Spectral displacement (SD) of banda aceh’s soft soil for seismic vulnerability assessment

Abstract

Reliable spectral displacement (SD) in a wide range of response periods is crucial in seismic vulnerability assessment for Banda Aceh-Indonesia as the city is founded on a thick-soft soil. This SD is excellent for estimating building drift ratio from which the vulnerability of building is assessed. SD can be obtained from conversion of the acceleration spectra (converted SD) and site response analysis (analyzed SD). In this paper, both converted- and analysed-SDs are developed for Banda Aceh’s soft soil case using three historical seismic events of the 2012 Simeulue II, the 2013 Mane-Geumpang, and the 2013 Bener Meriah earthquakes and three soil models from which acceleration-displacement response spectrum (ADRS) of Banda Aceh’s soft soil is proposed. This proposed ADRS is compared to the generic response spectra of Centre of Research and Development of Housing and Settlement (PUSKIM) Indonesia. It can be concluded that the Proposed ADRSs can be used as another source in determining the performance of a building beside the PUSKIM ADRSs. Furthermore, the developed SDs were used to calculate the drift of 2-, 3-, and 4-storey typical shop-house buildings at Banda Aceh-Indonesia.

Analisis Kerentanan Struktur Gedung C Rumah Sakit Rujukan Regional Kota Langsa Menggunakan Metode Pushover Analysis

“…Metode spektrum kapasitas menyajikan secara grafis dua buah grafik yang disebut spektrum kapasitas (capacity spectrum) yang menggambarkan kapasitas struktur berupa hubungan gaya geser dasar (base shear) dengan displacement lateral struktur (biasanya ditetapkan di puncak bangunan) yang disebut kurva kapasitas (capacity curve), dan spectrum demand yang menggambarkan besarnya demand (tuntutan kinerja) akibat beban gempa dengan periode ulang tertentu. Kurva teresebut diplotkan dalam format acceleration displacement response pectrum (ADRS) (Saidi et al, 2018).…”

Cost Estimation of Structural Components of a Building by considering the Seismic Load on Different Regions

“…e magnitude of the potential seismic load that may be received by a building is determined by some interrelated factors. Seismicity around the construction site can determine earthquake disturbances; characteristics of soil movements, [7] such as amplitude, duration, and predominant period; and structural dynamic response characteristics, such as natural periods, attenuation factors, and ductility factors [8,9]. Building dimensions in some locations may be affected differently by seismic loads.…”