武钢铁合金厂2号电炉厂房,由于电炉容量要求由1800kW增大到2500kW,原有厂房的高度和操作平台均不能满足工艺要求。需要在较短的时间内进行全面改造和加固。原结构于1972年建成,在当时的历史条件下,属边设计边施工,因而原设计资料不全,大多数资料只能通过现场实测。其改造前的平剖面见图1。一、改造和加固的主要项目根据工艺要求,除可以保留原厂房的钢柱和第二层3.2m平台外,需做如下改造和加固。1. 抬高屋盖,将原柱顶标高11.85m加高至16.60m,钢柱接长4.75m。 In No. 2 electric furnace plant of Wujin Iron and Steel Alloy Factory, the height of the original plant and the operating platform could not meet the technological requirements because the capacity requirement of the electric furnace increased from 1800kW to 2500kW. It needs to be completely transformed and reinforced within a short period of time. The original structure was built in 1972. Under the historical conditions at that time, it was designed as a side edge. Therefore, the original design data was incomplete, and most of the data could only be measured on-site. The flat profile before the transformation is shown in Figure 1. First, the main project of transformation and reinforcement According to the technological requirements, in addition to the steel column of the original plant and the 3.2m platform of the second floor, the following reconstruction and reinforcement are required. 1. Raise the roof, raise the height of the original column top 11.85m to 16.60m, steel column length 4.75m.