The research on the properties of fiberglass itself has been continuously deepened, including its basic mechanical properties such as tensile strength, elastic modulus, and corrosion resistance, as well as its bonding properties with different matrix materials (such as concrete, steel, etc.). Researchers are trying to find ways to improve the bonding strength between fiberglass and the matrix through experiments and theoretical analysis to fully utilize the reinforcing effect of fiberglass.
In terms of the reinforcement of concrete beams, columns, slabs and other components, the research focuses on how to arrange fiberglass materials, such as fiberglass fabrics and fiberglass bars, reasonably to improve the flexural, shear, compressive and other bearing capacities of the components. For example, through experimental research on concrete beams reinforced with fiberglass, the mechanical behavior, failure mode and the effect of improving the bearing capacity after reinforcement under different loading conditions are analyzed.
For the reinforcement of steel structures, the research mainly focuses on the cooperative working performance of fiberglass composite materials and steel structures, as well as how to solve the bonding and protection problems between fiberglass and steel structures to prevent the corrosion of steel structures and improve their overall stability.
Due to the long service life of building structures, the durability of fiberglass-reinforced structures has become one of the research focuses. The research includes the long-term performance changes of fiberglass under different environmental conditions (such as humid, acidic and alkaline corrosive media), and the reliability assessment of reinforced structures during long-term use.
With the help of numerical simulation methods such as finite element analysis, the mechanical behavior of fiberglass-reinforced building structures is simulated and analyzed, which can predict the performance of reinforced structures more accurately, optimize the reinforcement design scheme, and reduce the experimental cost and risk.
The exploration of composite reinforcement technologies of fiberglass and other reinforcement materials (such as carbon fiber, steel plates, etc.) is carried on to give full play to the advantages of different materials and obtain better reinforcement effects and economic benefits. For example, the research on carbon fiber/fiberglass composite reinforcement of concrete columns shows that this composite reinforcement method can not only improve the compressive bearing capacity and plasticity of concrete columns, but also reduce the reinforcement cost.
