劲性柱钢筋混凝土梁节点施工技术应用

APPLICATION OF CONSTRUCTION TECHNOLOGY OF RIGID COLUMN CONCRETE BEAM JOINT

钢结构以其自重轻、施工效率高、环保节能等优点在大型公建项目中得到普遍应用,其中地下混凝土现浇剪力墙结合地上高层钢结构框架的形式较为常见。钢结构与混凝土现浇结构节点的施工对工程的安全可靠性十分重要。北京某医院扩建项目劲性柱混凝土节点采用十字柱转换箱形柱及搭接板焊接梁钢筋的形式锚固受力,针对施工的难点和重点进行总结,以供类似项目参考。

Steel structure is widely used in large-scale public construction projects because of its advantages such as light weight,high construction efficiency,environmental protection and energy conservation,among which the form of underground concrete cast-in-situ shear wall combined with ground high-rise steel structure frame is more common.The construction of joints between steel structure and cast-in-place concrete structure is very important to the safety and reliability of the project.The rigid column concrete joint of a hospital expansion project in Beijing is anchored and stressed in the form of cross column transfer box column and lap plate welded beam reinforcement.The difficulties and key points of construction are summarized for reference of similar projects.