某工程实腹式大板梁加固改造及卸载提升施工技术  

Reinforcement Reconstruction and Unloading Lifting Construction Technology of Solid⁃web Large Slab Beam in a Project

作　　者：黄伟 白海 黄文华 李旻 HUANG Wei;BAI Hai;HUANG Wenhua;LI Min(MCC(Shanghai)Steel Structure Technology Co.,Ltd.,Shanghai200941,China)

机构地区：[1]中冶(上海)钢结构科技有限公司,上海200941

出　　处：《施工技术(中英文)》2025年第2期98-102,107,共6页Construction Technology

基　　金：中冶(上海)钢结构科技有限公司科研课题(ZR2022-11)。

摘　　要：针对某工程屋面实腹式大板梁改造施工,提出采用两点同步液压卸载单根大板梁和四点同步液压提升3根大板梁的方法,并采取在卸载过程中加强单根大板梁平面外稳定的措施。这些方法解决了在无法使用大型起重机吊装的工况下,利用原有结构原位进行大型构件拆除和安装的问题。实践表明,该系列方法在该项目大板梁改造施工中的应用较成功,为民用建筑领域大型构件改造施工提供了解决方案。Aiming at the reconstruction of the solid⁃web large slab beam of a project roof,the method of using two⁃point synchronous hydraulic unloading single slab beam and four⁃point synchronous hydraulic lifting three slab beams is proposed,and the measures to strengthen the out⁃of⁃plan stability of single slab beam during unloading are adopted.Under the condition that large cranes cannot be used for hoisting,the problem of dismantling and installing large components in situ by using the original structure is solved.The practice shows that the series of methods are successfully applied in the reconstruction of the large slab beam of the project,which provides a solution for the reconstruction of large components in the field of civil construction.

关 键 词：大板梁 加固 改造 卸载 提升 施工技术 

分 类 号：TU745[建筑科学—建筑技术科学]