To study the interfacial bond–slip behavior of shaped steel–engineered cementitious composite (ECC) materials, nine full-scale H-shaped steel–ECC specimens were tested. Theoretical equations for the ultimate and residual bond stresses were established via statistical fitting. A tensile constitutive model of the ECC was proposed, and cohesive elements were used in a finite element (FE) analysis to simulate the shaped steel–ECC interface. The results show that the failure mode of the tested specimens is a splitting failure with multiple typical splitting and intumescent cracks in the ECC material. The bond stress has a non-uniform distribution, and the outer flange of the H-shaped steel bears most of the load. Compared with the test and FE results, Eqs. (6), (11) exhibit good computational accuracy. The rationality of the FE modeling strategy, especially the manner of addressing the issues of tensile constitutive model of ECC and contact of shaped steel and ECC, is verified.

为了研究异型钢-工程胶结复合材料（ECC）材料的界面粘结-滑移行为，测试了九个完整的H型钢-ECC标本。通过统计拟合建立了极限和残余粘结应力的理论方程。提出了ECC的拉伸本构模型，并在有限元（FE）分析中使用内聚元素来模拟成形的钢-ECC界面。结果表明，被测样品的破坏模式为分裂破坏，在ECC材料中具有多个典型的分裂和膨胀裂纹。粘结应力具有不均匀的分布，并且H形钢的外凸缘承受了大部分载荷。与测试和有限元结果相比，（6），（11）具有良好的计算精度。有限元建模策略的合理性，