000021947 001__ 21947
000021947 005__ 20170622131313.0
000021947 04107 $$aeng
000021947 046__ $$k2017-06-15
000021947 100__ $$aPerdomo, Camilo
000021947 24500 $$aSEISMIC RESPONSE OF RC BRIDGES USING GENERALISED FORCE VECTORS

000021947 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021947 260__ $$bNational Technical University of Athens, 2017
000021947 506__ $$arestricted
000021947 520__ $$2eng$$aNonlinear Static Procedures (NSP) are gaining wider use in performance based earthquake engineering practice due to their simplicity compared to rigorous Nonlinear Time History Analysis (NTHA), and being implemented in the new generation seismic design codes. In this study, a recently proposed NSP for the seismic performance assessment of building structures using the concept of Generalized Force Vectors (GFV), is further validated through application to reinforced concrete Bridges. This method, named Generalized Pushover Analysis (GPA), maximizes the response of a chosen parameter during the seismic response, through the use of the GFV, which are a combination of modal forces representing the instantaneous force acting on the system when such parameter reaches its maximum. In this study, the original GPA implemented in buildings is preliminary adapted to a straight bridge structure and four versions of the algorithm are tested and validated. The accuracy of the GPA algorithm is assessed by comparing the nonlinear static results with the “exact” prediction from NTHA. Several levels of seismic hazard, represented by different return periods of the target spectra, are considered to test the accuracy of the method for low and high seismic demands. Furthermore, the GPA results are also compared with a commonly employed NSP, the Capacity Spectrum Method (CSM). The results obtained for the case study suggest that GPA algorithm for bridges is suitable as a NSP approach for the seismic assessment of bridge structures, demonstrating a good fit with NTHA results and superiority with respect to the predictions of the selected traditional NSP.

000021947 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021947 653__ $$aBridges; Pushover analysis; Nonlinear behaviour; Higher mode effects; Seismic response.

000021947 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021947 720__ $$aPerdomo, Camilo$$iSucuoglu, Haluk$$iMonteiro, Ricardo
000021947 8560_ $$ffischerc@itam.cas.cz
000021947 8564_ $$s1621819$$uhttps://invenio.itam.cas.cz/record/21947/files/18429.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS08] Seismic Safety Assessment of Structures
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000021947 962__ $$r21500
000021947 980__ $$aPAPER