基于零位移与无应力状态的洪口大桥索力计算研究  

Research on Cable Force Calculation of Hongkou Bridge Based on Zero-displacement and Zero-stress State

作　　者：吴钢伟 袁野 沈炜 WU Gangwei;YUAN Ye;SHEN Wei(Zhejiang Infrastructure Construction Group Co.,Ltd.,Hangzhou 310012,China)

机构地区：[1]浙江省建投交通基础建设集团有限公司,浙江杭州310012

出　　处：《洛阳理工学院学报(自然科学版)》2025年第1期25-28,共4页Journal of Luoyang Institute of Science and Technology:Natural Science Edition

基　　金：浙江省“尖兵”“领雁”研发攻关计划(2023C03183).

摘　　要：以洪口大桥的施工索力和成桥索力为研究对象,利用改进的零位移与无应力状态相结合的方法,分析施工阶段索力的变化规律,并验证计算线形与目标线形的偏差程度。结果表明:基于改进的零位移与无应力状态相结合的方法,可以有效地求截拱肋吊装时的扣索索力,计算所得线形满足要求。Taking the construction and completion cable forces of Hongkou Bridge as the research object,an improved method combining zero displacement and stress free state is used to analyze the variation law of cable forces during the construction stage,and the deviation degree between the calculated line shape and the target line shape was verified.The results indicate that the improved method combining zero displacement and stress-free state can effectively calculate the cable force during the lifting of arch ribs,and the requirements line shape meets.

关 键 词：钢管混凝土拱桥 零位移法 无应力状态法 索力计算 

分 类 号：U445[建筑科学—桥梁与隧道工程]