| 基于性能的既有钢筋混凝土建筑结构抗震评估与加固技术研究 |
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| 引用本文： | 黄超,季静,韩小雷,郑宜,何伟球,戴金华.基于性能的既有钢筋混凝土建筑结构抗震评估与加固技术研究[J].地震工程与工程振动,2007,27(5):72-79. |
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| 作者姓名： | 黄超 季静 韩小雷 郑宜 何伟球 戴金华 |
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| 作者单位： | 1. 华南理工大学,建筑学院高层建筑结构研究所,广东,广州,510640
2. 华南理工大学,建筑学院高层建筑结构研究所,广东,广州,510640;华南理工大学,亚热带建筑科学国家重点实验室,广东,广州,510640 |
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| 基金项目： | 广东省自然科学基金项目(06105416) |
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| 摘 要： | 根据我国现行的建筑结构抗震规范,无论是新建建筑结构的抗震设计还是既有建筑结构的抗震评估与加固,均通过小震弹性承载力计算 抗震延性构造措施来达到"小震不坏、中震可修、大震不倒"的抗震设防目标(对于不规则且具有明显薄弱部位的建筑结构还需要进行罕遇地震作用下的弹塑性层间变形验算)。对于抗震延性构造措施不满足现行规范的既有建筑结构的评估、改建、扩建,如果仅通过小震弹性的承载力计算,显然无法达到"大震不倒"的目标。本文通过引入国际上先进的基于性能的结构抗震思想,以结构层间位移和结构构件变形作为性能目标,从定量上解决了既有钢筋混凝土建筑结构的抗震评估与加固问题。
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| 关 键 词： | 基于性能 既有钢筋混凝土建筑结构 抗震评估与加固 |
| 文章编号： | 1000-1301（2007）05-0072-08 |
| 修稿时间： | 2007-04-26 |
Research on performance-based seismic evaluation and strengthening for existing reinforced concrete structures |
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| HUANG Chao,JI Jing,HAN Xiaolei,Jack CHEANG,HE Weiqiu,DAI Jinhua.Research on performance-based seismic evaluation and strengthening for existing reinforced concrete structures[J].Earthquake Engineering and Engineering Vibration,2007,27(5):72-79. |
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| Authors: | HUANG Chao JI Jing HAN Xiaolei Jack CHEANG HE Weiqiu DAI Jinhua |
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| Institution: | 1. Tall Building Structure Research Institute, College of Architecture and Civil Engineering, South China University of Technology, Guangzhou 510640, China ; 2. State Key Laboratory of Subtropical Architcture Science, South China University of Technology, Guangzhou 510640,China |
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| Abstract: | Based on the current seismic codes,the elastic capacity calculation under frequent earthquake and ductile details of seismic design should be used for both seismic design of new buildings and seismic evaluation of existing buildings to satisfy the seismic fortification criterion,namely "no damage under frequent earthquake,repairable under moderate earthquake,and no collapse under severe earthquake".For the evaluation,rebuilding and extending of existing structures which dissatisfy the ductile details of current seismic codes,the elastic capacity calculation under frequent earthquake is obviously not enough.In this paper,the advanced performance-based seismic theory is introduced while story drift ratio and deformation of component are used as performance targets to solve the problems of seismic evaluation and strengthening for existing reinforced concrete structures. |
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| Keywords: | performance-based existing reinforced concrete structures seismic evaluation and strengthening |
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