桩格构式塔吊基础施工方案的应用研究

Study on Construction Scheme of Pile-lattice Type Crane Foundation

塔吊基础施工对塔吊安全起着至关重要的作用。在复杂的施工环境下,由"钻孔灌注桩基础+钢格构柱+钢筋混凝土平台"组成的桩格构式塔吊基础,经过验算符合受力要求。它突破了塔吊布置的空间限制,使施工总平面布置方案的灵活性得以提高,有利于施工组织。它能使塔吊在基坑土方开挖前投入使用,满足前期围护结构施工的水平及垂直运输工作,有利于加快施工进度。

The construction of tower crane foundation plays a vital role in the safety of tower crane.In the complex construction environment,the pile-lattice type crane foundation consisting of＂Bored pile foundation ＋ Steel lattice column ＋Reinforced concrete platform＂,is in accordance with the requirements of stress.It breaks through the limitation of space layout of tower crane and improves the flexibility of general construction layout scheme so that it is conducive to the construction organization.It can make the tower crane put into use before the pit excavation,and it meets the requirement of the enclosure structure construction of the horizontal and vertical transportation at the early stage,it is also beneficial for speeding up the construction progress.