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高层建筑的垂直偏差一般都偏大,在结构施工阶段,有的全高垂直偏差竟达10多厘米,不仅给外粉刷带来很大困难,而且严重影响建筑物的使用及美观,特别是对电梯来说,井道允许的全高垂直偏差只有2厘米,一般的施工手段很难达到这个要求。大模施工工艺的垂直偏差虽然比较好控制一些,但是,由于一般大模板的外模依靠内模及用拉撑等手段保持稳定,在捣混凝土过程中十分容易走动,垂直偏差仍难满足电梯安装的要求。在导墙处,为了纠正偏差,一般采取收小导墙厚度的办法来调整轴线偏差,但这样做不仅漏浆严重,外墙面的修补工作量也很大。在门窗洞口模板的做法方面,一般的处
The vertical deviation of high-rise buildings is generally large. In the stage of construction, some vertical deviations of up to 10 centimeters in height may not only cause great difficulties for painting, but also seriously affect the use and aesthetics of buildings, especially for elevators. For example, the allowable full-height vertical deviation of the well is only 2 cm, and it is difficult for general construction methods to meet this requirement. Although the vertical deviation of the large-mold construction process is better to control, but because the external mold of the large formwork depends on the internal mold and the method of pulling and bracing to maintain stability, it is very easy to walk in the concrete process, and the vertical deviation is still difficult to meet the elevator installation. The request. At the guide wall, in order to correct the deviation, the axis deviation is generally adjusted to reduce the thickness of the guide wall. However, in doing so, the leakage of the slurry is not only serious, but also the repair work of the outer wall is also large. In the practice of the door and window hole template, the general office