اميرمحمد فتاحي

This study investigates the structural performance of the RBS (Royal Building System), a reinforced concrete wall system utilizing permanent PVC polymer formwork, with a focus on the role of boundary elements under lateral loading. The RBS system integrates high-strength polymer components that serve as permanent formwork for various wall types, including load-bearing, shear, an‎d retaining walls. The research addresses two key questions: (1) how the RBS system enhances structural behavior under lateral loads, crack formation, an‎d functional parameters, an‎d (2) how the behavior of boundary elements in RBS walls compares to traditional reinforced concrete walls. A full-scale experimental methodology was employed, involving comparative testing of traditional reinforced concrete walls an‎d RBS-equipped walls under controlled lateral loads. The hypothesis posited that advanced polymer materials an‎d strategically designed boundary elements in RBS would improve strength, ductility, an‎d damage resistance. Experimental tests measured crack propagation, stress distribution, deformation, an‎d energy absorption using sensors an‎d data analysis software. The effects of openings an‎d potential weak points in the RBS system, particularly at boundary elements, were analyzed. Results demonstrated that RBS walls exhibited 61% higher energy absorption an‎d 51% delayed failure compared to conventional walls. The system displayed superior ductility, with more uniform stress distribution an‎d restricted crack expansion. Boundary elements in RBS acted as critical stress-relief zones, mitigating localized stress concentrations an‎d preventing sudden failure. These findings underscore the efficacy of RBS boundary elements in enhancing seismic resilience by improving load redistribution an‎d structural integrity. The study concludes that the RBS system, leveraging its polymer formwork an‎d optimized boundary elements, offers a promising alternative to traditional construction methods in earthquake-prone regions, significantly improving performance under lateral loads.

سيستم ساختماني رويال , المانهاي مرزي , بارهاي جانبي , مصالح پليمري پيشرفته

Royal Building System (RBS) , Boundary Elements , Flexural an‎d Tensile Loads , Advanced Polymer Materials

amirmohammad fattahi

dr.mohsenali shayanfar an‎d dr.rasoul ahmadi