根据使用任务、性质和所在线路的远景发展需要,结合桥梁所在的地形、气候和水文地质以及交通情况,按照安全、适用、经济、先进和适当照顾美观的原则进行多方案比较,最后选择了后张法预应力混凝土先简支后连续T形梁桥。%According to the utilization tasks, nature and long-term development demands of the existing routes, combining with the bridge topog- raphy, climate and hydrology and traffic conditions, the paper carries out scheme comparison according to security, adaptability, economy, ad- vance and beauty, and finally determines the post tensioned prestressed concrete simply supported continuous T-beam bridge.
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