Reinforced Concrete (RC) deep beams are commonly used in structural design to transfer vertical loads when there is a vertical discontinuity in the load path. Due to their deep geometry, the force distribution within the RC deep beams is very different than the RC shallow beams. T here are some strut and tie model (STM) already been developed for RC deep beams. However, most of these models are developed for RC deep beams with the simply supported boundary condition, which do not apply for RC deep beams with the fix-ended condition. In this paper, five fixed-end RC deep beams have been tested experimentally which were subjected to monotonic and cyclic loads. Also, a simple ST M was proposed to simulate the load capacity and failure mode of fix -ended RC deep beams. T he proposed ST M has the main strut and sub struts to simulate the force distribution within the RC deep beams. T his ST M were verified using five fixed-end RC deep beams subjected to monotonic and cyclic loads and compared to the response of 31 additional independent experimental tests. T he result shows the newly proposed ST M can simulate the load capacity and failure mode of fix-ended RC deep beams very well.
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