北京饭店汽车楼升板结构工程采用了后张无粘着预应力新工艺,为了使预应力钢丝束与混凝土之间达到无粘结,以保证预应力钢丝束顺利地张拉,因此钢丝束表面需要施加涂层并缠塑料布。整个工程共有预应力钢丝束1400余束,每束长约35米,如果把全部钢丝束连接起来累计长度约50公里。这么多钢丝束需要施加涂层,缠塑料布,工作量是 The Beijing Hotel’s automobile riser structure project adopts a new post-tensioned non-adhesive prestressing process. In order to ensure that the prestressed steel beam and the concrete are not bonded together, the prestressed steel beam is smoothly stretched, so the surface of the steel beam needs to be Apply the coating and wrap the plastic cloth. The entire project has a total of more than 1,400 bundles of prestressed wire bundles, each about 35 meters long. If all the bundles are connected, the total length is about 50 kilometers. So many wire bundles need to be coated, wrapped in plastic cloth, the workload is