Using shape memory fibers to reinforce concrete is a novel concept in civil engineering. Pre-stretched are brought into and after activating the effect, compressive prestress state introduced. The present work investigates this method numerically. A brief introduction relevant behavior of alloys given. Fiber activation modeled by an empirical phase transition model. Simulations carried out appl...

A novel concrete mix has been developed that can achieve high levels of self-prestressing through the controlled expansion sample with cast-in carbon fibre reinforced polymer (CFRP) bars. Experiments have shown mechanical properties and durability are not adversely affected by mix’s self-expanding nature. However, behaviour this at elevated temperatures is largely unknown, raising legitimate co...

Abstract Prestressed composite steel-concrete structures are scarcely used due to a lack of clear standardized design guidelines and formulations on the subject. The present research aims methodologies for beams with external pretension applied via straight tendons. A computer program perform structural analysis such was developed based two different methodologies: first one is presented in ABN...