| Penulis/Author |
Ir. Ali Awaludin, S.T., M.Eng., Ph.D., IPU., ACPE. (1); Angga Fajar Setiawan, S.T., M.Eng., Ph.D. (2); Prof. Ir. Iman Satyarno, M.E., Ph.D. (3); YUSUF HAROKI (4) |
| Abstrak/Abstract |
ABSTRACTThis study aims to determine the finite element analysis of a BSPD-SHS (bi-directional shear panel damper with a squarehollow section) device, to dissipate the seismic excitation energy through the lateral relative displacement between the pier and girderof the simple support bridge. The configuration of the square hollow section is also performed for a double role, such as web paneland flange, indicating the expectations to reduce the seismic force within the lateral and longitudinal directions. In the preliminarydevelopment phase, the finite element analysis was conducted under monotonic loading, to examine the skeleton curve characteristicsand internal stress action on resisting seismic force. The characteristics of this curve include elastic stiffness, shear strength, post-yieldbehavior, and internal stress distributions. Based on the evaluation of the BSPD-SHS slenderness effect, the variation of depth-thicknessratio was considered between 25 to 67. To investigate the fitness of the theoretical shear strength formulation, two different hardeningrolesofthemetalplasticitymodelweresubsequentlycomparedinthisstudy,includingtheelastic-perfectlyplasticandisotropic/kinematictechniques. Furthermore, the effect of the restrained degree of freedom idealization on the top base plate was captured. This indicatedthat all specimens model with the restrained top base plate achieved stable post-yield stiffness. In implementing the unrestrained topbase plate, this stiffness was achieved when the web slenderness ratio equaled 25. The differences observed between the hardeningroles also generated a slight yield shear strength discrepancy. However, significant differences occurred in the post-yield shearstrength. The shear resistance proportion of the stress components was also accurately quantified with an analytical stress integra-tion. Basedontherestrainedtopbaseplate,theflangetensionfieldgeneratedasignificantcontributiontothepost-yieldshearresistance |
