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(1 青島騰遠設(shè)計事務(wù)所有限公司， 青島 266100；2 中國建筑科學研究院有限公司， 北京 100013)
［摘要］ 日照海韻廣場1#塔樓采用圓鋼管混凝土框架柱-鋼梁+鋼筋混凝土核心筒+帶伸臂桁架加強層的結(jié)構(gòu)體系。首先將塔樓的ETABS模型轉(zhuǎn)為SAP2000模型，再將SAP2000模型導出的數(shù)據(jù)庫轉(zhuǎn)換為ABAQUS整體結(jié)構(gòu)模型。模態(tài)分析結(jié)果表明SAP2000與ABAQUS結(jié)果基本一致?？紤]2組天然波和1組人工波在7度罕遇地震作用下6個工況，分析結(jié)構(gòu)的彈性和彈塑性時程反應(yīng)。分析結(jié)果表明：考慮材料的彈塑性，結(jié)構(gòu)最大層間位移角滿足1/100的限值要求，連梁出現(xiàn)了不同程度的損傷，大部分剪力墻未出現(xiàn)損傷，僅頂部幾層出現(xiàn)了受壓損傷，損傷因子未超過0.3；圓鋼管混凝土框架柱內(nèi)的型鋼未出現(xiàn)塑性應(yīng)變，環(huán)帶桁架鋼材也未出現(xiàn)塑性應(yīng)變，僅伸臂桁架伸入剪力墻部分出現(xiàn)了較小的塑性應(yīng)變。同時，采用SAUSAGE進行了動力彈塑性分析，并將其結(jié)果與ABAQUS的結(jié)果進行比較。結(jié)果表明兩者在變形、內(nèi)力和損傷情況均較為接近，說明彈塑性模型能夠準確真實地反映出結(jié)構(gòu)的動力響應(yīng)。
［關(guān)鍵詞］日照海韻廣場；超高層建筑；混合結(jié)構(gòu)；彈塑性時程分析；動力響應(yīng)
中圖分類號：TU443 文獻標識碼：A文章編號：1002-848X(2021)22-0026-06
Dynamic elasto-plastic analysis of tower 1# structure for Rizhao Haiyun Plaza
WANG Yang1, JING Yanqing1, LI Jianfeng1, CHEN Caihua2, LIU Yuchen1, XUE Mingyu1, PAN Yuhua2, HU Haitao1
(1 Qingdao Tengyuan Design Institute Co., Ltd., Qingdao 266100， China；2 China Academy of Building Research, Beijing 100013，China)
Abstract: Tower 1# for Rizhao Haiyun Plaza adopts a structural system of round steel tube concrete frame column-steel beam+reinforced concrete core tube+reinforced layer with outrigger truss. First, the ETABS model of the tower was converted to the SAP2000 model, and then the database derived from the SAP2000 model was converted to the ABAQUS overall structure model. The modal analysis results show that the results of SAP2000 and ABAQUS are basically the same. Considering 6 working conditions of 2 groups of natural waves and 1 group of artificial waves under the action of a 7 degree rare earthquake, the elastic and elastoplastic time history response of the structure were analyzed. The analysis results show that considering the elasto-plasticity of the material, the maximum interlayer displacement angle of the structure meets the limit of 1/100, the connecting beams have been damaged to different degrees, most of the shear walls have not been damaged, only the top layers have been damaged under compression, and the damage factor does not exceed 0.3. There was no plastic strain in the section steel in the concrete-filled steel tube frame column, and no plastic strain in the ring-belt truss steel. Only the outrigger truss extended into the shear wall shows a small plastic strain. At the same time, SAUSAGE was used to carry out dynamic elasto-plastic analysis, and the results were compared with the results of ABAQUS. The results show that the deformation, internal force and damage obtained by SAUSAGE and ABAQUS were relatively close, which indicates that the elasto-plastic model can accurately and truly reflect the dynamics of the structure response.
Keywords:Rizhao Haiyun Plaza; super high-rise building； mixed structure； elasto-plastic time-history analysis； dynamic response
作者簡介：王洋，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email: f4wangyangf4@163.com。
