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The behavior of PBPD frame is quite stable, and drift is considerably less as compared with the baseline frame.
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It shows that the behavior of PBPD frames is quite stable and residual drift is considerably less as compared with the baseline frames.
Each plot shows a response comparison between the baseline frame and PBPD frame.
The results obtained by nonlinear time-history analyses shown that the PBPD frames compared with Baseline frames fulfilled all the performance objectives as targeted in design, i.e., interstory drifts and residual story drifts were, respectively, less than 1.5 and 0.5 % according to FEMA-356.
On the other hand, in 6 story baseline frame, the maximum value of interstory drift ratio in Borrego record is 5.1 % in baseline frame, but in PBPD frame, it is 2.12 % in Imperial record.
Open image in new window Fig. 7 Story drift time histories for both 6-story PBPD frame and baseline frame (the Loma record) baseline frame PBPDframe.
Figure 9 shows the residual drift ratio of baseline frame and PBPD frame under eleven records.
In 9-story frame, the maximum value of interstory drift in baseline frame is 5.62 % in Borrego record but in PBPD frame, it is 2.6 % in Borrego record.
Figure 10 shows the formation of plastic hinges in 9 story baseline frame and PBPD frame under Loma record.
a PBPD frame, b baseline frame.
The way the piano dances with the baseline is so gorgeous.
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