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一、新老厂房不同结构的衔接某厂金工厂房需向北扩建,原设计采用跨度为12m的预应力V形折板屋顶,由于县级施工单位不能制作这种构件,于是不得不在扩建部分采用普通薄腹梁加大型屋面板的屋顶。厂房内有5t桥式吊车1台,为保持吊车通行的足够空间,也为了便于处理好两种不同屋顶衔接处的防水问题,提高了扩建部分的屋面标高。在扩建设计中,将扩建起端的单杯口柱基改造成双杯口柱基,见图1。拔除扩建起端处原有的抗风柱及其
1. The connection of different structures of old and new workshops needs to be expanded northwards for the gold factory of a certain factory. The original design adopted a prestressed V-shaped flap roof with a span of 12m. Because the county-level construction units could not make such components, they had to expand the building. Use ordinary thin girders to add roofs with large roof panels. There is a 5t bridge crane in the factory building, in order to maintain enough space for the crane to pass, and also to facilitate the handling of the waterproof problem of the two different roof joints, and to increase the elevation of the part of the roof. In the expansion design, the single-mouth column base at the beginning of the expansion was transformed into a double-base column base, see Figure 1. Pull out the original wind-resistant column at the beginning of the expansion and its