# Fatigue Assessment of Prestressed Concrete Slab-Between-Girder Bridges
## 3 Results  
### Results of the Experiments  
The complete results of all the experiments can be consulted in Reference [5] for the static tests on the first setup, in Reference [34] for the fatigue tests on the first setup, and in Reference [37] for the tests on the second setup. In this study, only the results that were relevant for the assessment of the case study bridge were summarized. Figure 5: Overview of the test setup, showing setup 1 with the new middle deck. Table 2 gives an overview of the relevant static tests from the first setup (BB tests) and the second setup (FAT tests). For the BB series, all the experiments were consecutively numbered. For the FAT series, the test number provides information about the experiment: FAT (fatigue testing series of experiments on setup 2), followed by the test number, and then the S (static test) or D (dynamic test), and 1 (load applied through one loading plate representing a single wheel load) or 2 (load applied through two loading plates representing a double wheel load). The table gives the size of the loading plate used for testing, the load at failure \(P_{\text{max}}\), the age of the concrete of the slab at the moment of testing, and the concrete cube compressive strength \(f_{cm,cube}\) determined at the day of testing the slab. Table 3 gives an overview of the fatigue tests. Here, all the tests were considered relevant for the fatigue assessment, since all the fatigue tests were used to derive the Wohler curves. The test number is given, with BB being the experiments on the first setup and FAT being the experiments on the second setup. Then, the number of the setup was listed, with \"1, new\" for the experiments that were carried out on the newly cast deck in the first setup. Next, the size of the loading plate used to apply the load on the slab was reported, followed by the \"wheel\", which can be S (single wheel print) or D (double wheel print). Then, the upper load level used in the test, \(F/P_{\text{max}}\) (with \(P_{\text{max}}\) from the static test) was given, as well as \(N\), the number of cycles. For the variable amplitude fatigue tests, \(N\) was the number of cycles for the associated load level \(F/P_{\text{max}}\). After \(N\) cycles at load level \(F/P_{\text{max}}\), given in one row of Table 3, the test was continued with \(N\) cycles at another load level \(F/P_{\text{max}}\), given in the next row. The column \"age\" gives the age of the slab at the age of testing, and \(f_{cm,cube}\) gives the associated cube concrete compressive strength. For fatigue tests that lasted several days, a range of ages was given in the column \"age\", indicating the age of the concrete in the slab at the beginning of testing and at the end of testing. Similarly, a range of compressive strengths was given for \(f_{cm,cube}\), representing the strength determined at the beginning and the end of testing. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Test Number** & \begin{tabular}{c} **Size Load** \\ **(mm \(\times\) mm)** \\ \end{tabular} & \begin{tabular}{c} **\(P_{\text{max}}\)** \\ **(kN)** \\ \end{tabular} & \
\begin{tabular}{c} **Age** \\ **(days)** \\ \end{tabular} &
\begin{tabular}{c} \(f_{cm,cube}\)** \\ **(MPa)** \\ \end{tabular} \\ \hline BB1 & 200 \(\times\) 200 & 348.7 & 96 & 80.0 \\ BB2 & 200 \(\times\) 200 & 321.4 & 99 & 79.7 \\ BB7 & 200 \(\times\) 200 & 345.9 & 127 & 80.8 \\ BB19 & 200 \(\times\) 200 & 317.8 & 223 & 79.9 \\ FAT1S1 & 150 \(\times\) 115 & 347.8 & 94 & 82.2 \\ FAT7S1 & 150 \(\times\) 115 & 393.7 & 240 & 88.8 \\ FAT8S2 & 2 of 150 \(\times\) 115 & 646.1 & 245 & 88.6 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Overview of the static tests used for assessment of the case study bridge. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Test Number** & \begin{tabular}{c} **Size Load** \\ **(mm \(\times\) mm)** \\ \end{tabular}  & \begin{tabular}{c} **Wheel** \\ **(mm \(\times\) mm)** \\ \end{tabular}  & \begin{tabular}{c} **\(F/P_{\text{max}}\)** \\ **(km)** \\ \end{tabular}  & \