Evaluation of a Modified Truss-Model Approach for Beams in Shear
Evaluation of a Modified Truss-Model Approach for Beams in Shear
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DOI：
10.14359/3145
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发表时间：
1991-09
影响因子：
1.8
通讯作者：
J. Ramirez;J. Breen
中科院分区：
文献类型：
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作者：
J. Ramirez;J. Breen
提出了一种带腹筋梁的变倾角和混凝土贡献的有限桁架模型设计方法，是一种可行的、经济的设计工具。将计算值与钢筋混凝土和预应力混凝土梁抗剪破坏的大量试验结果进行了比较。结果表明，改进的桁架模型方法是保守的，与试验结果吻合较好。为了补充钢筋混凝土梁变角度桁架模型的强度，提出了混凝土贡献递减的建议。
A limited truss model design approach with variable angle of inclination diagonals and a concrete contribution for beams with web reinforcement is proposed as a viable and economic design tool. Computed values were compared with a wide range of test results of reinforced and prestressed concrete beams failing in shear. The modified truss model approach was shown to be conservative and in good agreement with test results. A diminishing concrete contribution is proposed to supplement the strength of the variable angle truss model for reinforced concrete beams.