【摘要】 我国近年在北京建成了４０５ｍ高的中央电视塔，该塔由钢筋混凝土塔身、塔楼和混凝土与钢天线塔杆所组成。为了研究电视塔的动力性能，在常遇地震作用下的反应，和在罕遇强烈地震作用下可能出现的破坏形态，按相似准则制作了８ｍ高的电视塔结构模型，在大型振动台上进行了系列的试验研究。通过试验，得到了电视塔结构的动力性能，塔的地震反应以及在强烈地震作用下塔的破坏形态与机理。研究结果为该电视塔的抗震设计提供了依据。更多还原

【Abstract】 In China, a 405m high Central TV tower has been constructed during recent years in Beijing which is in the seismic region. The tower is composed of a R. C. shaft, a tur ret, the R. C. and steel poles. In order to investigate the dynamic characteristics of the tower and its seismic response and the damage under strong earthquake, a sin high tower modeal was bUilt according to the law Of similarity, and a series of experiments were conducted on a large shaking table which has a dimension of 5 × 5m and is capable of exerting a maximum force of 200kN in random mode and in three dimensions.Through the experiments the dynamic characteristics of the tower and its seismic response were attained and the damage under strong earthquake was observed. These results provide a scientific basis for the earthquake resistant design of the tower.更多还原