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Investigation on Mechanical Properties of Masonry Infill Wall Strengthened with ECC
Yue Li,Jincai Zhu,Zigeng Wang 대한토목학회 2019 KSCE Journal of Civil Engineering Vol.23 No.1
Engineered Cementitious Composite (ECC) is an advanced composite material with strain-hardening and multiple-cracking behaviors. In this study, two types of ECC materials were troweled on masonry infill walls strengthened with expansion bolt and interfacial agent. The seismic performance of the unreinforced and the ECC reinforced masonry structures was evaluated by the reversed cyclic loading test. The results showed that the application of the ECC on the masonry infill walls can improve the ultimate bearing capacity (in plane), ductility, stiffness and accumulative energy dissipation of the structure. Compared with the masonry structure with one side reinforced by the ECC, the structure with both sides reinforced by the ECC could better improve the ultimate bearing capacity, stiffness and cumulative energy dissipation with little difference on the ductility improvement. Moreover, the expansion bolt and the interfacial agent used to improve the connection between the ECC and the masonry structure have the ability to greatly increase the mechanical properties of the structure under cyclic loading.
黃進財 ( Huang Jincai ),朱文清 ( Zhu Wenqing ) 중국한국(조선)어교육연구학회 2023 한국(조선)어교육연구 Vol.21 No.0
the nonverbal communication plays an very important role in communication behavior of human, and is dispensable in inter cultural communication. Although Chinese and Korean culture share many similarities, they have distinctive national and cultural features because of different geographical location and environment and historical development, which leads to differences in nonverbal communication behavior of two countries. Therefore, the understanding and studying of nonverbal communication shouldn’t be neglected when we learn verbal communication. This article analyses the nonverbal communication behaviors in Korean culture, and puts forward the teaching strategy of nonverbal communication, which is of importance in inter cultural communication.