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ISSN Print: 2381-1153 ISSN Online: 2381-1161

American Journal of Environmental Engineering and Science

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Structural Concept and Analysis of the 4 - story Base Isolated Hospital Building “Vanadzor”

American Journal of Environmental Engineering and Science
Vol.2 , No. 5, Publication Date: Oct. 11, 2015, Page: 44-52

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Authors

[1]	Mikayel Melkumyan, Center of New Construction Technologies, Armproject OJSC, Yerevan, Armenia.

Abstract

Currently, using the developed by the author of this paper seismic base and roof isolation technologies, the number of already constructed and retrofitted buildings in Armenia has reached to 46. The number of base isolated buildings that are under construction is 3. Thus, the number of seismic isolated buildings per capita in Armenia is one of the highest in the world. In recent years seismic isolation technologies were extensively applied in construction of multi - story residential and business center complexes, as well as of schools, hotels and hospitals. They are briefly mentioned in the paper, which is, however, mainly dedicated to a 4 - story base isolated hospital building “Vanadzor” designed recently. Considered building has complicated architectural solution in plan and along its height. Construction of this hospital building is currently going on in the city of Vanadzor, the third biggest city in Armenia. The structural concept, including the new approach on installation of seismic isolation rubber bearings in this building by clusters, is described and some results of the earthquake response analyses are given. The building was analyzed using several time histories and also according to the requirements of the Armenian Seismic Code. Comparison of the obtained results indicates the high effectiveness of the proposed structural concept of isolation system and the need for further improvement of Seismic Code provisions regarding the values of the reduction factors for isolation systems.

Keywords

Base Isolation, Structural Concept, Reinforced Concrete Structures, Horizontal Stiffness, Location of Isolators by Clusters, Design Model, Results of Analyses

Reference

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