000010310 001__ 10310
000010310 005__ 20141205155713.0
000010310 04107 $$aeng
000010310 046__ $$k2008-10-12
000010310 100__ $$aIchioka, Y.
000010310 24500 $$aStructural System Enabling Prompt Recovery after Earthquakes

000010310 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010310 260__ $$b
000010310 506__ $$arestricted
000010310 520__ $$2eng$$aAfter experiencing catastrophic earthquakes in major cities worldwide in 1990’s and 2000’s, the general public recognized that the economical loss due to the out-of-service period for repairing the damaged building was more significant than the cost to rehabilitate the damaged building itself. The base isolation system is one of the solutions to keep building functions after earthquakes, but the initial and maintenance costs are too high to apply to all kinds of buildings. The authors proposed a new economical structural system which enables prompt recovery after earthquakes using precast prestressed concrete frames with energy dissipating elements. Precast prestressed concrete structures show high self-centering characteristics with negligible damage and enable prompt recovery, if the excessive drifts due to nonlinear elastic behavior are reduced by using some energy dissipating elements. The structural system with precast concrete frames and energy dissipators satisfy the social demand with much less cost compared to that of the base isolation system. This paper introduces two types of the structural system and describes the design concepts. The focal point is the optimization of self-centering and energy dissipating properties. An FEM model was developed to simulate experimental results with high accuracy. From this analysis, a simplified calculation method was proposed to estimate hysteretic characteristics of the structures with each types of the system. Finally, design procedures for optimization of the restoring performance and the amount of energy dissipators were introduced.

000010310 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010310 653__ $$aPrecast prestressed concrete structure, Damage control, Residual deformation, Energy dissipation, Optimization of hysteresis loop

000010310 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010310 720__ $$aIchioka, Y.$$iKono, S.$$iWatanabe, F.
000010310 8560_ $$ffischerc@itam.cas.cz
000010310 8564_ $$s677984$$uhttps://invenio.itam.cas.cz/record/10310/files/05-06-0080.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0080.
000010310 962__ $$r9324
000010310 980__ $$aPAPER