国家会议中心二期项目内力主动导入控制技术  

Active Import Control Technology for the National Convention Center Phase II Project

作　　者：齐翰 QI Han(Beijing Construction Engineering Group Co.,Ltd.,100055,Beijing,China)

机构地区：[1]北京建工集团有限责任公司,北京100055

出　　处：《建筑技术》2024年第21期2583-2587,共5页Architecture Technology

摘　　要：钢结构整体卸载技术作为钢结构施工的关键施工工艺,不仅影响整体结构的施工安全,也是至关重要的一个环节。针对国家会议中心二期项目20 m大跨度巨型转换桁架的卸载过程进行分析,提出内力主动导入控制技术,此技术为一种提前控制结构内力,可以携带上部结构体系进行转换桁架卸载的施工方法,详细分析此种方法的优缺点。并通过获取卸载过程中的数据,分析得出一种钢结构卸载施工的新思路及建议。The overall unloading technology of steel structures,as a key construction process in steel structure construction,not only affects the construction safety of the overall structure,but also is a crucial link.An analysis is conducted on the unloading process of the 20m large-span giant conversion truss in the National Convention Center Phase II project,and an active internal force introduction control technology is proposed.This technology is a construction method that can control the internal forces of the structure in advance and carry the upper structural system for the unloading of the conversion truss.The advantages and disadvantages of this method are analyzed in detail.And by obtaining data during the unloading process,a new approach and suggestions for steel structure unloading construction are analyzed.

关 键 词：大跨度巨型 转换桁架 整体卸载 内力主动导入 监测系统 

分 类 号：TU74[建筑科学—建筑技术科学]