Experimental Research on RC Beams Strengthened with High Strength Steel Wire Mesh and High Performance Mortar under Low Velocity Impact

张伟; 廖维张; 田志敏

doi:10.13409/j.cnki.jdpme.2014.03.018

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Experimental Research on RC Beams Strengthened with High Strength Steel Wire Mesh and High Performance Mortar under Low Velocity Impact

更新时间：2025-12-11

- Experimental Research on RC Beams Strengthened with High Strength Steel Wire Mesh and High Performance Mortar under Low Velocity Impact
- Vol. 34, Issue 3, Pages: 359-364(2014)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2014.03.018
  CLC： U375.1
- Published：2014
- 稿件说明：
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[1]张伟,廖维张,田志敏.低速冲击下高强钢绞线网-高性能砂浆加固钢筋混凝土梁试验研究[J].防灾减灾工程学报,2014,34(03):359-364.

张伟, 廖维张, 田志敏. Experimental Research on RC Beams Strengthened with High Strength Steel Wire Mesh and High Performance Mortar under Low Velocity Impact[J]. 2014, 34(3): 359-364.
[1]张伟,廖维张,田志敏.低速冲击下高强钢绞线网-高性能砂浆加固钢筋混凝土梁试验研究[J].防灾减灾工程学报,2014,34(03):359-364. DOI： 10.13409/j.cnki.jdpme.2014.03.018.

张伟, 廖维张, 田志敏. Experimental Research on RC Beams Strengthened with High Strength Steel Wire Mesh and High Performance Mortar under Low Velocity Impact[J]. 2014, 34(3): 359-364. DOI： 10.13409/j.cnki.jdpme.2014.03.018.

摘要

研究了高强钢绞线网-高性能砂浆加固钢筋混凝土梁的抗低速冲击性能

利用落锤冲击试验法对4根简支钢筋混凝土梁进行对比试验研究

其中1根为普通梁

3根为加固梁

通过分析加固前后梁的破坏形态

结合挠度变化、钢筋的应变以及加速度的时程曲线

对比得到了钢筋混凝土梁加固后的抗冲击性能。研究结果表明:加固后钢筋混凝土梁的抗冲击能力显著提高

钢绞线和砂浆作为外加层

不仅增加了梁的抗弯剪能力和刚度

提高了结构的耗能能力

而且限制了裂缝的发展

使梁的整体性和延性更好;在相同冲击作用下

钢绞线直径的增加能适当提高结构的抗冲击性能。

Abstract

This paper studies the impact resistance properties of RC beams strengthened with high strength steel wire mesh and high performance mortar under low velocity impact.Drop hammer impact test is conducted on 4simply supported RC beams

including 1RC beam and 3strengthened RC beams.Through analyzing the failure pattern and the curves of deflection

strain and acceleration of steel

the impact resistance before and after strengthening are studied.The results show that the impact resistance properties of the RC beams is highly improved

the high strength steel wire mesh and high performance mortar as the strengthening layer not only make a contribution to improve the shear-resistance

bend-resistance and rigidity and ability of energy dissipation

but also prevent the development of cracks and increase the ductility of RC beams.Under the same impact

increasing the diameter of the steel wire mesh could improve the impact resistance of the structures.

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references

高强钢绞线网-聚合砂浆加固大偏心受压柱试验研究 [J]. 张立峰,程绍革,姚秋来,王忠海,岳茂光. 工程抗震与加固改造 . 2007(03)

钢筋混凝土梁在低速冲击下的变形与破坏研究 [J]. 周泽平,王明洋,冯淑芳,钱七虎. 振动与冲击 . 2007(05)

钢筋混凝土梁在低速冲击下的计算方法 [J]. 王明洋,王德荣,宋春明. 兵工学报 . 2006(03)

钢筋混凝土梁在低速撞击下的动力响应 [J]. 宋春明,赵跃堂,邓永红. 岩土力学 . 2005(S1)

高强不锈钢绞线网-渗透性聚合砂浆抗剪加固的试验研究 [J]. 聂建国,蔡奇,张天申,王寒冰,秦凯. 建筑结构学报 . 2005(02)

高强不锈钢绞线网-渗透性聚合砂浆抗弯加固的试验研究 [J]. 聂建国,王寒冰,张天申,蔡奇,秦凯. 建筑结构学报 . 2005(02)

Dynamic response and behavior of reinforced concrete slabs under impact loading [J] . M. Zineddin,T. Krauthammer. International Journal of Impact Engineering . 2006 (9)

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