timber roof truss

基本解释

Fig. 12 illustrates a timber double post roof truss.
图12所示为一个双柱木屋顶桁架。
An example of a timber roof truss having a single post is given in FIG. 11, which illustrates an isometric view of a common form of roof construction.
图11所示为带一个立柱的木屋顶桁架的示例。它展示的是一个普通屋顶结构的轴侧图。
FIG. 12 illustrates a timber double post roof truss . This type of truss is constructed where a wider span or a less restricted roof space is required.
图12所示为一个双柱木屋顶桁架。这种桁架主要建于跨度要求较大或屋顶空间限制较少的地方。