Innovative design and construction for new expressway bridges in Japan

摘要

New expressway construction in Japan has led to innovations that reduce the cost and time required for bridge construction. These innovations include hybrid structures that combine concrete and steel structures, cross-section designs that reduce dead load, and more efficient erection methods. Part of the new expressway is already completed and in service. The innovations are performing in line with expectations. It is still necessary to continue reviewing these initiatives to achieve additional efficiencies and further reductions in construction costs. However, we believe that initiatives like these in Japan provide useful ideas for bridge construction elsewhere.