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Analysing the Response of Multiple Frames using Different Grades of Reinforcement Steel




Autocad, Staad.Pro, Reinforcement steel, Fe415; Fe500


There is growing interest within the reinforced concrete industry in using higher strength reinforcing steel for certain applications. This interest is driven primarily by relief of congestion; particularly in buildings assigned a high seismic design category. There are also other areas where high strength bar can help improve construction efficiencies, or - combined with high strength concrete - allow reinforced concrete to be used in more demanding applications. Most steel used for reinforcement is highly ductile in nature. Its usable strength is its yield strength, as this stress condition initiates such a magnitude of deformation (into the plastic yielding range of the steel), that major cracking will occur in the concrete. Several different grades of steel may be used for large projects, with a minimum grade for ordinary tasks and higher grades for more demanding ones. Cost increases generally for higher grades, so some feasibility studies must be made to see if the better steel in smaller quantities is really cheaper than a larger quantity of a lower grade. Actually, higher grades are often used to permit smaller concrete members, relating to the space problems for placement of the reinforcement. This study focuses on designing four models in STAAD.Pro, each equipped with Fe415& Fe500 separately and presents a comparative study among the effects of grade of steel on the overall structural efficiency.

Other Details

Paper ID: IJSRDV4I70450
Published in: Volume : 4, Issue : 7
Publication Date: 01/10/2016
Page(s): 886-890

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