[1]樊友景,樊大为..钢纤维增强混凝土梁的抗剪强度研究[J].郑州大学学报(工学版),2009,30(03):9-12.[doi:10.3969/j.issn.1671-6833.2009.03.003]
　FAN Youjing,Fan Dawei.Study on shear strength of steel fiber reinforced concrete beams[J].Journal of Zhengzhou University (Engineering Science),2009,30(03):9-12.[doi:10.3969/j.issn.1671-6833.2009.03.003]
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钢纤维增强混凝土梁的抗剪强度研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
30卷
期数:
2009年03期
页码:
9-12
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Study on shear strength of steel fiber reinforced concrete beams
作者:
樊友景; 樊大为.
郑州大学,土木工程学院,河南,郑州,450001, 郑州大学,综合设计研究院,河南,郑州,450002
Author(s):
FAN Youjing; Fan Dawei
关键词:
钢纤维混凝土;  剪切强度;  塑性分析;  破坏机构
Keywords:
DOI:
10.3969/j.issn.1671-6833.2009.03.003
文献标志码:
A
摘要:
根据钢纤维混凝土的塑性理论,确定了钢筋、混凝土以及钢纤维混凝土的屈服条件,建立了具有两个位移参变量的钢纤维增强钢筋混凝土梁斜截面破坏机构,应用塑性分析的上限定理,由能量法推导出斜截面剪切破坏荷载的函数表达式,对其进行优化求解得到极限荷载.通过调整钢纤维混凝土层厚,使计算公式同时适用于普通钢筋混凝土梁、钢筋钢纤维增强部分混凝土梁和钢筋钢纤维增强全截面混凝土梁的斜截面剪切破坏的极限荷载计算.实例计算表明:计算结果与试验结果吻合良好,证明了计算理论及方法是正确的.
Abstract:

According to the plastic theory of steel fiber concrete, the yield conditions of rebar, concrete and steel fiber concrete were determined, and the oblique section failure mechanism of steel fiber reinforced concrete beam with two displacement parameters was established, and the upper limit theory of plastic analysis was applied to derive the function expression of shear failure load of oblique section by energy method, and the limit load was obtained by optimizing and solving it. By adjusting the layer thickness of steel fiber concrete, the calculation formula is applied to the ultimate load calculation of the oblique section shear failure of ordinary reinforced concrete beams, reinforced steel fiber reinforced partial concrete beams and reinforced steel fiber reinforced full-section concrete beams. The example calculation shows that the calculation results are in good agreement with the experimental results, which proves that the calculation theory and method are correct.

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更新日期/Last Update: 1900-01-01