大跨度悬索式结构高空内灌混凝土施工技术

Construction Technology of High Altitude Inner Pouring Concrete for Large-span SuspensionStructure

阜宁文体中心项目游泳馆为大跨度内灌混凝土箱梁及钢拉杆组合体系,待主体结构安装完成,钢拉杆张拉完成,整体卸载后进行混凝土灌注,采用泵送顶升法进行自密实混凝土压灌。通过总结研究大跨度悬索式结构混凝土顶升的施工工艺,实现大跨度钢梁高空灌浆在实际施工中的进一步应用,为同类工程做施工借鉴。

The Natatorium of Funing Cultural and Sports Center Project is a large-span cast-in-place concrete box girder and steel tie rod combination system.After the installation of the main structure is completed,the steel tie rod is tensioned,and the concrete is poured after the overall unloading,and the self-compacting concrete is pressure poured by pumping jacking method.By summarizing the construction technology of concrete jacking for large-span suspension structures,further application of high-altitude grouting for large-span steel beams in practical construction can be achieved,providing reference for similar projects in construction。