論結(jié)構(gòu)抗震的魯棒性
葉列平,程光煜,陸新征,馮鵬
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(1 清華大學(xué)土木工程系; 2 結(jié)構(gòu)工程與振動教育部重點實驗室,北京 100084)[摘要]介紹了結(jié)構(gòu)魯棒性的概念及提高結(jié)構(gòu)魯棒性對避免結(jié)構(gòu)在罕遇地震下垮塌的重要意義。分別從抗震結(jié)構(gòu)體系、結(jié)構(gòu)承載力與延性、結(jié)構(gòu)破壞模式以及贅余構(gòu)件等幾方面討論了提高結(jié)構(gòu)抗震魯棒性的措施,給出了相應(yīng)的設(shè)計建議。[關(guān)鍵詞]結(jié)構(gòu)抗震;魯棒性;結(jié)構(gòu)體系;整體性;破壞模式;結(jié)構(gòu)承載力;結(jié)構(gòu)延性;贅余構(gòu)件Introduction of robustness for seismic structuresYe Lieping1,2, Cheng Guangyu1,2, Lu Xinzheng1,2, Feng Peng1,2(1 Civil Engineering College; 2 Key Lab of Structural Engineering and Vibration of China Education Ministry, Tsinghua University, Beijing 100084,China)Abstract:The concept of robustness of structures and its importance for preventing collapse against strong earthquake are firstly introduced. Then the influence aspects to the robustness of seismic structures, including structural systems, failure modes, strength and ductility of structure, and redundancy elements, are discussed. The approaches to increase the robustness of seismic structures are suggested.Keywords:seismic structure; robustness; structure system; integrity; failure mode; strength; ductility; redundancy elements*長江學(xué)者和創(chuàng)新團隊發(fā)展計劃資助。作者簡介:葉列平,工學(xué)博士,教授,博士生導(dǎo)師,Email:ylp@mail.tsinghua.edu.cn。