（1 中国中元国际工程有限公司， 北京 100089； 2 海南华磊建筑设计咨询有限公司， 海口 570206）

［摘要］骏豪广场项目位于高烈度区的海口市（8度（0-3g））。其建筑平面为三角形，难以满足高烈度区抗侧刚度的要求。通过在周边外框的薄弱部位灵活布置型钢混凝土大柱及型钢混凝土剪力墙，以显著提高外框的抗侧刚度。在外框顶部设置型钢混凝土大斜梁，与腰桁架、伸臂桁架一起增加外框结构的整体性。根据受力特点在三角形核心筒角部设置钢骨，提高轴向抗拉承载力。弹塑性静力及动力分析表明，主体结构抗侧传力机理合理、流畅、高效；其抗侧刚度及抗震性能能够满足规范规定的各项性能要求。

［关键词］超高层建筑； 混合结构； 加强层； 伸臂桁架； 腰桁架

中图分类号：TU318， TU973文献标识码：A文章编号：1002-848X(2018)05-0018-06

Structural design of high-rise tower building with triangular plan layout in high seismic intensity zone

Wang Wenyuan1, Wen Haiyan2, Zhang Tongyi1, Zhang Song1, Zhang Jianming1

(1 China IPPR International Engineering Co.,  Ltd.,  Beijing 100089, China; 2 Hainan Hualei Building Design & Consultant Co.,  Ltd.,  Haikou 570206, China)

Abstract:The Junhao Plaza locates in Haikou city of high seismic intensity zone with eight degree seismic fortification intensity and seismic acceleration of 0-3g. It has a triangular plan layout which is characterized by its weak lateral stiffness. Through the flexible arrangement of steel reinforced concrete columns and steel concrete shear wall at weak parts of the surrounding frame to significantly improve the lateral stiffness of the frame. Steel reinforced concrete inclined beam was set on the top of the frame, to increase the overall integrity of frame structure combined with belt trusses and outriggers. According to the force characteristic, steel bone was set in the corner of the triangle corewall to improve the axial tensile bearing capacity. The elasto-plastic static and dynamic analyses show that the lateral mechanism of the main structure is reasonable, smooth and efficient; lateral stiffness and seismic performance  of the main structure can satisfy the performance requirements in specification.

Keywords:super high-rise building; hybrid structure; strengthening story; outrigger; belt truss

作者简介：王文渊，博士，教授级高级工程师，一级注册结构工程师，Email:wangwenyuan@ippr.net。