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Evaluation of Seismic Assessment Procedures for Existing Reinforced Concrete Structures Damaged
Bulletin of Earthquake Engineering. The seismic evaluation of existing buildings is a more difficult task than the seismic design of new buildings. Non-linear methods are needed if realistic results are to be obtained. However, the application to real complex structures of various evaluation procedures, which have usually been tested on highly idealized structural models, is by no means straightforward. In the paper, a practice-oriented procedure for the seismic evaluation of building structures, based on the N2 method, is presented, together with the application of this method to an existing multi-storey reinforced concrete building. This building, which is asymmetric in plan and irregular in elevation, consists of structural walls and frames. The main results presented in terms of the global and local seismic demands are compared with the results of non-linear dynamic response-history analyses.
Schoettler, and Stephen A. Visit the PEER publications page to download a free color pdf of the document. This program has now expanded to assess the seismic performance of existing tall buildings. Buildings being considered are 20 stories or more in height and were constructed on the west coast of the U. During that period, several hundred tall buildings were constructed in California, but earthquake resistant design procedures were not as fully developed as they are today.
The inelastic response of existing reinforced concrete RC buildings without seismic details is investigated, presenting the results from more than nonlinear analyses. The seismic performance is investigated for two buildings, a typical building form of the 60s and a typical form of the 80s. Both structures are designed according to the old Greek codes. These building forms are typical for that period for many Southern European countries. Buildings of the 60s do not have seismic details, while buildings of the 80s have elementary seismic details. The influence of masonry infill walls is also investigated for the building of the 60s. Static pushover and incremental dynamic analyses IDA for a set of 15 strong motion records are carried out for the three buildings, two bare and one infilled.