bridge box

基本解釋

Temporary structures are set up to support the formwork when a large concrete bridge with box-section is built.
采用箱型截面的大型混凝土橋梁，其結(jié)構(gòu)施工過(guò)程中澆注混凝土需要設(shè)置臨時(shí)支撐結(jié)構(gòu)。
This paper researches the mix ratio of C55 concrete and construction technology of Xiaoshawan Bridge box girder, especially the influence of hill sand on concrete performances.
對(duì)小沙灣黃河大橋主橋箱梁C55混凝土配合比和施工工藝進(jìn)行了研究，重點(diǎn)分析了山砂對(duì)混凝土性能的影響。
On the basis of the variational method, a finite difference solution is presented for shear lag effect in Qiantang River Bridge with box section of varying depth.
本文結(jié)合錢塘江二橋應(yīng)用變分法推導(dǎo)了變截面箱形梁剪滯效應(yīng)的微分方程并利用有限差分法求得解答。