Combining with specific engineering case, it introduces the prestressed slab construction technology of unbonded post-tensioning method, respectively expounds construction procedure and critical procedure etc, and mainly discusses the operation step and relevant attentions of prestressed reinforcement tensioning, which has accumulated valuable experience for future similar engineering.%结合具体工程实例，介绍了无粘结后张法预应力楼板施工技术，分别阐述了施工流程，关键工序等内容，着重论述了预应力筋张拉的操作步骤及相关注意事项，为今后同类工程积累了宝贵经验。
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