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首页> 外文期刊>Construction and Building Materials >Cyclic behavior of continuous reinforced concrete haunched beams with transverse reinforcement designed to fail in shear
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Cyclic behavior of continuous reinforced concrete haunched beams with transverse reinforcement designed to fail in shear

机译：连续配筋钢筋混凝土弯剪梁的循环性能研究。

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摘要

Research results and interpretations of the testing of five prototype continuous reinforced concrete beams (four haunched and one prismatic) designed to develop a shear failure under increasing cyclic loading are presented. Subject beams were tested with minimum shear reinforcement. The studied haunched length was one-third the effective span of the beam. The considered angles of slope of haunch from horizontal vary from 0 degrees (prismatic) to 10 degrees Increasing cyclic tests were displacement-controlled, and two cycles at the same displacement were set in the displacement history which considers a geometrical increment of target displacements. Differences in the cyclic shear behavior of haunched beams with respect to prismatic beams were monitored in terms of cracking patterns, stiffness and strength degradation and energy dissipation. The obtained results from the increasing cyclic testing in continuity conditions allow one to corroborate what it was observed in previous testing for simply supported beams: reinforced concrete haunched beams seem to be more efficient than reinforced concrete prismatic beams, even when they fail in shear. (C) 2017 Elsevier Ltd. All rights reserved.
机译：给出了五种原型钢筋混凝土连续梁（四根弯角和一个棱柱形）的研究结果和测试解释，这些梁被设计为在不断增加的循环荷载下产生剪切破坏。用最小的剪切钢筋测试了主题梁。研究的弯曲长度是光束有效跨度的三分之一。考虑到的水平倾斜角度从0度（棱形）到10度变化递增循环测试受位移控制，并且在位移历史中设置了两个位移在相同位移下，考虑目标位移的几何增量。相对于棱柱形梁，对悬臂梁的循环剪切行为的差异进行了监测，包括开裂形式，刚度和强度下降以及能量耗散。在连续性条件下不断增加的循环测试中获得的结果证实了先前测试中对简单支撑梁的观察结果：即使是钢筋混凝土棱形梁，即使剪力破坏，它们似乎也比钢筋混凝土棱柱梁更有效。 （C）2017 Elsevier Ltd.保留所有权利。

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