NEHRP Clearinghouse

Title
Computational Strategies for Frames with Infill Walls: Discrete and Smeared Crack Analyses and Seismic Fragility.
File
PB98153414.pdf
Author(s)
Mosalam, K. M.; White, R. N.; Gergely, P.
Source
National Science Foundation, Arlington, VA., December 31, 1997, 188 p.
Identifying Number(s)
NCEER-97-0021
Abstract
Several computational strategies for masonry structures, and particularly for frames with masonry infills, are presented. Three levels of details for the computational models with explored: Micro-modeling of masonry is presented first where the mortar joints were modeled using interface elements. These models may be considered of an intermediate level of detail (meso-modeling) where damage mechanisms are accounted for in the form of smeared cracking using homogeneous properties for masonry; and (maco-modeling) is special for masonry infill walls where equivalent nonlinear truss elements are used to replace the effect of the walls on the bounding frames.
Keywords
; Masonry; Cracking (Fracturing); Seismic design; Mathematical models; Walls; Concrete blocks; Buildings; Earthquake engineering; Finite element analysis