风电场的关键决策之一是采用何种塔来达到希望的轮毂高度。
One of the key decision in a wind farm is the type of tower that will be used to reach the desired hub high.在风电行业的初期，使用的是格构式塔架- 比如在西班牙的南部，你依然能够在很老的风场里见到这种塔。
In the infancy of the wind industry, lattice towers where used – you can still see them in very old wind farm, for instance in southern Spain.然而，当轮毂高度达到50米以上的时候，这项技术就不能很好地契合了。
经历以下步骤后转变成圆筒铁塔，之后就成了（现在还是）标准解决方案。
However, this technology was not really a good fit when the hub high reached 50+ meters. The following step has been to switch to tubular steel tower with a circular section, which has been (and still is) the standard technical solution.与此同时，混凝土塔的方案也正在发展。
这有可能是混塔（hybrid）-底部是混凝土制作，上部是钢制或全混凝土方案（除了塔顶部很小一部分被当作是最后一段和机舱的结合器）In parallel, the concrete tower solution has been developing. This can be either hybrid (the lower part of the tower is made of concrete and the upper section of still) or a full concrete solution (except for a small element on top of the tower that act as a sort of adapter between the last section and the nacelle.塔的组建可以是现有工厂里预制，也可以在为项目专门设立的工厂里现浇，通常这种工厂设置在风场内。
很显然，在大型的拥有数十台的风场项目里，第二种情况比较明智。
The components of the tower can be either precast in an existing factory or cast in situ in a factory specifically built for the project, usually in the wind farm area. Obviously, this second alternative make sense in big wind farms, with dozens of wind turbines.预制管节工厂至于组装流程，市场上有不同的技术方案。
然而，通常情况下，每节塔由几个部分组成（通常是2到6部分），这些部分通过竖向缝组装在一起，形成一个完整的塔节。
Regarding the assembly process, there are different technical solutions in the market. However, in general each tower section is composed by several elements (usually from 2 to 6) that must be assembled together with vertical joints to compose a complete tower section.之后，所有的塔节通过横向缝组装和连接在一起。
After, the different tower sections are assembled together and united with horizontal joints.接缝通常填充砂浆, 一组缆索通常穿过塔一直向下穿到基础。
The joints are usually filled with grout, and a system of cables run through the tower usually all the way down to the foundation.混凝土的基础通常较小并且跟钢塔的标准浅基础不同。
The foundation of a concrete tower is usually smaller and different from the standard shallow foundations used for steel towers.Is a concrete tower a good choice?混凝土塔是一个良好的选项吗？As often, the answer depends on many factors.通常，答案取决于很多因素。
从经济的角度来说，把问题简单化，在风机高度100米及以上的时候，混塔往往更具竞争性。
From an economical point of view, to simplify the problem, concrete towers are usually competitive when the wind turbine is high (100 m. and above).从技术角度来说，混凝土塔比钢塔有如下优势：From the technical perspective, there are several advantages of concrete over steel:几何图形设计无限制No restriction in the geometric design良好的刚度和阻尼系数（对共振有力）Greater stiffness (good for resonance) and damping可能做到更高的轮毂高度Greater maximum hub height possible由于重量加大，基础相对较小Smaller foundation due to increased weight
