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[1]江雨辰,胡夏闽,曹雪娇,等.胶合木-混凝土组合梁螺钉连接件推出试验研究[J].南京工业大学学报(自然科学版),2016,38(05):74-80.[doi:10.3969/j.issn.1671-7627.2016.05.012]
 JIANG Yuchen,HU Xiamin,CAO Xuejiao,et al.Experimental study on push-out tests of screw connectors for glulam-concrete composite beams[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(05):74-80.[doi:10.3969/j.issn.1671-7627.2016.05.012]
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胶合木-混凝土组合梁螺钉连接件推出试验研究()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年05期
页码:
74-80
栏目:
出版日期:
2016-09-28

文章信息/Info

Title:
Experimental study on push-out tests of screw connectors for glulam-concrete composite beams
文章编号:
1671-7627(2016)05-0074-07
作者:
江雨辰胡夏闽曹雪娇洪万张冰
南京工业大学 土木工程学院,江苏 南京 211800
Author(s):
JIANG YuchenHU XiaminCAO XuejiaoHONG WanZHANG Bing
College of Civil Engineering,Nanjing Tech University,Nanjing 211800,China
关键词:
胶合木-混凝土组合梁 螺钉连接件 推出试验 受剪承载力
Keywords:
glulam-concrete composite beam screw connectors push-out tests shear bearing capacity
分类号:
TU398.9
DOI:
10.3969/j.issn.1671-7627.2016.05.012
文献标志码:
A
摘要:
胶合木-混凝土组合梁中的剪力连接件是整个组合梁中至关重要的一部分。为了抵抗木梁与混凝土板之间的纵向剪力和滑移,不仅要求剪力连接件具有一定刚度,还必须具有足够的受剪承载力。为了研究胶合木-混凝土组合梁螺钉连接件的受力性能,对10组共30个胶合木-混凝土组合梁螺钉连接件进行推出试验研究。根据试验结果,探讨了螺钉连接件的受力特性和破坏机制,分析了螺钉直径、螺钉嵌入长细比、混凝土强度、螺钉布置方式等因素对螺钉连接件受剪承载力的影响。结果表明,螺钉连接件受剪承载力随螺钉直径的增大而增大; 螺钉连接件受剪承载力随螺钉嵌入木材部分长细比的增大而增大,但增长幅度趋于平缓; 混凝土强度和螺钉布置方式对受剪承载力的影响很小。研究结果可以为胶合木-混凝土组合梁的设计和工程应用提供参考。
Abstract:
The shear connector in glulam-concrete composite beams is a critical part of the whole beam.The shear connector must has a certain degree of rigidity as well as adequate shear bearing capacity,to resist the longitudinal shear force and slip between the beam and the concrete.In order to study the mechanical behavior of the screw connectors in glulam-concrete composite beams,a total of 30 push-out tests were constructed.Based on the test results,the failure mechanism and mechanical characteristics of the screw connector were discussed.The effects of screw diameter,embedded slender ratio of screw,concrete strength and screw arrangement on the shear bearing capacity were also analyzed. The results show that shear bearing capacity of shear connectors increases with the screw diameter.The shear bearing capacity of shear connectors also increases with the embedded ratio of screw, but it will increase smoothly when the embedded slender ratio reaches to some value. Concrete strength and screw arrangement have little influence on the shear bearing capacity of screw connectors. The research results can provide a basis for the design and engineering application of glulam-concrete composite beams.

参考文献/References:

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相似文献/References:

[1]陈春,胡夏闽,韦尘雨.碳纤维增强复合材料增强胶合木-混凝土组合梁静力试验[J].南京工业大学学报(自然科学版),2015,37(06):75.[doi:10.3969/j.issn.1671-7627.2015.06.014]
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备注/Memo

备注/Memo:
收稿日期:2016-06-20
基金项目:国家自然科学基金(51478220)
作者简介:江雨辰(1990—),男,江苏泰州人,博士生,主要研究方向为组合结构; 胡夏闽(联系人),教授,E-mail:verbundbau@163.com.
引用本文:江雨辰,胡夏闽,曹雪娇,等.胶合木-混凝土组合梁螺钉连接件推出试验研究[J].南京工业大学学报(自然科学版),2016,38(5):74-80..
更新日期/Last Update: 2016-09-20