Ultimate Bearing Capacity of Headed Studs in Tensile Concrete Slab

Abstract:

Abstract. In the presented paper, reverse push-out test method was put forward and applied in the ultimate bearing capacity experiments of studs with concrete slab in tension. Ultimate bearing capacity experiments were carried out on 22 reverse push-out specimens composed of C50 or C40 concrete, 14MnNbq steel girder and Φ22studs. Results showed that ultimate bearing capacity of studs, p_u, in tensile concrete slab is controlled by concrete failur, concrete strength, studs arragement and reinforcement ratio are the main influence factors of p_u. Compared with that in compressive concrete, p_u of Φ22 studs in tensile concrete is reduced about 30% averagely. According to the test results, a fitted load-slip relationship curve and a regression formula of p_u for studs in tensile concrete were put forward, calculated results were in good agreement with the test results.

• Periodical: Advanced Materials Research (Volumes 163-167)
• Pages: 11-15
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.11
• Online since: December 2010
• Authors: Wen Qi Hou, Mei Xin Ye, Ye Zhi Zhang
• Keywords: Composite Structure, Load-Slip Relationship, Stud, Tensile Stress, Ultimate Bearing Capacity

References

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