FE ANALYSIS OF COMPLEX DISCONTINUOUS INFILLED FRAME DUE TO LOSS OF SOIL SUPPORT

للكاتبين

Eman A. El-Shamy, Gouda M. Attia, Hosain M. Bondok and Shymaa M.Mukhtar

Structural Eng. Dept., Faculty of Eng., Zagazig University

ABSTRACT:

In civil engineering practice, there is a variety of structures with interface discontinuities

where the assumption of rigid interconnection between the contact surfaces is questionable.

The infilling wall-frame-soil interaction problem is one of complex discontinuous and jointed

structural problems especially, the infilled frame at loss of soil support. In order to know the

realistic infilling wall and frame performance, the infilling wall, frame and underlying soil

properties are to be considered. Based on the finite and infinite element method, a computer

program is developed to model the infilled frame-soil installation by using a mix of

continuum elements and interface elements. A special nonlinear interface element permits

frictional sliding, separation, and rebounding of the infilling wall-frame interface, is

considered to model the interface between the frame and infilling wall. In this paper, many

different parameters are considered, such as the effect of coefficient of friction between

infilling wall and frame, horizontal length of loss of soil support and its location, which have

significant effect on the frame internal forces and infilling wall internal stresses. In addition to

the pervious parameters, cases of location of flexible floor, type and thickness of infilling

wall, cases of loading, and type of soil. Based on the numerical analysis by using the

developed program, the stresses and deformations in infilling wall and soil have been

obtained for the different cases with variable parameters.

اترك تعليقاً

لن يتم نشر عنوان بريدك الإلكتروني.