Report - PEER - University of California, Berkeley

Figure 14 gives the analytical and experimental roof displacement time history ofCFT/BRB frame specimen obtained in the Test No. 3 and Test No. 5. respectively. Itis evident that the lateral displacements of CFT/BRB frame predicted either byOpenSees or Pisa3D are satisfactory. Table 2 shows the maximum and minimumlateral displacements of the predicted and measured response for the Test No. 2, TestNo. 3, Test No. 5 and Test No. 6, respectively. The differences between the analyticaland experimental responses are also shown in Table 2.Table 2. Roof displacement comparisons and differencesLateral Displacement (cm) Error (%)Events TEST OpenSees PISA3D OpenSees PISA3Dmax min max min max min max min max minTest No.2 (50/50) 4.9 -7.0 5.9 -7.4 5.9 -7.7 17 5 17 9Test No.3 (10/50-I) 11.7 -17 11.3 -15.5 7.5 -17.4 4 10 56 2Test No.5 (2/50) 20.8 -12.9 21.5 -13.8 21.8 -10.8 3 7 5 19Test No.6 (10/50-II) 18 -13.2 15.3 -10 16.8 -7.1 18 32 7 86RF Disp.(mm)RF Disp.(mm)2001000TEST OpenSees PISA3D-100Phase1, Test No.3, LP89g04(10/50)-2000 5 10 15 20 25 30 35 40Time (sec)300150 Phase1, Test No.5, TCU082(2/50) TEST OpenSees PISA3D0-150-3000 5 10 15 20 25 30 35 40 45Time (sec)Figure 14. Roof displacement time history in Tests No. 3 and No. 5.Fig. 11 and Fig.15 show that the predictions agree extremely well with theexperimental story shear time history response and the peak story shears. As shown inTable 3, it’s found that the maximum story shear differences between the predictionand the test result are only 19% and 13% for OpenSees and PISA3D, respectively.Table 3. Base shear comparisonStory Shear (10 3 kN) Error (%)Events TEST OpenSees PISA3D OpenSees PISA3Dmax Min max min max min max min max minTest No.3 (10/50-I) 2.7 -3.1 2.4 -2.6 -2.8 2.4 13 19 13 11Test No.5 (2/50) 3.6 -3.3 3.3 -3.4 3.4 -3 9 3 6 10253