INFLUENCE OF THE STORY STIFFNESS OF REINFORCED CONCRETE FRAME WITH PROPORTIONAL HYSTE

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INFLUENCE OF THE STORY STIFFNESS OF REINFORCED CONCRETE FRAME WITH PROPORTIONAL HYSTERETIC DAMPERS ON THE SEISMIC RESPONSE

Author: Juan andrés OviedO* | Size: 2.9 MB | Format: PDF | Quality: Unspecified | Publisher: Revista EIA, ISSN 1794-1237 Número 17, p. 121-137. Julio 2012 Escuela de Ingeniería de Antioquia, Medellín (Colombia) | Year: 2012 | pages: 17

This paper investigates the influence of the story stiffness of reinforced concrete (R/C) frame on the seismic
response of R/C buildings with proportional hysteretic dampers. For this purpose, non-linear time-history analyses
were conducted on a series of multi-degree-of-freedom system models that include a wide range of structural
parameters and vertical distributions of story stiffnesses and strengths of R/C main frame and dampers. Although
the basic purpose of damper installation is to reduce deformation demands, the results of analyses indicate that
the story-drift demand on an entire system could be larger than that of the structure without dampers, depending
highly on the stiffness and response period of R/C main frame. Moreover, dampers are shown to be more efficient
in reducing the story-drift demand when installed into a flexible R/C main frame.

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SEISMIC PERFORMANCE OF STORY-DRIFT-CONTROLLED REINFORCED CONCRETE FRAMES WITH HYSTERETIC DAMPERS

Author: Juan Andres OVIEDO-AMEZQUITA Candidate for the Degree of Doctor of Engineering Supervisor: Professor Mitsumasa MIDORIKAWA Division of Architectural and Structural Design | Size: 327 KB | Format: PDF | Quality: Unspecified | pages: 6

In the passive control of building structures, hysteretic
dampers are the most prevalent structural members
installed into a building to improve its seismic
performance through dissipating most of the vibration
energy imposed by ground motions.

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