The analysis of flexure hinge is performed then the maximum displacement amplification ratio of structure is obtained by optimization through analytic formulas, where the geometrical parameters of structure are selected as design variables.
However, yield displacement, maximum displacement, and ductility ratio of sagae connection did not show a consistent trend with an increment of size.
The displacement ductility ratio is defined as the ratio of maximum displacement recorded prior to exceeding 20% strength decay under cyclic loading, to the yield displacement. Figure 4 depicts the definition of the displacement ductility ratio and equation number one may derive it.
The results obtained show no displacement ratio or maximum displacement dependence.
We used 2D seismic, well logs and 3D gravity modeling to analyze faults that constitute the rift boundary and determine their maximum displacement (Dmax) and length (L) ratio in the Potiguar Rift.
For this purpose, an eight-story concrete frame subjected to 30 different earthquake records is studied with the trilinear idealization model, and the damage measures, important for the seismic vulnerability of buildings, such as the maximum displacement and the interstory drift ratio, are considered.
The ductility of a structure is the ratio between the maximum displacement of one of its representative points and the maximum displacement of the same point.
The bilinear curve gives a behavior factor that is defined as the ratio between the maximum displacement and the yielding displacement equal to 1.34, lower than the value suggested by the Italian code (NTC 08).
The results obtained by the proposed method were also compared with the currently most commonly used method which wrongly assumes that the static flexibility of a tested system can be approximated with a ratio of the maximum displacement to the maximum load, measured in the impact FWD test.
Ratios of approximate to exact maximum displacement corresponding to each EL method are averaged over the considered ground motions, and the standard deviation of investigated ratios is also calculated to measure the degree of dispersion.
