建筑专业英语课件.ppt

Unit 11 第十一单元St;教学目标了解受拉钢构件的特点和;Tension members;受拉构件在桥梁和屋架、塔、支撑;One of the simp;The average（通常）;When rods are u;当圆钢被用作抗风支撑时，一个很;The preceding d;前面关于圆钢的讨论应该阐明为什;The tension mem;钢屋架的受拉构件由单角钢组成，;For bridges and;对桥梁和大型屋架，受拉构件可以;Although single;Members consist;由几个截面组成的构件需要连接在;A few of the va;Steel cables ar;Normally, to se;2.Axially Loade;有多种受压构件，其中柱子是最知;There are three;轴向受力的柱子发生失效有三种一;The longer a co;The loads suppo;Loads that are ;The other desir;Slight（微小的）impe;Obviously, a co;The preceding（前;The spacing（间距）;平面上柱子的间距确定了什么是一;Type of Beams ;Among the many ;在很多梁的类型中有搁栅、过梁、;Sections Used a;梁的断面 W型钢通常证明是最经;Another common ;作业练习 通??一