Analyses of axial compression ratio of walls in Unreinforced Masonry Structures

摘要

Axial compression ratio of Walls in Unreinforced Masonry Structures is studied based on a 7-story concrete small block building and a 7-story common brick building with FEM. Factors that influence the axial compression ratio are analyzed. The axial compression ratio of walls in unreinforced masonry structures is compared with that of walls in concrete shear wall structures and reinforced masonry structures. Besides, Characteristic value of axial compression ratio is calculated. The results shows that axial compression ratio ranges from 0.06 to 0.50 and is associated with story number, material, load, wall width and plane layout of structures etc. Characteristic value of axial compression ratio ranges from 0.04 to 0.30 which is about 60 percent of its design value.