摘要
回顾近年来我国建筑及高铁、高速公路基本建设市场,混凝土预制管桩发展带动了PC钢棒的生产与销售。通过一元回归分析,回归出公式y=159.891+37.512x,二者线性关系明显,并通过了R检验、t检验及F检验,预测2022—2026年PC钢棒的消费量;分析PC钢棒行业竞争结构特征为分散性竞争;对行业竞争五因素进行了分析。
Reviewing capital construction market of construction,high-speed railway and expressway in China in recent years,the development of concrete precast pipe pile has driven production and sales of PC steel bar.Through univariate regression analysis,regression formula y=159.891+37.512x is obtained,linear relationship between them is obvious,and they have passed R test,t test and F test.Forecast PC steel bars consumption from 2022 to 2026;Competition structure of PC steel bar industry is characterized by decentralized competition;Five elements of industry competition are analyzed.
作者
王宝玉
曹德付
陈广川
关立
Wang Baoyu;Cao Defu;Chen Guangchuan;Guan Li(Sinosteel Zhengzhou Research Institute of Steel Wire Products Co.,Ltd.,Zhengzhou 450001,China;China Railway Major Bridge Engineering Group Co.,Ltd.,Zhengzhou 450001,China)
出处
《金属制品》
CAS
2022年第2期54-57,共4页
Metal Products
关键词
PC钢棒
PC混凝土预制管桩
竞争结构
一元回归
市场预测
PC steel bar
PC concrete precast pipe pile
competitive structure
univariate regression
market prediction
