TAILIEUCHUNG - Introducing resilience factor in the structure as a new control coefficient

This article introduces a new resilience factor which is a function of energy dissipation factors of input seismic energy. Mathematical equations are presented for this factor and its limits are determined for different periods. The applicability of the proposed factor is also investigated for two typical structural examples. | Introducing resilience factor in the structure as a new control coefficient Engineering Solid Mechanics 4 2016 177-186 Contents lists available at GrowingScience Engineering Solid Mechanics homepage esm Introducing resilience factor in the structure as a new control coefficient Fereydoon Omidinasaba Shima Najjarb Hossein Rezaeic and Peyman Beiranvandc a Assistant Professor Department of Civil Engineering Lorestan University Khorram abad Iran b Department of Civil Engineering Ferdowsi University of Mashhad Mashhad Iran c Lecturer Department of Civil Engineering Lorestan University Khorram abad Iran A R T I C L EI N F O ABSTRACT Article history When a structure is influenced by the earthquake external force some energy imposed to the Received 6 March 2016 structure is dissipated and remained energy causes structure displacements. Dissipated energy Accepted 27 June 2016 in the structure depends on the type of structure and its optimal engineering design. In any Available online typical structure the type of connections stiffness of structure dampers place of windfall and 28 June 2016 Keywords damper and other factors play significant role in the amount of dissipated energy. This article Dissipated energy introduces a new resilience factor which is a function of energy dissipation factors of input Optimal design seismic energy. Mathematical equations are presented for this factor and its limits are Jump factor determined for different periods. The applicability of the proposed factor is also investigated Practical examples for two typical structural examples. 2016 Growing Science Ltd. All rights reserved. 1. Introduction When a structure exposes to the seismic force it sweeps with descending ascending or monotonic movement. Free vibration of a structure equipped with the damper in an optimal place will approach to zero in descending path. But a structure without any external damper reduces due to vibrational movement in any time interval like .

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