前言运煤栈桥是燃煤火力发电厂的主要建筑物。它的抗震性能直接影响到运行的安全。对过去运煤栈桥的抗震能力虽进行过一些探讨性工作,但多限于结构布置和构造方面,且对栈桥结构的抗震计算一般简化为平面单个体系,很少考虑结构的整体工作,因而与实际工况不尽相符。本文的目的就是从震害经验入手,通过对十几条运煤栈桥的动力特性的实测, Foreword Coal transportation trestle is the main building of a coal-fired power plant. Its seismic performance directly affects the safety of operation. Although some exploration work has been done on the seismic capacity of coal transport trestle in the past, it is mostly limited to structural arrangement and construction, and the seismic calculation of the trestle bridge structure is generally simplified as a single plane system, seldom considering the overall work of the structure, and thus the actual Conditions do not match. The purpose of this paper is to start with the experience of earthquake damage and to measure the dynamic characteristics of more than a dozen transport coal trestle bridges.