T形开孔肋连接件基本力学性能的试验  

Experiments on Mechanical Properties of T-Shape Perforated Rib Connector

作　　者：苏庆田[1] 汪瑞[1] 王巍[1] 

机构地区：[1]同济大学桥梁工程系,上海200092

出　　处：《结构工程师》2011年第6期100-105,共6页Structural Engineers

基　　金：国家自然科学基金(50708075)

摘　　要：在钢与混凝土组合结构中连接件是能够保证钢与混凝土协同工作的关键构件,不同的连接件形式其力学性能相差较大,对组合结构的受力产生较大的影响。提出了一种新型的连接件-T形开孔肋,并通过推出试验测试了这种连接件的基本力学性能,通过与开孔板连接件推出试验结果对比,表明T形开孔肋连接件的抗剪强度比开孔板连接件的提高20%,其抗剪刚度比开孔板连接件也有较大的提高,特别是达到极限荷载时T形开孔肋连接件的延性为开孔板连接件的3.5倍。Connectors are key parts in steel-concrete composite structures to ensure steel and concrete can work together efficiently.The mechanical properties of different connections behave a larger difference and they affect the mechanical behavior of composite structures greatly.In this paper a new type connector,T-shape perforated rib connector,was presented,and its mechanical properties were tested by push-out tests.Comparing to the push-out test results of perfobond rib connector,the shear strength of T-shape perforated rib connector increased 20 percent than that of the perfobond rib connector,and the shear stiffness of T-shape perforated rib connector was larger than that of the perfobond rib connector,especially the slip corresponding to the ultimate load of T-shape perforated rib connector was 3.5 times that of the perfobond rib connector.

关 键 词：组合结构 T形开孔肋连接件 刚度 强度 延性 

分 类 号：TU398.9[建筑科学—结构工程]