Abstract
Current research works and observations indicated that parts of the Kingdom of Saudi Arabia have low to moderate seismic regions. Major parts of buildings were designed only for gravity load and were poorly detailed to accommodate lateral loads. This study aims to investigate building performance on resisting expected seismic loadings. Two 3D frames were investigated using pushover analysis according to ATC-40. One was designed according to a design practice that considers only the gravity load and the other frame was designed according to the Saudi Building Code (SBC-301). Results showed that the building designed considering only the gravity load was found inadequate. On the other hand, the building designed according to SBC-301 satisfies the Immediate Occupancy (IO) acceptance criteria according to ATC-40.
Highlights
The Kingdom of Saudi Arabia lies within a low to moderate seismic region
The comparison of the pushover curve shows that the stiffness of frame is larger in intermediate resisting frame (IMRF) (SBC301) compared to the gravity load design
The test building is investigated using pushover analysis. These are conclusion obtained from this analysis:
Summary
The Kingdom of Saudi Arabia lies within a low to moderate seismic region. According to the U.S Global Survey (USGS) data, earthquakes have been detected recently in Tabuk (2009) and Gizan (2013). The inclusion of dynamic loads in the design of buildings in Saudi Arabia was limited to important huge structures. The Saudi Building Code (SBC-301) has been released for trial application. This code provides minimum load requirements for the design of buildings and other structures. Most of existing buildings do not meet the current design standards due to design shortage or construction shortcomings. There are various reasons such as the lack of a national code, the noncompliance with applicable code requirements, the updating of codes, the design practices and changes in the use of buildings. Existing buildings should be evaluated regarding their capacity for resisting expected seismic effects before rehabilitation works [1]
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