基本處于彈性狀態(tài),8 度罕遇地震時構(gòu)件損傷發(fā)展,9 度罕遇地震時結(jié)構(gòu)進入彈塑性狀態(tài),但變形滿足大震不倒的要求。 對有外葉墻模型和無外葉墻模型的動力彈塑性計算結(jié)果進行對比,隨著輸入地震波峰值加速度增大,兩者結(jié)構(gòu)響應(yīng)發(fā)展趨勢基本一致,無外葉墻模型的結(jié)構(gòu)位移響應(yīng)略大于有外葉墻模型,兩者構(gòu)件損傷位置和損傷發(fā)展趨勢基本一致,無外葉墻模型墻體損傷程度略大。 分析結(jié)果表明,在結(jié)構(gòu)彈塑性狀態(tài)下,外葉墻和桁架筋對結(jié)構(gòu)抗震能力具有一定貢獻,降低結(jié)構(gòu)在地震作用下的損傷。
關(guān)鍵詞: 雙面疊合夾心保溫剪力墻結(jié)構(gòu); 有外葉墻模型; 無外葉墻模型; 罕遇地震; 動力彈塑性分析
中圖分類號:TU375 ,TU317+. 1 文獻標志碼:A 文章編號:1002-848X(2022)23-0019-07
DOI:10. 19701 / j. jzjg. HJZL2204
Study on dynamic elasto-plastic analysis of low-rise double-faced superimposed sandwich insulation shear wall structure
WU Xueshu1,2, LI Jinjun1,2, WANG Pingshan1,2, ZONG Bin1,2
(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: Based on the full-scale shaking table test, the dynamic elasto-plastic analysis of the low-rise double-facedsuperimposed sandwich insulation shear wall structure was carried out, and the numerical calculation results with theshaking table test results were compared. The results show that the structural response and damage calculated by finiteelement analysis are almost consistent with the results of the shaking table test. The structure is basically in an elastic stateduring the 7 degree rare earthquake, the component damage develops during the 8 degree rare earthquake, and the structureenters an elastic-plastic state during the 9 degree rare earthquake, but it’ s deformations meet the requirements of nocollapse under rare earthquake. The dynamic elastic-plastic calculation results of the model with and without outerprefabricated wall were compared. With the increase of the peak acceleration of the input seismic wave, the developmenttrend of the structural response of the two models is basically consistent. The displacement response of the model withoutouter prefabricated wall is slightly greater than that of the model with outer prefabricated wall. The damage location anddamage development trend of the two models are basically consistent, and the damage degree of the model without outerprefabricated wall is slightly greater. The analysis results show that under the elastic-plastic state of the structure, the outerprefabricated wall and truss reinforcement connectors have contribution to the seismic capacity of the structure and reducesthe damage of the structure under seismic load.
Keywords:low-rise double-faced superimposed sandwich insulation shear wall structure;model with prefabricated wall;model without prefabricated wall; rare earthquake dynamic elasto-plastic analysis
∗國家重點研發(fā)計劃資助(2018YFD1100903)。
第一作者:吳學(xué)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(xué)淑,李進軍,王平山,等. 低層雙面疊合夾心保溫剪力墻結(jié)構(gòu)動力彈塑性分析研究[ J] . 建筑結(jié)構(gòu),2022,52( 23) :19-25. WU Xueshu,LI Jinjun,WANG Pingshan,et al. Study on dynamic elasto-plastic analysis oflow-rise double-faced superimposed sandwich insulation shear wall structure [ J] . Building Structure, 2022, 52 ( 23) :19-25.
