Abstract:To promote the conservation and efficient use of resources,in recent years,China has accelerated the renovation and expansion of various old wharves.With the development of the economy and the improvement of port engineering technology,the relevant codes and standards for water transport projects have been gradually updated.The differences between the old and new codes are often reflected in the stricter requirements of the new codes.In response to the problem that some old structures in the renovation of old wharves cannot meet the current code requirements,a study on the differences between the old and new norms is conducted.Through the example of phase Ⅰ container terminal renovation project in Luojing port area of Shanghai Port,the differences in five aspects,including the concrete strength grade,the limit value of concrete chloride ion permeability,the minimum reinforcement ratio of concrete,the minimum thickness of concrete cover,and the dimension parameters in calculation of the compressive bearing capacity of the positive section of the pile foundation,as well as the ideas and precautions for structural reinforcement and renovation,are summarized.The results can provide more targeted guidance for the renovation of old wharf structures and offer certain references for similar old wharf renovation projects.
