Research on flexural behavior of embedded double inverted T-shaped steel-concrete composite beam with web
In this paper,the upper part of the double inverted T-shaped steel web connected by the diaphragm was grooved and embedded into the concrete flange.Together with the transverse reinforcement at the bottom of the plate,a new type of embedded double inverted T-shaped steel-concrete composite beam with concrete tenon structure was formed.The bending performance test of the specimen was designed,the failure mode of the speci-men was analyzed and summarized,and the mechanical indexes such as stiffness,bearing capacity and ductility were evaluated based on the test results such as load-deflection curve and strain distribution characteristics.The beam meets the requirements of complete shear connection and has good overall bending resistance.According to the test and the finite element simulation,the design method of bending bearing capacity is proposed,and the er-ror between the test results and the theoretical calculation results is 2.7％,which is in good agreement.The theo-retical formula can be used as the basis for structural design.
web embedded double-inverted T-shaped steel-concrete composite beambending resistancebend-ing capacity
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