DEVELOPMENT OF A COMPUTATIONAL TOOL FOR THE STRUCTURAL ANALYSIS AND DESIGN OF COMPOSITE STEEL-CONCRETE SLABS WITH STEEL DECKING

Resumo

This contribution presents a web-based structural application for the design and verification of composite steel-concrete slabs, based on strength, stability, and serviceability limit state criteria. Its intuitive interface, accessible via browser on both desktop and mobile devices, enables engineers to efficiently perform structural calculations, including the determination of design actions and resisting capacities, as well as the verification of code-based requirements, shrinkage reinforcement, and, when applicable, negative moment reinforcement. The system also includes structural fire design checks and dynamic performance evaluation related to vibration serviceability. The application is structured into three core modules: a user interface (frontend), a data management layer (backend), and a processing module responsible for executing structural simulations. Once the input data is submitted, the backend processes the information and forwards the parameters to the analysis engine. Results are stored and presented to the user in a clear and organized format. The accuracy of the results has been validated against theoretical formulations and recent updated design standards, including NBR 8800:2024, AISI S100:2024, and NBR 14323:2013. The results obtained confirm the tool’s applicability to practical structural design scenarios. This solution contributes to the modernization of composite slab design in civil engineering, enhancing calculation efficiency, precision, and structural analysis automation.