某超限高层办公楼抗震概念设计

以某超限高层办公楼为例,阐述基于抗震概念和结构受力原理进行房屋平面、立面布置及整体结构设计的分析方法,强调结构设计不能盲目受制于各种计算软件的重要性。

某广场超限高层组合结构抗震设计

某广场地下3层,地上47层,总高度163.2m,属B类高度结构。本文介绍其结构布置和选型、结构抗震性能化设计目标、整体计算分析等,并针对结构特点,结合超限审查专家的意见,介绍设计中采取的针对性措施,可供类似工程结构设计参考。

南京中航科技大厦A楼结构抗震设计

南京中航科技大厦A楼塔楼采用钢筋混凝土框架-核心筒结构体系,裙房为框架-剪力墙结构体系。本文介绍了该项目的结构布置与结构体系的特点、结构超限情况和对应的抗震设计性能目标,以及多遇地震和风荷载作用下结构的整体弹性分析;对裙房楼板局部开大洞进行了应力分析,并补充整体结构静力弹塑性推覆分析;最后,提出对应的结构抗震加强措施。

Assessment of the Seismic Behavior of the Reinforced Concrete Structures Based on the Probabilities

This paper presents an analytical foundation for probability-based formats for seismic design and assessment of structures. These formats are designed to be suitable for code and guideline implementation. The framework rests on non-linear, static seismic analysis. The formats can be used to ensure that the structural seismic design can be expected to satisfy specified probabilistic performance objectives, and perhaps （more novel） that it does so with a desired, guaranteed degree of confidence. Performance objectives are presumed to be expressed as the annual probability of exceeding a structural performance level. Structural performance levels are in turn defined as specified structural parameters （e.g., ductility, strength, maximum drift ratio, etc.） reaching a structural limit state （e.g. onset of yield, collapse, etc.）. The degree of confidence in meeting the specified performance objective may be quantified through the upper confidence bound on the （uncertain） probability. In order to make such statements, aleatory （random） uncertainty and epistemic （knowledge limited） uncertainty must be distinguished. The single seismic design foundation can be formatted into the alternative conventional design methods such as LRFD design and fragility-hazard design. Versions of the new developments reported here are already in place in recently completed seismic guidelines.

莆田·地壹大厦超限高层办公楼结构设计

详细介绍某超限高层办公楼结构设计的重点与难点、超限审查的过程;针对项目的不规则情况采取有效的计算分析与抗震性能目标设计。