Page 110 - JCAU-7-3
P. 110
Journal of Chinese
Architecture and Urbanism Seismic performance of reinforced SSPWs
A B
Figure 10. Hysteresis curve of a steel shear wall reinforced with cross stiffeners in (A) perpendicular (Stiff-X-P) and (B) horizontal (Stiff-X-H) configurations
Source: Graphs by the authors.
A B
Figure 11. Hysteresis curve of a steel shear wall reinforced with circular stiffeners in (A) perpendicular (Stiff-C-P) and (B) horizontal (Stiff-C-H) configurations
Source: Graphs by the authors.
50000
45000
40000
35000
KN.m 30000
25000
20000
15000
10000
5000
0
1 2 3 4
stiff-C-H 3686 10010.2 18489.3 27272.2
stiff-X-P 3282.5 15338 28964.4 44530.4
stiff-X-H 3103.1 9976.8 20005.4 24284.9
stiff-XC-H 4401.9 15256.4 26366.7 35205
stiff-C-P 2745.5 7687.9 14973.8 23497.8
Figure 12. Hysteresis curve of a combined steel shear wall reinforced with
cross and circular stiffeners in a horizontal configuration (Stiff-XC-H) Figure 13. Energy dissipation in 1-story frame models
Source: Graph by the authors. Source: Graph by the authors.
demonstrates the calculation process used to determine 3.3. Failure pattern in 1-story frames
the area enclosed by the hysteresis loops for each cycle, Non-linear analysis using FEM requires a yield criterion,
representing the energy dissipation capacity of each
stiffening system model. Based on Figure 13, the overall which is defined as a function of multi-axial stress
energy dissipation capacity of cross stiffeners is greater variables. This function, known as the yield limit,
than that of circular reinforcements, primarily due to determines the onset of material yielding. One of the most
the higher stiffness of cross configurations compared well-known yield criteria is the von Mises yield criterion,
to circular counterparts. Furthermore, the specimens which is widely used due to its mathematical simplicity
reinforced with cross stiffeners demonstrate improved and effectiveness in predicting failure. The von Mises yield
pinching behavior. criterion states that a material will yield when its von Mises
Volume 7 Issue 3 (2025) 8 https://doi.org/10.36922/jcau.5781
