常磊1,2，  李志山1,2
(1广州容柏生建筑工程设计事务所，广州510170; 2广州数力工程顾问有限公司，广州510170)

[摘要] 为评价某8度抗震设防区一超高层剪力墙住宅结构的大震安全性，利用广州数力开发的SAUSAGE软件对其进行大震弹塑性分析。针对超高层建筑结构弹塑性精细有限元分析中自由度庞大、分析耗时的问题，介绍了SAUSAGE在分析超大自由度、高度非线性有限元问题的原理及其优势。超高层结构在高烈度区大震下极易进入深度塑性状态，SAUSAGE有效的弹塑性时程分析体现了该结构的薄弱环节及破坏特征，揭露了利用精细有限元法分析超高层结构在大震下的一些破坏形态，为结构设计师提供了有力的设计依据，也初步表明SAUSAGE具有强大的弹塑性分析功能及广泛的应用前景。
[关键词] 超高层建筑；剪力墙结构；抗震研究；弹塑性时程分析
中图分类号：TU973    文献标识码：A  文章编号：1002-848X(2012) S2-0012-06

Application of SAUSAGE in elasto-plastic time-history analysis of a super high-rise building structure under rare earthquake
Chang Lei1,2．Z.lee1.2
(1 RBS Architecture Engineer Design Associate, Guangzhou 510170, China; 2 Guangzhou Scientific Computing Consultants Co., Ltd., Guangzhou 510170, China)

Abstract: To evaluate rare-earthquake safety of a super high-rise shear-wall residential building structure in region of 8-degree of seismic precautionary intensity, the SAUSAGE software developed by Guangzhou Scientific Computing Consultants Co., Ltd. was applied in the structure's elasto-plastic time-history analysis under excitation of rare earthquakes. In view of solving problems with huge degrees of freedoms (DOFs) and time-consuming analysis caused by elasto-plastic fined finite element analysis( FEA) of super high-rise structures, theorem and advantages of SAUSAGE in
managing enormous DOFs and high nonlinearity were introduced. Under rare earthquakes in zone of high seismic precautionary intensity, super lugh-rise structures would be easily tumed to deep plastic.  In solving tlus problem, efficient and effective elasto-plastic time-history analysis by SAUSAGE discovered the structure's vulnerable zone and revealed its failure characteristics, thus reflects some failure states of super high-rise structure under rare earthquake with FEA. The analysis here provides structural engineers helpful design guidance, and also preliminarily indicates SAUSAGE's powerful elasto-plastic analysis feature and widespread application prospect.
Keywords: super high-rise building; shear-wall structure; aseismic analysis; elasto-plastic time-history analysis