塔器设备地脚螺栓预紧力的设定与控制

塔器设备和钢结构安装时，地脚螺栓的预紧力必须控制在一定范围内，但设备安装、试车后螺栓应力的初松弛，使地脚螺栓的预紧力不可能保持不变，因而将给设备运行带来隐患。为此在全面考虑预紧力影响因素的基础上，归纳提出塔器设备地脚螺栓预紧力设定和控制的定量依据，并进行了分析探讨。

Setting and controlling of prestress of anchor bolt for tower equipment

Prestress of anchor bolt must be controlled in a certain range when t0wer equipment andsteel structures are installed- Prestress of anchor bolt can be changed because of the initial looseof bolt after mounting the equipment so that a hidden perils would be existed in equipment opera-tion. On the basis of prestress affecting factors in overall considerations, the setting and control-ling of the prestress of anchor bolt for tower equipment are enumerated, and theoretical analyzingand approaching are also made.