000018975 001__ 18975
000018975 005__ 20170118182251.0
000018975 04107 $$aeng
000018975 046__ $$k2017-01-09
000018975 100__ $$aSalinas, Rafael
000018975 24500 $$aEvaluation of Seismic Responses of Building Systems With Self-Centering Concrete Structural Walls

000018975 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018975 260__ $$b
000018975 506__ $$arestricted
000018975 520__ $$2eng$$aCurrently, the development of seismic design and construction procedures is oriented toward reducing damages in structures and in building equipment in response to various levels of earthquake intensity. Among the innovative strategies proposed to reduce damages in structures, the use of structural elements with precast concrete and self-centering walls has been proposed. A self-centering wall is defined as a reinforced concrete wall on a foundation with post-tensioned tendons fixed to the foundation and without a monolithic joint between the wall and the foundation. Some ductile steel bars are included at the base of the wall for energy dissipation and for the formation of a hybrid system. Behavior of precast walls with unbonded post-tensioned tendons has been studied by several authors by tests that showed some capabilities of systems with unbonded post-tensioned tendons, such as self-centering response and decreased residual displacements. This paper describes the results of shaking table tests of three five-story miniature buildings with dual (wall–frame) systems, designed with seismic design criteria similar to those used in conventional dual systems. Two tests units had selfcentering reinforced concrete structural walls, and one test unit had a conventional reinforced concrete structural wall. The self-centering walls were built with unbonded post-tensioning tendons and energy dissipators of ASTM A615 steel joining the wall base and the wall foundation. The tests showed that the test units with self-centering dual systems behaved in a manner similar to the test unit with the conventional dual system. In addition, an increase in the participation of the selfcentering structural walls in the total seismic response was observed to lead to an increase in overstrength and a decrease in residual drifts of the structure, as well as a decrease in residual deformations in critical sections of the frame elements.

000018975 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018975 653__ $$aShaking table test; Self-centering walls; Wall-frame systems; Reinforced concrete structures.

000018975 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018975 720__ $$aSalinas, Rafael$$iRodriguez, Mario$$iSanchez, Roque
000018975 8560_ $$ffischerc@itam.cas.cz
000018975 8564_ $$s2035594$$uhttps://invenio.itam.cas.cz/record/18975/files/2610.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2610.
000018975 962__ $$r16048
000018975 980__ $$aPAPER