TY - JOUR ID - 2422 TI - SEISMIC PERFORMANCE OF SLOPES IN PSEUDO-STATIC DESIGNS WITH DIFFERENT SAFETY FACTORS JO - Iranian Journal of Science and Technology Transactions of Civil Engineering JA - IJSTC LA - en SN - 2228-6160 Y1 - 2014 PY - 2014 VL - 38 IS - C2 SP - 465 EP - 483 KW - Slope stability KW - slope KW - displacement KW - Performance KW - seismic coefficients DO - 10.22099/ijstc.2014.2422 N2 - Seismic coefficient values coupled with minimum pseudo-static safety factors are stillused for analysis where selection of seismic coefficients relies on expertise and judgment.However, safety factor approach does not give any idea about the deformations and displacementsthat are expected to occur during earthquake loading. Displacements are mostly evaluated byequations based on yield acceleration of the slope and maximum acceleration of sliding mass. Themethod based on rigid block gives co-seismic permanent slope deformation when its factor ofsafety equals 1.0, hence, there is a need to link slope displacements, seismic coefficients andpseudo-static safety factors. This will enable the designers to predict slope displacements based onselected seismic coefficients. In the present paper, slope displacements obtained for different peakground accelerations and safety factors are used to propose charts linking co-seismic slopedisplacements (D), seismic coefficients (􀝇􀯛) and pseudo-static safety factors (FS), which areimportant parameters in pseudo-static approach. This enables the 􀝇􀯛 values to be chosen based onallowable displacements instead of using judgment and expertise. Results show that 􀝇􀯛 values forany allowable displacement should be based on anticipated PGA and FS values. Subsequently,slope displacements are utilized in developing a novel displacement-based methodology to selectthe seismic coefficient which will be used to calculate the pseudo-static safety factor. UR - https://ijstc.shirazu.ac.ir/article_2422.html L1 - https://ijstc.shirazu.ac.ir/article_2422_19c4b64cd71982046acdf750ee4cf0b4.pdf ER -