Enduranc Ccpability Of Different Grades Of Reinforcing Bars In High Rise Bulding During Earhquake

Abstract

In Civil Engineering construction, a variety of materials compete and this is initiating a nonstop technological invention. This invention not only concerns the enhancement of the materials themselves but also results in the preface of new technologies and approaches for fabrication, joining and construction. There's growing interest within the reinforced concrete assiduity in using advanced-strength construction materials for certain operations. In more recent times, it has been set up possible to produce steels, at fairly low cost, whose yield strength is 3 to 4 times further than that of ordinary reinforcing steels. Likewise, it's possible to produce concrete 4 to 5 times as strong in compression as the further than ordinary concrete. These high-strength materials offer numerous advantages. At present in our country, high-strength concrete having a compressive strength of further than 4000 psi is possible and again, advanced strength reinforcing bars with a yield stress of,72,000 psi are available for structural construction which may reduce the cost of construction and ameliorate structural safety. The primary focus of this study is to find out the effects of using different grades of bars on the responses of high-rise structures towards EQ and Wind and also to compare the structural performances among them. To achieve this thing, a floor plan, a model of three 20-storied structures has been done, which is located in Dhaka, Bangladesh. All loads are applied according to Bangladesh National Building Code (BNBC). All the models have been developed for analogous lading scripts using the same structural systems. Three structure models have been created considering 40- grade, 60- grade and 75- grade bars and analogous concrete compressive strength. Relative studies have been carried out in terms of story relegation, story drift, shear forces, capsizing moment, stiffness, etc. for all structures and eventually try to present the configurations which have better performance