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Structural Systems to resist lateral loads$ t7 u+ z# c. n) C9 n% a
Commonly Used structural Systems ^ T# y) S: o$ t$ L" k) }6 M
With loads measured in tens of thousands kips, there is little room in the design of high-rise buildings for excessively complex thoughts. Indeed, the better high-rise buildings carry the universal traits of simplicity of thought and clarity of expression.
2 b# S- t' O4 I! l It does not follow that there is no room for grand thoughts. Indeed, it is with such grand thoughts that the new family of high-rise buildings has evolved. Perhaps more important, the new concepts of but a few years ago have become commonplace in today’ s technology./ g m `9 ~; b7 L3 G
Omitting some concepts that are related strictly to the materials of construction, the most commonly used structural systems used in high-rise buildings can be categorized as follows:
8 }2 b3 {6 n0 p ] 抗侧向荷载的结构体系( a8 Y0 w1 A! _. Z9 w/ o
常用的结构体系( r- \& v5 L" R/ Y0 U9 `! e# ]8 e
若已测出荷载量达数千万磅重，那么在高层建筑设计中就没有多少可以进行极其复杂的构思余地了。确实，较好的高层建筑普遍具有构思简单、表现明晰的特点。* |3 s7 X( O0 H7 g
这并不是说没有进行宏观构思的余地。实际上，正是因为有了这种宏观的构思，新奇的高层建筑体系才得以发展，可能更重要的是：几年以前才出现的一些新概念在今天的技术中已经变得平常了。
7 n2 {: z) z& u% `0 V" B7 w) G3 L1 K 如果忽略一些与建筑材料密切相关的概念不谈，高层建筑里最为常用的结构体系便可分为如下几类： | 
