For the most part, the infrastructure existing
in Sudan is not structured or planned to withstand seismic forces. The study
investigated the seismic damage in Khartoum , Sudan, to an existing 5-storey
reinforced concrete structure. In the report , three performance standards were
considered, which included immediate occupancy, life protection, and prevention
of collapse. Using the force control approach and lateral push with
displacement control, the gravity push was performed using SAP2000. The push
curve, consisting of capacity spectrum, demand spectrum, and performance point,
is generated by Pushover analysis. In addition to maximum base shear carrying
power, it showed the performance level of building components. The demand curve
was found to overlap the capability curve between points B and C in the X
direction, which is the degree of life protection, and between points B and C
in the Y direction. That is the degree of life security and collapse prevention. Therefore,
to be reinforced, some building elements are required. Due to its simplicity,
the study concluded that pushover analysis is preferably used for static
nonlinear procedures. The position of plastic hinges has been shown to suggest
weak zones in a structure, which is helpful in re-strengthening existing
buildings. It has been studied that by modifying member properties and
re-running the study, the building can easily be stiffened or strengthened.
Author(s) Details
Dr. Mohammed Ismaeil
Department of Civil Engineering, College of
Engineering, University of Prince Mugrin, Saudi Arabia and Sudan University for
Science and Technology, Khartoum, 79371, Sudan.
View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/299
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