000009538 001__ 9538
000009538 005__ 20141205150216.0
000009538 04107 $$aeng
000009538 046__ $$k2008-10-12
000009538 100__ $$aBi, Kai-Ming
000009538 24500 $$aStochastic Analysis of the Required Separation Distance to Avoid Seismic Pounding Between Adjacent Bridge Decks

000009538 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009538 260__ $$b
000009538 506__ $$arestricted
000009538 520__ $$2eng$$aPounding between adjacent bridge decks during severe earthquake may result in significant structural damage or even collapse of the decks. One of the most effective methods to avoid such damage is to provide adequate separation distance between bridge decks. This paper investigates the required separation distance between two adjacent continuous bridge decks which are connected by a modular expansion joint (MEJ). Each bridge deck is modeled as a lumped mass supported on an isolating bearing. Both the bearings and the elastic piers are modeled as spring-damping elements. Spatial ground motions are modeled by the filtered Tajimi-Kanai power spectral density function and an empirical coherency loss function. Site amplification effect is included by a transfer function derived from one dimensional wave propagation theory. Stochastic response equations of the adjacent bridge decks are formulated. Parametric studies are carried out to study the required separation distance between the two adjacent decks to avoid pounding. The effect of non-uniform ground excitation, site amplification, and different parameters of bearing on the required separation distance are investigated. Comparisons and discussions are made based on the numerical results.

000009538 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009538 653__ $$arequired separation distance, spatial variation, site effect, bearing stiffness 

000009538 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009538 720__ $$aBi, Kai-Ming$$iHao, Hong$$iChouw, Nawawi
000009538 8560_ $$ffischerc@itam.cas.cz
000009538 8564_ $$s137742$$uhttps://invenio.itam.cas.cz/record/9538/files/03-03-0026.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 03-03-0026.
000009538 962__ $$r9324
000009538 980__ $$aPAPER