跪求土木工程专业英语 段兵廷主编的 lesson1后面的reading material （1）和（2）的原文和翻译

Steel construction refer to a broad range of building construction in which steel plays the leading role.Most steel construction consistent of large-scale building or engineering works ,with the steel generally in the form of beams ， girders ，bars ，plates and other members shaped through the hot-rolled process .Despite the increased use of other materials, steel construction remained remained a major outlet for the steel industries of the U.S ,U.K , U.S.S.R ，Japan ，West Germany ，France , and other steel producers in the 1970s .

求161页concrete文章前六段翻译。不要在线翻译

此回答不包含文字内容

不是学土木工程的，不懂

1、全文翻译
2、第一课