Tinjauan Penyebab Permasalahan dan Analisis Struktur Serta Perkuatan pada Pembangunan Aula dan Perpustakaan Kampus Universitas Imelda Medan

Abstract

The progress of human civilization as well as the rapidly increase in the growth of the human population has encouraged the widespread development of infrastructure to fullfil human needs. As the number of the infrastructure bulit grew, the people involved in infrastructure development began to set aside the priority of the infrastructure being built, resulting in development that did not comply with the applicable requirements. In addition to ways of building that are no longer effective, the thing that contributes to the damage to buildings is nature, both earthquake and other natural disasters so we need a strengthening methods which is a way to strengthened the bulding without having to tear down the bulding. This research begins with data collection in the field both visually and with tools. After the field data is obtained, the the data will be prepared theoretically for further calculations. The modelling of the roof structure with helping by SAP 2000 application and the bulding with ETABS 17. Through this modeling it will be ssen hpw to check building behavior, the on structural failure, then theoretical calculations are carried out to get any structural elements that cannot withstand loads within the capacity of the builders lacking and not accordance with SNI 2847 – 2019. Once it is known which structural elements have less capacity, these elements will be strengthened so that those structural elements get support in bearing the load. The strengthening method used is concrete jacketing for beams. Column elements aren’t strengthened because the column can hold the axial-bending and shear capacities, but for column code 1 and 2 can’t be called SRPMK because the reinforcement ratio is less than should be. The results of theoretical calculations show that for the beam elements the amount of rebar installed is not strong enough to withstand bending and shear forces. In the main beam elements to support the bending moment, it is necessary to add 10D16 rebar for all spans in support area with 5D16 at the left and right of the beams, then 5D16 rebar for all spans in field area at the bottom of the beams. In the joist beams to support bending moment, it is necessary to add 13D16 rebar in the support area for all spans with 5D16 at the left and right of the beams, then 5D16 rebar for field area in all spans at the bottom of the beams. The addition flextural rebar is carried out on the left, right and bottom of the beam so that it can accommodate the shear forces of the beam as well.