# Seismic Response Analysis of Reinforced Concrete Frame Structures Considering Slope Effects
## 3 Analysis of Structural Response under Near-Field Earthquake
### Analysis of Structural Deformation  
Table 5 indicates the peak displacement of the top floor and the maximum inter-story displacement angle of the structure under the action of 20 seismic waves. As shown in Table 5, the peak displacement of the top floor of the structure differed under different ground motions, as did the maximum inter-story displacement angle of the structure. It is not clear how the slope affected the peak value of the top floor displacement and the maximum inter-story displacement angle. The slope ratio had different effects \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Condition** & **Name** & **Observation Station** & **Moment Magnitude** & **Fault Distance/km** \\ \hline
1 & “Imperial Valley-06” & “El Centro-Melband Geot. & 6.53 & 0.07 \\ Array” & & & \\
2 & “Iprinia\_Italy-01” & “Sturmo (STN)” & 6.9 & 10.84 \\
3 & “Superstition Hills-02” & “Kombloom Road (temp)” & 6.54 & 18.48 \\
4 & “Loma Prieta” & “Gilroy-Historic Bldg.” & 6.93 & 10.97 \\
5 & “Loma Prieta” & “Saratoga-Aloha Ave” & 6.93 & 8.5 \\
6 & “Cape Mendocino” & “Petrolia” & 7.01 & 8.18 \\
7 & “Northridge-01” & “Newhall-W Pico Canyon Rd.” & 6.69 & 5.48 \\
8 & “Kocaeli, Turkey” & “Yarimica” & 7.51 & 4.83 \\
9 & “Chi-Chi\_ Taiwan” & “CHY024” & 7.62 & 9.62 \\
10 & “Chi-Chi\_ Taiwan” & “TCU049” & 7.62 & 3.76 \\
11 & “Chi-Chi\_ Taiwan” & “TCU063” & 7.62 & 9.78 \\
12 & “Denali\_ Alaska” & “TAPS Pump Station \#10” & 7.9 & 2.74 \\
13 & “Cape Mendocino” & “Centerville Beach\_ Naval Fac” & 7.01 & 18.31 \\
14 & “Parkfield-02\_ CA” & “PARKFIELD-EADES” & 6 & 2.85 \\
15 & “Parkfield-02\_ CA” & “Parkfield-Cholome 3E” & 6 & 5.55 \\
16 & “Parkfield-02\_ CA” & “Parkfield-Fault Zone 12” & 6 & 2.65 \\
17 & “Monteregr\_ Yugoslavia” & “Bar-Skuppising Orstine” & 7.1 & 6.98 \\
18 & “L’Aquila\_ Italy” & “L’Aquila\_V. Aterno-Centro & 6.3 & 6.27 \\
19 & “Chuetsu-oki\_ Japan” & “Joetsu Kakizakku Kakizaki” & 6.8 & 11.94 \\
20 & “Darfield\_ New Zealand” & “DSLC” & 7 & 8.46 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Near-site vibration records. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Condition**} & \multicolumn{3}{c}{**Top Displacement/mm**} & **Maximum Inter-Story Displacement Angle** \\ \cline{2-6}  & **1:1** & **1:2** & **No Slope** & **1:1** & **1:2** & **No Slope** \\ \hline
1 & 88.6431 & 87.2133 & 85.0686 & 0.005162 & 0.005030 & 0.005255 \\
2 & 86.0306 & 81.3623 & 91.7378 & 0.005043 & 0.004846 & 0.005442 \\
3 & 121.0670 & 119.0080 & 120.2630 & 0.007318 & 0.0072  
on the story drift ratio under condition 6 and condition 18. Therefore, this study mainly conducted a comparative analysis of the structural response under the two conditions. Figure 7 shows, respectively, the time history curve of the earthquake wave's acceleration of conditions 6 and 18. Figure 8 shows the change curves of structures' story drift ratio with the change of floor height under conditions 6 and 18. It can be seen from the figures that the difference in ground motion records significantly influenced the story drift ratio of the structure. However, the change rules were similar. That is, as the stories increased, the story drift ratio decreased first, then increased, and finally decreased. The maximum inter-story displacement angle of the structure appeared on the fourth or fifth floor. Next, the impact of the slope on the inter-story displacement angle of the structure was analyzed based on the results of specific seismic actions. Under condition 6, the story drift ratio of the structure without the slope was the largest, and the story drift ratio of the structure with the 1:2 slope ratio was the smallest. In the fourth layer, the difference in the story drift ratio of the three structures was the most significant. Under condition 18, the slope ratio had different effects on the story drift ratio. The positions of the maximum inter-story displacement angle of the three structures were different.