Mechanical Performance of Steel-Concrete Composite Beams Subjected to a Hogging Moment

Ding

Advances in Civil Engineering

et al. 2019

This study investigates the flexural strength of simply supported steel-concrete composite beams under hogging moment. A total of 24 composite beams are included in the experiments, and ABAQUS software is used to establish finite element (FE) models that can simulate the mechanical properties of composite beams. In a parametric study, the influences of several major parameters, such as shear connection degree, stud arrangement and diameter, longitudinal and transverse reinforcement ratios, loading manner, and beam length, on flexural strength were investigated. Thereafter, three standards, namely, GB 50017, Eurocode 4, and BS 5950, were used to estimate the flexural strength of the composite beams. These codes were also compared with experimental and numerical results. Results indicate that GB 50017 may provide better estimations than the other two codes.

Section: Materials and Specimensmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flexural Capacity of Steel‐Concrete Composite Beams under Hogging Moment

Ding

Advances in Civil Engineering

et al. 2019

Journal of Civil Engineering and Management

“…The influence of steel fibres in flexural behaviour is much greater comparing to compression due to the duc-tile behaviour of SFRC in the area of the stress rupture, with the development of residual strength after the cracking of the concrete (Marar et al 2001;Nelson et al 2002;Paine et al 2002). Depending on the volume and type of steel fibre added, the post-cracking behaviour of the concrete can result in strength levels that exceed those of the cracking, with great ductility (Johnston 1980;Taheri et al 2012;Vandewalle 2000;Abas et al 2013;Lin et al 2014aLin et al , 2014b. A volume of steel fibres of less than 0.5% can have a negative effect on the static strength.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of flexural behaviour of layered steel fibre reinforced concrete beams

Pérez

Valivonis

Šalna

et al. 2017

The building of structures from steel fibre reinforced concrete (SFRC) in the external and conventional reinforced concrete (RC) in the internal layer represents an economical alternative of structures effectively using SFRC. The paper presents test results of flexural behaviour of layered beams with SFRC external layers and RC internal layer. The behaviour of these beams is compared to test results of SFRC and conventional RC beams. The test results show, that the flexural load capacity for all series of beams is nearly similar, but the deflections of layered beams are less comparing to monolithic ones. It also been shown that the equations indicated in the Eurocode 2 can be used to design the flexural reinforcement in layered SFRC beams.

“…Lin [7,8] has studied the behavior of composite steel-concrete beams under a negative bending moment. Loaddisplacement relationships, crack formation and its developing process, slip distribution at the interface of steel girder and concrete slab, and the flexural strain results of shear connectors were measured and studied.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Method of Composite Steel-Concrete Beams Considering Interface Slip and Uplift

Wang¹,

Cong²,

Zhang³

et al. 2017

TOCIEJ

Introduction: In order to analyze the displacement and internal force of composite steel-concrete beams under the vertical load, The finite element solution of composite steel-concrete beams under concentrated loads considering the existence of interface slip and vertical uplift based on the basic idea of elastic mechanics was derived in this paper. Method: A new kind of stiffness equation of bar system was got and its correctness was demonstrated with experimental value, the problem of composite beams considering the existence of interface slip and vertical uplift was solved, avoiding to produce large amount of calculation with the body element method. Results and Conclusion: It can be seamlessly integrated into the current engineering design software, which provides effective help to practical engineering problems.