求翻译：本设计对该桥的上部结构做了设计与检算。根据线路情况，全桥共设为9跨，分为两联，主梁按部分预应力混凝土A类构件设计，有10个桥墩，两个桥台。根据设计要求拟定截面尺寸，分别计算结构恒载、活载内力，并进行荷载组合，确定出主梁的最不利荷载，进行预应力钢束的估算和布置并考虑各阶段的预应力损失，最后对控制截面进行强度、压力、抗裂性和挠度检算，以上各项检算均满足相关规范要求。是什么意思？

The design of the bridge superstructure Design and Calculation. Line conditions, the full-bridge is set to 9 cross, divided into two associated main beam by a class component of the partially prestressed concrete design, 10 piers and two abutments. Prepared according to the design requirements of se