Experimental study of friction dissipators for seismic protection of building structures |
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| Authors: | F López-Almansa S T de la Cruz C Taylor |
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| Institution: | [1]Technical University of Catalonia, Architecture Structures Department, Barcelona, Spain [2]Universidad Autoenoma de Ciudad Juarez, Civil and Environmental Engineering Department, Ciudad Juarez, Chihuahua, Mexico [3]Civil Engineering Department, University of Bristol, Bristol, UK |
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| Abstract: | This paper presents the results from unidirectional shaking table tests of two reduced scale steel models of a building frame,
with one and two fl oors, respectively. These frames incorporate friction dissipators at every fl oor. The inputs are sine-dwells
and artifi cial and registered earthquakes. This study is part of a larger research project aiming to assess the seismic effi
ciency of friction dissipators by means of an integrated numerical and experimental approach. Inside this framework, the main
objectives of these experiments are to: (i) collect a wide range of results to calibrate a numerical model derived within
the project, (ii) clarify some of the most controversial issues about friction dissipators (including behavior for inputs
containing pulses, capacity to reduce resonance peaks, introduction of high frequencies in the response, and selfgenerated
eccentricities), (iii) better understand their dynamic behavior, (iv) provide insight on the feasibility and reliability of
using simple friction dissipators for seismic protection of building structures and (v) characterize the hysteretic behavior
of these devices. Most of these objectives are satisfactorily reached and relevant conclusions are stated. |
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| Keywords: | building structures earthquake engineering passive control friction energy dissipators experimental verifìcation shaking table tests |
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