高烈度区钢管混凝土叠合柱节点设计与施工

Design and Construction of Steel Tube-reinforced Concrete Column Joints in High Earthquake Intensity Area

昆明长水国际机场改扩建工程S1卫星厅位于高烈度区,主体结构柱采用钢管混凝土叠合柱。混凝土梁截面大,钢筋密集。梁柱节点受力复杂,需满足抗震设防要求。根据工程特点,梁柱节点采用组合式钢牛腿,梁主筋采用套筒机械连接,并浇筑自密实混凝土,保证施工质量,取得良好施工效果。

The S1 Satellite Hall of Kunming Changshui International Airport reconstruction and expansion project is located in the high intensity area.The main structural columns are steel tube-reinforced concrete columns.The concrete beam has large section and dense reinforcement.The stress of the beam column joints is complex,so it needs to meet the requirements of seismic fortification.According to the characteristics of the project,the combined steel corbel is used for the beam column joints,the sleeve mechanical connection is used for the main reinforcement of the beams,and the self compacting concrete is poured to ensure the construction quality and achieve good construction effect.