PSI - Issue 33

Anas Ibraheem et al. / Procedia Structural Integrity 33 (2021) 942–953 Anas Ibraheem, Yulia Pronina / Structural Integrity Procedia 00 (2019) 000–000

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is 31.05 MPa, Poison’s ratio is 0.5, stiff stratum depth is 5m, void ratio is 2.5 %, recompression index is 0.03, compression index is 0.3, pore water pressure parameter is 0.35. Figure 6 shows the footings distribution at the base of the building (the dimensions of the footings were calculated according to the standards of American code ACI 318M).

Fig. 6. The footings locations and dimensions at the base of the building.

We selected a beam located in elevation 1 of the building, (the beam is in elevation 1, on the first floor over the selected footings shown in Fig. 6). We analyzed and designed the beam in 3 cases (these cases are an option within the program):  Case 1 without taking into account the effect of settlements;  Case 2 taking into account the effect of settlements � only;  Case 3 taking into account the effect of settlements � and � . The program performs the analysis and calculates the settlements ( � ) first, and then it repeats the analysis taking into account the effect of the settlements ( � ) to calculate the settlements ( � ). And then it performs the analysis taking into account the effect of ( � ) and ( � ) together. The results are shown in Table 3 where the designing load combination is 1.4* DEAD load pattern and SETTLEMENT load pattern. Table 3. Settlements (mm) at elevation 1 in the foundations located under the selected beam Settlement type The grid line name 1-A 1-B 1-C 1-D 1.8 2.0 2.1 1.7 + 41.5 45.1 45.9 39.5