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我单位承建了某水泥厂工程,其中电子收尘系统增湿塔的钢筋混凝土框架竣工后,开始进行安装。当塔身安装至1/3高(即20米)时,增湿塔框架发生了异常晃动。该增湿塔框架原设计为独立柱基础,主体是由4根截面500毫米×500毫米的钢筋混凝土柱支撑起的环形平台,见图1。施工时框架的钢筋按要求绑扎,钢筋有出厂合格证。混凝土经回弹检查证明强度满足设计要求。其机械
Our company undertook the construction of a cement plant project, in which the reinforced concrete frame of the humidification tower of the electronic dust collecting system was completed and installation was started. When the tower body was installed to 1/3 height (ie 20 meters), the humidification tower frame was shaken abnormally. The humidification tower frame was originally designed as an independent column foundation, and the main body is an annular platform supported by four reinforced concrete columns with a section of 500 mm×500 mm, as shown in Figure 1. During the construction, the steel bars of the frame are bound as required, and the steel bars have the factory certificate. The rebound check of the concrete proves that the strength meets the design requirements. Its machinery