000018453 001__ 18453
000018453 005__ 20170118182223.0
000018453 04107 $$aeng
000018453 046__ $$k2017-01-09
000018453 100__ $$aBhuddarak, Charatpangoon
000018453 24500 $$aNear-Fault Ground Displacement for Seismic Design of Bridge Structures

000018453 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018453 260__ $$b
000018453 506__ $$arestricted
000018453 520__ $$2eng$$aWhen structures located near or across the faults, the effects of ground displacement as well as velocity and acceleration are crucial factors, since the faults produce both step-like static deformation and dynamic pulse-like ground motions. Moreover, the fling-containing time histories are necessary for the seismic analysis and design of bridge structures. As has been observed before, the static offsets can reach from several centimeters to 10 meters (e.g., the Chi-Chi earthquake), and strong ground motion velocity pulses may exceed 100 cm/s. Until now, as there is no concrete synthesis method of design ground displacement, numerical simulation of strong ground motions, emphases on input ground displacement in this study, for such near-fault conditions are very necessary. This paper proposes a hybrid method based on coupling of the stochastic Green’s function method and theoretical Green’s function method. This hybrid method considers both dynamic and static terms. For illustrating the application of this hybrid method, a simulation of one dip-slip fault model was conducted. The results well featured the near-fault ground motions of dynamic displacement with the fling-step. Furthermore, the procedure for seismic design of bridge structures located close or cross fault under multi-input of velocities and displacements, which are simulated by this proposed method is briefly introduced, and a simple 4-span bridge structure across a reverse surface fault was analyzed. The calculation results showed that the synchronized time-histories inputs lead to significant differences in the dynamic response of bridge, which provide a useful reference for the design guidelines for such near-fault bridge engineering.

000018453 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018453 653__ $$anear-fault ground motion, numerical simulation, static terms, dynamic terms, seismic design of bridge

000018453 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018453 720__ $$aBhuddarak, Charatpangoon$$iJunji, Kiyono$$iYoshito, Maeda$$iTakao, Nakatani$$iShuanglan, Wu
000018453 8560_ $$ffischerc@itam.cas.cz
000018453 8564_ $$s2317465$$uhttp://invenio.itam.cas.cz/record/18453/files/1490.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1490.
000018453 962__ $$r16048
000018453 980__ $$aPAPER