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.