Based on economy globalization,Belt and Road Initiative leads to more overseas engineering design and construction,which are also the challenges to the engineers.The application of international codes and standards in the design and construction is one of the challenges in the implementation of overseas projects.Some scholars in China carried out a series of studies on the calculation methods of steel structure specified in European codes and standards,the above content was compared with that in Chinese standards for the design of steel structure,which supported the engineering practice.Based on the cargoes warehouse in Karema port project in Tanzania,Euro-codes were followed to briefly describe the calculation theory related to the design of a 35 m-span steel truss roof as well as the application experience.The above research may provide a reference for similar projects.