山区连续刚构桥主墩位置研究

Research on Location of Main Pier for Continuous Rigid Frame Bridge in the Mountain

通过对几座典型桥梁的实际情况进行分析,结合大跨、高墩连续刚构桥的病害特点,有针对性地在连续刚构桥主墩位置选择上,通过经验坡角法、应力分析等计算方法,合理确定连续刚构桥主墩位置,从而尽量采用较小跨径的连续刚构桥,避免出现大跨径连续刚构桥的病害。

Through aJaalysis characteristics of continuous rigid frame bridge location selec, tion, prestressing analysis, reasonably of the real situations to some typical bridges, based on diseases frame bridge with large span and high pier, targeted in a continuous rigid through the experience of slope angle method, calculating method for determine the location of the main pier, and try to use continuous rigid frame bridge with small span length and avoid the emergence of diseases for long span continuous rigid frame bridge.