弯弧出平面外高空连廊串吊累积提升施工技术

Construction Technology for Accumulating Lifting of Curved and Out Plane High Rise Corridor

弯弧出平面外钢连廊造型新颖、独特。四层空间钢桁架串吊4层平面桁架,连廊外形呈弯弧状。结合其特点及施工条件,创造性采用"先累积串吊提升,后整体提升"的新型提升方法。通过分析三维模型,确定关键体外提升点,并对提升过程、支架、吊具,进行了有限元分析,保证了两次提升的安全性和可行性。细节处多次创新,确保工程得以安全、优质、经济合理的顺利实施。

The curved steel rail outside the plane is novel and unique.The four layer space steel truss suspends4levels of plane truss,and the corridor shape is curved arc.Combined with its characteristics and construction conditions,a new lifting method of"cumulative lifting first,then overall lifting"is creatively adopted.Through the analysis of three-dimensional model,determine the key lifting point,and the lifting process,bracket,hanger,finite element analysis,to ensure the safety and feasibility of the two lifting.The details have been innovated many times to ensure that the project can be implemented safely,economically and reasonably.