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近年来我国大、中型火力发电站的锅炉设备均为悬吊式锅炉,支承吊悬炉的炉架采用钢或钢筋混凝土结构,通过近年来我国几次强烈地震,发现炉架在电厂建筑中震害最轻,引起了有关方面的重视和兴趣,为了探索其震害轻的原因,本文着重研究悬吊炉架构体系的动力特性和地震反应。试验在水利科学研究院抗震防护研究所的ASE—614L型振动台上进行,分别输入正弦波或地震波,使用晶体加速度计测振系统和动态应变仪测振系统,测量加速度和应变两种参数。
In recent years, China’s large and medium-sized thermal power plant boiler equipment are suspended boilers, supporting hanging furnace furnace or steel reinforced concrete structure, several strong earthquakes in China in recent years and found that the furnace frame in the power plant construction in the earthquake The lightest damage has aroused the attention and interest of the parties concerned. In order to explore the reason of light damage, this paper focuses on the dynamic characteristics of the suspension system and earthquake response. The experiment was carried out on the ASE-614L vibration table of the Institute of Earthquake Protection of the Institute of Hydraulic Research. Sine waves or seismic waves were input respectively. The crystal accelerometer vibration system and the dynamic strain gage vibration measurement system were used to measure acceleration and strain.