文章指出，移动支架造桥是一种逐孔原位建造预应力混凝土梁的大型施工装备,在我国， 对于中跨预应力混凝土梁的建造尤其适用。作者认为，对中等跨度梁使用简段拼装法是最佳方法。 最后,作者介绍我国ZQJ—32/56移动支架造桥机的性能和操作方法,并对造桥机的社会与经济效 益和推广前景作了评价。

The paper pc i nusout that the bridge —building machine with mavable supports is a large-scale building machinery for constructing prestressed concrete girders which are built"span by span at the ordinary positions. It is specially suitable for building medium— span prestressed concrete girders in our country. The author recognizes that the application of the simple—section assembly erection method is the best way for the medium—span girders. Finally?the author intro-duces the specifications and the operating method of the ZQJ —32/56 movable—supports bridge —building machine manufactured by our country,and gives an evaluation on its social and eco?nomic benefits and its popularization forecast.