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| dc.contributor.author | KIBUR, ALEMAYEHU YAYEW | |
| dc.date.accessioned | 2025-03-18T07:07:21Z | |
| dc.date.available | 2025-03-18T07:07:21Z | |
| dc.date.issued | 2024-07 | |
| dc.identifier.uri | http://ir.bdu.edu.et/handle/123456789/16650 | |
| dc.description.abstract | The structural analysis for earthquake load is important to get structural behaviors for different types of bridge piers to get seismic demand resistance. The seismic performance evaluation of three types of reinforced concrete hammerhead piers, bent piers, and pier walls that have a similar superstructure to seismic zone 3 of the country is conducted. The seismic evaluations is performed by modal response spectrum dynamic analysis using CSi-Bridge v21 finite element analysis software. The deflected mode shape, the fundamental time period, the moment, the base shear force, and the pier displacements are the core findings. There is a larger pier top deflection and fundamental period for flexible pier configurations. The results show that the bent-type pier has better deflection resistance and a smaller fundamental time period than other pier types. The fundamental period of vibration and the deflection at the top of the pier in a longitudinal direction are larger for the pier wall among the three types of piers. For conventional foundation modeling without considering soil-structure interaction, the deflections occurred only at the top of the piers. Considering soil-structure interaction, the hammerhead pier has a larger foundation displacement demand in the longitudinal direction, and the pier wall has a greater transverse displacement demand. The hammerhead pier has a greater longitudinal shear demand than the other piers, but the transverse shear demand is high for the pier wall relative to the other two pier types. The longitudinal moment demand for the pier-wall and transverse moment demand for the hammerhead pier are large. Kay words: Bridge piers, Dynamic load, Response spectrum, Force, Displacement | en_US |
| dc.language.iso | en_US | en_US |
| dc.subject | Civil and Water Resource Engineering | en_US |
| dc.title | EFFECTS OF SEISMIC LOAD ON VARIOUS TYPES OF REINFORCED CONCRETE PIERS WITH INTEGRAL ABUTMENTS FOR CONTINUOUS TGIRDER REINFORCED CONCRETE BRIDGE | en_US |
| dc.type | Thesis | en_US |
