Mathematical Equations For Developing Ductile Non-Corrosive Reinforced Concrete Walls

Corrosion of steel reinforcement is reason of many deteriorations in RC structures especially in coastal areas. Thus, the conventional steel rebars should be replaced by other alternatives to mitigate this phenomenon, consequently, enhance the durability of structures. In this article, combined utilization of glass fiber reinforced polymer (GFRP) and stainless-steel (SS) is proposed as a substitute of traditional steel. To provide adequate strength and ductility with acceptable cost, GFRP is utilized as distributed and concentrated reinforcement overall wall, while SS is partially used as concentrated reinforcement in the plastic hinge zones. Pushover analysis is performed on many numbers of walls which included in a comprehensive parametric study. The results of the parametric study are used to develop two design equations for ductile non-corrosive reinforced concrete walls. The proposed design equations estimate the modification factors of both distributed and concentrated reinforcement, which were investigated by studying the performance of RC 15-stories building under lateral and vertical loading.