摘要
结合某工程实例,对存在扭转不规则、大高宽比且超B级高度的超高层结构进行分析,并根据超限水平、结构特点及经济性评价等综合因素,选定结构的抗震性能目标。详细阐述主体结构在多遇地震、设防地震及罕遇地震作用下的设计控制指标及设计要点。通过计算分析,验证了结构在不同工况下的整体指标满足规范要求,发现结构薄弱部位并采取相应的加强措施,以达到设计提出的性能目标,结构具备一定的安全储备和良好的抗震性能。
Based on one actual engineering case,structural analysis is carried out for a super high-rise structure with torsional irregularity,large aspect ratio and height exceeding the limit of Class B.Seismic performance objectives are selected according to comprehensive factors such as the code-exceeding degree,structural characteristics and economic evaluation.The design control indexes and points for attention of the main structure under frequent earthquakes,moderate earthquakes and rare earthquakes are described in detail.Through calculation and analysis,it is verified that the overall indexes of the structure under different working conditions meet the requirements of specification.Meanwhile,weak positions of the structure are found,and corresponding strengthening measures are taken to achieve the performance objectives proposed in the design.The overall safety and reliability of the structure is ensured,and good seismic performance is achieved.
作者
刘哲
LIU Zhe(W&R Architectural Design&Planning Co.,Ltd.,Shanghai 200002,China)
出处
《结构工程师》
2023年第3期194-202,共9页
Structural Engineers
关键词
超限高层住宅
抗震性能化设计
剪力墙结构
大高宽比
动力弹塑性分析
code-exceeding high-rise residential building
performance-based seismic design
shear wall structure
large aspect ratio
dynamic elasto-plastic analysis
