Structural Performance Evaluation of Anwar Medika Hospital Building with Pushover Method Using SNI 1726:2019

Abstract

This research aims to evaluate the performance of the building structure using the pushover analysis method on Anwar Medika hospital building in Sidoarjo City. The pushover method is performed by applying static horizontal earthquake loads gradually to the building structure model. This research was conducted by analyzing the capacity curve, performance point, and seismic performance level of the building structure with the SAP 2000 program. The building data used is the shop drawing of Anwar Medika hospital building with certain specifications such as building area, concrete quality, and steel quality. The analysis process includes deviation control, Load Case Pushover Analysis generation, plastic joint definition, pushover static analysis, performance level determination, and result evaluation. Assumptions in modeling include the use of columns and beams as Frames, floor slabs as Shell-Thin, and shear walls as Shell-Thick. The analysis results provide information on capacity curves, plastic joint distribution schemes, and performance points to assess the performance of structures against lateral loads such as earthquakes. Adjustments to the latest standards such as SNI 1726:2019 and SNI 2847:2019 are also made in the evaluation of building performance. In addition, this research also discusses the calculation of shear force, nominal shear, and shear reinforcement at the beam-column relationship, as well as the control of inter-level deviation. The results of this research are expected to provide a better understanding of the pushover method and become a guideline for further research in the field of building structure performance evaluation. From the results of the pushover analysis, it was found that the performance level of the building structure included the DC (Damage Control) category on both axes with a total drift value of 277.114 mm in the X axis and a total drift value of 297.903 mm in the Y axis.