Experimental and numerical investigation of lead-rubber dampers in chevron concentrically braced frames

• Autorzy: Zeynali K. , Saeed Monir H. , Mirzai N. M. , Hu J. W.

Identyfikatory

DOI

10.1016/j.acme.2017.06.004

• Języki publikacji: EN

Abstrakty

EN

This paper presents a theoretical and experimental evaluation of the application of lead rubber dampers (LRD) in the chevron bracing of structures. This device consists of a circular lead core with several layers of steel and rubber plates that are sandwiched together. This damper was manufactured at the earthquake engineering laboratory of Urmia University and installed inside a SDOF steel frame. The frame was placed on a shaking table, and its responses under several earthquake excitations were recorded. A 3D finite element model was created for the device, and hyper-elastic properties were determined for the rubber layers. To check the effectiveness of the device in mitigating the responses of multi-story frames, several nonlinear time history analyses were conducted on the structures using three earthquake excitations. The results indicate that significant reductions in the stories’ drift can be achieved by installing lead-rubber dampers in the chevron bracing.

Słowa kluczowe

EN

lead-rubber bearing; shaking table tests; finite element analysis; hyper-elastic

PL

łożysko gumowe; analiza elementów skończonych; elastyczność

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 1
• Strony: 162--178
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Zeynali K.

• Department of Civil Engineering, Urmia University, Urmia, Iran

autor

Saeed Monir H.

• Department of Civil Engineering, Urmia University, Urmia, Iran

autor

Mirzai N. M.

• School of Civil Engineering, University of Tehran, Tehran, Iran

autor

Hu J. W.

• Department of Civil and Environmental Engineering, Incheon National University, 12-1 Songdo-dong, Yeonsu-gu, Incheon 22012, South Korea
• Head of Center, Incheon Disaster Prevention Research Center, Incheon National University, 12-1 Songdo-dong, Yeonsu-gu, Incheon 406-840, South Korea

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018)