000020211 001__ 20211
000020211 005__ 20170118182400.0
000020211 04107 $$aeng
000020211 046__ $$k2017-01-09
000020211 100__ $$aChen, Jun
000020211 24500 $$aDamage-Based Yield Point Spectra Subjected To the Mainshock-Aftershock Sequence-Type Ground Motions

000020211 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020211 260__ $$b
000020211 506__ $$arestricted
000020211 520__ $$2eng$$aThis paper presents a new modified yield point spectra (YPS) method, which can be used to assure seismic design safety. Historical earthquake data have shown that structures suffering from aftershock ground motions may become damaged and even collapse. More than 267 mainshock-aftershock sequence-type ground motion records were employed to calculate the dynamical response of single-degree-of-freedom (SDOF) systems. This data and the strength reduction factor were used to assess ground-motion damage using ductility demand and accumulated damage demand. This research and resultant modified yield point spectra led to an assessment of strength demand under mainshock ground motions and mainshockaftershock sequence-type ground motions, respectively. Findings demonstrated that the strength demand under mainshockaftershock sequence-type ground motions will increase by 10% to 40%. Meanwhile, the modified yield point spectra (YPS) were used to assess damage of structures after earthquakes, and determine admissible design regions of strength and stiffness to satisfy performance-based design objectives. Finally, a test using an RC structure and the modified YPS method was employed to verify the rationality of the new method.

000020211 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020211 653__ $$ayield point spectra, strength reduction factor, main-aftershock sequence-type ground motions, damage index

000020211 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020211 720__ $$aChen, Jun$$iZhang, Yongqun
000020211 8560_ $$ffischerc@itam.cas.cz
000020211 8564_ $$s203056$$uhttps://invenio.itam.cas.cz/record/20211/files/755.pdf$$yOriginal version of the author's contribution as presented on USB, paper 755.
000020211 962__ $$r16048
000020211 980__ $$aPAPER