000009734 001__ 9734
000009734 005__ 20141205153148.0
000009734 04107 $$aeng
000009734 046__ $$k2008-10-12
000009734 100__ $$aChiou, Jiunn-Shyang
000009734 24500 $$aPlastic Hinge Setting for Nonlinear Pushover Analysis of Pile Foundations

000009734 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009734 260__ $$b
000009734 506__ $$arestricted
000009734 520__ $$2eng$$aFor a pile-soil system, the use of the concentrated plastic hinge method in simulating the inelastic flexural behavior of piles usually gives unsatisfactory results because the location of maximum moment in piles may vary due to the effects of soil-structure interaction. To solve this problem, this study suggests adopting a distributed plastic hinge model to trace the propagation of yielding in a pile interacted with nonlinear soils. To construct the rotational property of a plastic hinge, this paper modifies the definition of plastic curvature suggested in ATC-40. This modification is crucial for plastic hinges in simulating correctly the nonlinear deformation of a beam. Besides, to arrange distributed hinges properly, this paper proposes simple formulae to estimate the least range of plastic zone for a pile-soil system, so that the proper intervals of plastic hinges can be determined. To demonstrate the method of modeling proposed, numerical examples of a pile-soil system were analyzed using the computer program SAP2000 with distributed plastic hinge modeling. Results are in good agreement with those from ABAQUS analyses by using nonlinear elements for pile modeling.

000009734 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009734 653__ $$apile foundations, pushover analysis, material nonlinearity, plastic hinges 

000009734 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009734 720__ $$aChiou, Jiunn-Shyang$$iYang, Ho-Hsiung$$iChen, Cheng-Hsing
000009734 8560_ $$ffischerc@itam.cas.cz
000009734 8564_ $$s165531$$uhttps://invenio.itam.cas.cz/record/9734/files/14-0105.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0105.
000009734 962__ $$r9324
000009734 980__ $$aPAPER