Performance evaluation of high-rise apartment building using pushover analysis

Abstract

Indonesia is a developing country that is experiencing rapid development growth. According to the Central Statistics Agency, in 2020 the population of Indonesia will be 270.20 million people. The increase in population from year-to-year results in increasingly narrow lands for development. Therefore, developers and businesspeople make the best use of this opportunity in the world of construction by carrying out developments, including high-rise apartments. As an earthquake-prone area, the planning process for buildings, especially tall buildings in Indonesia, must be carried out very carefully by considering the strength of the structure against high-intensity earthquake loads. Risk reduction strategies can be implemented through building vulnerability assessment by checking structural performance using pushover analysis. In this study, the performance of a 32-storey apartment building was examined using the pushover analysis method. The resulting calculation is that the performance of the structure is 0.0023 for the lateral direction and 0.0113 for the transverse direction. Through the ATC 40 method it is known that the result of structural performance is Damage Control, where after an earthquake the building is still habitable.

Comparison of building structure performance with masonry and without masonry

“…These lateral forces are often the most critical aspect of seismic loading because they can lead to structural deformation, displacement, and damage. Pushover analysis was performed with a target displacement of 1/50 of the building height based on the terms and conditions of inter-story allowable deviation [5]. The first stage of pushover analysis was conducted in both the x-axis and y-axis directions to obtain the seismic capacity of each model.…”

“…While the capacity curve is a curve of the relationship between the base shear force (Vb) and the displacement of the roof floor point (∆rooftop) which is the ability of the structure to the load that occurs. The performance point is obtained when the capacity of the structure can handle the desired response spectrum demand [5]. The capacity spectrum method is a method where finding the performance point is done by reducing the elastic response spectrum to intersect with the capacity curve in the Acceleration Displacement Response Spectra (ADRS) spectral coordinates as shown in Figure . 2.…”

Evaluation on Effective Dimensions of Base Isolators Applied at Existing RC Building due to Earthquakes

“…Base isolator will Evaluation on Effective Dimensions of Base Isolators Applied at Existing RC Building due to Earthquakes make the displacement of the structure will be lower (Gunawan et al, 2020). The level of structural performance in controlling damage due to earthquake loads has arranged in FEMA 440 and ATC-40 (Masrilayanti et al, 2023), and also considered by ASCE 14-13 (Enggartiasto et al, 2023).…”