某工程大跨空间网架整体提升施工技术

Integral Lifting Construction Technology for the Long-span and Large-area Space Grid Structure in Some Project

针对西飞公司369号厂房的大面积、大跨度的结构特点和施工难度,详细介绍了整体提升、支撑体系设置、提升平台设计、负载转移、提升下吊点设置等关键技术及难点,并通过对施工全过程有限元仿真分析表明,该技术高效、合理,保证了工程质量和施工安全,实现了网架各吊点同步提升和卸载落位。

Based on the structural characteristics and construction difficulties of the large-area and long-span for the No.369 powerhouse of Avic Xian Aircraft Industry Company Ltd.,the key construction technology and difficulties for the integral lifting,supporting system,designing of lifting platform,load transfer and the setting of lower anchoring point,etc.are described in detail.At the same time,FEA simulation analysis on the whole construction process shows that the construction technology is efficient and rational.As a result,the engineering quality and construction safety are guaranteed,and synchronous lifting and unloading for each lifting point are attained.