This study assesses the seismic performance of steel-reinforced concrete (SRC) composite columns connected to reinforced concrete (RC) beam joints, and their ability to dissipate seismic energy through inelastic deformations. In this article, experimental aspects regarding the seismic performance of high-ductility and low-ductility steel–concrete composite frame were investigated. The principle design parameter in this study was ductility, which is considered a conceptual framework in Efficiency-Based Seismic Engineering. Thus, attention was focused on assuring various ductility ranges of joints obtained through a detailed study of the Turkish Earthquake Code (TEC 18) [Ministry of Public Works and Housing.: Türkiye Bina Deprem Yönetmeliği (Turkey’s Earthquake Code for Buildings). Official Gazette (2018) (in Turkish).]. After identifying deficiencies and the energy dissipation capacity in the newly proposed joints, two half-scaled frames with specific ductility-related designs were constructed, instrumented, tested, and analyzed. The specimens were tested under displacement-controlled lateral cyclic loading that incorporated constant axial loading to create cyclic tension and compression facets across the joint areas. The test results proved that the SRC column-RC beam frames employing an extra column reinforcement ratio exhibit slightly better seismic performance. Due to the presence of structural steel, the shear failure of the joint was effectively prevented, even after the formation of the plastic hinge on the interface of the beam. During the testing, the column rebars, to some extent, made a minor contribution to the joint strength of the specimen compared to the structural steel that absorbed almost all of the load applied to the frame.

这项研究评估了连接到钢筋混凝土（RC）梁节点的钢筋混凝土（SRC）复合柱的抗震性能，以及它们通过非弹性变形消散地震能量的能力。在本文中，研究了有关高延性和低延性钢-混凝土组合框架抗震性能的实验方面。本研究的主要设计参数是延性，这被认为是基于效率的地震工程中的概念框架。因此，注意力集中在确保通过对土耳其地震法典（TEC 18）[公共工程和住房部。：TürkiyeBina DepremYönetmeliği（土耳其《建筑物地震法》）的详细研究而获得的各种延展性范围。官方公报（2018年）（土耳其语）。]。在确定了新提出的接头的缺陷和耗能能力后，构造，测试，测试和分析了两个具有特定延性相关设计的半比例框架。在位移控制的横向循环载荷下对试样进行了测试，该载荷结合了恒定的轴向载荷，从而在整个关节区域产生了周期性的拉伸和压缩面。测试结果证明，采用额外柱加强比的SRC柱-RC梁框架具有更好的抗震性能。由于结构钢的存在，即使在梁的界面上形成了塑料铰链，也可以有效防止接头的剪切破坏。在测试期间，色谱柱会在一定程度上钢筋