Comparative study of the negative bending behaviour of corrugated web steel–concrete composite beams using NC, ECC and UHPC

Wu, Fangwen; Fan, Zhou; He, Lanqing; Liu, Shuo; Zuo, Jian; Yang, Fei

doi:10.1016/j.engstruct.2023.115925

Cited by 13 publications

(2 citation statements)

References 27 publications

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“…[14][15][16] Firstly, chloride ions will enter the interior of the concrete and combine with calcium ions in the cement stone to form calcium chloride, which will damage the structure of the cement stone in the concrete. 17 At the same time, sulfate will react with calcium ions in concrete to form gypsum, thereby damaging the cement stone structure of concrete. 18 The combined action of chloride and sulfate can increase the concentration of chloride ions and sulfate inside the concrete, further damaging the cement structure in the concrete.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is important to understand the combined effect of chloride and sulfate on the performance of concrete 14‐16 . Firstly, chloride ions will enter the interior of the concrete and combine with calcium ions in the cement stone to form calcium chloride, which will damage the structure of the cement stone in the concrete 17 . At the same time, sulfate will react with calcium ions in concrete to form gypsum, thereby damaging the cement stone structure of concrete 18 .…”

Section: Introductionmentioning

confidence: 99%

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Research on improving the durability performance of damaged concrete based on ultra high performance concrete repair

Wang,

Liu,

Zhang

et al. 2023

Engineering Reports

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This article uses ultra‐high performance concrete (UHPC) to repair damaged concrete and analyzes the durability performance of the repaired concrete. Among them, three erosion solutions with a mass concentration of 2.8% NaCl + 0.29% Na2SO4, 5% NaCl, and 5% NaCl + 10% Na2SO4 were designed to soak the concrete specimens for 1 to 3 months. Taking the SWC test group as an example, when the concrete test block undergoes 30 dry wet cycles and the erosion depth is 20 mm, the difference in chloride ion concentration under different diffusion dimensions is not significant. After 90 dry wet cycles, at a depth of 20 mm, the chloride ion concentration inside the concrete in the three‐dimensional diffusion state reached 3 times that of one‐dimensional diffusion, and the chloride ion concentration in the two‐dimensional diffusion state also reached 2 times that of one‐dimensional diffusion. At a depth of 30 mm, a small amount of chloride ion content was also found in the two‐dimensional diffusion and three‐dimensional diffusion.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on improving the durability performance of damaged concrete based on ultra high performance concrete repair

Wang,

Liu,

Zhang

et al. 2023

Engineering Reports

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Shear behavior of stud and SFCBs‐reinforced PBL composite connectors in steel‐concrete structures

Wu,

Zhao,

Liu

et al. 2024

Structural Concrete

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In order to fully utilize the advantages of stud and perfobond leiste (PBL) connectors, a new composite shear connector was proposed in which the studs were welded to the H‐beam of the PBL shear connectors. In addition, to further improve the durability performance of the structure, steel‐fiber‐reinforced polymer composite bars (SFCBs) were used to replace steel rebars as penetrating rebars. In this study, the shear behaviors of SFCBs‐reinforced composite shear connectors were investigated by push‐out tests. The effects of the number of studs, the number of holes, and the type of penetrating rebars on the failure mode, load–slip curve, and shear behavior of the composite shear connectors were analyzed. The specimens' failure modes were mainly shearing the studs and crushing the concrete. Increasing the number of studs and holes has resulted in an increase of at least 7.47% in the shear resistance and 12.36% in the stiffness. SFCB had little effect on the shear resistance and reduced the stiffness but could improve ductility, with a maximum improvement of 11.49%. Additionally, a finite element model was established for parametric analysis. The results showed that the diameter of the SFCB and hole had a significant impact on the shear resistance. An equation for calculating the shear resistance based on the contributions of various components has been established that was applicable to composite shear connectors and has good accuracy and applicability.

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Exact solution and case studies for composite I-beam with corrugated steel web

Guan,

Xu,

Yue

et al. 2023

Case Studies in Construction Materials

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Comparative study of the negative bending behaviour of corrugated web steel–concrete composite beams using NC, ECC and UHPC

Cited by 13 publications

References 27 publications

Research on improving the durability performance of damaged concrete based on ultra high performance concrete repair

Research on improving the durability performance of damaged concrete based on ultra high performance concrete repair

Shear behavior of stud and SFCBs‐reinforced PBL composite connectors in steel‐concrete structures

Exact solution and case studies for composite I-beam with corrugated steel web

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