Analytical Study of Model Rubberized Concrete Base Isolation System for Buildings in developing Countries
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 1
Abstract
Materials which improve damping and ductility during structural response to earthquakes are very beneficial. Concrete incorporating scrap rubber is one of them. This study analyseddynamicresponse of a 3- bay,4-storey reinforced concrete frame designed according to Eurocode 8 and the response of the same frame on an FRP-confined rubberized concrete foundation. Using confined rubberized concrete as short foundation columns between the ground and the frame lowered shear demand on a structure by 70%, and acceleration demand was reduced by 75 %. The reduction in seismic demand was mainly due to deflection of the earthquake force by the deformable foundation system in a manner analogous to base isolation systems.The base-isolated frame performed efficiently with an average of over 60% reduction in interstorey drifts. The implication of this is that a less expensive frame designed according to the provisions of Eurocode-2 can perform satisfactorily if founded on FRP-confined rubberized concrete columns foundation system.The reduction in force demand on the structure implies lesser material for the superstructure which implies lesser cost of shelter.The proposed deformable system from FRP-confined rubberized concrete is not only cheap, simple to construct with a little technical know-how, but is also environmentally friendly. With the current challenges in providing good quality shelter in earthquake-prone, developing countries, providing concrete which is not only cheaper but with enhanced dynamic properties, will go a long way to provide safe structures for humanity. Apart from this, recycling scrap tyre rubber to be used as aggregates in the production of concrete for structural applications will in no small measure result in a cleaner and sustainable environment.
Authors and Affiliations
Emmanuel Owoichoechi Momoh
Keywords
Related Articles
- EP ID EP437676
- DOI 10.9790/1684-1501023046.
- Views 93
- Downloads 0
Design and Development of an Innovative Hubless Wheel
the aim of this project is to design and build an innovative hubless wheel. The hubless wheel will be self driven by a prime mover like a DC motor. The wheel will have three planetary rollers which will be powered by two...
Corrosion Management and Control in the Petroleum Industry-A Case Study of Practicalities at Kaduna Refinery
Corrosion is preponderant in the petroleum environment because most known factors that can cause to extreme various types of corrosion of a wide range of materials are abundantly present in the physicochemical compositio...
Intelligent Maintenance System by Using MARKOV Chain with Monte Carlo Simulation Approaches
This paper presents Markov chain technique as a tool for forecasting the suitable maintenance of machines that helps managers in organizational decision making. Markov process is a tool to predict that it can be make log...
Effect of Outrigger Structural System on Highrise Structures, Subjected to Lateral Loads
There are several factors which have made it compulsory for our nation and the world to go for highrise structures and the skyscrapers. One of such factors is rapidly increment in population in urban areas. But it is a b...
Empirical Study of No – Fines Concrete Properties Produced From Natural and Artificial Aggregates for Construction
An empirical study on the physical and mechanical properties of no-fines concrete produced from natural and artificial aggregates through laboratory work is presented in this paper. Aggregates to aggregates bond was achi...