Study on Mechanical Behaviors and Calculation of Shear Strength of Steel Truss Reinforced Concrete Deep Beams

Abstract:

Based on strut-and-tie model (STM) in deep beams, steel truss reinforced concrete (STRC) deep beam was developed. Experimental investigations of mechanical performances of STRC deep beams were carried out, and results show that STRC deep beam is of high ultimate bearing capacity, large rigidity and good ductility; Strut-and-tie force transference model is formed in STRC deep beams, and loads can be transferred in the shortest and direct way. Then Steel reinforced concrete (SRC) strut-and-tie model (SSTM) for determining the shear strength of STRC deep beams is proposed. The contribution of SRC diagonal strut, longitudinal reinforcements, stirrups and web reinforcements to the shear strength of STRC deep beams are determined with consideration of softened effects of concrete, and for safe consideration, superposition theory is employed for SRC struts. Computer programs are developed to calculate the shear strength of STRC deep beams and verified by experimental results.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 514-520
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.514
• Online since: May 2011
• Authors: Chun Yang, Ming Ji He, Jian Cai, Yan Sheng Huang, Yi Wu
• Keywords: Deep Beam, Experimental Investigation, Mechanical Behavior, Softened Effects, SRC Strut-and-Tie Model, Steel Truss Reinforced Concrete

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