000021638 001__ 21638
000021638 005__ 20170622131257.0
000021638 04107 $$aeng
000021638 046__ $$k2017-06-15
000021638 100__ $$aGu, Yin
000021638 24500 $$aSEISMIC RESPONSE OF A HIGH-PIER BRIDGE SUBJECTED TO OBLIQUE INCIDENCE WAVES

000021638 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021638 260__ $$bNational Technical University of Athens, 2017
000021638 506__ $$arestricted
000021638 520__ $$2eng$$aOblique incidence waves play a vital role in the spatial variation of seismic ground motions. It is important to consider the oblique incidence of a seismic wave in a valley or in other complex topographies. It is too expensive for realistic 3D simulations of a soil-bridge system. In the work reported here, an efficient method of artificial boundary has been substantially improved, and the numerical simulation method of free field with uniform topographic under oblique incidence waves is studied. The numerical accuracy is tested by comparing with the analytical solutions. A finite element model of a bridge-soil system is built to analyze the seismic response of a continuous rigid-frame bridge with high piers located in a plain topography as well as deep valley with the consideration of oblique incidence waves. The topographic effect on amplitude and distribution of internal forces were determined for different oblique incident angles and different shear wave velocities of the soil. The dynamic response of this bridge under P-wave and SV-wave are summarized. The results show that the angle of the oblique incidence waves has greater effect on internal forces of the piers and piles in a deep valley than in uniform field shapes. If the bridge is located in a valley, the effect of oblique incidence waves on the bridge should be considered.

000021638 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021638 653__ $$aKeywords：Seismic Analysis, High-Pier Bridge, Oblique Incidence Waves, Viscous-Spring Artificial Boundary, Soil-Structure Dynamic Interaction, P Wave, SV Wave

000021638 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021638 720__ $$aGu, Yin$$iZhou, Weidong$$iGuo, Hongxiang
000021638 8560_ $$ffischerc@itam.cas.cz
000021638 8564_ $$s1592436$$uhttps://invenio.itam.cas.cz/record/21638/files/17335.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS24] Seismic Input for Bridges: From Scenario Earthquakes to Nonsynchronous Input
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000021638 962__ $$r21500
000021638 980__ $$aPAPER