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型钢–高延性水泥基复合材料(ECC)界面粘结性能综述
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Abstract:
利用高延性水泥基复合材料(ECC)良好的变形和控裂能力将其与型钢组合形成型钢–ECC组合结构，可以提高结构的延性和抗震性能。型钢–ECC界面粘结是保证两种材料协同工作、共同承载的基础。本文综述了国内外关于型钢–ECC界面粘结滑移性能的研究现状和进展，介绍了型钢–ECC及构件基本性能、型钢–ECC界面粘结性能、型钢–ECC界面粘结强度、型钢–ECC粘结应力–滑移本构关系，分析了目前存在的问题，并对型钢–ECC的未来发展前景进行展望，以期为今后ECC材料在型钢–ECC组合结构中的应用提供参考。
By utilizing the excellent deformation and crack control capabilities of high ductility engineered cementitious composites (ECC) and combining them with steel to form a shape steel-ECC composite structure, the ductility and seismic performance of the structure can be improved. The interface bonding between shape steel and ECC is the foundation for ensuring the collaborative work and joint bearing of the two materials. This article provides an overview of the current research status and progress on the bond slip performance of shape steel-ECC interface both domestically and internationally. It introduces the basic properties of shape steel-ECC and its components, the bond performance of shape steel-ECC interface, the bond strength of shape steel-ECC interface, and the bond stress slip constitutive relationship of shape steel-ECC. The existing problems are analyzed, and the future development prospects of shape steel-ECC are discussed, to provide a reference for the future application of ECC materials in shape steel-ECC composite structures.
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