Structural systems to resist lateral loads
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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.6 l$ \) _3 x* o: Q, ?! e
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.
# `/ b, G! e8 ~7 ^9 ]8 x0 f+ tOmitting 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:
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抗侧向荷载的结构体系
! e S$ N6 k" i7 G5 {- A常用的结构体系 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& K. U% k4 T& `9 M
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。 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! P3 H; Q! S0 f: S# e1 R' x
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。' e/ J$ K8 \5 v6 M1 Z, t# T
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：
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