建筑结构

2018, v.48;No.489(21) 25-30+89

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中行湖北分行超高层办公楼结构设计
Structural design on super-tall office building for Hubei Branch of Bank of China

Esam Ali;乐胜辉;侯国求;卢亦焱;
Esam Ali;Yue Shenghui;Hou Guoqiu;Lu Yiyan;School of Civil Engineering, Wuhan University;Central-South Architecture Design Institute Co., Ltd.;

摘要(Abstract):

中行湖北分行办公楼建筑总高度为239.9m,采用钢管混凝土柱+钢梁混合框架+钢筋混凝土核心筒的混合结构体系,核心筒剪力墙为整体结构提供大部分的抗侧刚度,筒体与楼盖钢梁之间采用铰接,在15层、30层设置了伸臂桁架和带状桁架形成加强层。分析表明,结构体系能满足承载力、整体稳定性、抗侧力和变形的需求。结构多项指标超限,根据设定的抗震性能目标,针对不同重要性的构件采取不同的性能水准进行了分析和设计。通过罕遇地震作用下的弹塑性时程分析,找出了结构潜在的抗震薄弱部位和薄弱构件,并提出了相应的抗震加强措施。
The tobal building height of the office building for Hubei Branch of Bank of China is 239.9 m, and it adopts composite structural system of concrete-filled steel tubular column, hybrid steel beam frame and reinforced concrete corewall. The corewall shear wall provides most of the lateral stiffness of the whole structure. The joint between the corewall and the steel beam of the floor is hinged. The 15 th and 30 th floors are reinforcement layers with outriggers and belt trusses. The analysis shows that the structural system can meet the requirements of bearing capacity, overall stability, lateral resistance and deformation. The multiple indicators of the structure are out-of-code. According to the set seismic performance targets, different performance levels were analyzed and designed for different importance components.Through the elastic-plastic time-history analysis under the rare earthquakes, potential weak seismic locations and weak components were identified, and corresponding seismic strengthening measures were put forward.

关键词(KeyWords): 超限高层;加强层;伸臂桁架;抗震性能设计;弹塑性时程分析
out-of-code high-rise building;reinforcement layer;outrigger truss;performance-based seismic design;elastic-plastic time-history analysis

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作者(Author): Esam Ali;乐胜辉;侯国求;卢亦焱;
Esam Ali;Yue Shenghui;Hou Guoqiu;Lu Yiyan;School of Civil Engineering, Wuhan University;Central-South Architecture Design Institute Co., Ltd.;

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