The evaluation of structural properties of reinforced concrete building designed according to pre-modern code considering seismic performance

2015 ◽  
Vol 58 ◽  
pp. 184-191 ◽  
Author(s):  
Ali Ergün ◽  
Nevzat Kıraç ◽  
Veli Başaran
Author(s):  
Vincenzo Gattulli ◽  
Francesco Potenza ◽  
Filippo Valvona

The 6th of April 2009, a quite strong earthquake of magnitude ML =5.8 (Mw=6.3), struck in the city of L'Aquila. The seismic event caused serious injure to several masonry buildings, compromising a large part of the valuable historical and architectural heritage. The present work deals with seismic performance evaluation of an existing mixed masonry-reinforced concrete building in downtown L'Aquila city. A comprehensive discussion on the current limit capacity of the building based on the visual inspections of the occurred seismic damage, the experimental data from a wide campaign of on-site tests on the material properties, the results of numerical simulations from different naturally discrete models of the mixed masonry-reinforced concrete structure are presented. The seismic performance is evaluated through well-recognized N2 nonlinear static procedure. The Frame by Macro-Elements method is used to define an equivalent 3D frame representation of the structure. The obtained numerical results are directly compared with the surveyed damages.


Author(s):  
Tom Paulay

To enable acceptable seismic displacement demands to be estimated, the displacement capacity of a structural system needs to be known. This is controlled by selected performance criteria. It is postulated that the assignment of fractions of the required seismic strength of a system to its components may be arbitrary. This enables the displacement capacity of buildings to be evaluated without the knowledge of the magnitude of seismic strength. A redefinition of some traditionally used structural properties is a prerequisite for applications. The following study of reinforced concrete mixed systems illustrates rationale and extreme simplicity of application.


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