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城镇改建扩建中,一些房屋被拆除,其中预应力空心楼板是被拆下构件中较为重要且数量较多的构件。被拆下的预应力空心楼板,除已出现横向裂缝者外,大部分受伤部位是胡子筋。胡子筋损坏的主要原因有二:其一,由于预应力空心
In the reconstruction and expansion of urban areas, some houses were demolished. Among them, the prestressed hollow floor is the more important and larger number of components to be demolished. The prestressed hollow slabs that have been removed have most of the injured parts bearded tendons, except those that have had lateral cracks. There are two main reasons why the tendon is damaged: firstly, because of prestressed hollowness