北京大兴国际机场中南指廊钢结构工程群塔应用技术

APPLICATION OF GROUP TOWER TECHNIQUE IN MIDDLE-SOUTH AIRSIDE CONCOURSE STEEL STRUCTURE PROJECT OF BEIJING DAXING INTERNATIONAL AIRPORT

北京大兴国际机场航站楼中南指廊钢结构工程面对吊运面积大,地基呈多段不连续、大高差、阶梯状,塔式起重机群错高分层多、塔式起重机安拆作业场地不佳等恶劣现场环境,制订了保证塔式起重机覆盖面积、塔式起重机法定高差及水平间距、塔式起重机安拆作业场地有效、塔式起重机基础强度满足要求的整套应用技术,完成了钢结构工程吊装任务.

The middle-south airside concourse steel structure project in the terminal building of Beijing Daxing International Airport encountered many difficult site construction conditions, such as discontinuous, segmented and staged foundation with big elevation difference, tower crane group arranged on many different elevation, adverse working conditions for tower crane installation and dismantlement, etc. Considering these on-site conditions, a set of application techniques were designed to guarantee the working area o f tower crane, legal height difference and horizontal spacing among tower cranes, effective working area for tower crane installation and dismantlement, as well as sufficient strength of tower crane base, successfully fulfilling the steel structure lifting construction.