Abstract
The infrastructure, existing in Sudan, is mostly not structured or designed to resist seismic forces accordingly. The study investigated the seismic damage of a 5 storey existing reinforced concrete building in Khartoum, Sudan. Three performance levels were considered in the study, which included immediate occupancy, life safety, and collapse prevention. The gravity push was carried out using force control method and lateral push with displacement control, using SAP2000. Pushover analysis produces push curve, consisting of capacity spectrum, demand spectrum, and performance point. It showed the performance level of building components along with maximum base shear carrying capacity. It has been observed that demand curve intersected the capacity curve between the points B and C at the X direction that is life safety level; and between the points B and C at the Y direction that is life safety and collapse prevention level. Therefore, some building elements are needed to be strengthened.
Highlights
Sudan has different tectonic and geological formations
The present study has aimed to investigate the seismic damage of a 5 storey existing reinforced concrete building in Khartoum, Sudan
The study has carried out gravity push with displacement control, using SAP2000
Summary
Sudan has different tectonic and geological formations. Currently, the infrastructure existing in Sudan is mostly not structured or designed to resist seismic forces. The most common type of existing buildings in Sudan is the reinforced concrete (RC) building Most of these buildings were built in last 50 years and designed to face gravity loads. They were designed in accordance to British Standard Code (BSI) (BS 8110, 1997). These buildings are currently in use for offices and shops and have a reinforced concrete frame structural system. The study aimed to examine the safety assessment of existing multistory building. For this purpose, a pushover analysis was carried out
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