000020304 001__ 20304
000020304 005__ 20170118182408.0
000020304 04107 $$aeng
000020304 046__ $$k2017-01-09
000020304 100__ $$aMoniri, Hassan
000020304 24500 $$aInvestigation of Fling-Step Effect on Mid-Rise R/C Buildings Subjected To Near Source Strong Motion

000020304 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020304 260__ $$b
000020304 506__ $$arestricted
000020304 520__ $$2eng$$aIn the proximity of an active fault system, ground motions are significantly affected by the faulting mechanism, direction of rupture propagation relative to the site (e.g., forward directivity), as well as the possible static deformation of the ground surface which is associated with fling-step effects. These near-source outcomes cause most of the seismic energy from the rupture to arrive in a single coherent long-period pulse of motion. The failure of modern engineered structures observed within the near-fault region of the 1994 Northridge earthquake revealed the vulnerability of existing buildings against pulsetype ground motions. Additionally, the strong directivity effects during the 1999 Kocaeli, Duzce, and Chi-Chi earthquakes renewed attention on the consequences of near-fault ground motions on structures. This paper investigates the correlation between illustrious characteristics of near field ground motion Intensity Measures (IM) and the corresponding seismic response of reinforcement concrete (RC) frame buildings, by the use of Incremental Nonlinear Dynamic Analysis (IDA) method. Two in plan symmetric 10 and 15-story RC frames (as mid-rise buildings). Moreover, IDA has been used to assess the collapse capacity and expected earthquake damage level as a function of the spectral acceleration at the fundamental period of the building. Twenty eight bidirectional ground motions used to simulate the earthquake. The models designed for two different scenarios depending on the distance to the fault, (i.e. 14 near-fields and 14 far-fields ground motion) and applied along the structural axes of the buildings. The OpenSees software was used to conduct nonlinear structural evaluations. Numerical modeling showed that the RC buildings are under large deformation requirements in the presence of velocity pulses in a velocity time history. Moreover, the results highlighted some certain intensity measures which exhibited strong correlation with the seismic damage of RC models. However, the degree of correlation between those values and the seismic damage in near-fields depends on the vertical pulse of ground motion can have a great influence on the seismic response of a building when combined with a horizontal pulse.

000020304 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020304 653__ $$aNear-fault, Reinforced concrete building, Seismic demands, Incremental dynamic analysis (IDA).

000020304 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020304 720__ $$aMoniri, Hassan
000020304 8560_ $$ffischerc@itam.cas.cz
000020304 8564_ $$s609633$$uhttps://invenio.itam.cas.cz/record/20304/files/936.pdf$$yOriginal version of the author's contribution as presented on USB, paper 936.
000020304 962__ $$r16048
000020304 980__ $$aPAPER