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超限高層抗震性能目標的確定實例
于海博,陸道淵,趙明
摘 要
(華東建筑設計研究院有限公司,上海 200002)
[摘要]我國規(guī)范采用三水準設防、兩階段設計的方法進行抗震設計?;谛阅艿目拐鹪O計理論提出了多水準、多目標設防的概念,是當前國際抗震設計發(fā)展的方向。實現性能設計,首先要提出切實可行的抗震性能目標。首先列舉了國外規(guī)范及我國規(guī)程提出的結構抗震性能要求,繼而歸納總結了國內學者針對超限高層提出的性能目標。在此基礎上,給出了4棟典型超高層設計過程中采用的抗震性能目標。在進行超限高層結構設計時,除確定結構整體的性能目標外,應針對結構的薄弱部位制定相應的性能目標并采取相應措施,以保證結構設計的安全合理。
[關鍵詞]超限高層;抗震性能設計;性能目標
Determination and examples of the performance objectives to super high-rise buildings
Yu Haibo, Lu Daoyuan, Zhao Ming(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)
Abstract:In Code for seismic design of buildings of China, three seismic fortification levels and two-stage design methods are applied. Performance-based seismic design (PBSD) is the development trend of seismic design in the world, which puts forward to multi-target and multi-level fortification. To manage PBSD, we should establish realistic performance objectives. The performance objectives described in American codes and Chinese codes were introduced, then the research achievements of Chinese scholars were summarized. After that, four examples were given to illustrate the determination of performance objectives in super high-rise buildings. The main principle should be that, not only the integrative objectives, but also the weakness of the structure which engineers should pay adequate attention to and take effective measures to assure the safety of the structure design.
Keywords:super high-rise building; performance-based seismic design (PBSD); performance objective
作者簡介:于海博,碩士,工程師,Email:haibo.xyy@gmail.com。
參考文獻
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