Abstract
The existing piloti buildings with supported reinforced concrete columns were very vulnerable to earthquake ground motions. Since piloti buildings are composed of the wall structure system in the upper part of the building and a relatively flexible beam-column system in the lower part of the building, piloti buildings are structurally vulnerable in the event of large transverse vibrations and cause collapses during an earthquake. This study aims to analyze the dynamic response behavior and capacity estimation of piloti buildings with a steel reinforced concrete column system on the first floor. To investigate the earthquake response of piloti buildings, the time history and pushover increment analyses are used to analyze the collapse pattern and capacity estimation of piloti buildings. The present piloti buildings constructed by reinforced concrete experienced most of the deformation on the first floor when an earthquake occurred, as shown in the yielding fracture of the columns on the first floor. From the results of this study, the piloti buildings supported by SRC reinforced concrete columns have enough strength and safety for a five-story building, but also have the required strength and safety for a ten-story building.
Highlights
The design standards for piloti buildings were recently strengthened and studies of earthquake performance estimation were conducted actively, one must study the dynamic response characteristics of the structures to various seismic ground waves during the structural design of piloti buildings
Since the wall system in the upper part of the buildings is rigid in structure and the lower part of the buildings is supported as a flexible beam-column system, piloti buildings are structurally vulnerable in the event of large transverse vibrations by earthquakes and are representative examples of building collapses due to an earthquake
This study evaluated the dynamic response and seismic performance using the time history analysis and the pushover analysis for the El Centro earthquake and the Mexico earthquake in the piloti buildings supported by supported reinforced concrete (SRC) columns to ensure structural stability against earthquakes
Summary
The design standards for piloti buildings were recently strengthened and studies of earthquake performance estimation were conducted actively, one must study the dynamic response characteristics of the structures to various seismic ground waves during the structural design of piloti buildings. This stems from serve damages occurring in the columns of low-rise buildings considered seismic design and in other structural members. This study evaluated the dynamic response and seismic performance using the time history analysis and the pushover analysis for the El Centro earthquake and the Mexico earthquake in the piloti buildings supported by SRC columns to ensure structural stability against earthquakes. The pushover analysis analyzed the resistance capability of the structural members of piloti buildings to earthquakes
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