000004647 001__ 4647
000004647 005__ 20141119144541.0
000004647 04107 $$aeng
000004647 046__ $$k2002-06-02
000004647 100__ $$aKaewkulchai, Griengsak
000004647 24500 $$aDYNAMIC PROGRESSIVE COLLAPSE OF FRAME STRUCTURES

000004647 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004647 260__ $$bColumbia University in the City of New York
000004647 506__ $$arestricted
000004647 520__ $$2eng$$aCurrent research on the dynamic progressive collapse of frame structures is presented in this paper. Unlike previous studies that have approached the problem without consideration of inertial effects, our research addresses the importance of dynamic load redistribution. For the present study, a computer program has been developed for analyzing dynamic progressive collapse of 2-D frame structures. Newmark’s method, in conjunction with Newton-Raphson iterations, is used for computing system response as a function of time. Both geometric and material nonlinearities are considered. A damage index is also computed to account for the effects of strength and stiffness degradation, and it is used to determine the onset of member failure. Following member failure, the analysis continues through the use of a modified member stiffness procedure with releases of end forces. The paper concludes with a discussion of other important factors related to progressive collapse including the prediction of impact forces that may result after a member has failed and strikes a portion of the remaining structure.

000004647 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004647 653__ $$astructural dynamics, progressive collapse, building collapse, damage

000004647 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004647 720__ $$aKaewkulchai, Griengsak$$iWilliamson, Eric B.
000004647 8560_ $$ffischerc@itam.cas.cz
000004647 8564_ $$s263105$$uhttps://invenio.itam.cas.cz/record/4647/files/111.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004647 962__ $$r4594
000004647 980__ $$aPAPER