Seismic performance of the polymer flexible joints in rc frames with various infill wall aspect ratios / A. Tugrul Akyildiz, Arkadiusz Kwiecień // W: Proceedings of International Conference on Istanbul ... więcej

Seismic performance of the polymer flexible joints in rc frames with various infill wall aspect ratios / A. Tugrul Akyildiz, Arkadiusz Kwiecień // W: Proceedings of International Conference on Istanbul and Earthquake 2022 [Dokument elektroniczny] / ed. in chief Mehmet Fatih Altan ; org. by IAU Disaster Training Application and Research Center (AFAM). – İstanbul : İstanbul Aydin Üniversitesi, 2022. – S. 31-46 : fot., rys., tab., wykr. – Tryb dostępu: https://www.aydin.edu.tr/tr-tr/arastirma/universite-yayinlari/Documents/Proceedings%20of%20International%20Conference%20on%20Istanbul%20and%20Earthquake%202022.pdf. – Bibliogr. 24 poz., Abstr. – ISBN 978 625 7783 48 4

Earthquakes affect buildings in variety of ways. Among those, infill wall failures constitute a high proportion of the total visible damages in multi-story constructions, which can be easily observed even ... więcej

Earthquakes affect buildings in variety of ways. Among those, infill wall failures constitute a high proportion of the total visible damages in multi-story constructions, which can be easily observed even under low or moderate intensity earthquakes. The failures occur as a result of the interaction forces emerging at the interfaces of surrounding frame and walls, and mainly attributed to the brittle intrinsic characteristics of the materials. In order to overcome this challenge, an innovative solution aiming to mitigate damages on the structural components of the infilled RC buildings from the hazardous effects of seismic motions is investigated. The solution proposes to use a material called Polyurethane PM as the flexible joint between different structural members i.e., infill walls and concrete frames, in reinforcedconcrete (RC) buildings. The material has high ductility features that allow deformability capacity to reach remarkable levels. Thus, earthquake induced lateral displacement demands on the structural systems can be satisfied by means of dissipating the seismic energy up to the high drift levels, which is a crucial point from the earthquake engineering perspective. In this study, performance of the aforementioned PolyUrethane Flexible Joint (PUFJ) is examined in single-bay and single-story RC frames with different width-height infill wall aspect ratios. Three dimensional models are created numerically in the finite elements method (FEM) environment and gradually increasing monotonic horizontal loads are imposed on the top-beam level of the frames. For the comparison purposes, Stiff (STF) type of frames are also created which represent the traditional mortar joint implementation between the frame and infill walls. Moreover, as a reference, analyses on the BareFrame (BF) systems are conducted, too. The results are evaluated in terms of the stiffness and strength status of the frames as a whole system and besides, performances of the different materials are discussed on the individual component level.