Ahmad A. Hamid1 and Franklin L. Moon2 and Ehsan Minaie3
- Professor, Civil, Architectural and Environmental Engineering Department, Drexel University Philadelphia, USA, hamidaa@drexel.edu
- Assistant Professor, Civil, Architectural and Environmental Engineering Department, Drexel University Philadelphia, USA, flm72@drexel.edu
- D. Candidate, Department of Civil, Architectural and Environmental Engineering, Drexel University Philadelphia, PA, 19104, USA, minaie@drexel.edu
ABSTRACT
Partially grouted reinforced concrete masonry is a common building system in the eastern US. Past and current research on masonry components has indicated a significant difference in behaviour of partially and fully grouted reinforced concrete masonry. Current codes’ design provisions for reinforced masonry shear walls are based on fully grouted construction. Thereby, these provisions may not be applicable to partially grouted masonry. This paper presents a review of past research and challenges in performance-based design of partially reinforced concrete masonry. Past and current research on partially grouted masonry assemblages and wall component at Drexel University are briefly presented. Recent test results of assemblages and walls indicates that the behaviour of partially grouted reinforced masonry walls are different from that for fully grouted walls and that the shear strength of partially grouted walls are significantly less than that of similar fully grouted walls. Future research at Drexel will include testing of 1/3 scale two story partially grouted reinforced masonry wall-bearing masonry building. This building test will allow investigating the effect of flanges, wall openings and interaction between perpendicular walls. It is hoped that the proposed system-level research will provide a realistic prediction of the seismic performance and will lead to a more accurate seismic codes’ design provisions for reinforced masonry shear wall buildings.
KEYWORDS: concrete masonry, partially grouted masonry, shear walls, seismic performance, system-level research, reduced scale modelling of masonry
A6-3
