A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
APPLICATION OF NON-LINEAR PUSHOVER ANALYSIS FOR SEISMIC PERFORMANCE EVALUATION OF EXISTING HIGH RISE BUILDINGS IN ETHIOPIA BY USING SAP2000 (CASE STUDY)
With the immense loss of life and property witnessed in the last couple of decades alone in various parts of the world, due to failure of structures caused by earthquakes, attention is now being given to the evaluation of the adequacy of strength in framed RC structures to resist strong ground motions. A 15-year old 4 story (8-bay and 3-frame) reinforced concrete structure has been considered in this study, which lies in Walita Sodo. Masonry infill’s have been considered as non-structural members during this entire study. Inelastic static analysis, or pushover analysis, has been the preferred method for seismic performance evaluation due to its simplicity. It is a static analysis that directly incorporates nonlinear material characteristics. Inelastic static analysis procedures include Capacity Spectrum Method, Displacement Coefficient Method and the Secant Method. The structure has been evaluated using Pushover Analysis, a non-linear static procedure, which may be considered as a series of static analysis carried out to develop a pushover curve for the building. The structure analyzed by using SAP-2000, after being designed in STAAD.Pro v8i by considering M20 concrete and Fe 250 steel reinforcement. The pushover curve is generated by pushing the top node of structure to the limiting displacement and setting appropriate performance criteria. The target displacement for the structure is derived by bi- linearization of the obtained pushover curve and subsequent use of Displacement Coefficient Method according to ASCE 41-06.The analysis is then carried out for 150% of the calculated target displacement for the structure to observe the yielding of the members and the adequacy of the structural strength. The extent of damage experienced by the structure at the target displacement is considered representation of the damage that would be experienced by the building when subjected to design level ground shaking. 4 |
APPLICATION OF NON-LINEAR PUSHOVER ANALYSIS FOR SEISMIC PERFORMANCE EVALUATION OF EXISTING HIGH RISE BUILDINGS IN ETHIOPIA BY USING SAP2000 (CASE STUDY)
With the immense loss of life and property witnessed in the last couple of decades alone in various parts of the world, due to failure of structures caused by earthquakes, attention is now being given to the evaluation of the adequacy of strength in framed RC structures to resist strong ground motions. A 15-year old 4 story (8-bay and 3-frame) reinforced concrete structure has been considered in this study, which lies in Walita Sodo. Masonry infill’s have been considered as non-structural members during this entire study. Inelastic static analysis, or pushover analysis, has been the preferred method for seismic performance evaluation due to its simplicity. It is a static analysis that directly incorporates nonlinear material characteristics. Inelastic static analysis procedures include Capacity Spectrum Method, Displacement Coefficient Method and the Secant Method. The structure has been evaluated using Pushover Analysis, a non-linear static procedure, which may be considered as a series of static analysis carried out to develop a pushover curve for the building. The structure analyzed by using SAP-2000, after being designed in STAAD.Pro v8i by considering M20 concrete and Fe 250 steel reinforcement. The pushover curve is generated by pushing the top node of structure to the limiting displacement and setting appropriate performance criteria. The target displacement for the structure is derived by bi- linearization of the obtained pushover curve and subsequent use of Displacement Coefficient Method according to ASCE 41-06.The analysis is then carried out for 150% of the calculated target displacement for the structure to observe the yielding of the members and the adequacy of the structural strength. The extent of damage experienced by the structure at the target displacement is considered representation of the damage that would be experienced by the building when subjected to design level ground shaking. 4 |
APPLICATION OF NON-LINEAR PUSHOVER ANALYSIS FOR SEISMIC PERFORMANCE EVALUATION OF EXISTING HIGH RISE BUILDINGS IN ETHIOPIA BY USING SAP2000 (CASE STUDY)
GETAHUN ENARO (author) / Dr. BORRA SURESH (Ass. Prof) (author)
2018-06-06
doi:10.20372/nadre:1547818537.49
Theses
Electronic Resource
English
DDC:
621
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