- 摘 要
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(中國中元國際工程有限公司, 北京 100089)
摘要: 為了提高結構抗震性能,海口雙子塔?南塔核心筒在底部范圍、伸臂桁架相關范圍、頂部范圍采用鋼板混凝土剪力墻,探討了型鋼鋼板對核心筒剪力墻的影響,伸臂桁架設置位置對墻肢拉應力的影響. 通過對結構進行地震作用下的等效彈性分析,確定剪力墻墻肢內(nèi)的型鋼截面尺寸、鋼板截面尺寸及配筋面積;通過對結構進行動力彈塑性時程分析,研究在罕遇地震作用下的剪力墻塑性損傷、剪力墻內(nèi)型鋼與鋼筋的應力狀態(tài). 結果表明,鋼板混凝土剪力墻與普通混凝土剪力墻相比,墻肢厚度減小,墻肢拉應力滿足要求;設置伸臂桁架能有效降低底部墻肢拉應力;在罕遇地震作用下墻體邊緣構件型鋼和縱筋、鋼板均為彈性狀態(tài),部分連梁鋼板達到屈服,連梁縱筋接近屈服.配置了型鋼和鋼板的剪力墻滿足各項設計要求.
關鍵詞: 海口雙子塔; 超高層建筑; 框架?核心筒結構; 鋼板混凝土剪力墻; 墻肢拉應力
中圖分類號:TU318+. 2 文獻標志碼:A 文章編號:1002?848X(2022)16?0011?06
DOI:10. 19701 / j. jzjg. ZJ200030
Design and study on corewall of Haikou Twin Towers?South Tower
ZHANG Te, ZHANG Tongyi, ZHANG Song, WANG Ning, XIAO Ziqiang
(China IPPR International Engineering Co. , Ltd. , Beijing 100089, China)
Abstract: In order to improve the seismic performance of the structure, steel plate concrete shear wall was used in corewallof Haikou Twin Towers?South Tower at the parts such as the bottom of the structure, the stories with outriggers and the topof the structure. The influence of the steel plate on the corewall shear walls as well as the influence of the position of theoutriggers on the tension stress of the shear wall was discussed. The equivalent elastic analysis of the structure under theearthquake action was carried out to determine the size of section steel, the size of steel plate and the reinforcement areas ofthe shear walls. The dynamic elasto?plastic time?history analysis of the structure was carried out under the rare earthquaketo study the shear wall plastic damage, the stress state of the steel plate and the steel reinforcement. The results show thatcompared with common concrete shear walls, the thickness of the steel plate concrete shear wall is reduced and the tensionstress of the wall meets the requirements. Setting the outriggers can effectively reduce the tension stress of the bottom wall.Under the rare earthquake, the section steel in the wall edge members, longitudinal bars and steel plates are in an elasticstate, some of the steel plates of the coupling beams have yielded, and the longitudinal bars of the coupling beams are closeto yielding. The shear wall equipped with section steel and steel plate meets various design requirements.
Keywords:Haikou Twin Towers; super high?rise building; frame?corewall structure; steel plate concrete shear wall; walltension stress
∗企業(yè)橫向科研基金項目(S2014035T).
第一作者:張?zhí)?碩士,高級工程師,一級注冊結構工程師,主要從事建筑結構設計工作,Email:zhangte@ ippr. net.
[引用本文] 張?zhí)?張同億,張松,等. ?？陔p子塔?南塔核心筒設計與研究[ J]. 建筑結構,2022,52(16):11?16.ZHANG Te,ZHANG Tongyi,ZHANG Song,et al. Design and study on corewall of Haikou Twin Towers?South Tower[ J].Building Structure,2022,52(16):11?16.
