一、钢筋混凝土板桥和梁桥印度在独立之前,仅有极简单的拱桥、吊桥、桁架桥。五十年代前后颁布了几项计划和条例,这对印度的公路发展起了重要的推动作用。随着对混凝土性能的了解和对预应力混凝土性能的逐步认识,简支板和T形梁开始得到应用。这种体系的优越性在于设计简单、 First, the reinforced concrete slab bridge and beam bridge Before India’s independence, only a very simple arch bridge, suspension bridge, truss bridge. Several plans and regulations were promulgated before and after the 1950s, which played an important role in promoting road development in India. With the understanding of the properties of concrete and the gradual understanding of the properties of prestressed concrete, the application of simple support and T-beam began. The superiority of this system lies in the simple design,