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该文结合河南焦作武陟县-南阳西峡县高速公路桃花峪黄河大桥副桥50+10×80m连续-刚构组合梁桥的设计,对比分析了连续-刚构组合梁桥的优越性,论述了长联高墩大跨桥梁的设计难点,通过体内、体外联合配束解决了大比例边跨受力问题,提出了设置支座预偏量的计算方法,并进行了结构抗震分析。
Combined with the design of 50 + 10 × 80m continuous-rigid frame composite beam bridge of Peach Huayu Yellow River Bridge in Nanyang Xijia County, Nanyang, Henan Province, this paper compares and analyzes the superiority of continuous rigid frame composite beam bridge, The design difficulties of long span high pier and long span bridge are discussed. The problem of large-span lateral span stress is solved through in-vitro and in-vitro combination of beams. The calculation method of setting pre-deflection of bearing is proposed and the structural seismic analysis is carried out.