000004883 001__ 4883
000004883 005__ 20141119144601.0
000004883 04107 $$aeng
000004883 046__ $$k2002-06-02
000004883 100__ $$aGucunski, Nenad
000004883 24500 $$aPAVEMENT DYNAMIC RESPONSE BY STIFFNESS MATRIX APPROACH

000004883 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004883 260__ $$bColumbia University in the City of New York
000004883 506__ $$arestricted
000004883 520__ $$2eng$$aThe background and application of the stiffness matrix approach in the dynamic analysis of pavements and other layered systems is presented. The stiffness matrix approach involves a triple transformation of the problem. The first transformation is transformation of loading from the time to the frequency domain. The second and third are spatial transformations of loading, leading to the solution of the problem in the frequencywave number domain. Finally, inverse transformations are used to return the pavement response to the original spatial-time domain. The the most important advantage of the stiffness matrix approach is that the infinity (radiation condition) of the half-space and lateral boundaries is perfectly satisfied. The other advantage is that a single 4x4 (2x2) complex stiffness matrix provides a theoretically exact description of a single pavement layer (or a half-space). The method can be used for numerous purposes: in modeling and analysis of the response of a pavement to dynamic loads, simulation of nondestructive tests like falling weight deflectometer (FWD) and wave propagatio n based tests (e.g. Spectral Analysis of Surface Waves - SASW), evaluation of dynamic characteristics of pavement systems (natural frequencies and damping characteristics), etc. The results presented include the dynamic response of pavements to wheel loads, for the purpose of prediction of vibration (deformation) levels, and to small radii circular sources, for simulation of nondestructive pavement testing.

000004883 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004883 653__ $$apavement, layered system, dynamic response, modeling, stiffness matrix, nondestructive testing, SASW, FWD

000004883 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004883 720__ $$aGucunski, Nenad$$iMaher, Ali
000004883 8560_ $$ffischerc@itam.cas.cz
000004883 8564_ $$s1765333$$uhttps://invenio.itam.cas.cz/record/4883/files/486.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004883 962__ $$r4594
000004883 980__ $$aPAPER