EFFECT OF DETAILED FORMATIONS ON THE PLANE SHEAR MECHANICAL PROPERTY OF HAIRPIN CONNECTORS IN PRECAST RC FLOOR SLABS
-
摘要: 预制楼板连接件细部构造对其抗剪性能的影响较大,但是目前对连接件细部构造的规定不够明确。以发卡式连接件的埋置深度、嵌条长度、锚板厚度及其挑出长度为参数,通过对其进行平面内剪切荷载作用下的数值模拟分析,研究连接件细部构造对发卡式连接件抗剪承载力、刚度和变形能力等方面的影响。在分析的基础上提出了发卡式连接件的细部构造建议,为发卡式连接件的设计和施工提供参考。Abstract: The detailed formations of precast floor slab connectors have significant effect on its shear capacity, but there is no such specific provision on it at present.The effects of detailed formations on the shear strength, stiffness and deformation capacity of hairpin connectors(HPC) are studied, through numerical simulation analysis of it under in-plane shear force.The imbedded depth(d), slug length(h), steel plate thickness(t)and its stickout(s)are taken as parameters.On the basis of analysis, the recommendations on formation details of HPC are proposed for design and construction.
-
Key words:
- detailed formation /
- precast floor slab /
- hairpin connector /
- shear capacity
-
[2] Yee A A. Structural and Economic Benefits of Precast /?Prestressed Concrete Construction [J]. PCI Journal,2001,46(3):34-42. Yee A A. Social and Environmental Benefits of Precast Concrete?Technology [J]. PCI Journal,2001,46(3):14-19. [3] PCI Industry Handbook Committee. PCI Design Handbook:?Precast and Prestressed Concrete [S].6thed. Chicago: PCI,2004. [4] Cao L, Naito C . Design of Precast Diaphragm Chord Connections?for In-Plane Tension Demands[J]. ASCE, Journal of Structural?Engineers,2007,133(11):1627-1635. [5] Cao L, Naito C . Precast Concrete Double-tee Connections, part 2: Shear Behavior[J]. PCI Journal,2009(2):97-115. [6] Pincheira J A, Oliva M G, W Zheng. Behavior of Double-Tee?Flange Connectors Subjected to In-Plane Monotonic and Reversed?Cyclic Loads[J]. PCI Journal,2005(6):2-24. [7] 庞瑞,梁书亭,朱筱俊.预制混凝土双 T 板楼盖应用与研究综述[J].工业建筑,2011,41(3):121-126. [8] 庞瑞,梁书亭,朱筱俊.新型全预制装配式 RC 楼盖平面内力学特征研究[J].特种结构,2010,27(1):30-35. [9] American Concrete Institute (ACI) Committee 318. Building?Code Requirements for Structural Concrete (ACI318-05) and?Commentary[S]. Farmington Hills, MI: ACI.2005 [10] 孟瑶,梁书亭,朱筱俊,等.预制装配式双 T 板楼盖翼缘连接件抗剪承载力分析[J].建筑技术,2010,40(S1):213-217. [11] Martin L D, Perry C J. PCI Design Handbook: Precast and?Prestressed Concrete[M].6thed. PCI:2004. [12] Zheng W, Oliva M O. A Practical Method to Estimate Elastic?Deformation of Precast Pretopped Double-Tee Diaphragms[J]. PCI Journal,2005,50(2):44-45.
点击查看大图
计量
- 文章访问数: 91
- HTML全文浏览量: 5
- PDF下载量: 99
- 被引次数: 0