以火箭式激振器为震源对高大结构物 (即云南景洪澜沧江大桥主塔 )进行了现场动力测试和分析 ,利用实测结构体系的动力特性 ,取得了场地土边界元参数 ,在考虑了土与结构相互作用的基础上 ,为选取全桥的抗震设计参数提供合理依据。 Field test and analysis of tall structures (ie, the main tower of Jinghong Lancangjiang River Bridge in Yunnan Province) were carried out by using rocket exciter as the seismic source. Based on the measured dynamic characteristics of the structural system, the boundary element parameters of the soil were obtained. Based on the interaction with the structure, it provides a reasonable basis for selecting the aseismic design parameters of the whole bridge.