土木工程专业英语(第二版_段兵延)第4课.pptVIP

Lesson 4 Tall Building 高层建筑 New words and phrases: spectacular sway residential commercial innovation boundary eliminate apartment column demonstrate project stress truss bundle terminate facade perimeter encroach high-rise building 高层建筑 reinforced concrete 钢筋混凝土 spandrel beam 窗下墙的墙托梁 shear wall 剪力墙 土木工程专业英语 * Although there have been many advancements in building construction technology in general, spectacular achievements have been made in the design and construction of ultrahigh-rise buildings． 虽然在建筑施工技术中，总的来说已经有了许多进步，但是在超高层建筑的设计和施工中也取得了惊人的成就。 ultra-[前缀] （1）在……的那一边 ultramontane 山那边的 ultraviolet 紫外线 （2）极端 beyond the normal or proper degree; excessively ex. ultra-left ultra-right ultramodern ultraconservative 极端保守的 （3）超、过 beyond the range, scope, or limit of ex. ultrahigh 超高的， ultrasonic 超音速的 Tall Buildings 高层建筑 The early development of high-rise buildings began with structural steel framing． 高层建筑的早期发展始于结构的钢框架。 Reinforced concrete and stressed-skin tube systems have since been economically and competitively used in a number of structures for both residential and commercial purposes． 从那以后，钢筋混凝土和薄壳筒体体系就被竞相经济地用在了许多民用和商用结构中。 The high-rise buildings ranging from 50 to 110 stories that are being built all over the United States are the result of innovations and development of new structural systems． 美国各地正在修建的50～110层的高层建筑是新的结构体系改革和发展的结果。 Tall Buildings 高层建筑 Greater height entails increased column and beam sizes to make buildings more rigid so that under wind load they will not sway beyond an acceptable limit． 更大的高度需要增加柱和梁的尺寸来使建筑物的刚性更大，以便于它们在风荷载作用下不会倾斜到允许的范围之外。 Excessive lateral sway may cause serious recurring damage to partitions, ceilings, and other architectural details． 过分的水平倾斜将导致隔板、天花板和其他建筑物细部的严重的复发性破坏。 In addition, excessive sway may cause discomfo