Combining with the engineering status of some bridge,the paper selects the optimal slab core model,illustrates the craft procedure and operation of the umbrella bone supported precast post-tensioned hollow plate,so as to solve some problems in the precast process of the post-tensioned slab beam including the difficulty in demolishing and thin top plate.%结合某桥梁的工程实况,选取了一种最优的板梁芯模形式,并阐述了伞形骨支撑装配式芯模预制后张空心板的工艺流程及操作要点,有效解决了后张法板梁预制过程中芯模难以拆除与顶板偏薄的问题.
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