TITLE:
Seismic Evaluation of Reinforced Concrete Frames in the Harsh Environment Using Pushover Analysis
AUTHORS:
Mohamed Sobaih, Ahmed Al Ghazali
KEYWORDS:
Pushover Analysis, ACI 318-08/IBC 2009, Abu Dhabi, Harsh Environment
JOURNAL NAME:
Open Journal of Civil Engineering,
Vol.6 No.4,
September
30,
2016
ABSTRACT: The main objective of this paper is to evaluate the seismic response of buildings of typical reinforced concrete frames when concrete starts to deteriorate gradually and to make a comparison between the base shear and the displacement at different stages of earthquake loading. Typical 5, 15, 20 and 30-storey reinforced concrete frames have been designed for seismicity according to the recently adopted seismic code in Abu Dhabi, ACI 318-08/IBC 2009 code. A pushover analysis has been performed to these four buildings by using SAP 2000. Twenty-four models have been created (6 models for each building) by decreasing the concrete strength gradually from 4000 psi (281 kg/cm2) to 1500 psi (105 kg/cm2). This is to simulate the effect of harsh environment on the strength of concrete in existing buildings.