A Comparison of Concrete Buildings for Hospital Use Designed Based on Standard 2800 3rd and 4th Editions in Iran

One of the main principles of any set of construction regulations is that configuration, structure, materials and details must be designed in a way that the building can show plasticity during earthquakes. A structures plasticity is defined as the ability to withstand enormous pressure and transformation without suffering great damage or deterioration. Construction regulations consider a certain amount of plasticity for every structure and base their design hypotheses on that amount. In the present study, since performance-related design principles have changed in the 4th edition of construction regulations, structures that have been designed and implemented based on performance must react to their being fully operational. For this reason, performance of concrete essential buildings located in relatively high-risk sites and designed according to regulations provided by the standard 2800 3rd and 4th editions will be compared and analyzed. Also, eight concrete buildings with special bending frames with 4, 6, 8 and 10 floors for hospital use will be analyzed according to ACI regulations using the SAP application, and then using PUSHOVER analysis, the structures will be evaluated. The results indicate that the structures designed according to the 4th edition have more loading capacity compared to structures designed using the 3rd edition, and the structures have become out of performance before reaching their target replacement point.