Assessment of building structure block D of RS BMC Padang

Abstract

Padang city is the capital of West Sumatra province which is on the west side of the island of Sumatra, is an earthquake-prone area, it is near the confluence of the Asian Euro and Indo-Australia tectonic plates. In the last two decades, there have been two large earthquakes in West Sumatra, on March 6, 2007 (5.8 SR) and September 30, 2009 (7.6 SR). The earthquake on September 30, 2009 has caused severe damage in several areas in West Sumatra such as Padang Pariaman Regency, Padang City, Pesisir Selatan Regency, Pariaman City, Bukittinggi City, Padangpanjang City, Agam Regency, Solok City, and West Pasaman Regency. According to Satkorlak PB data, as many as 1,117 people were killed, the serious injuries reached 1,214 people, light injuries 1,688 people, and the missing 1 person. A total of 135,448 homes were severely damaged, 65,380 houses were moderately damaged, and 78,604 houses were lightly damaged. The earthquake has also caused dozens of multi-story buildings in Padang City to suffer damage, lightly, moderately, and severely damaged and some buildings were collapsed. Block D of RS BMC is one of the buildings of RS BMC Padang, which was built in early 2000. Design of the building structure of Block D of RS BMC used SNI 03-2847-1991 and SNI 03-1726-1989. Nowadays, the newest SNI is SNI 03-2847-2019 for reinforced concrete and SNI 03-1726-2019 for earthquake designs. The paper discusses the assessment of the building structure of block D of RS BMC using the new SNI 03-1726-2019 and SNI 03-2847-2019. The earthquake load used is a dynamic earthquake load using Padang city spectrum response and structural analysis using SAP2000 v.14 software. The analysis results obtained, structural elements of columns, beams, and plates are still able to resist the design loads according to the new SNI. The inter-story drift of floors, the effect of P-delta, the vertical irregularities of buildings, the concept of strong column weak beam, and mass participation are still following the newest SNI.