Abstract
The composite T-girders include concrete flange plates and steel beams, which are connected by shear connectors. The longitudinal stress about concrete plate is due to non-uniform distribution on cross section because of the shear lag effect. A differential equation of longitudinal forces at transverse section flange and cantilever flange is separately established according to the strain compatibility and the force equilibrium conditions about a composite T-girder. The method of separation of variables is used to solve the differential equation about the simply supported composite T-girder. The shear lag coefficient is detrmined by the ratio between stress calculated by this method and stress odetrmined by elementary beam theory. An example of such calculation is given to approve its applicability.
Highlights
The composite T-girders are commonly used in construction, because of the mechanical characteristic of steel and concrete, namely the use of concrete compressive and steel tensile capacity
The shear lag effect can result in obvious increase in the longitudinal stress near the edge of the flange and cause stress concentration
The example of the transverse section is shown in Fig. (3)
Summary
The composite T-girders are commonly used in construction, because of the mechanical characteristic of steel and concrete, namely the use of concrete compressive and steel tensile capacity. The shear lag effect can result in obvious increase in the longitudinal stress near the edge of the flange and cause stress concentration. Due to shear lag effects, it can cause stress concentration in structure, leading to structural damage [2]. M. Sennah et al researched shear resistance of the surface of the steel-concrete composite beams with cantilever flange [9, 10]. Sennah et al researched shear resistance of the surface of the steel-concrete composite beams with cantilever flange [9, 10] Those methods have different characteristics, but have complex calculation and analysis to calculate composite section. The same method is used to calculate shear lag effect of composite box girders in reference [6].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
