十字型开孔钢板剪力键抗剪性能试验研究

武永丽; 王秀丽; 李芳军; 高越晋; 张祺

doi:10.13204/j.gyjzG22072212

十字型开孔钢板剪力键抗剪性能试验研究

doi: 10.13204/j.gyjzG22072212

武永丽¹,
王秀丽^2,3, ,,
李芳军¹,
高越晋^2,3,
张祺¹

1. 中铁二十一集团第二工程有限公司, 兰州 730070;
2. 兰州理工大学土木工程学院, 兰州 730050;
3. 西部土木工程防灾减灾教育部工程研究中心, 兰州 730050

基金项目:

国家重点研发计划（2019YFD1101004）；甘肃省建设科技攻关项目（JK2020-29，JK2020-26）。

详细信息

作者简介:
武永丽,女,1985年出生,硕士研究生,工程师,349667110@qq.com。

通讯作者:
王秀丽,女,1963年出生,教授,博士,博士生导师,1135739056@qq.com。

计量
- 文章访问数: 64
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- 被引次数: 0
出版历程
- 收稿日期: 2022-07-22

Experimental Research on Shear Performances of Cross-Shaped Perfobond Strips

WU Yongli¹,
WANG Xiuli^{2,3
, ,},
LI Fangjun¹,
GAO Yuejin^2,3,
ZHANG Qi¹

1. China Railway 21 Group No. 2 Engineering Co., Ltd., Lanzhou 730070, China;
2. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
3. Western Center of Disaster Mitigation of Ministry of Education, Lanzhou 730050, China

摘要

摘要: 为了加强大跨度钢-混凝土组合梁的界面黏结效果，结合实际工程的构造提出十字型开孔钢板剪力键。通过1组栓钉剪力键和3组十字型开孔钢板剪力键的推出试验，研究了其破坏模态及荷载-滑移曲线。结果表明：相近截面面积的十字型开孔钢板剪力键抗剪性能远高于栓钉剪力键，截面宽度和混凝土强度等级对十字型开孔钢板剪力键抗剪性能的影响最大；同时十字型开孔钢板剪力键的抗剪承载力随着开孔钢板厚度的增加而提高；抗剪刚度随着剪力键高度的增加有一定的提高。
- 十字型开孔钢板剪力键 /
- 推出试验 /
- 破坏模式 /
- 抗剪承载力 /
- 抗剪刚度
Abstract: In order to strengthen the interfacial bonding effect of long-span steel-concrete composite beams, a cross-shaped perfobond strips (PBL) was proposed based on the actual engineering structure.The push-out tests of 1 set of stud strips and 3 sets of cross-shaped PBLs were conducted.The failure modes and load-displacement curves of strips were studied.The results showed that the shear strength of cross-shaped PBL with similar cross-section areas was much higher than that of stud strips.The cross-section width and concrete strength grade had the greatest influence on the shear performance of cross-shaped PBLs.The shear capacity of cross-shaped PBLs increased with the increase of the thickness of perfobond strips.The shear stiffness increased with the increase of strip height.
- cross-shaped perfobond strip /
- push-out test /
- failure mode /
- shear capacity /
- shear stiffness

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参考文献(16)

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