Modeling Time-Dependent Deformations of a Masonry Wall Post-Tensioned with CFRP


  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Modeling Time-Dependent Deformations of a Masonry Wall Post-Tensioned with CFRP

Author(s): M.M. Reda Taha, K.-K. Choi, M. Tait, and S.L. Lissel

Publication: Special Publication

Volume: 245


Appears on pages(s): 37-56

Keywords: creep; FE analysis; fiber-reinforced polymers (FRP); masonry; masonry post-tensioning

Date: 4/1/2007

This paper summarizes the experimental and analytical research work for simulating a recently built retaining masonry wall post-tensioned with carbon fiber reinforced polymer (CFRP) tendons. A group of creep and shrinkage experiments on masonry prisms similar to that used in the masonry diaphragm wall is discussed. A theoretical investigation using numerical models to describe the time-dependent deformations of the masonry diaphragm wall was performed. Creep coefficients based on the experiments are compared to common creep values based on other research investigations and on well established code models. A finite element model of the masonry diaphragm wall was developed incorporating the non-linear time-dependent properties of masonry to investigate the long-term deformations and stress redistribution in the walls over time. Deformations of the walls are compared to observations from a continuous monitoring system observing the lateral deformations and strains and stresses of the wall.