QTZ250塔吊增加独立自由高度的研究

Study on Increasing Free Standing and Unsupported Height of QTZ250 Tower Crane

在建筑施工中常因施工现场狭小、施工现场外存在较高的已建建筑物或其它障碍物以及土方基坑开挖深度和群塔施工的影响,使塔吊独立自由高度常常不能满足要求。针对这种情况,以实际工程为例,对塔吊增加独立自由高度进行了详细分析和计算,并提出了相关建议,在类似情况下亦具有参考作用。

In practice, the free height of tower crane often fail to meet the requirements of construction, because of narrow construction site, the existence of high buildings or other obstacles, the depth of foundation pit excavation and operation of multiple tower cranes. In view of this situation, with real example, the paper calculated and analyzed the independent free height of tower crane and provided related proposals, which can be the reference for projects under similar situation.