Behavior of Grouted Sleeve Splice for Steel Profile under Tensile Loadings

Materials

Peng Zhao¹  Feng Lin² 

[1] Department of Structural Engineering, Tongji University, Shanghai 200092, China;Key Laboratory of Performance Evolution and Control for Engineering Structures (Tongji University), Ministry of Education, Shanghai 200092, China;

关键词: steel profile;    grouted splice;    grout-filled sleeve;    anchorage length;    FEM model;   

DOI  :  10.3390/ma13092037

来源: DOAJ

【 摘 要 】

Two groups of grouted sleeve splices for steel profile were tested to investigate their tensile behavior, serving as pilot studies for novel prefabricated reinforced concrete shear wall structures. In the first group, four splice specimens with different embedded lengths of steel profile were monotonic tensile loaded to determine an appropriate anchorage length. In the second group, three splice specimens with a conservative anchorage length of steel profile were tested under repeated tensile loading, cyclic loading at high stress, and cyclic loading at large strain, respectively. Parametric studies were then conducted on sleeve thickness, grout strength, offset of steel profile, and misalignment of steel profile using finite element method (FEM)-based models. The results show that the splices in the second group behaved well with minor residential deformation and almost no pinching effect. The optimized sleeve thickness could be appropriately determined using FEM models. The compressive strengths of the grout exceeding a threshold value and the offset of steel profile had minor influence on splice behavior, while the misalignment of steel profile had a pronounced effect.

【 授权许可】

Unknown