几种关键因素对黄土地区拱式渡槽结构设计的研究  

A study on several key factors in the structural design of arched aqueducts in loess regions

作　　者：董红科 权锋[1] 郭丽莉 朱天志 周炜波 DONG Hongke;QUAN Feng;GUO Lili;ZHU Tianzhi;ZHOU Weibo(Northwest Engineering Corporation Limited,Xi′an 710065,Shaanxi,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,陕西西安710065

出　　处：《水利水电技术(中英文)》2024年第S2期358-363,共6页Water Resources and Hydropower Engineering

摘　　要：为阐明几种关键因素对黄土地区拱式渡槽力学特征的影响,以石索渡槽为例,就合理拱轴线、拱脚位移、温度梯度、施工不平衡荷载和地震作用等几种关键因素对结构的影响做了分析。结果发现:拱脚位移不仅影响结构的力学特征,而且影响合理拱轴线线型的确定。同时,温度梯度、施工不平衡荷载和地震作用也应成为黄土地区拱式渡槽结构设计的关键因素。To clarify the influence of several key factors on the mechanical characteristics of arched aqueducts in loess areas,this article takes the Shisuo aqueduct as an example to analyze the influence of several key factors on the structure,such as reasonable arch axis,arch foot displacement,temperature gradient,construction unbalanced load,and seismic action.It was found that the displacement of the arch foot not only affects the mechanical characteristics of the structure,but also affects the determination of a reasonable arch axis line shape.At the same time,temperature gradient,unbalanced construction loads,and seismic effects should also be key factors in the design of arched aqueducts in loess areas.

关 键 词：黄土地区 拱 渡槽 设计 关键因素 

分 类 号：TV672[水利工程—水利水电工程] U448[建筑科学—桥梁与隧道工程]